$570 Cheap Flights from Chicago (ORD) to Biarritz (BIQ)

View $570 flight on Wed, Aug 19, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Biarritz (BIQ-Pays Basque)

Cheap Flights from Chicago to Biarritz (ORD-BIQ)

Prices were available within the past 7 days and start at $570 for one-way flights and $963 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Tue, Mar 31 - Sun, Apr 12
ORD
Chicago
BIQ
Biarritz
$963 Roundtrip, found 5 hours ago
$963
Roundtrip
found 5 hours ago
Select Swiss International Air Lines flight, departing Tue, Mar 31 from Chicago to Biarritz, returning Sun, Apr 12, priced at $963 found 5 hours ago
Delta
Tue, Mar 31 - Tue, Apr 7
ORD
Chicago
BIQ
Biarritz
$982 Roundtrip, found 5 hours ago
$982
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Mar 31 from Chicago to Biarritz, returning Tue, Apr 7, priced at $982 found 5 hours ago
Swiss International Air Lines
Wed, May 13 - Sat, May 23
ORD
Chicago
BIQ
Biarritz
$994 Roundtrip, found 3 days ago
$994
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Wed, May 13 from Chicago to Biarritz, returning Sat, May 23, priced at $994 found 3 days ago
Swiss International Air Lines
Wed, May 13 - Sat, May 23
ORD
Chicago
BIQ
Biarritz
$1,001 Roundtrip, found 3 days ago
$1,001
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Wed, May 13 from Chicago to Biarritz, returning Sat, May 23, priced at $1,001 found 3 days ago
Delta
Tue, Mar 31 - Wed, Apr 8
ORD
Chicago
BIQ
Biarritz
$1,008 Roundtrip, found 5 hours ago
$1,008
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Mar 31 from Chicago to Biarritz, returning Wed, Apr 8, priced at $1,008 found 5 hours ago
Swiss International Air Lines
Wed, May 13 - Sat, May 23
ORD
Chicago
BIQ
Biarritz
$1,012 Roundtrip, found 3 days ago
$1,012
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Wed, May 13 from Chicago to Biarritz, returning Sat, May 23, priced at $1,012 found 3 days ago
Swiss International Air Lines
Wed, May 13 - Sat, May 23
ORD
Chicago
BIQ
Biarritz
$1,031 Roundtrip, found 3 days ago
$1,031
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Wed, May 13 from Chicago to Biarritz, returning Sat, May 23, priced at $1,031 found 3 days ago
KLM
Sun, Aug 16 - Fri, Sep 25
ORD
Chicago
BIQ
Biarritz
$1,034 Roundtrip, found 1 day ago
$1,034
Roundtrip
found 1 day ago
Select KLM flight, departing Sun, Aug 16 from Chicago to Biarritz, returning Fri, Sep 25, priced at $1,034 found 1 day ago
Air France
Sun, Aug 16 - Fri, Sep 25
ORD
Chicago
BIQ
Biarritz
$1,096 Roundtrip, found 1 day ago
$1,096
Roundtrip
found 1 day ago
Select Air France flight, departing Sun, Aug 16 from Chicago to Biarritz, returning Fri, Sep 25, priced at $1,096 found 1 day ago
Lufthansa
Fri, Aug 28 - Sat, Sep 19
ORD
Chicago
BIQ
Biarritz
$1,097 Roundtrip, found 1 day ago
$1,097
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Aug 28 from Chicago to Biarritz, returning Sat, Sep 19, priced at $1,097 found 1 day ago
Flights from Chicago (ORD) to Biarritz (BIQ)
Origin airport
O'Hare Intl.
Destination airport
Pays Basque
Airlines serving
Air France, Delta, KLM, Swiss International Air Lines
Roundtrip price
$962
Distance
4171 mi

Chicago to Biarritz Flights

The cheapest times to fly from Chicago to Biarritz

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Biarritz are during the month of March. You can find some of the cheapest flights from Chicago to Biarritz with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Biarritz

Sunday is one of the best days to book for cheap flights from Chicago to Biarritz: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Biarritz

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Biarritz in 2025. You can also book with separate airlines for your outbound and return journeys, from $570 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Biarritz flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Biarritz airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ) cost?
Snag a cheap one-way flight from $570 or cheap return flight from $963 from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ)?
Traveling in March can help you save, as it's the cheapest month for flights between ORD and BIQ. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from ORD to BIQ. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ)?
There are no daily nonstop flights from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from ORD to BIQ?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ)?
To avoid potential delays on the O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ) route, travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ) last-minute?
Last-minute bookings from ORD to BIQ are usually more expensive. To secure the best prices, start searching for flights well in advance. That being said, if you're flexible with your travel plans, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book an ORD to BIQ flight and hotel package?
You'll typically save money by booking an ORD to BIQ flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Pays Basque Airport (BIQ)?
Typically, you can cancel or modify your ORD to BIQ flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more details, head to our Customer Service portal.

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*Available to One Key members.