Cheap flights from Calgary to London Heathrow Airport from £138
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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
17 Jan — 24 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in November or January, booked 86 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 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 18 December 2025.
Fri 26/1219:30YYC - LHR
2 stops29h 10mMultiple Airlines
Fri 16/114:50LHR - YYC
Nonstop9h 05mMultiple Airlines
Deal found 17/12£487
Fri 26/1221:10YYC - LHR
Nonstop8h 40mWestJet
Fri 16/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 17/12£518
Tue 30/1221:10YYC - LHR
Nonstop8h 40mWestJet
Tue 13/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 15/12£544
Fri 26/1221:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Sat 17/115:15LHR - YYC
1 stop31h 45mMultiple Airlines
Deal found 15/12£547
Sat 27/1218:25YYC - LHR
Nonstop8h 45mMultiple Airlines
Sun 18/106:00LHR - YYC
2 stops21h 59mMultiple Airlines
Deal found 17/12£556
Sat 27/1218:15YYC - LHR
2 stops32h 05mAir Canada
Sun 18/106:50LHR - YYC
2 stops16h 09mAir Canada
Deal found 17/12£564
Fri 26/1212:45YYC - LHR
1 stop14h 15mBritish Airways
Sat 17/108:20LHR - YYC
1 stop20h 38mBritish Airways
Deal found 15/12£576
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 18 December 2025.
Sun 1/306:30YYC - LHR
2 stops20h 45mDelta
Mon 9/306:30LHR - YYC
1 stop14h 10mDelta
Deal found 15/12£425
Fri 16/106:30YYC - LHR
1 stop17h 35mDelta
Sun 25/108:40LHR - YYC
2 stops19h 14mDelta
Deal found 17/12£443
Thu 5/306:30YYC - LHR
1 stop17h 35mDelta
Mon 9/306:30LHR - YYC
2 stops20h 15mDelta
Deal found 16/12£443
Fri 16/106:30YYC - LHR
1 stop17h 35mDelta
Tue 27/108:40LHR - YYC
2 stops19h 14mDelta
Deal found 17/12£443
Fri 27/206:30YYC - LHR
1 stop17h 35mDelta
Tue 10/308:40LHR - YYC
2 stops18h 05mDelta
Deal found 16/12£443
Fri 13/206:30YYC - LHR
1 stop17h 35mDelta
Sat 21/211:05LHR - YYC
1 stop16h 49mDelta
Deal found 16/12£446
Sat 17/106:30YYC - LHR
2 stops19h 35mDelta
Fri 30/111:05LHR - YYC
1 stop16h 49mDelta
Deal found 16/12£446
Sat 10/106:30YYC - LHR
1 stop17h 35mDelta
Fri 16/111:05LHR - YYC
1 stop16h 49mDelta
Deal found 16/12£446
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 18 December 2025.
Sat 17/121:10YYC - LHR
Nonstop8h 40mWestJet
Fri 30/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 15/12£328
Thu 22/121:10YYC - LHR
Nonstop8h 40mWestJet
Wed 4/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 16/12£329
Sun 25/121:10YYC - LHR
Nonstop8h 40mWestJet
Sun 1/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£332
Wed 18/221:10YYC - LHR
Nonstop8h 40mWestJet
Thu 5/314:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£350
Thu 29/121:10YYC - LHR
Nonstop8h 40mWestJet
Thu 5/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£351
Wed 21/121:10YYC - LHR
Nonstop8h 40mWestJet
Wed 28/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£355
Fri 16/121:10YYC - LHR
Nonstop8h 40mWestJet
Sun 25/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£371
Wed 21/121:10YYC - LHR
Nonstop8h 40mWestJet
Sat 24/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£372
Sat 10/121:10YYC - LHR
Nonstop8h 40mWestJet
Sun 18/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£372
Sat 10/121:10YYC - LHR
Nonstop8h 40mWestJet
Mon 19/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£373
Thu 15/121:10YYC - LHR
Nonstop8h 40mWestJet
Thu 19/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£376
Sat 10/121:10YYC - LHR
Nonstop8h 40mWestJet
Fri 16/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 16/12£377
Last-minute flights from Calgary to Heathrow
Discover last-minute flight deals from Calgary to Heathrow. Data last updated 18 December 2025 and is based on user searches.
Sat 17/121:10YYC - LHR
Nonstop8h 40mWestJet
Fri 30/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 15/12£328
Sat 17/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Fri 30/115:15LHR - YYC
1 stop31h 45mMultiple Airlines
Deal found 16/12£343
Wed 21/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Wed 28/107:15LHR - YYC
1 stop15h 45mMultiple Airlines
Deal found 17/12£348
Wed 21/121:10YYC - LHR
Nonstop8h 40mWestJet
Wed 28/114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 15/12£355
Thu 22/121:10YYC - LHR
Nonstop8h 40mWestJet
Wed 4/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 16/12£329
Thu 22/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Wed 4/215:15LHR - YYC
1 stop31h 30mMultiple Airlines
Deal found 16/12£344
Thu 22/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Mon 2/208:20LHR - YYC
1 stop14h 25mMultiple Airlines
Deal found 16/12£361
Fri 23/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Sat 31/107:20LHR - YYC
1 stop15h 40mMultiple Airlines
Deal found 16/12£357
Sun 25/121:10YYC - LHR
Nonstop8h 40mWestJet
Sun 1/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£332
Thu 29/121:10YYC - LHR
Nonstop8h 40mWestJet
Thu 5/214:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 15/12£351
Fri 30/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Fri 6/208:15LHR - YYC
1 stop14h 30mMultiple Airlines
Deal found 16/12£358
Sat 31/121:10YYC - LHR
Nonstop8h 40mMultiple Airlines
Sat 7/207:20LHR - YYC
1 stop15h 25mMultiple Airlines
Deal found 17/12£354
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 18 December 2025.
