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

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

How long does it take to fly to Basel EuroAirport Swiss?

Flight times from State of Washington to Basel EuroAirport Swiss vary, but if you’re flying out of Seattle and flying into Basel EuroAirport Swiss (one of the most popular routes), then the duration is 12h 25m on average. Another popular route from State of Washington to Basel EuroAirport Swiss is flying from Pasco to Basel EuroAirport Swiss, which will take roughly 28h 23m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Washington to Basel EuroAirport Swiss are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Basel EuroAirport Swiss?

The number of operators available for flights from Washington to Basel EuroAirport Swiss is 2 as of March 2026.

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

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 Washington to Basel EuroAirport Swiss.

What documentation or ID do you need to fly to Basel EuroAirport Swiss?

The travel and health documents you'll need for your trip to Basel EuroAirport Swiss may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Basel EuroAirport Swiss. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$382 Cheap Flights from State of Washington to Basel EuroAirport Swiss in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Washington to Basel

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:17 pm - 7:30 pm

SEA

BSL

19h 13m

2 stops

12:10 pm - 12:36 am

BSL

SEA

21h 26m

2 stops

$822Multiple Airlines

Wed, Apr 8 - Mon, Apr 13

5:20 pm - 7:40 pm

SEA

BSL

17h 20m

2 stops

1:00 pm - 4:59 pm

BSL

SEA

12h 59m

1 stop

$919United Airlines

Mon, Aug 3 - Fri, Aug 21

3:33 pm - 7:40 pm

SEA

BSL

19h 07m

2 stops

9:50 am - 6:29 pm

BSL

SEA

17h 39m

2 stops

$929United Airlines

Mon, Aug 3 - Fri, Aug 21

10:29 am - 12:25 pm

SEA

BSL

16h 56m

2 stops

9:50 am - 4:59 pm

BSL

SEA

16h 09m

1 stop

$962United Airlines

Mon, Aug 3 - Fri, Aug 14

7:00 am - 7:40 pm

SEA

BSL

27h 40m

2 stops

6:00 am - 9:07 pm

BSL

SEA

24h 07m

2 stops

$972United Airlines

Mon, Aug 3 - Fri, Aug 14

3:17 pm - 7:30 pm

SEA

BSL

19h 13m

2 stops

2:10 pm - 6:25 pm

BSL

SEA

13h 15m

1 stop

$987Multiple Airlines

Wed, Apr 8 - Mon, Apr 13

7:00 am - 9:55 am

PDX

BSL

17h 55m

2 stops

6:30 am - 11:10 am

BSL

PDX

13h 40m

1 stop

$1,017Delta

Fri, Jul 31 - Tue, Aug 11

11:17 am - 1:50 pm

PDX

BSL

17h 33m

2 stops

6:30 pm - 11:10 am

BSL

PDX

25h 40m

1 stop

$1,021Air France

Fri, Jul 31 - Tue, Aug 11

7:30 pm - 10:50 pm

PDX

BSL

18h 20m

1 stop

8:15 am - 9:42 pm

BSL

PDX

22h 27m

2 stops

$1,028British Airways

Fri, Jul 31 - Tue, Aug 11

6:50 pm - 7:40 pm

SEA

BSL

15h 50m

1 stop

6:45 pm - 12:20 pm

BSL

SEA

26h 35m

1 stop

$1,040Lufthansa

Wed, Apr 8 - Mon, Apr 13

Delta flights from State of Washington to Basel EuroAirport Swiss

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

Delta

Mar 30

SEA7:15 amSeattle/Tacoma Intl

21h 30m

2 stops

BSL1:45 pmBasel EuroAirport Swiss

Apr 14

BSL6:30 amBasel EuroAirport Swiss

19h 00m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

$822

Delta

Mar 30

SEA1:45 pmSeattle/Tacoma Intl

19h 10m

1 stop

BSL5:55 pmBasel EuroAirport Swiss

Apr 14

BSL6:30 amBasel EuroAirport Swiss

14h 15m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$823

Delta

Jul 31

PDX7:00 amPortland

17h 55m

2 stops

BSL9:55 amBasel EuroAirport Swiss

Aug 11

BSL6:30 amBasel EuroAirport Swiss

13h 40m

1 stop

PDX11:10 amPortland

$1,017

British Airways flights from State of Washington to Basel EuroAirport Swiss

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

British Airways

Jul 31

PDX7:30 pmPortland

18h 20m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

Aug 11

BSL8:15 amBasel EuroAirport Swiss

22h 27m

2 stops

PDX9:42 pmPortland

$1,028

British Airways

Jul 31

PDX7:30 pmPortland

18h 20m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

Aug 11

BSL8:15 amBasel EuroAirport Swiss

18h 25m

1 stop

PDX5:40 pmPortland

$1,180

British Airways

Jul 31

PDX7:30 pmPortland

18h 20m

1 stop

BSL10:50 pmBasel EuroAirport Swiss

Aug 11

BSL11:55 amBasel EuroAirport Swiss

14h 45m

1 stop

PDX5:40 pmPortland

$1,185

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 4/8

3:17 pm-7:30 pm

2 stops19h 13m

Basel EuroAirport Swiss

Mon 4/13

12:10 pm-12:36 am

2 stops21h 26m

$822

Quickest round-trip

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 8/3

5:20 pm-7:40 pm

2 stops17h 20m

Basel EuroAirport Swiss

Fri 8/21

1:00 pm-4:59 pm

1 stop12h 59m

$919

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 8/3

3:33 pm-7:40 pm

2 stops19h 07m

Basel EuroAirport Swiss

Fri 8/21

9:50 am-6:29 pm

2 stops17h 39m

$929

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 8/3

10:29 am-12:25 pm

2 stops16h 56m

Basel EuroAirport Swiss

Fri 8/14

9:50 am-4:59 pm

1 stop16h 09m

$962

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 8/3

7:00 am-7:40 pm

2 stops27h 40m

Basel EuroAirport Swiss

Fri 8/14

6:00 am-9:07 pm

2 stops24h 07m

$972

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 4/8

3:17 pm-7:30 pm

2 stops19h 13m

Basel EuroAirport Swiss

Mon 4/13

2:10 pm-6:25 pm

1 stop13h 15m

$987

PortlandBasel

PDX - BSL

PDXBSL

Portland

Fri 7/31

7:00 am-9:55 am

2 stops17h 55m

Basel EuroAirport Swiss

Tue 8/11

6:30 am-11:10 am

1 stop13h 40m

$1,017

PortlandBasel

PDX - BSL

PDXBSL

Portland

