Cheap flights from Southeast Europe to London from £17

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southeast Europe to London departing on 21/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Wizz Air Logo
19:40 - 21:10OTP-LTN
3h 30mdirect
Wizz Air Logo
14:10 - 19:25LTN-OTP
3h 15mdirect
£41Wizz Air
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Wizz Air Logo
12:00 - 13:30OTP-LTN
3h 30mdirect
Wizz Air Logo
09:10 - 14:25LTN-OTP
3h 15mdirect
£41Wizz Air
Find Deal
Tue, 16 Sep - Thu, 18 Sep
Ryanair Logo
23:30 - 00:55OTP-STN
3h 25mdirect
Ryanair Logo
06:40 - 11:50STN-OTP
3h 10mdirect
£46Ryanair
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Wizz Air Logo
22:55 - 01:00ATH-LTN
4h 05mdirect
Wizz Air Logo
14:30 - 20:15LTN-ATH
3h 45mdirect
£47Wizz Air
Find Deal
Fri, 14 Nov - Sun, 23 Nov
Ryanair Logo
11:35 - 13:00OTP-STN
3h 25mdirect
Ryanair Logo
19:55 - 01:05STN-OTP
3h 10mdirect
£47Ryanair
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Wizz Air Logo
22:55 - 01:00ATH-LTN
4h 05mdirect
Wizz Air Logo
14:30 - 20:15LTN-ATH
3h 45mdirect
£49Wizz Air
Find Deal
Fri, 14 Nov - Wed, 19 Nov
British Airways Logo
21:00 - 22:30OTP-LHR
3h 30mdirect
British Airways Logo
18:10 - 23:25LHR-OTP
3h 15mdirect
£81British Airways
Find Deal
Thu, 4 Dec - Sat, 6 Dec
British Airways Logo
16:40 - 18:10OTP-LHR
3h 30mdirect
British Airways Logo
17:45 - 23:00LHR-OTP
3h 15mdirect
£83British Airways
Find Deal
Tue, 23 Dec - Tue, 30 Dec
easyJet Logo
20:50 - 22:45ATH-LGW
3h 55mdirect
easyJet Logo
13:30 - 19:10LGW-ATH
3h 40mdirect
£88easyJet
Find Deal
Thu, 9 Oct - Tue, 14 Oct
easyJet Logo
14:40 - 16:40ATH-LTN
4h 00mdirect
easyJet Logo
07:40 - 13:15LTN-ATH
3h 35mdirect
£90easyJet
Find Deal
Thu, 9 Oct - Tue, 14 Oct

British Airways flights from Southeast Europe to London

Our best British Airways deals on Southeast Europe to London flight tickets
British Airways
4 Dec
OTP21:00Bucharest Otopeni Intl
3h 30m
LHR22:30London Heathrow
6 Dec
LHR18:10London Heathrow
3h 15m
OTP23:25Bucharest Otopeni Intl
British Airways
23 Dec
OTP16:40Bucharest Otopeni Intl
3h 30m
LHR18:10London Heathrow
30 Dec
LHR17:45London Heathrow
3h 15m
OTP23:00Bucharest Otopeni Intl
British Airways
21 Nov
OTP20:20Bucharest Otopeni Intl
3h 30m
LHR21:50London Heathrow
24 Nov
LHR18:30London Heathrow
3h 15m
OTP23:45Bucharest Otopeni Intl

Aegean Airlines flights from Southeast Europe to London

Our best Aegean Airlines deals on Southeast Europe to London flight tickets
Aegean Airlines
16 Jan
ATH19:10Athens Eleftherios V.
4h 05m
LHR21:15London Heathrow
23 Jan
LHR16:35London Heathrow
3h 45m
ATH22:20Athens Eleftherios V.
Aegean Airlines
14 Aug
ATH16:00Athens Eleftherios V.
3h 55m
LHR17:55London Heathrow
20 Aug
LHR19:00London Heathrow
3h 35m
ATH00:35Athens Eleftherios V.
Aegean Airlines
11 Aug
ATH09:15Athens Eleftherios V.
4h 00m
LHR11:15London Heathrow
18 Aug
LHR19:00London Heathrow
3h 35m
ATH00:35Athens Eleftherios V.

momondo 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, momondo users made 279,928 searches. Data last updated 7 August 2025.
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

