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Cheap flights from Calgary to London Heathrow Airport from £117

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
11 Dec — 18 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 Saturday or Wednesday and return on a Monday

Find 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 11 November 2025.

Wed 12/1109:00YYC - LHR
1 stop17h 20mMultiple Airlines
Wed 26/1108:30LHR - YYC
1 stop13h 55mMultiple Airlines
Deal found 9/11£358
Mon 1/1221:10YYC - LHR
Nonstop8h 40mWestJet
Wed 4/314:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 10/11£362
Fri 21/1121:10YYC - LHR
Nonstop8h 40mWestJet
Fri 5/1214:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 9/11£364
Sun 7/1221:10YYC - LHR
Nonstop8h 40mWestJet
Wed 10/1214:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 8/11£365
Sun 7/1221:10YYC - LHR
Nonstop8h 40mWestJet
Thu 11/1214:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 8/11£366
Wed 12/1121:10YYC - LHR
Nonstop8h 40mWestJet
Wed 26/1114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 9/11£368
Fri 14/1121:10YYC - LHR
Nonstop8h 40mWestJet
Fri 21/1114:50LHR - YYC
Nonstop9h 05mWestJet
Deal found 9/11£371
Tue 25/1121:10YYC - LHR
Nonstop8h 40mWestJet
Thu 19/314:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 10/11£371
Tue 25/1121:10YYC - LHR
Nonstop8h 40mWestJet
Sun 15/314:50LHR - YYC
Nonstop8h 50mWestJet
Deal found 10/11£372
Fri 14/1106:00YYC - LHR
1 stop22h 50mMultiple Airlines
Fri 21/1109:00LHR - YYC
2 stops21h 44mMultiple Airlines
Deal found 9/11£377
Fri 14/1119:50YYC - LHR
1 stop33h 00mMultiple Airlines
Wed 3/1206:00LHR - YYC
2 stops24h 44mMultiple Airlines
Deal found 9/11£378

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 11 November 2025.

Round-trip from

£350

One-way from

£117

Popular in

July

Cheapest in

January

Average price

£469

Good round-trip deal

£459 or less

Good one-way deal

£114 or less
WestJet
  • WestJet
  • 3/2-1/3
  • Nonstop
  • 17h 30m total
  • Calgary to London
Search Deals
WestJet
  • WestJet
  • 12/1
  • Nonstop
  • 8h 40m total
  • Calgary to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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.
Search Deals

Cheapflights Fare Finder

 
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 11 November 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

Fri 5/12

15:30-21:20

2 stops22h 50m

London Heathrow

Mon 15/12

16:00-11:35

2 stops26h 35m

£443

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 5/12

15:30-07:25

1 stop32h 55m

London Heathrow

Wed 10/12

09:10-19:20

1 stop17h 10m

£443

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 5/12

12:37-05:55

1 stop34h 18m

London Heathrow

Thu 11/12

09:10-19:20

1 stop17h 10m

£443

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 19/2

06:45-06:40

2 stops16h 55m

London Heathrow

Tue 24/2

09:10-11:35

2 stops33h 25m

£447

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 19/2

12:37-07:55

1 stop12h 18m

London Heathrow

Mon 23/2

10:05-12:26

1 stop33h 21m

£447

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 17/2

06:15-09:40

1 stop20h 25m

London Heathrow

Tue 24/2

12:50-11:35

2 stops29h 45m

£447

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 4/2

12:37-11:15

1 stop15h 38m

London Heathrow

Mon 2/3

16:20-11:35

2 stops26h 15m

£447

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 18/2

15:30-21:20

2 stops22h 50m

London Heathrow

Sun 1/3

07:40-11:35

1 stop34h 55m

£447

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 4/2

12:37-10:50

2 stops15h 13m

London Heathrow

Wed 11/2

07:30-19:20

2 stops18h 50m

£453

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 20/1

06:15-11:15

2 stops22h 00m

London Heathrow

Tue 14/4

16:00-11:37

2 stops26h 37m

£484

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 22 results
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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

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 7 November 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 £318). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £594). 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 11 November 2025.

A simple way to save on the total cost of your ticket is to fly from Calgary to London Heathrow Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at midday.

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 11 November 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.
WestJet
7.2
Good
3,159 reviews
Check prices

Overall

7.2

Boarding

7.4

Crew

7.9

Comfort

7.1

Entertainment

6.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

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.
WestJet
7.2
Good
3,159 reviews
WestJet
7.2
Good
3,159 reviews
Check prices

Overall

7.2

Boarding

7.4

Crew

7.9

Comfort

7.1

Entertainment

6.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

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.
Air Canada
7.1
Good
10,437 reviews
WestJet
7.2
Good
3,159 reviews
Check prices

Overall

7.2

Boarding

7.4

Crew

7.9

Comfort

7.1

Entertainment

6.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

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.
Lufthansa
6.8
Okay
7,565 reviews
WestJet
7.2
Good
3,159 reviews
Check prices

Overall

7.2

Boarding

7.4

Crew

7.9

Comfort

7.1

Entertainment

6.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

YYC - NRT

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 11 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 United Airlines fly from Calgary to London Heathrow Airport in about 22h 50m. 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 £329, 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 £425 and £428, 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 Air Canada (88%), Aegean Airlines (88%) or Thai Airways (88%) 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 £326 for a flight from Calgary to London Heathrow Airport. The cheapest flight overall is £97 while the most popular route, (Calgary - London Heathrow) is currently priced at £353.

  • 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 holiday 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 £318). Flying from Calgary to London Heathrow Airport in August is currently the most expensive (average of £594). 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
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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.

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 858,174 searches. Data last updated 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£329Average£572FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapest£425Average£677FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£428Average£592FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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.

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