How long is the flight from London Heathrow Airport to Southeast Europe?

A quick flight from London Heathrow Airport to Southeast Europe can take about 3h 15m. British Airways provides one of the quickest options available for as low as £104. Airlines will cover a distance of 1307 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from London Heathrow Airport to Southeast Europe one-way?

The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £61. However, be on the lookout for offers from Aegean Airlines and Air Serbia, as they are both options that can get you from London Heathrow Airport to Southeast Europe for a low price.

In terms of precipitation, rainfall in Southeast Europe ranges from 5.0 - 64.0 inches per month. December is typically the wettest month, when rainfall can reach 64.0 mm. July is typically the driest time to visit Southeast Europe when rainfall is around 5.0 mm.

If weather is an important factor for your trip to Southeast Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.0 C).

What are the most popular routes from London Heathrow Airport to Southeast Europe?

The most popular route from London Heathrow Airport to Southeast Europe is London Heathrow - Athens Eleftherios V.. You may also consider London Heathrow - Bucharest Otopeni Intl or London Heathrow - Tirana Rinas.

What are the cheapest flights from London Heathrow Airport to Southeast Europe?

On average you can expect to pay £443 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £66 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £104.

What are the most reliable airlines from London Heathrow Airport to Southeast Europe?

The top 3 most reliable airlines when flying from London Heathrow Airport to Southeast Europe are Air Canada (69%), Aegean Airlines (69%) and Singapore Airlines (64%).

What are the most popular airlines that fly from London Heathrow Airport to Southeast Europe?

The most popular airlines flying from London Heathrow Airport to Southeast Europe are British Airways, Aegean Airlines and Lufthansa. Something to consider prior to booking your flight.

Can I find deals for flights from Heathrow to Southeast Europe that include hotel bookings?

Yes. In addition to deals on Heathrow to Southeast Europe flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Southeast Europe?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Southeast Europe.

Can I find deals for business class flights from Heathrow to Southeast Europe?

Yes. Cheapflights offers flight deals from Heathrow to Southeast Europe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£50+ Flights from London Heathrow Airport to Southeast Europe

Cheap flight deals from Heathrow to Southeast Europe

Round-trip from	£95
One-way from	£50
Popular in	December
Cheapest in	January
Average price	£144

British Airways
15/1-29/1
Nonstop
6h 45m total
London to Southeast Europe

Search Deals

Aegean Airlines
3/11
Nonstop
3h 35m total
London to Southeast Europe

Search Deals

High demand for flights, 18% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from Heathrow to Southeast Europe

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Southeast Europe
Explore the most affordable flight options available from Heathrow to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Sun 23/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Tue 25/1108:00OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£101

Wed 19/1117:40LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£101

Sat 1/1106:05LHR - SOF

Nonstop3h 10mBritish Airways

Wed 19/1121:00SOF - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£103

Thu 20/1118:15LHR - OTP

Nonstop3h 15mBritish Airways

Sat 22/1108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 15/10£103

Mon 3/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Mon 24/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£103

Sun 30/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Sun 7/1207:35OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£104

Fri 14/1114:15LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£105

Mon 8/1222:15LHR - ATH

Nonstop3h 35mAegean Airlines

Sun 14/1213:25ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 14/10£105

Fri 28/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Mon 1/1219:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£106

Sat 29/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Sat 6/1208:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 15/10£107

Sat 22/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Tue 25/1108:00OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£109

Mon 24/1109:40LHR - OTP

Nonstop3h 15mBritish Airways

Wed 26/1115:50OTP - LHR

Nonstop3h 40mBritish Airways

Deal found 15/10£109

Best flights from Heathrow to Southeast Europe
Discover carefully curated flight deals from Heathrow to Southeast Europe that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 October 2025.

