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Basel

$282+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EAP
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Washington to Basel

Keep the following information in mind while searching for Washington to Basel flight deals. Data was last updated June 18, 2025.

Round-trip from

$484
(British Airways)

One-way from

$282
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$857
From Washington to Basel (EAP)
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One-way flight from Washington to Basel (EAP)
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Highest demand for flights based on searches. 9% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 18, 2025.

This Lufthansa deal was found by Cheapflights users on 6/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:10 pmSEA - BSL
1 stop19h 30mLufthansa
Fri 11/76:40 amBSL - SEA
1 stop14h 30mLufthansa
Deal found 6/16$502
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 10/294:10 pmSEA - BSL
1 stop19h 30mUnited Airlines
Wed 11/57:00 amBSL - SEA
2 stops23h 56mUnited Airlines
Deal found 6/16$509
This Priceline deal was found by Cheapflights users on 6/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/13:43 pmSEA - BSL
2 stops22h 07mBritish Airways
Mon 9/157:20 pmBSL - SEA
1 stop24h 50mBritish Airways
Deal found 6/18$516
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 9/98:20 pmSEA - BSL
1 stop17h 30mAmerican Airlines
Wed 9/246:40 amBSL - SEA
1 stop13h 55mAmerican Airlines
Deal found 6/16$531
This Orbitz deal was found by Cheapflights users on 6/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:20 amSEA - BSL
2 stops20h 05mMultiple Airlines
Mon 9/1511:30 amBSL - SEA
2 stops35h 46mMultiple Airlines
Deal found 6/16$552
This Delta deal was found by Cheapflights users on 6/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/306:30 pmSEA - BSL
1 stop30h 00mDelta
Tue 8/1210:10 amBSL - SEA
1 stop34h 05mDelta
Deal found 6/17$561
This Austrian Airlines deal was found by Cheapflights users on 6/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/298:00 amSEA - BSL
2 stops41h 30mAustrian Airlines
Mon 11/38:25 pmBSL - SEA
2 stops33h 29mAustrian Airlines
Deal found 6/16$576
This KLM deal was found by Cheapflights users on 6/16. 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.
Tue 7/291:50 pmSEA - BSL
1 stop22h 50mKLM
Tue 8/126:25 pmBSL - SEA
1 stop26h 10mKLM
Deal found 6/16$592
This Ovago deal was found by Cheapflights users on 6/16. 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.
Mon 9/14:25 pmSEA - BSL
2 stops18h 10mSWISS
Mon 9/158:25 amBSL - SEA
2 stops19h 11mSWISS
Deal found 6/16$629
This Booking.com deal was found by Cheapflights users on 6/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:25 pmPDX - BSL
2 stops39h 35mMultiple Airlines
Mon 1/51:05 pmBSL - PDX
2 stops58h 39mMultiple Airlines
Deal found 6/17$711
This Air France deal was found by Cheapflights users on 6/16. 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.
Thu 7/311:30 pmSEA - BSL
1 stop14h 40mAir France
Sun 8/106:15 amBSL - SEA
1 stop18h 40mAir France
Deal found 6/16$804
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:11 amPDX - BSL
2 stops17h 49mUnited Airlines
Mon 1/510:40 amBSL - PDX
3 stops44h 58mUnited Airlines
Deal found 6/17$971

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 June 18, 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

Mon 9/1

3:43 pm-10:50 pm

2 stops22h 07m

Basel EuroAirport Swiss

Mon 9/15

7:20 pm-11:10 am

1 stop24h 50m

$516

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 9/9

8:20 pm-10:50 pm

1 stop17h 30m

Basel EuroAirport Swiss

Wed 9/24

6:40 am-11:35 am

1 stop13h 55m

$531

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sun 9/7

2:20 pm-1:40 pm

1 stop14h 20m

Basel EuroAirport Swiss

Wed 9/24

6:05 am-2:16 pm

2 stops17h 11m

$535

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 9/1

7:20 am-12:25 pm

2 stops20h 05m

Basel EuroAirport Swiss

Mon 9/15

11:30 am-2:16 pm

2 stops35h 46m

$552

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 9/1

5:07 am-7:35 pm

2 stops29h 28m

Basel EuroAirport Swiss

Mon 9/15

11:30 am-2:16 pm

2 stops35h 46m

$556

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 7/30

6:30 pm-9:30 am

1 stop30h 00m

Basel EuroAirport Swiss

Tue 8/12

10:10 am-11:15 am

1 stop34h 05m

$561

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 7/29

1:50 pm-9:40 pm

1 stop22h 50m

Basel EuroAirport Swiss

Tue 8/12

6:25 pm-11:35 am

1 stop26h 10m

$592

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-7:35 pm

2 stops18h 10m

Basel EuroAirport Swiss

Mon 9/15

8:25 am-6:36 pm

2 stops19h 11m

$629

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 8/27

8:00 am-7:45 pm

2 stops26h 45m

Basel EuroAirport Swiss

Sat 9/13

10:20 am-8:42 pm

2 stops43h 22m

$723

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 7/31

1:30 pm-1:10 pm

1 stop14h 40m

Basel EuroAirport Swiss

Sun 8/10

6:15 am-3:55 pm

1 stop18h 40m

$804

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 24 results
1
2
3

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, January is the cheapest month in which you can book a flight from State of Washington to Basel (average of $545). Flying from State of Washington to Basel in June is currently the most expensive (average of $1,132). 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 June 18, 2025.

When flying from State of Washington to Basel, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Basel by month

Plan your trip to Basel by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Basel ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel when rainfall is around 1.9 in.

Temperature in Basel by month

Plan your trip to Basel by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Basel, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Basel. Reviews last updated June 18, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington to Basel. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,363 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,632 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from State of Washington to Basel one-way?

    One-way options have recently been found by users for as low as $361 on Lufthansa. Other airlines that offer cheap prices include British Airways from $370 and American Airlines from $373 one-way.

  • 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, January is the cheapest month in which you can book a flight from State of Washington to Basel (average of $545). Flying from State of Washington to Basel in June is currently the most expensive (average of $1,132). 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$443Average$694FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$571Average$649FlexibilityNo cancel feeOn-time76%

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