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. Aegean Airlines provides one of the quickest options available for as low as £103. 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 Aegean Airlines, with whom users have recently found tickets for as low as £47. However, be on the lookout for offers from British Airways and Vueling, 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 £518 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £78 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £118.

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 (75%), Aegean Airlines (73%) and LATAM Airlines (71%).

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 Aegean Airlines, Air France and British Airways. Something to consider prior to booking your flight.

How far in advance should I book a flight from London Heathrow Airport to Southeast Europe?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 31 days in advance, which can save you up to 36% on flights from London Heathrow Airport to Southeast Europe compared to booking the week you need them. Waiting 31 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £144. For sooner than that we have options available in the next 3 days from £195.

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

January is one of the best times of the year to fly to Southeast Europe from London Heathrow Airport. Prices for January average £145 per person but you can even find prices for as low as £26. The most expensive prices can be found in the month of August. Opting for a January flight can save you 47% on your journey compared to booking in August

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.

£45+ Flights from London Heathrow Airport to Southeast Europe

Cheap flight deals from Heathrow to Southeast Europe

Round-trip from	£90
One-way from	£45
Popular in	August
Cheapest in	January
Average price	£214

Aegean Airlines
18/1-28/1
Nonstop
7h 30m total
London to Southeast Europe

Search Deals

Aegean Airlines
16/9
Nonstop
3h 35m total
London to Southeast Europe

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (£36 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Heathrow to Southeast Europe

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 29 August 2025.

Mon 13/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 21/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 27/8£92

Tue 4/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 2/1219:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£96

Fri 31/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£97

Mon 10/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 19/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£98

Sat 8/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 19/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£100

Mon 27/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 28/8£103

Fri 17/1020:05LHR - OTP

Nonstop3h 20mBritish Airways

Fri 7/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 27/8£104

Tue 7/1016:35LHR - ATH

Nonstop3h 40mAegean Airlines

Tue 21/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 27/8£104

Wed 19/1109:30LHR - OTP

Nonstop3h 15mBritish Airways

Sat 22/1108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 28/8£104

Sun 12/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 21/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 27/8£104

Thu 20/1118:15LHR - OTP

Nonstop3h 15mBritish Airways

Fri 21/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 27/8£106

Fri 21/1119:00LHR - SOF

1 stop17h 25mMultiple Airlines

Sun 23/1114:30SOF - LHR

Nonstop3h 30mMultiple Airlines

Deal found 28/8£107

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 29 August 2025.

Wed 29/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 29/8£100

Wed 25/217:40LHR - OTP

Nonstop3h 15mBritish Airways

Wed 11/315:50OTP - LHR

Nonstop3h 40mBritish Airways

Deal found 27/8£103

Sun 12/1022:15LHR - SOF

1 stop9h 45mMultiple Airlines

Sun 19/1021:10SOF - LHR

Nonstop3h 15mMultiple Airlines

Deal found 28/8£119

Fri 13/216:50LHR - SPU

1 stop21h 30mCroatia Airlines

Mon 16/206:50SPU - LHR

1 stop10h 15mCroatia Airlines

Deal found 27/8£132

Sat 4/1020:50LHR - DBV

1 stop11h 10mVueling

Tue 7/1017:00DBV - LHR

2 stops17h 10mVueling

Deal found 28/8£138

Wed 24/920:05LHR - CHQ

1 stop12h 10mSWISS

Mon 29/920:45CHQ - LHR

1 stop13h 10mSWISS

Deal found 28/8£146

Sun 28/906:00LHR - DBV

1 stop5h 15mAustrian Airlines

Thu 2/1013:00DBV - LHR

1 stop9h 40mAustrian Airlines

Deal found 28/8£152

Sun 7/907:25LHR - JTR

1 stop7h 25mLufthansa

Tue 16/920:05JTR - LHR

1 stop14h 10mLufthansa

Deal found 28/8£167

Thu 30/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 29/8£101

Fri 17/1020:05LHR - OTP

Nonstop3h 20mBritish Airways

Fri 7/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 27/8£104

Thu 30/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 5/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 29/8£101

Wed 19/1109:30LHR - OTP

Nonstop3h 15mBritish Airways

Sat 22/1108:05OTP - LHR

Nonstop3h 55mBritish Airways

Deal found 28/8£104

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 29 August 2025.