Thu 22/118:15LHR - OTP

Nonstop3h 15mBritish Airways

Mon 26/108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 16/10£104

Fri 14/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Sun 16/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£146

Thu 20/1108:45LHR - LJU

1 stop9h 45mLufthansa

Sat 22/1109:45LJU - LHR

1 stop4h 15mLufthansa

Deal found 15/10£146

Thu 20/1109:55LHR - SOF

1 stop9h 45mMultiple Airlines

Sat 22/1106:30SOF - LHR

1 stop8h 35mMultiple Airlines

Deal found 16/10£147

Fri 14/1106:30LHR - SOF

1 stop9h 20mLOT

Fri 28/1118:35SOF - LHR

1 stop5h 25mLOT

Deal found 17/10£151

Sun 29/319:25LHR - SKG

1 stop5h 45mAir Serbia

Sat 11/404:45SKG - LHR

1 stop16h 20mAir Serbia

Deal found 15/10£153

Thu 20/1110:00LHR - OTP

1 stop5h 10mKLM

Sat 22/1113:55OTP - LHR

1 stop5h 05mKLM

Deal found 15/10£156

Fri 20/314:50LHR - SJJ

1 stop7h 10mAustrian Airlines

Sun 22/314:45SJJ - LHR

1 stop4h 55mAustrian Airlines

Deal found 16/10£170

Thu 30/1020:05LHR - TIA

1 stop11h 55mSWISS

Fri 7/1109:45TIA - LHR

1 stop9h 05mSWISS

Deal found 14/10£170

Wed 26/1117:40LHR - OTP

Nonstop3h 15mBritish Airways

Fri 28/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£108

Fri 14/1114:15LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1116:45OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£108

