£42 Find Cheap Flights from London Heathrow Airport to Southeast Europe

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Southeast Europe departing on 5/7. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Europe

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Europe.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Europe.
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Cheap Flights from Heathrow to Southeast Europe

Cheapest return prices found by our users on KAYAK in the last 72 hours
Athens
Athens1 stop£121
Tirana
Tiranadirect£127
Corfu
Corfudirect£144
Heraklion
Heraklion1 stop£141
Sofia
Sofia1 stop£127
Split
Splitdirect£122
Rhodes
Rhodes1 stop£173
Chania
Chania1 stop£172
Belgrade
Belgrade1 stop£166
Dubrovnik
Dubrovnik1 stop£123
Thessaloniki
Thessaloniki1 stop£152
Zakynthos
Zakynthos1 stop£179
Thera
Thera1 stop£165
Tivat
Tivat1 stop£179
Ljubljana
Ljubljana1 stop£159
Sarajevo
Sarajevo1 stop£123
Argostoli
Argostoli1 stop£183
Podgorica
Podgorica1 stop£155
Mykonos
Mykonos1 stop£162
Athens
Athens1 stop£121
Tirana
Tiranadirect£127
Corfu
Corfudirect£144
Heraklion
Heraklion1 stop£141
Sofia
Sofia1 stop£127
Split
Splitdirect£122
Rhodes
Rhodes1 stop£173
Chania
Chania1 stop£172
Belgrade
Belgrade1 stop£166
Dubrovnik
Dubrovnik1 stop£123
Thessaloniki
Thessaloniki1 stop£152
Zakynthos
Zakynthos1 stop£179
Thera
Thera1 stop£165
Tivat
Tivat1 stop£179
Ljubljana
Ljubljana1 stop£159
Sarajevo
Sarajevo1 stop£123
Argostoli
Argostoli1 stop£183
Podgorica
Podgorica1 stop£155
Mykonos
Mykonos1 stop£162

Book Cheap Heathrow to Southeast Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Southeast Europe 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 Heathrow to Southeast Europe

Wed, 11 Nov - Sun, 15 Nov
British Airways Logo
09:30 - 14:45
LHR
-
OTP
3h 15mdirect
British Airways Logo
16:10 - 17:50
OTP
-
LHR
3h 40mdirect
£115British Airways
Mon, 9 Nov - Fri, 13 Nov
British Airways Logo
18:30 - 23:45
LHR
-
OTP
3h 15mdirect
British Airways Logo
16:45 - 18:15
OTP
-
LHR
3h 30mdirect
£116British Airways
Sun, 11 Oct - Thu, 15 Oct
LOT Logo
06:30 - 18:25
LHR
-
DBV
10h 55m
1 stop
LOT Logo
19:15 - 22:00
DBV
-
LHR
27h 45m
1 stop
£148LOT
Sat, 26 Sep - Thu, 1 Oct
LOT Logo
06:30 - 18:25
LHR
-
DBV
10h 55m
1 stop
LOT Logo
19:15 - 22:00
DBV
-
LHR
27h 45m
1 stop
£149LOT
Thu, 12 Nov - Sun, 15 Nov
Aegean Airlines Logo
19:00 - 00:35
LHR
-
ATH
3h 35mdirect
Aegean Airlines Logo
16:00 - 17:55
ATH
-
LHR
3h 55mdirect
£153Aegean Airlines
Mon, 2 Nov - Sat, 7 Nov
Aegean Airlines Logo
19:00 - 00:35
LHR
-
ATH
3h 35mdirect
Aegean Airlines Logo
19:10 - 21:15
ATH
-
LHR
4h 05mdirect
£154Aegean Airlines
Tue, 30 Jun - Tue, 7 Jul
Lufthansa Logo
09:00 - 19:20
LHR
-
LJU
9h 20m
1 stop
Lufthansa Logo
09:35 - 15:40
LJU
-
LHR
7h 05m
1 stop
£167Lufthansa
Wed, 1 Jul - Wed, 8 Jul
Austrian Airlines Logo
06:00 - 08:55
LHR
-
CFU
24h 55m
1 stop
Austrian Airlines Logo
10:50 - 21:40
CFU
-
LHR
12h 50m
1 stop
£167Austrian Airlines
Wed, 2 Sep - Tue, 8 Sep
Lufthansa Logo
06:55 - 12:35
LHR
-
LJU
4h 40m
1 stop
Lufthansa Logo
09:40 - 15:40
LJU
-
LHR
7h 00m
1 stop
£168Lufthansa
Mon, 14 Sep - Tue, 22 Sep
Austrian Airlines Logo
06:00 - 16:15
LHR
-
CHQ
8h 15m
1 stop
Austrian Airlines Logo
19:25 - 21:40
CHQ
-
LHR
28h 15m
1 stop
£176Austrian Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Southeast Europe flights

