Icelandair Flight 455 Deals & Information (2025/2026)

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Icelandair Flight 455 Route Deals From $106

The cheapest prices found with in the last 7 days for return flights were $171 and $106 for one-way flights to Keflavik Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 10 - Sun, Dec 14
LHR
Heathrow
KEF
Keflavik Intl.
$171 Roundtrip, just found
$171
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 10 from Heathrow to Keflavik Intl., returning Sun, Dec 14, priced at $171 just found
Thu, Nov 13 - Sun, Nov 16
LHR
Heathrow
KEF
Keflavik Intl.
$172 Roundtrip, found 4 days ago
$172
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Nov 13 from Heathrow to Keflavik Intl., returning Sun, Nov 16, priced at $172 found 4 days ago
Wed, Dec 10 - Sun, Dec 14
LHR
Heathrow
KEF
Keflavik Intl.
$178 Roundtrip, just found
$178
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 10 from Heathrow to Keflavik Intl., returning Sun, Dec 14, priced at $178 just found
Tue, Feb 3 - Sat, Feb 7
LHR
Heathrow
KEF
Keflavik Intl.
$184 Roundtrip, found 2 days ago
$184
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Feb 3 from Heathrow to Keflavik Intl., returning Sat, Feb 7, priced at $184 found 2 days ago
Wed, Dec 10 - Sun, Dec 14
LHR
Heathrow
KEF
Keflavik Intl.
$184 Roundtrip, just found
$184
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 10 from Heathrow to Keflavik Intl., returning Sun, Dec 14, priced at $184 just found
Thu, Nov 13 - Sun, Nov 16
LHR
Heathrow
KEF
Keflavik Intl.
$186 Roundtrip, found 4 days ago
$186
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Nov 13 from Heathrow to Keflavik Intl., returning Sun, Nov 16, priced at $186 found 4 days ago
Fri, Jan 16 - Tue, Jan 20
LHR
Heathrow
KEF
Keflavik Intl.
$191 Roundtrip, found 13 hours ago
$191
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Fri, Jan 16 from Heathrow to Keflavik Intl., returning Tue, Jan 20, priced at $191 found 13 hours ago
Fri, Mar 13 - Sun, Mar 15
LHR
Heathrow
KEF
Keflavik Intl.
$198 Roundtrip, found 1 day ago
$198
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Mar 13 from Heathrow to Keflavik Intl., returning Sun, Mar 15, priced at $198 found 1 day ago
Thu, Dec 11 - Thu, Dec 18
LHR
Heathrow
KEF
Keflavik Intl.
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Dec 11 from Heathrow to Keflavik Intl., returning Thu, Dec 18, priced at $200 found 1 day ago
Fri, Jan 16 - Tue, Jan 20
LHR
Heathrow
KEF
Keflavik Intl.
$205 Roundtrip, found 13 hours ago
$205
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Fri, Jan 16 from Heathrow to Keflavik Intl., returning Tue, Jan 20, priced at $205 found 13 hours ago
Wed, Dec 10 - Sun, Dec 14
LHR
Heathrow
KEF
Keflavik Intl.
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 10 from Heathrow to Keflavik Intl., returning Sun, Dec 14, priced at $208 just found
Thu, Nov 20 - Fri, Nov 28
LHR
Heathrow
KEF
Keflavik Intl.
$211 Roundtrip, found 9 hours ago
$211
Roundtrip
found 9 hours ago
Select Icelandair flight, departing Thu, Nov 20 from Heathrow to Keflavik Intl., returning Fri, Nov 28, priced at $211 found 9 hours ago
Tue, Jan 27 - Tue, Feb 10
LHR
Heathrow
KEF
Keflavik Intl.
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Jan 27 from Heathrow to Keflavik Intl., returning Tue, Feb 10, priced at $214 found 1 day ago
Wed, Dec 10 - Sun, Dec 14
LHR
Heathrow
KEF
Keflavik Intl.
$220 Roundtrip, just found
$220
Roundtrip
just found
Select Icelandair flight, departing Wed, Dec 10 from Heathrow to Keflavik Intl., returning Sun, Dec 14, priced at $220 just found

Frequently asked questions

What route does flight number FI455 take?
Flight number FI455 flies directly from Heathrow Airport (LHR) to Reykjavik Airport (KEF-Keflavik Intl.). During this journey, expect to be in the air for approximately 3 hours and 15 minutes. It pays to book ahead to lock in your favorite seat.
How often is FI455 on time?
Icelandair flight number FI455 between LHR and KEF runs on time 80% of the time — so you can relax knowing that you'll get to your destination ASAP. If the journey happens to be late, you're likely to wait about 18 minutes. This route has a star rating of 3.35.
What terminal does FI455 fly out of?
You'll likely be stepping aboard the plane at Terminal 2 if you're traveling on flight FI455 direct from London Airport (LHR-Heathrow) to KEF.
What kind of plane is on flight number FI455?
Prepare to cruise the skies aboard a Boeing 757-200 if you're booked on flight FI455. Nearly all flights from Heathrow Airport to Reykjavik Airport (KEF-Keflavik Intl.) operate using this type of aircraft.
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 FI455 flight with Travelocity, please visit our Customer Service Portal.