Thu 6/1108:25LHR - TIA

Nonstop3h 00mBritish Airways

Thu 13/1113:15TIA - LHR

Nonstop3h 25mBritish Airways

Deal found 15/10£112

Mon 8/1222:15LHR - SKG

1 stop8h 35mAegean Airlines

Sun 14/1209:05SKG - LHR

1 stop8h 25mAegean Airlines

Deal found 15/10£146

Sat 1/1107:55LHR - TIA

Nonstop3h 00mBritish Airways

Mon 1/1213:00TIA - LHR

Nonstop3h 25mBritish Airways

Deal found 16/10£115

Wed 19/1106:50LHR - LJU

1 stop5h 05mMultiple Airlines

Sat 22/1109:45LJU - LHR

1 stop8h 20mMultiple Airlines

Deal found 17/10£156

Sat 10/108:40LHR - OTP

1 stop6h 30mKLM

Thu 15/113:55OTP - LHR

1 stop5h 05mKLM

Deal found 15/10£156

Fri 14/1106:30LHR - LJU

1 stop5h 35mLOT

Mon 17/1113:45LJU - LHR

1 stop20h 50mLOT

Deal found 15/10£156

Fri 31/1006:35LHR - SOF

1 stop4h 40mLufthansa

Sun 2/1119:05SOF - LHR

1 stop5h 50mLufthansa

Deal found 17/10£157

Mon 1/1222:15LHR - RHO

1 stop13h 45mAegean Airlines

Mon 8/1215:15RHO - LHR

1 stop8h 00mAegean Airlines

Deal found 17/10£147

Fri 21/1113:45LHR - LJU

1 stop7h 45mMultiple Airlines

Sun 23/1109:45LJU - LHR

1 stop7h 05mMultiple Airlines

Deal found 16/10£156

Sat 6/1220:05LHR - TIA

1 stop11h 55mSWISS

Tue 9/1214:25TIA - LHR

1 stop5h 50mSWISS

Deal found 15/10£171

Thu 27/1106:00LHR - TIA

1 stop4h 30mAustrian Airlines

Sun 30/1112:15TIA - LHR

1 stop21h 05mAustrian Airlines

Deal found 17/10£171

Sat 21/308:45LHR - SOF

1 stop7h 35mLufthansa

Tue 24/314:00SOF - LHR

1 stop5h 05mLufthansa

Deal found 15/10£157

Sat 28/216:25LHR - OTP

1 stop6h 05mKLM

Tue 3/313:55OTP - LHR

1 stop5h 05mKLM

Deal found 16/10£157

Sat 22/1106:30LHR - LJU

1 stop9h 00mLOT

Mon 24/1113:45LJU - LHR

1 stop20h 50mLOT

Deal found 16/10£158

Sat 29/1106:05LHR - SOF

Nonstop3h 10mBritish Airways

Sat 6/1212:05SOF - LHR

Nonstop3h 45mBritish Airways

Deal found 15/10£119

Mon 1/1222:15LHR - RHO

1 stop9h 50mAegean Airlines

Thu 4/1220:00RHO - LHR

1 stop27h 15mAegean Airlines

Deal found 15/10£147

Fri 31/1006:35LHR - SOF

1 stop4h 40mLufthansa

Mon 3/1119:05SOF - LHR

1 stop5h 50mLufthansa

Deal found 17/10£157

Wed 4/320:05LHR - SJJ

1 stop11h 55mSWISS

Mon 9/314:45SJJ - LHR

1 stop5h 30mSWISS

Deal found 15/10£174

Sat 29/1106:05LHR - SOF

Nonstop3h 10mBritish Airways

Wed 3/1221:00SOF - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£119

Direct flights from Heathrow to Southeast Europe
Explore direct flight options from Heathrow to Southeast Europe based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 October 2025.

Thu 15/114:45LHR - OTP

Nonstop3h 15mBritish Airways

Thu 29/121:00OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£95

Sat 10/118:10LHR - OTP

Nonstop3h 15mBritish Airways

Thu 15/121:00OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£99

Sat 28/218:10LHR - OTP

Nonstop3h 15mBritish Airways

Tue 3/316:40OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£100

Sun 23/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Tue 25/1108:00OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£101

Wed 19/1117:40LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£101

Tue 13/122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 14/116:00ATH - LHR

Nonstop3h 55mAegean Airlines

Deal found 15/10£101

Sat 24/109:55LHR - OTP

Nonstop3h 15mBritish Airways

Sat 31/108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 16/10£102

Sat 1/1106:05LHR - SOF

Nonstop3h 10mBritish Airways

Wed 19/1121:00SOF - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£103

Thu 20/1118:15LHR - OTP

Nonstop3h 15mBritish Airways

Sat 22/1108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 15/10£103

Mon 3/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Mon 24/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£103

Sun 30/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Sun 7/1207:35OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£104

Mon 12/122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 14/119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£104

Last-minute flights from Heathrow to Southeast Europe
Discover last-minute flight deals from Heathrow to Southeast Europe. Data last updated 17 October 2025 and is based on user searches.

Sat 1/1106:05LHR - SOF

Nonstop3h 10mBritish Airways

Wed 19/1121:00SOF - LHR

Nonstop3h 30mBritish Airways

Deal found 15/10£103

Mon 3/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Mon 24/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£103

Fri 14/1114:15LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£105

Wed 19/1117:40LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 16/10£101

Thu 20/1118:15LHR - OTP

Nonstop3h 15mBritish Airways

Sat 22/1108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 15/10£103

Sat 22/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Tue 25/1108:00OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£109

Sat 22/1107:55LHR - TIA

Nonstop3h 00mBritish Airways

Tue 25/1114:00TIA - LHR

Nonstop3h 25mBritish Airways

Deal found 16/10£110

Sun 23/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Tue 25/1108:00OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£101

Mon 24/1109:40LHR - OTP

Nonstop3h 15mBritish Airways

Wed 26/1115:50OTP - LHR

Nonstop3h 40mBritish Airways

Deal found 15/10£109

Fri 28/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Mon 1/1219:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 15/10£106

Sat 29/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Sat 6/1208:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 15/10£107

Sun 30/1109:50LHR - OTP

Nonstop3h 15mBritish Airways

Sun 7/1207:35OTP - LHR

Nonstop3h 50mBritish Airways

Deal found 16/10£104

One-way flights from Heathrow to Southeast Europe
Search for one-way flight options from Heathrow to Southeast Europe. Find affordable one-way fares based on user searches. Data last updated 17 October 2025.

