Find Cheap Flights from Chicago O'Hare International to Bilbao (ORD - 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 Chicago O'Hare International to Bilbao

(Round-trip)
Depart: Sun Oct 22 2017 Return: Sun Nov 5 2017 Trip spans 15 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
BIO
1:00a
31h 20m
1 stop
BIO
11:30a
ORD
7:50p
32h 20m
1 stop
Depart: Mon Sep 18 2017 Return: Fri Sep 29 2017 Trip spans 12 days
Major Airline
Major Airline
ORD
11:30a
BIO
3:50a
16h 20m
1 stop
BIO
1:30a
ORD
1:10p
11h 40m
1 stop
Depart: Wed Aug 30 2017 Return: Tue Sep 12 2017 Trip spans 14 days
KLM
KLM
ORD
12:00p
BIO
11:45a
23h 45m
1 stop
BIO
3:10a
ORD
8:42p
17h 32m
2 stops
Depart: Wed Aug 23 2017 Return: Mon Aug 28 2017 Trip spans 6 days
Delta
Delta
ORD
5:06a
BIO
11:20p
18h 14m
2 stops
BIO
4:40a
ORD
10:08p
17h 28m
2 stops
Depart: Fri Nov 17 2017 Return: Thu Nov 23 2017 Trip spans 7 days
Aer Lingus
Aer Lingus
ORD
3:30p
BIO
2:35a
11h 05m
1 stop
BIO
10:15a
ORD
8:30p
34h 15m
1 stop
Depart: Tue Sep 12 2017 Return: Tue Sep 19 2017 Trip spans 8 days
$1022
Select
TAP Portugal
TAP Portugal
ORD
7:27a
BIO
7:55a
24h 28m
2 stops
BIO
3:35p
ORD
10:13p
30h 38m
2 stops
Depart: Tue Sep 19 2017 Return: Wed Sep 27 2017 Trip spans 9 days
Major Airline
Major Airline
ORD
2:30p
BIO
3:50a
13h 20m
1 stop
BIO
10:45p
ORD
1:10p
14h 25m
1 stop
Depart: Wed Sep 20 2017 Return: Fri Sep 29 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
BIO
1:00a
31h 20m
1 stop
BIO
8:55a
ORD
8:35p
35h 40m
1 stop
Depart: Wed Sep 13 2017 Return: Wed Sep 27 2017 Trip spans 15 days
Major Airline
Major Airline
ORD
7:25a
BIO
7:25a
24h 00m
2 stops
BIO
8:45a
ORD
10:45a
50h 00m
2 stops
Depart: Sat Jul 8 2017 Return: Sat Jul 15 2017 Trip spans 8 days
$1550
Select
Iberia
Iberia
ORD
12:55p
BIO
9:45a
20h 50m
1 stop
BIO
5:10p
ORD
1:20p
20h 10m
1 stop
Depart: Sun Sep 17 2017 Return: Fri Sep 29 2017 Trip spans 13 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
BIO
1:00a
31h 20m
1 stop
BIO
8:55a
ORD
8:35p
35h 40m
1 stop
Depart: Fri Sep 15 2017 Return: Thu Sep 28 2017 Trip spans 14 days
Aer Lingus
Aer Lingus
ORD
4:20p
BIO
5:25a
13h 05m
1 stop
BIO
1:05p
ORD
4:55p
27h 50m
1 stop
Depart: Sun Aug 27 2017 Return: Wed Sep 6 2017 Trip spans 11 days
KLM
KLM
ORD
8:25a
BIO
12:20a
15h 55m
2 stops
BIO
4:40a
ORD
8:42p
16h 02m
2 stops
Depart: Thu Sep 21 2017 Return: Fri Sep 29 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
BIO
5:05a
35h 25m
1 stop
BIO
8:55a
ORD
8:35p
35h 40m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Sep 6 2017 Trip spans 10 days
KLM
KLM
ORD
2:48p
BIO
5:15a
14h 27m
2 stops
BIO
3:10a
ORD
8:42p
17h 32m
2 stops
Depart: Fri Sep 1 2017 Return: Sun Sep 10 2017 Trip spans 10 days
Major Airline
Major Airline
ORD
4:00a
BIO
12:45a
20h 45m
2 stops
BIO
12:45p
ORD
5:07p
28h 22m
2 stops
Depart: Tue Aug 29 2017 Return: Wed Sep 6 2017 Trip spans 9 days
KLM
KLM
ORD
3:45p
BIO
5:15a
13h 30m
2 stops
BIO
3:10a
ORD
8:42p
17h 32m
2 stops
Depart: Sun Jul 2 2017 Return: Sun Jul 9 2017 Trip spans 8 days
$2184
Select
Lufthansa
Lufthansa
ORD
5:20p
BIO
6:45a
13h 25m
1 stop
BIO
7:30a
ORD
9:25p
13h 55m
1 stop
Depart: Sun Sep 3 2017 Return: Sat Sep 9 2017 Trip spans 7 days
$1008
Select
Aer Lingus
Aer Lingus
ORD
4:20p
BIO
5:25a
13h 05m
1 stop
BIO
1:05p
ORD
9:15p
32h 10m
1 stop
Depart: Fri Aug 25 2017 Return: Tue Sep 5 2017 Trip spans 12 days
$1170
Select
TAP Portugal
TAP Portugal
ORD
2:00a
BIO
12:25p
34h 25m
2 stops
BIO
3:35p
ORD
10:13p
30h 38m
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

Chicago
$583
Destination

Bilbao
$583