£56 Find Cheap Flights from London Heathrow Airport to Southeast Europe – Compare and Save

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 30/9. 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.
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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£145
Tirana
Tiranadirect£120
Corfu
Corfu1 stop£142
Heraklion
Heraklion1 stop£154
Split
Splitdirect£118
Sofia
Sofiadirect£108
Rhodes
Rhodes1 stop£149
Chania
Chania1 stop£152
Dubrovnik
Dubrovnik1 stop£150
Belgrade
Belgrade1 stop£158
Thessaloniki
Thessaloniki1 stop£150
Zakynthos
Zakynthos1 stop£165
Thera
Thera1 stop£149
Tivat
Tivat1 stop£191
Sarajevo
Sarajevo1 stop£154
Ljubljana
Ljubljana1 stop£173
Argostoli
Argostoli1 stop£171
Podgorica
Podgorica1 stop£134
Kos
Kos1 stop£152
Athens
Athens1 stop£145
Tirana
Tiranadirect£120
Corfu
Corfu1 stop£142
Heraklion
Heraklion1 stop£154
Split
Splitdirect£118
Sofia
Sofiadirect£108
Rhodes
Rhodes1 stop£149
Chania
Chania1 stop£152
Dubrovnik
Dubrovnik1 stop£150
Belgrade
Belgrade1 stop£158
Thessaloniki
Thessaloniki1 stop£150
Zakynthos
Zakynthos1 stop£165
Thera
Thera1 stop£149
Tivat
Tivat1 stop£191
Sarajevo
Sarajevo1 stop£154
Ljubljana
Ljubljana1 stop£173
Argostoli
Argostoli1 stop£171
Podgorica
Podgorica1 stop£134
Kos
Kos1 stop£152

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

Tue, 13 Oct - Tue, 27 Oct
British Airways Logo
20:05 - 01:20
LHR
-
OTP
3h 15mdirect
British Airways Logo
16:40 - 18:10
OTP
-
LHR
3h 30mdirect
£107British Airways
Wed, 11 Nov - Mon, 23 Nov
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
£108British Airways
Sat, 28 Nov - Sat, 5 Dec
Croatia Airlines Logo
16:50 - 20:20
LHR
-
SPU
2h 30mdirect
Croatia Airlines Logo
14:25 - 16:05
SPU
-
LHR
2h 40mdirect
£108Croatia Airlines
Sat, 31 Oct - Sat, 7 Nov
Croatia Airlines Logo
16:50 - 20:20
LHR
-
SPU
2h 30mdirect
Croatia Airlines Logo
14:25 - 16:05
SPU
-
LHR
2h 40mdirect
£109Croatia Airlines
Wed, 21 Oct - Tue, 3 Nov
LOT Logo
10:20 - 13:50
LHR
-
SOF
25h 30m
1 stop
LOT Logo
18:35 - 22:00
SOF
-
LHR
5h 25m
1 stop
£117LOT
Tue, 13 Oct - Wed, 21 Oct
LOT Logo
10:20 - 13:55
LHR
-
SOF
25h 35m
1 stop
LOT Logo
18:45 - 22:00
SOF
-
LHR
5h 15m
1 stop
£117LOT
Tue, 22 Sep - Tue, 29 Sep
Multiple Airlines Logo
09:55 - 00:55
LHR
-
TIA
14h 00m
1 stop
Multiple Airlines Logo
07:00 - 14:45
TIA
-
LHR
8h 45m
2 stops
£123Multiple Airlines
Thu, 17 Sep - Tue, 22 Sep
Multiple Airlines Logo
09:55 - 17:30
LHR
-
TIA
6h 35m
1 stop
Multiple Airlines Logo
07:00 - 14:45
TIA
-
LHR
8h 45m
2 stops
£127Multiple Airlines
Mon, 14 Sep - Wed, 30 Sep
KLM Logo
17:10 - 00:55
LHR
-
OTP
5h 45m
1 stop
KLM Logo
14:00 - 19:25
OTP
-
LHR
7h 25m
1 stop
£137KLM
Fri, 28 Aug - Fri, 4 Sep
KLM Logo
20:55 - 23:10
LHR
-
SPU
25h 15m
1 stop
KLM Logo
06:30 - 07:40
SPU
-
LHR
26h 10m
1 stop
£149KLM
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 5 days was to Split, at £109 return. The most popular route is from London Heathrow Airport (LHR) to Athens (ATH), and the cheapest return airline ticket found on this route in the last 5 days was £178.

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 £264 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 £374.

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 £474, 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 January, when tickets cost £146 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £302 and £294 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 6 weeks before departure.

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

Low season

January

Cheapest flight

£56
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly (27% more expensive on average)
Flight from London Heathrow Airport to Corfu

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 902 reviews
7.8Boarding
8.7Crew
7.4Food
6.9Entertainment
7.9Comfort
Airline reviews

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

4.0 OkayChristopher, Mar 2026
SMI - ATH
Read more Aegean Airlines reviews

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

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

The crew aboard Aegean were excellent, they picked on our son’s anxiety and immediately came to the rescue to see what they could do to make it go away.

Flight had delays as always. It has been very disappointing as the last 4 times I’ve travelled with Aegean we always had delays.

The only issue was a short window to make my connecting flight, and nobody to assist me in finding my way to the next gate.

Just ok. No much of a great travel experience. If you need point A to B they are ok.

