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$443+ Cheap flights from Washington to Basel EuroAirport Swiss (BSL)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BSL
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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Cheap flight deals from Washington to Basel

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Basel (BSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janvier 21, 2025.

Round-trip from

$465
(Gotogate)

One-way from

$450
(Flightnetwork)
From Washington to Basel EuroAirport Swiss
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One-way flight from Washington to Basel EuroAirport Swiss
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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 janvier 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/19. 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.
mar. 3/45:45 amSEA - BSL
2 stops21h 40mMultiple Airlines
mar. 3/116:50 amBSL - SEA
2 stops23h 10mMultiple Airlines
Deal found 1/19$465
This Flightnetwork deal was found by Cheapflights users on 1/19. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/41:35 pmSEA - BSL
1 stop16h 25mBritish Airways
mar. 3/116:55 amBSL - SEA
1 stop13h 25mBritish Airways
Deal found 1/19$497
This American Airlines deal was found by Cheapflights users on 1/20. 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.
lun. 3/32:07 pmSEA - BSL
2 stops19h 03mAmerican Airlines
lun. 3/103:50 pmBSL - SEA
1 stop28h 30mAmerican Airlines
Deal found 1/20$506
This Booking.com deal was found by Cheapflights users on 1/21. 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.
mar. 3/410:35 amSEA - BSL
2 stops14h 55mAir Canada
mar. 3/116:50 amBSL - SEA
2 stops23h 10mAir Canada
Deal found 1/21$509
This United Airlines deal was found by Cheapflights users on 1/20. 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.
mer. 3/52:00 pmSEA - BSL
1 stop19h 10mUnited Airlines
mer. 3/127:10 amBSL - SEA
2 stops46h 20mUnited Airlines
Deal found 1/20$543
This Lufthansa deal was found by Cheapflights users on 1/21. 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.
ven. 3/143:00 pmSEA - BSL
2 stops20h 25mLufthansa
ven. 3/287:10 amBSL - SEA
2 stops15h 10mLufthansa
Deal found 1/21$646
This KLM deal was found by Cheapflights users on 1/21. 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.
lun. 9/15:30 pmSEA - BSL
1 stop19h 15mKLM
lun. 9/156:25 pmBSL - SEA
1 stop26h 15mKLM
Deal found 1/21$658
This United Airlines deal was found by Cheapflights users on 1/21. 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.
mer. 3/1912:50 pmPSC - BSL
2 stops19h 30mUnited Airlines
mer. 3/269:35 amBSL - PSC
2 stops19h 35mUnited Airlines
Deal found 1/21$720
This Delta deal was found by Cheapflights users on 1/20. 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.
mer. 7/307:20 amSEA - BSL
2 stops17h 10mDelta
ven. 8/86:15 amBSL - SEA
1 stop14h 25mDelta
Deal found 1/20$769
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 2/157:00 pmSEA - BSL
1 stop37h 10mTurkish Airlines
sam. 2/226:05 pmBSL - SEA
1 stop32h 00mTurkish Airlines
Deal found 1/20$997
This Air Canada deal was found by Cheapflights users on 1/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/53:25 pmPDX - BSL
2 stops19h 10mMultiple Airlines
mar. 6/106:05 amBSL - PDX
2 stops25h 50mMultiple Airlines
Deal found 1/21$1,221
This KLM deal was found by Cheapflights users on 1/21. 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.
jeu. 6/53:15 pmPDX - BSL
2 stops17h 35mKLM
mar. 6/1010:15 amBSL - PDX
1 stop34h 05mKLM
Deal found 1/21$1,263

Find flights from Washington to Basel within your budget

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 janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mar. 3/4

5:45 am-12:25 pm

2 stops21h 40m

Basel EuroAirport Swiss

mar. 3/11

6:50 am-10:00 pm

2 stops23h 10m

$465

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mar. 3/4

1:35 pm-3:00 pm

1 stop16h 25m

Basel EuroAirport Swiss

mar. 3/11

6:55 am-12:20 pm

1 stop13h 25m

$497

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

lun. 3/3

2:07 pm-6:10 pm

2 stops19h 03m

Basel EuroAirport Swiss

lun. 3/10

3:50 pm-12:20 pm

1 stop28h 30m

$506

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mar. 3/4

10:35 am-10:30 am

2 stops14h 55m

Basel EuroAirport Swiss

mar. 3/11

6:50 am-10:00 pm

2 stops23h 10m

$509

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

mer. 3/5

2:00 pm-6:10 pm

1 stop19h 10m

Basel EuroAirport Swiss

mer. 3/12

7:10 am-9:30 pm

2 stops46h 20m

$543

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

ven. 3/14

3:00 pm-7:25 pm

2 stops20h 25m

Basel EuroAirport Swiss

ven. 3/28

7:10 am-2:20 pm

2 stops15h 10m

$646

PascoBasel

PSC - BSL

PSCBSL

Pasco Tri Cities

mer. 3/19

12:50 pm-4:20 pm

2 stops19h 30m

Basel EuroAirport Swiss

mer. 3/26

9:35 am-9:10 pm

2 stops19h 35m

$720

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

sam. 3/15

3:15 pm-10:05 pm

1 stop22h 50m

Basel EuroAirport Swiss

dim. 3/30

2:20 pm-11:45 am

1 stop30h 25m

$739

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

dim. 6/8

6:45 pm-9:30 am

1 stop29h 45m

Basel EuroAirport Swiss

lun. 6/16

2:20 pm-4:00 pm

1 stop34h 40m

$884

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

sam. 2/15

7:00 pm-5:10 pm

1 stop37h 10m

Basel EuroAirport Swiss

sam. 2/22

6:05 pm-5:05 pm

1 stop32h 00m

$997

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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.

Travel insights for flights from Washington to Basel

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

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

Currently, January is the cheapest month in which you can book a flight from State of Washington to Basel EuroAirport Swiss (average of $545). Flying from State of Washington to Basel EuroAirport Swiss 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 BSL?

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 janvier 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Basel EuroAirport Swiss as you normally would.

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 EuroAirport Swiss 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 EuroAirport Swiss 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 EuroAirport Swiss, 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 janvier 21, 2025.
Get a feel of what it's like to fly with United Airlines, KLM and American Airlines from Washington to Basel by reading reviews from past customers. 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
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,931 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 EuroAirport Swiss (BSL) is the airport you will fly into if you book a flight from Washington to Basel. It is only a 3.6 mi journey from EuroAirport Swiss (BSL) to Basel’s city center.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $450. American Airlines flights start at $461 while deals on United Airlines start at $473 one-way.

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

    When deciding which route to take from State of Washington to Basel EuroAirport Swiss consider Seattle/Tacoma Intl - Basel EuroAirport Swiss, Portland - Basel EuroAirport Swiss or Pasco Tri Cities - Basel EuroAirport Swiss as they are the most popular.

  • 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 EuroAirport Swiss?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Basel EuroAirport Swiss (average of $545). Flying from State of Washington to Basel EuroAirport Swiss 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.

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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 3 airlines flying from Washington to Basel

Discover the top 3 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 janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$443Average$624FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$502Average$769FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$571Average$591FlexibilityNo cancel feeOn-time76%
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