Find Cheap Flights from Washington to Bilbao (WAS - 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 Washington to Bilbao

(Round-trip)
Depart: Mon Aug 14 2017 Return: Sun Aug 27 2017 Trip spans 14 days
British Airways
British Airways
IAD
6:20p
BIO
8:50a
14h 30m
1 stop
BIO
9:30a
IAD
1:07p
27h 37m
2 stops
Depart: Wed Aug 30 2017 Return: Fri Sep 15 2017 Trip spans 17 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
BIO
2:00a
31h 00m
1 stop
BIO
8:55a
IAD
9:10p
36h 15m
1 stop
Depart: Tue Oct 3 2017 Return: Wed Oct 11 2017 Trip spans 9 days
TAP Portugal
TAP Portugal
IAD
6:43a
BIO
8:55a
26h 12m
2 stops
BIO
3:00a
IAD
8:14p
17h 14m
2 stops
Depart: Tue Aug 15 2017 Return: Sun Aug 27 2017 Trip spans 13 days
Major Airline
Major Airline
IAD
9:30a
BIO
8:45p
11h 15m
1 stop
BIO
10:45p
IAD
12:20p
13h 35m
1 stop
Depart: Sat Aug 19 2017 Return: Fri Aug 25 2017 Trip spans 7 days
$1011
Select
Aer Lingus
Aer Lingus
IAD
1:15p
BIO
6:25a
17h 10m
1 stop
BIO
1:05p
IAD
5:35p
28h 30m
1 stop
Depart: Tue Jul 18 2017 Return: Fri Jul 28 2017 Trip spans 11 days
$1158
Select
Royal Air Maroc
Royal Air Maroc
IAD
5:55p
BIO
9:20a
15h 25m
1 stop
BIO
4:20p
IAD
9:55p
29h 35m
1 stop
Depart: Tue Sep 5 2017 Return: Tue Sep 12 2017 Trip spans 8 days
$1172
Select
Brussels Airlines
Brussels Airlines
IAD
1:50p
BIO
12:40p
22h 50m
1 stop
BIO
2:45a
IAD
2:55p
12h 10m
1 stop
Depart: Fri Jul 14 2017 Return: Mon Jul 24 2017 Trip spans 11 days
$1246
Select
Iberia
Iberia
DCA
10:39a
BIO
1:30a
14h 51m
2 stops
BIO
9:30a
DCA
1:00a
15h 30m
2 stops
Depart: Tue May 23 2017 Return: Tue Jun 27 2017 Trip spans 36 days
$1269
Select
Lufthansa
Lufthansa
IAD
1:30p
BIO
12:45a
11h 15m
1 stop
BIO
3:55a
IAD
9:00p
17h 05m
1 stop
Depart: Sat May 27 2017 Return: Tue Jun 27 2017 Trip spans 32 days
$1296
Select
United
United
IAD
6:25p
BIO
8:10a
37h 45m
2 stops
BIO
2:45a
IAD
4:20p
13h 35m
1 stop
Depart: Fri Jun 2 2017 Return: Sun Jun 11 2017 Trip spans 10 days
$1334
Select
KLM
KLM
IAD
1:40p
BIO
1:20a
11h 40m
1 stop
BIO
2:10p
IAD
5:35p
27h 25m
2 stops
Depart: Tue May 9 2017 Return: Mon May 22 2017 Trip spans 14 days
$1354
Select
American Airlines
American Airlines
DCA
9:55a
BIO
2:45a
16h 50m
2 stops
BIO
4:15a
DCA
9:19p
17h 04m
2 stops
Depart: Wed Aug 16 2017 Return: Sun Aug 27 2017 Trip spans 12 days
British Airways
British Airways
IAD
2:00p
BIO
8:50a
18h 50m
1 stop
BIO
9:30a
IAD
1:07p
27h 37m
2 stops
Depart: Mon May 1 2017 Return: Mon May 15 2017 Trip spans 15 days
$1594
Select
Air France
Air France
DCA
10:40a
BIO
12:20a
13h 40m
2 stops
BIO
7:00a
DCA
12:33a
17h 33m
2 stops
Depart: Sun Sep 3 2017 Return: Tue Sep 12 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
BIO
2:00a
31h 00m
1 stop
BIO
8:55a
IAD
9:10p
36h 15m
1 stop
Depart: Tue Sep 26 2017 Return: Wed Oct 4 2017 Trip spans 9 days
TAP Portugal
TAP Portugal
DCA
9:44a
BIO
1:25p
27h 41m
2 stops
BIO
3:00a
DCA
7:27p
16h 27m
2 stops
Depart: Fri Oct 13 2017 Return: Sun Oct 22 2017 Trip spans 10 days
British Airways
British Airways
DCA
11:05a
BIO
10:20a
23h 15m
2 stops
BIO
4:15a
DCA
12:26a
20h 11m
2 stops
Depart: Mon Sep 4 2017 Return: Tue Sep 12 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
BIO
6:05a
35h 05m
1 stop
BIO
8:55a
IAD
9:10p
36h 15m
1 stop
Depart: Sat May 20 2017 Return: Fri Jun 9 2017 Trip spans 21 days
British Airways
British Airways
DCA
1:47p
BIO
1:30a
35h 43m
2 stops
BIO
2:45a
DCA
6:31p
15h 46m
2 stops
Depart: Thu Sep 7 2017 Return: Tue Sep 19 2017 Trip spans 13 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
BIO
6:05a
35h 05m
1 stop
BIO
8:55a
IAD
9:10p
36h 15m
1 stop
* 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

Washington
only $740
only $767
Destination

Bilbao
$740