Mon 3/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 15/10£50

Wed 12/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 16/10£51

Tue 4/1119:00LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 15/10£52

Sun 11/122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 16/10£53

Sun 14/1222:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 15/10£56

Thu 15/110:30LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 15/10£58

Tue 30/1217:45LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 14/10£60

Thu 11/1222:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 15/10£60

Wed 31/1217:40LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 15/10£60

Wed 14/117:40LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 17/10£61

Sat 22/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 16/10£62

Sat 8/1118:10LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 15/10£63

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Southeast Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Thu 22/1

18:15-23:30

Nonstop3h 15m

Bucharest Otopeni Intl

Mon 26/1

08:05-10:00

Nonstop3h 55m

£104

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Wed 26/11

17:40-22:55

Nonstop3h 15m

Bucharest Otopeni Intl

Fri 28/11

20:20-21:50

Nonstop3h 30m

£108

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Fri 14/11

14:15-19:30

Nonstop3h 15m

Bucharest Otopeni Intl

Fri 21/11

16:45-18:15

Nonstop3h 30m

£108

LondonTirana

LHR - TIA

LHRTIA

London Heathrow

Thu 6/11

08:25-12:25

Nonstop3h 00m

Tirana Rinas

Thu 13/11

13:15-15:40

Nonstop3h 25m

£112

LondonTirana

LHR - TIA

LHRTIA

London Heathrow

Sat 1/11

07:55-11:55

Nonstop3h 00m

Tirana Rinas

Mon 1/12

13:00-15:25

Nonstop3h 25m

£115

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 29/11

06:05-11:15

Nonstop3h 10m

Sofia

Sat 6/12

12:05-13:50

Nonstop3h 45m

£119

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 29/11

06:05-11:15

Nonstop3h 10m

Sofia

Wed 3/12

21:00-22:30

Nonstop3h 30m

£119

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Fri 14/11

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

Sun 16/11

19:10-21:15

Nonstop4h 05m

£146

LondonLjubljana

LHR - LJU

LHRLJU

London Heathrow

Thu 20/11

08:45-19:30

1 stop9h 45m

Ljubljana Joze Pucnik

Sat 22/11

09:45-13:00

1 stop4h 15m

£146

LondonThessaloniki

LHR - SKG

LHRSKG

London Heathrow

Mon 8/12

22:15-08:50

1 stop8h 35m

Thessaloniki Makedonia

Sun 14/12

09:05-15:30

1 stop8h 25m

£146

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 60 results

...

Best time to book a flight from Heathrow to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from Heathrow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Southeast Europe

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Europe?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Europe (average of £28). Flying from London Heathrow Airport to Southeast Europe in April is currently the most expensive (average of £99). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to YMH?

When flying from London Heathrow Airport to Southeast Europe, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Southeast Europe?

Travellers seeking maximum savings on their London Heathrow Airport to Southeast Europe flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Southeast Europe

The most flights from LHR to zzYMH are scheduled on a Wednesday (20 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Southeast Europe

Read reviews from past customers who have flown with Aegean Airlines, Austrian Airlines, andLufthansa from London Heathrow Airport to Southeast Europe. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Aegean Airlines

8.1

Very Good

811 reviews

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Austrian Airlines

7.6

Good

856 reviews

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Lufthansa

6.8

Okay

7,502 reviews

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

British Airways

6.7

Okay

7,459 reviews

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Air Serbia

6.2

Okay

203 reviews

Aegean Airlines

8.1

Very Good

811 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

How long is the flight from London Heathrow Airport to Southeast Europe?
A quick flight from London Heathrow Airport to Southeast Europe can take about 3h 15m. British Airways provides one of the quickest options available for as low as £104. Airlines will cover a distance of 1307 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London Heathrow Airport to Southeast Europe one-way?
The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £61. However, be on the lookout for offers from Aegean Airlines and Air Serbia, as they are both options that can get you from London Heathrow Airport to Southeast Europe for a low price.
What are the most popular routes from London Heathrow Airport to Southeast Europe?
The most popular route from London Heathrow Airport to Southeast Europe is London Heathrow - Athens Eleftherios V.. You may also consider London Heathrow - Bucharest Otopeni Intl or London Heathrow - Tirana Rinas.
What are the most reliable airlines from London Heathrow Airport to Southeast Europe?
The top 3 most reliable airlines when flying from London Heathrow Airport to Southeast Europe are Air Canada (69%), Aegean Airlines (69%) and Singapore Airlines (64%).
What are the cheapest flights from London Heathrow Airport to Southeast Europe?
On average you can expect to pay £443 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £66 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £104.
Can I find deals for flights from Heathrow to Southeast Europe that include hotel bookings?
Yes. In addition to deals on Heathrow to Southeast Europe flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Southeast Europe?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Southeast Europe.
Can I find deals for business class flights from Heathrow to Southeast Europe?
Yes. Cheapflights offers flight deals from Heathrow to Southeast Europe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Southeast Europe?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Europe (average of £28). Flying from London Heathrow Airport to Southeast Europe in April is currently the most expensive (average of £99). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Southeast Europe

