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Cheap flights from London to Southeast Europe from £23

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.
LON — ATH
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from London to Southeast Europe

Keep the following information in mind while searching for London to Southeast Europe flight deals. Data was last updated 16 September 2025.

Round-trip from

£48

One-way from

£23

Popular in

August

Cheapest in

January

Average price

£167
Wizz Air
  • Wizz Air
  • 21/11-24/11
  • Nonstop
  • 6h 55m total
  • London to Southeast Europe
Search Deals
Wizz Air
  • Wizz Air
  • 13/1
  • Nonstop
  • 3h 20m total
  • London to Southeast Europe
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£34 potential increase over avg. return price).
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 September 2025
Search Deals

Find flight deals from London to Southeast Europe

Cheapest flights from London to Southeast Europe
Explore the most affordable flight options available from London to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Fri 21/1117:50LTN - OTP
Nonstop3h 20mWizz Air
Mon 24/1107:10OTP - LTN
Nonstop3h 35mWizz Air
Deal found 15/9£48
Mon 6/1016:25STN - OTP
Nonstop3h 10mRyanair
Tue 7/1021:35OTP - STN
Nonstop3h 25mRyanair
Deal found 15/9£48
Thu 30/1017:50LTN - OTP
Nonstop3h 20mWizz Air
Thu 6/1111:55OTP - LTN
Nonstop3h 35mWizz Air
Deal found 15/9£49
Tue 14/1009:10LTN - OTP
Nonstop3h 15mWizz Air
Fri 17/1015:45OTP - LTN
Nonstop3h 30mWizz Air
Deal found 14/9£49
Sun 5/1009:10LTN - OTP
Nonstop3h 15mWizz Air
Sat 11/1005:55OTP - LTN
Nonstop3h 25mWizz Air
Deal found 14/9£50
Sat 4/1020:05STN - OTP
Nonstop3h 10mRyanair
Mon 6/1022:00OTP - STN
Nonstop3h 25mRyanair
Deal found 13/9£50
Thu 27/1109:25LTN - OTP
Nonstop3h 20mWizz Air
Thu 27/1119:40OTP - LTN
Nonstop3h 35mWizz Air
Deal found 14/9£51
Tue 7/1008:40STN - OTP
Nonstop3h 10mRyanair
Tue 7/1021:35OTP - STN
Nonstop3h 25mRyanair
Deal found 14/9£51
Wed 1/1021:50LTN - OTP
Nonstop3h 05mWizz Air
Wed 22/1019:40OTP - LTN
Nonstop3h 30mWizz Air
Deal found 15/9£52
Thu 13/1117:00STN - OTP
Nonstop3h 25mRyanair
Sun 16/1111:45OTP - STN
Nonstop3h 25mRyanair
Deal found 15/9£52
Mon 6/1021:50LTN - OTP
Nonstop3h 05mWizz Air
Fri 10/1019:40OTP - LTN
Nonstop3h 30mWizz Air
Deal found 14/9£53
Fri 17/1020:05STN - OTP
Nonstop3h 10mRyanair
Fri 7/1106:00OTP - STN
Nonstop3h 25mRyanair
Deal found 13/9£53

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 16 September 2025.
Use the filters below to find and compare flights from London to Southeast Europe that are best for you.

