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Cheap flights from Washington to Cardiff from £657

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CWL
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Washington to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£657
2/3-9/3
  • 2/3-9/3
  • 3 total stops
  • 40h 30m total
  • Washington to Cardiff
Search Deals

Find flight deals from Washington to Cardiff

Cheapest flights from Washington to Cardiff
Explore the most affordable flight options available from Washington to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 2/306:15SEA - CWL
2 stops22h 35mMultiple Airlines
Sun 9/308:20CWL - SEA
1 stop17h 55mMultiple Airlines
Deal found 16/1£657
Mon 3/314:10SEA - CWL
1 stop18h 45mKLM
Mon 10/310:20CWL - SEA
1 stop33h 20mKLM
Deal found 17/1£723
Sun 2/322:29SEA - CWL
2 stops27h 26mVirgin Atlantic
Sun 9/317:25CWL - SEA
1 stop26h 15mVirgin Atlantic
Deal found 16/1£761
Mon 8/909:30SEA - CWL
2 stops23h 15mDelta
Fri 19/909:50CWL - SEA
1 stop14h 20mDelta
Deal found 17/1£838

Find flights from Washington to Cardiff within your budget

Customise your flight search to find flights from Washington to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Sun 2/3

06:15-12:50

2 stops22h 35m

Cardiff Wales

Sun 9/3

08:20-18:15

1 stop17h 55m

£657

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Mon 3/3

14:10-16:55

1 stop18h 45m

Cardiff Wales

Mon 10/3

10:20-12:40

1 stop33h 20m

£723

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Sun 2/3

22:29-09:55

2 stops27h 26m

Cardiff Wales

Sun 9/3

17:25-12:40

1 stop26h 15m

£761

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Best time to book a flight from Washington to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Washington with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington to Cardiff

Get recent, data-driven insights about flights from Washington to Cardiff including ideal travel times, pricing trends, and more.

Rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

Temperature in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 17 January 2025.
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
664 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Washington to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cardiff from Washington?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Washington to Cardiff.

  • Can I find deals for flights from Washington to Cardiff that include hotel bookings?

    Yes. In addition to deals on Washington to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Cardiff.

  • Can I find deals for business class flights from Washington to Cardiff?

    Yes. Cheapflights offers flight deals from Washington to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from State of Washington to Cardiff (average of £169). Flying from State of Washington to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington?

Book flights to Washington if you plan to visit one of these locations
Barry
Bridgend

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington to Cardiff, users can toggle the no change fees filter when performing a flight search.

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