Which layover airport offers the lowest fares from Calgary to London Heathrow Airport?

Flights via Dallas (DFW) offer the lowest average round-trip price of $809.

Which airline has the best punctuality record on Calgary to London flights?

According to our data, Pascan have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Calgary and London Heathrow Airport?

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Calgary to London Heathrow Airport on average per week?

The number of flights available between Calgary and London Heathrow Airport is 84 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Which layover airport has the shortest connection time from Calgary to London Heathrow Airport?

Dallas (DFW) has the shortest average layover time for this route: 2h 21m.

Which layover airport has the shortest travel time from Calgary to London Heathrow Airport?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 12h 18m.

What airlines fly to London Heathrow Airport?

WestJet, Air Canada and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Calgary according to our data. WestJet is the first choice among our users, with 46% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 5 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How often are flights from Calgary to London delayed?

Historically, on average around 19% of flights between Calgary and London have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Calgary to London Heathrow Airport on average per day?

The number of flights available between Calgary and London Heathrow Airport is 12 per day as of January 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

What is the most punctual flight time for Calgary to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What is the cheapest airline that flies from Calgary to London Heathrow?

WestJet is the most popular carrier operating from Calgary to London Heathrow

When did momondo last update prices for flights from Calgary Airport to London Heathrow Airport?

Prices for flights from Calgary Airport to London Heathrow Airport are updated daily.

How many operators does momondo search for flights from Calgary Airport to London Heathrow Airport?

The number of operators available for flights from Calgary Airport to London Heathrow Airport is 5 as of January 2026.

How old do you have to be to fly from Calgary Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Calgary Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$250 Cheap Flights from Calgary to London Heathrow Airport in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:25 pm - 10:10 am

