How does KAYAK find such low prices on flights from Washington to Basel?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Basel. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Basel?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Basel?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Basel?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$282 CHEAP FLIGHTS from Washington to Basel (BSL)

BSL

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Cheap Flights from Washington to Basel

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Basel that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Washington to Basel

Wed, Oct 29 - Fri, Nov 7

4:10 pm - 7:40 pmSEA-BSL

19h 30m1 stop

6:40 am - 12:10 pmBSL-SEA

14h 30m1 stop

$502Lufthansa

Find Deal

Wed, Oct 29 - Wed, Nov 5

4:10 pm - 7:40 pmSEA-BSL

19h 30m1 stop

7:00 am - 9:56 pmBSL-SEA

23h 56m2 stops

$509United Airlines

Find Deal

Wed, Oct 29 - Tue, Nov 4

8:00 am - 9:30 amSEA-BSL

41h 30m2 stops

10:10 am - 6:57 pmBSL-SEA

41h 47m2 stops

$533Austrian Airlines

Find Deal

Mon, Sep 1 - Mon, Sep 15

7:20 am - 12:25 pmSEA-BSL

20h 05m2 stops

11:30 am - 2:16 pmBSL-SEA

35h 46m2 stops

$552

Find Deal

Mon, Sep 1 - Mon, Sep 15

1:30 pm - 6:20 pmSEA-BSL

19h 50m1 stop

7:20 pm - 11:10 amBSL-SEA

24h 50m1 stop

$553British Airways

Find Deal

Mon, Sep 1 - Mon, Sep 15

7:20 am - 5:50 pmSEA-BSL

25h 30m2 stops

2:15 pm - 11:55 amBSL-SEA

30h 40m1 stop

$555

Find Deal

Sun, Sep 7 - Wed, Sep 24

5:40 pm - 5:50 pmSEA-BSL

15h 10m1 stop

10:10 am - 5:40 pmBSL-SEA

16h 30m1 stop

$573KLM

Find Deal

Wed, Oct 29 - Mon, Nov 3

8:00 am - 9:30 amSEA-BSL

41h 30m2 stops

8:25 pm - 8:54 pmBSL-SEA

33h 29m2 stops

$576Austrian Airlines

Find Deal

Tue, Jul 29 - Tue, Aug 12

1:50 pm - 9:40 pmSEA-BSL

22h 50m1 stop

6:25 pm - 11:35 amBSL-SEA

26h 10m1 stop

$592KLM

Find Deal

Mon, Dec 8 - Fri, Dec 26

6:50 pm - 9:35 pmSEA-BSL

17h 45m1 stop

4:00 pm - 11:20 amBSL-SEA

28h 20m1 stop

$593British Airways

Find Deal

Useful Info

Low season	August
High season	July
Cheapest flight	$282

Best time to beat the crowds but there is an average 8% increase in price.

Most popular time to fly with an average 4% increase in price.

Flight from Seattle to Basel

How does KAYAK find such low prices on flights from Washington to Basel?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Basel.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Basel?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Basel?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Basel?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Basel

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Basel (BSL)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

BSL

$282 Find Cheap Flights from Washington to Basel

KAYAK searches hundreds of travel sites at once for deals on flights to Basel EuroAirport Swiss

Cheap Flights from Washington to Basel

Recent round-trip flight deals from Washington to Basel

Recent one-way flight deals from Washington to Basel

Good to know

FAQs for booking Washington to Basel flights

How does KAYAK find such low prices on flights from Washington to Basel?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Basel.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Basel?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Basel?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Basel?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Basel

Information on your arrival and departure airports

Cabin class types available on flights to Basel

Complete your trip to Basel with a hotel stay or car rental

Find direct flights for Basel

Flights to other popular destinations

Flights from domestic origins to Washington

Choose which airport to fly into in Basel

Find deals for your return flight