Thu 15/121:10YYC - LHR
Nonstop8h 40mWestJet
Deal found 15/12£138
Sat 7/321:10YYC - LHR
Nonstop8h 40mWestJet
Deal found 15/12£138
Tue 10/221:10YYC - LHR
Nonstop8h 40mWestJet
Deal found 15/12£149
Tue 31/320:25YYC - LHR
Nonstop8h 40mWestJet
Deal found 15/12£173
Sat 28/320:25YYC - LHR
Nonstop8h 40mWestJet
Deal found 15/12£185
Sun 25/119:30YYC - LHR
1 stop14h 05mWestJet
Deal found 16/12£212
Sun 8/219:30YYC - LHR
1 stop14h 05mWestJet
Deal found 15/12£213
Fri 27/219:30YYC - LHR
1 stop14h 15mMultiple Airlines
Deal found 17/12£215
Mon 19/119:30YYC - LHR
1 stop14h 05mWestJet
Deal found 16/12£215
Tue 20/119:30YYC - LHR
1 stop15h 50mWestJet
Deal found 16/12£216
Wed 28/119:30YYC - LHR
1 stop14h 05mWestJet
Deal found 14/12£218
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 18 December 2025.
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 18 December 2025.
Use the filters below to find and compare flights from Calgary to London Heathrow Airport that are best for you.
Fly from
Calgary
Fly to
Heathrow
Route
Depart
Return
Price
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Sun 1/3
06:30-10:15
2 stops20h 45m
London Heathrow
Mon 9/3
06:30-14:40
1 stop14h 10m
£425
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Fri 16/1
06:30-07:05
1 stop17h 35m
London Heathrow
Sun 25/1
08:40-20:54
2 stops19h 14m
£443
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Thu 5/3
06:30-07:05
1 stop17h 35m
London Heathrow
Mon 9/3
06:30-20:45
2 stops20h 15m
£443
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Fri 16/1
06:30-07:05
1 stop17h 35m
London Heathrow
Tue 27/1
08:40-20:54
2 stops19h 14m
£443
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Fri 27/2
06:30-07:05
1 stop17h 35m
London Heathrow
Tue 10/3
08:40-20:45
2 stops18h 05m
£443
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Fri 13/2
06:30-07:05
1 stop17h 35m
London Heathrow
Sat 21/2
11:05-20:54
1 stop16h 49m
£446
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Sat 17/1
06:30-09:05
2 stops19h 35m
London Heathrow
Fri 30/1
11:05-20:54
1 stop16h 49m
£446
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Sat 10/1
06:30-07:05
1 stop17h 35m
London Heathrow
Fri 16/1
11:05-20:54
1 stop16h 49m
£446
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Thu 29/1
21:10-12:50
Nonstop8h 40m
£138
CalgaryLondon
YYC - LHR
YYCLHR
Calgary
Mon 19/1
19:30-16:35
1 stop14h 05m
£215
Flights are sorted by cheapest return flights first.
Deals found on 16/12
Showing 1-10 of 19 results
1
2
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 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?
Use this chart to determine the optimal time to book a return flight from Calgary to Heathrow. Price data was last updated on 12 December 2025.
To ensure you get the cheapest price possible for a flight from Calgary to London Heathrow Airport, you should look to book at least 86 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, February is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of £316). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £582). 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 18 December 2025.
A simple way to save on the total cost of your ticket is to fly from Calgary to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight at midday.
How much does it cost for a return flight from Calgary to London Heathrow Airport?
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 18 December 2025.
The most flights from YYC to LHR are scheduled on a Monday (12 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 17% of weekly flights between Calgary and London have experienced delays in the past year, with the average delay time being 132 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 in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday 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 13% 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 33% 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.
Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £537.
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 Ottawa (YOW) have the shortest average one-way travel time for one-stop routes: 11h 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 Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 14m.
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 18 December 2025.
Get a feel of what it's like to fly with WestJet, Air Canada, andLufthansa 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.
I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.
I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.
I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.
I like direct flight from Calgary to Japan. But it’s my fault, I did not decide my seat till last minute. I was in the middle seat in the middle lane, I hesitated asking to go to bathroom.
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?
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 3 different airlines.
How long is the flight from Calgary to London Heathrow Airport?
Airlines like Delta fly from Calgary to London Heathrow Airport in about 20h 45m. The time it takes to get you to your destination can typically vary by up to . There are 4355 mi between Calgary and London Heathrow Airport.
What are the cheapest airlines flying from Calgary to London Heathrow Airport round-trip?
Currently priced at £324, 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. Search Cheapflights for deals from Air Canada and Lufthansa - these airlines can fly you to your destination from £419 and £422, respectively. WestJet is 43% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Calgary to London Heathrow Airport?
Consider Croatia Airlines (100%), United Airlines (81%) or Air Canada (68%) 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 £559 for a flight from Calgary to London Heathrow Airport. The cheapest flight overall is £123 while the most popular route, (Calgary - London Heathrow) is currently priced at £343.
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, February is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of £316). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £582). 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 18 December 2025.
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 858,174 searches. Data last updated 18 December 2025.
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.