Cheap flights from Calgary to London Heathrow Airport from £251
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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
16 Sep — 23 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or February, booked 73 days in advance, depart on a Saturday or Tuesday and return on a Thursday
Cheap flight deals from Calgary to Heathrow
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
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 17 August 2026.
Sun 1/1113:00 -
1 stop15h 50m
Wed 11/1114:30 -
1 stop29h 44m
Deal found 16/8£488
Wed 21/1020:35 -
Nonstop8h 30m
Tue 27/1014:50 -
Nonstop8h 55m
Deal found 16/8£488
Wed 21/1013:40 -
1 stop16h 25m
Thu 25/206:30 -
1 stop15h 10m
Deal found 14/8£489
Wed 28/1007:45 -
1 stop17h 20m
Sat 7/1106:30 -
1 stop15h 10m
Deal found 15/8£490
Wed 21/1007:45 -
2 stops18h 05m
Sat 27/208:40 -
1 stop13h 00m
Deal found 14/8£492
Mon 12/1006:35 -
1 stop20h 25m
Wed 21/1006:30 -
1 stop13h 50m
Deal found 12/8£493
Mon 12/1016:10 -
2 stops14h 40m
Wed 21/1011:45 -
2 stops15h 25m
Deal found 16/8£493
Sun 11/1015:15 -
1 stop18h 00m
Wed 28/1008:40 -
1 stop12h 00m
Deal found 12/8£494
Wed 21/1012:33 -
1 stop14h 27m
Sun 25/1011:45 -
1 stop32h 55m
Deal found 16/8£495
Sun 11/1016:10 -
2 stops14h 40m
Tue 24/1106:30 -
1 stop15h 10m
Deal found 15/8£496
Sun 11/1016:10 -
2 stops14h 40m
Wed 25/1108:40 -
1 stop13h 00m
Deal found 16/8£496
Best flights from Calgary to Heathrow
Discover carefully curated flight deals from Calgary to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 August 2026.
Sun 11/1016:10 -
2 stops14h 40m
Tue 24/1108:40 -
1 stop13h 00m
Deal found 13/8£494
Tue 20/1012:33 -
1 stop15h 27m
Sun 25/1011:45 -
1 stop32h 55m
Deal found 16/8£495
Fri 20/1114:35 -
2 stops33h 05m
Fri 27/1109:10 -
1 stop18h 07m
Deal found 14/8£512
Fri 9/1015:15 -
1 stop19h 35m
Fri 16/1006:15 -
2 stops16h 00m
Deal found 12/8£553
Sat 17/1013:00 -
1 stop15h 10m
Sat 31/1008:40 -
1 stop12h 00m
Deal found 14/8£562
Mon 12/1016:10 -
2 stops14h 40m
Wed 21/1009:55 -
2 stops17h 15m
Deal found 13/8£494
Sun 13/906:35 -
1 stop23h 30m
Tue 13/1011:45 -
1 stop32h 35m
Deal found 16/8£508
Tue 15/1212:35 -
1 stop14h 25m
Sat 26/1206:30 -
2 stops19h 50m
Deal found 12/8£519
Sat 3/1006:35 -
1 stop23h 30m
Sat 24/1006:30 -
1 stop13h 50m
Deal found 15/8£525
Sun 27/906:35 -
2 stops18h 05m
Sun 4/1008:40 -
2 stops19h 03m
Deal found 13/8£604
Sat 7/1113:40 -
1 stop10h 25m
Tue 17/1106:30 -
2 stops19h 20m
Deal found 13/8£610
Direct flights from Calgary to Heathrow
Explore direct flight options from Calgary to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 August 2026.
