£48 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 6/10. 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

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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Flights Deals

Best Southeast Europe Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours
Athens
Athensdirect£102
Tirana
Tirana1 stop£88
Heraklion
Heraklion1 stop£131
Corfu
Corfudirect£152
Split
Splitdirect£111
Sofia
Sofiadirect£109
Rhodes
Rhodes1 stop£141
Belgrade
Belgradedirect£113
Sarajevo
Sarajevo1 stop£161
Dubrovnik
Dubrovnik1 stop£135
Tivat
Tivat1 stop£137
Chania
Chaniadirect£171
Thessaloniki
Thessalonikidirect£157
Thera
Thera1 stop£150
Zakynthos
Zakynthosdirect£166
Pristina
Pristina1 stop£157
Podgorica
Podgorica1 stop£156
Argostoli
Argostoli1 stop£196
Skopje
Skopje1 stop£146
Athens
Athensdirect£102
Tirana
Tirana1 stop£88
Heraklion
Heraklion1 stop£131
Corfu
Corfudirect£152
Split
Splitdirect£111
Sofia
Sofiadirect£109
Rhodes
Rhodes1 stop£141
Belgrade
Belgradedirect£113
Sarajevo
Sarajevo1 stop£161
Dubrovnik
Dubrovnik1 stop£135
Tivat
Tivat1 stop£137
Chania
Chaniadirect£171
Thessaloniki
Thessalonikidirect£157
Thera
Thera1 stop£150
Zakynthos
Zakynthosdirect£166
Pristina
Pristina1 stop£157
Podgorica
Podgorica1 stop£156
Argostoli
Argostoli1 stop£196
Skopje
Skopje1 stop£146

Cheap Flights from Heathrow to Southeast Europe

 
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

Sat, 28 Jun - Wed, 2 Jul
 Logo
15:05 - 00:35LHR-TIA
8h 30m1 stop
 Logo
05:35 - 09:55TIA-LHR
5h 20m1 stop
Thu, 4 Dec - Thu, 5 Feb
British Airways Logo
08:25 - 12:25LHR-TIA
3h 00mdirect
British Airways Logo
13:10 - 15:40TIA-LHR
3h 30mdirect
£98British Airways
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Sun, 12 Oct - Thu, 16 Oct
Lufthansa Logo
09:00 - 16:15LHR-SPU
6h 15m1 stop
Lufthansa Logo
17:05 - 20:45SPU-LHR
4h 40m1 stop
£123Lufthansa
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Mon, 6 Oct - Thu, 9 Oct
Aegean Airlines Logo
22:15 - 03:50LHR-ATH
3h 35mdirect
Aegean Airlines Logo
16:00 - 17:55ATH-LHR
3h 55mdirect
£137Aegean Airlines
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Tue, 1 Jul - Mon, 7 Jul
Aegean Airlines Logo
22:15 - 18:10LHR-TIA
18h 55m1 stop
Aegean Airlines Logo
10:05 - 17:55TIA-LHR
8h 50m1 stop
£139Aegean Airlines
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Mon, 24 Nov - Fri, 28 Nov
Lufthansa Logo
06:35 - 17:20LHR-HER
8h 45m1 stop
Lufthansa Logo
18:10 - 22:55HER-LHR
6h 45m1 stop
£140Lufthansa
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Tue, 8 Jul - Wed, 23 Jul
Austrian Airlines Logo
06:00 - 17:55LHR-DBV
10h 55m1 stop
Austrian Airlines Logo
13:00 - 21:40DBV-LHR
9h 40m1 stop
£143Austrian Airlines
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Fri, 3 Oct - Wed, 8 Oct
Austrian Airlines Logo
06:00 - 17:45LHR-SPU
10h 45m1 stop
Austrian Airlines Logo
18:30 - 21:40SPU-LHR
4h 10m1 stop
£144Austrian Airlines
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Fri, 24 Oct - Sun, 2 Nov
LOT Logo
18:10 - 17:25LHR-SKG
21h 15m1 stop
LOT Logo
14:00 - 09:35SKG-LHR
21h 35m1 stop
£204LOT
Find Deal
Thu, 10 Jul - Tue, 15 Jul
LOT Logo
18:10 - 12:55LHR-SKG
16h 45m1 stop
LOT Logo
18:25 - 09:20SKG-LHR
16h 55m1 stop
£206LOT
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Southeast Europe.

The cheapest ticket to Southeast Europe from London Heathrow Airport found in the last 72 hours was to Belgrade, at £84 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 72 hours was £107.

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 £1,126, 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 £141 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is £286 and £281 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, Wednesday 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 Thursday, 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 the flight from London Heathrow Airport to Southeast Europe, you should book around 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


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

Low seasonJanuary
High seasonAugust
Cheapest flight£48
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (28% more expensive on average)
Flight from London Heathrow Airport to Athens

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.

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

    The cheapest time of day to fly to Southeast Europe is generally at night, when retur flights cost £360 on average. Morning departures are around 8% 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 £434.

