HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$556+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — SEA
ago. 9 — ago. 161
sáb. 8/9
sáb. 8/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Basel to Washington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 agosto 4, 2025.

Round-trip from

$556
(Billigflug)

Popular in

December

Cheapest in

April

Average price

$591
From Basel EuroAirport Swiss to Washington
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 agosto 4, 2025.

This Billigflug deal was found by Cheapflights users on 8/3. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/111:50 amBSL - SEA
1 stop32h 45mMultiple Airlines
jue. 10/162:52 pmSEA - BSL
2 stops22h 58mMultiple Airlines
Deal found 8/3$556
This British Airways deal was found by Cheapflights users on 8/4. 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.
mié. 10/16:40 amBSL - SEA
1 stop13h 55mBritish Airways
vie. 10/171:30 pmSEA - BSL
1 stop24h 20mBritish Airways
Deal found 8/4$558
This American Airlines deal was found by Cheapflights users on 8/3. 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.
sáb. 8/236:35 amBSL - SEA
2 stops26h 06mAmerican Airlines
mié. 9/241:30 pmSEA - BSL
1 stop24h 10mAmerican Airlines
Deal found 8/3$560
This Delta deal was found by Cheapflights users on 8/4. 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.
vie. 9/56:15 amBSL - SEA
1 stop14h 30mDelta
dom. 9/141:30 pmSEA - BSL
1 stop14h 40mDelta
Deal found 8/4$571
This Billigflug deal was found by Cheapflights users on 8/3. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2411:45 amBSL - PDX
1 stop14h 50mMultiple Airlines
vie. 11/77:40 amPDX - BSL
2 stops24h 25mMultiple Airlines
Deal found 8/3$612
This Flysmarter deal was found by Cheapflights users on 8/4. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/238:25 amBSL - SEA
1 stop12h 30mLufthansa
mié. 9/242:20 pmSEA - BSL
1 stop14h 20mLufthansa
Deal found 8/4$614
This Expedia deal was found by Cheapflights users on 8/3. 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.
mié. 10/16:40 amBSL - PDX
1 stop19h 55mBritish Airways
jue. 10/161:51 pmPDX - BSL
2 stops19h 34mBritish Airways
Deal found 8/3$632
This United Airlines deal was found by Cheapflights users on 8/4. 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.
mar. 9/1611:25 amBSL - SEA
2 stops20h 27mUnited Airlines
lun. 9/227:10 amSEA - BSL
3 stops20h 15mUnited Airlines
Deal found 8/4$681

Cheapflights Fare Finder

 
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 agosto 4, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to Washington that are best for you.

Fly from

Basel

Fly to

Washington

Route

Depart

Return

Price

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

mié. 10/1

11:50 am-11:35 am

1 stop32h 45m

Seattle/Tacoma Intl

jue. 10/16

2:52 pm-10:50 pm

2 stops22h 58m

$556

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

mié. 10/1

6:40 am-11:35 am

1 stop13h 55m

Seattle/Tacoma Intl

vie. 10/17

1:30 pm-10:50 pm

1 stop24h 20m

$558

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

sáb. 8/23

6:35 am-11:41 pm

2 stops26h 06m

Seattle/Tacoma Intl

mié. 9/24

1:30 pm-10:40 pm

1 stop24h 10m

$560

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

vie. 9/5

6:15 am-11:45 am

1 stop14h 30m

Seattle/Tacoma Intl

dom. 9/14

1:30 pm-1:10 pm

1 stop14h 40m

$571

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

vie. 10/24

11:45 am-5:35 pm

1 stop14h 50m

Portland

vie. 11/7

7:40 am-5:05 pm

2 stops24h 25m

$612

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

sáb. 8/23

8:25 am-11:55 am

1 stop12h 30m

Seattle/Tacoma Intl

mié. 9/24

2:20 pm-1:40 pm

1 stop14h 20m

$614

BaselPortland

BSL - PDX

BSLPDX

Basel EuroAirport Swiss

mié. 10/1

6:40 am-5:35 pm

1 stop19h 55m

Portland

jue. 10/16

1:51 pm-6:25 pm

2 stops19h 34m

$632

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

mar. 9/16

11:25 am-10:52 pm

2 stops20h 27m

Seattle/Tacoma Intl

lun. 9/22

7:10 am-12:25 pm

3 stops20h 15m

$681

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

mar. 8/19

8:30 am-6:36 pm

2 stops19h 06m

Seattle/Tacoma Intl

sáb. 8/23

10:00 am-10:55 am

2 stops15h 55m

$995

BaselSeattle

BSL - SEA

BSLSEA

Basel EuroAirport Swiss

dom. 9/21

7:05 am-11:30 am

1 stop13h 25m

$699

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

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.

Cheapflights Insights

Everything you need to know about your flight from Basel EuroAirport Swiss to Washington
No data available for this route at this time. Please check back soon.

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 agosto 4, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Basel EuroAirport Swiss to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,912 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Air Canada
7.1
Good
9,879 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Lufthansa
6.8
Okay
7,285 reviews
Delta
8.0
Very good
7,987 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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 June is currently the most expensive (average of $388). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Basel to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Basel to John F Kennedy Intl flights
Basel to Newark flights
Basel to LaGuardia flights
Basel to Los Angeles flights
Basel to Miami flights
Basel to Boston flights
Basel to Fort Lauderdale flights
Basel to San Francisco flights
Basel to West Palm Beach flights
Basel to Orlando flights
Basel to Las Vegas flights
Basel to O'Hare Intl flights
Basel to Dulles Intl flights
Basel to Seattle flights
Basel to Atlanta flights
Basel to George Bush Intcntl flights
Basel to Tampa flights
Basel to Reagan-National flights
Basel to Dallas/Fort Worth flights
Basel to Midway flights
Basel to Salt Lake City flights
Basel to New Orleans flights
Basel to Baltimore flights
Basel to Austin flights
Basel to San Antonio flights
Basel to Fort Myers flights
Basel to Detroit flights
Basel to Charlotte flights
Basel to Portland flights
Basel to Raleigh flights
Basel to Sky Harbor Intl flights
Basel to Pittsburgh flights
Basel to Daytona Beach flights
Basel to Billings flights
Basel to Hartford flights
Basel to Oakland flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.