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Cheap flights from Calgary to London Heathrow Airport from C$ 449

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or November, booked 83 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Calgary to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to Heathrow
Explore the most affordable flight options available from Calgary to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2026.

Tue 19/58:35 p.m.
YYC
-
LHR
Nonstop8h 30m
WestJet
Wed 27/52:10 p.m.
LHR
-
YYC
Nonstop8h 50m
WestJet
Deal found 24/4C$ 952
Sat 2/511:20 a.m.
YYC
-
LHR
1 stop14h 15m
Multiple Airlines
Fri 15/52:10 p.m.
LHR
-
YYC
Nonstop8h 50m
Multiple Airlines
Deal found 28/4C$ 989
Tue 19/58:35 p.m.
YYC
-
LHR
Nonstop8h 30m
WestJet
Mon 25/51:55 p.m.
LHR
-
YYC
Nonstop8h 50m
WestJet
Deal found 24/4C$ 992
Sat 25/46:00 a.m.
YYC
-
LHR
1 stop17h 30m
Multiple Airlines
Fri 8/52:10 p.m.
LHR
-
YYC
Nonstop8h 50m
Multiple Airlines
Deal found 24/4C$ 993
Thu 28/56:00 a.m.
YYC
-
LHR
1 stop24h 20m
Multiple Airlines
Mon 8/69:25 p.m.
LHR
-
YYC
1 stop19h 35m
Multiple Airlines
Deal found 28/4C$ 994
Tue 19/57:55 p.m.
YYC
-
LHR
1 stop14h 25m
Multiple Airlines
Mon 8/69:25 p.m.
LHR
-
YYC
1 stop19h 35m
Multiple Airlines
Deal found 27/4C$ 1,001
Mon 27/412:45 p.m.
YYC
-
LHR
1 stop14h 15m
Multiple Airlines
Sun 10/52:10 p.m.
LHR
-
YYC
Nonstop8h 50m
Multiple Airlines
Deal found 26/4C$ 1,003

Find flight deals from Calgary to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 April 2026.

Round-trip from

C$ 952

One-way from

C$ 449

Popular in

July

Cheapest in

January

Average price

C$ 1,105

Good round-trip deal

C$ 1,140 or less

Good one-way deal

C$ 416 or less
WestJet
  • WestJet
  • 19/5-27/5
  • Nonstop
  • 17h 20m total
  • Calgary to London
Search Deals
WestJet
  • WestJet
  • 15/10
  • Nonstop
  • 8h 30m total
  • Calgary to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 386 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Calgary to London Heathrow.
Search Deals
Price to beat on a one-way flight from Calgary to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary to Heathrow 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 29 April 2026.
Use the filters below to find and compare flights from Calgary to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 24/9

9:20 a.m.-6:30 a.m.

2 stops14h 10m

London Heathrow

Mon 19/10

9:30 a.m.-1:17 a.m.

2 stops22h 47m

C$ 1,212
Quickest round-trip

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 23/5

12:28 p.m.-10:40 a.m.

2 stops15h 12m

London Heathrow

Sat 30/5

12:15 p.m.-10:37 p.m.

2 stops17h 22m

C$ 1,352

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 8/6

6:45 a.m.-10:40 a.m.

2 stops20h 55m

London Heathrow

Mon 22/6

4:15 p.m.-12:19 p.m.

1 stop27h 04m

C$ 1,374

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 14/7

6:45 a.m.-10:40 a.m.

2 stops20h 55m

London Heathrow

Mon 14/9

12:15 p.m.-10:36 p.m.

2 stops17h 21m

C$ 1,423

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 17/8

6:45 a.m.-10:40 a.m.

2 stops20h 55m

London Heathrow

Mon 31/8

12:15 p.m.-10:36 p.m.

2 stops17h 21m

C$ 1,425

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 9/6

8:30 a.m.-10:40 a.m.

2 stops19h 10m

London Heathrow

Tue 16/6

9:00 a.m.-10:37 p.m.

2 stops20h 37m

C$ 1,425

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 3/10

6:45 a.m.-5:15 p.m.

2 stops27h 30m

London Heathrow

Mon 5/10

6:10 p.m.-9:42 p.m.