Fly from

London

Fly to

Southeast Europe

Route

Depart

Return

Price

LondonBucharest

STN - OTP

STNOTP

London Stansted

Sat 8/11

15:10-20:35

Nonstop3h 25m

Bucharest Otopeni Intl

Tue 11/11

11:45-13:10

Nonstop3h 25m

£48

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Thu 30/10

17:50-23:10

Nonstop3h 20m

Bucharest Otopeni Intl

Thu 6/11

19:40-21:15

Nonstop3h 35m

£49

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Tue 14/10

09:10-14:25

Nonstop3h 15m

Bucharest Otopeni Intl

Fri 17/10

15:45-17:15

Nonstop3h 30m

£49

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Mon 3/11

14:10-19:30

Nonstop3h 20m

Bucharest Otopeni Intl

Tue 4/11

19:40-21:15

Nonstop3h 35m

£49

LondonBucharest

STN - OTP

STNOTP

London Stansted

Wed 26/11

06:20-11:45

Nonstop3h 25m

Bucharest Otopeni Intl

Sat 29/11

21:00-22:25

Nonstop3h 25m

£50

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Wed 1/10

21:50-02:55

Nonstop3h 05m

Bucharest Otopeni Intl

Wed 22/10

19:40-21:10

Nonstop3h 30m

£52

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Sat 4/10

14:10-19:25

Nonstop3h 15m

Bucharest Otopeni Intl

Thu 9/10

05:55-07:20

Nonstop3h 25m

£52

LondonBucharest

STN - OTP

STNOTP

London Stansted

Wed 22/10

11:05-16:15

Nonstop3h 10m

Bucharest Otopeni Intl

Fri 24/10

11:50-13:15

Nonstop3h 25m

£54

LondonBucharest

STN - OTP

STNOTP

London Stansted

Thu 2/10

20:05-01:15

Nonstop3h 10m

Bucharest Otopeni Intl

Fri 3/10

11:50-13:15

Nonstop3h 25m

£54

LondonBucharest

LTN - OTP

LTNOTP

London Luton

Mon 6/10

21:50-02:55

Nonstop3h 05m

Bucharest Otopeni Intl

Fri 10/10

12:00-13:30

Nonstop3h 30m

£54

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 60 results
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6

Best time to book a flight from London to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from London 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 to Southeast Europe

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

Currently, January is the cheapest month in which you can book a flight from London to Southeast Europe (average of £101). Flying from London to Southeast Europe in August is currently the most expensive (average of £329). 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 LON to YMH?

Find hourly flight availability from London 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 16 September 2025.

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

Weekly flight availability from London to Southeast Europe

Explore weekly flight availability from London 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 16 September 2025.

The most flights from LON to zzYMH are scheduled on a Tuesday (32 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (9 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 16 September 2025.
Read reviews from past customers who have flown with easyJet, Ryanair, andWizz Air from London to Southeast Europe. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
easyJet
6.9
Okay
1,820 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Ryanair
6.8
Okay
5,155 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Wizz Air
6.8
Okay
376 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
British Airways
6.7
Okay
7,361 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Wizz Air
6.0
Okay
151 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Boarding

6.7

Crew

7.6

Food

5.9

Overall

6.9

Comfort

6.7

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!

Related info for your journey

Find useful and relevant information for your journey from London 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 to Southeast Europe?

    Ryanair and Wizz Air can get you from London to Southeast Europe in just under 3h 20m. Your travel time will be generally consistent. The distance between London and Southeast Europe is about 1309 mi. Most flights are nonstop.

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

    £23 is the cheapest one-way deal found within the past few days, from Wizz Air. You may also be able to find cheap deals on Ryanair and easyJet, with prices starting from £25 and £38, respectively.

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

    Most travelers choose London Heathrow - Athens Eleftherios V., London Heathrow - Bucharest Otopeni Intl or London Gatwick - Athens Eleftherios V. when deciding on the best route from London to Southeast Europe.

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

    No one likes to see their flight delayed. When booking a flight from London to Southeast Europe consider choosing Air Canada (71%), Aegean Airlines (71%) or Japan Airlines (70%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from London to Southeast Europe is generally £388, our data shows the cheapest flight currently is £53. When looking at the most popular route, (London Heathrow - Athens Eleftherios V.), you can expect to pay £107 for that flight.

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

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

  • How can I find direct flights from London to Southeast Europe?

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

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

    Yes. Cheapflights offers flight deals from London 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 to Southeast Europe?

    Currently, January is the cheapest month in which you can book a flight from London to Southeast Europe (average of £101). Flying from London to Southeast Europe in August is currently the most expensive (average of £329). 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 London 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 London to Southeast Europe

Discover the top 10 airlines that operate flights from London 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£56Average£219FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Sky ExpressCheapest£57Average£205FlexibilityNo cancel feeOn-timeN/A
Search Sky Express flights
Jet2Cheapest£66Average£277FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
TAROMCheapest£66Average£127FlexibilityNo cancel feeOn-time86%
Search TAROM flights
TUI AirwaysCheapest£67Average£278FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
Corendon Airlines EuropeCheapest£83Average£242FlexibilityNo cancel feeOn-timeN/A
Search Corendon Airlines Europe flights
Croatia AirlinesCheapest£103Average£203FlexibilityNo cancel feeOn-time81%
Search Croatia Airlines flights
A.P.G.Cheapest£111Average£235FlexibilityNo cancel feeOn-timeN/A
Search A.P.G. flights
Air FranceCheapest£114Average£187FlexibilityNo cancel feeOn-time77%
Search Air France flights
EurowingsCheapest£117Average£272FlexibilityNo cancel feeOn-time87%
Search Eurowings 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 London to Southeast Europe?

When you search for this flight from London 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 London 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 London.

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

Need flexible booking options for your flight to Southeast Europe from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on London to Southeast Europe flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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