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Cheap flights from Seattle to Cardiff from £223

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.
Virgin Atlantic Logo
22:52 - 09:50SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
26h 58m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Virgin Atlantic Logo
17:30 - 11:47CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
26h 17m1 stop Amsterdam Schiphol
£818Virgin Atlantic
Mon, 16 Nov - Mon, 23 Nov
Virgin Atlantic Logo
19:55 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
37h 05m2 stops Salt Lake City Amsterdam Schiphol
Virgin Atlantic Logo
17:30 - 23:57CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
38h 27m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£819Virgin Atlantic
Mon, 16 Nov - Mon, 23 Nov
Delta Logo
14:35 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 25m1 stop Amsterdam Schiphol
Delta Logo
10:20 - 11:47CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
33h 27m1 stop Amsterdam Schiphol
£825Delta
Mon, 16 Nov - Mon, 23 Nov
KLM Logo
14:35 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 25m1 stop Amsterdam Schiphol
KLM Logo
17:30 - 11:47CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
26h 17m1 stop Amsterdam Schiphol
£827KLM
Mon, 9 Nov - Mon, 16 Nov
KLM Logo
11:45 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
21h 15m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
KLM Logo
17:30 - 11:47CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
26h 17m1 stop Amsterdam Schiphol
£830KLM
Mon, 9 Nov - Mon, 16 Nov
Virgin Atlantic Logo
08:30 - 09:45SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
17h 15m2 stops Minneapolis St Paul Amsterdam Schiphol
Virgin Atlantic Logo
17:30 - 16:51CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
31h 21m2 stops Amsterdam Schiphol Los Angeles
£834Virgin Atlantic
Mon, 9 Nov - Mon, 16 Nov
Delta Logo
11:55 - 09:50SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
37h 55m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
10:20 - 22:55CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
44h 35m2 stops Amsterdam Schiphol Boston Logan Intl
£839Delta
Wed, 9 Dec - Tue, 15 Dec
Delta Logo
14:35 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 25m1 stop Amsterdam Schiphol
Delta Logo
10:20 - 23:09CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
44h 49m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£855Delta
Wed, 9 Dec - Mon, 14 Dec
Delta Logo
06:00 - 09:50SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
43h 50m2 stops Minneapolis St Paul Amsterdam Schiphol
Delta Logo
10:20 - 10:18CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
55h 58m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£865Delta
Wed, 9 Dec - Wed, 16 Dec
KLM Logo
14:35 - 17:00SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 25m1 stop Amsterdam Schiphol
KLM Logo
17:30 - 11:50CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
26h 20m1 stop Amsterdam Schiphol
£867KLM
Wed, 9 Dec - Mon, 14 Dec

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Virgin Atlantic flights from Seattle to Cardiff

Our best Virgin Atlantic deals on Seattle to Cardiff flight tickets
Virgin Atlantic
16 Nov
SEA22:52Seattle/Tacoma Intl
26h 58m
2 stops
CWL09:50Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
26h 17m
1 stop
SEA11:47Seattle/Tacoma Intl
£818
Virgin Atlantic
16 Nov
SEA19:55Seattle/Tacoma Intl
37h 05m
2 stops
CWL17:00Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
38h 27m
2 stops
SEA23:57Seattle/Tacoma Intl
£819
Virgin Atlantic
9 Nov
SEA08:30Seattle/Tacoma Intl
17h 15m
2 stops
CWL09:45Cardiff Wales
16 Nov
CWL17:30Cardiff Wales
31h 21m
2 stops
SEA16:51Seattle/Tacoma Intl
£834

Delta flights from Seattle to Cardiff

Our best Delta deals on Seattle to Cardiff flight tickets
Delta
16 Nov
SEA14:35Seattle/Tacoma Intl
18h 25m
1 stop
CWL17:00Cardiff Wales
23 Nov
CWL10:20Cardiff Wales
33h 27m
1 stop
SEA11:47Seattle/Tacoma Intl
£825
Delta
9 Dec
SEA11:55Seattle/Tacoma Intl
37h 55m
2 stops
CWL09:50Cardiff Wales
15 Dec
CWL10:20Cardiff Wales
44h 35m
2 stops
SEA22:55Seattle/Tacoma Intl
£839
Delta
9 Dec
SEA14:35Seattle/Tacoma Intl
18h 25m
1 stop
CWL17:00Cardiff Wales
15 Dec
CWL10:20Cardiff Wales
38h 39m
2 stops
SEA16:59Seattle/Tacoma Intl
£855

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 16/11

22:52-09:50

2 stops26h 58m

Cardiff Wales

Mon 23/11

17:30-11:47

1 stop26h 17m

£818

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 16/11

19:55-17:00

2 stops37h 05m

Cardiff Wales

Mon 23/11

17:30-23:57

2 stops38h 27m

£819

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 16/11

14:35-17:00

1 stop18h 25m

Cardiff Wales

Mon 23/11

10:20-11:47

1 stop33h 27m

£825
Fastest return journey

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 9/11

14:35-17:00

1 stop18h 25m

Cardiff Wales

Mon 16/11

17:30-11:47

1 stop26h 17m

£827

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 9/11

11:45-17:00

2 stops21h 15m

Cardiff Wales

Mon 16/11

17:30-11:47

1 stop26h 17m

£830

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Mon 9/11

08:30-09:45

2 stops17h 15m

Cardiff Wales

Mon 16/11

17:30-16:51

2 stops31h 21m

£834

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 9/12

11:55-09:50

2 stops37h 55m

Cardiff Wales

Tue 15/12

10:20-22:55

2 stops44h 35m

£839

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 9/12

14:35-17:00

1 stop18h 25m

Cardiff Wales

Mon 14/12

10:20-23:09

2 stops44h 49m

£855

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 9/12

06:00-09:50

2 stops43h 50m

Cardiff Wales

Wed 16/12

10:20-10:18

2 stops55h 58m

£865

SeattleCardiff

SEA Seattle/Tacoma Intl - CWL Cardiff Wales

SEACWL

Seattle/Tacoma Intl

Wed 9/12

14:35-17:00

1 stop18h 25m

Cardiff Wales

Mon 14/12

17:30-11:50

1 stop26h 20m

£867

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from Seattle to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Cardiff Wales?

KLM and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Cardiff Wales

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

£223

Fastest flight time

37h 10m

Direct flights

None
The best one-way flight to Cardiff from Seattle in the past 72 hours is £223. The best return flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £818.
The fastest flight from Seattle to Cardiff takes 37h 10m
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 37h 10m 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.

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.

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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport