Book Icelandair flights to United Kingdom from USD 434*
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1 Passenger
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Deals on flights in next three months
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flight_land
USD
Seattle (SEA)to
London (LON)Feb 25 2026 - Mar 18 2026
From
USD 550
Viewed 1 day ago
Round trip
Economy
Seattle (SEA)to
London (LON)Feb 03 2026 - Feb 23 2026
From
USD 550
Viewed 1 day ago
Round trip
Economy
Denver (DEN)to
Glasgow (GLA)Mar 03 2026 - Mar 10 2026
From
USD 434
Viewed 2 days ago
Round trip
Economy
Denver (DEN)to
Glasgow (GLA)Feb 08 2026 - Mar 05 2026
From
USD 520
Viewed 16 hrs ago
Round trip
Economy
Denver (DEN)to
London (LON)Feb 27 2026 - Mar 12 2026
From
USD 525
Viewed 16 hrs ago
Round trip
Economy
Denver (DEN)to
London (LON)Feb 27 2026 - Mar 13 2026
From
USD 525
Viewed 16 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Apr 24 2026 - May 02 2026
From
USD 450
Viewed 15 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Feb 15 2026 - Mar 10 2026
From
USD 519
Viewed 1 day ago
Round trip
Economy
Boston (BOS)to
Glasgow (GLA)Mar 01 2026 - Mar 06 2026
From
USD 520
Viewed 17 hrs ago
Round trip
Economy
Boston (BOS)to
Glasgow (GLA)Mar 01 2026 - Mar 17 2026
From
USD 520
Viewed 17 hrs ago
Round trip
Economy
Seattle (SEA)to
London (LHR)Feb 28 2026 - Mar 05 2026
From
USD 553
Viewed 2 days ago
Round trip
Economy
Seattle (SEA)to
Glasgow (GLA)Feb 03 2026 - Feb 11 2026
From
USD 520
Viewed 1 day ago
Round trip
Economy
*Fares displayed have been collected within the last 72 hours and may no longer be available at the time of booking. We display fares for Economy Light as standard, but it is possible to change your class of service during the booking process. You can also add baggage meals and extra legroom to your trip during booking.
Plan ahead for your trip to United Kingdom with Icelandair
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USD
From | To | Fare type | Dates | Price |
|---|---|---|---|---|
| Seattle (SEA) | London (LON) | Round trip / Economy | Apr 23 2026 - Apr 28 2026 | From USD 566 Viewed 1 day ago |
| Denver (DEN) | Glasgow (GLA) | Round trip / Economy | Apr 25 2026 - Apr 29 2026 | From USD 536 Viewed 16 hrs ago |
| Denver (DEN) | London (LON) | Round trip / Economy | Apr 23 2026 - Apr 30 2026 | From USD 541 Viewed 16 hrs ago |
| Chicago (ORD) | London (LON) | Round trip / Economy | Apr 24 2026 - May 02 2026 | From USD 450 Viewed 15 hrs ago |
| Boston (BOS) | Glasgow (GLA) | Round trip / Economy | Apr 22 2026 - Apr 28 2026 | From USD 536 Viewed 17 hrs ago |
| Seattle (SEA) | Glasgow (GLA) | Round trip / Economy | Apr 22 2026 - Apr 29 2026 | From USD 536 Viewed 1 day ago |
| Boston (BOS) | London (LON) | Round trip / Economy | Apr 21 2026 - Apr 29 2026 | From USD 535 Viewed 13 hrs ago |
| Chicago (ORD) | Glasgow (GLA) | Round trip / Economy | Apr 24 2026 - Apr 28 2026 | From USD 536 Viewed 11 hrs ago |
| Seattle (SEA) | London (LGW) | Round trip / Economy | Oct 04 2026 - Oct 09 2026 | From USD 567 Viewed 1 day ago |
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.
