ORD - BIO

$444 Find Cheap Flights from Chicago to Bilbao - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$576
Typical prices: $803-$1,179
Finnair
Fri 10/5Sun 10/21
ORD - BIO • 1 stop
Cheapest one-way
$444
Typical prices: $459-$644
SWISS
Thu 10/11
ORD - BIO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Bilbao. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
March
Cheapest • 33% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Lisbon Humberto Delgado (LIS)
Cheapest • Avg $591 (round-trip)
Newark (EWR)
Shortest trip • 12h 38m (one-way)
Insights
Insights
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We hope you love your trip to Bilbao!
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Flight Deals

Cheap Flights from Chicago to Bilbao (ORD-BIO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Bilbao

Mon, Oct 5 - Wed, Oct 21
Finnair Logo
10:20 pm - 11:15 pmORD  Chicago O'Hare Intl-BIO Bilbao
17h 55m1 stop Madrid Barajas
Finnair Logo
6:45 am - 2:25 pmBIO  Bilbao-ORD Chicago O'Hare Intl
14h 40m1 stop Madrid Barajas
$576Finnair
Mon, Oct 5 - Wed, Oct 21
British Airways Logo
9:02 am - 8:30 amORD  Chicago O'Hare Intl-BIO Bilbao
16h 28m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:15 am - 2:25 pmBIO  Bilbao-ORD Chicago O'Hare Intl
12h 10m1 stop Madrid Barajas
$696British Airways
Tue, Oct 20 - Tue, Oct 27
Turkish Airlines Logo
11:25 am - 5:25 pmORD  Chicago O'Hare Intl-BIO Bilbao
23h 00m1 stop Istanbul
Turkish Airlines Logo
11:55 am - 11:00 amBIO  Bilbao-ORD Chicago O'Hare Intl
29h 05m1 stop Istanbul
$704Turkish Airlines
Mon, Oct 5 - Wed, Oct 21
British Airways Logo
9:02 am - 8:30 amORD  Chicago O'Hare Intl-BIO Bilbao
16h 28m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:35 pm - 3:55 pmBIO  Bilbao-ORD Chicago O'Hare Intl
25h 20m2 stops Madrid Barajas London Heathrow
$717British Airways
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
9:50 pm - 9:55 pmORD  Chicago O'Hare Intl-BIO Bilbao
17h 05m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:45 am - 1:10 pmBIO  Bilbao-ORD Chicago O'Hare Intl
13h 25m1 stop Frankfurt am Main
$728United Airlines
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
9:50 pm - 9:55 pmORD  Chicago O'Hare Intl-BIO Bilbao
17h 05m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:45 am - 11:15 pmBIO  Bilbao-ORD Chicago O'Hare Intl
23h 30m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$738United Airlines
Sun, Dec 27 - Thu, Dec 31
United Airlines Logo
9:50 pm - 9:55 pmORD  Chicago O'Hare Intl-BIO Bilbao
17h 05m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:45 am - 10:15 pmBIO  Bilbao-ORD Chicago O'Hare Intl
22h 30m3 stops Frankfurt am Main Boston Logan Intl Newark
$769United Airlines
Fri, Oct 9 - Tue, Oct 20
Lufthansa Logo
3:35 pm - 5:55 pmORD  Chicago O'Hare Intl-BIO Bilbao
19h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
11:10 am - 7:55 pmBIO  Bilbao-ORD Chicago O'Hare Intl
15h 45m1 stop Frankfurt am Main
$825Lufthansa
Sun, Oct 4 - Sun, Oct 11
Lufthansa Logo
3:35 pm - 5:55 pmORD  Chicago O'Hare Intl-BIO Bilbao
19h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:50 am - 12:55 pmBIO  Bilbao-ORD Chicago O'Hare Intl
13h 05m1 stop Frankfurt am Main
$825Lufthansa
Mon, Nov 23 - Mon, Nov 30
Lufthansa Logo
9:50 pm - 11:10 pmORD  Chicago O'Hare Intl-BIO Bilbao
18h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:30 pm - 6:25 pmBIO  Bilbao-ORD Chicago O'Hare Intl
30h 55m1 stop Munich Franz Josef Strauss
$835Lufthansa
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Bilbao flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Chicago O'Hare Intl Airport to Bilbao with more confidence.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Bilbao?

Round-trip flights from Chicago O'Hare Intl Airport to Bilbao start at $576. Prices are below average for this route right now, with typical round-trip fares ranging from $803 to $1,179. The lowest price found in the past 5 days was $576 on Finnair.

What's the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Bilbao?

Thursday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Bilbao, it is 24% cheaper than the average day. Saturday is the most expensive day with flight prices 25% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Bilbao?

  • March is the cheapest month to fly from Chicago O'Hare Intl Airport to Bilbao at $635 round-trip.
  • July ($1,291) and June ($1,197) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 103% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Chicago O'Hare Intl Airport to Bilbao flights

Low season

January

Cheapest flight

$444
Best time to beat the crowds with an average 5% drop in price.
Flight from Chicago O'Hare Intl Airport to Bilbao

When to book flights from Chicago to Bilbao

Are your dates flexible? Find out the best times to travel from Chicago to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chicago O'Hare Intl Airport to Bilbao flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Bilbao?

    Flights from Chicago O'Hare Intl Airport to Bilbao usually depart from Chicago O'Hare Intl (ORD) and arrive at Bilbao (BIO).

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Bilbao?

    Three cabin classes are available on flights from Chicago O'Hare Intl Airport to Bilbao:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Bilbao pass through?

    One-stop flights from Chicago O'Hare Intl Airport to Bilbao most commonly connect through:

    • Frankfurt am Main (FRA) - 34% of one-stop connections
    • Madrid Barajas (MAD) - 23% of one-stop connections
    • Amsterdam Schiphol (AMS) - 16% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 11% of one-stop connections

    Frankfurt am Main (FRA) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Bilbao?

    Yes. Being flexible with your travel dates can save you up to 39% on the Chicago O'Hare Intl Airport to Bilbao route. Thursday is the cheapest departure day at $725 round-trip on average, while Saturday is the most expensive at $1,183, a difference of $458. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Chicago O'Hare Intl Airport to Bilbao?

    A nonstop flight from Chicago O'Hare Intl Airport to Bilbao takes 0h 00m, covering 4,116 miles.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Bilbao?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Chicago O'Hare Intl Airport to Bilbao looking right now?

    One-way fares from Chicago O'Hare Intl Airport to Bilbao are currently higher than usual. Average one-way flight prices are about $613, which is 10% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Bilbao?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 12h 38m, compared with 12h 57m via Paris Charles de Gaulle (CDG) and 13h 04m via Madrid Barajas (MAD).

  • What is the time difference between Chicago O'Hare Intl Airport and Bilbao?

    Bilbao is 7 hours ahead of Chicago O'Hare Intl Airport (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Bilbao Airport (BIO)?

    Bilbao Airport (BIO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:
    · Record go
    · Goldcar Rental SP
    · CLICK RENT
    · Rentbycar
    · Centauro

  • How much should I expect to pay for a Chicago O'Hare Intl Airport to Bilbao flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Bilbao range from $803 to $1,179, with an average of $946 over the past 12 months. Anything below $803 counts as a good deal.

Your guide to booking Chicago O'Hare Intl Airport to Bilbao flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $725 - about $458 less than Saturday (39% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Bilbao trip for March. Fares historically average $635 round-trip in that month - typically $656 less than the most expensive month, which is July (based on the last 12 months).

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