YYC

LHR

8h 45mnonstop

9:00 am - 8:39 pm

LHR

YYC

18h 39m

2 stops

$554Multiple Airlines

mar., feb. 24 - mar., mar. 3

6:25 pm - 10:10 am

YYC

LHR

8h 45mnonstop

12:00 pm - 8:19 pm

LHR

YYC

15h 19m

1 stop

$556Air Canada

mié., feb. 18 - mié., mar. 4

6:25 pm - 10:10 am

YYC

LHR

8h 45mnonstop

1:25 pm - 11:13 am

LHR

YYC

27h 48m

1 stop

$559Air Canada

lun., feb. 16 - lun., mar. 16

6:25 pm - 10:10 am

YYC

LHR

8h 45mnonstop

11:10 am - 12:14 am

LHR

YYC

20h 04m

1 stop

$564Air Canada

jue., feb. 12 - sáb., feb. 21

5:35 am - 6:30 am

YYC

LHR

17h 55m

1 stop

1:25 pm - 11:44 pm

LHR

YYC

16h 19m

1 stop

$567Air Canada

lun., feb. 16 - lun., mar. 16

12:00 pm - 8:30 am

YYC

LHR

13h 30m

1 stop

11:10 am - 12:14 am

LHR

YYC

20h 04m

1 stop

$572Air Canada

jue., feb. 12 - sáb., feb. 21

6:30 am - 10:15 am

YYC

LHR

20h 45m

2 stops

8:40 am - 8:54 pm

LHR

YYC

19h 14m

2 stops

$600Delta

vie., feb. 6 - mié., feb. 18

12:30 pm - 10:00 am

YYC

LHR

15h 30m

1 stop

10:45 am - 11:02 pm

LHR

YYC

18h 17m

1 stop

$603Virgin Atlantic

mar., mar. 10 - mar., mar. 17

12:40 pm - 10:00 am

YYC

LHR

14h 20m

1 stop

10:45 am - 11:02 pm

LHR

YYC

18h 17m

1 stop

$606Delta

mar., mar. 3 - mié., mar. 18

2:13 pm - 9:20 pm

YYC

LHR

24h 07m

2 stops

12:00 pm - 12:26 pm

LHR

YYC

30h 26m

2 stops

$613United Airlines

jue., feb. 26 - mar., mar. 17

Air Canada flights from Calgary to London Heathrow Airport

Our best Air Canada deals on Calgary to London Heathrow Airport flight tickets

Air Canada

Jan 28

YYC7:30 amCalgary

21h 20m

1 stop

LHR11:50 amLondon Heathrow

Feb 4

LHR3:00 pmLondon Heathrow

9h 00m

YYC5:00 pmCalgary

$555

Air Canada

Feb 18

YYC3:00 pmCalgary

13h 50m

1 stop

LHR11:50 amLondon Heathrow

Mar 4

LHR12:00 pmLondon Heathrow

15h 19m

1 stop

YYC8:19 pmCalgary

$556

Air Canada

Feb 16

YYC6:25 pmCalgary

8h 45m

LHR10:10 amLondon Heathrow

Mar 16

LHR1:25 pmLondon Heathrow

27h 48m

1 stop

YYC11:13 amCalgary

$559

Delta flights from Calgary to London Heathrow Airport

Our best Delta deals on Calgary to London Heathrow Airport flight tickets

Delta

Jan 31

YYC6:30 amCalgary

19h 35m

2 stops

LHR9:05 amLondon Heathrow

Feb 7

LHR8:40 amLondon Heathrow

19h 14m

2 stops

YYC8:54 pmCalgary

$598

Delta

Feb 6

YYC6:30 amCalgary

20h 45m

2 stops

LHR10:15 amLondon Heathrow

Feb 18

LHR8:40 amLondon Heathrow

19h 14m

2 stops

YYC8:54 pmCalgary

$600

Delta

Jan 31

YYC6:30 amCalgary

19h 35m

2 stops

LHR9:05 amLondon Heathrow

Feb 27

LHR6:20 amLondon Heathrow

23h 45m

2 stops

YYC11:05 pmCalgary

$603

momondo Fare Finder

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

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

mar. 2/24

6:25 pm-10:10 am

Nonstop8h 45m

London Heathrow

mar. 3/3

9:00 am-8:39 pm

2 stops18h 39m

$554

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

mié. 2/18

6:25 pm-10:10 am

Nonstop8h 45m

London Heathrow

mié. 3/4

12:00 pm-8:19 pm

1 stop15h 19m

$556

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

lun. 2/16

6:25 pm-10:10 am

Nonstop8h 45m

London Heathrow

lun. 3/16

1:25 pm-11:13 am

1 stop27h 48m

$559

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

jue. 2/12

6:25 pm-10:10 am

Nonstop8h 45m

London Heathrow

sáb. 2/21

11:10 am-12:14 am

1 stop20h 04m

$564

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

lun. 2/16

5:35 am-6:30 am

1 stop17h 55m

London Heathrow

lun. 3/16

1:25 pm-11:44 pm

1 stop16h 19m

$567

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

jue. 2/12

12:00 pm-8:30 am

1 stop13h 30m

London Heathrow

sáb. 2/21

11:10 am-12:14 am

1 stop20h 04m

$572

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

vie. 2/6

6:30 am-10:15 am

2 stops20h 45m

London Heathrow

mié. 2/18

8:40 am-8:54 pm

2 stops19h 14m

$600

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

mar. 3/10

12:30 pm-10:00 am

1 stop15h 30m

London Heathrow

mar. 3/17

10:45 am-11:02 pm

1 stop18h 17m

$603

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

mar. 3/3

12:40 pm-10:00 am

1 stop14h 20m

London Heathrow

mié. 3/18

10:45 am-11:02 pm

1 stop18h 17m

$606

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

jue. 2/26

2:13 pm-9:20 pm

2 stops24h 07m

London Heathrow

mar. 3/17

12:00 pm-12:26 pm

2 stops30h 26m

$613

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Calgary to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Calgary, with most prices found around $544. If you’re not able to fly to London Heathrow Airport in January, then November is your next best option. Flight prices from Calgary to London Heathrow Airport during November average around $555.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $888. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,202.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Calgary to London Heathrow Airport in the evening for as low as $904. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,326.

What is the cheapest Calgary to London Heathrow flight route?

Fly from Calgary to London Heathrow for the best Calgary - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Calgary for as low as $711 on momondo.

What cabin class options are available on Calgary to London Heathrow flights?

There are 3 cabin classes available to choose from on Calgary to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Calgary to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Calgary to London Heathrow Airport flights are approximately 4% cheaper when compared to flights at the same time last year.

When to book flights from Calgary to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Calgary to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Calgary to London Heathrow Airport (YYC to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Calgary to London Heathrow Airport

Best Price Found	$221
Fastest flight time	8h 30m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Calgary in the past 72 hours is $221. The best round-trip flight deal from Calgary to London Heathrow Airport found on momondo in the last 72 hours is $830.

The fastest flight from Calgary to London Heathrow Airport takes 8h 30m

Direct flights go from Calgary to London Heathrow Airport every day.

Search flight deals

How far is Calgary to London Heathrow by plane?
Calgary and London Heathrow are 4360.9 mi apart from one another. By plane, this route typically takes 8h 30m.
When did momondo last update prices for flights from Calgary Airport to London Heathrow Airport?
Prices for flights from Calgary Airport to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Calgary Airport to London Heathrow Airport?
The number of operators available for flights from Calgary Airport to London Heathrow Airport is 5 as of January 2026.
How old do you have to be to fly from Calgary Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Calgary Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Calgary to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Calgary to London Heathrow Airport is Boeing 787-8 Dreamliner (83.52% of total bookings). The next most popular plane models are Airbus A330-300 (6.56%), Boeing 787-9 Dreamliner (3.95%), and Boeing 777-300ER (3.62%).
What is the most popular airline from Calgary to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Calgary to London Heathrow Airport is WestJet, representing 45% of all bookings. The subsequent popular airlines are Air Canada at 34%, Lufthansa at 15%, and British Airways at 3%.

