$367 Find Cheap Flights from Bilbao to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bilbao to Illinois departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Bilbao to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bilbao to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bilbao to Illinois

Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
9:15 am - 2:55 pm
BIO
-
ORD
12h 40m
1 stop
American Airlines Logo
5:40 pm - 12:50 pm
ORD
-
BIO
12h 10m
1 stop
$465American Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
9:15 am - 2:55 pm
BIO
-
ORD
12h 40m
1 stop
Multiple Airlines Logo
5:40 pm - 12:50 pm
ORD
-
BIO
12h 10m
1 stop
$466Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
6:45 am - 2:55 pm
BIO
-
ORD
15h 10m
1 stop
Multiple Airlines Logo
11:38 am - 8:30 am
ORD
-
BIO
13h 52m
2 stops
$489Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
9:15 am - 2:55 pm
BIO
-
ORD
12h 40m
1 stop
American Airlines Logo
11:53 am - 8:30 am
ORD
-
BIO
13h 37m
2 stops
$490American Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
6:45 am - 2:55 pm
BIO
-
ORD
15h 10m
1 stop
Multiple Airlines Logo
2:54 pm - 11:15 pm
ORD
-
BIO
25h 21m
2 stops
$493Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Iberia Logo
9:35 pm - 2:55 pm
BIO
-
ORD
24h 20m
1 stop
Iberia Logo
5:40 pm - 11:15 pm
ORD
-
BIO
22h 35m
1 stop
$520Iberia
Thu, Feb 26 - Mon, Mar 2
Delta Logo
6:50 am - 5:37 pm
BIO
-
MDW
17h 47m
2 stops
Delta Logo
6:40 pm - 5:20 pm
MDW
-
BIO
15h 40m
2 stops
$553Delta
Thu, Feb 26 - Mon, Mar 2
Delta Logo
6:50 am - 5:37 pm
BIO
-
MDW
17h 47m
2 stops
Delta Logo
6:40 pm - 5:20 pm
MDW
-
BIO
15h 40m
2 stops
$576Delta
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
6:45 am - 8:23 pm
BIO
-
STL
20h 38m
2 stops
United Airlines Logo
11:39 am - 10:50 am
STL
-
BIO
16h 11m
2 stops
$769United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
6:45 am - 9:40 pm
BIO
-
STL
21h 55m
2 stops
United Airlines Logo
6:55 pm - 11:05 pm
STL
-
BIO
21h 10m
2 stops
$770United Airlines
Booking Insights

KAYAK's insights & trends for Bilbao to Illinois flights

Get data-powered insights and trends into flights from Bilbao to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Bilbao to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Bilbao to Illinois departing in February.

What is the cheapest month to fly from Bilbao to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bilbao to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bilbao to Illinois is February, when tickets cost $436 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $842 and $765 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$367
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Bilbao to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Bilbao to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bilbao to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bilbao to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Bilbao to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bilbao to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Bilbao to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bilbao to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Bilbao to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Bilbao to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Bilbao to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bilbao to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 7768 reviews
6.8Comfort
6.5Entertainment
6.3Food
7.6Crew
7.0Boarding
Airline reviews

Very good. Comfortable and I felt well taken care of from start to finish

10.0 ExcellentAnonymous, Feb 2026
MUC - ORD
Read more Lufthansa reviews

Very good. Comfortable and I felt well taken care of from start to finish

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Food was poor quality and the screens for entertainment didn’t work properly

It was a short flight, everything was good with it.

It was as good as a flight in economy can be.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

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

Information on your arrival and departure airports

Bilbao (BIO)