$98 Cheap Icelandair flights London (LHR) to Reykjavik (KEF)

View $98 flight on Wed, Dec 10, 2025Opens in a new window

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$98 Cheap Icelandair flights London (LHR) to Reykjavik (KEF)

Prices were available within the past 7 days and start at $98 for one-way flights and $192 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Dec 10 - Sat, Dec 13
LHR
London
KEF
Reykjavik
$192 Roundtrip, found 10 hours ago
$192
Roundtrip
found 10 hours ago
Select Icelandair flight, departing Wed, Dec 10 from London to Reykjavik, returning Sat, Dec 13, priced at $192 found 10 hours ago
Icelandair
Wed, Dec 10 - Sat, Dec 13
LHR
London
KEF
Reykjavik
$195 Roundtrip, found 10 hours ago
$195
Roundtrip
found 10 hours ago
Select Icelandair flight, departing Wed, Dec 10 from London to Reykjavik, returning Sat, Dec 13, priced at $195 found 10 hours ago
Icelandair
Wed, Nov 26 - Fri, Nov 28
LHR
London
KEF
Reykjavik
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Nov 26 from London to Reykjavik, returning Fri, Nov 28, priced at $202 found 1 day ago
Icelandair
Wed, Dec 10 - Sat, Dec 13
LHR
London
KEF
Reykjavik
$202 Roundtrip, found 10 hours ago
$202
Roundtrip
found 10 hours ago
Select Icelandair flight, departing Wed, Dec 10 from London to Reykjavik, returning Sat, Dec 13, priced at $202 found 10 hours ago
Icelandair
Wed, Jan 14 - Sat, Jan 17
LHR
London
KEF
Reykjavik
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Jan 14 from London to Reykjavik, returning Sat, Jan 17, priced at $205 found 1 day ago
Icelandair
Fri, Jan 16 - Tue, Jan 20
LHR
London
KEF
Reykjavik
$206 Roundtrip, found 8 hours ago
$206
Roundtrip
found 8 hours ago
Select Icelandair flight, departing Fri, Jan 16 from London to Reykjavik, returning Tue, Jan 20, priced at $206 found 8 hours ago
Icelandair
Sun, Nov 2 - Wed, Nov 12
LHR
London
KEF
Reykjavik
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sun, Nov 2 from London to Reykjavik, returning Wed, Nov 12, priced at $207 found 3 days ago
Flights from London (LHR) to Reykjavik (KEF)
Origin airport
Heathrow
Destination airport
Keflavik Intl.
Airlines serving
Air Baltic, Air France, Austrian Airlines, British Airways, Eurowings, Iberia, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines
Popular airline
Icelandair
Distance
1178 mi
Average flight time
2 hours 8 mins

Frequently asked questions

How much is an Icelandair flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Make use of the "Price (lowest to highest)" filter on Expedia to find cheap Icelandair round-trip flights from $192 from LHR to KEF. Affordable one-way fares from $98 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LHR to KEF with Icelandair?
January is one of the least expensive months to travel to Reykjavik with Icelandair. You could also find great deals on one-way and round-trip tickets in April.
What is the cheapest time to book flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) with Icelandair?
Getting the best Icelandair deals from LHR to KEF often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. To top it off, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is often the most expensive day to book.* It's smart to kick off your flight search about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Icelandair fly nonstop from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Yes, you can fly from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) on one of Icelandair's 14 weekly direct flights. Apply our "Nonstop" and "Airline" filters to find the Icelandair flight that'll take you to KEF at a time that suits you.
How long does it take to fly from LHR to KEF with Icelandair?
It takes around 3h 15m to travel nonstop from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) with Icelandair.
Which day of the week has the most Icelandair flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Icelandair operates the most flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF) on Tuesday. With up to 2 daily departures, you'll get the most flexibility on this day.
What is the earliest Icelandair flight from LHR to KEF?
The first flight from LHR to KEF with Icelandair departs at 12:15PM UTC+0. You'll touch down at 3:30PM UTC+0. The final Icelandair flight of the day leaves at 8:40PM UTC+0 and arrives at 11:55PM UTC+0. With 20% fewer cancellations for morning and mid-morning flights, heading out early is often the best option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Icelandair fly into in Reykjavik?
Take an Icelandair flight from Heathrow Airport (LHR) to Reykjavik, and you're most likely to come in to Keflavik Intl. Airport (KEF). This is the airline's main hub in this destination.
What kind of luggage can I take on an Icelandair flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
On Icelandair, you can fly standard economy from LHR to KEF with a small personal item and 1 cabin bag. Your carry-on bag should be no larger than 21 inches x 7 inches x 13 inches and weigh under 13 lb. Exceeding these restrictions could result in extra charges, so check your airline's latest policies before confirming your booking.
Why fly with Icelandair from LHR to KEF?
Icelandair makes flying from LHR to KEF enjoyable with top-tier customer service and a rewarding loyalty program. You also have the chance to earn points with Icelandair Saga Club. Remember to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Icelandair fly from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
Icelandair typically uses Boeing 737 MAX 8 planes for flights from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF). This airline also operates the Airbus A321neo on this route. Remember that aircraft type can change depending on operational requirements, so the plane you board might be different when you leave.
Can I change or cancel my Icelandair flight from Heathrow Airport (LHR) to Keflavik Intl. Airport (KEF)?
In most cases, you can modify or cancel your flight, although there may be additional fees if your booking was made more than 24 hours ago. Want to keep your options open? Make use of our "No cancel fee" and "Changes included" filters to find flights that won't penalize you if you have to alter your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.