$246+ Cheap flights from Calgary (YYC) to Heathrow (LHR)
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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Calgary to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or February, booked 13 days in advance, depart on a Monday or Thursday and return on a Wednesday
Cheap flight deals from Calgary to Heathrow
Cheapest
Best
Last-minute
One-way
Cheapest flights from Calgary to HeathrowExplore 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 September 15, 2026.
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 September 15, 2026.
This Booking.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:10 pm -
Nonstop7h 40m
Sat 1/92:50 pm -
Nonstop9h 55m
Deal found 9/13![WestJet logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:30 pm -
2 stops37h 05m
Sun 11/222:50 pm -
Nonstop9h 55m
Deal found 9/13![Multiple Airlines logo]()
$625
This Ovago deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:10 pm -
Nonstop7h 40m
Tue 11/172:50 pm -
Nonstop9h 55m
Deal found 9/13![WestJet logo]()
$628
This Ovago deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:10 pm -
Nonstop8h 40m
Wed 11/112:50 pm -
Nonstop9h 55m
Deal found 9/10![WestJet logo]()
$641
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:30 pm -
Nonstop8h 50m
Sun 11/11:25 pm -
Nonstop10h 30m
Deal found 9/10![Air Canada logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:10 pm -
Nonstop7h 40m
Tue 11/246:45 pm -
3 stops28h 05m
Deal found 9/10![Multiple Airlines logo]()
$648
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:00 pm -
1 stop15h 50m
Wed 11/111:00 pm -
2 stops19h 49m
Deal found 9/10![Air Canada logo]()
$650
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:25 pm -
1 stop13h 55m
Wed 10/281:00 pm -
2 stops17h 49m
Deal found 9/14![Air Canada logo]()
$656
Best flights from Calgary to HeathrowDiscover carefully curated flight deals from Calgary to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Calgary to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:33 pm -
1 stop15h 27m
Wed 11/116:30 am -
1 stop15h 10m
Deal found 9/12![Delta logo]()
$665
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:00 am -
2 stops19h 55m
Mon 11/27:50 am -
2 stops22h 03m
Deal found 9/11![United Airlines logo]()
$697
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:35 am -
2 stops17h 35m
Mon 10/266:30 am -
1 stop14h 10m
Deal found 9/11![Delta logo]()
$667
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/198:45 am -
1 stop15h 20m
Sun 2/218:40 am -
1 stop13h 00m
Deal found 9/13![Delta logo]()
$671
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:35 am -
2 stops18h 30m
Wed 11/119:50 am -
2 stops21h 27m
Deal found 9/13![Delta logo]()
$695
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 am -
2 stops21h 25m
Mon 10/264:20 pm -
2 stops25h 15m
Deal found 9/11![United Airlines logo]()
$849
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/301:35 pm -
2 stops17h 10m
Sun 12/68:40 am -
2 stops20h 27m
Deal found 9/14![Delta logo]()
$714
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:27 pm -
2 stops34h 28m
Thu 10/1511:25 am -
1 stop17h 23m
Deal found 9/13![United Airlines logo]()
$864
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/208:45 am -
2 stops16h 00m
Sat 3/68:40 am -
1 stop12h 55m
Deal found 9/14![Delta logo]()
$743
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:35 am -
2 stops19h 25m
Tue 10/1310:55 am -
1 stop19h 15m
Deal found 9/14![Delta logo]()
$816
Last-minute flights from Calgary to HeathrowDiscover last-minute flight deals from Calgary to Heathrow. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Calgary to Heathrow. Data last updated September 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:55 pm -
1 stop31h 25m
Wed 10/142:10 pm -
Nonstop8h 50m
Deal found 9/13![Multiple Airlines logo]()
$662
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:55 pm -
1 stop31h 25m
Fri 10/162:10 pm -
Nonstop8h 50m
Deal found 9/13![Multiple Airlines logo]()
$663
This SmartFares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:35 pm -
Nonstop8h 30m
Wed 12/92:50 pm -
Nonstop9h 55m
Deal found 9/13![WestJet logo]()
$654
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:25 pm -
1 stop13h 55m
Wed 10/281:00 pm -
2 stops17h 49m
Deal found 9/14![Air Canada logo]()
$656
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:35 pm -
Nonstop8h 30m
Tue 12/82:50 pm -
Nonstop9h 55m
Deal found 9/13![WestJet logo]()
$664
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:30 pm -
Nonstop8h 50m
Sun 11/11:25 pm -
Nonstop10h 30m
Deal found 9/10![Air Canada logo]()
$647
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:30 pm -
Nonstop8h 50m
Mon 11/21:25 pm -
Nonstop10h 30m
Deal found 9/10![Air Canada logo]()
$661
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:20 pm -
1 stop16h 30m
Mon 11/92:30 pm -
1 stop16h 04m
Deal found 9/14![Air Canada logo]()
$653
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:33 pm -
1 stop15h 27m
Wed 11/116:30 am -
1 stop15h 10m
Deal found 9/14![Delta logo]()
$665
This Ovago deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:10 pm -
Nonstop8h 40m
Wed 11/112:50 pm -
Nonstop9h 55m
Deal found 9/10![WestJet logo]()
$641
One-way flights from Calgary to HeathrowSearch for one-way flight options from Calgary to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Calgary to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:10 pm -
Nonstop8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![WestJet logo]()
$246
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:35 pm -