Wed 21/1020:35 -
Nonstop8h 30m
Tue 27/1014:50 -
Nonstop8h 55m
Deal found 16/8£488
Thu 22/1020:35 -
Nonstop8h 30m
Sun 1/1114:50 -
Nonstop10h 05m
Deal found 12/8£495
Wed 14/1020:35 -
Nonstop8h 30m
Sat 31/1014:50 -
Nonstop9h 05m
Deal found 12/8£496
Mon 9/1120:10 -
Nonstop8h 40m
Tue 10/1114:50 -
Nonstop10h 05m
Deal found 12/8£502
Thu 8/1020:35 -
Nonstop8h 30m
Thu 22/1014:10 -
Nonstop8h 50m
Deal found 13/8£504
Tue 1/1220:10 -
Nonstop8h 40m
Mon 28/1214:50 -
Nonstop10h 05m
Deal found 13/8£505
Sat 14/1122:10 -
Nonstop7h 40m
Tue 12/114:50 -
Nonstop10h 05m
Deal found 15/8£505
Tue 2/222:10 -
Nonstop7h 40m
Sat 13/214:50 -
Nonstop10h 05m
Deal found 15/8£506
Tue 17/1120:10 -
Nonstop8h 40m
Sun 10/114:50 -
Nonstop10h 05m
Deal found 15/8£507
Thu 19/1121:10 -
Nonstop7h 40m
Sun 29/1114:50 -
Nonstop10h 05m
Deal found 14/8£508
Sun 29/1121:10 -
Nonstop7h 40m
Fri 11/1214:50 -
Nonstop10h 05m
Deal found 15/8£509
Thu 12/1121:10 -
Nonstop7h 40m
Sat 21/1114:50 -
Nonstop10h 05m
Deal found 13/8£512
Last-minute flights from Calgary to Heathrow
Discover last-minute flight deals from Calgary to Heathrow. Data last updated 17 August 2026 and is based on user searches.
Sun 13/906:35 -
1 stop23h 30m
Tue 13/1011:45 -
1 stop32h 35m
Deal found 14/8£505
Mon 14/906:35 -
2 stops18h 05m
Mon 30/1108:40 -
1 stop13h 00m
Deal found 16/8£521
Sat 19/906:35 -
1 stop23h 30m
Thu 8/1008:40 -
1 stop11h 40m
Deal found 15/8£508
Sun 20/915:05 -
1 stop12h 40m
Thu 1/1008:40 -
1 stop11h 40m
Deal found 12/8£520
Mon 21/906:35 -
1 stop23h 30m
Wed 14/1006:30 -
1 stop13h 50m
Deal found 14/8£505
Tue 22/914:15 -
1 stop15h 50m
Thu 1/1006:30 -
1 stop13h 50m
Deal found 12/8£519
Wed 23/914:15 -
1 stop15h 50m
Wed 14/1006:30 -
1 stop13h 50m
Deal found 12/8£497
Thu 24/914:15 -
1 stop15h 50m
Wed 14/1019:15 -
1 stop25h 05m
Deal found 14/8£496
Wed 30/907:45 -
1 stop19h 15m
Thu 15/1006:30 -
1 stop13h 50m
Deal found 16/8£499
Wed 30/907:45 -
1 stop19h 15m
Wed 21/1006:30 -
1 stop13h 50m
Deal found 12/8£506
Wed 30/907:45 -
1 stop19h 15m
Wed 7/1020:55 -
1 stop23h 25m
Deal found 16/8£510
One-way flights from Calgary to Heathrow
Search for one-way flight options from Calgary to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 August 2026.
Tue 10/1118:30 -
1 stop14h 10m
Deal found 14/8£251
Fri 13/1119:30 -
2 stops17h 20m
Deal found 13/8£255
Fri 28/819:00 -
2 stops17h 25m
Deal found 12/8£256
Wed 20/119:30 -
1 stop14h 05m
Deal found 13/8£259
Tue 9/219:30 -
2 stops17h 35m
Deal found 13/8£263
Tue 20/1019:00 -
2 stops18h 05m
Deal found 16/8£264
Thu 8/1020:35 -
Nonstop8h 30m
Deal found 14/8£265
Thu 12/1118:30 -
2 stops18h 35m
Deal found 13/8£266
Wed 20/119:30 -
1 stop14h 05m
Deal found 14/8£267
Sat 10/1020:35 -
Nonstop8h 30m
Deal found 14/8£268
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 17 August 2026.
