Find out what a flight from Seattle to Basel might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Seattle and Basel / Mulhouse.

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Which airports near Seattle or Basel / Mulhouse offer flights?

In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.

• Airports in Seattle: 2 airports are active - Boeing Field, Lake Union.
• Airports in Basel / Mulhouse: 2 options available in Basel / Mulhouse - EuroAirport CH, EuroAirport FR.

Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.

Refine your flight search from Seattle to Basel

With Jetcost, it’s easy to narrow down results to find flights that match your schedule and preferences. You can filter by airline, price, trip type, and more — including offers from Expedia, eDreams, and top carriers.

Other popular destinations

Also looking at Switzerland? These cities are trending: Basel / Mulhouse, Bern, Geneva, Lugano, Zurich.

Online agencies can show different offers for the same flight — it’s worth comparing. Filters let you narrow things down further, like selecting a specific time slot to find flights that suit you best.