Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Cardiff from £532

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Cardiff departing on 5/1. 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
'This year, momondo is the #1 place for airfares on the internet.'
Voted winner of Europe's Best Travel App 2023
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.

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.
15:15 - 16:55SEA-CWL
18h 40m1 stop
17:15 - 16:05CWL-SEA
30h 50m1 stop
£641KLM
Find Deal
Tue, 25 Mar - Mon, 31 Mar
14:09 - 16:55SEA-CWL
18h 46m1 stop
17:25 - 11:50CWL-SEA
26h 25m1 stop
£675KLM
Find Deal
Thu, 9 Jan - Tue, 14 Jan
07:25 - 09:55SEA-CWL
18h 30m2 stops
10:25 - 11:50CWL-SEA
33h 25m1 stop
£679KLM
Find Deal
Thu, 9 Jan - Tue, 14 Jan
07:20 - 09:50SEA-CWL
19h 30m2 stops
09:45 - 16:05CWL-SEA
14h 20m1 stop
£679Delta
Find Deal
Tue, 25 Mar - Mon, 31 Mar
07:25 - 09:55SEA-CWL
18h 30m2 stops
10:25 - 22:25CWL-SEA
20h 00m2 stops
£687KLM
Find Deal
Thu, 9 Jan - Tue, 14 Jan
07:20 - 09:50SEA-CWL
19h 30m2 stops
09:45 - 22:25CWL-SEA
20h 40m2 stops
£687Delta
Find Deal
Tue, 25 Mar - Mon, 31 Mar
21:20 - 16:55SEA-CWL
35h 35m2 stops
10:20 - 22:25CWL-SEA
20h 05m2 stops
£895Virgin Atlantic
Find Deal
Sun, 5 Jan - Sun, 12 Jan
11:55 - 16:55SEA-CWL
45h 00m2 stops
17:25 - 22:25CWL-SEA
37h 00m2 stops
£933Virgin Atlantic
Find Deal
Sat, 4 Jan - Sat, 11 Jan
19:00 - 09:55SEA-CWL
30h 55m2 stops
17:25 - 11:50CWL-SEA
26h 25m1 stop
Sun, 5 Jan - Sun, 12 Jan
19:00 - 09:55SEA-CWL
30h 55m2 stops
10:20 - 22:25CWL-SEA
20h 05m2 stops
Sun, 5 Jan - Sun, 12 Jan
21:20 - 16:55SEA-CWL
35h 35m2 stops
£532Virgin Atlantic
Find Deal
Sun, 5 Jan
14:14 - 16:55SEA-CWL
18h 41m1 stop
£580Virgin Atlantic
Find Deal
Sun, 5 Jan
07:00 - 16:20SEA-CWL
25h 20m3 stops
Sun, 5 Jan

KLM flights from Seattle to Cardiff

Our best KLM deals on Seattle to Cardiff flight tickets
KLM
25 Mar
SEA15:15Seattle/Tacoma Intl
18h 40m
1 stop
CWL16:55Cardiff Wales
31 Mar
CWL17:15Cardiff Wales
30h 50m
1 stop
SEA16:05Seattle/Tacoma Intl
KLM
9 Jan
SEA14:09Seattle/Tacoma Intl
18h 46m
1 stop
CWL16:55Cardiff Wales
14 Jan
CWL17:25Cardiff Wales
26h 25m
1 stop
SEA11:50Seattle/Tacoma Intl
KLM
9 Jan
SEA07:25Seattle/Tacoma Intl
18h 30m
2 stops
CWL09:55Cardiff Wales
14 Jan
CWL10:25Cardiff Wales
33h 25m
1 stop
SEA11:50Seattle/Tacoma Intl

Virgin Atlantic flights from Seattle to Cardiff

Our best Virgin Atlantic deals on Seattle to Cardiff flight tickets
Virgin Atlantic
5 Jan
SEA21:20Seattle/Tacoma Intl
35h 35m
2 stops
CWL16:55Cardiff Wales
12 Jan
CWL10:20Cardiff Wales
20h 05m
2 stops
SEA22:25Seattle/Tacoma Intl
Virgin Atlantic
4 Jan
SEA11:55Seattle/Tacoma Intl
45h 00m
2 stops
CWL16:55Cardiff Wales
11 Jan
CWL17:25Cardiff Wales
37h 00m
2 stops
SEA22:25Seattle/Tacoma Intl
Virgin Atlantic
6 Jan
SEA14:09Seattle/Tacoma Intl
18h 46m
1 stop
CWL16:55Cardiff Wales
13 Jan
CWL17:25Cardiff Wales
26h 25m
1 stop
SEA11:50Seattle/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?

Virgin Atlantic 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

£532

Fastest flight time

17h 45m

Direct flights

None

Airports in Cardiff

1 airport
The best one-way flight to Cardiff from Seattle in the past 72 hours is £532. The best return flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £641.
The fastest flight from Seattle to Cardiff takes 17h 45m
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 17h 45m 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.


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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Wed 27/11
Wed 4/12
Email me momondo's favourite deals

Find better results for your trip to the United Kingdom

Airports servicing Wales