Cheap flights from Seattle (SEA) to Cardiff (CWL)

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Home Flights Europe United Kingdom Wales Cardiff Cheap flights from Seattle to Cardiff

How to find the cheapest flight from
Seattle (SEA) to Cardiff (CWL)

All the information you need to plan the best SEA to CWL flight in 2022: compare Seattle to Cardiff flight prices with the expected peak season, weather and rainfall in Cardiff.
When is the cheapest time to fly from Seattle to Cardiff (SEA - CWL)?

When flying from Seattle to Cardiff, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 4% versus a flight in the morning.

What is the cheapest day to fly round-trip from Seattle to Cardiff?

Users have found that flying from Seattle to Cardiff on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Cheap flights from Seattle to Cardiff in August, September 2022

The best prices found for SEA to CWL flights for August, September
14 Sep - 30 Sep
$1,140pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
   
2 STOPS
SEA
Seattle/Tacoma Intl
14 Sep - 30 Sep
$1,306pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
14 Sep - 30 Sep
$1,802pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Cardiff 2022 flight deals

Cheap flights to Cardiff from Seattle found for this year
3 Oct - 11 Oct
$777pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Oct - 11 Oct
$781pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Oct - 11 Oct
$791pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
   
2 STOPS
SEA
Seattle/Tacoma Intl

Cheap Delta flights from Seattle to Cardiff

3 Oct - 11 Oct
$777pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Oct - 11 Oct
$781pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Oct - 11 Oct
$791pp
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
Delta
   
2 STOPS
SEA
Seattle/Tacoma Intl

Cheap KLM flights from Seattle to Cardiff

21 Oct - 28 Oct
$832pp
SEA
Seattle/Tacoma Intl
KLM
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Oct - 28 Oct
$842pp
SEA
Seattle/Tacoma Intl
KLM
   
2 STOPS
CWL
Cardiff Wales
CWL
Cardiff Wales
KLM
   
2 STOPS
SEA
Seattle/Tacoma Intl
18 Aug - 27 Aug
$2,378pp
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
CWL
Cardiff Wales
CWL
Cardiff Wales
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Cardiff</span> flights.

Flight FAQs

From Seattle to Cardiff

Which airlines flying from Seattle/Tacoma Intl to Cardiff Wales have flexible changes due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to Cardiff Wales have new flexible policies in place due to COVID-19. KLM is one of the carriers where you may find flexible change policies. You can use our site to filter for airlines like KLM with this kind of flexibility.

Can I find flights from Seattle to Cardiff for under $800 on Cheapflights?

Yes, there are multiple flights from Seattle to Cardiff for under $800. The cheapest flight booked recently is on Delta for just $777, but on average you can expect to pay $1,356.

What are the cheapest flights from Seattle to Cardiff?

Looking for the cheapest flight from Seattle to Cardiff? While on average our users pay $780, our data indicates the cheapest price to be $780. The most popular route (Seattle/Tacoma Intl - Cardiff Wales), is priced around $777.

Related searches

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COVID Restrictions

View COVID Travel Restrictions for Cardiff, Wales

Do I need a COVID test to fly to Cardiff from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Cardiff Wales

Most visitors from Seattle/Tacoma Intl can enter Cardiff Wales without restrictions.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Cardiff Wales.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Cardiff Wales.

Do I need a test to fly back to Seattle from Cardiff?

Returning to Seattle/Tacoma Intl from Cardiff Wales

COVID-19 testing requirements
Visitors from Cardiff Wales are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Cardiff Wales are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Cardiff, Wales

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Home Flights Europe United Kingdom Wales Cardiff Cheap flights from Seattle to Cardiff