$160 Cheap Flights from London to Seattle–Tacoma International
One-way
Departing from
London
Going to
Seattle–Tacoma International
Seattle (SEA)
United States • April, 2026
66% AI deal score
$373 $160
Seattle (SEA)
United States • April, 2026
66% AI deal score
$373 $161
Seattle (SEA)
United States • April, 2026
66% AI deal score
$373 $161
Seattle (SEA)
United States • April, 2026
65% AI deal score
$725 $410
Seattle (SEA)
United States • April, 2026
62% AI deal score
$725 $385
This is the lowest one-way flight price found by RatePunk users in the last 24 hours for a flight going to Seattle–Tacoma International. Fares are subject to change and may not be available for all dates. (Data last updated 4/8/2026).
Popular airlines to Seattle–Tacoma International
American Airlines
Air Canada
Alaska Airlines, Inc.
JetBlue Airways
Delta Air Lines
Frontier Airlines
Hawaiian Airlines
United Airlines
636,557 searches in the past 7 days on RatePunk
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Top Cheap Flight Deals from London to Seattle–Tacoma International
Recent round-trip flight deals to Seattle–Tacoma International
Mon, Apr 20 - Mon, Apr 27
Cheapest
London (YXU) - Seattle (SEA)
WestJet airlines • 1 stop • Calgary (YYC)
Seattle (SEA) - London (YXU)
WestJet airlines • 1 stop • Calgary (YYC)
$373
$287
-$86
23%
Mon, Apr 20 - Sun, Apr 26
London (YXU) - Seattle (SEA)
WestJet airlines • 1 stop • Calgary (YYC)
Seattle (SEA) - London (YXU)
WestJet airlines • 1 stop • Calgary (YYC)
$373
$300
-$73
20%
Mon, Apr 13 - Sun, Apr 26
London (YXU) - Seattle (SEA)
WestJet airlines • 1 stop • Calgary (YYC)
Seattle (SEA) - London (YXU)
WestJet airlines • 1 stop • Calgary (YYC)
$373
$339
-$34
9%
Wed, Apr 15 - Mon, Apr 20
London (LHR) - Seattle (SEA)
Icelandair airlines • 1 stop • Reykjavik (KEF)
Seattle (SEA) - London (LHR)
Icelandair airlines • 1 stop • Reykjavik (KEF)
$780
$683
-$97
12%
Wed, Apr 22 - Mon, Apr 27
London (LHR) - Seattle (SEA)
Icelandair airlines • 1 stop • Reykjavik (KEF)
Seattle (SEA) - London (LHR)
Icelandair airlines • 1 stop • Reykjavik (KEF)
$780
$683
-$97
12%
Thu, Apr 16 - Mon, Apr 20
London (LHR) - Seattle (SEA)
Icelandair airlines • 1 stop • Reykjavik (KEF)
Seattle (SEA) - London (LHR)
Icelandair airlines • 1 stop • Reykjavik (KEF)
$780
$683
-$97
12%
The cheapest time to fly to Seattle–Tacoma International
Ready to jet to Seattle–Tacoma International on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Last-Minute Flights from London to Seattle–Tacoma International
Need to get to Seattle–Tacoma International ASAP? Even if you're booking a flight on short notice, there are often last-minute deals available:
Next 2 weeks deals
Last Minute Flight Deals
Find last minute flight deals departing in the next two weeks from $339.
⌛ Last-Minute
London - SEA
A great last-minute steal for a cross-country flight.
Found 1 week ago
$49230
round-trip
⌛ Last-Minute
London - SEA
A great last-minute steal for a cross-country flight.
Found 1 week ago
$339
round-trip
Tip: If you don’t see your city listed, try a quick search anyway – new deals appear daily. Airlines sometimes slash prices a few days before departure to avoid empty seats.
Keep in mind, while last-minute fares can be lucky finds, booking about a month in advance generally yields cheaper flights on average. If you have flexibility, try to plan ahead. But if an unexpected trip to Seattle–Tacoma International pops up, check our site – you might get lucky with a sudden fare drop.
Facts About Flights from London to Seattle
To help you plan your journey, here are some quick Seattle flight facts and tips.
Seattle airports
Seattle boasts a trio of airports catering to diverse travel needs. Seattle–Tacoma International Airport (SEA), or SeaTac, is the region's primary international and domestic hub, offering a vast network of flights and airlines. For a unique travel experience, Kenmore Air Harbor Seaplane Base (LKE) provides scenic seaplane flights to the San Juan Islands and other destinations in the Pacific Northwest. Boeing Field (BFI), officially King County International Airport, primarily serves cargo, private, and corporate aviation, acting as a reliever airport for SeaTac.
Seattle–Tacoma International (SEA)
Seattle, United States
Kenmore Air Harbor Seaplane Base (LKE)
Seattle, United States
Boeing Field (BFI)
Seattle, United States
Pro tip: search “Seattle (Any)” to see fares to all Seattle airports – sometimes one is cheaper than the others on your dates.
Insights for flights to Seattle–Tacoma International
Cheapest airport
Seattle-Tacoma International Airport (SEA)
Welcome to Seattle-Tacoma International Airport (SEA), your gateway to the Emerald City! SEA is known for its stunning views of the Olympic Mountains and Puget Sound, as well as its commitment to sustainability, making your arrival both scenic and eco-friendly.
Nonstop vs. 1-stop
50+ cities
Flights through Seattle connect you to over 50 cities, making it a key secondary airport for reaching destinations across North America and beyond! Popular routes include connections to Anchorage, Vancouver, and even some transpacific destinations.
Number of airlines
30+ airlines
Over 30 airlines operate flights in and out of Seattle, offering a variety of options for travelers; some popular choices include Alaska Airlines, Delta, and JetBlue.
Typical price range (round-trip)
Flights to Seattle: $75 - $600
Generally, you can find flights to Seattle ranging from $75 to $600. Prices tend to increase during the peak summer travel season and around major holidays due to higher demand. Keep an eye out for potential deals during the shoulder seasons (spring and fall) for better rates!
Flight frequency
400+ flights
Flights to Seattle operate frequently, with several flights departing daily from major airports. You'll find flights are more frequent during peak seasons like summer and holidays, as well as during typical business travel times during the week.
SEA Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
SEA airport insights
Best days to catch a deal
Sun, Thur
Based on the provided data, Saturday and Friday appear to be the best days to find flight deals from Seattle–Tacoma International airport. Saturday had 42 of the cheapest deals while Friday had 38.
Avg. deal survival time
19.9 hours
Deals from Seattle–Tacoma International Airport last about 19.9 hours on average. Savvy travelers should book quickly to avoid missing out on these short-lived opportunities.
Rare deal frequency
6 deals
We found 6 rare deals for Seattle–Tacoma International Airport in the past month. These rare deals had an AI Deal Score of 90+, usually indicating mistake fares, special promotions, or ultra-discounts.
Average price drop
-65%
On average, flights from Seattle–Tacoma International experience a price drop of 64.6%. This means you have a good chance of finding deals if you monitor flights from this airport.
Next 4 weeks: deal forecast
Seattle Flight Forecast: Next Month
Based on current trends, flight prices from Seattle–Tacoma International are expected to remain stable next month. There are no significant price drops or increases anticipated as of April 3, 2026.
Top 5 biggest price drops (last 3 months)
Found on April 2
Saskatoon - SEA
$708 → $129
82%
Found on March 30
Denpasar - SEA
$3,200 → $601
81%
Found on April 1
Pendleton - SEA
$750 → $159
79%
Found on March 29
Cephalonia - SEA
$1,675 → $474
72%
Found on March 31
Grande Prairie - SEA
$880 → $245
72%
Check these nearby airports too
Looking for more options? These airports near SEA sometimes drop rare deals too:
Boeing Field (BFI)
~6 rare deals/month
Paine Field Everett (PAE)
~10 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially BFI and PAE for long-haul deal surprises.
When Is the Best Time to Fly from London to Seattle–Tacoma International
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to Seattle–Tacoma International:
Cheapest month
January
Cheapest month
If you're dreaming of visiting the Emerald City without emptying your wallet, January is your golden ticket! The weather might be a bit drizzly, but the lower prices and fewer crowds make it the perfect time to explore Seattle's indoor attractions. From the Museum of Pop Culture to the vibrant Pike Place Market, you'll find plenty to keep you entertained, all while saving some serious cash.
Best day to book
Tuesday
Best day to book
Ready to snag the best flight deal to Seattle? Tuesdays are statistically the sweet spot for booking flights! Airlines often release new deals early in the week, making Tuesday the prime time to pounce on discounted fares. So set a reminder, grab your favorite beverage, and get ready to book your Seattle adventure without breaking the bank.
Cheapest days to fly
Wednesday
Cheapest days to fly
To save even more money on your Seattle flight, consider flying on a Wednesday. Mid-week flights tend to be less expensive as business travel slows down. You can enjoy a less crowded airport experience and have more money in your pocket to experience Seattle's coffee scene!
Advance booking sweet spot
2 months
Advance booking sweet spot
For Seattle flights, booking about two months in advance is often the sweet spot. This timeframe typically allows you to find a balance between availability and affordability. Start your search early, keep an eye on prices, and get ready to explore the beautiful Pacific Northwest!