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Thu 18/9

19:40-21:10

Nonstop3h 30m

London Luton

Sun 21/9

14:10-19:25

Nonstop3h 15m

£41

BucharestLondon

OTP - LTN

OTPLTN

Bucharest Otopeni Intl

Tue 16/9

12:00-13:30

Nonstop3h 30m

London Luton

Thu 18/9

09:10-14:25

Nonstop3h 15m

£41

BucharestLondon

OTP - STN

OTPSTN

Bucharest Otopeni Intl

Thu 18/9

23:30-00:55

Nonstop3h 25m

London Stansted

Sun 21/9

06:40-11:50

Nonstop3h 10m

£46

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Fri 14/11

22:55-01:00

Nonstop4h 05m

London Luton

Sun 23/11

14:30-20:15

Nonstop3h 45m

£47

BucharestLondon

OTP - STN

OTPSTN

Bucharest Otopeni Intl

Thu 18/9

11:35-13:00

Nonstop3h 25m

London Stansted

Thu 25/9

19:55-01:05

Nonstop3h 10m

£47

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Fri 14/11

22:55-01:00

Nonstop4h 05m

London Luton

Wed 19/11

14:30-20:15

Nonstop3h 45m

£49

BucharestLondon

OTP - LHR

OTPLHR

Bucharest Otopeni Intl

Thu 4/12

21:00-22:30

Nonstop3h 30m

London Heathrow

Sat 6/12

18:10-23:25

Nonstop3h 15m

£81

BucharestLondon

OTP - LHR

OTPLHR

Bucharest Otopeni Intl

Tue 23/12

16:40-18:10

Nonstop3h 30m

London Heathrow

Tue 30/12

17:45-23:00

Nonstop3h 15m

£83

AthensLondon

ATH - LGW

ATHLGW

Athens Eleftherios V.

Thu 9/10

20:50-22:45

Nonstop3h 55m

London Gatwick

Tue 14/10

13:30-19:10

Nonstop3h 40m

£88

AthensLondon

ATH - LTN

ATHLTN

Athens Eleftherios V.

Thu 9/10

14:40-16:40

Nonstop4h 00m

London Luton

Tue 14/10

07:40-13:15

Nonstop3h 35m

£90

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Southeast Europe to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Southeast Europe is in March. Flight prices, which tend to average around £56, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Southeast Europe averaging around £65.

What is the cheapest day to depart on your flight to London?

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £103. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Southeast Europe to London for around £136.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £98. Flights in the afternoon are often more expensive, with an average ticket price of £121.

What is the cheapest Southeast Europe to London flight route?

Fly from Sofia to London Luton for the best Southeast Europe - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Southeast Europe when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £160 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Southeast Europe for as low as £101 on momondo.

What cabin class options are available on Southeast Europe to London flights?

There are 3 cabin classes available to choose from on Southeast Europe to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Southeast Europe to London flights?

No. A direct flight is the cheapest option for a flight between Southeast Europe to London.

Cheap Southeast Europe to London flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southeast Europe to London

Best price found

£17

Fastest flight time

2h 25m

Direct flights

Every day

Airports in London

4 airports
The best one-way flight to London from Southeast Europe in the past 72 hours is £17. The best return flight deal from Southeast Europe to London found on momondo in the last 72 hours is £41.
The fastest flight from Southeast Europe to London takes 2h 25m
Direct flights go from Southeast Europe to London every day.
There are 4 airports near London: London Luton (LTN), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)
  • When did momondo last update prices for flights from Southeast Europe to London?

    Prices for flights from Southeast Europe to London refresh daily.

  • How many operators does momondo search for flights from Southeast Europe to London?

  • How old do you have to be to fly from Southeast Europe to London?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Southeast Europe to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Southeast Europe to London?

Best airlines flying from Southeast Europe to London

Compare and see reviews for airlines that fly from Southeast Europe to London with momondo
Airline
Rating
Free Cancellation
Price
Wizz AirPriceFrom £23Free CancellationRating
6.0
144 reviews
Search Wizz Air flights
Wizz AirPriceFrom £29Free CancellationRating
6.8
1,056 reviews
Search Wizz Air flights
RyanairPriceFrom £33Free CancellationRating
6.2
109 reviews
Search Ryanair flights
Wizz AirPriceFrom £43Free CancellationRating
6.8
369 reviews
Search Wizz Air flights
easyJetPriceFrom £46Free CancellationRating
6.9
1,821 reviews
Search easyJet flights
RyanairPriceFrom £48Free CancellationRating
6.8
5,157 reviews
Search Ryanair flights
Sky ExpressPriceFrom £86Free CancellationRating
7.5
117 reviews
Search Sky Express flights
Bulgaria AirPriceFrom £90Free CancellationRating
8.0
58 reviews
Search Bulgaria Air flights
British AirwaysPriceFrom £92Free CancellationRating
6.6
7,245 reviews
Search British Airways flights
Air SerbiaPriceFrom £93Free CancellationRating
6.3
197 reviews
Search Air Serbia flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Maidstone
Southend-on-Sea
Canterbury
Gatwick
Ipswich
Ilford
Guildford
Colchester
Dartford
Hounslow
Worthing
Dover
Chelmsford
Hayes
Winchester
Bedford

Why use momondo?

Why should I use momondo to find a flight deal from Southeast Europe to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Southeast Europe to London for you.

Can I find flights from Southeast Europe to London with flexible booking policies on momondo?

Yes. All flights to London from Southeast Europe on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Southeast Europe to London?

Once you have performed a search for Southeast Europe to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Southeast Europe to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Southeast Europe to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Tue 12/8
Tue 19/8

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London