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Cheap flights from London, ON to Southeast Europe from C$ 700

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ATH
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Southeast Europe

Enter your travel dates to find the best prices.

Cheapest flights from London to Southeast Europe
Explore the most affordable flight options available from London to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Mon 1/66:10 p.m.
YXU
-
ATH
1 stop12h 30m
Multiple Airlines
Tue 16/63:25 p.m.
ATH
-
YXU
1 stop30h 33m
Multiple Airlines
Deal found 20/3C$ 893
Thu 11/63:30 p.m.
YXU
-
ATH
2 stops20h 10m
Air Canada
Mon 15/61:10 p.m.
ATH
-
YXU
1 stop15h 28m
Air Canada
Deal found 19/3C$ 931
Sun 3/59:30 a.m.
YXU
-
ATH
2 stops44h 40m
Air Canada
Thu 7/51:10 p.m.
ATH
-
YXU
1 stop35h 23m
Air Canada
Deal found 17/3C$ 949
Sat 18/45:40 p.m.
YXU
-
ATH
2 stops31h 30m
Air Canada
Sat 25/410:25 a.m.
ATH
-
YXU
2 stops37h 39m
Air Canada
Deal found 19/3C$ 982
Fri 1/56:10 p.m.
YXU
-
ATH
2 stops14h 35m
Air Canada
Fri 15/51:10 p.m.
ATH
-
YXU
1 stop26h 43m
Air Canada
Deal found 17/3C$ 1,058
Tue 14/45:40 p.m.
YXU
-
OTP
2 stops17h 55m
Air Canada
Tue 21/46:20 a.m.
OTP
-
YXU
2 stops33h 24m
Air Canada
Deal found 17/3C$ 1,126
Wed 29/49:25 a.m.
YXU
-
OTP
2 stops19h 35m
Air Canada
Sun 3/56:20 a.m.
OTP
-
YXU
2 stops33h 33m
Air Canada
Deal found 20/3C$ 1,151
Wed 6/512:20 p.m.
YXU
-
OTP
2 stops16h 40m
Air Canada
Sun 10/56:20 a.m.
OTP
-
YXU
2 stops36h 23m
Air Canada
Deal found 17/3C$ 1,173
Sun 29/115:45 a.m.
YXU
-
SOF
2 stops29h 35m
Air Canada
Thu 3/126:00 a.m.
SOF
-
YXU
2 stops22h 46m
Air Canada
Deal found 20/3C$ 1,273
Sun 10/59:30 a.m.
YXU
-
ZAG
2 stops21h 05m
Air Canada
Thu 14/51:20 p.m.
ZAG
-
YXU
2 stops28h 23m
Air Canada
Deal found 18/3C$ 1,336
Sat 30/56:10 p.m.
YXU
-
SPU
2 stops41h 55m
Lufthansa
Tue 9/65:15 p.m.
SPU
-
YXU
2 stops51h 43m
Lufthansa
Deal found 17/3C$ 1,359
Sat 30/512:20 p.m.
YXU
-
SPU
2 stops26h 10m
Multiple Airlines
Tue 9/63:05 p.m.
SPU
-
YXU
2 stops32h 28m
Multiple Airlines
Deal found 19/3C$ 1,413

Find flight deals from London to Southeast Europe

Keep the following information in mind while searching for London to Southeast Europe flight deals. Data was last updated 22 March 2026.

Round-trip from

C$ 893

One-way from

C$ 700
Air Canada
  • Air Canada
  • 1/6-16/6
  • 2 total stops
  • 43h 03m total
  • London to Southeast Europe
Search Deals
4/5
  • 4/5
  • 3 total stops
  • 33h 40m total
  • London to Southeast Europe
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from London to Southeast Europe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonAthens

YXU - ATH

YXUATH

London

Mon 1/6

6:10 p.m.-1:40 p.m.

1 stop12h 30m

Athens Eleftherios V.

Tue 16/6

12:10 p.m.-9:38 p.m.

2 stops16h 28m

C$ 896

LondonAthens

YXU - ATH

YXUATH

London

Thu 11/6

3:30 p.m.-6:40 p.m.