Get data-powered insights and trends into flights from Heathrow to Southeast Europe to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Southeast Europe flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Europe from London Heathrow Airport found in the last 72 hours was to Rhodes, at £106 return. The most popular route is from London Heathrow Airport (LHR) to Athens (ATH), and the cheapest round-trip airline ticket found on this route in the last 5 days was £189.

What is the cheapest time of day to fly to Southeast Europe?

The average price for all round-trip flights from London Heathrow Airport to Southeast Europe depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Southeast Europe is generally in the afternoon, when retur flights cost £260 on average. Morning departures are around 23% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Europe is generally in the evening, which is peak travel time and where the average cost of a ticket is £368.

Can I save money by flying with a stopover from London Heathrow Airport to Southeast Europe?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £465, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to Southeast Europe?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Southeast Europe, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Southeast Europe is April, when tickets cost £180 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of return tickets is £296 and £286 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Southeast Europe?

The average price of all round-trip flights from London Heathrow Airport to Southeast Europe clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to Southeast Europe, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Southeast Europe back to London Heathrow Airport, the best deals are generally found on Friday, with Monday being the most expensive.

How far in advance should I book a flight from London Heathrow Airport to Southeast Europe?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Southeast Europe, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to Southeast Europe, you should book around 2 weeks before departure, which saves you about 15% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Southeast Europe

Low seasonJanuary
Cheapest flight£42
Best time to beat the crowds (34% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from London Heathrow Airport to Dubrovnik

FAQs - booking Southeast Europe flights

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

    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 London Heathrow Airport to Southeast Europe.

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

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

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

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

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

    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 from London Heathrow Airport to 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 Heathrow to Southeast Europe

 
See real verified KAYAK customer reviews for airlines flying from London to Southeast Europe. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Southeast Europe? 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.
8.1
Aegean AirlinesOverall score based on 877 reviews
8.6Crew
7.4Food
7.9Comfort
7.8Boarding
6.9Entertainment
Airline reviews

Highlights were the food and wonderful staff. Airplanes were exceptionally clean.

10.0 ExcellentAnonymous, Jun 2026
SKG - MUC
Read more Aegean Airlines reviews

Highlights were the food and wonderful staff. Airplanes were exceptionally clean.

Aegan Airlines compensates for its outdated business-class seats with excellent food and onboard crew service. Launge was also excellent.

For a business class, it barely met the standards of a basic economy on most carriers. The seat would barely recline; no pillow or blanket unless you ask a crew member; no leg rest (at least in the 1st row). The crew was friendly and attentive, except for one male crew member who was very inconsiderate toward many business passengers who were already sleeping or trying to sleep, slamming the doors of the kitchen compartments. He did so twice till another passenger complained to him. Overall, business class is an economy experience except for the food.

On every Aegean flight it seems, they ask people to check in carry on luggage. That seems to happen less often with other airlines for some reason. The food is very basic for a full service airline. We do not need a meal with trays, but something of higher quality (even just higher quality pies) would be better. The cabin crew was very nice and professional, though.

Seats that recline. Ice for soft drinks. No charge for did drinks. Wifi.

Internet not working during the flight - what a big miss!

Aegean Airlines was great! Great spirit, very helpful and efficient. Overall Aegean Airlines was a great experience.

The flight was excellent but the onboard WiFi wasn’t working.

The seat was hard as a rock. Business class seats were coach seats with no one in the middle. Service and food were excellent.

There was no enterteinment onboard. Food was good, and service too.

