Cheap flights from Cardiff to Seattle

Return
Economy
Cardiff (CWL)
Seattle (SEA)
Depart
Return
Any month
Compare vs Cheapflights |

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

All the information you need to plan the best CWL to SEA flight in 2021: compare Cardiff to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
What is the cheapest day to fly return from Cardiff to Seattle?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Cardiff to Seattle?

Travellers have found it’s best to book a flight 52 days in advance to save up to 51% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Cardiff to Seattle 1-2 weeks in advance for as low as £445, or £583 for flights within the next 24 hours.

What is the cheapest month to fly from Cardiff to Seattle?

February is one of the best times of the year to fly to Seattle from Cardiff. Prices for February average £393 per person but you can even find prices for as low as £259. The most expensive prices can be found in the month of July. Opting for a February flight can save you 37% on your journey compared to booking in February

When is the cheapest time to fly from Cardiff to Seattle (CWL - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to Seattle as you normally would.

Related info for your journey

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

Flight FAQs

From Cardiff to Seattle

Are flight prices decreasing from Cardiff to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Cardiff and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

How popular is this flight route?

This flight path from Cardiff Cardiff Wales to Seattle/Tacoma Intl was viewed by 24 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Cardiff or Seattle?

When travelling, we recommend packing in preparation to handle common weather conditions. The rainfall in Cardiff is typically less than Seattle. We can gather that this will continue over the next 8 days.

Is Cardiff weather warmer or cooler than Seattle?

Temperatures around the 25 °Cs can be experienced in July. The weather in Seattle is hotter than in Cardiff. Plan for potential changes in flight availability as peak weather approaches in this location.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Cardiff to Seattle.
Today's exchange rate
£1 = $1.40
Average temperature for May in Seattle
19.0 °C
Avg rainfall for May in Seattle
45.0 mm

Airports servicing Cardiff

Airports servicing Seattle

Home North America USA Washington Seattle Cheap flights from Cardiff to Seattle
  • Return
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First