What is the cheapest airline that flies from Basel EuroAirport Swiss to Washington?

British Airways and American Airlines are the most popular carriers operating from Basel EuroAirport Swiss to Washington

How old do you have to be to fly from Basel EuroAirport Swiss to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Basel EuroAirport Swiss to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$441 Cheap Flights from Basel EuroAirport Swiss to State of Washington in 2026

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Find the cheapest flights from Basel EuroAirport Swiss to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 11:35 am

BSL

SEA

14h 25m

1 stop

8:20 am - 11:00 am

SEA

BSL

17h 40m

2 stops

$758American Airlines

Thu, Sep 10 - Mon, Sep 21

10:15 am - 8:48 pm

BSL

SEA

19h 33m

2 stops

9:10 am - 1:45 pm

SEA

BSL

19h 35m

2 stops

$765Delta

Thu, Sep 10 - Mon, Sep 21

6:00 am - 11:55 am

BSL

SEA

14h 55m

1 stop

2:10 pm - 2:00 pm

SEA

BSL

14h 50m

1 stop

$769Lufthansa

Thu, Sep 10 - Mon, Sep 21

9:50 am - 4:59 pm

BSL

SEA

16h 09m

1 stop

6:50 pm - 7:40 pm

SEA

BSL

15h 50m

1 stop

$770Lufthansa

Sun, Jun 14 - Tue, Jun 23

6:10 am - 11:35 am

BSL

SEA

14h 25m

1 stop

1:30 pm - 10:50 pm

SEA

BSL

24h 20m

1 stop

$782American Airlines

Thu, Aug 20 - Sat, Sep 12

6:00 am - 12:20 pm

BSL

SEA

15h 20m

1 stop

2:10 pm - 1:40 pm

SEA

BSL

14h 30m

1 stop

$787Lufthansa

Mon, Jun 15 - Sun, Jun 21

9:55 am - 4:59 pm

BSL

SEA

16h 04m

1 stop

2:10 pm - 1:55 pm

SEA

BSL

14h 45m

1 stop

$788Lufthansa

Thu, Jul 16 - Thu, Jul 23

6:00 am - 9:36 pm

BSL

SEA

24h 36m

2 stops

6:15 am - 11:20 am

SEA

BSL

20h 05m

2 stops

$789American Airlines

Fri, Sep 18 - Sun, Sep 20

12:15 pm - 5:40 pm

BSL

PDX

14h 25m

1 stop

7:30 pm - 11:05 pm

PDX

BSL

18h 35m

1 stop

$954British Airways

Thu, Oct 15 - Mon, Oct 19

12:15 pm - 5:40 pm

BSL

PDX

14h 25m

1 stop

7:30 pm - 11:05 pm

PDX

BSL

18h 35m

1 stop

$959British Airways

Thu, Oct 15 - Mon, Oct 19

American Airlines flights from Basel EuroAirport Swiss to State of Washington

Our best American Airlines deals on Basel EuroAirport Swiss to State of Washington flight tickets

American Airlines

Sep 10

BSL6:10 amBasel EuroAirport Swiss

14h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 21

SEA8:20 amSeattle/Tacoma Intl

17h 40m

2 stops

BSL11:00 amBasel EuroAirport Swiss

$758

American Airlines

Aug 20

BSL6:10 amBasel EuroAirport Swiss

14h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 12

SEA1:30 pmSeattle/Tacoma Intl

24h 20m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

$782

American Airlines

Sep 18

BSL6:00 amBasel EuroAirport Swiss

24h 36m

2 stops

SEA9:36 pmSeattle/Tacoma Intl

Sep 20

SEA6:15 amSeattle/Tacoma Intl

20h 05m

2 stops

BSL11:20 amBasel EuroAirport Swiss

$789

Delta flights from Basel EuroAirport Swiss to State of Washington

Our best Delta deals on Basel EuroAirport Swiss to State of Washington flight tickets

