Find Deals on Flights from Basel EuroAirport Swiss to Seattle

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Basel EuroAirport Swiss to Seattle

(Round-trip)
Depart: Mon May 1 2017 Return: Mon May 15 2017 Trip spans 15 days
Condor
Condor
BSL
7:20a
SEA
9:50p
14h 30m
1 stop
SEA
2:50p
BSL
4:25a
13h 35m
1 stop
Depart: Tue Apr 4 2017 Return: Tue Apr 11 2017 Trip spans 8 days
Turkish Airlines
Turkish Airlines
BSL
2:10p
SEA
3:05a
36h 55m
2 stops
SEA
9:45a
BSL
4:15a
42h 30m
2 stops
Depart: Wed Apr 5 2017 Return: Tue Apr 11 2017 Trip spans 7 days
$1014
Select
Lufthansa
Lufthansa
BSL
7:20a
SEA
12:24a
17h 04m
2 stops
SEA
8:00a
BSL
12:50a
16h 50m
2 stops
Depart: Sat Apr 1 2017 Return: Mon Apr 10 2017 Trip spans 10 days
$1038
Select
KLM
KLM
BSL
2:10a
SEA
4:12p
14h 02m
1 stop
SEA
9:45a
BSL
8:45a
23h 00m
1 stop
Depart: Wed Mar 8 2017 Return: Wed Mar 15 2017 Trip spans 7 days
$1071
Select
American Airlines
American Airlines
BSL
2:00a
SEA
8:15p
18h 15m
1 stop
SEA
7:21a
BSL
2:35a
19h 14m
2 stops
Depart: Thu Jun 29 2017 Return: Tue Jul 25 2017 Trip spans 27 days
$1113
Select
Delta
Delta
BSL
2:25a
SEA
7:00p
16h 35m
1 stop
SEA
9:20a
BSL
5:00a
19h 40m
2 stops
Depart: Wed Dec 21 2016 Return: Thu Jan 5 2017 Trip spans 16 days
$1230
Select
British Airways
British Airways
BSL
2:00a
SEA
8:15p
18h 15m
1 stop
SEA
8:40a
BSL
1:00a
16h 20m
1 stop
Depart: Mon Apr 3 2017 Return: Tue Apr 11 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
BSL
7:05a
SEA
3:05a
44h 00m
2 stops
SEA
9:45a
BSL
9:10p
35h 25m
2 stops
Depart: Thu Apr 6 2017 Return: Wed Apr 12 2017 Trip spans 7 days
$1038
Select
KLM
KLM
BSL
2:10a
SEA
4:12p
14h 02m
1 stop
SEA
9:45a
BSL
4:55a
19h 10m
1 stop
Depart: Sat Jun 3 2017 Return: Sat Jun 17 2017 Trip spans 15 days
$1001
Select
Turkish Airlines
Turkish Airlines
BSL
2:10p
SEA
2:29a
36h 19m
2 stops
SEA
9:20a
BSL
9:10p
35h 50m
2 stops
Depart: Fri Jun 30 2017 Return: Mon Jul 24 2017 Trip spans 25 days
$1116
Select
Lufthansa
Lufthansa
BSL
7:20a
SEA
11:24p
16h 04m
2 stops
SEA
11:30a
BSL
3:10a
15h 40m
2 stops
Depart: Tue Dec 27 2016 Return: Thu Jan 5 2017 Trip spans 10 days
$1196
Select
Delta
Delta
BSL
6:00a
SEA
7:22p
13h 22m
1 stop
SEA
7:58a
BSL
11:55p
15h 57m
1 stop
Depart: Sun Apr 2 2017 Return: Tue Apr 11 2017 Trip spans 10 days
$1034
Select
Turkish Airlines
Turkish Airlines
BSL
2:10p
SEA
3:43a
37h 33m
2 stops
SEA
9:45a
BSL
4:15a
42h 30m
2 stops
Depart: Fri Apr 7 2017 Return: Thu Apr 13 2017 Trip spans 7 days
$1142
Select
Lufthansa
Lufthansa
BSL
7:20a
SEA
12:24a
17h 04m
2 stops
SEA
8:00a
BSL
12:50a
16h 50m
2 stops
Depart: Sun Dec 18 2016 Return: Thu Dec 29 2016 Trip spans 12 days
$1234
Select
Lufthansa
Lufthansa
BSL
2:25a
SEA
3:50p
13h 25m
1 stop
SEA
5:05a
BSL
8:05p
15h 00m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Basel
$678
Destination

Seattle
$678