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Cheap flights from Seattle to Cardiff from £685

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 1/4. 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

These are some of the best return flight deals from Seattle to Cardiff that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Cardiff.

Cheap last-minute flights

Planning a quick getaway from Seattle to Cardiff? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Cardiff, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Seattle to Cardiff

Find recent round-trip train or bus tickets from Seattle to Cardiff.

All round-trip flight deals to Cardiff

The cheapest plane tickets to Cardiff found on KAYAK recently.
17:30 - 16:45SEA-CWL
15h 15m1 stop
17:15 - 11:15CWL-SEA
26h 00m1 stop
£685KLM
Find Deal
Tue, 1 Apr - Thu, 10 Apr
07:20 - 09:15SEA-CWL
17h 55m2 stops
17:15 - 11:15CWL-SEA
26h 00m1 stop
£688KLM
Find Deal
Tue, 1 Apr - Thu, 10 Apr
07:35 - 09:15SEA-CWL
17h 40m2 stops
09:45 - 22:15CWL-SEA
20h 30m2 stops
£696KLM
Find Deal
Tue, 1 Apr - Thu, 10 Apr
19:20 - 09:50SEA-CWL
54h 30m2 stops
17:25 - 11:52CWL-SEA
26h 27m1 stop
£1,266
Find Deal
Fri, 13 Dec - Fri, 20 Dec
19:20 - 09:50SEA-CWL
54h 30m2 stops
17:25 - 11:20CWL-SEA
25h 55m2 stops
£1,284
Find Deal
Fri, 13 Dec - Fri, 20 Dec
08:50 - 09:50SEA-CWL
17h 00m2 stops
10:20 - 11:52CWL-SEA
33h 32m1 stop
£1,362
Find Deal
Fri, 13 Dec - Thu, 19 Dec
07:15 - 09:50SEA-CWL
18h 35m2 stops
10:20 - 22:25CWL-SEA
20h 05m2 stops
£1,385KLM
Find Deal
Fri, 13 Dec - Thu, 19 Dec
00:50 - 09:50SEA-CWL
25h 00m2 stops
10:20 - 22:25CWL-SEA
20h 05m2 stops
£1,562Delta
Find Deal
Thu, 12 Dec - Thu, 19 Dec
00:50 - 09:50SEA-CWL
25h 00m2 stops
10:20 - 22:25CWL-SEA
20h 05m2 stops
£1,636Delta
Find Deal
Thu, 12 Dec - Fri, 20 Dec
06:00 - 09:50SEA-CWL
19h 50m2 stops
10:20 - 22:24CWL-SEA
20h 04m2 stops
£1,822Delta
Find Deal
Sat, 28 Dec - Sat, 4 Jan
SEA-CWL
4709 mimulti-stop
Multiple Airlines
Find Deal

KLM flights from Seattle to Cardiff

Our best KLM deals on Seattle to Cardiff flight tickets
KLM
1 Apr
SEA17:30Seattle/Tacoma Intl
15h 15m
1 stop
CWL16:45Cardiff Wales
10 Apr
CWL17:15Cardiff Wales
26h 00m
1 stop
SEA11:15Seattle/Tacoma Intl
KLM
1 Apr
SEA07:20Seattle/Tacoma Intl
17h 55m
2 stops
CWL09:15Cardiff Wales
10 Apr
CWL17:15Cardiff Wales
26h 00m
1 stop
SEA11:15Seattle/Tacoma Intl
KLM
1 Apr
SEA07:35Seattle/Tacoma Intl
17h 40m
2 stops
CWL09:15Cardiff Wales
10 Apr
CWL09:45Cardiff Wales
20h 30m
2 stops
SEA22:15Seattle/Tacoma Intl

Delta flights from Seattle to Cardiff

Our best Delta deals on Seattle to Cardiff flight tickets
Delta
12 Dec
SEA00:50Seattle/Tacoma Intl
25h 00m
2 stops
CWL09:50Cardiff Wales
19 Dec
CWL10:20Cardiff Wales
20h 05m
2 stops
SEA22:25Seattle/Tacoma Intl
Delta
12 Dec
SEA00:50Seattle/Tacoma Intl
25h 00m
2 stops
CWL09:50Cardiff Wales
20 Dec
CWL10:20Cardiff Wales
20h 05m
2 stops
SEA22:25Seattle/Tacoma Intl
Delta
28 Dec
SEA06:00Seattle/Tacoma Intl
19h 50m
2 stops
CWL09:50Cardiff Wales
4 Jan
CWL10:20Cardiff Wales
20h 04m
2 stops
SEA22:24Seattle/Tacoma Intl

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 Seattle to Cardiff flight route?

Seattle/Tacoma Intl - Cardiff Wales. Fly from Seattle/Tacoma Intl to Cardiff Wales for the best Seattle - Cardiff flight prices

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

£685

Fastest flight time

15h 15m

Direct flights

None

Airports in Cardiff

1 airport
The best flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £685
The fastest flight from Seattle to Cardiff takes 15h 15m
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 15h 15m 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.


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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Airports servicing Wales