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Cheap flights from Chicago to Bilbao from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Bilbao departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$726Turkish Airlines
Tue, Sep 8 - Tue, Sep 15
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$737Turkish Airlines
Mon, Aug 31 - Tue, Sep 8
Turkish Airlines Logo
9:20 pm - 11:00 am
ORD
-
BIO
31h 40m
1 stop
Turkish Airlines Logo
12:00 pm - 11:05 am
BIO
-
ORD
30h 05m
1 stop
$765Turkish Airlines
Sat, Oct 24 - Mon, Nov 2
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$766Turkish Airlines
Mon, Sep 28 - Mon, Oct 5
Turkish Airlines Logo
11:25 am - 5:20 pm
ORD
-
BIO
22h 55m
1 stop
Turkish Airlines Logo
6:20 pm - 6:15 pm
BIO
-
ORD
30h 55m
1 stop
$767Turkish Airlines
Wed, Sep 2 - Wed, Oct 14
Lufthansa Logo
3:35 pm - 11:10 am
ORD
-
BIO
12h 35m
1 stop
Lufthansa Logo
11:00 am - 7:55 pm
BIO
-
ORD
15h 55m
1 stop
$778Lufthansa
Mon, Sep 28 - Fri, Oct 9
British Airways Logo
11:52 am - 8:30 am
ORD
-
BIO
13h 38m
2 stops
British Airways Logo
9:35 pm - 4:00 pm
BIO
-
ORD
25h 25m
1 stop
$782British Airways
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
6:00 pm - 4:00 pm
ORD
-
BIO
15h 00m
1 stop
United Airlines Logo
6:50 am - 12:55 pm
BIO
-
ORD
13h 05m
1 stop
$789United Airlines
Sun, Oct 4 - Wed, Oct 14
Delta Logo
1:21 pm - 9:50 am
MDW
-
BIO
13h 29m
2 stops
Delta Logo
6:45 am - 6:25 pm
BIO
-
MDW
18h 40m
2 stops
$919Delta
Mon, Jul 6 - Wed, Jul 22
Delta Logo
6:58 pm - 4:30 pm
MDW
-
BIO
14h 32m
2 stops
Delta Logo
6:45 am - 6:25 pm
BIO
-
MDW
18h 40m
2 stops
$923Delta
Tue, Jul 7 - Wed, Jul 22

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Delta flights from Chicago to Bilbao

Our best Delta deals on Chicago to Bilbao flight tickets
Delta
Sep 1
ORD7:00 amChicago O'Hare Intl
19h 50m
2 stops
BIO9:50 amBilbao
Oct 13
BIO6:45 amBilbao
14h 30m
1 stop
ORD2:15 pmChicago O'Hare Intl
$822
Delta
Sep 1
ORD7:00 amChicago O'Hare Intl
19h 50m
2 stops
BIO9:50 amBilbao
Oct 12
BIO6:45 amBilbao
14h 45m
1 stop
ORD2:30 pmChicago O'Hare Intl
$872
Delta
Aug 30
ORD5:10 pmChicago O'Hare Intl
17h 20m
1 stop
BIO5:30 pmBilbao
Oct 15
BIO6:45 amBilbao
14h 30m
1 stop
ORD2:15 pmChicago O'Hare Intl
$874

Lufthansa flights from Chicago to Bilbao

Our best Lufthansa deals on Chicago to Bilbao flight tickets
Lufthansa
Sep 28
ORD3:35 pmChicago O'Hare Intl
12h 35m
1 stop
BIO11:10 amBilbao
Oct 9
BIO11:00 amBilbao
15h 55m
1 stop
ORD7:55 pmChicago O'Hare Intl
$778
Lufthansa
Aug 31
ORD9:30 pmChicago O'Hare Intl
29h 40m
2 stops
BIO10:10 amBilbao
Oct 15
BIO2:00 pmBilbao
12h 55m
1 stop
ORD7:55 pmChicago O'Hare Intl
$853
Lufthansa
Sep 1
ORD10:30 pmChicago O'Hare Intl
17h 35m
1 stop
BIO11:05 pmBilbao
Sep 6
BIO7:40 amBilbao
17h 35m
1 stop
ORD6:15 pmChicago O'Hare Intl
$856

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 1, 2026.
Use the filters below to find and compare flights from Chicago to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Tue 9/15

12:10 pm-9:40 am

1 stop28h 30m

$726

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 8/31

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Tue 9/8

12:10 pm-9:40 am

1 stop28h 30m

$737

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 10/24

9:20 pm-11:00 am

1 stop31h 40m

Bilbao

Mon 11/2

12:00 pm-11:05 am

1 stop30h 05m

$765

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/28

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Mon 10/5

12:10 pm-9:40 am

1 stop28h 30m

$766

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/2

11:25 am-5:20 pm

1 stop22h 55m

Bilbao

Wed 10/14

6:20 pm-6:15 pm

1 stop30h 55m

$767

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/28

3:35 pm-11:10 am

1 stop12h 35m

Bilbao

Fri 10/9

11:00 am-7:55 pm

1 stop15h 55m

$778

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 8/12

11:52 am-8:30 am

2 stops13h 38m

Bilbao

Tue 8/18

9:35 pm-4:00 pm

1 stop25h 25m

$782
Quickest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 10/4

6:00 pm-4:00 pm

1 stop15h 00m

Bilbao

Wed 10/14

6:50 am-12:55 pm

1 stop13h 05m

$789

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Mon 7/6

1:21 pm-9:50 am

2 stops13h 29m

Bilbao

Wed 7/22

6:45 am-6:25 pm

2 stops18h 40m

$919

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Tue 7/7

6:58 pm-4:30 pm

2 stops14h 32m

Bilbao

Wed 7/22

6:45 am-6:25 pm

2 stops18h 40m

$923

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bilbao from

How to get the cheapest flight ticket from Chicago to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Chicago is in March. Flight prices, which tend to average around $528, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in March, then August is your next best option. Flight prices from Chicago to Bilbao during August average around $547.

When to book flights from Chicago to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Bilbao according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Bilbao (CHI to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Bilbao

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Chicago to Bilbao takes 13h 15m
There are no direct flights from Chicago to Bilbao. There are no popular flight routes from Chicago to Bilbao.
Search flight deals

Frequently asked questions about flying from Chicago to Bilbao

  • How far is Chicago to Bilbao by plane?

    The straight-line distance from Chicago to Bilbao is 4107.8 mi. A reasonable flight in good conditions will take 13h 15m.

  • When did momondo last update prices for flights from Chicago to Bilbao Airport?

    Prices for flights from Chicago to Bilbao Airport were last updated today.

  • How many operators does momondo search for flights from Chicago to Bilbao Airport?

  • How old do you have to be to fly from Chicago to Bilbao Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Bilbao Airport.

  • What documentation or ID do you need to fly to Bilbao Airport?

    The necessary travel and health documents for your Bilbao Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago to Bilbao?

Best airlines flying from Chicago to Bilbao

Compare and see reviews for airlines that fly from Chicago to Bilbao with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $584Free CancellationRating
6.8
7,964 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,675 reviews
Search United Airlines flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Getxo
Laredo
Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bilbao?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Bilbao for you.

Can I find flights from Chicago to Bilbao with flexible booking policies on momondo?

Yes. All flights to Bilbao from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Bilbao?

Once you have performed a search for Chicago to Bilbao flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Bilbao right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Bilbao now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bilbao and let you know when they change.

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