Best airlines flying from Calgary to London Heathrow Airport

Compare and see reviews for airlines that fly from Calgary to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $465	Free Cancellation	Rating 7.2 3,249 reviews	Search WestJet flights
Air Canada	PriceFrom $540	Free Cancellation	Rating 7.1 10,656 reviews	Search Air Canada flights
Lufthansa	PriceFrom $598	Free Cancellation	Rating 6.8 7,747 reviews	Search Lufthansa flights
British Airways	PriceFrom $698	Free Cancellation	Rating 6.7 7,700 reviews	Search British Airways flights
Iberia	PriceFrom $811	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights

WestJet Flights From Calgary to London Heathrow Airport
WestJet flight deals from Calgary to London Heathrow Airport start from $465 round-trip. Over the 7 WestJet flights for this route in a normal week, average airfare is usually $876 round-trip - but some users have found much cheaper deals with momondo.
Air Canada Flights From Calgary to London Heathrow Airport
Air Canada (7.1/10 from 10,660 reviews) operates around 7 flights from Calgary to London Heathrow Airport in any given week. The average Air Canada airfare for this route is around $855, with deals from around $540 rare but found on momondo. Referenced prices are for round-trip Calgary to London Heathrow Airport flight searches in the last 72 hours.

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Guildford

Crawley

Wembley

Dartford

Hayes

Stratford-upon-Avon

Brentwood

Harrow

Watford

Cobham

Folkestone

Romford

Stansted

Croydon

Why use momondo?

Why should I use momondo to find a flight deal from Calgary to London?

Finding the right flight to London from Calgary is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Calgary to London with flexible booking policies on momondo?

All flight searches from Calgary to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Calgary to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Calgary to London.

I’m not ready to book a flight from Calgary to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Calgary to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Heathrow Airport trip

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Cheap flights from Calgary to London from $250

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Calgary to London departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Calgary to London Heathrow Airport

Our best Air Canada deals on Calgary to London Heathrow Airport flight tickets

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Our best Delta deals on Calgary to London Heathrow Airport flight tickets

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Use the filters below to find and compare flights from Calgary to London Heathrow Airport that are best for you.

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How to get the cheapest flight ticket from Calgary to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $888. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,202.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Calgary to London Heathrow flight route?

Fly from Calgary to London Heathrow for the best Calgary - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Calgary to London Heathrow flights?

There are 3 cabin classes available to choose from on Calgary to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Calgary to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Calgary to London Heathrow Airport flights are approximately 4% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Calgary to London Heathrow?

WestJet is the most popular carrier operating from Calgary to London Heathrow

What airlines fly to London Heathrow Airport?

How often are flights from Calgary to London delayed?

Historically, on average around 19% of flights between Calgary and London have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

What is the most punctual flight time for Calgary to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Calgary to London flights?

According to our data, Pascan have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Calgary and London Heathrow Airport?

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Calgary to London Heathrow Airport?

Flights via Dallas (DFW) offer the lowest average round-trip price of $809.

Which layover airport has the shortest travel time from Calgary to London Heathrow Airport?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 12h 18m.

Which layover airport has the shortest connection time from Calgary to London Heathrow Airport?

Dallas (DFW) has the shortest average layover time for this route: 2h 21m.

How many flights depart from Calgary to London Heathrow Airport on average per day?

The number of flights available between Calgary and London Heathrow Airport is 12 per day as of January 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

How many flights depart from Calgary to London Heathrow Airport on average per week?

The number of flights available between Calgary and London Heathrow Airport is 84 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

When to book flights from Calgary to London Heathrow Airport

Cheap Calgary to London Heathrow Airport (YYC to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Calgary to London Heathrow Airport

Best Price Found

Fastest flight time

Direct flights

How far is Calgary to London Heathrow by plane?

When did momondo last update prices for flights from Calgary Airport to London Heathrow Airport?

How many operators does momondo search for flights from Calgary Airport to London Heathrow Airport?

How old do you have to be to fly from Calgary Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular plane model from Calgary to London Heathrow Airport?

What is the most popular airline from Calgary to London Heathrow Airport?

Best airlines flying from Calgary to London Heathrow Airport

Compare and see reviews for airlines that fly from Calgary to London Heathrow Airport with momondo

WestJet Flights From Calgary to London Heathrow Airport

Air Canada Flights From Calgary to London Heathrow Airport

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Calgary to London?

Can I find flights from Calgary to London with flexible booking policies on momondo?

How can momondo help me find flights from Calgary to London?

I’m not ready to book a flight from Calgary to London right now. Can momondo alert me if prices change?