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Illinois

$384+ Cheap flights from Bilbao (BIO) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — ORD
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Bilbao to Illinois

Cheapest flights from Bilbao to Illinois
Explore the most affordable flight options available from Bilbao to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This lol.travel deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:45 am
BIO
-
ORD
1 stop14h 30m
Finnair
Mon 4/1310:15 pm
ORD
-
BIO
1 stop18h 00m
Finnair
Deal found 1/26$389
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:45 am
BIO
-
ORD
1 stop16h 15m
Multiple Airlines
Mon 4/133:35 pm
ORD
-
BIO
2 stops24h 40m
Multiple Airlines
Deal found 1/26$405
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/59:15 am
BIO
-
ORD
1 stop12h 40m
American Airlines
Tue 2/103:55 pm
ORD
-
BIO
2 stops13h 55m
American Airlines
Deal found 1/26$419
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:45 am
BIO
-
ORD
1 stop14h 30m
Finnair
Sat 5/910:25 pm
ORD
-
BIO
1 stop17h 50m
Finnair
Deal found 1/26$423
This American Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:45 am
BIO
-
ORD
1 stop15h 29m
American Airlines
Wed 3/1811:50 am
ORD
-
BIO
2 stops14h 40m
American Airlines
Deal found 1/24$424
This Iberia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:45 am
BIO
-
ORD
1 stop15h 10m
Iberia
Tue 2/103:55 pm
ORD
-
BIO
2 stops24h 20m
Iberia
Deal found 1/26$440
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:45 am
BIO
-
ORD
2 stops37h 35m
Multiple Airlines
Sat 5/93:35 pm
ORD
-
BIO
2 stops24h 40m
Multiple Airlines
Deal found 1/26$444
This Iberia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:50 pm
BIO
-
ORD
1 stop21h 30m
Iberia
Wed 5/610:25 pm
ORD
-
BIO
1 stop27h 05m
Iberia
Deal found 1/26$454
This Iberia deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/49:35 pm
BIO
-
ORD
1 stop24h 20m
Iberia
Sun 2/83:55 pm
ORD
-
BIO
2 stops21h 55m
Iberia
Deal found 1/24$459
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:50 am
BIO
-
ORD
1 stop15h 00m
United Airlines
Sun 5/175:55 pm
ORD
-
BIO
1 stop22h 30m
United Airlines
Deal found 1/25$467
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:50 am
BIO
-
MDW
2 stops21h 41m
Delta
Wed 3/186:07 pm
MDW
-
BIO
2 stops16h 23m
Delta
Deal found 1/24$587
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:50 am
BIO
-
MDW
2 stops17h 39m
Delta
Sun 2/1511:45 am
MDW
-
BIO
2 stops16h 45m
Delta
Deal found 1/25$596

Find flight deals from Bilbao to Illinois

Keep the following information in mind while searching for Bilbao to Illinois flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(lol.travel)

One-way from

$384
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$559
Provider with most accurate pricing for Bilbao-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Chicago (CHI) flights.
Search Deals
From Bilbao to Illinois
Search Deals
One-way flight from Bilbao to Illinois
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Bilbao to Illinois that are best for you.

Fly from

Bilbao

Fly to

Illinois

Route

Depart

Return

Price

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/9

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 4/13

10:15 pm-11:15 pm

1 stop18h 00m

$389

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 5/9

3:35 pm-11:15 pm

2 stops24h 40m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 5/9

10:25 pm-11:15 pm

1 stop17h 50m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 4/18

6:50 am-7:55 pm

1 stop20h 05m

Chicago O'Hare Intl

Sun 5/17

9:40 pm-11:25 pm

1 stop18h 45m

$467

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 3/11

6:45 am-9:30 pm

2 stops20h 45m

Chicago O'Hare Intl

Wed 3/18

4:04 pm-11:15 pm

2 stops25h 11m

$483

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/9

6:45 am-7:54 pm

2 stops20h 09m

Chicago O'Hare Intl

Mon 4/13

3:35 pm-11:15 pm

2 stops24h 40m

$493

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 5/1

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Wed 5/6

10:25 pm-11:15 pm

1 stop17h 50m

$500

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Wed 2/11

6:50 am-5:29 pm

2 stops17h 39m

Chicago Midway

Sun 2/15

11:45 am-11:30 am

2 stops16h 45m

$596

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 4/9

6:50 am-5:22 pm

2 stops17h 32m

Chicago Midway

Mon 4/13

10:43 am-9:50 am

2 stops16h 07m

$613

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Fri 5/1

6:45 am-5:58 pm

2 stops18h 13m

Chicago Midway

Wed 5/6

9:27 am-11:15 am

2 stops18h 48m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 25 results
1
2
3

Best time to book a flight from Bilbao to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Bilbao with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bilbao to Illinois

How much does it cost to fly round-trip from Bilbao to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 27, 2026.
Peruse reviews from past customers who have flown with Lufthansa from Bilbao to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,748 reviews

Overall

6.8

Comfort

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
Lufthansa
6.8
Okay
7,748 reviews
Lufthansa
6.8
Okay
7,748 reviews

Overall

6.8

Comfort

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines

Related info for your journey

Find useful and relevant information for your journey from Bilbao to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Bilbao to Illinois?

    Located just 3.0 mi from the city center, Bilbao (BIO) is the airport most travelers will use when flying to Illinois from Bilbao.

  • How long is the flight from Bilbao to Illinois?

    Departing from Bilbao to Illinois will take you 14h 30m. Bilbao and Illinois are separated by a distance of 4116 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Bilbao to Illinois?

    The most popular route from Bilbao to Illinois is Bilbao - Chicago O'Hare Intl. You may also consider Bilbao - Chicago Midway or Bilbao - Lambert-St Louis.

  • Can I find deals for flights from Bilbao to Illinois that include hotel bookings?

    Yes. In addition to deals on Bilbao to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to Illinois.

  • Can I find deals for business class flights from Bilbao to Illinois?

    Yes. Cheapflights offers flight deals from Bilbao to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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