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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to Keflavik Intl. found within the past 7 days were CA $244 round trip and CA $151 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Feb 24 - Thu, Mar 5
LHR
London
KEF
Reykjavik
CA $244 Roundtrip, found 4 days ago
CA $244
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue, Feb 24 from London to Reykjavik, returning Thu, Mar 5, priced at CA $244 found 4 days ago
Sat, Apr 18 - Fri, Apr 24
LHR
London
KEF
Reykjavik
CA $248 Roundtrip, found 6 days ago
CA $248
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, Apr 18 from London to Reykjavik, returning Fri, Apr 24, priced at CA $248 found 6 days ago
Tue, Feb 24 - Thu, Mar 5
LHR
London
KEF
Reykjavik
CA $251 Roundtrip, found 4 days ago
CA $251
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Feb 24 from London to Reykjavik, returning Thu, Mar 5, priced at CA $251 found 4 days ago
Tue, Feb 24 - Thu, Mar 5
LHR
London
KEF
Reykjavik
CA $253 Roundtrip, found 4 days ago
CA $253
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue, Feb 24 from London to Reykjavik, returning Thu, Mar 5, priced at CA $253 found 4 days ago
Fri, Mar 13 - Mon, Mar 16
LHR
London
KEF
Reykjavik
CA $263 Roundtrip, found 4 days ago
CA $263
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Mar 13 from London to Reykjavik, returning Mon, Mar 16, priced at CA $263 found 4 days ago
Sun, May 10 - Sun, May 17
LHR
London
KEF
Reykjavik
CA $269 Roundtrip, found 2 days ago
CA $269
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sun, May 10 from London to Reykjavik, returning Sun, May 17, priced at CA $269 found 2 days ago
Sat, Apr 18 - Fri, Apr 24
LHR
London
KEF
Reykjavik
CA $279 Roundtrip, found 6 days ago
CA $279
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Apr 18 from London to Reykjavik, returning Fri, Apr 24, priced at CA $279 found 6 days ago
Fri, Mar 13 - Mon, Mar 16
LHR
London
KEF
Reykjavik
CA $281 Roundtrip, found 4 days ago
CA $281
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Mar 13 from London to Reykjavik, returning Mon, Mar 16, priced at CA $281 found 4 days ago
Sun, May 10 - Sun, May 17
LHR
London
KEF
Reykjavik
CA $288 Roundtrip, found 2 days ago
CA $288
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sun, May 10 from London to Reykjavik, returning Sun, May 17, priced at CA $288 found 2 days ago
Sat, Apr 18 - Fri, Apr 24
LHR
London
KEF
Reykjavik
CA $289 Roundtrip, found 6 days ago
CA $289
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, Apr 18 from London to Reykjavik, returning Fri, Apr 24, priced at CA $289 found 6 days ago

Frequently asked questions

Are there direct flights from LHR to Reykjavík–Keflavík Airport?
Kick off your adventure in the calmest way possible and fly straight to KEF from London Heathrow. Icelandair and British Airways are among the airlines that have direct services on this route.
What airlines fly from London Heathrow to Keflavik Intl. Airport (KEF)?
There are a number of airlines that have direct flights from Heathrow Airport to Reykjavík–Keflavík Airport. Icelandair (FI) is among the best of them, offering roughly 47 flights every month. Another popular choice is British Airways (BA), which offers 13 flights each month. The more airlines you look into, the more likely you are to walk away with a wonderful deal.
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.
*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.