Cheap flights from Seattle (SEA) to Basel (EAP)

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How to find the cheapest flight from
Seattle (SEA) to Basel (EAP)

All the information you need to plan the best SEA to EAP flight in 2022: compare Seattle to Basel flight prices with the expected peak season, weather and rainfall in Basel.
What is the cheapest day to fly round-trip from Seattle to Basel?

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.

What is the cheapest month to fly from Seattle to Basel?

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.

When is the cheapest time to fly from Seattle to Basel (SEA - EAP)?

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.

Cheap flights from Seattle to Basel in August, September 2022

The best prices found for SEA to EAP flights for August, September
27 Sep - 18 Oct
$884pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Turkish Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Sep - 18 Oct
$898pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
28 Sep - 9 Oct
$902pp
SEA
Seattle/Tacoma Intl
Turkish Airlines
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Turkish Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Basel 2022 flight deals

Cheap flights to Basel from Seattle found for this year
1 Nov - 8 Nov
$744pp
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Lufthansa
   
2 STOPS
SEA
Seattle/Tacoma Intl
1 Nov - 8 Nov
$754pp
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Lufthansa
 
1 STOP
SEA
Seattle/Tacoma Intl
19 Oct - 26 Oct
$836pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Cheap Turkish Airlines flights from Seattle to Basel

24 Oct - 1 Nov
$862pp
SEA
Seattle/Tacoma Intl
Turkish Airlines
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Turkish Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
2 Oct - 30 Oct
$890pp
SEA
Seattle/Tacoma Intl
Turkish Airlines
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Turkish Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
28 Sep - 9 Oct
$902pp
SEA
Seattle/Tacoma Intl
Turkish Airlines
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Turkish Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Cheap Delta flights from Seattle to Basel

27 Sep - 18 Oct
$927pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Basel

Late deals on round-trip flights to Basel from Seattle, departing today and this week
15 Aug - 28 Aug
$1,107pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
15 Aug - 28 Aug
$1,119pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
19 Aug - 27 Aug
$1,229pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BSL
Basel EuroAirport Swiss
BSL
Basel EuroAirport Swiss
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to All airports from Seattle

The cheapest one-way flights from Seattle to Basel
11:45 am - 12:00 pm
British Airways
2 Stops
15h 15m
SEA - BSL
British Airways
8:10 am - 5:20 am
Air France
1 Stop
12h 10m
SEA - BSL
Air France
7:15 pm - 5:25 am
American Airlines
2 Stops
25h 10m
SEA - BSL
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Basel</span> flights.

Flight FAQs

From Seattle to Basel

Which airlines flying from Seattle/Tacoma Intl to Basel have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Delta, Air France, and Lufthansa flying from Seattle/Tacoma Intl to Basel have implemented new flexible cancellation policies.

Can I find flights from Seattle to Basel for under $800 on Cheapflights?

Yes, there are multiple flights from Seattle to Basel for under $800. The cheapest flight booked recently is on Lufthansa for just $744, but on average you can expect to pay $900.

Are there last-minute flights available from Seattle to Basel for under $1,200?

There are currently 10+ open flights from Seattle to Basel within the next 7 days for less than $1,200.

What are the cheapest airlines flying from Seattle to Basel round-trip?

Our cheapest airline available from Seattle to Basel is Lufthansa. Our recent data shows that you can find tickets from as low as $744 on this airline. Additional options worth looking into are Turkish Airlines and United Airlines, starting at $862 and $892 round-trip. Lufthansa is 24% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Seattle to Basel one-way?

One-way options have recently been found by users for as low as $666 on British Airways. Other airlines that offer cheap prices include American Airlines from $669 and Turkish Airlines from $680 one-way.

What are the most popular airlines that fly from Seattle to Basel?

When booking a flight from Seattle to Basel, you may want to consider flying on Air France, Delta or Lufthansa as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for Basel, Switzerland

Do I need a COVID test to fly to Basel from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Basel

Most visitors from Seattle/Tacoma Intl can enter Basel without restrictions.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Basel.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Basel.

Do I need a test to fly back to Seattle from Basel?

Returning to Seattle/Tacoma Intl from Basel

COVID-19 testing requirements
Visitors from Basel are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Basel are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Basel, Switzerland

Alternative routes for Seattle to Basel

See prices for flight routes from nearby airports that may be better suited for you.
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