Flight information for Seattle to Cardiff
(SEA to CWL)
Find info about flight duration, direct flights, and airports for your flight from Seattle to Cardiff
| Best price found | £476 | The best flight deal from Seattle to Cardiff found on momondo in the last 72 hours is £476 |
| Fastest flight time | 19h 30m | The fastest flight from Seattle to Cardiff takes 19h 30m |
| Direct flights | None | There are no direct flights from Seattle to Cardiff. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Cardiff Cardiff Wales Airport. |
| Airports in Cardiff | 1 airport | There is 1 airport near Cardiff: Cardiff Cardiff Wales (CWL) |
How to get the cheapest flight ticket from Seattle to Cardiff
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from Seattle to Cardiff?
April
The cheapest time of year to fly to Cardiff from Seattle is April. The most expensive is May.
What is the cheapest Seattle to Cardiff flight route?
Seattle/Tacoma Intl - Cardiff Cardiff Wales
Fly from Seattle/Tacoma Intl to Cardiff Cardiff Wales for the best Seattle - Cardiff flight prices
Easily compare return flights from Seattle to Cardiff
Below you can see the best fares for your return flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Cardiff by changing tabs
KLM![KLM]()
14 Oct![KLM]()
21 Oct
SEA09:15Seattle/Tacoma Intl
19h 30m
1 stop
CWL04:45Cardiff Cardiff Wales
CWL13:15Cardiff Cardiff Wales
27h 10m
1 stop
SEA16:25Seattle/Tacoma Intl
Multiple Airlines![Multiple Airlines]()
14 Oct![Multiple Airlines]()
21 Oct
SEA09:15Seattle/Tacoma Intl
19h 30m
1 stop
CWL04:45Cardiff Cardiff Wales
CWL13:15Cardiff Cardiff Wales
37h 05m
2 stops
SEA02:20Seattle/Tacoma Intl
How far is Seattle/Tacoma Intl to Cardiff Cardiff Wales by plane?
Seattle/Tacoma Intl and Cardiff Cardiff Wales are 4700.6 mi apart from one another. Typically, this will take 19h 30m by plane in normal conditions.
Can I fly to Cardiff Cardiff Wales from Seattle/Tacoma Intl right now?
Information is based on travel restrictions from Seattle/Tacoma Intl to Cardiff Cardiff Wales
Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Cardiff Cardiff Wales.
COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Cardiff Cardiff Wales.
Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Cardiff Cardiff Wales.
Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.
Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.
COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.
Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Cardiff Cardiff Wales.
COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Cardiff Cardiff Wales.
Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Cardiff Cardiff Wales.
Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.
Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.
COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.
Can I fly back to Seattle/Tacoma Intl from Cardiff Cardiff Wales?
Returning to Seattle/Tacoma Intl from Cardiff Cardiff Wales
COVID-19 testing requirements
Visitors from Cardiff Cardiff Wales must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.
Quarantine requirements
Visitors from Cardiff Cardiff Wales are not required to quarantine after entering Seattle/Tacoma Intl.
COVID-19 testing requirements
Visitors from Cardiff Cardiff Wales must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.
Quarantine requirements
Visitors from Cardiff Cardiff Wales are not required to quarantine after entering Seattle/Tacoma Intl.