Find cheap flights to London Heathrow Airport

LHR

Find cheap flights to London Heathrow Airport

Round-trip
Economy
Boston (BOS)
London Heathrow
Wed. 5/8
Wed. 12/8
Any month
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Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

Good to know

Low season

February Best time to beat the crowds (3% less expensive on average)

High season

July Most popular time to fly (12% more expensive on average)

Average price of a round-trip

C$ 648 (avg. price over the last 2 weeks)

Good deal for a round-trip

C$ 537 or less

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found round-trip tickets to London Heathrow Airport for the following prices or less: From Calgary C$ 759, from Ottawa C$ 796, from Kelowna C$ 941
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be June and July. The cheapest month to fly to London Heathrow Airport is February.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking London Heathrow Airport flights

How long is the flight to London Heathrow Airport?

What is the cheapest flight to London Heathrow Airport?

Which airlines fly to London Heathrow Airport?

How far is London Heathrow Airport Airport from central London?

How does KAYAK find such low prices on flights to London Heathrow Airport?

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What is the Hacker Fare option on flights to London Heathrow Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London Heathrow Airport?

Top 4 airlines flying to London Heathrow

Scores according to KAYAK customer reviews

7.5
Aeromexico
Overall score based on 9,280 reviews
7.6
Boarding
7.5
Comfort
7.9
Crew
7.3
Entertainment
7.1
Food
Airline reviews
Read more about Aeromexico

Book Cheap London Heathrow Airport Plane Tickets (Round-trip)

Airports
Origin
Vancouver
C$ 624
only
C$ 624
Edmonton
C$ 755
only
C$ 755
Calgary
C$ 691
only
C$ 691
Montreal
C$ 528
only
C$ 528
Toronto
C$ 436
only
C$ 436
Destination
London
C$ 436
only
C$ 436
Tue., 20 Oct.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 20m
Mon., 23 Nov.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
11h 05m
C$ 436
Trip: 35 days
Based on null reviews
Tue., 8 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 40m
Tue., 22 Sep.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
20h 55m
C$ 472
Trip: 15 days
Based on null reviews
Tue., 8 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
13h 30m
Tue., 22 Sep.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
30h 20m
C$ 501
Trip: 15 days
Based on null reviews
Mon., 19 Oct.
YVR
Vancouver Airport
LHR
London Heathrow Airport
32h 45m
Thu., 5 Nov.
LHR
London Heathrow Airport
YVR
Vancouver Airport
31h 24m
C$ 624
Trip: 18 days
Based on null reviews
Thu., 12 Nov.
YVR
Vancouver Airport
LHR
London Heathrow Airport
16h 30m
Tue., 24 Nov.
LHR
London Heathrow Airport
YVR
Vancouver Airport
17h 20m
C$ 676
Trip: 13 days
Based on null reviews
Thu., 15 Oct.
YYC
Calgary Airport
LHR
London Heathrow Airport
24h 30m
Thu., 22 Oct.
LHR
London Heathrow Airport
YYC
Calgary Airport
19h 48m
C$ 691
Trip: 8 days
Based on null reviews
Sat., 12 Sep.
YYC
Calgary Airport
LHR
London Heathrow Airport
15h 20m
Tue., 22 Sep.
LHR
London Heathrow Airport
YYC
Calgary Airport
17h 43m
C$ 721
Trip: 11 days
Based on null reviews
Wed., 14 Oct.
YYC
Calgary Airport
LHR
London Heathrow Airport
12h 40m
Sun., 1 Nov.
LHR
London Heathrow Airport
YYC
Calgary Airport
19h 30m
C$ 732
Trip: 19 days
Based on null reviews
Sat., 12 Sep.
YYC
Calgary Airport
LHR
London Heathrow Airport
23h 45m
Tue., 22 Sep.
LHR
London Heathrow Airport
YYC
Calgary Airport
15h 10m
C$ 733
Trip: 11 days
Based on null reviews
Sun., 6 Sep.
YEG
Edmonton
LHR
London Heathrow Airport
17h 30m
Mon., 5 Oct.
LHR
London Heathrow Airport
YEG
Edmonton
31h 39m
C$ 755
Trip: 30 days
Based on null reviews
Thu., 12 Nov.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
10h 20m
Sun., 15 Nov.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
26h 50m
C$ 449
Trip: 4 days
Based on null reviews
Mon., 19 Oct.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 20m
Mon., 7 Dec.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
26h 45m
C$ 453
Trip: 50 days
Based on null reviews
Sun., 25 Oct.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
13h 05m
Sun., 1 Nov.
LHR
London Heathrow Airport
YUL
Montreal Trudeau Airport
16h 20m
C$ 528
Trip: 8 days
Based on null reviews
Mon., 12 Oct.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
9h 45m
Mon., 26 Oct.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
11h 05m
C$ 455
Trip: 15 days
Based on null reviews
Wed., 11 Nov.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
22h 00m
Wed., 18 Nov.
LHR
London Heathrow Airport
YUL
Montreal Trudeau Airport
14h 05m
C$ 534
Trip: 8 days
Based on null reviews
Thu., 8 Oct.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
9h 45m
Mon., 12 Oct.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
11h 05m
C$ 456
Trip: 5 days
Based on null reviews
Tue., 8 Sep.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
10h 55m
Tue., 15 Sep.
LHR
London Heathrow Airport
YUL
Montreal Trudeau Airport
15h 35m
C$ 619
Trip: 8 days
Based on null reviews
Mon., 19 Oct.
YVR
Vancouver Airport
LHR
London Heathrow Airport
25h 04m
Thu., 5 Nov.
LHR
London Heathrow Airport
YVR
Vancouver Airport
39h 00m
C$ 625
Trip: 18 days
Based on null reviews
Tue., 8 Sep.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
10h 55m
Tue., 15 Sep.
LHR
London Heathrow Airport
YUL
Montreal Trudeau Airport
16h 10m
C$ 539
Trip: 8 days
Based on null reviews
Wed., 14 Oct.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 20m
Sun., 1 Nov.
LHR
London Heathrow Airport
YYZ
Toronto Pearson Airport
26h 50m
C$ 459
Trip: 19 days
Based on null reviews
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Book Cheap London Heathrow Airport Plane Tickets (One-way)