2 stops34h 32m

C$ 1,445

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 16/7

7:15 p.m.-9:25 p.m.

3 stops19h 10m

London Heathrow

Wed 16/9

7:45 a.m.-5:30 p.m.

1 stop16h 45m

C$ 1,445

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 13/7

7:15 p.m.-5:55 a.m.

2 stops27h 40m

London Heathrow

Sat 19/9

7:45 a.m.-5:30 p.m.

1 stop16h 45m

C$ 1,445

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 10/6

6:45 a.m.-10:40 a.m.

2 stops20h 55m

London Heathrow

Wed 17/6

7:30 a.m.-10:37 p.m.

2 stops22h 07m

C$ 1,456

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/4

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Calgary to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Calgary 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 Calgary to London Heathrow Airport

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

The price you pay for your flight from Calgary to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of C$ 739). Flying from Calgary to London Heathrow Airport in July is currently the most expensive (average of C$ 1,401). 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 YYC to LHR?

Find hourly flight availability from Calgary to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Calgary to London Heathrow Airport as you normally would.

How much does it cost to fly round-trip from Calgary to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 29 April 2026.
Get a feel of what it's like to fly with KLM,WestJet, andAir Canada from Calgary to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,510 reviews
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
WestJet
7.2
Good
3,328 reviews
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Air Canada
7.1
Good
10,979 reviews
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
7,959 reviews
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
7,931 reviews
KLM
7.8
Good
1,510 reviews
Check prices

Crew

8.4

Entertainment

7.1

Comfort

7.7

Boarding

7.8

Overall

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Calgary to Heathrow. 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 Calgary to London Heathrow?

    Calgary (YYC), located 9.3 km from the city centre, is the airport you fly out of when you book flights from Calgary to London Heathrow. 7 airlines have flights from Calgary to London Heathrow on a regular basis. Booking flights from Calgary to London Heathrow should not be difficult; the airport handles an average of 12 outbound flights to London Heathrow per day.

  • How long is the flight from Calgary to London Heathrow Airport?

    For as low as C$ 1,352, United Airlines can have you in London Heathrow Airport from Calgary in 15h 12m. There are 7009 km between Calgary and London Heathrow Airport.

  • What are the cheapest airlines flying from Calgary to London Heathrow Airport round-trip?

    According to our current data, WestJet (C$ 607), Lufthansa (C$ 738), and Air Canada (C$ 741) offers the cheapest pricing from Calgary to London Heathrow Airport. You may be able to fly from Calgary to London Heathrow Airport for 44% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 208. However, be on the lookout for offers from Air Canada and Lufthansa, as they are both options that can get you from Calgary to London Heathrow Airport for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Calgary to London Heathrow Airport on time: Croatia Airlines (100%), United Airlines (80%), Air Canada (77%).

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

    Looking for the cheapest flight from Calgary to London Heathrow Airport? While on average our users pay C$ 1,708, our data indicates the cheapest price to be C$ 264. The most popular route (Calgary - London Heathrow), is priced around C$ 1,009.

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

    Yes. In addition to deals on Calgary to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Calgary to Heathrow?

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of C$ 739). Flying from Calgary to London Heathrow Airport in July is currently the most expensive (average of C$ 1,401). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Slough
Marlow
Cobham
Leamington Spa
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Calgary to Heathrow on these airlines

Choose from the following airlines for your flight from Calgary to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 29 April 2026.
WestJet flights from Calgary to London Heathrow
Air Canada flights from Calgary to London Heathrow
Lufthansa flights from Calgary to London Heathrow

Top 7 airlines flying from Calgary to Heathrow

Discover the top 7 airlines that operate flights from Calgary to Heathrow. 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 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 607AverageC$ 1,090FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapestC$ 738AverageC$ 1,161FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 741AverageC$ 1,199FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 743AverageC$ 976FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapestC$ 771AverageC$ 1,037FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapestC$ 960AverageC$ 1,230FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapestC$ 1,176AverageC$ 1,253FlexibilityNo cancel feeOn-time77%
Search Iberia 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 Calgary to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Calgary to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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

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

Certainly. Search results for flights to Heathrow from Calgary shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Calgary to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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