Cheap flights from London, ON to Southeast Europe from C$ 963

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ATH
6 Mar — 13 Mar1
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 4 February 2026.

Thu 23/45:10 a.m.
YXU
-
OTP
2 stops30h 25m
Air Canada
Mon 27/46:20 a.m.
OTP
-
YXU
2 stops41h 43m
Air Canada
Deal found 3/2C$ 963
Fri 6/29:25 a.m.
YXU
-
OTP
2 stops21h 45m
Air Canada
Tue 10/25:55 a.m.
OTP
-
YXU
2 stops42h 10m
Air Canada
Deal found 2/2C$ 1,011
Wed 8/45:10 a.m.
YXU
-
ZAG
2 stops25h 25m
Air Canada
Sun 12/45:55 a.m.
ZAG
-
YXU
2 stops32h 48m
Air Canada
Deal found 3/2C$ 1,155
Thu 19/29:25 a.m.
YXU
-
SOF
2 stops25h 35m
Air Canada
Mon 23/21:45 p.m.
SOF
-
YXU
2 stops50h 01m
Air Canada
Deal found 2/2C$ 1,202
Sat 30/512:20 p.m.
YXU
-
SPU
2 stops22h 10m
Multiple Airlines
Tue 9/63:05 p.m.
SPU
-
YXU
2 stops32h 28m
Multiple Airlines
Deal found 3/2C$ 1,378
Wed 15/45:40 p.m.
YXU
-
DBV
2 stops14h 40m
Air Canada
Sun 19/46:35 a.m.
DBV
-
YXU
2 stops32h 08m
Air Canada
Deal found 2/2C$ 1,382
Tue 11/83:30 p.m.
YXU
-
ZAG
2 stops15h 05m
Lufthansa
Wed 9/96:15 a.m.
ZAG
-
YXU
2 stops17h 30m
Lufthansa
Deal found 3/2C$ 1,438
Fri 22/512:20 p.m.
YXU
-
ATH
1 stop15h 50m
Air Canada
Mon 25/53:25 p.m.
ATH
-
YXU
1 stop24h 28m
Air Canada
Deal found 3/2C$ 1,474
Sun 22/25:40 p.m.
YXU
-
ZAG
2 stops14h 20m
Air Canada
Thu 26/29:50 a.m.
ZAG
-
YXU
2 stops17h 31m
Air Canada
Deal found 3/2C$ 1,532
Sat 30/56:10 p.m.
YXU
-
SPU
2 stops44h 00m
SWISS
Tue 9/64:45 p.m.
SPU
-
YXU
3 stops54h 48m
SWISS
Deal found 3/2C$ 1,677
Tue 12/512:20 p.m.
YXU
-
SPU
2 stops17h 20m
Air Canada
Sat 16/57:20 a.m.
SPU
-
YXU
2 stops20h 18m
Air Canada
Deal found 1/2C$ 1,728
Sat 21/35:40 p.m.
YXU
-
SKG
2 stops45h 20m
Multiple Airlines
Sat 28/37:30 p.m.
SKG
-
YXU
2 stops27h 33m
Multiple Airlines
Deal found 4/2C$ 1,915

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 4 February 2026.

Round-trip from

C$ 963

Popular in

October

Cheapest in

May

Average price

C$ 1,317
Air Canada
  • Air Canada
  • 23/4-27/4
  • 4 total stops
  • 72h 08m total
  • London to Southeast Europe
Highest demand for flights based on searches. 13% potential increase in price (C$ 305 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 63 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 4 February 2026.
Use the filters below to find and compare flights from London to Southeast Europe that are best for you.

Fly from

London

Fly to

Southeast Europe

Route

Depart

Return

Price

LondonBucharest

YXU - OTP

YXUOTP

London

Thu 23/4

5:10 a.m.-6:35 p.m.

2 stops30h 25m

Bucharest Otopeni Intl

Mon 27/4

6:20 a.m.-5:03 p.m.

2 stops41h 43m

C$ 963

LondonZagreb

YXU - ZAG

YXUZAG

London

Wed 8/4

9:25 a.m.-12:35 p.m.

2 stops21h 10m

Zagreb Franjo Tuđman

Sun 12/4

5:55 a.m.-5:03 p.m.

2 stops41h 08m

C$ 1,155

LondonSofia

YXU - SOF

YXUSOF

London

Thu 19/2

9:25 a.m.-6:00 p.m.

2 stops25h 35m

Sofia

Mon 23/2

6:10 a.m.-8:46 a.m.

2 stops33h 36m

C$ 1,202

LondonSplit

YXU - SPU

YXUSPU

London

Sat 30/5

12:20 p.m.-4:30 p.m.

2 stops22h 10m

Split

Tue 9/6

3:05 p.m.-5:33 p.m.

2 stops32h 28m

C$ 1,378

LondonDubrovnik

YXU - DBV

YXUDBV

London

Wed 15/4

5:40 p.m.-2:20 p.m.

2 stops14h 40m

Dubrovnik

Sun 19/4

6:35 a.m.-8:43 a.m.

2 stops32h 08m

C$ 1,382

LondonAthens

YXU - ATH

YXUATH

London

Fri 22/5

6:00 a.m.-11:10 a.m.

1 stop22h 10m

Athens Eleftherios V.

Mon 25/5

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

1 stop15h 28m

C$ 1,474

LondonZagreb

YXU - ZAG

YXUZAG

London

Sun 22/2

5:40 p.m.-2:00 p.m.

2 stops14h 20m

Zagreb Franjo Tuđman

Thu 26/2

9:50 a.m.-9:21 p.m.

2 stops17h 31m

C$ 1,532

LondonSplit

YXU - SPU

YXUSPU

London

Sat 30/5

6:10 p.m.-8:10 p.m.

2 stops44h 00m

Split

Tue 9/6

4:45 p.m.-5:33 p.m.

3 stops54h 48m

C$ 1,677

LondonSplit

YXU - SPU

YXUSPU

London

Tue 12/5

12:20 p.m.-11:40 a.m.

2 stops17h 20m

Split

Sat 16/5

7:20 a.m.-9:38 p.m.

2 stops20h 18m

C$ 1,728

LondonThessaloniki

YXU - SKG

YXUSKG

London

Sat 21/3

5:40 p.m.-9:00 p.m.

2 stops45h 20m

Thessaloniki Makedonia

Sat 28/3

7:30 p.m.-5:03 p.m.

2 stops27h 33m

C$ 1,915

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 14 results
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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, August is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 598). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 873). 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 4 February 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.

Overall

7.1

Food

6.3

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

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.

Overall

7.1

Food

6.3

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

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.

Overall

7.1

Food

6.3

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

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$ 963, Air Canada can have you in Southeast Europe from London, Ontario in 30h 25m. There are 7897 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?

  • 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, August is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 598). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 873). 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.

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 4 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,087AverageC$ 1,417FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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