£20 Find Cheap Flights from Southeast Europe to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Southeast Europe to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southeast Europe to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Southeast Europe to London

Tue, 28 Apr - Tue, 5 May
Ryanair Logo
22:35 - 23:55
OTP
-
STN
3h 20mdirect
Ryanair Logo
06:05 - 11:15
STN
-
OTP
3h 10mdirect
£41Ryanair
Fri, 10 Apr - Sat, 18 Apr
Ryanair Logo
21:30 - 22:50
OTP
-
STN
3h 20mdirect
Ryanair Logo
17:25 - 22:35
STN
-
OTP
3h 10mdirect
£42Ryanair
Sat, 2 May - Sat, 9 May
Wizz Air Logo
05:55 - 07:15
OTP
-
LTN
3h 20mdirect
Wizz Air Logo
21:50 - 03:10
LTN
-
OTP
3h 20mdirect
£43Wizz Air
Fri, 10 Apr - Sat, 18 Apr
Ryanair Logo
21:30 - 22:50
OTP
-
STN
3h 20mdirect
Ryanair Logo
17:25 - 22:35
STN
-
OTP
3h 10mdirect
£43Ryanair
Sat, 2 May - Sat, 9 May
Wizz Air Logo
05:55 - 07:15
OTP
-
LTN
3h 20mdirect
Wizz Air Logo
21:50 - 03:10
LTN
-
OTP
3h 20mdirect
£44Wizz Air
Thu, 7 May - Wed, 13 May
Wizz Air Logo
06:00 - 07:15
SOF
-
LTN
3h 15mdirect
Wizz Air Logo
08:20 - 13:35
LTN
-
SOF
3h 15mdirect
£50Wizz Air
Thu, 7 May - Wed, 13 May
Wizz Air Logo
06:00 - 07:15
SOF
-
LTN
3h 15mdirect
Wizz Air Logo
21:20 - 02:35
LTN
-
SOF
3h 15mdirect
£53Wizz Air
Thu, 23 Apr - Tue, 28 Apr
Wizz Air Logo
13:00 - 15:15
ATH
-
LTN
4h 15mdirect
Wizz Air Logo
06:20 - 12:20
LTN
-
ATH
4h 00mdirect
£73Wizz Air
Fri, 24 Apr - Sun, 26 Apr
easyJet Logo
00:45 - 02:30
ATH
-
LGW
3h 45mdirect
easyJet Logo
05:45 - 11:25
LGW
-
ATH
3h 40mdirect
£80easyJet
Wed, 1 Apr - Tue, 21 Apr
easyJet Logo
11:40 - 13:40
ATH
-
LGW
4h 00mdirect
easyJet Logo
05:55 - 11:35
LGW
-
ATH
3h 40mdirect
£83easyJet
Useful Info

Good to know - Cheap tickets from Southeast Europe to London

Low seasonJanuary
Cheapest flight£20
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly (27% more expensive on average)
Flight from Bucharest to London Stansted Airport

Flights from Southeast Europe to London: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Southeast Europe to London 
ScottFlew with Ryanair
SOF
-
STN
Jan 2026
Take some euros not everything is pay be card
Verified travelerFlew with British Airways
ATH
-
LHR
Jun 2025
Be sure to have at least 2 hour layover when flying through London. Also, we have TSA Global and when we checked our luggage, asked to confirm it was on our flight. We were told it was. It was not
JeremiahFlew with British Airways
OTP
-
LHR
Dec 2024
Economy is a little tight but the short flight isn’t bad just have headphone and 1-2 movies downloaded to watch
MatthewFlew with Ryanair
ATH
-
STN
Feb 2025
Bring food, drink, entertainment and prepare to remove clothes as temperature was super hot and air system barely works.
Verified travelerFlew with Ryanair
ZAG
-
STN
Feb 2024
If you’re flying abroad from Zagreb, it’s worth using the airport lounge for a few hours before the flight. Food, snacks, drinks, and a quiet place to unwind. For less than 20 quid per person.
Verified travelerFlew with British Airways
ATH
-
LHR
Dec 2023
Watch out for transit times in Heathrow. Always put your liquids in the little stupid baggies.

