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Cheap flights from Calgary to London Heathrow Airport from C$ 227

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or February, booked 86 days in advance, depart on a Thursday or Sunday and return on a Wednesday

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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 27 October 2025.

Fri 14/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Sun 30/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 27/10C$ 686
Tue 11/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Thu 20/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 26/10C$ 687
Fri 14/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Thu 27/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 27/10C$ 688
Fri 14/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Wed 26/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 27/10C$ 690
Fri 28/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Fri 5/122:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 26/10C$ 694
Thu 20/119:10 p.m.YYC - LHR
Nonstop8h 40mMultiple Airlines
Thu 27/113:15 p.m.LHR - YYC
1 stop31h 45mMultiple Airlines
Deal found 25/10C$ 697
Sat 15/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Tue 25/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 27/10C$ 701
Sun 9/119:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Wed 19/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 26/10C$ 705
Mon 27/1010:10 p.m.YYC - LHR
Nonstop8h 40mMultiple Airlines
Sun 30/113:15 p.m.LHR - YYC
1 stop31h 45mMultiple Airlines
Deal found 24/10C$ 708
Wed 29/1010:10 p.m.YYC - LHR
Nonstop8h 40mWestJet
Sat 29/112:50 p.m.LHR - YYC
Nonstop9h 05mWestJet
Deal found 24/10C$ 709
Wed 29/1010:10 p.m.YYC - LHR
Nonstop8h 40mMultiple Airlines
Sun 30/113:15 p.m.LHR - YYC
1 stop31h 45mMultiple Airlines
Deal found 24/10C$ 711

Cheap 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 27 October 2025.

Round-trip from

C$ 686

One-way from

C$ 227

Popular in

July

Cheapest in

January

Average price

C$ 945

Good round-trip deal

C$ 805 or less

Good one-way deal

C$ 258 or less
WestJet
  • WestJet
  • 14/11-30/11
  • Nonstop
  • 17h 45m total
  • Calgary to London
Search Deals
WestJet
  • WestJet
  • 4/12
  • Nonstop
  • 8h 40m total
  • Calgary to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 369 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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.
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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 27 October 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

Wed 21/1

3:00 p.m.-11:50 a.m.

1 stop13h 50m

London Heathrow

Mon 9/3

11:10 a.m.-12:54 a.m.

1 stop19h 44m

C$ 744

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 30/10

6:45 a.m.-7:05 a.m.

1 stop18h 20m

London Heathrow

Thu 27/11

11:45 a.m.-1:40 p.m.

1 stop32h 55m

C$ 898

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 27/11

9:10 p.m.-12:50 p.m.

Nonstop8h 40m

London Heathrow

Wed 10/12

2:50 p.m.-4:55 p.m.

Nonstop9h 05m

C$ 912

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 9/12

6:35 a.m.-7:05 a.m.

1 stop17h 30m

London Heathrow

Tue 16/12

6:30 a.m.-8:57 p.m.

2 stops21h 27m

C$ 931

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 29/11

12:41 p.m.-10:00 a.m.

1 stop14h 19m

London Heathrow

Mon 8/12

8:40 a.m.-8:57 p.m.

2 stops19h 17m

C$ 931

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 9/12

7:35 a.m.-7:05 a.m.

2 stops16h 30m

London Heathrow

Tue 16/12

8:40 a.m.-8:57 p.m.

2 stops19h 17m

C$ 931

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 22/11

6:35 a.m.-7:05 a.m.

1 stop17h 30m

London Heathrow

Fri 5/12

6:30 a.m.-8:57 p.m.

2 stops21h 27m

C$ 932

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 30/10

6:45 a.m.-7:05 a.m.

1 stop18h 20m

London Heathrow

Wed 26/11

8:40 a.m.-8:53 p.m.

2 stops19h 13m

C$ 932

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 4/12

7:35 a.m.-7:05 a.m.

2 stops16h 30m

London Heathrow

Sun 7/12

6:30 a.m.-8:57 p.m.

2 stops21h 27m

C$ 932

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 3/12

2:45 p.m.-7:05 a.m.

1 stop33h 20m

London Heathrow

Thu 11/12

8:40 a.m.-8:57 p.m.

2 stops19h 17m

C$ 932

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 20 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 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?

Use this chart to determine the optimal time to book a round-trip flight from Calgary to Heathrow. Price data was last updated on 24 October 2025.

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 86 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, February is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of C$ 588). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of C$ 1,094). 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 27 October 2025.

One of the essential ways to save on airfare from Calgary to London Heathrow Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 40% on airfare.

What is the cheapest day to fly from Calgary to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Calgary to Heathrow. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Calgary to London Heathrow Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 27 October 2025.
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
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
WestJet
7.2
Good
3,147 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Air Canada
7.1
Good
10,370 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,532 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,478 reviews
KLM
7.7
Good
1,406 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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. 5 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 11 outbound flights to London Heathrow per day.

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

    For as low as C$ 912, Delta can have you in London Heathrow Airport from Calgary in 8h 40m. There are 7009 km between Calgary and London Heathrow Airport. This flight may include one or multiple stops.

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

    According to our current data, WestJet (C$ 630), Lufthansa (C$ 758), and Air Canada (C$ 777) offers the cheapest pricing from Calgary to London Heathrow Airport. You may be able to fly from Calgary to London Heathrow Airport for 41% less than the average price by searching for these airlines.

  • 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: Air Canada (83%), Aegean Airlines (83%), Thai Airways (83%).

  • 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$ 1,005, our data indicates the cheapest price to be C$ 214. The most popular route (Calgary - London Heathrow), is priced around C$ 654.

  • 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, February is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of C$ 588). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of C$ 1,094). 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
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Southall
Gatwick

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 27 October 2025.
WestJet flights from Calgary to London Heathrow
Air Canada flights from Calgary to London Heathrow
Lufthansa flights from Calgary to London Heathrow

Top 6 airlines flying from Calgary to Heathrow

Discover the top 6 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 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 631AverageC$ 1,026FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Virgin AtlanticCheapestC$ 716AverageC$ 866FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 758AverageC$ 1,101FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 778AverageC$ 1,152FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 790AverageC$ 972FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapestC$ 983AverageC$ 1,212FlexibilityNo cancel feeOn-time70%
Search British Airways 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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