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Cheap flights from Southeast Europe to London from £20

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 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — LON
7 Apr — 14 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southeast Europe to London

Enter your travel dates to find the best prices.

Cheapest flights from Southeast Europe to London
Explore the most affordable flight options available from Southeast Europe to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 March 2026.

Wed 1/405:45
OTP
-
STN
Nonstop3h 20m
Ryanair
Sun 12/406:45
STN
-
OTP
Nonstop3h 10m
Ryanair
Deal found 3/3£40
Thu 12/322:50
OTP
-
STN
Nonstop3h 25m
Ryanair
Wed 18/312:25
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 5/3£40
Fri 20/322:40
OTP
-
STN
Nonstop3h 25m
Ryanair
Sun 22/318:40
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 3/3£41
Thu 2/415:40
OTP
-
LTN
Nonstop3h 30m
Wizz Air
Wed 22/417:50
LTN
-
OTP
Nonstop3h 20m
Wizz Air
Deal found 5/3£41
Thu 30/421:55
OTP
-
STN
Nonstop3h 20m
Ryanair
Wed 6/515:35
STN
-
OTP
Nonstop3h 10m
Ryanair
Deal found 5/3£42
Thu 23/405:55
OTP
-
LTN
Nonstop3h 20m
Wizz Air
Wed 29/421:50
LTN
-
OTP
Nonstop3h 20m
Wizz Air
Deal found 6/3£42
Thu 5/315:15
OTP
-
STN
Nonstop3h 25m
Ryanair
Wed 11/306:20
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 3/3£43
Wed 1/411:55
OTP
-
LTN
Nonstop3h 30m
Wizz Air
Wed 15/421:50
LTN
-
OTP
Nonstop3h 20m
Wizz Air
Deal found 3/3£43
Thu 19/315:15
OTP
-
STN
Nonstop3h 25m
Ryanair
Sun 22/305:55
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 6/3£44
Thu 23/405:55
OTP
-
LTN
Nonstop3h 20m
Wizz Air
Thu 23/421:50
LTN
-
OTP
Nonstop3h 20m
Wizz Air
Deal found 6/3£44
Wed 11/321:05
OTP
-
STN
Nonstop3h 25m
Ryanair
Wed 18/306:20
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 4/3£45
Thu 12/322:50
OTP
-
STN
Nonstop3h 25m
Ryanair
Sun 15/305:55
STN
-
OTP
Nonstop3h 25m
Ryanair
Deal found 3/3£45

Find flight deals from Southeast Europe to London

Keep the following information in mind while searching for Southeast Europe to London flight deals. Data was last updated 8 March 2026.

Round-trip from

£40

One-way from

£20

Popular in

July

Cheapest in

February

Average price

£77
Ryanair
  • Ryanair
  • 1/4-12/4
  • Nonstop
  • 6h 30m total
  • Southeast Europe to London
Search Deals
Ryanair
  • Ryanair
  • 20/3
  • Nonstop
  • 3h 25m total
  • Southeast Europe to London
Search Deals
Highest demand for flights based on searches. 32% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southeast Europe to London 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 8 March 2026.
Use the filters below to find and compare flights from Southeast Europe to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Thu 23/4

13:00-15:00

Nonstop4h 00m

London Luton

Sun 26/4

06:20-12:20

Nonstop4h 00m

£63

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Fri 20/3

05:50-07:25

Nonstop3h 35m

London Luton

Sun 22/3

21:55-03:15

Nonstop3h 20m

£66

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Fri 20/3

05:50-07:25

Nonstop3h 35m

London Luton

Tue 24/3

17:50-23:10

Nonstop3h 20m

£66

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Sun 5/4

12:35-15:00

Nonstop4h 25m

London Luton

Sun 12/4

06:20-12:15

Nonstop3h 55m

£69
Fastest return journey

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Sat 23/5

19:40-21:05

Nonstop3h 25m

London Luton

Thu 28/5

21:50-03:10

Nonstop3h 20m

£69

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Tue 2/6

19:40-21:05

Nonstop3h 25m

London Luton

Fri 5/6

21:50-03:10

Nonstop3h 20m

£89

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Sat 4/4

19:40-21:05

Nonstop3h 25m

London Luton

Sat 11/4

17:50-23:10

Nonstop3h 20m

£96

AthensLondon

ATH - LGW

ATHLGW

Athens Eleftherios V.

Fri 1/5

21:00-22:55

Nonstop3h 55m

London Gatwick

Tue 5/5

05:55-11:35

Nonstop3h 40m

£98

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Sat 28/3

07:10-08:45

Nonstop3h 35m

London Luton

Mon 6/4

21:50-03:10

Nonstop3h 20m

£98

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Fri 20/3

22:55-01:00

Nonstop4h 05m

London Luton

Mon 23/3

08:05-07:50

1 stop21h 45m

£100

Flights are sorted by cheapest return flights first.

Deals found on 6/3

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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6

Best time to book a flight from Southeast Europe to London

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

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

Currently, July is the cheapest month in which you can book a flight from Southeast Europe to London (average of £22). Flying from Southeast Europe to London in June is currently the most expensive (average of £45). 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 YMH to LON?

Find hourly flight availability from Southeast Europe to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 March 2026.

