Cheap flights from Seattle (SEA) to Basel (EAP) from $532

This is the cheapest one-way flight price, found on 5/24. Prices may vary by date and flight preferences.
SEA — EAP
May 30 — Jun 61
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Cheap flights from Seattle to Basel in May, June 2023

The best prices found for SEA to EAP flights for May, June
These are some of the most attractive deals on flights from Seattle to Basel in 2023. If these deals don't appeal to you, be sure to come back soon for more options.

Seattle to Basel 2023 flight deals

Cheap flights to Basel from Seattle found for this year
These are some of the most attractive deals on flights from Seattle to Basel in 2023. If these deals don't appeal to you, be sure to come back soon for more options.

Cheap British Airways flights from Seattle to Basel

Consider these cheap British Airways flights we've found departing from Seattle to Basel. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Lufthansa flights from Seattle to Basel

Take a gander at the lowest prices we've found on Lufthansa flights from Seattle to Basel. Deals frequently update to provide users with more options.

Last minute flights from Seattle to Basel

Late deals on return flights to Basel from Seattle, departing today and this week
Check out these flights departing soon from Seattle to Basel. Users should examine the flight details to ensure there are no surprises.

One-way flights to Basel from Seattle

The cheapest one-way flights from Seattle to Basel
Users traveling one-way from Seattle to Basel can select one of these great deals. Users in need of a round-trip flight from Seattle to Basel instead should update the search form at the top of page.

Find flights from Seattle to Basel within your budget

Use the slider to find flights from Seattle to Basel that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$722 - $1,750

Route

Depart

Return

Price

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 11/16

1 stop16h 40m

Basel EuroAirport Swiss

Thu 11/30

1 stop13h 35m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 11/16

1 stop15h 00m

Basel EuroAirport Swiss

Thu 11/30

2 stops20h 26m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 11/21

2 stops15h 20m

Basel EuroAirport Swiss

Sun 12/3

2 stops16h 43m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 11/16

2 stops17h 00m

Basel EuroAirport Swiss

Thu 11/30

2 stops18h 27m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 11/16

2 stops20h 20m

Basel EuroAirport Swiss

Thu 11/30

2 stops19h 28m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 8/23

2 stops17h 35m

Basel EuroAirport Swiss

Sat 9/9

1 stop14h 00m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 8/23

2 stops18h 10m

Basel EuroAirport Swiss

Sat 9/9

2 stops19h 58m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 8/23

1 stop18h 25m

Basel EuroAirport Swiss

Sat 9/9

1 stop12h 45m

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 6/27

1 stop19h 00m

Basel EuroAirport Swiss

Tue 7/18

1 stop16h 45m

Flights are sorted by cheapest first

Deals found on 5/24

Reviews of Airlines Servicing Basel

Read reviews from past customers who have flown British Airways, Lufthansa and Undisclosed Carrier from Seattle to Basel. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

Delta
8.0
Very good
2,354 reviews
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

SWISS
7.6
Good
349 reviews
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

Air France
7.6
Good
189 reviews
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

United Airlines
7.6
Good
1,490 reviews
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

Turkish Airlines
7.3
Good
1,393 reviews
Delta
8.0
Very good
2,354 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 10

They gave us a 30 minute window to transfer in Seattle. We missed our connecting flight to Seoul and had to take a later flight. They then lost our luggage in this process. We had to come back to Ho Cho Minh City airport three different times to check on the status of our bags. It took us over 24 hours to get our bags back and multiple taxi fares. Horrible experience.

Related info for your journey

Useful info, stats and facts about Seattle to Basel flights.

Other flights from Seattle

Top 2 airlines flying from Seattle to Basel

The chart below displays the airlines Cheapflights users traveling from Seattle to Basel choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
DeltaCheapest$666Average$1,093FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
British AirwaysCheapest$740Average$1,274FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search British Airways flights