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

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

When did momondo last update prices for flights from Basel to Washington?

Prices for flights from Basel to Washington refresh daily.

How old do you have to be to fly from Basel 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 to Washington.

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

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$445 Cheap Flights from Basel to Washington in 2026

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Find the cheapest flights from Basel to Washington

Round-trip

One-way

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

1:25 pm - 10:50 pm

SEA

BSL

24h 25m

1 stop

$748British Airways

Thu, Aug 27 - Thu, Nov 12

6:10 am - 11:35 am

BSL

SEA

14h 25m

1 stop

2:46 pm - 7:05 pm

SEA

BSL

19h 19m

2 stops

$762British Airways

Thu, Aug 27 - Thu, Nov 12

6:10 am - 11:35 am

BSL

SEA

14h 25m

1 stop

1:30 pm - 11:05 pm

SEA

BSL

24h 35m

1 stop

$765American Airlines

Thu, Jun 4 - Mon, Jun 8

6:30 am - 11:37 am

BSL

SEA

14h 07m

1 stop

7:20 am - 9:50 am

SEA

BSL

17h 30m

2 stops

$774Delta

Sat, Aug 29 - Sun, Nov 15

10:15 am - 10:00 pm

BSL

SEA

20h 45m

2 stops

7:20 am - 1:50 pm

SEA

BSL

21h 30m

2 stops

$779Delta

Sat, Aug 29 - Sun, Nov 15

11:10 am - 6:32 pm

BSL

SEA

16h 22m

2 stops

7:00 am - 9:15 am

SEA

BSL

17h 15m

2 stops

$784Lufthansa

Fri, Jun 26 - Fri, Jul 3

6:30 am - 4:24 pm

BSL

SEA

18h 54m

1 stop

5:30 am - 9:55 am

SEA

BSL

19h 25m

2 stops

$787Delta

Thu, Jun 4 - Mon, Jun 8

6:40 am - 11:35 am

BSL

SEA

13h 55m

1 stop

8:20 pm - 10:55 am

SEA

BSL

29h 35m

1 stop

$788Multiple Airlines

Mon, Jun 22 - Mon, Jun 29

6:40 am - 11:35 am

BSL

SEA

13h 55m

1 stop

8:20 pm - 10:50 pm

SEA

BSL

17h 30m

1 stop

$789British Airways

Wed, Jun 17 - Sun, Jun 21

11:50 am - 11:35 am

BSL

SEA

32h 45m

1 stop

5:49 am - 6:50 pm

SEA

BSL

28h 01m

2 stops

$790American Airlines

Wed, Sep 9 - Sun, Sep 13

United Airlines flights from Basel to State of Washington

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

United Airlines

Jun 5

BSL6:00 amBasel EuroAirport Swiss

15h 20m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Jul 22

SEA7:00 amSeattle/Tacoma Intl

20h 25m

2 stops

BSL12:25 pmBasel EuroAirport Swiss

$805

United Airlines

Jun 4

BSL6:00 amBasel EuroAirport Swiss

15h 20m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Jul 23

SEA6:50 pmSeattle/Tacoma Intl

15h 50m

1 stop

BSL7:40 pmBasel EuroAirport Swiss

$806

United Airlines

Jul 10

BSL9:50 amBasel EuroAirport Swiss

16h 09m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Aug 13

SEA5:00 amSeattle/Tacoma Intl

29h 40m

2 stops

BSL7:40 pmBasel EuroAirport Swiss

$808

British Airways flights from Basel to State of Washington

Our best British Airways deals on Basel to State of Washington flight tickets

British Airways

Aug 27

BSL6:10 amBasel EuroAirport Swiss

14h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Nov 12

SEA1:25 pmSeattle/Tacoma Intl

24h 25m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

$748

British Airways

Aug 27

BSL6:10 amBasel EuroAirport Swiss

14h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Nov 12

SEA2:46 pmSeattle/Tacoma Intl

19h 19m

2 stops

BSL7:05 pmBasel EuroAirport Swiss

$762

British Airways

Jun 17

BSL6:40 amBasel EuroAirport Swiss

13h 55m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Jun 21

SEA8:20 pmSeattle/Tacoma Intl

17h 30m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

$789

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 8/27

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Thu 11/12

1:25 pm-10:50 pm

1 stop24h 25m

$748

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 8/27

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Thu 11/12

2:46 pm-7:05 pm

2 stops19h 19m

$762

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 6/4

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Mon 6/8

1:30 pm-11:05 pm

1 stop24h 35m

$765

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 8/29

6:30 am-11:37 am

1 stop14h 07m

Seattle/Tacoma Intl

Sun 11/15

7:20 am-9:50 am

2 stops17h 30m

$774

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 8/29

10:15 am-10:00 pm

2 stops20h 45m

Seattle/Tacoma Intl

Sun 11/15

7:20 am-1:50 pm

2 stops21h 30m

$779

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Fri 6/26

11:10 am-6:32 pm

2 stops16h 22m

Seattle/Tacoma Intl

Fri 7/3

7:00 am-9:15 am

2 stops17h 15m

$784

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 6/4

6:30 am-4:24 pm

1 stop18h 54m

Seattle/Tacoma Intl

Mon 6/8

5:30 am-9:55 am

2 stops19h 25m

$787

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 6/22

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

Mon 6/29

8:20 pm-10:55 am

1 stop29h 35m

$788

Quickest round-trip

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 6/17

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

Sun 6/21

8:20 pm-10:50 pm

1 stop17h 30m

$789

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 9/9

11:50 am-11:35 am

1 stop32h 45m

Seattle/Tacoma Intl

Sun 9/13

5:49 am-6:50 pm

2 stops28h 01m

$790

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 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 October is, on average, the cheapest month to fly to State of Washington from Basel, with most prices found around $521. If you aren’t able to travel to State of Washington during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $527.

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

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

Cheap Basel to State of Washington flight deals and tips

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

Fastest flight time	12h 59m
Direct flights	None

The fastest flight from Basel to State of Washington takes 12h 59m

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

Search flight deals

Frequently asked questions about flying from Basel to Washington

When did momondo last update prices for flights from Basel to Washington?
Prices for flights from Basel to Washington refresh daily.
How old do you have to be to fly from Basel 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 to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Basel to Washington. momondo saves you time and could save you money on your trip.

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

Flights from Basel to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Basel and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.