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Cheap Flights from Chicago O'Hare International to Bilbao

Compare Chicago O'Hare International to Bilbao flight deals

Find the cheapest month or even day of the year to fly to Bilbao

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Flight deals from Chicago O'Hare International Airport to Bilbao Airport

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to Bilbao Airport? If you want to travel next month, return fares start from R 7,586. Find the lowest prices on one-way and return tickets right here.
Bilbao.R 4,757 per passenger.Departing Sun, 23 Aug.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Chicago O'Hare International on Sun, 23 Aug, arriving in Bilbao.Price includes taxes and charges.From R 4,757, select.
Bilbao.R 4,911 per passenger.Departing Thu, 16 Apr.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Thu, 16 Apr, arriving in Bilbao.Price includes taxes and charges.From R 4,911, select.
Bilbao.R 5,123 per passenger.Departing Sat, 9 May.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Sat, 9 May, arriving in Bilbao.Price includes taxes and charges.From R 5,123, select.
Bilbao.R 5,267 per passenger.Departing Wed, 30 Sep.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Chicago O'Hare International on Wed, 30 Sep, arriving in Bilbao.Price includes taxes and charges.From R 5,267, select.
Bilbao.R 6,001 per passenger.Departing Wed, 22 Jul.One-way flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Chicago O'Hare International on Wed, 22 Jul, arriving in Bilbao.Price includes taxes and charges.From R 6,001, select.
Bilbao.R 6,171 per passenger.Departing Mon, 1 Jun.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Mon, 1 Jun, arriving in Bilbao.Price includes taxes and charges.From R 6,171, select.
Bilbao.R 6,964 per passenger.Departing Mon, 5 Oct.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Chicago O'Hare International on Mon, 5 Oct, arriving in Bilbao.Price includes taxes and charges.From R 6,964, select.
Bilbao.R 7,309 per passenger.Departing Sun, 15 Mar.One-way flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Chicago O'Hare International on Sun, 15 Mar, arriving in Bilbao.Price includes taxes and charges.From R 7,309, select.

Find the cheapest month to fly from Chicago O'Hare International to Bilbao

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Bilbao flights are currently cheapest in August.
Mar
from R 7,309
Apr
from R 4,911
May
from R 5,123
Jun
from R 6,171
Jul
from R 6,001
Aug
from R 4,757
Sep
from R 5,267
Oct
from R 6,964
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
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Chicago O'Hare International to Bilbao: Alternative routes

Compare routes from Chicago O'Hare International to Bilbao below. You may find an airport to fly into that's cheaper, faster, or easier than Bilbao.

Bilbao

5km from central Bilbao
ClosestCheapest
from R 4,757
Search flights

Vitoria

46km from central Bilbao
from R 6,901
Search flights

Santander

74km from central Bilbao
from R 6,572
Search flights

Chicago to Bilbao: Flight information

The things to know before you go.
Cheapest flight foundR 4,757
Cheapest month to flyAugust

Finding cheap flights from Chicago O'Hare International to Bilbao: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to Bilbao is R 7,586. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago O'Hare International to Bilbao. But we found flights with one or more stops from R 7,586.
As of March 2026, there are no flights flying from Chicago O'Hare International to Bilbao.
The cheapest month to fly from Chicago O'Hare International to Bilbao is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Bilbao Airport on Wednesday, 22 April 2026.
No airlines currently offer direct flights between Chicago O'Hare International Airport and Bilbao Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bilbao but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bilbao is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Icelandair offers the cheapest flight tickets to Bilbao.

Travelling from O'Hare International Airport (ORD) to Bilbao Airport (BIO): what you need to know

  • Bilbao's timezone is UTC+1, making Bilbao six hours ahead of Chicago.

  • To ensure you get on your ORD to BIO flight, leave enough time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the standard rule.

  • You'll likely experience bigger queues in popular months such as August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a smart move.

  • Consider adding a stopover when booking your ticket from O'Hare International Airport to Bilbao Airport. Just deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between ORD and BIO:

    • Dublin Airport

    • Charles de Gaulle Airport

    • Frankfurt Airport

How to find the cheapest flights from O'Hare International Airport (ORD) to Bilbao Airport (BIO)

  • Currently, R 4,757 is the cheapest price we've found for a one-way O'Hare International Airport to Bilbao Airport flight. The best price for a return plane ticket is R 7,586. Bear in mind that fares may change due to availability when booking.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from ORD to BIO if you book in advance. Airlines often have some terrific early bird rates.

  • Finding cheap flights from O'Hare International Airport to Bilbao Airport is easy if you're flexible with your trip dates. Use the 'Whole month' tool to see the best prices throughout the month and score a great deal.

  • Save time searching for cheap flights from ORD to BIO by setting up a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from O'Hare International Airport to Bilbao Airport.

Handy information about O'Hare International Airport (ORD)

  • ORD is located at 10000 West O'Hare.

  • Of all flights departing from O'Hare International Airport, 74.85% arrive as scheduled at their destination.

  • O'Hare International Airport is about 40 kilometres from central Chicago. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 35 minutes or so to get there, depending on the traffic.

  • Expect a trip time of about 55 minutes on public transport.

  • Get your travels off to a hassle-free start by staying near ORD. Whether you have an early flight from O'Hare International Airport to Bilbao Airport or just don't like being rushed, these hotels are ideal:

Arriving at Bilbao Airport (BIO)

  • The last thing you want is a long trip to your hotel if you're getting in late on an O'Hare International Airport to Bilbao Airport flight. Stay at one of these accommodation options near BIO instead:

  • Hit the road running by picking up a Bilbao Airport rental car. Grab a set of wheels from Record Go, Click and Rent or Goldcar and experience the lesser-explored corners of Bilbao and beyond.

  • To get the best deal, book your vehicle from Bilbao Airport around four weeks before travelling.

Getting from Bilbao Airport (BIO) to central Bilbao

  • Bilbao Airport to the centre of Bilbao has a drive time of about 10 minutes. It's approximately 6 kilometres away.

  • When travelling on public transport, expect a journey of around 30 minutes.

When to fly to Bilbao Airport (BIO)

  • July is the busiest month for flights from O'Hare International Airport to Bilbao Airport. For smaller crowds, head to Bilbao in January.

  • The warmest month in Bilbao is August, with temperatures ranging between 16ºC (61ºF) and 25ºC (77ºF). Lock in your flights from O'Hare International Airport to Bilbao Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between 5ºC (41ºF) and 13ºC (55ºF). Look for cheap tickets from ORD to BIO sometime then if you'd rather travel in cooler conditions.

Explore more of Spain

  • You've done Bilbao, now it's time to discover other corners of Spain. Journey about 241 kilometres south-east to Zaragoza to tick off its must-visit sights. From Puente de Piedra to Museo Pablo Gargallo and El Tubo, your itinerary will be busy.

  • If there's time to check out another corner of Spain, head for Salamanca, roughly 338 kilometres south-west of Bilbao. Plaza Mayor, S.O.U. Servicio de Orientación al Universitario. Universidad de Salamanca and Pontifical University of Salamanca are among its highlights.

Plan the rest of your trip from Chicago to Bilbao

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.