What is the cheapest airline that flies from Basel EuroAirport Swiss to Seattle/Tacoma Intl?

Lufthansa, British Airways, and American Airlines are the most popular carriers operating from Basel EuroAirport Swiss to Seattle/Tacoma Intl

When did momondo last update prices for flights from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport?

Prices for flights from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport refresh daily.

How old do you have to be to fly from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$551 Cheap Flights from Basel EuroAirport Swiss to Seattle in 2025

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Find the cheapest flights from Basel EuroAirport Swiss to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

6:40 am - 11:35 amBSL-SEA

13h 55m1 stop

2:52 pm - 10:50 pmSEA-BSL

22h 58m2 stops

$551

Find Deal

Wed, Oct 1 - Thu, Oct 16

6:40 am - 11:35 amBSL-SEA

13h 55m1 stop

1:30 pm - 10:50 pmSEA-BSL

24h 20m1 stop

$552American Airlines

Find Deal

Wed, Oct 1 - Fri, Oct 17

6:40 am - 11:35 amBSL-SEA

13h 55m1 stop

10:39 am - 6:30 pmSEA-BSL

22h 51m2 stops

$553British Airways

Find Deal

Wed, Oct 1 - Tue, Oct 14

6:35 am - 7:39 pmBSL-SEA

22h 04m2 stops

12:19 pm - 10:40 pmSEA-BSL

25h 21m2 stops

$556American Airlines

Find Deal

Sat, Aug 23 - Wed, Sep 24

6:40 am - 8:09 pmBSL-SEA

22h 29m2 stops

2:52 pm - 10:50 pmSEA-BSL

22h 58m2 stops

$557American Airlines

Find Deal

Wed, Oct 1 - Fri, Oct 17

6:40 am - 8:09 pmBSL-SEA

22h 29m2 stops

10:39 am - 2:15 pmSEA-BSL

18h 36m2 stops

$559British Airways

Find Deal

Wed, Oct 1 - Wed, Oct 15

10:15 am - 4:05 pmBSL-SEA

14h 50m1 stop

11:15 am - 1:10 pmSEA-BSL

16h 55m2 stops

$567Delta

Find Deal

Fri, Sep 5 - Sun, Sep 14

10:10 am - 4:05 pmBSL-SEA

14h 55m1 stop

1:30 pm - 1:10 pmSEA-BSL

14h 40m1 stop

$568Delta

Find Deal

Fri, Sep 12 - Sun, Sep 21

6:15 am - 11:45 amBSL-SEA

14h 30m1 stop

7:10 am - 9:35 amSEA-BSL

17h 25m2 stops

$573Delta

Find Deal

Fri, Sep 12 - Sun, Sep 21

10:15 am - 11:45 amBSL-SEA

34h 30m1 stop

1:30 pm - 1:10 pmSEA-BSL

14h 40m1 stop

$610Air France

Find Deal

Fri, Sep 5 - Sun, Sep 14

British Airways flights from Basel EuroAirport Swiss to Seattle

Our best British Airways deals on Basel EuroAirport Swiss to Seattle flight tickets

