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Cheap flights from Seattle to Cardiff from £670

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Cardiff departing on 18/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Seattle to Cardiff

Cheap return flights

 Logo
19:35 - 15:55SEA-CWL
12h 20m1 stop
 Logo
13:10 - 17:50CWL-SEA
12h 40m1 stop
Mon, 18 Aug - Mon, 25 Aug
KLM Logo
09:25 - 09:15SEA-CWL
15h 50m2 stops
KLM Logo
17:15 - 11:35CWL-SEA
26h 20m1 stop
£711KLM
Find Deal
Mon, 18 Aug - Mon, 25 Aug
Delta Logo
07:10 - 09:15SEA-CWL
18h 05m2 stops
Delta Logo
09:50 - 22:25CWL-SEA
20h 35m2 stops
£728Delta
Find Deal
Mon, 18 Aug - Mon, 25 Aug
KLM Logo
14:10 - 09:15SEA-CWL
35h 05m1 stop
KLM Logo
17:15 - 11:45CWL-SEA
26h 30m1 stop
£753KLM
Find Deal
Sat, 13 Sep - Fri, 19 Sep
KLM Logo
14:10 - 09:15SEA-CWL
35h 05m1 stop
KLM Logo
17:15 - 16:05CWL-SEA
30h 50m1 stop
£754KLM
Find Deal
Sat, 13 Sep - Fri, 19 Sep
KLM Logo
07:45 - 09:15SEA-CWL
17h 30m2 stops
KLM Logo
17:15 - 16:05CWL-SEA
30h 50m1 stop
£757KLM
Find Deal
Sat, 13 Sep - Fri, 19 Sep
 Logo
05:30 - 10:35SEA-CWL
21h 05m3 stops
 Logo
09:00 - 09:21CWL-SEA
32h 21m3 stops
Sat, 16 Aug - Sat, 23 Aug
 Logo
07:45 - 09:15SEA-CWL
17h 30m2 stops
 Logo
09:50 - 20:16CWL-SEA
18h 26m2 stops
Sat, 13 Sep - Fri, 19 Sep
Delta Logo
06:10 - 09:15SEA-CWL
19h 05m2 stops
Delta Logo
09:50 - 15:55CWL-SEA
14h 05m1 stop
£913Delta
Find Deal
Sat, 16 Aug - Sat, 23 Aug
Delta Logo
06:10 - 09:15SEA-CWL
19h 05m2 stops
Delta Logo
09:50 - 20:24CWL-SEA
18h 34m2 stops
£920Delta
Find Deal
Sat, 16 Aug - Sat, 23 Aug

KLM flights from Seattle to Cardiff

Our best KLM deals on Seattle to Cardiff flight tickets
KLM
18 Aug
SEA09:25Seattle/Tacoma Intl
15h 50m
2 stops
CWL09:15Cardiff Wales
25 Aug
CWL17:15Cardiff Wales
26h 20m
1 stop
SEA11:35Seattle/Tacoma Intl
KLM
13 Sept
SEA14:10Seattle/Tacoma Intl
35h 05m
1 stop
CWL09:15Cardiff Wales
19 Sept
CWL17:15Cardiff Wales
26h 30m
1 stop
SEA11:45Seattle/Tacoma Intl
KLM
13 Sept
SEA14:10Seattle/Tacoma Intl
35h 05m
1 stop
CWL09:15Cardiff Wales
19 Sept
CWL17:15Cardiff Wales
30h 50m
1 stop
SEA16:05Seattle/Tacoma Intl

Delta flights from Seattle to Cardiff

Our best Delta deals on Seattle to Cardiff flight tickets
Delta
18 Aug
SEA07:10Seattle/Tacoma Intl
18h 05m
2 stops
CWL09:15Cardiff Wales
25 Aug
CWL09:50Cardiff Wales
20h 35m
2 stops
SEA22:25Seattle/Tacoma Intl
Delta
16 Aug
SEA06:10Seattle/Tacoma Intl
19h 05m
2 stops
CWL09:15Cardiff Wales
23 Aug
CWL09:50Cardiff Wales
14h 05m
1 stop
SEA15:55Seattle/Tacoma Intl
Delta
16 Aug
SEA06:10Seattle/Tacoma Intl
19h 05m
2 stops
CWL09:15Cardiff Wales
23 Aug
CWL09:50Cardiff Wales
18h 34m
2 stops
SEA20:24Seattle/Tacoma Intl

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 is the most popular carrier 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

£783

Fastest flight time

12h 20m

Direct flights

None

Airports in Cardiff

1 airport
The best one-way flight to Cardiff from Seattle in the past 72 hours is £783. The best return flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £670.
The fastest flight from Seattle to Cardiff takes 12h 20m
There are no direct flights from Seattle to Cardiff. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Cardiff Wales Airport.
There is 1 airport near Cardiff: Cardiff Wales (CWL)

  • 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 12h 20m 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

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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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Airports servicing Wales