Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Southeast Europe from £46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Southeast Europe departing on 23/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Southeast Europe

Cheap return flights

British Airways Logo
10:30 - 15:45LHR-OTP
3h 15mdirect
British Airways Logo
08:05 - 10:00OTP-LHR
3h 55mdirect
£105British Airways
Find Deal
to., 22 jan. - lø., 24 jan.
British Airways Logo
10:15 - 15:30LHR-OTP
3h 15mdirect
British Airways Logo
20:20 - 21:50OTP-LHR
3h 30mdirect
£107British Airways
Find Deal
ti., 20 jan. - fr., 23 jan.
Aegean Airlines Logo
19:00 - 00:35LHR-ATH
3h 35mdirect
Aegean Airlines Logo
19:10 - 21:15ATH-LHR
4h 05mdirect
£125Aegean Airlines
Find Deal
ma., 19 jan. - lø., 24 jan.
Aegean Airlines Logo
22:15 - 03:50LHR-ATH
3h 35mdirect
Aegean Airlines Logo
16:00 - 17:55ATH-LHR
3h 55mdirect
£129Aegean Airlines
Find Deal
fr., 7 nov. - on., 12 nov.
Lufthansa Logo
07:25 - 16:15LHR-SPU
7h 50m1 stop
Lufthansa Logo
17:05 - 22:40SPU-LHR
6h 35m1 stop
£146Lufthansa
Find Deal
sø., 19 okt. - to., 23 okt.
Air Serbia Logo
13:30 - 15:35LHR-SOF
24h 05m1 stop
Air Serbia Logo
16:05 - 12:30SOF-LHR
22h 25m1 stop
£146Air Serbia
Find Deal
on., 10 sep. - ti., 16 sep.
Lufthansa Logo
07:25 - 16:15LHR-SPU
7h 50m1 stop
Lufthansa Logo
11:15 - 19:40SPU-LHR
9h 25m1 stop
£147Lufthansa
Find Deal
ma., 20 okt. - fr., 24 okt.
Austrian Airlines Logo
06:00 - 14:20LHR-CFU
6h 20m1 stop
Austrian Airlines Logo
15:10 - 18:40CFU-LHR
5h 30m1 stop
£147Austrian Airlines
Find Deal
ti., 7 okt. - ti., 14 okt.
Air Serbia Logo
13:30 - 14:35LHR-SPU
24h 05m1 stop
Air Serbia Logo
15:20 - 12:30SPU-LHR
22h 10m1 stop
£156Air Serbia
Find Deal
ti., 16 sep. - ti., 23 sep.
Austrian Airlines Logo
06:00 - 12:15LHR-DBV
5h 15m1 stop
Austrian Airlines Logo
13:00 - 21:40DBV-LHR
9h 40m1 stop
£162Austrian Airlines
Find Deal
sø., 28 sep. - to., 2 okt.

Aegean Airlines flights from London Heathrow Airport to Southeast Europe

Our best Aegean Airlines deals on London Heathrow Airport to Southeast Europe flight tickets
Aegean Airlines
19 Jan
LHR19:00London Heathrow
3h 35m
ATH00:35Athens Eleftherios V.
24 Jan
ATH19:10Athens Eleftherios V.
4h 05m
LHR21:15London Heathrow
£125
Find similar
Aegean Airlines
7 Nov
LHR22:15London Heathrow
3h 35m
ATH03:50Athens Eleftherios V.
12 Nov
ATH16:00Athens Eleftherios V.
3h 55m
LHR17:55London Heathrow
£129
Find similar
Aegean Airlines
1 Sept
LHR22:15London Heathrow
3h 35m
ATH03:50Athens Eleftherios V.
10 Sept
ATH19:20Athens Eleftherios V.
3h 50m
LHR21:10London Heathrow
£135
Find similar

Scandinavian Airlines flights from London Heathrow Airport to Southeast Europe

Our best Scandinavian Airlines deals on London Heathrow Airport to Southeast Europe flight tickets
Scandinavian Airlines
7 Oct
LHR09:55London Heathrow
9h 15m
1 stop
ATH21:10Athens Eleftherios V.
10 Oct
ATH11:30Athens Eleftherios V.
7h 30m
1 stop
LHR17:00London Heathrow
£165
Find similar
Scandinavian Airlines
25 Sept
LHR21:05London Heathrow
11h 35m
1 stop
ATH10:40Athens Eleftherios V.
2 Oct
ATH11:30Athens Eleftherios V.
7h 30m
1 stop
LHR17:00London Heathrow
£167
Find similar
Scandinavian Airlines
10 Aug
LHR09:55London Heathrow
7h 45m
1 stop
SPU18:40Split
20 Aug
SPU14:25Split
8h 10m
1 stop
LHR21:35London Heathrow
£178
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Southeast Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 1 august 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Southeast Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

to. 22/1

10:30-15:45

Nonstop3h 15m

Bucharest Otopeni Intl

lø. 24/1

08:05-10:00

Nonstop3h 55m

£105

LondonBucharest

LHR - OTP

LHROTP

London Heathrow

ti. 20/1

10:15-15:30

Nonstop3h 15m

Bucharest Otopeni Intl

fr. 23/1

20:20-21:50

Nonstop3h 30m

£107

LondonAthens

LHR - ATH

LHRATH

London Heathrow

ma. 19/1

19:00-00:35

Nonstop3h 35m

Athens Eleftherios V.

lø. 24/1

19:10-21:15

Nonstop4h 05m

£125

LondonAthens

LHR - ATH

LHRATH

London Heathrow

fr. 7/11

22:15-03:50

Nonstop3h 35m

Athens Eleftherios V.

on. 12/11

16:00-17:55

Nonstop3h 55m

£129

LondonSplit

LHR - SPU

LHRSPU

London Heathrow

sø. 19/10

07:25-16:15

1 stop7h 50m

Split

to. 23/10

17:05-22:40

1 stop6h 35m

£146

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

on. 10/9

13:30-15:35

1 stop24h 05m

Sofia

ti. 16/9

16:05-12:30

1 stop22h 25m

£146

LondonSplit

LHR - SPU

LHRSPU

London Heathrow

ma. 20/10

07:25-16:15

1 stop7h 50m

Split

fr. 24/10

11:15-19:40

1 stop9h 25m

£147

LondonCorfu

LHR - CFU

LHRCFU

London Heathrow

ti. 7/10

06:00-14:20

1 stop6h 20m

Corfu Ioannis Kapodistrias

ti. 14/10

15:10-18:40

1 stop5h 30m

£147

LondonSplit

LHR - SPU

LHRSPU

London Heathrow

ti. 16/9

13:30-14:35

1 stop24h 05m

Split

ti. 23/9

15:20-12:30

1 stop22h 10m

£156

LondonDubrovnik

LHR - DBV

LHRDBV

London Heathrow

sø. 28/9

06:00-12:15

1 stop5h 15m

Dubrovnik

to. 2/10

13:00-21:40

1 stop9h 40m

£162

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Southeast Europe from

How to get the cheapest flight ticket from London Heathrow Airport to Southeast Europe

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Southeast Europe?

The month of January is another great option to travel to Southeast Europe, with average flight prices from London Heathrow Airport averaging around £144.

What is the cheapest day to depart on your flight to Southeast Europe?

The cheapest day to depart from London Heathrow Airport to Southeast Europe is on a Thursday. Travellers who choose to depart for Southeast Europe on a Thursday will often find tickets for as low as £182. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £245. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Europe.

What is the cheapest time of day to depart on your flight to Southeast Europe?

At midday is the cheapest time of day to fly from London Heathrow Airport to Southeast Europe when you can find flight prices for as low as £167. Flying to Southeast Europe at midday is an ideal time because this is during off-peak travel hours. Flights to Southeast Europe are more costly in the morning, with an average ticket price of £232. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London Heathrow to Southeast Europe flight route?

Fly from London Heathrow to Belgrade Nikola Tesla for the best London Heathrow - Southeast Europe flight prices

How far in advance should I book a flight to Southeast Europe?

You are more likely to see cheaper flights to Southeast Europe from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Europe for around £203 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Europe from London Heathrow Airport for as low as £131 on momondo.

What cabin class options are available on London Heathrow to Southeast Europe flights?

There are 3 cabin classes available to choose from on London Heathrow to Southeast Europe flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Southeast Europe flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Southeast Europe.

Cheap London Heathrow Airport to Southeast Europe flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Southeast Europe

Best price found

£46

Fastest flight time

2h 25m

Direct flights

Mon, Tue, Wed and Sun

Airports in Southeast Europe

8 airports
The best one-way flight to Southeast Europe from London Heathrow Airport in the past 72 hours is £46. The best return flight deal from London Heathrow Airport to Southeast Europe found on momondo in the last 72 hours is £105.
The fastest flight from London Heathrow Airport to Southeast Europe takes 2h 25m
Direct flights go from London Heathrow Airport to Southeast Europe on Monday, Tuesday, Wednesday and Sunday. Airlines offering direct flights are: Croatia Airlines and British Airways..
There are 8 airports near Southeast Europe: Corfu Ioannis Kapodistrias (CFU), Heraklion N. Kazantzakis Apt. (HER), Athens Eleftherios V. (ATH), Dubrovnik (DBV), Split (SPU), Bucharest Otopeni Intl (OTP), Sofia (SOF), Tirana Rinas (TIA)
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Southeast Europe?

    Prices for flights from London Heathrow Airport to Southeast Europe are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Southeast Europe?

  • How old do you have to be to fly from London Heathrow Airport to Southeast Europe?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Southeast Europe.

  • What documentation or ID do you need to fly to Southeast Europe?

    The required travel and health documents for your Southeast Europe trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Europe. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Southeast Europe?

Best airlines flying from London Heathrow Airport to Southeast Europe

Compare and see reviews for airlines that fly from London Heathrow Airport to Southeast Europe with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £14Free CancellationRating
6.2
109 reviews
Search Ryanair flights
Wizz AirPriceFrom £26Free CancellationRating
6.0
144 reviews
Search Wizz Air flights
RyanairPriceFrom £32Free CancellationRating
6.8
5,154 reviews
Search Ryanair flights
easyJetPriceFrom £37Free CancellationRating
6.9
1,822 reviews
Search easyJet flights
Wizz AirPriceFrom £37Free CancellationRating
6.8
1,057 reviews
Search Wizz Air flights
Wizz AirPriceFrom £42Free CancellationRating
6.8
368 reviews
Search Wizz Air flights
Air SerbiaPriceFrom £54Free CancellationRating
6.3
196 reviews
Search Air Serbia flights
Jet2PriceFrom £58Free CancellationRating
8.3
164 reviews
Search Jet2 flights
Sky ExpressPriceFrom £58Free CancellationRating
7.5
116 reviews
Search Sky Express flights
LOTPriceFrom £112Free CancellationRating
7.6
1,105 reviews
Search LOT flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Southeast Europe?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Southeast Europe . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Southeast Europe with flexible booking policies on momondo?

Yes. All flights to Southeast Europe from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Southeast Europe?

momondo helps you find the best flight between London and Southeast Europe by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Southeast Europe right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Southeast Europe, momondo offers a useful price alert feature which will track prices for flights to Southeast Europe from London and alert you when they change.

An easier way to manage your Southeast Europe trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
on. 6/8
on. 13/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Southeast Europe

Popular Cities in Southeast Europe

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Bangkokfrom £329
Flights to New Yorkfrom £243
Flights to Dubaifrom £176
Flights to Istanbulfrom £62
Flights to Manchesterfrom £32
Flights to Jeddahfrom £156
Flights to Islamabadfrom £357
Flights to Manilafrom £474
Flights to New Delhifrom £323
Flights to Mumbaifrom £286
Flights to Lisbonfrom £43