Cheap flights from Seattle to London from $308
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Virgin Atlantic flights from Seattle to London City Airport
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Delta flights from Seattle to London City Airport
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When to book flights from Seattle to London City Airport
Cheap Seattle to London City Airport (SEA to LCY) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to London City Airport
How far is Seattle/Tacoma Intl to London City by plane?
The distance between Seattle/Tacoma Intl and London City is about 4785.6 mi. In terms of flight time, this usually takes a little over 13h 25m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London City Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London City Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to London City Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to London City Airport is 1 as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London City Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to London City Airport.
What documentation or ID do you need to fly to London City Airport?
The travel and health documents you'll need for your trip to London City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to London City Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to London City Airport is Scandinavian Airlines (100% of total bookings).
Best airlines flying from Seattle to London City Airport
Compare and see reviews for airlines that fly from Seattle to London City Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $962 | Free Cancellation | Rating 7.3 1,416 reviews |
How do I get Price Alerts for flights from Seattle to London City Airport?
Confirm your travel details to search for the latest offers for flights from Seattle to London City Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Seattle to London City Airport with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.
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Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to London. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to London with flexible booking policies on momondo?
Yes. All flights to London from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seattle to London?
Once you have performed a search for Seattle to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.