More leg room, great if crew could move people before flight (ie if 3 in a row, offer to move 1 or 2 to an empty 3 seat row rather than let people move themselves after takeoff

Priority transfer bag left behind in Amsterdam causing extreme difficulty and inconvenience on arrival destination Athens

The food sandwich was OKAY for such a short flight. Crew were very caring. They helped my wife who has walking issues. They carried her bag and held her arm to help prevent tripping. All in all it was a professional effort on the part of all crew members. I highly recommend this crew of Aegean Airlines.

2 hours delay on the plane causing is to miss our connection

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.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

I love this airline.God bless CAO and the whole staff of this company

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

We didn’t fly into Neuark , because it departed without us . We ran to a closed gate , and no staff to assist, then to a customer service center that was also closed, then briskly walked (20mins) to another customer center and got a ticket , waited 2 hours , got a flight to JFK instead, because of the time delay we Ran to catch our train home , and again our luggage arrived 3 days later delivery time at 3:45 in the MORNING!!!! Crazy!!!!!! Took a few days to shake off this disappointment of your service. You’re an embarrassment to customer service .

No delays, helpful staff, well organised. The check in and boarding procedures ran smoothly. The only thing that put me off is that the meal had spicy peppers in. I would have appreciated at least a warning (if i couldn't have a choice) so as to simply not eat them because they were too spicy.

Austrian was not the issue. Kayak was terrible The flight was canceled. Frustrating but it can happen. The worst was Kayak's customer support around re-booking. I have chatted with a bot, than with a person who insisted the flight was still on as originally booked. while chatting i went on Austrian web page and told the kayak chat lady that the flight is shown as cancelled. She said she will escalate this and that someone will contact me within the hour. When I have asked her to give me the details of the flight she sees, She gave me the general A to B and return B to A. Totally unhelpful. After two hours I contacted them again, They were still saying the original flight is as scheduled and when I explained again I was told I will be contacted within 2-6 hours. NO ONE CONTACTED ME EVER SINCE! I have than contacted Austrian directly and was rebooked on a difficult flight. Kayak continued to send me irrelevant updates about my original flight. Terrible customer service at time of need.

From all the segments I flew it was the only one I did not get the option to choose ni seat, I did not get the quality of seat I had paid for. Crew was nice, airplane was clean, but no food, only water and a small courtesy chocolate. Everything else you had to pay for.

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.

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.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

I did not like that they failed to put my luggage on my connecting flight to Athens. I was promised it would be located and delivered within 2 days but later told there was no information on its location. This caused me to have unplanned for expenses because I then had to purchase new clothing to wear on my vacation. I did not receive my luggage until my return flight home. I will not be traveling with them again.

No internet, very narrow seats insufficient room for three passengers with encroachment.

Other than problems with checking in and uploading passport info everything was great. It would be nice to be able to manually input passport info. Often while traveling the bandwidth has problems uploading pictures

Give at least coffee or juice as it is an international flight.

Tiny, cramped seats with minimum leg room and hard armrests. Basic needs like a seat and luggage came with an additional charge. Budget airline amenities with premium airlune cost. I won't use this airline again.

Not enough food for a 4 hour trip…Lack of entertainment and with no WIfi accessibility I didn’t figure it out how to access free WiFi

Not good because in this cancelled and then rebooked flight BA put me and my husband in both middle seats when we were originally seated together in original flight and i was in aisle. I hate sitting in the middle. BA food needs to be better. It was just ok. Thanks though to screw and everyone one for safe flight

Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

The crew made it a great flight. They were friendly and attentive. They made me want to fly British Airways again.

BA has not been handling priority luggage with any special priority. This time our luggage was distinctly very slow to arrive, well after the first half of items to arrive. Business class flights cost a lot and it would be nice to have that reflected in the speed of baggage handling! (I note that this has worsened in our long experience of BA.) On a different note, we spent 2.5 hours on the plane after landing because of an airport mishap at Boston Logan. The pilot provided reasonably frequent update but more could have been done to ensure passenger comfort, such as more beverage and maybe snack services.

I purchased premier economy seats but I was seated one row off and was sitting in economy my bottle of water and cookie did not compare to the menus handed OP it in premier.

I understand and don't want food on a short trip, but tea and coffe (at least 1 cup) should be free. Nevertheless there was water available and the crew was nice.

Food is horrible. Flight was good and the staff were mostly men.

Delayed suitcase - terrible service to get my suitcase next day, I was informed it would arrive today in the afternoon (Jun/28). Now, I was informed I may or may not receive it until 3 am (Jun/29).

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

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

Long delay (6 hour late departure, not informative enough to provide up to date info on flight, poor food quality

Plane was late causing me to miss connection. Flight the next late causing me to miss the rebooked connection. Air seberia I think is more late than on time

Plane was old. Seats were hard and very close together. No in flight entertainment.

Lacking online check in, had to wait an hour in order to check in on the counter even without language.

Our flight was delayed from 1st July to 2nd July. But I wasnt informed! Checked my emails,every detail but I was definitely not informed! I and my family went to the airport on 1st July and learned that rhe flight is delayed to 2nd July at the airport! I am going to complain about this. I had to stay ın Kraljevo one more night. Luckily we could find a room. What ıf We couldn't?

Everything you need to know for your flight to Southeast Europe

Information on your arrival and departure airports