Delta

Sep 10

BSL10:15 amBasel EuroAirport Swiss

19h 33m

2 stops

SEA8:48 pmSeattle/Tacoma Intl

Sep 21

SEA9:10 amSeattle/Tacoma Intl

19h 35m

2 stops

BSL1:45 pmBasel EuroAirport Swiss

$765

Delta

Jun 14

BSL6:30 amBasel EuroAirport Swiss

13h 40m

1 stop

PDX11:10 amPortland

Jun 21

PDX9:16 amPortland

19h 29m

2 stops

BSL1:45 pmBasel EuroAirport Swiss

$988

Delta

Jun 14

BSL6:30 amBasel EuroAirport Swiss

13h 40m

1 stop

PDX11:10 amPortland

Jun 21

PDX1:05 pmPortland

11h 40m

1 stop

BSL9:45 amBasel EuroAirport Swiss

$994

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 9/10

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Mon 9/21

8:20 am-11:00 am

2 stops17h 40m

$758

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 9/10

10:15 am-8:48 pm

2 stops19h 33m

Seattle/Tacoma Intl

Mon 9/21

9:10 am-1:45 pm

2 stops19h 35m

$765

Quickest round-trip

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 9/10

6:00 am-11:55 am

1 stop14h 55m

Seattle/Tacoma Intl

Mon 9/21

2:10 pm-2:00 pm

1 stop14h 50m

$769

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sun 6/14

9:50 am-4:59 pm

1 stop16h 09m

Seattle/Tacoma Intl

Tue 6/23

6:50 pm-7:40 pm

1 stop15h 50m

$770

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 8/20

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Sat 9/12

1:30 pm-10:50 pm

1 stop24h 20m

$782

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 6/15

6:00 am-12:20 pm

1 stop15h 20m

Seattle/Tacoma Intl

Sun 6/21

2:10 pm-1:40 pm

1 stop14h 30m

$787

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 7/16

9:55 am-4:59 pm

1 stop16h 04m

Seattle/Tacoma Intl

Thu 7/23

2:10 pm-1:55 pm

1 stop14h 45m

$788

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 9/18

6:00 am-9:36 pm

2 stops24h 36m

Seattle/Tacoma Intl

Sun 9/20

6:15 am-11:20 am

2 stops20h 05m

$789

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Thu 10/15

12:15 pm-5:40 pm

1 stop14h 25m

Portland

Mon 10/19

7:30 pm-11:05 pm

1 stop18h 35m

$954

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Thu 10/15

12:15 pm-5:40 pm

1 stop14h 25m

Portland

Mon 10/19

7:30 pm-11:05 pm

1 stop18h 35m

$959

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 State of Washington

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 month to fly to State of Washington?

The month of September is, on average, the cheapest month to fly to State of Washington from Basel EuroAirport Swiss, with most prices found around $0. If you aren’t able to travel to State of Washington during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $0.

Can stopping save me money on Basel EuroAirport Swiss to State of Washington flights?

You could potentially save up to 36% on your flight if you consider stops on a Basel EuroAirport Swiss to State of Washington flight.

Cheap Basel EuroAirport Swiss to State of Washington flight deals and tips

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

Fastest flight time	14h 25m
Direct flights	None

The fastest flight from Basel EuroAirport Swiss to State of Washington takes 14h 25m

There are no direct flights from Basel EuroAirport Swiss to State of Washington. There are no popular flight routes from Basel EuroAirport Swiss to State of Washington.

Search flight deals

Frequently asked questions about flying from Basel EuroAirport Swiss to Washington

When did momondo last update prices for flights from Basel EuroAirport Swiss to Washington?
Prices for flights from Basel EuroAirport Swiss to Washington refresh daily.
How old do you have to be to fly from Basel EuroAirport Swiss to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Basel EuroAirport Swiss to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Basel to Washington for you.

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

momondo does allow users to show only those flights to Washington from Basel which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Basel to Washington.

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

Price alerts on flights to Washington from Basel are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.