Nonstop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![WestJet logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:10 pm -
Nonstop8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![WestJet logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:55 pm -
1 stop12h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 pm -
2 stops31h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:10 pm -
Nonstop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![WestJet logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:10 pm -
Nonstop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![WestJet logo]()
$291
This Ovago deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:10 pm -
Nonstop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![WestJet logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 pm -
2 stops16h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:30 pm -
2 stops39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$295
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $616 (Booking.com) |
One-way from | $246 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $949 |
Good round-trip deal | $796 or less |
Good one-way deal | $341 or less |
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 7,457,451 searches. Data last updated September 15, 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
Cheapest round-trip
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sun 10/11
7:00 pm-1:30 pm
2 stops35h 30m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$319
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sat 10/10
11:45 pm-6:55 pm
3 stops36h 10m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$361
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sat 9/26
6:45 am-2:25 pm
1 stop24h 40m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$504
Quickest round-trip
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Wed 9/23
7:00 am-7:40 am
1 stop17h 40m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$513
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Fri 11/6
1:56 pm-7:15 am
1 stop35h 19m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$513
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sat 10/31
6:45 am-6:50 am
1 stop18h 05m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$513
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sun 9/20
6:45 am-9:05 am
1 stop19h 20m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$514
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Tue 9/29
6:45 am-10:35 am
2 stops20h 50m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$533
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Tue 12/29
7:00 am-9:10 pm
2 stops32h 10m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$539
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Fri 10/30
12:33 pm-10:00 am
1 stop15h 27m
London Heathrow
Wed 11/11
6:30 am-3:40 pm
1 stop15h 10m
$665
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Calgary to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Calgary to Heathrow in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Calgary-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Calgary-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Calgary-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
YYC-LHR
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
Prices
Airlines
Delays
How far ahead should I book a flight from Calgary to London Heathrow Airport?
The best time to book flights from Calgary to London Heathrow Airport is 12 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 $554). Flying from Calgary to London Heathrow Airport in July is currently the most expensive (average of $1,049). 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 September 15, 2026.
When flying from Calgary to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Calgary to London delayed?
About 18% of weekly flights between Calgary and London have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Calgary to London flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Calgary to London flights?
Over the last year, Air Canada have had the lowest number of delays on this route, with just 15% of flights being delayed.
The best insider tips for Calgary to London Heathrow Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to London Heathrow Airport trip
Our travel experts
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 September 15, 2026.
Peruse reviews from past customers who have flown with WestJet,Air Canada, andLufthansa from Calgary to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.2
Comfort
7.1
Entertainment
6.1
Overall
7.2
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreBlaine,Dec 2025
YYC - YVR
Food
6.2
Comfort
7.1
Entertainment
6.1
Overall
7.2
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreBlaine,Dec 2025
YYC - YVR
Food
6.2
Comfort
7.1
Entertainment
6.1
Overall
7.2
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreBlaine,Dec 2025
YYC - YVR
Food
6.2
Comfort
7.1
Entertainment
6.1
Overall
7.2
Boarding
7.4
Crew
7.9
Reviews
1 / 20
2.0
MediocreBlaine,Dec 2025
YYC - YVR
Related info for your journey
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Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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Top 3 airlines flying from Calgary to Heathrow
Discover the top 3 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$361 | Average$977 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$517 | Average$974 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$538 | Average$1,032 | FlexibilityNo cancel fee | On-time76% |