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Cheap flights from London, ON to Southeast Europe from C$ 781

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ATH
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Southeast Europe

Enter your travel dates to find the best prices.

Best flights from London to Southeast Europe
Discover carefully curated flight deals from London to Southeast Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 December 2025.

Sat 24/19:50 a.m.YXU - ATH
2 stops23h 55mAir Canada
Wed 28/17:05 a.m.ATH - YXU
2 stops21h 16mAir Canada
Deal found 15/12C$ 938
Sat 30/56:10 p.m.YXU - SPU
2 stops44h 00mMultiple Airlines
Tue 9/65:15 p.m.SPU - YXU
2 stops30h 18mMultiple Airlines
Deal found 16/12C$ 1,309
Sat 30/56:10 p.m.YXU - SPU
2 stops44h 00mSWISS
Tue 9/64:45 p.m.SPU - YXU
3 stops54h 48mSWISS
Deal found 17/12C$ 1,685
Sun 8/25:10 a.m.YXU - OTP
2 stops25h 55mAir Canada
Thu 12/26:30 a.m.OTP - YXU
2 stops21h 51mAir Canada
Deal found 15/12C$ 1,025
Sat 9/512:20 p.m.YXU - ZAG
2 stops18h 15mAir Canada
Wed 13/51:20 p.m.ZAG - YXU
2 stops14h 18mAir Canada
Deal found 15/12C$ 1,207
Sun 10/56:00 a.m.YXU - SOF
2 stops23h 05mAir Canada
Thu 14/56:10 a.m.SOF - YXU
2 stops36h 33mAir Canada
Deal found 15/12C$ 1,454
Sun 10/59:30 a.m.YXU - SPU
2 stops22h 35mAir Canada
Thu 14/58:15 a.m.SPU - YXU
2 stops19h 23mAir Canada
Deal found 16/12C$ 1,513
Sun 3/56:00 a.m.YXU - SPU
2 stops26h 05mAir Canada
Thu 7/58:15 a.m.SPU - YXU
2 stops30h 38mAir Canada
Deal found 15/12C$ 1,612
Wed 4/29:50 a.m.YXU - SKG
2 stops28h 10mAir Canada
Sun 8/27:40 a.m.SKG - YXU
2 stops40h 25mAir Canada
Deal found 15/12C$ 1,702

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 18 December 2025.

Round-trip from

C$ 938

One-way from

C$ 781

Popular in

September

Cheapest in

May

Average price

C$ 1,430
Air Canada
  • Air Canada
  • 24/1-28/1
  • 4 total stops
  • 45h 11m total
  • London to Southeast Europe
Search Deals
31/1
  • 31/1
  • 2 total stops
  • 17h 10m total
  • London to Southeast Europe
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 2025.
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

LondonAthens

YXU - ATH

YXUATH

London

Sat 24/1

9:50 a.m.-4:45 p.m.

2 stops23h 55m

Athens Eleftherios V.

Wed 28/1

7:05 a.m.-9:21 p.m.

2 stops21h 16m

C$ 938

LondonBucharest

YXU - OTP

YXUOTP

London

Sun 8/2

5:10 a.m.-2:05 p.m.

2 stops25h 55m

Bucharest Otopeni Intl

Thu 12/2

6:30 a.m.-9:21 p.m.

2 stops21h 51m

C$ 1,025

LondonZagreb

YXU - ZAG

YXUZAG

London

Sat 9/5

12:20 p.m.-12:35 p.m.

2 stops18h 15m

Zagreb Franjo Tuđman

Wed 13/5

1:20 p.m.-9:38 p.m.

2 stops14h 18m

C$ 1,207

LondonSplit

YXU - SPU

YXUSPU

London

Sat 30/5

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

2 stops44h 00m

Split

Tue 9/6

5:15 p.m.-5:33 p.m.

2 stops30h 18m

C$ 1,309

LondonSofia

YXU - SOF

YXUSOF

London

Sun 10/5

6:00 a.m.-12:05 p.m.

2 stops23h 05m

Sofia

Thu 14/5

6:10 a.m.-11:43 a.m.

2 stops36h 33m

C$ 1,454

LondonSplit

YXU - SPU

YXUSPU

London

Sun 10/5

9:30 a.m.-2:05 p.m.

2 stops22h 35m

Split

Thu 14/5

8:15 a.m.-9:38 p.m.

2 stops19h 23m

C$ 1,513

LondonSplit

YXU - SPU

YXUSPU

London

Sun 3/5

6:00 a.m.-2:05 p.m.

2 stops26h 05m

Split

Thu 7/5

8:15 a.m.-8:53 a.m.

2 stops30h 38m

C$ 1,612

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$ 1,685

LondonThessaloniki

YXU - SKG

YXUSKG

London

Wed 4/2

9:50 a.m.-9:00 p.m.

2 stops28h 10m

Thessaloniki Makedonia

Sun 8/2

7:40 a.m.-5:05 p.m.

2 stops40h 25m

C$ 1,702

LondonAthens

YXU - ATH

YXUATH

London

Sat 31/1

5:40 p.m.-5:50 p.m.

2 stops17h 10m

C$ 781

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 11 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, June is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 504). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 880). 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 18 December 2025.
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
10,534 reviews
Check prices

Food

6.3

Entertainment

6.8

Comfort

7.1

Crew

7.8

Overall

7.1

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,534 reviews
Air Canada
7.1
Good
10,534 reviews
Check prices

Food

6.3

Entertainment

6.8

Comfort

7.1

Crew

7.8

Overall

7.1

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Lufthansa
6.8
Okay
7,635 reviews
Air Canada
7.1
Good
10,534 reviews
Check prices

Food

6.3

Entertainment

6.8

Comfort

7.1

Crew

7.8

Overall

7.1

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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$ 938, Air Canada can have you in Southeast Europe from London, Ontario in 23h 55m. 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 - Athens Eleftherios V. or London - Dubrovnik, London - Split 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, June is the cheapest month in which you can book a flight from London, Ontario to Southeast Europe (average of C$ 504). Flying from London, Ontario to Southeast Europe in December is currently the most expensive (average of C$ 880). 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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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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,097AverageC$ 1,430FlexibilityNo 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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