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Top 10 airlines flying from Heathrow to Southeast Europe

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£14	Average£86	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Wizz Air	Cheapest£26	Average£141	FlexibilityNo cancel fee	On-timeN/A	Search Wizz Air flights
Ryanair	Cheapest£30	Average£101	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Wizz Air	Cheapest£36	Average£109	FlexibilityNo cancel fee	On-time83%	Search Wizz Air flights
Wizz Air	Cheapest£41	Average£90	FlexibilityNo cancel fee	On-timeN/A	Search Wizz Air flights
Air Serbia	Cheapest£53	Average£159	FlexibilityNo cancel fee	On-timeN/A	Search Air Serbia flights
Sky Express	Cheapest£57	Average£179	FlexibilityNo cancel fee	On-timeN/A	Search Sky Express flights
easyJet	Cheapest£59	Average£228	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Aegean Airlines	Cheapest£112	Average£240	FlexibilityNo cancel fee	On-time87%	Search Aegean Airlines flights
Air France	Cheapest£115	Average£189	FlexibilityNo cancel fee	On-time77%	Search Air France flights

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When you search for this flight from Heathrow to Southeast Europe, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Europe from Heathrow.

Can Cheapflights find flights from Heathrow to Southeast Europe with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Southeast Europe, users can toggle the no change fees filter when performing a flight search.

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Cheap flights from London Heathrow Airport to Southeast Europe from £50

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Southeast Europe

Keep the following information in mind while searching for Heathrow to Southeast Europe flight deals. Data was last updated 17 October 2025.

Round-trip from

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Find flight deals from Heathrow to Southeast Europe

Cheapest flights from Heathrow to Southeast EuropeExplore the most affordable flight options available from Heathrow to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Explore the most affordable flight options available from Heathrow to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Southeast Europe that are best for you.

Best time to book a flight from Heathrow to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Southeast Europe

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Europe?

What is the cheapest time of day to fly from LHR to YMH?

Find hourly flight availability from Heathrow to Southeast Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 October 2025.

What is the cheapest day to fly from London Heathrow Airport to Southeast Europe?

Use this chart to determine the cheapest time to fly return from Heathrow to Southeast Europe. Price data was last updated on 12 October 2025.

Weekly flight availability from London Heathrow Airport to Southeast Europe

Reviews of airlines servicing Southeast Europe

Read reviews from past customers who have flown with Aegean Airlines, Austrian Airlines, andLufthansa from London Heathrow Airport to Southeast Europe. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Southeast Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from London Heathrow Airport to Southeast Europe?

What are the cheapest airlines to fly from London Heathrow Airport to Southeast Europe one-way?

What are the most popular routes from London Heathrow Airport to Southeast Europe?

What are the most reliable airlines from London Heathrow Airport to Southeast Europe?

What are the cheapest flights from London Heathrow Airport to Southeast Europe?

Can I find deals for flights from Heathrow to Southeast Europe that include hotel bookings?

How can I find direct flights from Heathrow to Southeast Europe?

Can I find deals for business class flights from Heathrow to Southeast Europe?

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Europe?

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Alternative routes for Heathrow to Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to Southeast Europe

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How does Cheapflights help users find flights from Heathrow to Southeast Europe?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Southeast Europe?

Can Cheapflights find flights from Heathrow to Southeast Europe with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Southeast Europe become cheaper?

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Cheapest flights from Heathrow to Southeast Europe
Explore the most affordable flight options available from Heathrow to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.