Cheap Flights From Keflavik Intl. (KEF) To Heathrow (LHR)

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Cheapest Flights from Reykjavik (KEF) to London (LHR)

The cheapest flights to Heathrow found within the past 7 days were CA $339 round trip and CA $153 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Apr 22 - Thu, Apr 23
KEF
Reykjavik
LHR
London
CA $339 Roundtrip, found 23 hours ago
CA $339
Roundtrip
found 23 hours ago
Select British Airways flight, departing Wed, Apr 22 from Reykjavik to London, returning Thu, Apr 23, priced at CA $339 found 23 hours ago
Fri, Apr 24 - Sun, Apr 26
KEF
Reykjavik
LHR
London
CA $375 Roundtrip, found 2 days ago
CA $375
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Apr 24 from Reykjavik to London, returning Sun, Apr 26, priced at CA $375 found 2 days ago
Wed, May 20 - Thu, May 21
KEF
Reykjavik
LHR
London
CA $391 Roundtrip, found 20 hours ago
CA $391
Roundtrip
found 20 hours ago
Select Scandinavian Airlines flight, departing Wed, May 20 from Reykjavik to London, returning Thu, May 21, priced at CA $391 found 20 hours ago
Wed, Apr 22 - Thu, Apr 23
KEF
Reykjavik
LHR
London
CA $402 Roundtrip, found 23 hours ago
CA $402
Roundtrip
found 23 hours ago
Select British Airways flight, departing Wed, Apr 22 from Reykjavik to London, returning Thu, Apr 23, priced at CA $402 found 23 hours ago
Sat, Oct 3 - Sun, Oct 11
KEF
Reykjavik
LHR
London
CA $406 Roundtrip, found 5 days ago
CA $406
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sat, Oct 3 from Reykjavik to London, returning Sun, Oct 11, priced at CA $406 found 5 days ago
Sun, Sep 6 - Thu, Sep 17
KEF
Reykjavik
LHR
London
CA $408 Roundtrip, found 5 days ago
CA $408
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sun, Sep 6 from Reykjavik to London, returning Thu, Sep 17, priced at CA $408 found 5 days ago
Thu, Apr 23 - Mon, Apr 27
KEF
Reykjavik
LHR
London
CA $408 Roundtrip, found 6 days ago
CA $408
Roundtrip
found 6 days ago
Select British Airways flight, departing Thu, Apr 23 from Reykjavik to London, returning Mon, Apr 27, priced at CA $408 found 6 days ago
Wed, May 20 - Thu, May 21
KEF
Reykjavik
LHR
London
CA $421 Roundtrip, found 20 hours ago
CA $421
Roundtrip
found 20 hours ago
Select Scandinavian Airlines flight, departing Wed, May 20 from Reykjavik to London, returning Thu, May 21, priced at CA $421 found 20 hours ago
Wed, May 20 - Thu, May 21
KEF
Reykjavik
LHR
London
CA $433 Roundtrip, found 20 hours ago
CA $433
Roundtrip
found 20 hours ago
Select Scandinavian Airlines flight, departing Wed, May 20 from Reykjavik to London, returning Thu, May 21, priced at CA $433 found 20 hours ago
Wed, Jul 15 - Thu, Jul 30
KEF
Reykjavik
LHR
London
CA $437 Roundtrip, found 2 days ago
CA $437
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Jul 15 from Reykjavik to London, returning Thu, Jul 30, priced at CA $437 found 2 days ago

Frequently asked questions

Are there direct flights from KEF to London Heathrow?
Icelandair and British Airways are a couple of the airlines that have nonstop flights from Keflavik Intl. Airport (KEF) to Heathrow Airport (LHR). If you need to get to where you're headed without a layover, these are the airlines for you.
What airlines fly from Reykjavík–Keflavík Airport to Heathrow Airport (LHR)?
You can choose from a number of airlines that fly direct between Reykjanesbær and London. Icelandair (FI) is one of the most well-known. This air carrier operates roughly 47 flights every month. If you want more choice, have a look at the fares on offer from British Airways (BA). This airline has 13 flights every month. Between the two, there's no doubt you'll find the flight that's perfect for you.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.