Airports
Origin
Vancouver
C$ 550
only
C$ 550
Calgary
C$ 593
only
C$ 593
Ottawa
C$ 518
only
C$ 518
Montreal
C$ 190
only
C$ 190
Halifax
C$ 501
only
C$ 501
Toronto
C$ 189
only
C$ 189
C$ 288
only
C$ 288
Destination
London
C$ 189
only
C$ 189
Tue., 15 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 40m
C$ 189
Based on null reviews
Sat., 5 Sep.
YTZ
Toronto Island
LHR
London Heathrow Airport
21h 45m
C$ 288
Based on null reviews
Tue., 15 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
10h 05m
C$ 288
Based on null reviews
Tue., 6 Oct.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
12h 35m
C$ 190
Based on null reviews
Sun., 27 Sep.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
23h 30m
C$ 194
Based on null reviews
Thu., 23 Jul.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
8h 55m
C$ 471
Based on null reviews
Tue., 1 Sep.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
26h 05m
C$ 472
Based on null reviews
Tue., 1 Sep.
YUL
Montreal Trudeau Airport
LHR
London Heathrow Airport
6h 35m
C$ 479
Based on null reviews
Fri., 25 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
13h 30m
C$ 198
Based on null reviews
Sat., 25 Jul.
YHZ
Halifax Intl
LHR
London Heathrow Airport
22h 45m
C$ 501
Based on null reviews
Sat., 8 Aug.
YOW
Ottawa Airport
LHR
London Heathrow Airport
16h 00m
C$ 518
Based on null reviews
Mon., 21 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
13h 30m
C$ 200
Based on null reviews
Tue., 11 Aug.
YOW
Ottawa Airport
LHR
London Heathrow Airport
20h 35m
C$ 542
Based on null reviews
Wed., 12 Aug.
YOW
Ottawa Airport
LHR
London Heathrow Airport
12h 15m
C$ 543
Based on null reviews
Wed., 19 Aug.
YVR
Vancouver Airport
LHR
London Heathrow Airport
9h 20m
C$ 550
Based on null reviews
Sat., 19 Sep.
YTZ
Toronto Island
LHR
London Heathrow Airport
27h 55m
C$ 291
Based on null reviews
Wed., 9 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 40m
C$ 201
Based on null reviews
Sun., 30 Aug.
YYC
Calgary Airport
LHR
London Heathrow Airport
12h 40m
C$ 593
Based on null reviews
Tue., 8 Sep.
YYZ
Toronto Pearson Airport
LHR
London Heathrow Airport
18h 40m
C$ 202
Based on null reviews
Wed., 9 Sep.
YTZ
Toronto Island
LHR
London Heathrow Airport
18h 25m
C$ 298
Based on null reviews
Show more results

Book Cheap Domestic Plane Tickets to London

Airports
Origin
Edinburgh
C$ 106
only
C$ 106
Destination
London
C$ 106
only
C$ 106
Thu., 19 Nov.
EDI
Edinburgh Turnhouse Airport
LHR
London Heathrow Airport
1h 20m
Mon., 23 Nov.
LHR
London Heathrow Airport
EDI
Edinburgh Turnhouse Airport
1h 25m
C$ 106
Trip: 5 days
Based on null reviews
Mon., 7 Dec.
EDI
Edinburgh Turnhouse Airport
LHR
London Heathrow Airport
1h 30m
Mon., 14 Dec.
LHR
London Heathrow Airport
EDI
Edinburgh Turnhouse Airport
1h 25m
C$ 110
Trip: 8 days
Based on null reviews
Tue., 1 Dec.
EDI
Edinburgh Turnhouse Airport
LHR
London Heathrow Airport
1h 20m
Thu., 10 Dec.
LHR
London Heathrow Airport
EDI
Edinburgh Turnhouse Airport
1h 30m
C$ 114
Trip: 10 days
Based on null reviews
Tue., 29 Dec.
EDI
Edinburgh Turnhouse Airport
LHR
London Heathrow Airport
1h 20m
Thu., 31 Dec.
LHR
London Heathrow Airport
EDI
Edinburgh Turnhouse Airport
1h 20m
C$ 115
Trip: 3 days
Based on null reviews
Tue., 6 Oct.
EDI
Edinburgh Turnhouse Airport
LHR
London Heathrow Airport
1h 25m
Tue., 13 Oct.
LHR
London Heathrow Airport
EDI
Edinburgh Turnhouse Airport
1h 25m
C$ 117
Trip: 8 days
Based on null reviews
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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