Cheap flights from Cardiff to Seattle

from as little as £641

13 nights in Seattle, departing Cardiff on 10 / Mar / 2025 with Virgin Atlantic (price found 35 hours ago)

Subject to availability, prices correct of the last 24 hours
Seattle

Cheap return flights from Cardiff to Seattle

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The Cardiff / Seattle route

All 7575 km of it

Cheap flight deals for this route

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Seattle flight facts

What you need to know

Alternative flights from the UK to Seattle

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Seattle

10 / Mar / 2025 is currently the lowest priced day of the year to fly the Cardiff/Seattle route. There are around 30 flights on any given week from the UK to Seattle and the cheapest month to fly right now is March.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

2 °C

AVG

12 °C

HIGHEST

25 °C

Rainfall (mm)
LOWEST

21 mm

AVG

81 mm

HIGHEST

170 mm

Key facts about Seattle

How to get cheap flights from Cardiff to Seattle

Tips and advice from our flight experts

We've compared all 30 flights that go to or via Seattle every week, to find the best deal for you. Virgin Atlantic usually has the cheapest flights from Cardiff to Seattle, so keep an eye out for them in your search results. If they’re not the cheapest option, try searching by month to compare costs throughout the week.

When you fly from Cardiff to Seattle, you'll have two airlines to choose from for your 7575 km journey. If you're planning to fly in peak season, make sure you book in advance to get a reasonable price. Or you could hold on and try to get a last-minute bargain.

If you're fairly flexible about when you want to fly to Seattle, searching by month will show you the cheapest times to go. It’s also worth looking out for flights operated by Virgin Atlantic & KLM, as they're the most popular airlines for this journey.

It takes about 19 hrs 40 mins to fly from Cardiff to Seattle. Once you’ve chosen your flight, go through and fill out your details to complete your booking. If you haven’t yet sorted your hotel or car hire, take a look at our competitive rates – then you can book your flights and accommodation in one go.

Other popular destinations near Seattle

Where other people are flying to

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