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

American Airlines and British Airways 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.

$490 Cheap Flights from Basel EuroAirport Swiss to State of Washington in 2026

1 adult

0 bags

Find the cheapest flights from Basel EuroAirport Swiss to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:35 pm - 11:35 am

BSL

SEA

23h 00m

1 stop

1:30 pm - 11:20 am

SEA

BSL

12h 50m

1 stop

$753British Airways

Mon, Sep 14 - Sun, Sep 20

7:45 pm - 11:35 am

BSL

SEA

24h 50m

1 stop

8:20 pm - 6:50 pm

SEA

BSL

13h 30m

1 stop

$757British Airways

Wed, Oct 14 - Sun, Oct 18

6:40 am - 5:08 pm

BSL

SEA

19h 28m

2 stops

11:53 pm - 6:20 pm

SEA

BSL

33h 27m

2 stops

$760American Airlines

Wed, Oct 14 - Sun, Oct 18

6:40 am - 7:30 pm

BSL

SEA

21h 50m

2 stops

11:53 pm - 6:20 pm

SEA

BSL

33h 27m

2 stops

$761American Airlines

Wed, Oct 14 - Sun, Oct 18

7:45 pm - 11:35 am

BSL

SEA

24h 50m

1 stop

8:20 pm - 10:50 pm

SEA

BSL

17h 30m

1 stop

$762British Airways

Wed, Oct 14 - Sun, Oct 18

7:45 pm - 11:35 am

BSL

SEA

24h 50m

1 stop

1:30 pm - 10:50 pm

SEA

BSL

24h 20m

1 stop

$763British Airways

Wed, Oct 14 - Sun, Oct 18

6:35 am - 4:41 pm

BSL

SEA

19h 06m

2 stops

1:30 pm - 10:50 pm

SEA

BSL

24h 20m

1 stop

$767American Airlines

Sat, Sep 5 - Sat, Sep 12

8:20 am - 12:20 pm

BSL

SEA

13h 00m

1 stop

6:50 pm - 7:50 pm

SEA

BSL

16h 00m

1 stop

$774Lufthansa

Sat, May 30 - Sat, Jun 6

6:30 am - 7:33 pm

BSL

SEA

22h 03m

2 stops

7:20 am - 9:55 am

SEA

BSL

17h 35m

2 stops

$776Delta

Mon, Sep 14 - Sun, Sep 20

6:30 am - 11:45 am

BSL

PDX

14h 15m

1 stop

3:30 pm - 3:10 pm

PDX

BSL

14h 40m

1 stop

$1,019Multiple Airlines

Tue, Jun 30 - Mon, Oct 19

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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

Oct 14

BSL6:40 amBasel EuroAirport Swiss

19h 28m

2 stops

SEA5:08 pmSeattle/Tacoma Intl

Oct 18

SEA11:53 pmSeattle/Tacoma Intl

33h 27m

2 stops

BSL6:20 pmBasel EuroAirport Swiss

$760

American Airlines

Oct 14

BSL6:40 amBasel EuroAirport Swiss

21h 50m

2 stops

SEA7:30 pmSeattle/Tacoma Intl

Oct 18

SEA11:53 pmSeattle/Tacoma Intl

33h 27m

2 stops

BSL6:20 pmBasel EuroAirport Swiss

$761

American Airlines

Sep 5

BSL6:35 amBasel EuroAirport Swiss

19h 06m

2 stops

SEA4:41 pmSeattle/Tacoma Intl

Sep 12

SEA1:30 pmSeattle/Tacoma Intl

24h 20m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

$767

United Airlines flights from Basel EuroAirport Swiss to State of Washington

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

United Airlines

Sep 12

BSL6:00 amBasel EuroAirport Swiss

14h 55m

1 stop

SEA11:55 amSeattle/Tacoma Intl

Sep 19

SEA6:50 pmSeattle/Tacoma Intl

16h 00m

1 stop

BSL7:50 pmBasel EuroAirport Swiss

$794

United Airlines

Sep 5

BSL8:20 amBasel EuroAirport Swiss

12h 35m

1 stop

SEA11:55 amSeattle/Tacoma Intl

Sep 12

SEA6:50 pmSeattle/Tacoma Intl

16h 00m

1 stop

BSL7:50 pmBasel EuroAirport Swiss

$795

United Airlines

Sep 5

BSL8:20 amBasel EuroAirport Swiss

12h 35m

1 stop

SEA11:55 amSeattle/Tacoma Intl

Sep 12

SEA6:50 pmSeattle/Tacoma Intl

16h 00m

1 stop

BSL7:50 pmBasel EuroAirport Swiss

$796

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

Mon 9/14

9:35 pm-11:35 am

1 stop23h 00m

Seattle/Tacoma Intl

Sun 9/20

1:30 pm-11:20 am

1 stop12h 50m

$753

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/14

7:45 pm-11:35 am

1 stop24h 50m

Seattle/Tacoma Intl

Sun 10/18

8:20 pm-6:50 pm

1 stop13h 30m

$757

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/14

6:40 am-5:08 pm

2 stops19h 28m

Seattle/Tacoma Intl

Sun 10/18

11:53 pm-6:20 pm

2 stops33h 27m

$760

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/14

6:40 am-7:30 pm

2 stops21h 50m

Seattle/Tacoma Intl

Sun 10/18

11:53 pm-6:20 pm

2 stops33h 27m

$761

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/14

7:45 pm-11:35 am

1 stop24h 50m

Seattle/Tacoma Intl

Sun 10/18

8:20 pm-10:50 pm

1 stop17h 30m

$762

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 10/14

7:45 pm-11:35 am

1 stop24h 50m

Seattle/Tacoma Intl

Sun 10/18

1:30 pm-10:50 pm

1 stop24h 20m

$763

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 9/5

6:35 am-4:41 pm

2 stops19h 06m

Seattle/Tacoma Intl

Sat 9/12

1:30 pm-10:50 pm

1 stop24h 20m

$767

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 5/30

8:20 am-12:20 pm

1 stop13h 00m

Seattle/Tacoma Intl

Sat 6/6

6:50 pm-7:50 pm

1 stop16h 00m

$774

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 9/14

6:30 am-7:33 pm

2 stops22h 03m

Seattle/Tacoma Intl

Sun 9/20

7:20 am-9:55 am

2 stops17h 35m

$776

Quickest round-trip

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Tue 6/30

6:30 am-11:45 am

1 stop14h 15m

Portland

Mon 10/19

3:30 pm-3:10 pm

1 stop14h 40m

$1,019

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

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	13h 00m
Direct flights	None

The fastest flight from Basel EuroAirport Swiss to State of Washington takes 13h 00m

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.

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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.