FAQs for booking flights from Southeast Europe to London

  • How does KAYAK find such low prices on flights from Southeast Europe to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Southeast Europe to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southeast Europe to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Southeast Europe is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Southeast Europe to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Southeast Europe with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Europe to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Southeast Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Southeast Europe to London

 
Need help choosing which airline to fly with from Southeast Europe to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
RyanairOverall score based on 5297 reviews
6.7Boarding
6.5Comfort
6.0Food
7.5Crew
5.6Entertainment
Airline reviews

Food and entertainment were not available, so my rating on those items isn't actually correct. There should be a "Not relevant" or "Didn't use it" option.

10.0 ExcellentAnonymous, Mar 2026
HHN - STN
Read more Ryanair reviews

Food and entertainment were not available, so my rating on those items isn't actually correct. There should be a "Not relevant" or "Didn't use it" option.

Delay in boarding with no explanation why. Stood for about 40 mins waiting to board

Rubbish moved my seat don’t know why same seat configuration cost me extra so me and my wife could sit together now I know why no paper ticket so they can do this

Slow and delayed boarding, including standing outside 15m in -3 temperatures, Late take-off approx 45 mins Very slow bag delivery approx 45 min - no explanation

The flight boarded nice and early and this meant there was no sudden rush at the gate. The only down side was the cabin was very cold 🥶

Flying from Newquay was an absolute dream! Would 100% recommend flights from there!

It would have been better if I was not ill so I didn't go and I didn't come back and I could not transfer my tickets to a later date as Ryanair stop flying from Manchester at the end of October till next year

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

From boarding to disembarking, the whole operation was very efficient.

Passengers next to me insisted I change seats so they could sit together. I had to frequently move so that when the sear belt sign was on I was in my proper seat! I was returning from helping my mum with my dad's things after his sudden death and didn't feel like arguing with the other passengers.

It was good except they could offer free water and tea/coffe

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The chairs don't recline and the food for sale didn't looks as appetising as its prices would suggest. But that's a low coster for you. Orher than that, the flight was delightfully uneventful.

The flight never took off because two naughty kids, Donnie and Bibi, did a silly thing. Started a war.

Even when you get the priority pass the experience is not what it meant to be priority

I wasn't able to check in before because I had no internet on a long ride over and I had to pay Euro 50 all together I paid an extra Euro 200 on top of the original flight because I had suitcase and carry on and I wasn't able to check in online before And the end it ends up being more expensive flight than a regular carrier You don't save money and the plane is less comfortable

Surprisingly, a very good flight. No wonder that Wizz flights are always full.

Boarding from Teminal C, which requires long walking to it from main terminal A.

delayed flight, bag was delivered earlier than I landed, no even water was offered during the flight...

The 50 € boarding fees per ticket are completely unjustified. I lost all my savings because I arrived at the counter barely 5 minutes late (2hrs and 55mine before departure). This feels like an unnecessary penalty. It's especially disappointing considering the initial flight was canceled by WizzAir. I expect a partial refund of the 196 € paid for the boarding.

Boarding kept us waiting for ~15 minutes in the sleeve. Other than that, excellent for a low cost carrier.

Low cost carrier, you get what you pay for. Cardboard-quality seat, no recline, minimum pitch, bus-to-board service (no jetbridge), and overworked/underpaid flight attendants. But, they got the job done on-time with no major catastrophes.

Low-cost airline. Airbus A-320 and 321 series are not comfortable on flights taking more than 3 hours. Seats are uncomfortable. Very limited foot space, especially when having a bag under the seat in front of you.

