£758 Find Cheap Flights from Washington to Cardiff – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Cardiff departing on 31/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Washington to Cardiff

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington to Cardiff that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Washington to Cardiff

Sat, 5 Sep - Sat, 12 Sep
Multiple Airlines Logo
19:10 - 21:20SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 10m1 stop Dublin
Multiple Airlines Logo
11:35 - 09:40CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
30h 05m2 stops Toronto Pearson Intl Calgary
£816Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
Delta Logo
07:15 - 09:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
09:45 - 16:35CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
£889Delta
Tue, 1 Sep - Tue, 8 Sep
Delta Logo
07:15 - 09:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
09:45 - 23:55CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
22h 10m2 stops Amsterdam Schiphol Minneapolis St Paul
£897Delta
Sat, 26 Sep - Sat, 3 Oct
Multiple Airlines Logo
17:45 - 16:45SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
15h 00m1 stop Amsterdam Schiphol
Multiple Airlines Logo
09:45 - 22:03CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
20h 18m2 stops Amsterdam Schiphol Boston Logan Intl
£901Multiple Airlines
Sat, 26 Sep - Sat, 3 Oct
Delta Logo
07:15 - 09:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
09:45 - 23:20CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
21h 35m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£904Delta
Sat, 26 Sep - Sat, 3 Oct
KLM Logo
17:45 - 16:45SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
15h 00m1 stop Amsterdam Schiphol
KLM Logo
09:45 - 16:35CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
£954KLM
Sat, 5 Sep - Sat, 12 Sep
Delta Logo
07:15 - 09:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
09:45 - 22:03CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
20h 18m2 stops Amsterdam Schiphol Boston Logan Intl
£971Delta
Fri, 4 Sep - Sat, 12 Sep
Multiple Airlines Logo
07:59 - 10:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 16m1 stop Toronto Pearson Intl
Multiple Airlines Logo
11:35 - 19:13CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
15h 38m1 stop Toronto Pearson Intl
£1,015Multiple Airlines
Sat, 26 Sep - Sat, 3 Oct
Multiple Airlines Logo
10:50 - 21:20SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
26h 30m3 stops Vancouver Intl Calgary Dublin
Multiple Airlines Logo
12:00 - 11:35CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
55h 35m2 stops Belfast City London Heathrow
£1,030Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
Delta Logo
07:15 - 09:15SEA  Seattle/Tacoma Intl-CWL Cardiff Wales
18h 00m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
09:45 - 16:35CWL  Cardiff Wales-SEA Seattle/Tacoma Intl
14h 50m1 stop Amsterdam Schiphol
£1,058Delta
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FAQs for booking flights from Washington to Cardiff

  • How does KAYAK find such low prices on flights from Washington to Cardiff?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Cardiff.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Cardiff?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Cardiff?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Cardiff with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Cardiff?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cardiff from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Cardiff

Information on the airport you'll fly into in Cardiff

Cardiff (CWL)