2 stops20h 10m

Athens Eleftherios V.

Mon 15/6

1:10 p.m.-9:38 p.m.

1 stop15h 28m

C$ 931

LondonAthens

YXU - ATH

YXUATH

London

Sun 3/5

9:30 a.m.-1:10 p.m.

2 stops44h 40m

Athens Eleftherios V.

Thu 7/5

1:10 p.m.-5:33 p.m.

1 stop35h 23m

C$ 949

LondonAthens

YXU - ATH

YXUATH

London

Sat 18/4

5:40 p.m.-8:10 a.m.

2 stops31h 30m

Athens Eleftherios V.

Sat 25/4

10:25 a.m.-5:04 p.m.

2 stops37h 39m

C$ 982

LondonAthens

YXU - ATH

YXUATH

London

Fri 1/5

6:10 p.m.-3:45 p.m.

2 stops14h 35m

Athens Eleftherios V.

Fri 15/5

12:10 p.m.-9:38 p.m.

2 stops16h 28m

C$ 1,062

LondonBucharest

YXU - OTP

YXUOTP

London

Tue 14/4

5:40 p.m.-6:35 p.m.

2 stops17h 55m

Bucharest Otopeni Intl

Tue 21/4

6:20 a.m.-8:44 a.m.

2 stops33h 24m

C$ 1,126

LondonBucharest

YXU - OTP

YXUOTP

London

Wed 29/4

9:25 a.m.-12:00 p.m.

2 stops19h 35m

Bucharest Otopeni Intl

Sun 3/5

6:20 a.m.-8:53 a.m.

2 stops33h 33m

C$ 1,151

LondonBucharest

YXU - OTP

YXUOTP

London

Wed 6/5

12:20 p.m.-12:00 p.m.

2 stops16h 40m

Bucharest Otopeni Intl

Sun 10/5

6:20 a.m.-11:43 a.m.

2 stops36h 23m

C$ 1,173

LondonZagreb

YXU - ZAG

YXUZAG

London

Sun 10/5

9:30 a.m.-12:35 p.m.

2 stops21h 05m

Zagreb Franjo Tuđman

Thu 14/5

1:20 p.m.-11:43 a.m.

2 stops28h 23m

C$ 1,336

LondonSplit

YXU - SPU

YXUSPU

London

Sat 30/5

6:10 p.m.-6:05 p.m.

2 stops41h 55m

Split

Tue 9/6

5:15 p.m.-2:58 p.m.

2 stops51h 43m

C$ 1,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

Showing 1-10 of 40 resultsSorted by cheapest first
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Best time to book a flight from London to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London, Ontario to Southeast Europe?

Currently, April is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 161). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 877). 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.

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. 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 Southeast Europe. Reviews last updated 22 March 2026.
Read through reviews of airlines operating flights from London to Southeast Europe, such as Air Canada and Lufthansa. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,830 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,830 reviews
Air Canada
7.1
Good
10,830 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Lufthansa
6.8
Okay
7,860 reviews
Air Canada
7.1
Good
10,830 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

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

  • What airport do you fly from for flights from London to Southeast Europe?

    For a flight from London to Southeast Europe, you will be flying from London. London (YXU) is just 8.6 km from the centre of the city.

  • How long is the flight from London, Ontario to Southeast Europe?

    For as low as C$ 931, Air Canada can have you in Southeast Europe from London, Ontario in 20h 10m. There are 8264 km between London, Ontario and Southeast Europe. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London, Ontario to Southeast Europe?

    While some choose either London - Split or London - Dubrovnik, London - Athens Eleftherios V. is the most popular route from London, Ontario to Southeast Europe.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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, Ontario to Southeast Europe?

    Currently, April is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 161). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 877). 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 London to Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Southeast Europe

Discover the top airline that operate flights from London to Southeast Europe. 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 629,999 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,092AverageC$ 1,423FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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

Deals for London to Southeast Europe flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Southeast Europe for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from London to Southeast Europe with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southeast Europe from London today and book when prices fit your budget.

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