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Cheap flights from London Heathrow Airport to Southeast Europe from £53

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ATH
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 December 2025.

Tue 30/1217:45LHR - OTP
Nonstop3h 15mBritish Airways
Thu 15/121:00OTP - LHR
Nonstop3h 30mBritish Airways
Deal found 10/12£113
Wed 31/1219:00LHR - ATH
Nonstop3h 35mAegean Airlines
Tue 13/116:00ATH - LHR
Nonstop3h 55mAegean Airlines
Deal found 11/12£125
Wed 31/1219:40LHR - ATH
Nonstop3h 40mBritish Airways
Mon 2/220:10ATH - LHR
Nonstop4h 00mBritish Airways
Deal found 11/12£134
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Tue 16/1208:00OTP - LHR
Nonstop3h 50mBritish Airways
Deal found 10/12£134
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Fri 19/1208:00OTP - LHR
Nonstop3h 50mBritish Airways
Deal found 11/12£137
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Sun 21/1207:35OTP - LHR
Nonstop3h 50mBritish Airways
Deal found 11/12£140
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Mon 15/1220:25OTP - LHR
Nonstop3h 30mBritish Airways
Deal found 11/12£145
Wed 31/1222:15LHR - ATH
Nonstop3h 35mAegean Airlines
Sun 1/209:05ATH - LHR
Nonstop4h 05mAegean Airlines
Deal found 11/12£145
Wed 31/1219:40LHR - ATH
Nonstop3h 40mBritish Airways
Thu 15/119:50ATH - LHR
Nonstop4h 00mBritish Airways
Deal found 11/12£147
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Thu 18/1216:35OTP - LHR
Nonstop3h 30mBritish Airways
Deal found 11/12£149
Wed 31/1219:40LHR - ATH
Nonstop3h 40mBritish Airways
Thu 29/116:10ATH - LHR
Nonstop4h 00mBritish Airways
Deal found 11/12£149
Fri 12/1218:30LHR - OTP
Nonstop3h 15mBritish Airways
Wed 17/1208:05OTP - LHR
Nonstop3h 50mBritish Airways
Deal found 11/12£152

Find 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 12 December 2025.

Round-trip from

£99

One-way from

£53

Popular in

August

Cheapest in

January

Average price

£210
British Airways
  • British Airways
  • 9/2-12/2
  • Nonstop
  • 6h 45m total
  • London to Southeast Europe
Search Deals
Aegean Airlines
  • Aegean Airlines
  • 13/1
  • 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 (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 12 December 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

Wed 28/1

17:40-22:55

Nonstop3h 15m

Bucharest Otopeni Intl

Fri 30/1

20:20-21:50

Nonstop3h 30m

£102

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Mon 2/3

18:30-23:45

Nonstop3h 15m

Bucharest Otopeni Intl

Tue 3/3

16:40-18:10

Nonstop3h 30m

£105

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Fri 6/2

14:15-19:30

Nonstop3h 15m

Bucharest Otopeni Intl

Mon 9/2

20:25-21:55

Nonstop3h 30m

£105

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Sat 24/1

18:10-23:25

Nonstop3h 15m

Bucharest Otopeni Intl

Sat 31/1

08:05-10:00

Nonstop3h 55m

£105

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Thu 5/2

18:15-23:30

Nonstop3h 15m

Bucharest Otopeni Intl

Sun 8/2

07:35-09:25

Nonstop3h 50m

£106

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Fri 16/1

14:15-19:30

Nonstop3h 15m

Bucharest Otopeni Intl

Wed 21/1

08:05-09:55

Nonstop3h 50m

£109

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

Fri 16/1

14:15-19:30

Nonstop3h 15m

Bucharest Otopeni Intl

Thu 22/1

08:00-09:50

Nonstop3h 50m

£109

LondonSplit

LHR - SPU

LHRSPU

London Heathrow

Sat 24/1

16:50-15:50

1 stop22h 00m

Split

Mon 26/1

06:50-16:05

1 stop10h 15m

£125

LondonTirana

LHR - TIA

LHRTIA

London Heathrow

Mon 26/1

22:15-17:45

1 stop18h 30m

Tirana Rinas

Mon 2/2

10:05-21:15

1 stop12h 10m

£129

LondonMykonos

LHR - JMK

LHRJMK

London Heathrow

Mon 27/4

07:25-18:05

1 stop8h 40m

Mikonos

Fri 1/5

13:45-21:40

1 stop9h 55m

£138

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 £30). Flying from London Heathrow Airport to Southeast Europe in July is currently the most expensive (average of £86). 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 12 December 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 evening, which can drop the price by up to 16% 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 6 December 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. Saturday evenings 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 12 December 2025.

The most flights from LHR to zzYMH are scheduled on a Thursday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 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 12 December 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.
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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
831 reviews
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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
879 reviews
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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
7,626 reviews
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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
7,571 reviews
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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
210 reviews
Aegean Airlines
8.1
Very Good
831 reviews
Check prices

Food

7.4

Comfort

7.9

Crew

8.6

Entertainment

6.9

Overall

8.1

Boarding

7.8

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 £102. 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 Wizz Air, with whom users have recently found tickets for as low as £14. However, be on the lookout for offers from Wizz Air and British Airways, 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 (86%), Aegean Airlines (85%) and Singapore Airlines (84%).

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

    On average you can expect to pay £325 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £75 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £110.

  • 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 £30). Flying from London Heathrow Airport to Southeast Europe in July is currently the most expensive (average of £86). 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.
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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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£26Average£134FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
RyanairCheapest£28Average£119FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£32Average£68FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£36Average£107FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Wizz AirCheapest£37Average£113FlexibilityNo cancel feeOn-time83%
Search Wizz Air flights
Air SerbiaCheapest£53Average£165FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
Sky ExpressCheapest£58Average£209FlexibilityNo cancel feeOn-timeN/A
Search Sky Express flights
easyJetCheapest£83Average£235FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aegean AirlinesCheapest£107Average£237FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
Scandinavian AirlinesCheapest£114Average£206FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

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?

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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