Seasonal considerations
Distinct
Seasonal considerations
Seattle experiences distinct seasonal travel patterns. Summer is peak season, with higher prices and more tourists, while winter sees fewer visitors and lower fares. Consider your priorities and travel during the shoulder seasons (spring or fall) for a mix of pleasant weather and reasonable prices.
TL;DR: To sum it up: January is the cheapest month to fly to Seattle, and Tuesdays are prime for booking. Aim to fly on a Wednesday and book about two months in advance for the best deals. Seattle's seasonal travel patterns are distinct, so plan accordingly for the best experience. Happy travels!
Seattle Airports & Ground Transportation
One big question for travelers is which Seattle airport to fly into. Here’s a quick guide to Seattle’s airports and how to get to the city from each:
Seattle-Tacoma International Airport (SEA)
Welcome to Seattle-Tacoma International Airport, or as locals call it, SeaTac! This bustling hub is your gateway to the Emerald City, offering stunning views of the Olympic Mountains on a clear day. Inside, you'll find a wide array of shops, restaurants, and even live music to keep you entertained while waiting for your flight. Getting downtown is a breeze, thanks to the Link light rail that connects the airport directly to the city center. For a smooth trip, consider using the airport's mobile app to navigate and track your flight.
Tip: Download the SeaTac app for real-time updates and easy navigation.
Snohomish County Airport (PAE)
Also known as Paine Field, this airport offers a convenient alternative to SeaTac, especially if you're heading to areas north of Seattle. Although smaller, it provides a more relaxed atmosphere and easier navigation. While amenities are more limited compared to SeaTac, you'll still find essential services and a few local eateries. Reaching downtown Seattle from Paine Field typically involves a combination of public transportation and ridesharing, so plan your route accordingly. Check out the Boeing Factory Tour located right next to the field!
Tip: Consider this airport if your destination is north of Seattle to avoid some traffic.
Other airports
Hey there, Seattle explorer! While Seattle-Tacoma International Airport (SEA) is your main hub, consider Paine Field (PAE) in Everett or even Bellingham International Airport (BLI) for potentially cheaper flights. The downside? Getting to Seattle from these airports requires navigating bus routes or renting a car, which can add travel time and costs. But hey, a little extra adventure never hurt anyone!
Airport transfers
Seattle offers a plethora of transportation choices from its airport, including the speedy Link light rail, convenient taxis and rideshares, and affordable shuttle services. The Link light rail is a great option for downtown access, while taxis and rideshares provide door-to-door service. Shuttle services offer a budget-friendly compromise, making your arrival smooth and stress-free.
What to Do in Seattle
Seattle isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in Seattle, organized by interest:
Sightseeing & landmarks
Seattle is a city brimming with iconic sights! From the towering Space Needle offering panoramic views to the bustling Pike Place Market, there's always something to capture your attention. Don't forget to explore the historic Pioneer Square and the scenic waterfront.
Arts & culture
Seattle's arts scene is as vibrant as its coffee! Dive into the Museum of Pop Culture (MoPOP) for a quirky experience or explore the Seattle Art Museum (SAM) for diverse collections. Catch a show at the historic Paramount Theatre for a touch of glamour!
Food & nightlife
Get ready for a culinary adventure in Seattle! From fresh seafood at Ivar's to the original Starbucks, your taste buds are in for a treat. As night falls, explore the lively bars and music venues in Belltown or Capitol Hill.
Shopping & fashion
Shopaholics, rejoice! Seattle offers a range of shopping experiences, from high-end boutiques in downtown to quirky independent stores in Ballard. Don't miss the flagship Nordstrom store for a true Seattle fashion experience or visit University Village for a collection of upscale retailers.
Nearby getaways
Need a break from the city? Seattle is surrounded by stunning natural beauty. Take a ferry to the San Juan Islands for whale watching, hike in the Cascade Mountains, or explore the Olympic National Park for breathtaking landscapes. These destinations provide amazing short trips!
No matter your interest – be it art, food, nightlife, or nature – Seattle has something for everyone. And the best part? Many events and attractions refresh throughout the year, so there’s always something new to experience each visit.
Events in Seattle This Month
abyecta with nightfeeder, mässgrief and fan club
Don't miss ABYECTA (fast punk from Chile) joined by Seattle's own NIGHTFEEDER, FAN CLUB & MASS GRIEF! Tickets are $15 in advance ($18.85 after fees) or $20 at the door ($25.14 after fees).
composition in the field - photography workshop
Attend photography workshops led by a professional photographer. These instructional sessions will cover camera controls followed by hands-on practice, guided by experienced DPA Instructors.
socialist soccer! 2pm – 4pm
Join fellow socialists for a fun soccer game! It's a great way to get outdoors, exercise, and connect with friendly socialists and soccer enthusiasts of all skill levels and genders.
socialist soccer! 2pm – 4pm
Join fellow socialists for a fun soccer game! It's a great way to get outdoors, exercise, and connect with friendly socialists and soccer enthusiasts of all skill levels and genders.
city of seattle capital consultant connection open house 2026
The City of Seattle is hosting an open house for consultants and small businesses, featuring City of Seattle Departments, prime consultants, and small business support services. Discover upcoming opportunities and resources.
