Flights from Seattle to Basel from US$ 669.99**
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1 Passenger, Economy
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Best Flights Deals from Seattle to Basel
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US$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Seattle (SEA) | Basel (BSL) | Oneway / Economy | Depart: 04/12/2026 | From US$Â 669.99 Updated: 23 hrs ago |
| Seattle (SEA) | Basel (BSL) | Oneway / Economy | Depart: 04/13/2026 | From US$Â 669.99 Updated: 23 hrs ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.