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$339+ Cheap flights from Calgary (YYC) to Heathrow (LHR)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Calgary to London Heathrow are usually found in January or February, booked 41 days in advance, depart on a Thursday or Friday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$707
(SWISS)

One-way from

$339
(WestJet)

Popular in

July

Cheapest in

January

Average price

$933

Good round-trip deal

$817 or less

Good one-way deal

$356 or less
From Calgary to London Heathrow
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One-way flight from Calgary to London Heathrow
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Highest demand for flights based on searches. 20% potential increase in price ($193 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Calgary to London Heathrow.
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Price to beat on a one-way flight from Calgary to London Heathrow.
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Find flight deals from Calgary to Heathrow

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 June 12, 2025.

This SWISS deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/221:30 pmYYC - LHR
2 stops22h 45mSWISS
Sun 12/76:00 amLHR - YYC
2 stops23h 08mSWISS
Deal found 6/9$707
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/274:30 pmYYC - LHR
1 stop12h 20mLufthansa
Sat 12/61:25 pmLHR - YYC
2 stops34h 13mLufthansa
Deal found 6/10$711
This British Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/131:27 pmYYC - LHR
1 stop14h 03mBritish Airways
Sun 6/2212:00 pmLHR - YYC
1 stop16h 57mBritish Airways
Deal found 6/10$716
This Austrian Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:00 amYYC - LHR
2 stops18h 35mAustrian Airlines
Thu 10/162:05 pmLHR - YYC
2 stops18h 07mAustrian Airlines
Deal found 6/10$717
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:29 pmYYC - LHR
1 stop12h 41mAmerican Airlines
Sat 9/2012:00 pmLHR - YYC
1 stop16h 50mAmerican Airlines
Deal found 6/9$719
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:05 pmYYC - LHR
2 stops30h 50mUnited Airlines
Tue 10/146:50 amLHR - YYC
2 stops35h 48mUnited Airlines
Deal found 6/10$724
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2911:19 amYYC - LHR
1 stop12h 31mMultiple Airlines
Fri 7/49:15 amLHR - YYC
2 stops19h 42mMultiple Airlines
Deal found 6/12$740
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:40 amYYC - LHR
2 stops20h 50mDelta
Wed 9/1011:45 amLHR - YYC
1 stop32h 35mDelta
Deal found 6/10$747
This WestJet deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:15 pmYYC - LHR
1 stop12h 30mWestJet
Thu 10/232:10 pmLHR - YYC
Nonstop8h 50mWestJet
Deal found 6/12$785
This Virgin Atlantic deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/242:45 pmYYC - LHR
1 stop15h 25mVirgin Atlantic
Sun 9/76:30 amLHR - YYC
2 stops21h 13mVirgin Atlantic
Deal found 6/9$798
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/128:10 pmYYC - LHR
Nonstop8h 40mAir Canada
Thu 6/192:05 pmLHR - YYC
1 stop15h 36mAir Canada
Deal found 6/10$803
This Finnair deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/268:00 amYYC - LHR
2 stops29h 00mFinnair
Thu 12/112:10 pmLHR - YYC
2 stops52h 13mFinnair
Deal found 6/9$808

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 2,558,603 searches. Data last updated June 12, 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

Sat 11/22

1:30 pm-7:15 pm

2 stops22h 45m

London Heathrow

Sun 12/7

6:00 am-10:08 pm

2 stops23h 08m

$707

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 11/27

4:30 pm-11:50 am

1 stop12h 20m

London Heathrow

Sat 12/6

1:25 pm-4:38 pm

2 stops34h 13m

$711

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 9/4

12:47 pm-10:50 am

1 stop15h 03m

London Heathrow

Sat 9/20

12:00 pm-9:50 pm

1 stop16h 50m

$716

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 9/23

8:00 am-9:35 am

2 stops18h 35m

London Heathrow

Thu 10/16

2:05 pm-1:12 am

2 stops18h 07m

$717

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 9/5

1:29 pm-9:10 am

1 stop12h 41m

London Heathrow

Sat 9/20

12:00 pm-9:50 pm

1 stop16h 50m

$719

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 9/2

5:05 pm-6:55 am

2 stops30h 50m

London Heathrow

Tue 10/14

6:50 am-11:38 am

2 stops35h 48m

$724

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Sun 6/29

11:19 am-6:50 am

1 stop12h 31m

London Heathrow

Fri 7/4

8:20 am-9:57 pm

1 stop20h 37m

$735

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Tue 8/26

6:40 am-10:30 am

2 stops20h 50m

London Heathrow

Wed 9/10

11:45 am-1:20 pm

1 stop32h 35m

$747

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Thu 9/18

6:45 am-2:25 pm

1 stop24h 40m

London Heathrow

Wed 9/24

6:30 am-9:50 pm

2 stops22h 20m

$761

CalgaryLondon

YYC - LHR

YYCLHR

Calgary

Fri 9/19

6:15 pm-1:45 pm

1 stop12h 30m

London Heathrow

Thu 10/23

2:10 pm-4:00 pm

Nonstop8h 50m

$785

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 32 results
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The best insider tips for Calgary to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to London Heathrow Airport trip
Airports
YYC

Calgary Airport offers a convenient LINK shuttle between terminals, making it easy to navigate during peak travel times.

Read more about YYCby Jenna Scatena
LHR

Take the Heathrow Express for the fastest route into central London, arriving at Paddington Station.

Read more about LHRby Ramsey Qubein
Our travel experts
Jenna Scatena

Jenna Scatena

Expert on YYC

Jenna Scatena

Jenna Scatena

Journalist and Travel Writer, Jenna Scatena is an award-winning travel writer with a love for sharing stories and exploring new places, especially by Vespa. Though she's from San Francisco, she has spent a significant chunk of her vacation days over the last decade eating her way through Texas and sleeping in hotels around the world—especially in California, the Middle East, and Europe.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 June 9, 2025.

The best time to book flights from Calgary to London Heathrow Airport is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Calgary to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of $661). Flying from Calgary to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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 June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Calgary to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.

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 December 16, 2024.

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

Weekly flight availability from Calgary to London Heathrow Airport

Explore weekly flight availability from Calgary to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from YYC to LHR are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Calgary to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 10 flights from Calgary to London Heathrow per day from 3 different airlines.

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

    According to our current data, SWISS ($707), Lufthansa ($711), and British Airways ($716) offers the cheapest pricing from Calgary to London Heathrow Airport. Users have found that SWISS is 8% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Calgary to London Heathrow Airport one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $339. Users have also found prices from $402 and $454 on United Airlines and SWISS, respectively.

  • What are the most reliable airlines from Calgary to London Heathrow Airport?

    Consider Croatia Airlines (100%), Air Canada (93%) or Aegean Airlines (93%) 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 $1,686 for a flight from Calgary to London Heathrow Airport. The cheapest flight overall is $346 while the most popular route, (Calgary - London Heathrow) is currently priced at $618.

  • 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, November is the cheapest month in which you can book a flight from Calgary to London Heathrow Airport (average of $661). Flying from Calgary to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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

Traveling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
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Harrow
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Gatwick
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Alternative routes for Calgary to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Edmonton to Heathrow flights
Calgary to Gatwick flights

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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$450Average$768FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$569Average$886FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$572Average$849FlexibilityNo cancel feeOn-time76%

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