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Cheap flights from Calgary to London from $246

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 10/5. 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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0 bags

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Cheap round-trip flights

Air Canada Logo
2:13 pm - 9:40 amYYC-LHR
13h 27m1 stop
Air Canada Logo
2:30 pm - 12:29 amLHR-YYC
16h 59m1 stop
$569Air Canada
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Fri, Oct 31 - Fri, Nov 14
United Airlines Logo
1:55 pm - 6:55 amYYC-LHR
34h 00m2 stops
United Airlines Logo
6:35 am - 9:53 pmLHR-YYC
21h 18m2 stops
$577United Airlines
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Wed, Oct 22 - Tue, Oct 28
United Airlines Logo
6:15 am - 6:40 amYYC-LHR
17h 25m2 stops
United Airlines Logo
6:35 am - 9:53 pmLHR-YYC
22h 18m2 stops
$579United Airlines
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Wed, Jan 21 - Wed, Jan 28
WestJet Logo
9:10 pm - 12:50 pmYYC-LHR
8h 40mnonstop
WestJet Logo
2:50 pm - 4:55 pmLHR-YYC
9h 05mnonstop
$591WestJet
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Sat, Dec 13 - Mon, Dec 22
WestJet Logo
9:10 pm - 12:50 pmYYC-LHR
8h 40mnonstop
WestJet Logo
2:50 pm - 4:55 pmLHR-YYC
9h 05mnonstop
$609WestJet
Find Deal
Tue, Dec 30 - Wed, Jan 7
Logo
1:45 pm - 9:35 amYYC-LHR
12h 50m1 stop
Logo
6:50 am - 4:04 pmLHR-YYC
16h 14m2 stops
$633
Find Deal
Tue, Oct 14 - Tue, Nov 18
Logo
8:00 am - 9:35 amYYC-LHR
18h 35m2 stops
Logo
6:50 am - 4:04 pmLHR-YYC
16h 14m2 stops
$639
Find Deal
Tue, Oct 14 - Tue, Nov 18
British Airways Logo
6:30 am - 10:00 amYYC-LHR
20h 30m1 stop
British Airways Logo
3:25 pm - 11:44 amLHR-YYC
51h 19m2 stops
$660British Airways
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Sat, Nov 15 - Sun, Nov 16
Lufthansa Logo
8:10 pm - 11:50 amYYC-LHR
8h 40mnonstop
Lufthansa Logo
7:30 pm - 3:05 pmLHR-YYC
26h 35m1 stop
$670Lufthansa
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Tue, Oct 14 - Wed, Oct 22
British Airways Logo
6:45 am - 12:45 pmYYC-LHR
23h 00m1 stop
British Airways Logo
6:15 am - 9:54 pmLHR-YYC
22h 39m2 stops
$685British Airways
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Thu, Sep 25 - Wed, Oct 15

United Airlines flights from Calgary to London Heathrow Airport

Our best United Airlines deals on Calgary to London Heathrow Airport flight tickets
United Airlines
Oct 22
YYC1:55 pmCalgary
34h 00m
2 stops
LHR6:55 amLondon Heathrow
Oct 28
LHR6:35 amLondon Heathrow
21h 18m
2 stops
YYC9:53 pmCalgary
$577
Find similar
United Airlines
Jan 21
YYC6:15 amCalgary
17h 25m
2 stops
LHR6:40 amLondon Heathrow
Jan 28
LHR6:35 amLondon Heathrow
22h 18m
2 stops
YYC9:53 pmCalgary
$579
Find similar
United Airlines
Oct 24
YYC6:15 amCalgary
22h 30m
2 stops
LHR11:45 amLondon Heathrow
Nov 2
LHR5:50 amLondon Heathrow
35h 45m
2 stops
YYC11:35 amCalgary
$582
Find similar

Delta flights from Calgary to London Heathrow Airport

Our best Delta deals on Calgary to London Heathrow Airport flight tickets
Delta
Oct 4
YYC6:40 amCalgary
23h 30m
1 stop
LHR1:10 pmLondon Heathrow
Nov 13
LHR6:30 amLondon Heathrow
14h 10m
1 stop
YYC1:40 pmCalgary
$651
Find similar
Delta
Oct 30
YYC7:45 amCalgary
17h 20m
2 stops
LHR7:05 amLondon Heathrow
Nov 11
LHR8:40 amLondon Heathrow
19h 13m
2 stops
YYC8:53 pmCalgary
$675
Find similar
Delta
Oct 5
YYC6:40 amCalgary
23h 30m
1 stop
LHR1:10 pmLondon Heathrow
Oct 15
LHR6:30 amLondon Heathrow
21h 17m
2 stops
YYC8:47 pmCalgary
$676
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Calgary to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated August 26, 2025.
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

Fri 10/31

2:13 pm-9:40 am

1 stop13h 27m

London Heathrow

Fri 11/14

2:30 pm-12:29 am

1 stop16h 59m

$569

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 10/22

1:55 pm-6:55 am

2 stops34h 00m

London Heathrow

Tue 10/28

6:35 am-9:53 pm

2 stops21h 18m

$577

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Wed 1/21

6:15 am-6:40 am

2 stops17h 25m

London Heathrow

Wed 1/28

6:35 am-9:53 pm

2 stops22h 18m

$579

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 12/13

9:10 pm-12:50 pm

Nonstop8h 40m

London Heathrow

Mon 12/22

2:50 pm-4:55 pm

Nonstop9h 05m

$591

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 12/30

9:10 pm-12:50 pm

Nonstop8h 40m

London Heathrow

Wed 1/7

2:50 pm-4:55 pm

Nonstop9h 05m

$609

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 10/14

1:45 pm-9:35 am

1 stop12h 50m

London Heathrow

Tue 11/18

6:50 am-4:04 pm

2 stops16h 14m

$633

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 10/14

8:00 am-9:35 am

2 stops18h 35m

London Heathrow

Tue 11/18

6:50 am-4:04 pm

2 stops16h 14m

$639

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sat 11/15

6:30 am-10:00 am

1 stop20h 30m

London Heathrow

Sun 11/16

3:25 pm-11:44 am

2 stops51h 19m

$660

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 10/14

8:10 pm-11:50 am

Nonstop8h 40m

London Heathrow

Wed 10/22

7:30 pm-3:05 pm

1 stop26h 35m

$670

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 9/25

6:45 am-12:45 pm

1 stop23h 00m

London Heathrow

Wed 10/15

6:15 am-9:54 pm

2 stops22h 39m

$685

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Calgary, with most prices found around $559. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Calgary to London Heathrow Airport during January average around $561.

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 $895. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,152.

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 $883. 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 $1,398.

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 $766 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 $683 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 August 2025, prices for Calgary to London Heathrow Airport flights are approximately 9% 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

$162

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 $162. The best round-trip flight deal from Calgary to London Heathrow Airport found on momondo in the last 72 hours is $643.
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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $450Free CancellationRating
7.2
3,055 reviews
Search WestJet flights
Air CanadaPriceFrom $569Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom $571Free CancellationRating
6.8
7,359 reviews
Search Lufthansa flights
British AirwaysPriceFrom $698Free CancellationRating
6.7
7,309 reviews
Search British Airways flights

  • WestJet Flights From Calgary to London Heathrow Airport

    WestJet flight deals from Calgary to London Heathrow Airport start from $450 round-trip. Over the 7 WestJet flights for this route in a normal week, average airfare is usually $823 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 10,000 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 $800, with deals from around $569 rare but found on momondo. Referenced prices are for round-trip Calgary to London Heathrow Airport flight searches in the last 72 hours.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Luton
Dover
Slough
Milton Keynes
Guildford
Dartford
Crawley
Stansted
Hayes
Chelmsford
Salisbury
Brentwood
Ilford
Folkestone
Swindon
Colchester
Stratford-upon-Avon
Watford

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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