Customise 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 858,174 searches. Data last updated 17 August 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 return flight
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sun 11/10
16:10-13:50
2 stops14h 40m
London Heathrow
Tue 24/11
08:40-15:40
1 stop13h 00m
£494
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Mon 12/10
16:10-13:50
2 stops14h 40m
London Heathrow
Wed 21/10
09:55-20:10
2 stops17h 15m
£494
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Tue 20/10
12:33-11:00
1 stop15h 27m
London Heathrow
Sun 25/10
11:45-14:40
1 stop32h 55m
£495
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sun 13/9
06:35-13:05
1 stop23h 30m
London Heathrow
Tue 13/10
11:45-13:20
1 stop32h 35m
£508
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Fri 20/11
14:35-05:40
2 stops33h 05m
London Heathrow
Fri 27/11
09:10-21:17
1 stop18h 07m
£512
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Tue 15/12
12:35-09:00
1 stop14h 25m
London Heathrow
Sat 26/12
06:30-20:20
2 stops19h 50m
£519
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sat 3/10
06:35-13:05
1 stop23h 30m
London Heathrow
Sat 24/10
06:30-13:20
1 stop13h 50m
£525
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Fri 9/10
15:15-17:50
1 stop19h 35m
London Heathrow
Fri 16/10
06:15-15:15
2 stops16h 00m
£553
Fastest return journey
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sat 17/10
13:00-11:10
1 stop15h 10m
London Heathrow
Sat 31/10
08:40-14:40
1 stop12h 00m
£562
CalgaryLondon
YYC Calgary - LHR London Heathrow
YYCLHR
Calgary
Sun 27/9
06:35-07:40
2 stops18h 05m
London Heathrow
Sun 4/10
08:40-20:43
2 stops19h 03m
£604
Flights are sorted by cheapest return flights first.
Deals found on 16/8
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.
YYC-LHR
Estimated return 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
More
How far ahead should I book a flight from Calgary to London Heathrow Airport?
To ensure you get the cheapest price possible for a flight from Calgary to London Heathrow Airport, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 £403). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £796). 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 17 August 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 for a return flight from Calgary to London Heathrow Airport?
Airfare is below average for this route at the moment.
Calgary to London Heathrow Airport flights typically cost between £699 and £950 in February.The cheapest return price found within the last 5 days was £487 on Air Canada (4 Feb–12 Feb).
Weekly flight availability from Calgary to London Heathrow Airport
Explore weekly flight availability from Calgary to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 August 2026.
The most flights from YYC to LHR are scheduled on a Tuesday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).
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 138 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 Friday 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 past year, Air Canada have had the lowest number of delays on this route, with just 14% of flights being delayed.
What’s the top stopover airport for flights from Calgary to London Heathrow Airport?
Share of one-stop return flights from Calgary to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Ottawa (YOW) – chosen by Cheapflights users on 50% of one-stop itineraries from Calgary to London Heathrow Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Calgary to London Heathrow Airport?
Average return fare for one-stop flights from Calgary to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Ottawa (YOW) is the most affordable one-stop option, with an average return flight price of £647.
What’s the fastest stopover option from Calgary to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from Calgary to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 12h 35m.
Which airport typically offers the quickest stopover for flights from Calgary to London Heathrow Airport?
Average stopover duration for one-stop one-way flights from Calgary to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Montreal (YUL) offer the fastest connection on this route, with an average stopover time of 1h 33m.
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 17 August 2026.
Get a feel of what it's like to fly with WestJet and Air 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.
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?
If you book a flight to London Heathrow from Calgary, you will be flying from Calgary, which is the city’s only airport. Calgary (YYC) is located 5.8 mi from the center of Calgary. There are 12 flights from Calgary to London Heathrow per day from 2 different airlines.
How long is the flight from Calgary to London Heathrow Airport?
Airlines like KLM, Delta, and United Airlines fly from Calgary to London Heathrow Airport in about 14h 40m. The time it takes to get you to your destination can typically vary by up to 18h 25m. There are 4355 mi between Calgary and London Heathrow Airport. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Calgary to London Heathrow Airport round-trip?
Currently priced at £262, WestJet will fly you from Calgary to London Heathrow Airport and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Air Canada for as low as £379. WestJet is 57% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Calgary to London Heathrow Airport one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as £109. Users have also found prices from £251 and £354 on Air Canada and Lufthansa, respectively.
What are the most reliable airlines from Calgary to London Heathrow Airport?
Consider Croatia Airlines (100%), MEA (86%) or Air Canada (85%) when booking your flight. These represent the most reliable airlines when flying from Calgary to London Heathrow Airport.
What are the cheapest flights from Calgary to London Heathrow Airport?
On average you can expect to pay £490 for a flight from Calgary to London Heathrow Airport. The cheapest flight overall is £244 while the most popular route, (Calgary - London Heathrow) is currently priced at £428.
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 £403). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £796). 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.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 August 2026.
Discover the top 2 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 858,174 searches. Data last updated 17 August 2026.
Find the best flight deals on Cheapflights, where travellers 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?
Deals for Calgary to Heathrow 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 Calgary to Heathrow?
Cheapflights helps you find that perfect flight to Heathrow from Calgary by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Calgary to Heathrow with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Calgary to Heathrow flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Calgary to Heathrow become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Calgary today and book when prices fit your budget.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.