Find flights
Deals
When to book
FAQs & Tips

Find cheap flights from Basel to Washington from $463

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Basel to Washington departing on 4/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 4/27
Sat 5/4

Search hundreds of travel sites at once for deals on flights to Washington

In the last 7 days travelers have searched 47,025,654 times on KAYAK, and here is why:

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Washington Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seattle
Seattle1 stop$463
Portland
Portland1 stop$530

Good to know

Low season

November

High season

August

Cheapest flight

$463
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Basel to Seattle

FAQs - booking Washington flights

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

    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 Basel to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington from Basel 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 Basel to Washington?

    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 Washington with an airline and back to Basel with another airline.

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

    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 Washington from Basel up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Washington

  • Morning departure is around 77% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Book cheap flights from Basel to Washington

Recent round-trip flight deals

4/17Wed
1 stopAmerican Airlines
14h 50mBSL-SEA
4/21Sun
2 stopsAmerican Airlines
24h 23mSEA-BSL
$463
4/17Wed
1 stopAmerican Airlines
14h 50mBSL-SEA
4/21Sun
2 stopsAmerican Airlines
27h 06mSEA-BSL
$464
4/17Wed
2 stopsAmerican Airlines
18h 31mBSL-SEA
4/21Sun
2 stopsAmerican Airlines
24h 23mSEA-BSL
$469
4/17Wed
2 stopsAmerican Airlines
33h 47mBSL-SEA
4/21Sun
2 stopsAmerican Airlines
27h 06mSEA-BSL
$470
9/12Thu
1 stopRoyal Air Maroc
14h 25mBSL-SEA
10/9Wed
2 stopsRoyal Air Maroc
26h 12mSEA-BSL
$515
9/12Thu
1 stopRoyal Air Maroc
14h 25mBSL-SEA
10/9Wed
1 stopRoyal Air Maroc
18h 05mSEA-BSL
$519
9/12Thu
2 stopsBritish Airways
21h 27mBSL-SEA
10/9Wed
2 stopsBritish Airways
23h 47mSEA-BSL
$529
5/16Thu
1 stopIberia
13h 55mBSL-SEA
6/6Thu
2 stopsIberia
24h 23mSEA-BSL
$532
5/16Thu
1 stopKLM
12h 55mBSL-SEA
6/7Fri
1 stopKLM
14h 50mSEA-BSL
$542
6/3Mon
1 stopBritish Airways
20h 10mBSL-SEA
6/10Mon
1 stopBritish Airways
19h 50mSEA-BSL
$629

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/3Fri
2 stops
19h 32mBSL-SEA
$611
4/10Wed
1 stop
13h 45mBSL-SEA
$632
6/20Thu
2 stops
24h 29mBSL-SEA
$1,128
6/21Fri
2 stops
17h 03mBSL-SEA
$1,214
6/20Thu
1 stop
17h 20mBSL-SEA
$1,662

Search by stops

Search by price

Basel - Washington Flights

Departure:

Basel (BSL)Switzerland

Return flight deals:

Washington - Basel

Cabin classes: