Rome2Rio

How to get fromCardiff to Seattleby train or plane

Find Transport to Seattle

See all options

There are 7 ways to get from Cardiff to Seattle by train or plane

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

  1. Train to Bristol Airport, fly to Seattle-Tacoma International Airport

    best
    1. Take the train from Cardiff Central to Bristol Temple Meadstrain train
    2. Fly from Bristol Airport (BRS) to Seattle-Tacoma International Airport (SEA)plane plane BRS - SEA
    17h 12m
    $432–902

  2. Train to London Heathrow Airport, fly to Seattle-Tacoma International Airport

    cheapest
    1. Take the train from Cardiff Central to London Paddingtontrain train
    2. Fly from London Heathrow Airport (LHR) to Seattle-Tacoma International Airport (SEA)plane plane LHR - SEA
    15h 10m
    $415–1,210

  3. Fly Cardiff Airport to Seattle-Tacoma International Airport

    1. Fly from Cardiff Airport (CWL) to Seattle-Tacoma International Airport (SEA)plane plane CWL - SEA
    19h 12m
    $465–1,818

  4. Train to Birmingham Airport, fly to Seattle-Tacoma International Airport

    1. Take the train from Cardiff Central to Birmingham New Streettrain train
    2. Fly from Birmingham Airport (BHX) to Seattle-Tacoma International Airport (SEA)plane plane BHX - SEA
    17h 28m
    $426–974

  5. Train, train to Exeter, fly to Seattle-Tacoma International Airport

    1. Take the train from Cardiff Central to Bristol Temple Meadstrain train
    2. Take the train from Bristol Temple Meads to Exeter St Davidstrain train
    3. Fly from Exeter (EXT) to Seattle-Tacoma International Airport (SEA)plane plane EXT - SEA
    32h 52m
    $578–2,240

  6. Train to London Heathrow Airport, fly to King County International Airport

    1. Take the train from Cardiff Central to London Paddingtontrain train
    2. Fly from London Heathrow Airport (LHR) to King County International Airport (BFI)plane plane LHR - BFI
    16h 53m
    $422–1,507

  7. Train to London Heathrow Airport, fly to Portland International Airport, train

    1. Take the train from Cardiff Central to London Paddingtontrain train
    2. Fly from London Heathrow Airport (LHR) to Portland International Airport (PDX)plane plane LHR - PDX
    3. Take the train from Portland to Seattletrain train
    19h 43m
    $522–2,027

Bristol Airport (BRS) to Seattle-Tacoma International Airport (SEA) flights

Calendar34Weekly Planes
Duration14h 25mAverage Duration
Ticket$318Cheapest Price
See schedules

Questions & Answers

What companies run services between Cardiff, Wales and Seattle, WA, USA?

KLM, Delta, and five other airlines fly from Cardiff Airport (CWL) to Seattle-Tacoma International Airport (SEA) 5 times a day.

Airlines
Train operators

Want to know more about travelling around United States

Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.

Related travel guides

Where to next?

Trips from Cardiff

Trips to Seattle

Popular routes