British Airways

Oct 1

BSL6:40 amBasel EuroAirport Swiss

13h 55m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 14

SEA10:39 amSeattle/Tacoma Intl

22h 51m

2 stops

BSL6:30 pmBasel EuroAirport Swiss

$553

Find similar

British Airways

Oct 1

BSL6:40 amBasel EuroAirport Swiss

22h 29m

2 stops

SEA8:09 pmSeattle/Tacoma Intl

Oct 15

SEA10:39 amSeattle/Tacoma Intl

18h 36m

2 stops

BSL2:15 pmBasel EuroAirport Swiss

$559

Find similar

British Airways

Sep 12

BSL7:15 pmBasel EuroAirport Swiss

25h 20m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 19

SEA3:00 pmSeattle/Tacoma Intl

22h 50m

2 stops

BSL10:50 pmBasel EuroAirport Swiss

$589

Find similar

Delta flights from Basel EuroAirport Swiss to Seattle

Our best Delta deals on Basel EuroAirport Swiss to Seattle flight tickets

Delta

Sep 5

BSL10:15 amBasel EuroAirport Swiss

14h 50m

1 stop

SEA4:05 pmSeattle/Tacoma Intl

Sep 14

SEA11:15 amSeattle/Tacoma Intl

16h 55m

2 stops

BSL1:10 pmBasel EuroAirport Swiss

$567

Find similar

Delta

Sep 12

BSL10:10 amBasel EuroAirport Swiss

14h 55m

1 stop

SEA4:05 pmSeattle/Tacoma Intl

Sep 21

SEA1:30 pmSeattle/Tacoma Intl

14h 40m

1 stop

BSL1:10 pmBasel EuroAirport Swiss

$568

Find similar

Delta

Sep 12

BSL6:15 amBasel EuroAirport Swiss

14h 30m

1 stop

SEA11:45 amSeattle/Tacoma Intl

Sep 21

SEA7:10 amSeattle/Tacoma Intl

17h 25m

2 stops

BSL9:35 amBasel EuroAirport Swiss

$573

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Basel EuroAirport Swiss to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/1

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

Thu 10/16

2:52 pm-10:50 pm

2 stops22h 58m

$551

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/1

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

Fri 10/17

1:30 pm-10:50 pm

1 stop24h 20m

$552

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/1

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

Tue 10/14

10:39 am-6:30 pm

2 stops22h 51m

$553

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 8/23

6:35 am-7:39 pm

2 stops22h 04m

Seattle/Tacoma Intl

Wed 9/24

12:19 pm-10:40 pm

2 stops25h 21m

$556

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/1

6:40 am-8:09 pm

2 stops22h 29m

Seattle/Tacoma Intl

Fri 10/17

2:52 pm-10:50 pm

2 stops22h 58m

$557

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/1

6:40 am-8:09 pm

2 stops22h 29m

Seattle/Tacoma Intl

Wed 10/15

10:39 am-2:15 pm

2 stops18h 36m

$559

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 9/5

10:15 am-4:05 pm

1 stop14h 50m

Seattle/Tacoma Intl

Sun 9/14

11:15 am-1:10 pm

2 stops16h 55m

$567

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 9/12

10:10 am-4:05 pm

1 stop14h 55m

Seattle/Tacoma Intl

Sun 9/21

1:30 pm-1:10 pm

1 stop14h 40m

$568

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 9/12

6:15 am-11:45 am

1 stop14h 30m

Seattle/Tacoma Intl

Sun 9/21

7:10 am-9:35 am

2 stops17h 25m

$573

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 9/5

10:15 am-11:45 am

1 stop34h 30m

Seattle/Tacoma Intl

Sun 9/14

1:30 pm-1:10 pm

1 stop14h 40m

$610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Basel EuroAirport Swiss to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Basel EuroAirport Swiss is on a Thursday. momondo users have found tickets for Thursday departures for as low as $547. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Basel EuroAirport Swiss because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,021.

When to book flights from Basel EuroAirport Swiss to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Basel EuroAirport Swiss to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Basel EuroAirport Swiss to Seattle (BSL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Basel EuroAirport Swiss to Seattle

Best Price Found	$599
Fastest flight time	12h 35m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from Basel EuroAirport Swiss in the past 72 hours is $599. The best round-trip flight deal from Basel EuroAirport Swiss to Seattle found on momondo in the last 72 hours is $551.

The fastest flight from Basel EuroAirport Swiss to Seattle takes 12h 35m

There are no direct flights from Basel EuroAirport Swiss to Seattle. Popular non-direct route for this connection is Basel EuroAirport Swiss - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Basel EuroAirport Swiss to Seattle/Tacoma Intl by plane?
The straight-line distance from Basel EuroAirport Swiss to Seattle/Tacoma Intl is 5198.6 mi. 13h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport?
Prices for flights from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport refresh daily.
How old do you have to be to fly from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Basel EuroAirport Swiss to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Renton

Kent

Federal Way

Puyallup

Lynnwood

Marysville

Tukwila

Kirkland

Lakewood

Fife

Centralia

Cle Elum

Shoreline

Westport

Redmond

Why use momondo?

Why should I use momondo to find a flight deal from Basel to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Basel.

Can I find flights from Basel to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Basel on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Basel to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Basel. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Basel to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Basel to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.