It’s typically best to fly out from Southeast Europe to London in the evening. Doing so could potentially save you 43% on the flight price compared to flying at midday, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Southeast Europe to London. Price data was last updated on 21 February 2026.

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

Weekly flight availability from Southeast Europe to London

Explore weekly flight availability from Southeast Europe to London. 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 8 March 2026.

The most flights from zzYMH to LON are scheduled on a Saturday (20 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 8 March 2026.
See what other customers who have flown with Ryanair, easyJet, andWizz Air from Southeast Europe to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Ryanair
6.9
Okay
5,288 reviews
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
easyJet
6.9
Okay
1,882 reviews
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Wizz Air
6.8
Okay
411 reviews
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Wizz Air
6.8
Okay
1,085 reviews
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???
Wizz Air
6.2
Okay
163 reviews
Ryanair
6.9
Okay
5,288 reviews
Check prices

Crew

7.5

Entertainment

5.6

Overall

6.9

Boarding

6.7

Food

6.0

Comfort

6.5

Reviews

1 / 20
8.0
Excellent

Nadine,Feb 2026

PSA - STN

The boarding process couldn't be more unpleasant really. We queue for half hour once we have arrived trhough the gate. They let us through the gates even though they have not opened the doors of the plane as yet. i feel like cattle. This time i decided not to bring any cabin luggage so that I could go through the gate last. Then I waited in the sun whilst everyone found their seats. At least 20 minutes. It was like torture. If i had a cabin bag - i would never have been able to put it above me, near my seat (which is always at the front) because the overhead cabin space would have been full. I need to work out a better strategy for next time or beg RyanAir and the cheaper airlines to work out a better boarding process. What do I do???

Related info for your journey

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

    Departing from Southeast Europe to London will take you 3h 35m. The distance between Southeast Europe and London is about 1309 mi. All flights are typically direct.

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

    £13 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Ryanair and Wizz Air, with prices starting from £13 and £14, respectively.

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

    When deciding which route to take from Southeast Europe to London consider Athens Eleftherios V. - London Gatwick, Athens Eleftherios V. - London Heathrow or Athens Eleftherios V. - London Stansted as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Southeast Europe to London on time: Japan Airlines (94%), Air Canada (88%), Aegean Airlines (86%).

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

    On average you can expect to pay £188 for a flight from Southeast Europe to London. The cheapest flight overall is £74 while the most popular route, (Athens Eleftherios V. - London Gatwick) is currently priced at £89.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Southeast Europe to London (average of £22). Flying from Southeast Europe to London in June is currently the most expensive (average of £45). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Wembley
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Chelmsford
Ipswich
Bedford
Romford
Southend-on-Sea

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Alternative routes for Southeast Europe to London

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Gatwick flights
Charles de Gaulle to Luton flights
Charles de Gaulle to Edinburgh flights
Frankfurt to Luton flights
Charles de Gaulle to London City flights
Charles de Gaulle to Heathrow flights
Duesseldorf Intl to Stansted flights
Madrid to Heathrow flights
Madrid to Stansted flights
Madrid to Gatwick flights
Orly to Heathrow flights
Madrid to Luton flights
Duesseldorf Intl to Luton flights
Madrid to London City flights
Charles de Gaulle to Southend flights
Amsterdam to Luton flights
Duesseldorf Intl to Heathrow flights
Vienna to Heathrow flights
Vienna to Gatwick flights
Frankfurt to Heathrow flights
Frederic Chopin to Luton flights
Duesseldorf Intl to London City flights
Madrid to Southend flights
Dublin to Gatwick flights
Frankfurt to London City flights
Amsterdam to Gatwick flights
Amsterdam to Stansted flights
Zurich to Gatwick flights
Beauvais-Tille to Luton flights
Frankfurt to Southend flights
Beauvais-Tille to Stansted flights
Dublin to Stansted flights
Nantes to Gatwick flights
Bruxelles-National to Gatwick flights
Dublin to Luton flights
Vienna to Stansted flights
Bruxelles-National to Stansted flights
Amsterdam to London City flights
Bruxelles-National to Luton flights
Lyon to Gatwick flights
Orly to Gatwick flights
Marseille to Gatwick flights
Frankfurt to Stansted flights
Frederic Chopin to London City flights
Madrid to Edinburgh flights
Vienna to London City flights
Leonardo da Vinci/Fiumicino to Gatwick flights
Frankfurt-Hahn to Luton flights
Gatwick to Edinburgh flights
Amsterdam to Southend flights

Top 10 airlines flying from Southeast Europe to London

Discover the top 10 airlines that operate flights from Southeast Europe to London. 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 8 March 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£28Average£130FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£29Average£103FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
RyanairCheapest£30Average£119FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£36Average£103FlexibilityNo cancel feeOn-time83%
Search Wizz Air flights
Wizz AirCheapest£41Average£107FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Air SerbiaCheapest£42Average£181FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
easyJetCheapest£46Average£161FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aegean AirlinesCheapest£86Average£211FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
British AirwaysCheapest£89Average£213FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Bulgaria AirCheapest£96Average£194FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air 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 Southeast Europe to London?

Deals for Southeast Europe to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to London from Southeast Europe by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Of course! You can now track prices for flights from Southeast Europe to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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