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Cheap flights from Southeast Europe to London Heathrow Airport

ATH — LHR
7 Jun — 14 Jun1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Southeast Europe to Heathrow

Keep the following information in mind while searching for Southeast Europe to Heathrow flight deals. Data was last updated 8 May 2026.

Round-trip from

£124

One-way from

£36

Popular in

July

Cheapest in

February

Average price

£80
British Airways
  • British Airways
  • 20/10-20/10
  • Nonstop
  • 7h 00m total
  • Southeast Europe to London
Search Deals
4/6
  • 4/6
  • 1 total stop
  • 10h 15m total
  • Southeast Europe to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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Cheapflights Insights

Everything you need to know about your flight from Southeast Europe to London Heathrow Airport

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

The price you pay for your flight from Southeast Europe to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Southeast Europe to London Heathrow Airport?

Currently, August is the cheapest month in which you can book a flight from Southeast Europe to London Heathrow Airport (average of £39). Flying from Southeast Europe to London Heathrow Airport in March is currently the most expensive (average of £87). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMH to LHR?

Find hourly flight availability from Southeast Europe to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 May 2026.

It’s optimal to fly from Southeast Europe to London Heathrow Airport in the evening. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Southeast Europe to Heathrow. Price data was last updated on 2 May 2026.

Travellers seeking maximum savings on their Southeast Europe to London Heathrow Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 8 May 2026.
Check out reviews from past customers who have flown with Aegean Airlines,Lufthansa, andBritish Airways from Southeast Europe to London Heathrow Airport to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
868 reviews
Check prices

Entertainment

6.9

Boarding

7.8

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
Aegean Airlines
8.1
Very Good
868 reviews
Aegean Airlines
8.1
Very Good
868 reviews
Check prices

Entertainment

6.9

Boarding

7.8

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
Lufthansa
6.8
Okay
7,980 reviews
Aegean Airlines
8.1
Very Good
868 reviews
Check prices

Entertainment

6.9

Boarding

7.8

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
British Airways
6.7
Okay
7,952 reviews
Aegean Airlines
8.1
Very Good
868 reviews
Check prices

Entertainment

6.9

Boarding

7.8

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable
Air Serbia
6.2
Okay
222 reviews
Aegean Airlines
8.1
Very Good
868 reviews
Check prices

Entertainment

6.9

Boarding

7.8

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Reviews

1 / 20
10.0
Excellent

mandy,Dec 2025

ATH - RIX

You get what you pay for! No food or entertainment but seats were comfortable

Related info for your journey

Find useful and relevant information for your journey from Southeast Europe to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Southeast Europe to London Heathrow Airport?

    For as low as £126, British Airways can have you in London Heathrow Airport from Southeast Europe in 3h 30m. The distance from Southeast Europe to London Heathrow Airport is about 1178 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Southeast Europe to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £29 on Wizz Air. Other airlines that offer cheap prices include Air Serbia from £40 and British Airways from £45 one-way.

  • What are the most popular routes from Southeast Europe to London Heathrow Airport?

    The most popular flight routes from Southeast Europe to London Heathrow Airport are Athens Eleftherios V. - London Heathrow, Thessaloniki Makedonia - London Heathrow and Bucharest Otopeni Intl - London Heathrow.

  • What are the most reliable airlines from Southeast Europe to London Heathrow Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Southeast Europe to London Heathrow Airport on time: LATAM Airlines (97%), Air Canada (91%), American Airlines (91%).

  • What are the cheapest flights from Southeast Europe to London Heathrow Airport?

    While on average a flight from Southeast Europe to London Heathrow Airport is generally £204, our data shows the cheapest flight currently is £67. When looking at the most popular route, (Athens Eleftherios V. - London Heathrow), you can expect to pay £148 for that flight.

  • Can I find deals for flights from Southeast Europe to Heathrow that include hotel bookings?

    Yes. In addition to deals on Southeast Europe to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southeast Europe to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southeast Europe to Heathrow.

  • Can I find deals for business class flights from Southeast Europe to Heathrow?

    Yes. Cheapflights offers flight deals from Southeast Europe to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Southeast Europe to London Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Southeast Europe to London Heathrow Airport (average of £39). Flying from Southeast Europe to London Heathrow Airport in March is currently the most expensive (average of £87). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southeast Europe to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Frankfurt to Gatwick flights
Duesseldorf Intl to Stansted flights
Amsterdam to Gatwick flights
Duesseldorf Intl to Luton flights
Charles de Gaulle to Heathrow flights
Frankfurt to Luton flights
Frederic Chopin to Heathrow flights
Duesseldorf Intl to Heathrow flights
Frankfurt to London City flights
Frankfurt to Heathrow flights
Charles de Gaulle to Luton flights
Charles de Gaulle to Gatwick flights
Charles de Gaulle to London City flights
Orly to Gatwick flights
Madrid to Heathrow flights
Cologne to Gatwick flights
Duesseldorf Intl to London City flights
Beauvais-Tille to Stansted flights
Charles de Gaulle to Southend flights
Vienna to Stansted flights
Frederic Chopin to Luton flights
Vienna to Heathrow flights
Vicenza to Heathrow flights
Beauvais-Tille to Luton flights
Madrid to Stansted flights
Madrid to Gatwick flights
Amsterdam to Stansted flights
Amsterdam to Luton flights
Orly to London City flights
Leonardo da Vinci/Fiumicino to Gatwick flights
Vienna to Gatwick flights
Madrid to London City flights
Malpensa to Heathrow flights
Bruxelles-National to Gatwick flights
Dublin to Gatwick flights
Leonardo da Vinci/Fiumicino to Heathrow flights
Bruxelles-National to Stansted flights
Dublin to Stansted flights
Dublin to Luton flights
Frederic Chopin to Gatwick flights
Vienna to London City flights
Bruxelles-National to Luton flights
Frankfurt to Southend flights
Vicenza to Gatwick flights
Lyon to Heathrow flights
Orly to Luton flights
Berlin to Gatwick flights
Marseille to Gatwick flights
Frankfurt-Hahn to Stansted flights
Frederic Chopin to Stansted flights

Top 4 airlines flying from Southeast Europe to Heathrow

Discover the top 4 airlines that operate flights from Southeast Europe to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest£42Average£170FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
British AirwaysCheapest£87Average£188FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Bulgaria AirCheapest£94Average£197FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights
Aegean AirlinesCheapest£96Average£208FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southeast Europe to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southeast Europe to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Southeast Europe to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Southeast Europe.

Can Cheapflights find flights from Southeast Europe to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Southeast Europe? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southeast Europe to Heathrow become cheaper?

Of course! You can now track prices for flights from Southeast Europe to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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