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

British Airways is the most popular carrier 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.

$424 Cheap Flights from Basel EuroAirport Swiss to State of Washington in 2026/27

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.

11:05 am - 4:50 pmBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

14h 45m1 stop London Heathrow

6:45 pm - 6:45 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

15h 00m1 stop London Heathrow

$695British Airways

Mon, Feb 8 - Mon, Feb 15

8:35 pm - 11:25 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

23h 50m1 stop London Heathrow

6:45 pm - 7:50 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

16h 05m1 stop London Heathrow

$711British Airways

Fri, Dec 18 - Wed, Dec 30

8:50 pm - 11:25 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

23h 35m1 stop London Heathrow

6:45 pm - 6:45 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

15h 00m1 stop London Heathrow

$713British Airways

Wed, Dec 23 - Mon, Dec 28

11:05 am - 12:44 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

22h 39m2 stops London Heathrow Chicago O'Hare Intl

6:45 pm - 6:45 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

15h 00m1 stop London Heathrow

$714British Airways

Mon, Feb 8 - Mon, Feb 15

11:05 am - 12:44 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

22h 39m2 stops London Heathrow Chicago O'Hare Intl

1:51 pm - 6:45 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

19h 54m2 stops Charlotte Douglas London Heathrow

$719American Airlines

Mon, Feb 8 - Mon, Feb 15

10:50 am - 12:32 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

22h 42m2 stops London Heathrow Chicago O'Hare Intl

1:40 pm - 12:10 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

13h 30m1 stop London Heathrow

$720British Airways

Tue, Dec 15 - Sat, Dec 26

8:35 pm - 11:25 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

23h 50m1 stop London Heathrow

11:09 am - 2:55 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

18h 46m2 stops Charlotte Douglas London Heathrow

$726British Airways

Fri, Dec 18 - Wed, Dec 30

6:10 am - 11:35 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

14h 25m1 stop London Heathrow

6:12 am - 6:20 pmSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

27h 08m2 stops Chicago O'Hare Intl London Heathrow

$734Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

4:15 pm - 11:25 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

28h 10m1 stop London Heathrow

6:45 pm - 10:00 amSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

30h 15m1 stop London Heathrow

$735British Airways

Wed, Jan 13 - Sun, Jan 17

4:15 pm - 11:25 amBSL Basel EuroAirport Swiss-SEA Seattle/Tacoma Intl

28h 10m1 stop London Heathrow

6:45 pm - 10:00 amSEA Seattle/Tacoma Intl-BSL Basel EuroAirport Swiss

30h 15m1 stop London Heathrow

$737British Airways

Wed, Jan 13 - Sun, Jan 17

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Oct 26

BSL6:40 amBasel EuroAirport Swiss

14h 20m

1 stop

SEA1:00 pmSeattle/Tacoma Intl

Nov 2

SEA3:49 pmSeattle/Tacoma Intl

15h 16m

2 stops

BSL4:05 pmBasel EuroAirport Swiss

$793

United Airlines

Dec 16

BSL6:40 amBasel EuroAirport Swiss

14h 20m

1 stop

SEA12:00 pmSeattle/Tacoma Intl

Dec 30

SEA7:00 amSeattle/Tacoma Intl

22h 00m

2 stops

BSL2:00 pmBasel EuroAirport Swiss

$795

United Airlines

Dec 16

BSL2:40 pmBasel EuroAirport Swiss

32h 42m

2 stops

SEA2:22 pmSeattle/Tacoma Intl

Dec 30

SEA7:05 amSeattle/Tacoma Intl

21h 55m

2 stops

BSL2:00 pmBasel EuroAirport Swiss

$801

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

Oct 8

BSL6:30 amBasel EuroAirport Swiss

14h 22m

1 stop

SEA11:52 amSeattle/Tacoma Intl

Oct 15

SEA7:32 amSeattle/Tacoma Intl

21h 23m

2 stops

BSL1:55 pmBasel EuroAirport Swiss

$765

Delta

Oct 12

BSL6:30 amBasel EuroAirport Swiss

21h 35m

2 stops

SEA7:05 pmSeattle/Tacoma Intl

Oct 19

SEA10:51 amSeattle/Tacoma Intl

17h 54m

2 stops

BSL1:45 pmBasel EuroAirport Swiss

$766

Delta

Oct 8

BSL10:20 amBasel EuroAirport Swiss

20h 45m

2 stops

SEA10:05 pmSeattle/Tacoma Intl

Oct 15

SEA7:32 amSeattle/Tacoma Intl

21h 23m

2 stops

BSL1:55 pmBasel EuroAirport Swiss

$770

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

Quickest round-trip

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Mon 2/8

11:05 am-4:50 pm

1 stop14h 45m

Seattle/Tacoma Intl

Mon 2/15

6:45 pm-6:45 pm

1 stop15h 00m

$695

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Fri 12/18

8:35 pm-11:25 am

1 stop23h 50m

Seattle/Tacoma Intl

Wed 12/30

6:45 pm-7:50 pm

1 stop16h 05m

$711

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Wed 12/23

8:50 pm-11:25 am

1 stop23h 35m

Seattle/Tacoma Intl

Mon 12/28

6:45 pm-6:45 pm

1 stop15h 00m

$713

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Mon 2/8

11:05 am-12:44 am

2 stops22h 39m

Seattle/Tacoma Intl

Mon 2/15

6:45 pm-6:45 pm

1 stop15h 00m

$714

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Mon 2/8

11:05 am-12:44 am

2 stops22h 39m

Seattle/Tacoma Intl

Mon 2/15

1:51 pm-6:45 pm

2 stops19h 54m

$719

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Tue 12/15

10:50 am-12:32 am

2 stops22h 42m

Seattle/Tacoma Intl

Sat 12/26

1:40 pm-12:10 pm

1 stop13h 30m

$720

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Fri 12/18

8:35 pm-11:25 am

1 stop23h 50m

Seattle/Tacoma Intl

Wed 12/30

11:09 am-2:55 pm

2 stops18h 46m

$726

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Thu 10/15

6:10 am-11:35 am

1 stop14h 25m

Seattle/Tacoma Intl

Mon 10/19

6:12 am-6:20 pm

2 stops27h 08m

$734

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Wed 1/13

4:15 pm-11:25 am

1 stop28h 10m

Seattle/Tacoma Intl

Sun 1/17

6:45 pm-10:00 am

1 stop30h 15m

$735

BaselSeattle

BSL Basel EuroAirport Swiss - SEA Seattle/Tacoma Intl

BSLSEA

Basel EuroAirport Swiss

Wed 1/13

4:15 pm-11:25 am

1 stop28h 10m

Seattle/Tacoma Intl

Sun 1/17

6:45 pm-10:00 am

1 stop30h 15m

$737

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 76% 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

Best Price Found	$424
Fastest flight time	14h 45m
Direct flights	None

The best one-way flight to State of Washington from Basel EuroAirport Swiss in the past 72 hours is $424. The best round-trip flight deal from Basel EuroAirport Swiss to State of Washington found on momondo in the last 72 hours is $695.

The fastest flight from Basel EuroAirport Swiss to State of Washington takes 14h 45m

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.