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Cheap flights from Washington to Basel from $391

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 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
5:45 pm - 6:40 pmPDX-BSL
15h 55m1 stop
British Airways Logo
11:20 am - 3:55 pmBSL-PDX
13h 35m1 stop
$461British Airways
Find Deal
Wed, Jan 14 - Sun, Jan 18
Delta Logo
7:00 am - 9:50 amPDX-BSL
17h 50m2 stops
Delta Logo
6:05 am - 11:25 amBSL-PDX
14h 20m1 stop
$476Delta
Find Deal
Wed, Jan 14 - Sun, Jan 18
Delta Logo
7:00 am - 9:50 amPDX-BSL
17h 50m2 stops
Delta Logo
6:05 am - 6:50 pmBSL-PDX
21h 45m2 stops
$486Delta
Find Deal
Wed, Jan 14 - Sun, Jan 18
Lufthansa Logo
7:00 am - 12:30 pmSEA-BSL
20h 30m2 stops
Lufthansa Logo
6:40 am - 8:56 pmBSL-SEA
23h 16m2 stops
$490Lufthansa
Find Deal
Sat, Feb 14 - Sat, Feb 21
Air France Logo
1:40 pm - 1:50 pmSEA-BSL
15h 10m1 stop
Air France Logo
6:05 am - 4:45 pmBSL-SEA
19h 40m2 stops
$491Air France
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Sat, Feb 14 - Sat, Feb 21
KLM Logo
3:10 pm - 9:50 amSEA-BSL
34h 40m1 stop
KLM Logo
6:25 pm - 11:35 amBSL-SEA
26h 10m1 stop
$533KLM
Find Deal
Sun, Mar 22 - Sun, Mar 29
Air France Logo
4:00 pm - 5:25 pmSEA-BSL
17h 25m1 stop
Air France Logo
11:15 am - 11:35 amBSL-SEA
32h 20m1 stop
$538Air France
Find Deal
Sun, Mar 22 - Sat, Mar 28
United Airlines Logo
9:20 am - 12:30 pmSEA-BSL
19h 10m2 stops
United Airlines Logo
11:00 am - 12:20 pmBSL-SEA
34h 20m1 stop
$557United Airlines
Find Deal
Sun, Mar 22 - Sun, Mar 29
Lufthansa Logo
3:40 pm - 7:40 pmPDX-BSL
20h 00m2 stops
Lufthansa Logo
8:15 pm - 10:10 pmBSL-PDX
34h 55m2 stops
$670Lufthansa
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Tue, Mar 24 - Sun, Mar 29
United Airlines Logo
5:05 am - 7:40 pmPSC-BSL
30h 35m2 stops
United Airlines Logo
8:20 am - 8:57 pmBSL-PSC
21h 37m3 stops
$1,050United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31

British Airways flights from State of Washington to Basel

Our best British Airways deals on State of Washington to Basel flight tickets
British Airways
Jan 14
PDX5:45 pmPortland
15h 55m
1 stop
BSL6:40 pmBasel EuroAirport Swiss
Jan 18
BSL11:20 amBasel EuroAirport Swiss
13h 35m
1 stop
PDX3:55 pmPortland
$461
Find similar
British Airways
Mar 20
SEA2:35 pmSeattle/Tacoma Intl
15h 35m
1 stop
BSL2:10 pmBasel EuroAirport Swiss
Mar 29
BSL7:10 pmBasel EuroAirport Swiss
25h 25m
1 stop
SEA11:35 amSeattle/Tacoma Intl
$586
Find similar
British Airways
Mar 6
PDX5:45 pmPortland
14h 20m
1 stop
BSL5:05 pmBasel EuroAirport Swiss
Mar 10
BSL7:05 pmBasel EuroAirport Swiss
29h 50m
1 stop
PDX4:55 pmPortland
$609
Find similar

