It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Our data shows that November tends to be the cheapest month to fly to Basel from Seattle. Users have commonly found prices around $986 for the month, but tickets can be as low as $393. Due to multiple factors, prepare for potentially higher prices in January.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 46% on flights from Seattle to Basel by exploring options for tickets in the morning.