Fri 7/31

11:17 am-1:50 pm

2 stops17h 33m

Basel EuroAirport Swiss

Tue 8/11

6:30 pm-11:10 am

1 stop25h 40m

$1,021

PortlandBasel

PDX - BSL

PDXBSL

Portland

Fri 7/31

7:30 pm-10:50 pm

1 stop18h 20m

Basel EuroAirport Swiss

Tue 8/11

8:15 am-9:42 pm

2 stops22h 27m

$1,028

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 4/8

6:50 pm-7:40 pm

1 stop15h 50m

Basel EuroAirport Swiss

Mon 4/13

6:45 pm-12:20 pm

1 stop26h 35m

$1,040

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 State of Washington to Basel EuroAirport Swiss

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

Other information

What is the cheapest month to fly to Basel EuroAirport Swiss?

If you are unable to visit Basel EuroAirport Swiss during the month of August, then departing from State of Washington during the month February is also very affordable. Most momondo users find prices during this month for around $490.

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

You could potentially save up to 3% on your flight if you consider stops on a State of Washington to Basel EuroAirport Swiss flight.

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

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

Fastest flight time	12h 25m
Direct flights	None

The fastest flight from State of Washington to Basel EuroAirport Swiss takes 12h 25m

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

Search flight deals

When did momondo last update prices for flights from Washington to Basel EuroAirport Swiss?
Prices for flights from Washington to Basel EuroAirport Swiss are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Basel EuroAirport Swiss?
The number of operators available for flights from Washington to Basel EuroAirport Swiss is 2 as of March 2026.
How old do you have to be to fly from Washington to Basel EuroAirport Swiss?
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 Washington to Basel EuroAirport Swiss.
What documentation or ID do you need to fly to Basel EuroAirport Swiss?
The travel and health documents you'll need for your trip to Basel EuroAirport Swiss may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Basel EuroAirport Swiss. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Basel EuroAirport Swiss

Compare and see reviews for airlines that fly from State of Washington to Basel EuroAirport Swiss with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $467	Free Cancellation	Rating 6.7 7,813 reviews		Search British Airways flights
Lufthansa	PriceFrom $483	Free Cancellation	Rating 6.8 7,864 reviews		Search Lufthansa flights

Why use momondo?

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

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

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

Flights from Washington to Basel 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 Washington to Basel?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Basel from Washington.

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

Yes momondo offers price alerts on flights to Basel from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Basel EuroAirport Swiss trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 4/23

Thu 4/30

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Basel

Other flights from Washington

Airlines

Cabin classes

Complete your trip

Feeling lucky

State of Washington flight routes

Flights from Seattle/Tacoma Intl to Eugene

Flights from Seattle/Tacoma Intl to Bozeman Gallatin Field

Flights from Seattle/Tacoma Intl to Bend/Redmond

Flights from Seattle/Tacoma Intl to Medford

Flights from Seattle/Tacoma Intl to Los Angeles Los Angeles

Flights from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld

Cheap flights from Washington to Basel from $382

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Basel departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington to Basel

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Delta flights from State of Washington to Basel EuroAirport Swiss

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

British Airways flights from State of Washington to Basel EuroAirport Swiss

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

momondo Fare Finder

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

See travel insights to Basel from

How to get the cheapest flight ticket from State of Washington to Basel EuroAirport Swiss

What is the cheapest month to fly to Basel EuroAirport Swiss?

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

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

How long does it take to fly to Basel EuroAirport Swiss?

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

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

Fastest flight time

Direct flights

Best airlines flying from State of Washington to Basel EuroAirport Swiss

Compare and see reviews for airlines that fly from State of Washington to Basel EuroAirport Swiss with momondo

Why use momondo?

An easier way to manage your Basel EuroAirport Swiss trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Basel

State of Washington flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Basel

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Basel

List of cabin classes available on flights landing in Basel. Availability may vary depending on flight origin and airline.

Complete your trip to Basel

Explore popular destinations other users love

According to popular flight searches on momondo this year