Sun 18/122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 28/116:00ATH - LHR

Nonstop3h 55mAegean Airlines

Deal found 27/8£90

Mon 13/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 21/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 27/8£92

Tue 4/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 2/1219:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£96

Fri 31/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£97

Mon 10/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 19/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£98

Wed 29/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 29/8£100

Thu 30/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 5/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 29/8£101

Wed 11/216:35LHR - ATH

Nonstop3h 45mAegean Airlines

Wed 18/219:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 27/8£102

Wed 25/217:40LHR - OTP

Nonstop3h 15mBritish Airways

Wed 11/315:50OTP - LHR

Nonstop3h 40mBritish Airways

Deal found 27/8£103

Mon 27/1022:15LHR - ATH

Nonstop3h 35mAegean Airlines

Thu 6/1119:10ATH - LHR

Nonstop4h 05mAegean Airlines

Deal found 28/8£103

Fri 17/1020:05LHR - OTP

Nonstop3h 20mBritish Airways

Fri 7/1120:20OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 27/8£104

Tue 7/1016:35LHR - ATH

Nonstop3h 40mAegean Airlines

Tue 21/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 27/8£104

Last-minute flights from Heathrow to Southeast Europe
Discover last-minute flight deals from Heathrow to Southeast Europe. Data last updated 29 August 2025 and is based on user searches.

Tue 16/920:05LHR - OTP

Nonstop3h 20mBritish Airways

Tue 21/1018:15OTP - LHR

Nonstop3h 25mBritish Airways

Deal found 28/8£117

Tue 23/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Wed 24/909:15ATH - LHR

Nonstop4h 00mAegean Airlines

Deal found 27/8£126

Wed 24/920:05LHR - OTP

Nonstop3h 20mBritish Airways

Wed 8/1008:25OTP - LHR

Nonstop3h 35mBritish Airways

Deal found 27/8£127

Thu 25/919:05LHR - OTP

Nonstop3h 20mBritish Airways

Thu 9/1015:40OTP - LHR

Nonstop3h 30mBritish Airways

Deal found 28/8£110

Thu 25/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Fri 3/1016:00ATH - LHR

Nonstop3h 55mAegean Airlines

Deal found 28/8£115

Fri 26/920:05LHR - OTP

Nonstop3h 20mBritish Airways

Tue 14/1018:15OTP - LHR

Nonstop3h 25mBritish Airways

Deal found 28/8£124

Fri 26/919:00LHR - ATH

Nonstop3h 35mAegean Airlines

Fri 3/1016:00ATH - LHR

Nonstop3h 55mAegean Airlines

Deal found 27/8£124

Sat 27/922:15LHR - ATH

Nonstop3h 35mMultiple Airlines

Tue 7/1004:20ATH - LHR

1 stop10h 10mMultiple Airlines

Deal found 27/8£121

Mon 29/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Tue 7/1019:20ATH - LHR

Nonstop3h 50mAegean Airlines

Deal found 28/8£111

Mon 29/916:35LHR - ATH

Nonstop3h 40mMultiple Airlines

Tue 7/1004:20ATH - LHR

1 stop10h 10mMultiple Airlines

Deal found 27/8£124

Tue 30/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Fri 10/1016:00ATH - LHR

Nonstop3h 55mAegean Airlines

Deal found 28/8£119

Tue 30/919:00LHR - TIA

1 stop13h 15mAegean Airlines

Sun 19/1019:05TIA - LHR

1 stop23h 50mAegean Airlines

Deal found 27/8£123

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 29 August 2025.

Tue 16/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£45

Thu 13/1122:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£46

Wed 24/919:00LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£47

Mon 15/919:00LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 27/8£47

Thu 25/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£48

Wed 17/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£50

Wed 3/916:35LHR - ATH

Nonstop3h 40mAegean Airlines

Deal found 28/8£51

Mon 8/922:15LHR - ATH

Nonstop3h 35mAegean Airlines

Deal found 28/8£53

Sat 17/116:35LHR - ATH

Nonstop3h 45mAegean Airlines

Deal found 28/8£55

Tue 23/915:05LHR - OTP

1 stop20h 30mMultiple Airlines

Deal found 27/8£59

Tue 10/210:15LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 27/8£60

Tue 30/1217:45LHR - OTP

Nonstop3h 15mBritish Airways

Deal found 27/8£61

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

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Wed 29/10

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

Thu 6/11

19:10-21:15

Nonstop4h 05m

£100

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Thu 30/10

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

Thu 6/11

19:10-21:15

Nonstop4h 05m

£101

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Thu 30/10

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

Wed 5/11

19:10-21:15

Nonstop4h 05m

£101

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Wed 25/2

17:40-22:55

Nonstop3h 15m

Bucharest Otopeni Intl

Wed 11/3

15:50-17:30

Nonstop3h 40m

£103

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Fri 17/10

20:05-01:25

Nonstop3h 20m

Bucharest Otopeni Intl

Fri 7/11

20:20-21:50

Nonstop3h 30m

£104

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Wed 11/2

19:00-00:35

Nonstop3h 35m

Athens Eleftherios V.

Wed 18/2

19:10-21:15

Nonstop4h 05m

£104

LondonAthens

LHR - ATH

LHRATH

London Heathrow

Fri 31/10

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

Thu 6/11

19:10-21:15

Nonstop4h 05m

£104

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Wed 19/11

09:30-14:45

Nonstop3h 15m

Bucharest Otopeni Intl

Sat 22/11

08:05-10:00

Nonstop3h 55m

£104

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Thu 20/11

18:15-23:30

Nonstop3h 15m

Bucharest Otopeni Intl

Fri 21/11

20:20-21:50

Nonstop3h 30m

£106

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Sat 10/1

18:10-23:25

Nonstop3h 15m

Bucharest Otopeni Intl

Thu 15/1

21:00-22:30

Nonstop3h 30m

£106

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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 £101). Flying from London Heathrow Airport to Southeast Europe in August is currently the most expensive (average of £330). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Southeast Europe as you normally would.

Weekly flight availability from London Heathrow Airport to Southeast Europe

The most flights from LHR to zzYMH are scheduled on a Thursday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 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

789 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

789 reviews

Aegean Airlines

8.1

Very Good

789 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

836 reviews

Aegean Airlines

8.1

Very Good

789 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

7,371 reviews

Aegean Airlines

8.1

Very Good

789 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

7,320 reviews

Aegean Airlines

8.1

Very Good

789 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

6.3

Okay

198 reviews

Aegean Airlines

8.1

Very Good

789 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. Aegean Airlines provides one of the quickest options available for as low as £103. 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 Aegean Airlines, with whom users have recently found tickets for as low as £47. However, be on the lookout for offers from British Airways and Vueling, 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 (75%), Aegean Airlines (73%) and LATAM Airlines (71%).
What are the cheapest flights from London Heathrow Airport to Southeast Europe?
On average you can expect to pay £518 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £78 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £118.
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 £101). Flying from London Heathrow Airport to Southeast Europe in August is currently the most expensive (average of £330). 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

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Top 10 airlines flying from Heathrow to Southeast Europe

Airline	Cheapest	Average	Flexibility	On-time
Wizz Air	Cheapest£26	Average£143	FlexibilityNo cancel fee	On-timeN/A	Search Wizz Air flights
Ryanair	Cheapest£32	Average£85	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Ryanair	Cheapest£32	Average£90	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£36	Average£220	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Wizz Air	Cheapest£36	Average£106	FlexibilityNo cancel fee	On-time83%	Search Wizz Air flights
Wizz Air	Cheapest£41	Average£92	FlexibilityNo cancel fee	On-timeN/A	Search Wizz Air flights
Air Serbia	Cheapest£53	Average£161	FlexibilityNo cancel fee	On-timeN/A	Search Air Serbia flights
Sky Express	Cheapest£57	Average£181	FlexibilityNo cancel fee	On-timeN/A	Search Sky Express flights
TAROM	Cheapest£77	Average£137	FlexibilityNo cancel fee	On-time86%	Search TAROM flights
LOT	Cheapest£110	Average£200	FlexibilityNo cancel fee	On-time81%	Search LOT 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 £45

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 16/9. 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 29 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 29 August 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 29 August 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 29 August 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?

Browse thousands of different options on Cheapflights for your next trip

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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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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 29 August 2025.