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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
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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
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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
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Fri, Mar 27 - Tue, Mar 31

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
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 EuroAirport Swiss

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

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 $509.

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

According to our data, Wednesday is the cheapest day to fly to Basel EuroAirport Swiss from State of Washington. The lowest ticket price found for a Wednesday departure recently was $590. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from State of Washington to Basel EuroAirport Swiss on a Friday will generally be more expensive and average around $1,201. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Basel EuroAirport Swiss is in the evening. momondo users have found flights departing from State of Washington to Basel EuroAirport Swiss in the evening for as low as $590. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $767. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 28% 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

Direct flights

None
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.
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  • 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?

  • 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 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?

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.

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