$763 Cheap Flights from Cardiff to Seattle
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Flights from Cardiff to Seattle
Cheap flight deals from Cardiff to Seattle Starting at $763
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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CWL 5:15 PM26h 30m1 stopsSEA 11:45 AMCardiff - Seattle | Mon, Apr 28 | Air France
SEA 6:10 PM31h 5m1 stopsCWL 9:15 AMSeattle - Cardiff | Mon, May 5 | KLM$763 $87613% OFF13% OFF$876 $763 -
CWL 5:15 PM26h 30m1 stopsSEA 11:45 AMCardiff - Seattle | Mon, Apr 28 | KLM
SEA 2:10 PM18h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Mon, May 5 | KLM$763 $87613% OFF13% OFF$876 $763 -
CWL 5:15 PM30h 45m1 stopsSEA 4:00 PMCardiff - Seattle | Mon, Apr 21 | Air France
SEA 6:10 PM14h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Mon, Apr 28 | Air France$767 $87613% OFF13% OFF$876 $767
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CWL 5:15 PM30h 45m1 stopsSEA 4:00 PMCardiff - Seattle | Mon, Apr 21 | KLM
SEA 6:10 PM14h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Mon, Apr 28 | KLM$76713% OFF$876 $767
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CWL 9:50 AM33h 55m1 stopsSEA 11:45 AMCardiff - Seattle | Wed, Apr 2 | Air France
SEA 6:10 PM31h 5m1 stopsCWL 9:15 AMSeattle - Cardiff | Wed, Apr 9 | KLM$7969% OFF$876 $796
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CWL 5:15 PM26h 30m1 stopsSEA 11:45 AMCardiff - Seattle | Wed, Apr 2 | KLM
SEA 6:10 PM14h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Wed, Apr 9 | KLM$7969% OFF$876 $796
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CWL 9:50 AM33h 55m1 stopsSEA 11:45 AMCardiff - Seattle | Mon, Mar 31 | KLM
SEA 2:10 PM18h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Mon, Apr 7 | KLM$7979% OFF$876 $797
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CWL 9:50 AM33h 55m1 stopsSEA 11:45 AMCardiff - Seattle | Mon, Mar 31 | Air France
SEA 5:50 PM31h 25m1 stopsCWL 9:15 AMSeattle - Cardiff | Mon, Apr 7 | KLM$7979% OFF$876 $797
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CWL 9:50 AM14h 10m1 stopsSEA 4:00 PMCardiff - Seattle | Thu, Apr 3 | KLM
SEA 6:10 PM14h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Thu, Apr 10 | KLM$7989% OFF$876 $798
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CWL 9:50 AM14h 10m1 stopsSEA 4:00 PMCardiff - Seattle | Thu, Apr 3 | Air France
SEA 6:10 PM14h 35m1 stopsCWL 4:45 PMSeattle - Cardiff | Thu, Apr 10 | Air France$7989% OFF$876 $798
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CWL 1:00 PM17h 25m1 stopsSEA Invalid DateCardiff - Seattle | Mon, Mar 24 | Normal Airline
SEA 3:00 PM6hNonstopCWL 4:00 PMSeattle - Cardiff | Wed, Mar 26 | Normal AirlineFind More FlightsFind More Flights
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CWL 10:25 AM33h 15m1 stopsSEA 12:40 PMCardiff - Seattle | Tue, Mar 25 | KLM$1,600 $1,91717% OFF17% OFF$1,917 $1,600
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CWL 10:25 AM33h 15m1 stopsSEA 12:40 PMCardiff - Seattle | Tue, Mar 25 | Virgin Atlantic$1,620 $1,91715% OFF15% OFF$1,917 $1,620 -
CWL 9:45 AM34h1 stopsSEA 11:45 AMCardiff - Seattle | Sat, Apr 26 | KLM$1,656 $1,91714% OFF14% OFF$1,917 $1,656
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CWL 5:35 PM26h 10m1 stopsSEA 11:45 AMCardiff - Seattle | Sat, Apr 12 | Virgin Atlantic$1,67013% OFF$1,917 $1,670
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CWL 9:50 AM33h 55m1 stopsSEA 11:45 AMCardiff - Seattle | Tue, Apr 1 | Air France$1,69312% OFF$1,917 $1,693
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CWL 9:45 AM14h 5m1 stopsSEA 3:50 PMCardiff - Seattle | Sat, May 3 | KLM$1,69811% OFF$1,917 $1,698
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CWL 9:50 AM14h 10m1 stopsSEA 4:00 PMCardiff - Seattle | Thu, Apr 3 | KLM$1,70011% OFF$1,917 $1,700
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CWL 5:35 PM26h 10m1 stopsSEA 11:45 AMCardiff - Seattle | Sat, Apr 12 | Air France$1,70911% OFF$1,917 $1,709
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CWL 9:45 AM14h 5m1 stopsSEA 3:50 PMCardiff - Seattle | Sat, May 3 | Virgin Atlantic$1,73010% OFF$1,917 $1,730
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CWL 9:50 AM14h 10m1 stopsSEA 4:00 PMCardiff - Seattle | Tue, Apr 1 | Virgin Atlantic$1,7449% OFF$1,917 $1,744
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CWL 1:00 PM17h 25m1 stopsSEA Invalid DateCardiff - Seattle | Mon, Mar 24 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Frequently Asked Questions
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When are flight tickets from Cardiff (CWL) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Cardiff to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Cardiff (CWL) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around $1,768. -
What is the transportation method from the main airport to downtown in Seattle?
- The distance from Seattle Tacoma Intl. Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
How to find a cheap flight from Cardiff to Seattle
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Cardiff to Seattle. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest Cardiff to Seattle ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Cardiff to Seattle for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $1600 for a one-way ticket on Tue, Mar 25.
Compare cheap Cardiff to Seattle flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Cardiff to Seattle. The most affordable airline currently operating on this route is KLM.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Cardiff to Seattle route to track ticket prices effortlessly—no need to check manually every day.
Don't miss out on cheap Cardiff to Seattle flight deals and promo codes.
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Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Cardiff to Seattle to access exclusive deals just for you.
Flight Info | Cardiff to Seattle
| Cheapest one-way flight price | $1,599 |
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| Off-season for travel | February |
| Peak season for travel | December |
| Flight distance | 7,583.01 km |
| Popular airline | Air France |
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