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Cheap flights from London Heathrow Airport to Southeast Europe

LHR — ATH
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Southeast Europe

Popular in

August

Cheapest in

January

Average price

£79
Highest demand for flights based on searches. 34% potential increase in price (£48 potential increase over avg. return price).
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Cheapest flight prices on average. 9% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Cheapflights Insights

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

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

The best time to book flights from London Heathrow Airport to Southeast Europe is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Europe (average of £147). Flying from London Heathrow Airport to Southeast Europe in July is currently the most expensive (average of £311). 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 LHR to YMH?

When flying from London Heathrow Airport to Southeast Europe, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 21% versus a flight in the morning.

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

Travellers seeking maximum savings on their London Heathrow Airport to Southeast Europe flight should consider departing on Thursday mornings 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 Southeast Europe

Read reviews from past customers who have flown with Aegean Airlines,LOT, andAustrian Airlines from London Heathrow Airport to Southeast Europe. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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
913 reviews
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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
LOT
7.5
Good
1,191 reviews
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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
Austrian Airlines
7.5
Good
981 reviews
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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
8,297 reviews
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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
8,282 reviews
Aegean Airlines
8.1
Very Good
913 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Crew

8.7

Entertainment

6.9

Boarding

7.8

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

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

    The cheapest airline one-way is Wizz Air, with whom users have recently found tickets for as low as £16. However, be on the lookout for offers from Wizz Air and Aegean Airlines, as they are both options that can get you from London Heathrow Airport to Southeast Europe for a low price.

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

    The most popular route from London Heathrow Airport to Southeast Europe is London Heathrow - Athens Eleftherios V.. You may also consider London Heathrow - Bucharest Otopeni Intl or London Heathrow - Zagreb Franjo Tuđman.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Southeast Europe are American Airlines (81%), British Airways (81%) and Japan Airlines (81%).

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

    On average you can expect to pay £404 for a flight from London Heathrow Airport to Southeast Europe. The cheapest flight overall is £79 while the most popular route, (London Heathrow - Athens Eleftherios V.) is currently priced at £135.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Southeast Europe 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 London Heathrow Airport to Southeast Europe?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Europe (average of £147). Flying from London Heathrow Airport to Southeast Europe in July is currently the most expensive (average of £311). 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

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Alternative routes for Heathrow to Southeast Europe

Gatwick to Istanbul flights
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London City to Edinburgh flights
Gatwick to Leonardo da Vinci/Fiumicino flights
Gatwick to Beauvais-Tille flights
London City to Istanbul flights
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Heathrow to Madrid flights
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Gatwick to Bruxelles-National flights
Stansted to Bruxelles-National flights
Luton to Bruxelles-National flights
Gatwick to Madrid flights
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Southend to Amsterdam flights
Stansted to Glasgow Intl flights
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Luton to Frankfurt flights
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Luton to Málaga flights

Top 10 airlines flying from Heathrow to Southeast Europe

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£17Average£88FlexibilityNo cancel feeOn-timeN/A
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Wizz AirCheapest£33Average£133FlexibilityNo cancel feeOn-timeN/A
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RyanairCheapest£38Average£95FlexibilityNo cancel feeOn-timeN/A
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Wizz AirCheapest£40Average£143FlexibilityNo cancel feeOn-timeN/A
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Wizz AirCheapest£43Average£104FlexibilityNo cancel feeOn-time83%
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Air SerbiaCheapest£56Average£194FlexibilityNo cancel feeOn-timeN/A
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easyJetCheapest£75Average£220FlexibilityNo cancel feeOn-time86%
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British AirwaysCheapest£84Average£272FlexibilityNo cancel feeOn-time70%
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LOTCheapest£106Average£234FlexibilityNo cancel feeOn-time81%
Search LOT flights
Aegean AirlinesCheapest£112Average£253FlexibilityNo cancel feeOn-time87%
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Fly with Cheapflights

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

When you search for this flight from Heathrow to Southeast Europe, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 Southeast Europe from Heathrow.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Southeast Europe, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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