Seattle Weather
Weather in Seattle
Thu, Apr 2
20%
11° 5°
20%
Fri, Apr 3
10%
12° 5°
10%
Sat, Apr 4
10%
15° 4°
10%
Sun, Apr 5
10%
18° 6°
10%
Mon, Apr 6
10%
20° 7°
10%
Tue, Apr 7
25%
10° 3°
25%
Wed, Apr 8
10%
12° 3°
10%
Here’s a quick look at the weather you can expect, plus this week’s forecast:
Seasons: Seattle experiences distinct seasons: Spring (March-May) brings increasing temperatures (5-15°C, 41-59°F) and blooming flowers; Summer (June-August) offers the warmest temperatures (15-25°C, 59-77°F) and sunny days, perfect for outdoor activities; Autumn (September-November) features colorful foliage and cooler temperatures (10-18°C, 50-64°F); Winter (December-February) is characterized by cold temperatures (0-10°C, 32-50°F), rain, and occasional snow.
Rain: Seattle is known for its frequent rainfall, especially during the fall and winter months (October to March), with occasional snow. While the rain can be persistent, it rarely causes significant travel disruptions, though some outdoor activities might be affected.
This week's forecast: This week in Seattle, expect a mix of mostly cloudy and partly cloudy days with a chance of rain, especially on Tuesday. Temperatures will range from 2.6-20.3°C (36.68-68.54°F), with warmer temperatures expected mid-week, and cooler, rainy weather towards the beginning of the week.
(We update the weather forecast weekly so you know what to expect during your travel week. Always check a day or two before your flight for the most current conditions.)
Frequently Asked Questions About Flights to Seattle–Tacoma International
(Have more questions?) Feel free to reach out or check our comprehensive Seattle–Tacoma International travel guide. We’re here to help make your flight to Seattle–Tacoma International (and the trip itself) as smooth as possible.
Pro Tips for Finding Cheap Flights to Seattle–Tacoma International
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on Seattle–Tacoma International flights:
Be a Flexible Flyer: Seattle's calling, but your dates shouldn't be set in stone! Mid-week flights and off-season travel are your secret weapons for snagging sweet deals. Think outside the weekend box for maximum savings!
Become a Booking Buffer: Patience, young grasshopper! Booking 2-3 months ahead for domestic flights to Seattle often unlocks better prices. Avoid the last-minute scramble, unless you enjoy paying a premium for the privilege.
Embrace the Red-Eye (or Early Bird): Early birds and night owls, this one's for you! Flights at dawn or dusk tend to be cheaper. Sacrifice a little sleep and watch those prices plummet. Coffee is your friend!
Consider Nearby Airports: Don't limit yourself to Seattle-Tacoma International (SEA)! Check out flights into Paine Field (PAE) in Everett. A little extra drive time could save you a bundle.
Mix and Match Airlines: Feeling adventurous? Booking your outbound and return flights with different airlines can sometimes lead to lower fares. Get creative and build your own budget-friendly itinerary!
Clear Your Browser's Cookies: Airlines are sneaky! Clear your browser cookies before searching for flights. Airlines might be tracking your searches and hiking prices accordingly. Stay one step ahead!
Use RatePunk's Price Alerts: Want to know a secret weapon? Set up price alerts on RatePunk! You'll get notified the instant prices drop, so you can pounce on the perfect Seattle flight deal before anyone else.
Bundle Up for Savings: Consider booking your flight and hotel together! Package deals can often save you money compared to booking separately. It's like a travel-sized surprise discount!
Follow Airlines on Social Media: Stay in the loop! Airlines often announce flash sales and special deals on their social media channels. A quick follow could lead to a serendipitous Seattle escape.
Redeem Those Rewards Points: Dust off your credit card rewards or frequent flyer miles! Now's the time to cash them in for a discounted or even free flight to Seattle. Those points are practically begging to be used!
By keeping these tips in mind, you’ll be well-equipped to find the cheapest flights to Seattle–Tacoma International and make the most of your travel budget. After all, the more you save on your flight, the more you can spend on a Broadway show, a nice meal, or an extra tour in Seattle–Tacoma International! 🎉✈️