Delta flights from State of Washington to Basel

Our best Delta deals on State of Washington to Basel flight tickets
Delta
Jan 14
PDX7:00 amPortland
17h 50m
2 stops
BSL9:50 amBasel EuroAirport Swiss
Jan 18
BSL6:05 amBasel EuroAirport Swiss
14h 20m
1 stop
PDX11:25 amPortland
$476
Find similar
Delta
Jan 14
PDX7:00 amPortland
17h 50m
2 stops
BSL9:50 amBasel EuroAirport Swiss
Jan 18
BSL6:05 amBasel EuroAirport Swiss
21h 45m
2 stops
PDX6:50 pmPortland
$486
Find similar
Delta
Jan 14
PSC5:05 amPasco Tri Cities
44h 35m
2 stops
BSL10:40 amBasel EuroAirport Swiss
Jan 18
BSL6:05 amBasel EuroAirport Swiss
38h 58m
2 stops
PSC12:03 pmPasco Tri Cities
$499
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Basel that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 17, 2025.
Use the filters below to find and compare flights from Washington to Basel that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBasel

PDX - BSL

PDXBSL

Portland

Wed 1/14

5:45 pm-6:40 pm

1 stop15h 55m

Basel EuroAirport Swiss

Sun 1/18

11:20 am-3:55 pm

1 stop13h 35m

$461

PortlandBasel

PDX - BSL

PDXBSL

Portland

Wed 1/14

7:00 am-9:50 am

2 stops17h 50m

Basel EuroAirport Swiss

Sun 1/18

6:05 am-11:25 am

1 stop14h 20m

$476

PortlandBasel

PDX - BSL

PDXBSL

Portland

Wed 1/14

7:00 am-9:50 am

2 stops17h 50m

Basel EuroAirport Swiss

Sun 1/18

6:05 am-6:50 pm

2 stops21h 45m

$486

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 2/14

7:00 am-12:30 pm

2 stops20h 30m

Basel EuroAirport Swiss

Sat 2/21

6:40 am-8:56 pm

2 stops23h 16m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 2/14

1:40 pm-1:50 pm

1 stop15h 10m

Basel EuroAirport Swiss

Sat 2/21

6:05 am-4:45 pm

2 stops19h 40m

$491

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sun 3/22

3:10 pm-9:50 am

1 stop34h 40m

Basel EuroAirport Swiss

Sun 3/29

6:25 pm-11:35 am

1 stop26h 10m

$533

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sun 3/22

4:00 pm-5:25 pm

1 stop17h 25m

Basel EuroAirport Swiss

Sat 3/28

11:15 am-11:35 am

1 stop32h 20m

$538

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sun 3/22

9:20 am-12:30 pm

2 stops19h 10m

Basel EuroAirport Swiss

Sun 3/29

11:00 am-12:20 pm

1 stop34h 20m

$557

PortlandBasel

PDX - BSL

PDXBSL

Portland

Tue 3/24

3:40 pm-7:40 pm

2 stops20h 00m

Basel EuroAirport Swiss

Sun 3/29

8:15 pm-10:10 pm

2 stops34h 55m

$670

PascoBasel

PSC - BSL

PSCBSL

Pasco Tri Cities

Fri 3/27

5:05 am-7:40 pm

2 stops30h 35m

Basel EuroAirport Swiss

Tue 3/31

8:20 am-8:57 pm

3 stops21h 37m

$1,050

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Basel from

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

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

What is the cheapest month to fly to Basel?

If you aren’t able to travel to Basel during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $566.

What is the cheapest day to depart on your flight to Basel?

On average, the least expensive day to fly to Basel from State of Washington is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $561. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Basel is Thursday, with ticket prices averaging around $997.

What is the cheapest time of day to depart on your flight to Basel?

In the morning is the cheapest time of day to fly from State of Washington to Basel when you can find flight prices for as low as $643. Flying to Basel in the morning is an ideal time because this is during off-peak travel hours. Flights to Basel are more costly in the evening, with an average ticket price of $675. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 28% on your flight if you consider stops on a State of Washington to Basel flight.

Cheap State of Washington to Basel flight deals and tips

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

Direct flights

None
There are no direct flights from State of Washington to Basel. There are no popular flight routes from State of Washington to Basel.
Search flight deals

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Basel.

  • What documentation or ID do you need to fly to Basel?

    The travel and health documents required for your trip to Basel 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 Basel. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Basel

Compare and see reviews for airlines that fly from State of Washington to Basel with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $481Free CancellationRating
6.7
7,528 reviews
Search British Airways flights
LufthansaPriceFrom $497Free CancellationRating
6.8
7,576 reviews
Search Lufthansa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Basel from Washington.

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

Yes. momondo enables you to select and highlight flights to Basel from Washington with this policy.

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

Once you have performed a search for Washington to Basel flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Washington to Basel flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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