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$489+ Cheap flights from Basel EuroAirport Swiss (BSL) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Basel to Washington

Keep the following information in mind while searching for Basel to Washington flight deals. Data was last updated February 20, 2025.

Round-trip from

$489
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$527
From Basel EuroAirport Swiss to Washington
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($408 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 24% potential price decrease ($147 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Basel to Washington

Cheapest flights from Basel to Washington
Explore the most affordable flight options available from Basel to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 3/66:10 amBSL - SEA
1 stop19h 45mAmerican Airlines
Mon 3/107:50 pmSEA - BSL
1 stop17h 45mAmerican Airlines
Deal found 2/20$489
This British Airways deal was found by Cheapflights users on 2/20. 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.
Thu 4/106:10 amBSL - SEA
1 stop21h 10mBritish Airways
Tue 4/221:35 pmSEA - BSL
2 stops16h 30mBritish Airways
Deal found 2/20$490
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/316:35 amBSL - SEA
1 stop14h 00mMultiple Airlines
Thu 4/106:58 amSEA - BSL
2 stops18h 57mMultiple Airlines
Deal found 2/20$510
This KLM deal was found by Cheapflights users on 2/20. 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.
Mon 3/3110:15 amBSL - SEA
1 stop14h 25mKLM
Thu 4/106:10 pmSEA - BSL
1 stop18h 30mKLM
Deal found 2/20$539
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/319:45 amBSL - SEA
2 stops20h 41mUnited Airlines
Thu 4/106:15 amSEA - BSL
2 stops28h 20mUnited Airlines
Deal found 2/20$573
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/301:00 pmBSL - SEA
1 stop12h 59mLufthansa
Sat 5/102:55 pmSEA - BSL
2 stops41h 55mLufthansa
Deal found 2/20$589
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 8/2310:10 amBSL - SEA
2 stops22h 08mDelta
Wed 9/245:40 pmSEA - BSL
1 stop15h 10mDelta
Deal found 2/20$600
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/12:20 pmBSL - PDX
2 stops19h 50mLufthansa
Sat 5/103:46 pmPDX - BSL
2 stops17h 04mLufthansa
Deal found 2/20$686
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:45 pmBSL - PDX
1 stop30h 50mMultiple Airlines
Sat 5/107:25 pmPDX - BSL
1 stop30h 10mMultiple Airlines
Deal found 2/20$754
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 7/2412:15 pmBSL - PDX
1 stop14h 20mAmerican Airlines
Mon 9/17:25 pmPDX - BSL
1 stop13h 55mAmerican Airlines
Deal found 2/20$757
This British Airways deal was found by Cheapflights users on 2/20. 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.
Thu 7/2412:15 pmBSL - PDX
1 stop14h 20mBritish Airways
Mon 9/12:15 pmPDX - BSL
2 stops19h 05mBritish Airways
Deal found 2/20$759
This Austrian Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 4/68:25 pmBSL - SEA
2 stops31h 36mAustrian Airlines
Sun 4/137:00 amSEA - BSL
2 stops27h 45mAustrian Airlines
Deal found 2/20$766

Find flights from Basel to Washington within your budget

Customize your flight search to find flights from Basel to Washington 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 February 20, 2025.

Fly from

Basel

Fly to

Washington

Route

Depart

Return

Price

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 3/6

6:10 am-4:55 pm

1 stop19h 45m

Seattle/Tacoma Intl

Mon 3/10

7:50 pm-9:35 pm

1 stop17h 45m

$489

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Thu 4/10

6:10 am-6:20 pm

1 stop21h 10m

Seattle/Tacoma Intl

Tue 4/22

1:35 pm-3:05 pm

2 stops16h 30m

$490

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 3/31

6:35 am-11:35 am

1 stop14h 00m

Seattle/Tacoma Intl

Thu 4/10

6:58 am-10:55 am

2 stops18h 57m

$510

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 3/31

10:15 am-3:40 pm

1 stop14h 25m

Seattle/Tacoma Intl

Thu 4/10

6:10 pm-9:40 pm

1 stop18h 30m

$539

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Mon 3/31

9:45 am-9:26 pm

2 stops20h 41m

Seattle/Tacoma Intl

Thu 4/10

6:15 am-7:35 pm

2 stops28h 20m

$573

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Wed 4/30

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Sat 5/10

2:55 pm-5:50 pm

2 stops41h 55m

$589

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Thu 5/1

2:20 pm-1:10 am

2 stops19h 50m

Portland

Sat 5/10

3:46 pm-5:50 pm

2 stops17h 04m

$686

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

Sat 5/17

10:15 am-8:25 pm

2 stops19h 10m

Seattle/Tacoma Intl

Sat 5/31

8:50 am-1:50 pm

2 stops20h 00m

$701

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Thu 5/1

7:45 pm-5:35 pm

1 stop30h 50m

Portland

Sat 5/10

7:25 pm-10:35 am

1 stop30h 10m

$754

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

Thu 7/24

12:15 pm-5:35 pm

1 stop14h 20m

Portland

Mon 9/1

7:25 pm-6:20 pm

1 stop13h 55m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 15 results
1
2

Best time to book a flight from Basel to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Basel 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.

Travel insights for flights from Basel to Washington

Get recent, data-driven insights about flights from Basel to Washington including ideal travel times, pricing trends, and more.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated February 20, 2025.
To help decide which airline to fly from Basel to Washington, see what other customers have to say about Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines
7.3
Good
3,832 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Basel to Washington. 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 from for flights from Basel to Washington?

    For a flight from Basel to Washington, you will be flying from EuroAirport Swiss. Basel EuroAirport Swiss (BSL) is just 3.6 mi from the center of the city.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Basel to Washington 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 Basel EuroAirport Swiss to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to State of Washington (average of $238). Flying from Basel EuroAirport Swiss to State of Washington in July is currently the most expensive (average of $411). 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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