Top 5 airlines serving 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 759 reviews
7.8Boarding
7.4Food
8.6Crew
7.9Comfort
7.0Entertainment
Airline reviews

Ove Aegean Airlines! Used them for several flights over past 4.months. never flown w them before but will certainly use in the future!!!

10.0 ExcellentBobbi, Jun 2025TIA - CAI
Read more Aegean Airlines reviews

Ove Aegean Airlines! Used them for several flights over past 4.months. never flown w them before but will certainly use in the future!!!

A thoroughly enjoyable experience in business class, which we “won” in the airlines lottery In exchange for a relatively small deposit. The breakfast served at the beginning of this three hour flight was absolutely phenomenal. I would be tempted to fly Aegean airlines on a transatlantic flight in light of this experience.

Was grateful that this flight was held for us as we were late from our prior flight.

Our connecting flight from Barcelona to Athens was late and it appeared that we would not make the connectimg flight to Telaviv. The plane ended up waiting and we made the connection. The airline redeemed itself.

Lovely experience with Aegean. The crew felt with some extremely rude customers with professionalism and poise. The flight went off without a hitch and even landed early!

When a flight has a delay of about an hour it is customary to announce the passengers

Nice business class service for shot flight. Especially when the free WiFi works

I liked bumping up to Business for less than full price. Also the option to choose your own meal online. In retrospect I would have gone with the standard meal option, but c'st la vie. Overall pretty standard flight, got good views of Greece as the sun rose. That's about it.

It was a short flight (2hours) so the tiny, tiny seats were somewhat tolerable. People with long legs had their knees up to the chair in front of them, quite uncomfortable. I was pleasantly surprised they served a small meal which was quite good. Staff were all great.

Boarding in BCN was really poorly managed. No communication from airline staff and no signs as to what groups line up where. It was just guessing. There were delays that were also not communicated so everybody was standing in line for almost an hour.

Five star experience all around except for my seat, which was broken. It would only go down 70%.Of the way. It defeats the purpose of buying a business class ticket if you don’t actually get to lay flat..

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.

Tirana was crazy check in and getting bussed to another gate. Both Germany stops were intensive customs but organized, but that wasn't the airlines problem. The crews were fabulous on the planes. The announcements were not easy to understand in English, slurred speech. Customs inthe US were fast. We waited for luggage, three later arriving planes had their luggage and left before us

Business class old style from 10 years ago. Ok for short flights but nor for 12 hours journey. The passenger near the window have to jump over the passenger seat aisle side or wake him up to upright the seat. That’s not the business class that you expect on long night flight. Seats are not so confortable. And believe it or not no wifi!

We have travelled on 13 December with Austrian Airlines from Yangon through Bangkok and Vienna to Varna. The first flight operated by Thai Airlines was nice and comfortable. I wouldn’t say the same thing about the next two flights which were operated directly by the Austrian Airlines. During our flight from Bangkok to Vienna:  > The service was very poor – serving of food and drinks was disorganized, late and not combined, the stewards were walking back and forth without doing anything substantial for the passengers. Even the morning breakfast was very late with a cup of coffee almost while landing (after a reminding).  > The food itself was OK-ish but for a 12-hour flight, there were no snacks/bites in between dinner and breakfast as it is with the other airlines.  > The cutlery was wooden, most probably recycling, but very unpleasant to eat with.  > The stewards were not rude but not friendly and/or helpful  > And also, half of the passengers had travel sets, others did not. The flight from Vienna to Varna was another surprise: firstly, the flight was late and secondly, they were serving only water free, even the coffee was paid, so were the snacks, but we had to pay to reserve seats. The whole experience is as if it was a low-cost airline. All in all, I wouldn’t recommend using the services of Austrian Airlines: the ticket prizes are quite the same as of the other carriers flying to this destination and you would have much pleasant time.

Friendly staff, always good food , as comfortable as it can be in economy

Business class is not worth it. Not comfortable and old plane with no privacy or enough space unless you on the single seats

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 .

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

Usual issues with flight delay. Perennial problem of travel by plane.

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The flight was delayed by an hour. Made the connection uncomfortably tight.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

The flight was cancelled due to tech problem with the plane

I pre-ordered my meal and did not receive it. The seats are very old, uncomfortable and dirty. The crew was excellent and made my stay on board comfortable and enjoyable.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

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 had handicap and pre board due to a recent broken arm, was made to find my own help placing carry on baggage in the storage above. My tv and entertainment unit did not work correctly, requested help and it took 30 minutes to get help, she did not fix it or come back to see if it was fixed. I went to her a second time and she did another reset, still did not fix.

I didn’t have food and they don’t include entertainment. Not much leg room at all. Staff were great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

charging port did not work, no entertainment system. Other than that the flight was good and safe.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

When Stephen arrived with our wheel chairs - we were in excellent hands! He was such great help with getting our rental car and then reporting our missing luggage. When you are exhausted from traveling for too many hours, he was just what we needed to navigate everything! Give that guy a raise!

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

Gate information deliberately delayed to only one hour B4 flight, lack of info finding gate.

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