Cheap flights from Chicago to Bilbao from $335
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 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Sun 12/6
8:10 pm-6:35 pm
1 stop15h 25m
Bilbao
Sat 12/12
12:25 pm-3:30 pm
1 stop34h 05m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Sun 10/25
9:10 pm-5:55 pm
1 stop38h 45m
Bilbao
Tue 11/10
6:40 pm-3:30 pm
1 stop27h 50m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Wed 3/3
6:50 pm-9:20 pm
1 stop19h 30m
Bilbao
Tue 3/16
6:45 am-2:10 pm
1 stop13h 25m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Mon 1/11
5:40 pm-12:50 pm
1 stop12h 10m
Bilbao
Wed 1/27
9:15 am-2:55 pm
1 stop12h 40m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Tue 3/2
9:50 pm-9:55 pm
1 stop17h 05m
Bilbao
Fri 3/19
6:45 am-4:20 pm
1 stop15h 35m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Mon 3/1
6:00 pm-11:10 pm
1 stop22h 10m
Bilbao
Thu 3/18
6:45 am-4:20 pm
1 stop15h 35m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Tue 3/2
6:00 pm-9:55 pm
1 stop20h 55m
Bilbao
Thu 3/18
6:45 am-4:20 pm
1 stop15h 35m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Sun 2/28
9:50 pm-9:55 pm
1 stop17h 05m
Bilbao
Mon 3/15
6:30 pm-7:25 pm
1 stop30h 55m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Tue 3/2
9:50 pm-9:55 pm
1 stop17h 05m
Bilbao
Mon 3/15
6:30 pm-7:25 pm
1 stop30h 55m
ChicagoBilbao
ORD Chicago O'Hare Intl - BIO Bilbao
ORDBIO
Chicago O'Hare Intl
Mon 3/1
9:50 pm-11:10 pm
1 stop18h 20m
Bilbao
Mon 3/15
6:30 pm-7:25 pm
1 stop30h 55m
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
Which airport is the most popular layover for flights between Chicago and Bilbao?
Istanbul (IST) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Chicago to Bilbao?
Flights via Istanbul (IST) offer the lowest average round-trip price of $639.
Which layover airport has the shortest travel time from Chicago to Bilbao?
Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 13h 23m.
Which layover airport has the shortest connection time from Chicago to Bilbao?
Frankfurt am Main (FRA) has the shortest average layover time for this route: 2h 25m.
When to book flights from Chicago to Bilbao
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
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 50m.
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?
The number of operators available for flights from Chicago to Bilbao Airport is 2 as of October 2026.
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?
Based on momondo bookings for flights between Chicago and Bilbao, the leading airline is Iberia, making up 100% of the total bookings.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $528 | Free Cancellation | Rating 6.8 8,259 reviews | |||
| PriceFrom $724 | Free Cancellation | Rating 7.4 10,287 reviews |
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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.