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Cheap flights from Calgary to London Heathrow Airport from £137

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or November, booked 72 days in advance, depart on a Thursday 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 28 January 2026.

Mon 2/221:10
YYC
-
LHR
Nonstop8h 40m
WestJet
Fri 6/214:50
LHR
-
YYC
Nonstop8h 50m
WestJet
Deal found 25/1£341
Tue 27/121:10
YYC
-
LHR
Nonstop8h 40m
WestJet
Tue 3/214:50
LHR
-
YYC
Nonstop8h 50m
WestJet
Deal found 27/1£353
Wed 4/218:25
YYC
-
LHR
Nonstop8h 45m
Air Canada
Wed 4/312:00
LHR
-
YYC
1 stop15h 19m
Air Canada
Deal found 27/1£384
Thu 5/220:15
YYC
-
LHR
1 stop32h 35m
Air Canada
Fri 20/213:25
LHR
-
YYC
Nonstop9h 00m
Air Canada
Deal found 27/1£388
Mon 23/219:50
YYC
-
LHR
1 stop33h 00m
Multiple Airlines
Mon 2/320:05
LHR
-
YYC
2 stops31h 34m
Multiple Airlines
Deal found 26/1£391
Thu 29/121:10
YYC
-
LHR
Nonstop8h 40m
Multiple Airlines
Sun 8/207:30
LHR
-
YYC
1 stop15h 15m
Multiple Airlines
Deal found 27/1£392
Thu 5/216:30
YYC
-
LHR
1 stop12h 20m
Multiple Airlines
Fri 27/206:00
LHR
-
YYC
2 stops19h 54m
Multiple Airlines
Deal found 27/1£395

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 28 January 2026.

Round-trip from

£390

One-way from

£137

Popular in

July

Cheapest in

January

Average price

£396

Good round-trip deal

£332 or less

Good one-way deal

£263 or less
Brussels Airlines
  • Brussels Airlines
  • 24/2-3/3
  • 3 total stops
  • 30h 09m total
  • Calgary to London
Search Deals
WestJet
  • WestJet
  • 1/2
  • Nonstop
  • 8h 40m total
  • Calgary to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£99 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 28 January 2026.
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 4/3

07:40-10:00

1 stop19h 20m

London Heathrow

Tue 10/3

08:40-20:45

2 stops18h 05m

£438

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 3/3

06:30-10:15

2 stops20h 45m

London Heathrow

Tue 10/3

06:30-20:45

2 stops20h 15m

£438

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 5/3

06:30-07:05

1 stop17h 35m

London Heathrow

Tue 10/3

11:05-20:45

1 stop15h 40m

£442

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 2/3

06:30-07:05

1 stop17h 35m

London Heathrow

Mon 16/3

20:00-20:45

2 stops30h 45m

£442

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 27/2

06:15-11:05

2 stops21h 50m

London Heathrow

Mon 16/3

10:05-12:26

1 stop32h 21m

£446

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 27/2

06:15-21:20

2 stops32h 05m

London Heathrow

Tue 17/3

12:00-13:08

2 stops31h 08m

£446

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 17/3

06:30-07:05

1 stop18h 35m

London Heathrow

Wed 1/4

06:30-20:45

2 stops21h 15m

£448

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 30/3

07:40-10:00

1 stop19h 20m

London Heathrow

Tue 14/4

12:25-20:40

1 stop15h 15m

£453

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Mon 15/6

20:00-21:40

1 stop18h 40m

£257

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 10/2

21:10-12:50

Nonstop8h 40m

£260

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 16 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

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 23 January 2026.

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 £309). Flying from Calgary to London Heathrow Airport in July is currently the most expensive (average of £577). 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 28 January 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?

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 28 January 2026.
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
3,252 reviews
Check prices

Boarding

7.4

Comfort

7.0

Overall

7.2

Food

6.2

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying
WestJet
7.2
Good
3,252 reviews
WestJet
7.2
Good
3,252 reviews
Check prices

Boarding

7.4

Comfort

7.0

Overall

7.2

Food

6.2

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying
Air Canada
7.1
Good
10,666 reviews
WestJet
7.2
Good
3,252 reviews
Check prices

Boarding

7.4

Comfort

7.0

Overall

7.2

Food

6.2

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying
Lufthansa
6.8
Okay
7,749 reviews
WestJet
7.2
Good
3,252 reviews
Check prices

Boarding

7.4

Comfort

7.0

Overall

7.2

Food

6.2

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
2.0
Mediocre

Blaine,Dec 2025

YYC - YVR

The worst I’ve ever had in 50 years of flying

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 19h 20m. 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 £280, 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 £429 and £465, respectively. WestJet is 50% 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 (60%), Aegean Airlines (60%) or Thai Airways (60%) 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 £452 for a flight from Calgary to London Heathrow Airport. The cheapest flight overall is £179 while the most popular route, (Calgary - London Heathrow) is currently priced at £390.

  • 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, January is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of £309). Flying from Calgary to London Heathrow Airport in July is currently the most expensive (average of £577). 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
Luton
Croydon
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Watford
Colchester
Guildford
Swindon
Chelmsford
Bedford
Crawley
Kingston upon Thames
Eastbourne

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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£280Average£584FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapest£429Average£644FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£465Average£631FlexibilityNo 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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