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$400+ Cheap flights from Washington to Basel (EAP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EAP
янв 18 — янв 251
вс. 1/18
вс. 1/25
1 adult, Economy
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Cheap flight deals from Washington to Basel

Cheapest flights from Washington to Basel
Explore the most affordable flight options available from Washington to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on декабрь 19, 2025.

This Air France deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
чт. 12/253:05 pmSEA - BSL
1 stop34h 35mAir France
чт. 1/16:05 amBSL - SEA
1 stop14h 45mAir France
Deal found 12/18$1,365
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
чт. 12/2510:55 amSEA - BSL
2 stops19h 10mMultiple Airlines
чт. 1/16:05 amBSL - SEA
2 stops22h 23mMultiple Airlines
Deal found 12/17$1,377
This Ovago deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пт. 12/267:00 amSEA - BSL
2 stops18h 05mLufthansa
пн. 1/51:10 pmBSL - SEA
2 stops40h 47mLufthansa
Deal found 12/17$1,394
This oojo deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пт. 12/2611:20 amSEA - BSL
2 stops25h 10mBritish Airways
пн. 1/56:15 amBSL - SEA
2 stops25h 58mBritish Airways
Deal found 12/18$1,457
This Ovago deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн. 12/226:50 pmSEA - BSL
1 stop35h 15mBritish Airways
вт. 12/307:05 pmBSL - SEA
1 stop30h 50mBritish Airways
Deal found 12/18$2,048
This KLM deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн. 12/222:05 pmSEA - BSL
1 stop14h 45mMultiple Airlines
вт. 12/306:05 amBSL - SEA
1 stop14h 45mMultiple Airlines
Deal found 12/17$2,049
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн. 12/227:10 amSEA - BSL
2 stops21h 40mDelta
вт. 12/306:05 amBSL - SEA
2 stops19h 55mDelta
Deal found 12/18$2,064
This Cheapflightsfares deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн. 12/292:47 pmPDX - BSL
2 stops18h 28mMultiple Airlines
пт. 1/911:15 amBSL - PDX
1 stop13h 40mMultiple Airlines
Deal found 12/17$3,644
This Cheapflightsfares deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
пн. 12/222:47 pmPDX - BSL
2 stops18h 28mMultiple Airlines
ср. 12/2411:10 amBSL - PDX
1 stop13h 45mMultiple Airlines
Deal found 12/18$5,572

Find flight deals from Washington to Basel

Keep the following information in mind while searching for Washington to Basel flight deals. Data was last updated декабрь 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$485
(United Airlines)

One-way from

$400
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$835
Provider with most accurate pricing for Seattle/Tacoma Intl-Basel (EAP) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Basel (EAP) flights.
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From Washington to Basel (EAP)
Search Deals
One-way flight from Washington to Basel (EAP)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated декабрь 19, 2025.
Use the filters below to find and compare flights from Washington to Basel that are best for you.

Fly from

Washington

Fly to

Basel

Route

Depart

Return

Price

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

вт. 3/17

7:50 pm-10:20 pm

1 stop18h 30m

Basel EuroAirport Swiss

пн. 3/23

4:00 pm-12:30 pm

1 stop28h 30m

$487

PortlandBasel

PDX - BSL

PDXBSL

Portland

пн. 2/2

7:00 am-4:05 pm

2 stops24h 05m

Basel EuroAirport Swiss

пн. 2/9

6:45 am-6:30 pm

2 stops20h 45m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

чт. 3/5

6:50 pm-10:50 pm

1 stop19h 00m

Basel EuroAirport Swiss

пн. 3/9

4:00 pm-12:30 pm

1 stop28h 30m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

ср. 1/14

6:50 pm-10:05 pm

1 stop18h 15m

Basel EuroAirport Swiss

вс. 1/18

6:35 am-4:55 pm

1 stop19h 20m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

пт. 3/6

6:50 pm-9:30 pm

1 stop17h 40m

Basel EuroAirport Swiss

пн. 3/9

6:15 am-5:55 pm

1 stop19h 40m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

ср. 3/4

6:50 pm-10:15 am

1 stop30h 25m

Basel EuroAirport Swiss

вт. 3/10

11:00 am-5:55 pm

1 stop14h 55m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

ср. 1/21

6:50 pm-3:05 pm

1 stop35h 15m

Basel EuroAirport Swiss

вс. 1/25

6:50 pm-4:55 pm

1 stop31h 05m

$487

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

вт. 3/3

10:55 am-12:30 pm

2 stops16h 35m

Basel EuroAirport Swiss

пт. 3/13

9:50 am-2:20 pm

1 stop12h 30m

$489

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

чт. 3/19

5:00 am-7:40 pm

2 stops30h 40m

Basel EuroAirport Swiss

ср. 3/25

9:50 am-2:20 pm

1 stop12h 30m

$489

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

вт. 3/17

5:00 am-12:30 pm

2 stops23h 30m

Basel EuroAirport Swiss

ср. 3/25

9:50 am-2:20 pm

1 stop12h 30m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 23 results
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Best time to book a flight from Washington to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Basel

What is the cheapest month to book a flight from State of Washington to Basel?

Currently, August is the cheapest month in which you can book a flight from State of Washington to Basel (average of $385). Flying from State of Washington to Basel in May is currently the most expensive (average of $817). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to EAP?

Find hourly flight availability from Washington to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated декабрь 19, 2025.

One of the essential ways to save on airfare from State of Washington to Basel is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 35% on airfare.

How much does it cost to fly round-trip from State of Washington to Basel?

Related info for your journey

Find useful and relevant information for your journey from Washington to Basel. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Basel from Washington?

    Basel All airports (EAP) is the airport you will fly into if you book a flight from Washington to Basel. It is only a 0.2 mi journey from All airports (EAP) to Basel’s city center.

  • How long is the flight from State of Washington to Basel?

    Departing from State of Washington to Basel will take you 18h 30m. Airlines will cover a distance of 5207 mi. This flight may include one or multiple stops.

  • What are the most popular routes from State of Washington to Basel?

    While some choose either Portland - Basel EuroAirport Swiss or Pasco Tri Cities - Basel EuroAirport Swiss, Seattle/Tacoma Intl - Basel EuroAirport Swiss is the most popular route from State of Washington to Basel.

  • Can I find deals for flights from Washington to Basel that include hotel bookings?

    Yes. In addition to deals on Washington to Basel flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Basel?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Basel.

  • Can I find deals for business class flights from Washington to Basel?

    Yes. Cheapflights offers flight deals from Washington to Basel by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Basel?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Basel (average of $385). Flying from State of Washington to Basel in May is currently the most expensive (average of $817). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington to Basel

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Washington to Basel

Discover the top 2 airlines that operate flights from Washington to Basel. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated декабрь 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$467Average$694FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$483Average$659FlexibilityNo cancel feeOn-time76%

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