SEA - CWL

$1,037 Find Cheap Flights from Seattle to Cardiff

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Cardiff departing on 10/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Cardiff

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cardiff, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cardiff, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Cardiff (SEA-CWL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle 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 round-trip flight deals from Seattle to Cardiff

Sat, Oct 11 - Sat, Oct 18
KLM Logo
5:40 pm - 9:15 amSEA-CWL
31h 35m1 stop
KLM Logo
5:35 pm - 4:05 pmCWL-SEA
30h 30m1 stop
$1,037KLM
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Fri, Oct 31 - Sun, Nov 9
Virgin Atlantic Logo
6:00 am - 9:50 amSEA-CWL
20h 50m2 stops
Virgin Atlantic Logo
5:30 pm - 4:59 pmCWL-SEA
31h 29m2 stops
$1,090Virgin Atlantic
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Sat, Sep 13 - Fri, Sep 19
KLM Logo
2:10 pm - 9:15 amSEA-CWL
35h 05m1 stop
KLM Logo
5:15 pm - 4:05 pmCWL-SEA
30h 50m1 stop
$1,120KLM
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Sat, Oct 11 - Sat, Oct 18
Virgin Atlantic Logo
7:19 am - 9:15 amSEA-CWL
17h 56m2 stops
Virgin Atlantic Logo
5:35 pm - 11:50 amCWL-SEA
26h 15m1 stop
$1,125Virgin Atlantic
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Fri, Oct 31 - Sun, Nov 9
Virgin Atlantic Logo
4:00 pm - 4:55 pmSEA-CWL
17h 55m1 stop
Virgin Atlantic Logo
5:30 pm - 4:59 pmCWL-SEA
31h 29m2 stops
$1,130Virgin Atlantic
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Sat, Oct 11 - Sat, Oct 18
Logo
8:40 am - 8:10 pmSEA-CWL
27h 30m3 stops
Logo
9:00 am - 12:59 pmCWL-SEA
35h 59m3 stops
$1,163
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Sat, Sep 13 - Fri, Sep 19
KLM Logo
7:45 am - 9:15 amSEA-CWL
17h 30m2 stops
KLM Logo
5:15 pm - 4:05 pmCWL-SEA
30h 50m1 stop
$1,207KLM
Find Deal
Sat, Sep 13 - Fri, Sep 19
Logo
7:45 am - 9:15 amSEA-CWL
17h 30m2 stops
Logo
9:50 am - 8:16 pmCWL-SEA
18h 26m2 stops
$1,217
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
8:40 am - 8:10 pmSEA-CWL
27h 30m3 stops
Logo
9:00 am - 5:50 pmCWL-SEA
16h 50m2 stops
$1,250
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
8:20 pm - 11:30 amSEA-CWL
55h 10m2 stops
Logo
12:00 pm - 11:35 amCWL-SEA
55h 35m2 stops
$1,267
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Cardiff flights

Get data-powered insights and trends into flights from Seattle to Cardiff to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seattle to Cardiff?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seattle to Cardiff were found on KLM ($1,037) and Virgin Atlantic ($1,090).

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Good to know

Cheapest flight$1,037
Most popular time to fly and prices are also 1% lower on average.
Flight from Seattle to Cardiff

When to book flights from Seattle to Cardiff

Are your dates flexible? Find out the best times to travel from Seattle to Cardiff based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Cardiff

  • What is the cheapest flight from Seattle to Cardiff?

    In the last 3 days, the lowest price for a flight from Seattle to Cardiff was $1,037 for a round-trip ticket.

  • Do I need a passport to fly between Seattle and Cardiff?

    A passport is required to fly from Seattle to Cardiff.

  • Which aircraft models fly most regularly from Seattle to Cardiff?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Cardiff?

    SkyTeam is the only airline alliance operating flights between Seattle and Cardiff.

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Cardiff.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from Seattle 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 Seattle to Cardiff?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cardiff with an airline and back to Seattle with another airline. Booking your flights between Seattle and CWL can sometimes prove cheaper using this method.

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

Information on your arrival and departure airports

Seattle (SEA)
Cardiff (CWL)

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