How do most travelers feel about Icelandair?

The general consensus from 7,623 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).

Can I get a flight from Seattle to London on Icelandair for under $1,000?

Icelandair offers 50 flights from Seattle to London for under $1,000. Prices vary by date and time. To see all prices and select your dates, click here.

Currently, the most affordable month to book a Icelandair flight from Seattle to London in November, with an average price of $652. Conversely, traveling with Icelandair from Seattle to London in June will be the most expensive, with an average cost of $1,138. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Fly Icelandair from SEA to London as low as $246

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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

Popular in	June
Cheapest in	November
Average price (all airlines)	$903
One-way from	$246
Round-trip from	$577

Highest demand for flights from Seattle/Tacoma Intl to London; 18% potential price increase.

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Best time to find cheap flights from Seattle/Tacoma Intl to London; 3% potential price drop.

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Average price for all Seattle/Tacoma Intl to London flights (one-way and round-trip).

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Cheapest one-way Icelandair flight from Seattle/Tacoma Intl to London

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Cheapest round-trip Icelandair flight from Seattle/Tacoma Intl to London

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Can I get a flight from Seattle to London on Icelandair for under $1,000?
Icelandair offers 50 flights from Seattle to London for under $1,000. 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 7,623 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

Mon 6/1711:00 pmSEA - LGW

1 stop28h 45mIcelandair

Tue 9/101:00 pmLGW - SEA

1 stop15h 35mIcelandair

Deal found 5/21$815

Pick Dates

Mon 6/1711:00 pmSEA - LHR

1 stop13h 20mIcelandair

Wed 9/111:05 pmLHR - SEA

1 stop12h 50mIcelandair

Deal found 5/21$815

Pick Dates

Mon 6/2411:00 pmSEA - LHR

1 stop13h 20mIcelandair

Fri 8/309:25 pmLHR - SEA

1 stop21h 55mIcelandair

Deal found 5/22$816

Pick Dates

Last minute deals on Cheapflights

Sat 6/111:00 pmSEA - LHR

1 stop28h 55mIcelandair

Sat 6/159:25 pmLHR - SEA

1 stop21h 55mIcelandair

Deal found 5/21$1,197

Pick Dates

Fri 5/3111:00 pmSEA - LGW

1 stop28h 45mIcelandair

Fri 6/211:00 pmLGW - SEA

1 stop12h 40mIcelandair

Deal found 5/22$1,223

Pick Dates

Thu 5/303:50 pmSEA - LGW

1 stop11h 55mIcelandair

Tue 6/181:00 pmLGW - SEA

1 stop12h 40mIcelandair

Deal found 5/21$1,277

Pick Dates

One-way Icelandair flights to London from Seattle

Mon 9/306:55 pmSEA - LHR

1 stop17h 25mIcelandair

Deal found 5/22$246

Pick Dates

Sun 9/296:55 pmSEA - LGW

1 stop32h 50mIcelandair

Deal found 5/21$252

Pick Dates

Sun 9/296:55 pmSEA - LHR

1 stop33h 00mIcelandair

Deal found 5/21$252

Pick Dates

Best time to book a flight from Seattle to London

Have a flexible travel schedule? Discover the best time to fly to London from Seattle with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in London by month

LON Temperature	39.2 - 62.6 °F

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).

Browse thousands of different options on Cheapflights for your next trip

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 May 22, 2024.

British Airways flights from Seattle/Tacoma Intl to London

Virgin Atlantic flights from Seattle/Tacoma Intl to London

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

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Other popular destinations in Europe
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Popular flights with Icelandair
Browse through some of the most popular routes that Icelandair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Icelandair flights from Seattle to Dublin

Icelandair flights from Seattle to London

Icelandair flights from Seattle to Dublin

Icelandair flights from Seattle to London

Icelandair flights from Seattle to Dublin

Icelandair flights from Seattle to London

See what others are saying about Icelandair

Icelandair

7.0

Good

1,266 reviews

Check prices

Overview

Recent reviews

7.0

Good|Mar 2018

no snacks oferred

crew was helpful comfortable seats

1.9

Poor|Aug 2021

Never again will I fly to Europe on Icelandair. It took me 1.5 hours to check-in in Berlin (one person working the counter, another one handling the “express” line, no opportunity to get a boarding pass at home), Came to the airport 2 hrs before but after I cleared security, the display showed last call for my flight with 2 min remaining. Ran. Did not shop, did not eat, did not buy food to take onboard. Icelandair sells a limited number of food items (a chicken sandwich - not for a vegetarian - and a cheese pizza as well as several snacks), no complimentary food is served. This is what they call “simplified onboard service”. Connection in Reykjavík was 1hr 25 min, and all of this time I stood in line to clear passport control: again no shopping, no eating, and not even a bathroom break. Arrived home famished and super annoyed. Had to buy headphones on board (is this a budget airline?!) and the selection of movies left much to be desired.

6.0

Okay|Sep 2023

Excellent customer service. Left a bag on first flight. The service area retrieved the bag before we got on the connecting flight. The boarding crew and inflight crew were all exceptional. The seating, food and entertainment need improvement. There should be pods for business class

4.0

Mediocre|Sep 2023

Pod for sleeping, better movie choices, better food

10.0

Wonderful|Jul 2023

Business class: expedited and efficient boarding, plenty of leg space and excellent service abd meals.

1 out of 422

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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 May 22, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Seattle to London on Icelandair for under $1,000?

How do most travelers feel about Icelandair?

Cheapest Icelandair flights from Seattle to London

Last minute deals on Cheapflights

One-way Icelandair flights to London from Seattle

Best time to book a flight from Seattle to London

Have a flexible travel schedule? Discover the best time to fly to London from Seattle with our price prediction graph.

Temperature and rainfall in London by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 May 22, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Other Icelandair flights from Seattle
Browse through other Icelandair flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Browse through other Icelandair flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Seattle and London
Choose from other airlines serving Seattle and London.

Choose from other airlines serving Seattle and London.

Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Popular flights with Icelandair
Browse through some of the most popular routes that Icelandair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 22, 2024.

Browse through some of the most popular routes that Icelandair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 22, 2024.

See what others are saying about Icelandair

Overview

Recent reviews

100% Free

Book with Flexibility

Travel Smart

Flights

Icelandair flights from Seattle to London (SEA - LON)

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 May 22, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Seattle to London on Icelandair for under $1,000?

How do most travelers feel about Icelandair?

Cheapest Icelandair flights from Seattle to London

Last minute deals on Cheapflights

One-way Icelandair flights to London from Seattle

Best time to book a flight from Seattle to London

Have a flexible travel schedule? Discover the best time to fly to London from Seattle with our price prediction graph.

Temperature and rainfall in London by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 22, 2024.

See what others are saying about Icelandair

Overview

100% Free

Book with Flexibility

Travel Smart

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 May 22, 2024.