The preboarding and the gate organizing management was poor, unorganized and mismanaged. While standing in the business line I kept getting ignored and the personnel kept checking in others, right in front of me until I finally spoke up and pointed out their clear signs of ignoring me while patiently waiting to be checked in. Once checked in the gate the personnel kept chit-chatting and not managing which group is to board, being totally nonchalant, unorganized and behaving amateur-like . Very unprofessional and unlike the quality the Austrian Airlines brand otherwise provides. The crew on the plane are always fantastic and the best. What a shame the crew on the ground was so mediocre.

The layover period at Frankfurt of one hour and forty minutes was not enough time to clear the two-hour line at passport control: we missed the flight to San Francisco. Condor did a good job rebooking us that same day, but our bags ended up in Los Angeles.

This is truly the worst travel experience of my life. The UK ETA program had a technical failure, and I was stuck in limbo for 24 hours, unable to board my flight and unable to navigate anything in my itinerary. I had to rebook an entirely new flight and I’m now out doubled the money. Unconscionable.

Flight delayed with no explanation. Boarding was confused (proceed to plane, go back to waiting area).

It was a great experience. The aircraft is a bit dated but other than that it was great.

Last few years I didn't not have great experience with United Airlines.

The airport gate in Lyon was an insult to human dignity…. Shame kn the French authorities

Booked economy. Seat felt like it was a bit more roomy than my last trans Atlantic flights. I had a nice person sitting next to me. Everything was as good as it could be considering you are 35,000 feet up in the air and in a metal container. Beers, wine, food were all readily available. Plenty of movies and shows to watch. Friendly flight staff

Short flight. Bare bones and kinda seeming like an older plane. But got me there on time and that's what counts. Perfectly fine flight all the way from start to finish.

We were delayed three hours from Montenegro to Vienna on our outbound flight and then rebooked an extra leg on our trip to the US. Our bags, which Austrian made us check in in Montenegro even though the flight was barely half full, didn't find us for ten days. Then, when we asked for compensation for the delay we were given the runaround that the flight originated outside of the EU. Next time we fly Turkish Air.

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Late flight Delays Poor service Poor staff Worst airline ever

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

Both flights were delayed over 1 hour. And I had to pay for seats, even though my reservation supposedly included free seat selection.

The plane was late (as was my flight out from Birmingham the day before)

We had almost a 6 hr delay, primarily due to weather, the e problem was that they communicated this delay and its length very poorly. The boarding was chaotic - even though they had hours to figure it out! The plane was an old 747 whose touch screens barely worked and there was a faulty USB port under my seat rest (something that wasn't labeled as being there) They organized my delayed luggage well. And I could get updates on the Lufthansa website. My shirt connecting flight charged for everything except water. Coffee was over 3€

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

The plane was a long way from departure lounge. The plane looked tired but got us there.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Poor service, antiquated plane with 2-3-2. B-class config upstairs. Tight and not comfortable—not what I expected for paying B-class! AND my bag didn’t make the transfer, bag will be delivered the day after it lands!

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Boarding and flight itself was smooth and temperature during the flight was perfect. It was just overall vibe for long distance flight, felt cheap ( comparing to KLM or TUI that I used recently). Entertainment out of date movies with poor picture quality, no games, flight map wasn't working

Basic, 737 Boeing, business class is just an economy class seat with blocked middle seat (European standard).

Entertainment is nonexistent. Food might have been good, however due to language barriers I didn’t get to have any food. Flat bed seats and layout was excellent. Crew efficient and straightforward, but lacking any western style approach. Not that I’d expect anything else, but one could have hoped.

Unorganized, late and they lost my bag for several days.

Flight took very long to even get checked in for, everything was late and written out by hand. My luggage was lost for several days and it was the most unorganized flight experience of my life.

Delaying more than 5 hours from Belgrade to Tirana Information very rude to questions

It's the shortest trip one could get from BEG anywhere, so it was fine.

I paid for luggage when I bought the ticket but I could not board until I paid for luggage again. The fault lays at the feet of eDreams, the company that booked our flight. Sorry, Air Serbia, but it did affect the boarding process.

They had lost my ticket and despite showing them the confirmation email with the itinerary and receipt of payment for the flight they could not put me on that flight and rescheduled departure postponing it by a whole week

Kraljevo is very convenient airport. It's brand new, small.and efficient. Great job!

Everything you need to know for your flight to Southeast Europe

Information on your arrival and departure airports