How do most travelers feel about Icelandair?

The general consensus from 7,557 Cheapflights users is that Icelandair is a 6.9/10. 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 $1,300?

Icelandair offers 50 flights from Seattle to London for under $1,300. Prices vary by date and time. To see all prices and select your dates, click here.

How far ahead should I book a flight from Seattle to London with Icelandair?

Booking with Icelandair 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to London with Icelandair?

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 $1,102. 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 $248

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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)	$1,203
One-way from	$248
Round-trip from	$569

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 $1,300?
Icelandair offers 50 flights from Seattle to London for under $1,300. 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 7,557 Cheapflights users is that Icelandair is a 6.9/10. Select your travel dates above for updated prices on flights from Seattle to London (SEA-LON).

Cheapest Icelandair flights from Seattle to London

Sun 6/306:55 pmSEA - LHR

1 stop33h 00mIcelandair

Fri 8/301:05 pmLHR - SEA

1 stop30h 15mIcelandair

Deal found 6/2$777

Pick Dates

Mon 6/176:55 pmSEA - LGW

1 stop32h 50mIcelandair

Tue 9/101:00 pmLGW - SEA

1 stop12h 55mIcelandair

Deal found 6/2$780

Pick Dates

Mon 6/176:55 pmSEA - LHR

1 stop17h 25mIcelandair

Tue 9/101:05 pmLHR - SEA

1 stop15h 30mIcelandair

Deal found 6/2$781

Pick Dates

Last minute deals on Cheapflights

Tue 6/1111:00 pmSEA - LHR

1 stop13h 20mIcelandair

Sat 8/311:05 pmLHR - SEA

1 stop15h 30mIcelandair

Deal found 6/2$970

Pick Dates

Tue 6/113:50 pmSEA - LGW

1 stop11h 55mIcelandair

Thu 8/291:00 pmLGW - SEA

1 stop12h 40mIcelandair

Deal found 6/2$1,028

Pick Dates

Tue 6/1111:00 pmSEA - LHR

1 stop13h 20mIcelandair

Thu 8/291:10 pmLHR - SEA

1 stop12h 30mIcelandair

Deal found 6/2$1,095

Pick Dates

One-way Icelandair flights to London from Seattle

Mon 9/306:55 pmSEA - LHR

1 stop17h 25mIcelandair

Deal found 6/1$248

Pick Dates

Sun 10/63:50 pmSEA - LGW

1 stop11h 55mIcelandair

Deal found 6/2$251

Pick Dates

Tue 10/153:50 pmSEA - LHR

1 stop20h 30mIcelandair

Deal found 6/1$251

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 June 3, 2024.

Virgin Atlantic flights from Seattle/Tacoma Intl to London

British Airways 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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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 June 3, 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

1,208 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 403

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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 June 3, 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 $1,300?

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 June 3, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 3, 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 June 3, 2024.

Browse through other Icelandair flights departing from Seattle. Flight routes are based on user searches made on Cheapflights and were last updated on June 3, 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 June 3, 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 June 3, 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 June 3, 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 June 3, 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 June 3, 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 $1,300?

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 June 3, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 3, 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 June 3, 2024.