Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Cardiff from £701

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
08:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
24h 35m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
Delta Logo
10:20 - 11:50CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
33h 30m1 stop Amsterdam Schiphol
£701Delta
Wed, 2 Dec - Mon, 7 Dec
KLM Logo
07:22 - 09:50SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
19h 28m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
KLM Logo
10:20 - 22:05CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
19h 45m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£703KLM
Tue, 27 Oct - Tue, 3 Nov
Delta Logo
14:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 35m1 stop Amsterdam Schiphol
Delta Logo
10:20 - 11:50CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
33h 30m1 stop Amsterdam Schiphol
£704Delta
Tue, 19 Jan - Thu, 28 Jan
Delta Logo
15:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 35m1 stop Amsterdam Schiphol
Delta Logo
10:20 - 22:05CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
19h 45m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£705Delta
Tue, 27 Oct - Tue, 3 Nov
Delta Logo
11:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
21h 35m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
10:20 - 11:50CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
33h 30m1 stop Amsterdam Schiphol
£708Delta
Tue, 19 Jan - Wed, 27 Jan
Delta Logo
07:15 - 09:50SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
10:20 - 16:59CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
38h 39m2 stops Amsterdam Schiphol Salt Lake City
£708Delta
Wed, 2 Dec - Mon, 7 Dec
Delta Logo
14:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 35m1 stop Amsterdam Schiphol
Delta Logo
10:20 - 22:05CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
19h 45m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£711Delta
Tue, 19 Jan - Fri, 29 Jan
Delta Logo
09:00 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
24h 00m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
10:20 - 22:05CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
19h 45m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£715Delta
Tue, 19 Jan - Tue, 26 Jan
Multiple Airlines Logo
15:25 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 35m1 stop Amsterdam Schiphol
Multiple Airlines Logo
17:30 - 11:47CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
26h 17m1 stop Amsterdam Schiphol
£720Multiple Airlines
Tue, 27 Oct - Tue, 3 Nov
Delta Logo
11:50 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
21h 10m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
Delta Logo
10:20 - 23:54CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
21h 34m2 stops Amsterdam Schiphol Minneapolis St Paul
£745Delta
Wed, 2 Dec - Sun, 6 Dec

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Seattle to Cardiff

Our best Delta deals on Seattle to Cardiff flight tickets
Delta
2 Dec
SEA08:25Seattle/Tacoma Intl
24h 35m
2 stops
CWL17:00Cardiff Wales
7 Dec
CWL10:20Cardiff Wales
33h 30m
1 stop
SEA11:50Seattle/Tacoma Intl
£701
Delta
19 Jan
SEA14:25Seattle/Tacoma Intl
18h 35m
1 stop
CWL17:00Cardiff Wales
28 Jan
CWL10:20Cardiff Wales
33h 30m
1 stop
SEA11:50Seattle/Tacoma Intl
£704
Delta
27 Oct
SEA15:25Seattle/Tacoma Intl
18h 35m
1 stop
CWL17:00Cardiff Wales
3 Nov
CWL10:20Cardiff Wales
19h 45m
2 stops
SEA22:05Seattle/Tacoma Intl
£705

Virgin Atlantic flights from Seattle to Cardiff

Our best Virgin Atlantic deals on Seattle to Cardiff flight tickets
Virgin Atlantic
25 Jan
SEA06:05Seattle/Tacoma Intl
19h 45m
2 stops
CWL09:50Cardiff Wales
30 Jan
CWL17:30Cardiff Wales
26h 20m
1 stop
SEA11:50Seattle/Tacoma Intl
£824
Virgin Atlantic
30 Oct
SEA15:25Seattle/Tacoma Intl
18h 35m
1 stop
CWL17:00Cardiff Wales
6 Nov
CWL17:30Cardiff Wales
26h 17m
1 stop
SEA11:47Seattle/Tacoma Intl
£1,251
Virgin Atlantic
22 Nov
SEA07:15Seattle/Tacoma Intl
18h 35m
2 stops
CWL09:50Cardiff Wales
27 Nov
CWL17:30Cardiff Wales
31h 21m
2 stops
SEA16:51Seattle/Tacoma Intl
£1,261

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 2/12

08:25-17:00

2 stops24h 35m

Cardiff Wales

Mon 7/12

10:20-11:50

1 stop33h 30m

£701

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 27/10

07:22-09:50

2 stops19h 28m

Cardiff Wales

Tue 3/11

10:20-22:05

2 stops19h 45m

£703

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 19/1

14:25-17:00

1 stop18h 35m

Cardiff Wales

Thu 28/1

10:20-11:50

1 stop33h 30m

£704
Fastest return journey

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 27/10

15:25-17:00

1 stop18h 35m

Cardiff Wales

Tue 3/11

10:20-22:05

2 stops19h 45m

£705

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 19/1

11:25-17:00

2 stops21h 35m

Cardiff Wales

Wed 27/1

10:20-11:50

1 stop33h 30m

£708

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 2/12

07:15-09:50

2 stops18h 35m

Cardiff Wales

Mon 7/12

10:20-16:59

2 stops38h 39m

£708

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 19/1

14:25-17:00

1 stop18h 35m

Cardiff Wales

Fri 29/1

10:20-22:05

2 stops19h 45m

£711

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 19/1

09:00-17:00

2 stops24h 00m

Cardiff Wales

Tue 26/1

10:20-22:05

2 stops19h 45m

£715

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Tue 27/10

15:25-17:00

1 stop18h 35m

Cardiff Wales

Tue 3/11

17:30-11:47

1 stop26h 17m

£720

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 2/12

11:50-17:00

2 stops21h 10m

Cardiff Wales

Sun 6/12

10:20-23:54

2 stops21h 34m

£745

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Seattle to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to Cardiff (SEA to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Cardiff

Best price found

£701

Fastest flight time

18h 35m

Direct flights

None
The best flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £701
The fastest flight from Seattle to Cardiff takes 18h 35m
There are no direct flights from Seattle to Cardiff. There are no popular flight routes from Seattle to Cardiff.
Search flight deals

Frequently asked questions about flying from Seattle to Cardiff

  • How far is Seattle/Tacoma Intl to Cardiff Wales by plane?

    Seattle/Tacoma Intl and Cardiff Wales are 4700.6 mi apart from one another. Typically, this will take 18h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Cardiff Wales Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Cardiff Wales Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Seattle to Cardiff

  • How do I get Price Alerts for flights from Seattle to Cardiff?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from Cardiff. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Seattle to Cardiff 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?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Cardiff?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cardiff from Seattle.

Can I find flights from Seattle to Cardiff with flexible booking policies on momondo?

All flight searches from Seattle to Cardiff on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Cardiff?

Once all potential Seattle to Cardiff flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Cardiff right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Cardiff trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 16/10
Fri 23/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport