Find Cheap Flights from Seattle/Tacoma Intl to Bilbao (SEA - BIO)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
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 Seattle/Tacoma Intl to Bilbao

(Round-trip)
Depart: Sat Sep 2 2017 Return: Thu Sep 21 2017 Trip spans 20 days
Major Airline
Major Airline
SEA
6:20a
BIO
12:45a
18h 25m
2 stops
BIO
10:45p
SEA
7:35p
20h 50m
2 stops
Depart: Sun Dec 24 2017 Return: Sat Dec 30 2017 Trip spans 7 days
$1264
Select
British Airways
British Airways
SEA
3:30a
BIO
2:50a
23h 20m
2 stops
BIO
2:55p
SEA
12:49a
33h 54m
2 stops
Depart: Tue Jul 25 2017 Return: Tue Aug 15 2017 Trip spans 22 days
$1663
Select
Brussels Airlines
Brussels Airlines
SEA
2:30a
BIO
9:40a
31h 10m
2 stops
BIO
2:45a
SEA
2:49a
24h 04m
2 stops
Depart: Sat Jul 29 2017 Return: Tue Aug 15 2017 Trip spans 18 days
$1720
Select
United
United
SEA
6:17p
BIO
4:45a
34h 28m
2 stops
BIO
2:45a
SEA
11:49p
21h 04m
2 stops
Depart: Fri Sep 1 2017 Return: Sun Sep 10 2017 Trip spans 10 days
Major Airline
Major Airline
SEA
3:59p
BIO
3:45a
35h 46m
2 stops
BIO
12:15a
SEA
10:11a
33h 56m
2 stops
Depart: Fri Dec 22 2017 Return: Sat Dec 30 2017 Trip spans 9 days
$1268
Select
British Airways
British Airways
SEA
1:15p
BIO
9:20p
32h 05m
1 stop
BIO
2:55p
SEA
12:49a
33h 54m
2 stops
Depart: Sat Dec 23 2017 Return: Sat Dec 30 2017 Trip spans 8 days
$1268
Select
British Airways
British Airways
SEA
8:45a
BIO
5:00a
20h 15m
1 stop
BIO
2:55p
SEA
12:49a
33h 54m
2 stops
Depart: Mon Jul 3 2017 Return: Mon Jul 10 2017 Trip spans 8 days
$1276
Select
Major Airline
Major Airline
SEA
11:15a
BIO
1:50a
14h 35m
1 stop
BIO
4:20a
SEA
6:10p
13h 50m
1 stop
Depart: Sun Jul 30 2017 Return: Tue Aug 15 2017 Trip spans 17 days
$1663
Select
Brussels Airlines
Brussels Airlines
SEA
2:30a
BIO
9:40a
31h 10m
2 stops
BIO
2:45a
SEA
2:49a
24h 04m
2 stops
Depart: Mon Jul 31 2017 Return: Tue Aug 15 2017 Trip spans 16 days
$1664
Select
Brussels Airlines
Brussels Airlines
SEA
3:25a
BIO
9:40a
30h 15m
2 stops
BIO
2:45a
SEA
2:49a
24h 04m
2 stops
Depart: Fri Jun 23 2017 Return: Fri Jun 30 2017 Trip spans 8 days
$2413
Select
British Airways
British Airways
SEA
9:30a
BIO
7:20a
21h 50m
1 stop
BIO
5:30a
SEA
3:42a
22h 12m
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

Seattle
$853
Destination

Bilbao
$853