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.
LHR — ATH
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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

£95

One-way from

£50

Popular in

December

Cheapest in

January

Average price

£144
British Airways
  • British Airways
  • 15/1-29/1
  • Nonstop
  • 6h 45m total
  • London to Southeast Europe
Aegean Airlines
  • Aegean Airlines
  • 3/11
  • Nonstop
  • 3h 35m total
  • London to Southeast Europe
High demand for flights, 18% potential price rise
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in October 2025

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

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Southeast Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Southeast Europe that are best for you.

Fly from

Heathrow

Fly to

Southeast Europe

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
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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?

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.

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?

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.

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

Explore weekly flight availability from Heathrow to Southeast Europe. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 October 2025.

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

Get insights into the airlines that provide service to Southeast Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Europe. Reviews last updated 17 October 2025.
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.

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Comfort

7.9

Boarding

7.8

Crew

8.6

Entertainment

6.9

Food

7.4

Overall

8.1

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

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?

    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?

  • 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

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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

Discover the top 10 airlines that operate flights from Heathrow to Southeast Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£14Average£86FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£26Average£141FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
RyanairCheapest£30Average£101FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£36Average£109FlexibilityNo cancel feeOn-time83%
Search Wizz Air flights
Wizz AirCheapest£41Average£90FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Air SerbiaCheapest£53Average£159FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
Sky ExpressCheapest£57Average£179FlexibilityNo cancel feeOn-timeN/A
Search Sky Express flights
easyJetCheapest£59Average£228FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aegean AirlinesCheapest£112Average£240FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
Air FranceCheapest£115Average£189FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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

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.

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

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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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