Icelandair Flight BA450 Deals & Information (2025/2026)

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Icelandair Flight 450 Route Deals From $252

The cheapest prices found with in the last 7 days for return flights were $281 and $252 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 22 - Wed, Nov 26
KEF
Keflavik Intl.
LHR
Heathrow
$281 Roundtrip, found 9 hours ago
$281
Roundtrip
found 9 hours ago
Select Icelandair flight, departing Sat, Nov 22 from Keflavik Intl. to Heathrow, returning Wed, Nov 26, priced at $281 found 9 hours ago

Frequently asked questions

What route does flight number FI450 take?
Flight number FI450 takes around 3 hours and 15 minutes to jet directly from Reykjavík--Keflavík Airport to Heathrow Airport (LHR). Sure, there's magic in the destination, but half the fun is in the journey!
What kind of plane is on flight number FI450?
There's a good chance you'll be traveling aboard the Boeing 767-300 if you're on flight FI450. Generally, this flight leaves from Reykjavík--Keflavík Airport and comes in to land at London Airport (LHR-Heathrow).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your FI450 flight with Travelocity, please visit our Customer Service Portal.