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Cheap flights from Chicago to Bilbao from $320

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 10/18. 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
1 adult, Economy, 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.
TAP AIR PORTUGAL Logo
6:00 pm - 5:35 pm
ORD
-
BIO
16h 35m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pm
BIO
-
ORD
28h 10m
1 stop
$579TAP AIR PORTUGAL
Fri, Oct 9 - Tue, Oct 20
TAP AIR PORTUGAL Logo
6:00 pm - 5:35 pm
ORD
-
BIO
16h 35m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pm
BIO
-
ORD
28h 10m
1 stop
$580TAP AIR PORTUGAL
Fri, Oct 9 - Tue, Oct 20
Turkish Airlines Logo
8:10 pm - 5:25 pm
ORD
-
BIO
38h 15m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
BIO
-
ORD
28h 35m
1 stop
$721Turkish Airlines
Tue, Sep 8 - Tue, Sep 15
Turkish Airlines Logo
11:25 am - 5:20 pm
ORD
-
BIO
22h 55m
1 stop
Turkish Airlines Logo
5:15 pm - 11:00 am
BIO
-
ORD
23h 45m
1 stop
$723Turkish Airlines
Tue, Oct 20 - Thu, Oct 29
Multiple Airlines Logo
11:25 am - 5:30 pm
ORD
-
BIO
23h 05m
2 stops
Multiple Airlines Logo
7:40 am - 9:40 am
BIO
-
ORD
33h 00m
2 stops
$724Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
11:25 am - 5:30 pm
ORD
-
BIO
23h 05m
2 stops
Multiple Airlines Logo
7:40 am - 9:40 am
BIO
-
ORD
33h 00m
2 stops
$730Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
11:25 am - 5:30 pm
ORD
-
BIO
23h 05m
2 stops
Multiple Airlines Logo
7:40 am - 9:40 am
BIO
-
ORD
33h 00m
2 stops
$731Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
11:25 am - 5:30 pm
ORD
-
BIO
23h 05m
2 stops
Multiple Airlines Logo
7:40 am - 9:40 am
BIO
-
ORD
33h 00m
2 stops
$732Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Delta Logo
10:58 am - 11:15 am
MDW
-
BIO
17h 17m
2 stops
Delta Logo
6:50 am - 6:05 pm
BIO
-
MDW
17h 15m
2 stops
$749Delta
Tue, Oct 20 - Thu, Oct 29
Delta Logo
10:58 am - 11:15 am
MDW
-
BIO
17h 17m
2 stops
Delta Logo
6:50 am - 6:05 pm
BIO
-
MDW
17h 15m
2 stops
$750Delta
Tue, Oct 20 - Thu, Oct 29

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TAP AIR PORTUGAL flights from Chicago to Bilbao

Our best TAP AIR PORTUGAL deals on Chicago to Bilbao flight tickets
TAP AIR PORTUGAL
Oct 9
ORD6:00 pmChicago O'Hare Intl
16h 35m
1 stop
BIO5:35 pmBilbao
Oct 20
BIO6:50 pmBilbao
28h 10m
1 stop
ORD4:00 pmChicago O'Hare Intl
$579
TAP AIR PORTUGAL
Oct 9
ORD6:00 pmChicago O'Hare Intl
16h 35m
1 stop
BIO5:35 pmBilbao
Oct 20
BIO6:50 pmBilbao
28h 10m
1 stop
ORD4:00 pmChicago O'Hare Intl
$580

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets
Turkish Airlines
Sep 8
ORD8:10 pmChicago O'Hare Intl
38h 15m
1 stop
BIO5:25 pmBilbao
Sep 15
BIO12:05 pmBilbao
28h 35m
1 stop
ORD9:40 amChicago O'Hare Intl
$721
Turkish Airlines
Oct 20
ORD11:25 amChicago O'Hare Intl
22h 55m
1 stop
BIO5:20 pmBilbao
Oct 29
BIO5:15 pmBilbao
23h 45m
1 stop
ORD11:00 amChicago O'Hare Intl
$723
Turkish Airlines
Sep 8
ORD8:10 pmChicago O'Hare Intl
38h 15m
1 stop
BIO5:25 pmBilbao
Sep 15
BIO12:05 pmBilbao
28h 35m
1 stop
ORD9:40 amChicago O'Hare Intl
$737

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 July 26, 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

Fri 10/9

6:00 pm-5:35 pm

1 stop16h 35m

Bilbao

Tue 10/20

6:50 pm-4:00 pm

1 stop28h 10m

$579

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 10/9

6:00 pm-5:35 pm

1 stop16h 35m

Bilbao

Tue 10/20

6:50 pm-4:00 pm

1 stop28h 10m

$580

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

8:10 pm-5:25 pm

1 stop38h 15m

Bilbao

Tue 9/15

12:05 pm-9:40 am

1 stop28h 35m

$721

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 10/20

11:25 am-5:20 pm

1 stop22h 55m

Bilbao

Thu 10/29

5:15 pm-11:00 am

1 stop23h 45m

$723

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

11:25 am-5:30 pm

2 stops23h 05m

Bilbao

Tue 9/15

7:40 am-9:40 am

2 stops33h 00m

$724

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

11:25 am-5:30 pm

2 stops23h 05m

Bilbao

Tue 9/15

7:40 am-9:40 am

2 stops33h 00m

$730

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

11:25 am-5:30 pm

2 stops23h 05m

Bilbao

Tue 9/15

7:40 am-9:40 am

2 stops33h 00m

$731

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

11:25 am-5:30 pm

2 stops23h 05m

Bilbao

Tue 9/15

7:40 am-9:40 am

2 stops33h 00m

$732
Quickest round-trip

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Tue 10/20

10:58 am-11:15 am

2 stops17h 17m

Bilbao

Thu 10/29

6:50 am-6:05 pm

2 stops17h 15m

$749

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Tue 10/20

10:58 am-11:15 am

2 stops17h 17m

Bilbao

Thu 10/29

6:50 am-6:05 pm

2 stops17h 15m

$750

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between Chicago and Bilbao?

Prices are currently low for flights on this route.

Typical prices usually range from $964 to $1,200.
The lowest price recently found on this route was $579.

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 $640, 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 February is your next best option. Flight prices from Chicago to Bilbao during February average around $739.

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

11h 55m

Direct flights

None
The fastest flight from Chicago to Bilbao takes 11h 55m
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 11h 55m.

  • 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.

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
8,157 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
10,041 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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