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Basel

$410+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EAP
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
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 enero 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. 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.
lun. 3/93:10 pm
SEA
-
BSL
1 stop14h 40m
Delta
jue. 3/196:05 am
BSL
-
SEA
1 stop14h 30m
Delta
Deal found 1/28$484
This Delta deal was found by Cheapflights users on 1/28. 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.
jue. 3/57:10 am
SEA
-
BSL
2 stops17h 40m
Delta
jue. 3/196:05 am
BSL
-
SEA
1 stop14h 30m
Delta
Deal found 1/28$488
This British Airways deal was found by Cheapflights users on 1/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/56:50 pm
SEA
-
BSL
1 stop30h 25m
British Airways
jue. 3/197:35 pm
BSL
-
SEA
1 stop24h 55m
British Airways
Deal found 1/28$490
This Delta deal was found by Cheapflights users on 1/28. 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.
lun. 3/93:10 pm
SEA
-
BSL
1 stop14h 40m
Delta
mar. 3/246:05 am
BSL
-
SEA
2 stops36h 40m
Delta
Deal found 1/28$494
This Delta deal was found by Cheapflights users on 1/28. 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.
sáb. 3/711:15 am
SEA
-
BSL
2 stops38h 25m
Delta
jue. 3/196:05 am
BSL
-
SEA
1 stop14h 30m
Delta
Deal found 1/28$495
This Delta deal was found by Cheapflights users on 1/28. 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.
dom. 3/84:05 pm
SEA
-
BSL
1 stop34h 35m
Delta
jue. 3/196:05 am
BSL
-
SEA
2 stops25h 58m
Delta
Deal found 1/28$500
This Delta deal was found by Cheapflights users on 1/28. 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.
jue. 3/125:30 am
SEA
-
BSL
2 stops27h 55m
Delta
mar. 3/246:05 am
BSL
-
SEA
2 stops22h 45m
Delta
Deal found 1/28$505
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/156:50 pm
SEA
-
BSL
1 stop15h 50m
Lufthansa
mar. 9/228:15 am
BSL
-
SEA
2 stops15h 01m
Lufthansa
Deal found 1/28$538
This Delta deal was found by Cheapflights users on 1/26. 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.
mar. 8/186:40 pm
SEA
-
BSL
1 stop30h 15m
Delta
mié. 9/236:20 am
BSL
-
SEA
1 stop19h 15m
Delta
Deal found 1/26$543
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/196:50 pm
SEA
-
BSL
1 stop15h 50m
United Airlines
mar. 9/226:05 am
BSL
-
SEA
2 stops17h 11m
United Airlines
Deal found 1/26$544
This Delta deal was found by Cheapflights users on 1/28. 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.
mié. 3/114:05 pm
SEA
-
BSL
1 stop17h 20m
Delta
mié. 3/1811:15 am
BSL
-
SEA
1 stop33h 20m
Delta
Deal found 1/28$545
This oojo deal was found by Cheapflights users on 1/28. 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.
dom. 3/151:52 pm
PDX
-
BSL
2 stops24h 28m
British Airways
dom. 3/224:25 pm
BSL
-
PDX
1 stop32h 30m
British Airways
Deal found 1/28$580

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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$484
(Delta)

One-way from

$410
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$622
Provider with most accurate pricing for Seattle/Tacoma Intl-Basel (EAP) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Basel (EAP) flights.
Search Deals
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 ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 29, 2026.
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

lun. 3/9

7:15 am-1:50 pm

2 stops22h 35m

Basel EuroAirport Swiss

mar. 3/17

6:05 am-12:35 pm

1 stop14h 30m

$488

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

jue. 3/5

7:10 am-9:50 am

2 stops17h 40m

Basel EuroAirport Swiss

mié. 3/18

6:05 am-12:35 pm

1 stop14h 30m

$488

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

sáb. 3/7

6:50 pm-9:50 pm

1 stop18h 00m

Basel EuroAirport Swiss

jue. 3/19

3:40 pm-12:30 pm

1 stop28h 50m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mar. 3/3

1:25 pm-3:05 pm

1 stop16h 40m

Basel EuroAirport Swiss

jue. 3/19

7:35 pm-12:30 pm

1 stop24h 55m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

dom. 3/8

4:05 pm-10:40 am

1 stop34h 35m

Basel EuroAirport Swiss

jue. 3/19

6:05 am-12:35 pm

1 stop14h 30m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

jue. 3/5

6:50 pm-10:15 am

1 stop30h 25m

Basel EuroAirport Swiss

vie. 3/20

7:00 am-12:30 pm

1 stop13h 30m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mié. 3/4

6:50 pm-10:05 pm

1 stop18h 15m

Basel EuroAirport Swiss

jue. 3/19

3:40 pm-12:30 pm

1 stop28h 50m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

sáb. 3/7

6:50 pm-9:50 pm

1 stop18h 00m

Basel EuroAirport Swiss

vie. 3/20

7:00 am-12:30 pm

1 stop13h 30m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

vie. 3/6

6:50 pm-5:05 pm

1 stop13h 15m

Basel EuroAirport Swiss

vie. 3/20

7:00 am-12:30 pm

1 stop13h 30m

$490

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

lun. 3/9

10:58 pm-1:50 pm

2 stops30h 52m

Basel EuroAirport Swiss

jue. 3/19

6:05 am-10:22 pm

2 stops24h 17m

$498

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 39 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 $1,983). 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.

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. 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 $1,983). 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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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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$467Average$729FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$483Average$723FlexibilityNo cancel feeOn-time76%

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