Icelandair flights from Seattle to London (SEA - LON)

SEA — LON
Apr 27 — May 41

Cheapflights users flying from Seattle to London on Icelandair typically fly into London Heathrow and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

Icelandair flights from Seattle to London in 2024

Find detailed information about Icelandair flights from Seattle to London. Explore the options provided by Icelandair to plan your journey from Seattle to London. Data last updated April 22, 2024.

Popular in

June

Cheapest in

January

Average price (all airlines)

$766

One-way from

$248

Round-trip from

$596
Highest demand for flights from Seattle/Tacoma Intl to London; 14% potential price increase.
Best time to find cheap flights from Seattle/Tacoma Intl to London; 2% potential price drop.
Average price for all Seattle/Tacoma Intl to London flights (one-way and round-trip).
Cheapest one-way Icelandair flight from Seattle/Tacoma Intl to London
Cheapest round-trip Icelandair flight from Seattle/Tacoma Intl to London
  • Can I get a flight from Seattle to London on Icelandair for under $800?

    Icelandair offers 50 flights from Seattle to London for under $800. Prices vary by date and time. To see all prices and select your dates, click here.

  • How do most travelers feel about Icelandair?

    The general consensus from 7,768 Cheapflights users is that Icelandair is a 7.0/10. Select your travel dates above for updated prices on flights from Seattle to London (SEA-LON).

Cheapest Icelandair flights from Seattle to London

Discover the cheapest flight options specifically offered by Icelandair for travel from Seattle to London. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,086,534 searches. The data was last updated on April 22, 2024.
Mon 5/136:55 pmSEA - LHR
1 stop17h 25mIcelandair
Sun 5/199:25 pmLHR - SEA
1 stop28h 15mIcelandair
Deal found 4/20$671
Mon 5/136:55 pmSEA - LGW
1 stop32h 50mIcelandair
Mon 5/201:00 pmLGW - SEA
1 stop12h 40mIcelandair
Deal found 4/21$699
Sun 5/126:55 pmSEA - LGW
1 stop32h 50mIcelandair
Sat 5/181:00 pmLGW - SEA
1 stop12h 40mIcelandair
Deal found 4/21$702

Last minute deals on Cheapflights

Explore last-minute flight deals on Icelandair for various destinations, including Seattle to London. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated April 22, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 3,086,534 searches.
Wed 5/13:50 pmSEA - LGW
1 stop11h 55mIcelandair
Wed 5/151:00 pmLGW - SEA
1 stop15h 35mIcelandair
Deal found 4/21$715
Wed 5/13:50 pmSEA - LGW
1 stop11h 55mIcelandair
Tue 5/141:00 pmLGW - SEA
1 stop12h 40mIcelandair
Deal found 4/21$739
Wed 5/13:50 pmSEA - LGW
1 stop11h 55mIcelandair
Sun 5/121:00 pmLGW - SEA
1 stop12h 40mIcelandair
Deal found 4/21$821

One-way Icelandair flights to London from Seattle

Search for one-way flight options from Seattle to London specifically provided by Icelandair. Find affordable one-way fares from Icelandair and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,086,534 searches. The data was last updated on April 22, 2024.
Sun 10/66:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 4/21$248
Sun 10/63:50 pmSEA - LGW
1 stop11h 55mIcelandair
Deal found 4/21$250
Sun 10/133:50 pmSEA - LHR
1 stop20h 30mIcelandair
Deal found 4/21$250

Average price of Icelandair flights from Seattle to London

Plan your Icelandair flight from Seattle to London by taking into account the cheapest months to travel. The average price of a one-way Icelandair flight from Seattle to London is currently $249 while a round-trip flight costs $0. Price data was last updated on April 21, 2024.

Currently, the most affordable month to book a Icelandair flight from Seattle to London in November, with an average price of $653. Conversely, traveling with Icelandair from Seattle to London in June will be the most expensive, with an average cost of $1,177. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

$676

February

$664

March

$715

April

$705

May

$753

June

$1,177

July

$989

August

$780

September

$749

October

$713

November

$653

December

$673

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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Fly from Seattle to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on April 22, 2024.

See what others are saying about Icelandair

Read reviews and see what other travelers are saying about their experiences with Icelandair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Icelandair for your next flight. Reviews last updated April 22, 2024.
Icelandair
7.1
Good
1,355 reviews
Overview

Comfort

6.8

Crew

8.0

Boarding

7.1

Food

6.2

Entertainment

7.1
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