Typical wizzair flight, nothing special , but as there were flight in the evening we got sandwiches with 50% discount. Terminal wizzair is using is awful. Separate from normal airport, no duty free and only one cafe. Also was late for more than 2 hours but we didn’t got any food or water vouchers.

Timely departures and arrivals. The seat was slightly forward leaning which made it uncomfortable

Flight was delayed by two hours and we then sat on the runway for another 40 minutes and circled Gatwick twice making it 3 hours later landing this is very poor compared to all the other operators I’ve flown with the outbound flight was an hour late

There were not enough staff and signage to direct people to Wizz Priority lanes for check-in and boarding. It didn't feel like we were Wizz Priority holders.

Had to pay £45 to check in at the airport because I didn't check-in online at least 3 hours prior... and it wasn't mentioned on the booking / App (online check-in is only marked as "included service"). Upon landing, captain failed to land the first attempt and had to take off again for an re-attempt. Overall mid experience, would definitely pay a bit more at first to avoid this again.

Two of our boarding details were missing and they wanted to charge us 84 pounds for that, although it was totally their fault

They boarded us despite knowing we wouldn’t be taking off for another hour and boarded us into a plane who’s air conditioning was not working properly. So we were sat in a hot plane for an hour with no access to the bathroom getting hotter and hotter. A little bit of communication between the teams would have avoided this.

I planned to be working during the flight but next to and in front of me there was a family (basically all around me) who had screaming kids all the way long and they were rude and the kid was kicking me as well and constantly wanted to grab my phone etc. I was so pissed, I didn't think they will travel priority so I didn't think they'll sit next to me but they did. I asked the crew if there is a chance for me to go to another seat far away from there...And they were so kind, immediately after take off they showed a seat for me that is far away from these people. I'm so grateful for this!!! I hate that I cannot figure out these things in advance. I WOULD BE HAPPY TO PAY MORE IN ADVANCE TO MAKE SURE THERE ARE NO FAMILIES W KIDS AROUND ME!!!!

Brand new aircraft Airbus 321neo, good seats although no recline (so no arguments with other passengers). Orderly boarding using front and rear aircraft doors for efficiency. Departed on time and artived 25min early. During check in, ground staff are very strict about permitted baggage and carry-on weight and size - you're only allowed what you paid for. Onboard food and beverage prices are a bit high but similar to airport coffee shops.

Far easier than I expected it to be. Checked in online & had our boarding passes emailed through. Straight through security & boarded on time. No issues.

Shocking. Faults with the plane in both directions which caused delays with no compensation

Very efficient boarding. Plane lready for take ooff10 minutes before time.

Great crew. Seats do not recline :( but it is budget so i should have known. Otherwise comfy leather chair. Slight slim chair but again budget so expected. No entertainment do makes journey boring. Recommend packing plenty of snacks and games or download plenty of films and music in your device. Staff excellent. Clean flight. On time.

Both of my flights had issues with their time slot with air traffic control, so they left over an hour late and the flight back to London was delayed by over an hour. Please provide more clarity about baggage requirements on booking sites, your website and within the app. I had to pay for extra bags at the airport when departing London, because they didn’t specify that your carry on bag can only be a backpack and not a trolley, my trolley bag fit the size requirements of the backpack but still I was made to pay

The crew at Check-in was very helpful. It’s was appreciate.

It’s a budget airline. You get what you pay for. They insisted on getting us out of the gate and into our slot on time. They got us to the destination safely. Aircraft was clean and well maintained. What more could we want

Half an hour delay. Squeezed into a small Departure Lounge with very few seats. Noisy flight with screaming unruly kids. Loud IPads and Phones. Heaven!

Were delayed in the airport for 5 hours with no explanation. Flight kept getting delayed by an hour at a time and wizz air staff were no where to be found

The flight was delayed 5 hours and I'm and invalid,I wan a refund for this

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Everything you need to know for your flight to London

Cabin class types available on flights to Southeast Europe

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.