£55 Find Cheap Flights from London Heathrow Airport to Southeast Europe – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Southeast Europe

Cheapest return flight prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Zagreb
2h 15mNonstop
from £95per person
Bucharest
3h 15mNonstop
from £100per person
Sofia
3h 15mNonstop
from £109per person
Tirana
3h 00mNonstop
from £116per person
Athens
3h 35mNonstop
from £132per person
Split
2h 30mNonstop
from £133per person
Heraklion
4h 05mNonstop
from £142per person
Corfu
3h 15mNonstop
from £143per person
Explore the map
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?

The cheapest ticket to Southeast Europe from London Heathrow Airport found in the last 5 days was to Belgrade, at £85 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 £162.

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

The cheapest time of day to fly to Southeast Europe is generally in the afternoon, when retur flights cost £263 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 £379.

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

No, with an average price for the route of £457, prices are generally cheapest when you fly direct.

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

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 £308 and £305 respectively.

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

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 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 16% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

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

Low season

January

Cheapest flight

£55
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from London Heathrow Airport to Tirana

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

 
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.
8.2
Aegean AirlinesOverall score based on 905 reviews
7.9Comfort
8.7Crew
6.9Entertainment
7.4Food
7.8Boarding
Airline reviews

There was nothing wrong with Aegean. We were very confused about whom to contact, since we booked with Kayak, then got shoved over to Underpricer and some other agency.

10.0 ExcellentAnonymous, Aug 2026
Read more Aegean Airlines reviews

There was nothing wrong with Aegean. We were very confused about whom to contact, since we booked with Kayak, then got shoved over to Underpricer and some other agency.

From the checking in process making sure that the correct groups board in order, the food on board included in price of air ticket with a special request for dietary requirements, to arriving ahead of schedule and great WiFi connection included on board.

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.

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

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

Overall great experience, flight was good and crew was focused on safety and comfort

Issue with boarding, group of passengers on a religious trip coming back to NYC kept trying to change seats, even standing when the plane was pushing back. Crew/Pilot kept very good composure, some passengers got aggravated and started venting out loud but this group created a serious security risk. Crew/Pilot should've been more stringent and called in security or remove them from the flight.

I have flown over 2million miles. Great flight but bizarre boarding process. They must have paged half the passengers to the desk for documentation check before boarding anyone. Overall great value.

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Boarding was a madhouse. Airport staff was completely disinterested in communicating about the delays. Never again.

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

During the flight, the fleas biting me in the plane.

Once again very friendly helpful staff A short flight but not only on time actually a bit early

The flight was very bad, the food and the staff was very rude. My last time with them

Horrible trip. Plane was late , so late . the flight conditions were very uncomfortable.

Again, have your ducks in a row as an airline. This is an embarrassment for any of us who have lived in Vienna.

I was in the premier economy and enjoyed the room and the comfort. Although I will say that it would take a real expert to make the location of the place to plug in headsets and chargers more difficult. With all of the room available it makes no sense to bury those connections and to make it so difficult to use them. The couple in front of me needed to use the cell phone light in order to see where to plug in a charger. The seats are comfortable and the food was good.

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 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.

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.

Someone sat in my seat and this made boarding protracted and unpleasant. The stewardesses kept saying, “it is important that everyone be seated — or we will be further delayed,” but for a long time they did not tell me where to sit. At the end of the flight a baby screamed loudly for several minutes and it took ninety minutes (!) to get through EU passport and customs. We had to stand the whole time in a an overheated room. The seat on the plane was narrow. These things are not all Lufthansa’s fault but they made for a somewhat unpleasant trip.

Everything about the flight was excellent except for the fact that we had to wait one hour on the tar app and then I had to race to catch my connecting flight with the next stop

The flight on time, flawless check in and boarding process, the crew was very friendly.

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.

The flight was canceled and I was directed to Air France two days later than my plan departure day. This involve getting two more days of hotel and also not being able to get a boarding pass until I got to the Istanbul Air France boarding desk. It has been a troubling time.

I didn’t take that flight. My original flight was cancelled from Los Angeles. They rebooked me following day through Montreal My flight was LAX to YUL and YUL GVA

It makes no sense for several types of drinks to already be out of stock in the middle of the flight.

I have a walker I need it to get from the plane to customs and baggage claim. It had a huge orange tag on it saying it should be given to me as I got off the plane. It was not and the flight staff didn’t know where it was—both on my flight to London and on the return. In It was very frustrating

They forced me to check my wheel bag because there was a full flight. This was very frustrating. I went out of my way when planning my trip to not have to check any bags. Usually, they ask people if they are willing to check a bag they do not force people. This felt like bad planning on the part of the airline.

Had a plane! Have a plan! Have my luggage! 10 hours of travel turned into 50 hours. Good Lord!

Those seats were very comfortable. Nice leg room and food was great 👍

because the previous flight operated by BA was delayed, when arrived to the gate, I was surprised that I was taken out of this flight and they rebook me but with a different seat

We arrived at 430a for our flight. We only had carry on so we were sent to security. The BA person was tagging all carryon in case a shortage of bin space. We were on the plane like 20th and told we had to check carryon because it had a tag. Unexpected and unnecessary

The travel on premium economy class was very positive. Comfortable with plenty of space and leg room. The service throughout was top notch. Crew members were kind and helpful. Food and entertainment were excellent.

More options for your flight to Southeast Europe

Complete your trip to Southeast Europe with a hotel stay or car hire