$543 Cheap Flights from Chicago (ORD) to Brest (BES)

View $543 flight on Sun, Feb 8, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Brest (BES-Brest - Brittany)

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Cheap Flights from Chicago to Brest (ORD-BES)

Prices were available within the past 7 days and start at $543 for one-way flights and $779 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Tue, Nov 25 - Fri, Dec 5
ORD
Chicago
BES
Brest
$779 Roundtrip, found 1 day ago
$779
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Nov 25 from Chicago to Brest, returning Fri, Dec 5, priced at $779 found 1 day ago
KLM
Wed, Nov 26 - Fri, Dec 5
ORD
Chicago
BES
Brest
$784 Roundtrip, found 1 day ago
$784
Roundtrip
found 1 day ago
Select KLM flight, departing Wed, Nov 26 from Chicago to Brest, returning Fri, Dec 5, priced at $784 found 1 day ago
KLM
Tue, Nov 25 - Mon, Dec 1
ORD
Chicago
BES
Brest
$792 Roundtrip, found 1 day ago
$792
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Nov 25 from Chicago to Brest, returning Mon, Dec 1, priced at $792 found 1 day ago
KLM
Wed, Nov 26 - Mon, Dec 1
ORD
Chicago
BES
Brest
$797 Roundtrip, found 1 day ago
$797
Roundtrip
found 1 day ago
Select KLM flight, departing Wed, Nov 26 from Chicago to Brest, returning Mon, Dec 1, priced at $797 found 1 day ago
KLM
Tue, Nov 25 - Tue, Dec 2
ORD
Chicago
BES
Brest
$818 Roundtrip, found 1 day ago
$818
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Nov 25 from Chicago to Brest, returning Tue, Dec 2, priced at $818 found 1 day ago
KLM
Tue, Nov 25 - Tue, Dec 2
ORD
Chicago
BES
Brest
$820 Roundtrip, found 1 day ago
$820
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Nov 25 from Chicago to Brest, returning Tue, Dec 2, priced at $820 found 1 day ago
Delta
Tue, Nov 25 - Tue, Dec 2
ORD
Chicago
BES
Brest
$823 Roundtrip, found 1 day ago
$823
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 25 from Chicago to Brest, returning Tue, Dec 2, priced at $823 found 1 day ago
Delta
Tue, Nov 25 - Tue, Dec 2
ORD
Chicago
BES
Brest
$824 Roundtrip, found 1 day ago
$824
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 25 from Chicago to Brest, returning Tue, Dec 2, priced at $824 found 1 day ago
Delta
Tue, Nov 25 - Tue, Dec 2
ORD
Chicago
BES
Brest
$832 Roundtrip, found 1 day ago
$832
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 25 from Chicago to Brest, returning Tue, Dec 2, priced at $832 found 1 day ago
Air France
Tue, Nov 11 - Tue, Nov 18
ORD
Chicago
BES
Brest
$919 Roundtrip, found 1 day ago
$919
Roundtrip
found 1 day ago
Select Air France flight, departing Tue, Nov 11 from Chicago to Brest, returning Tue, Nov 18, priced at $919 found 1 day ago

Alternative airports near Brest

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Brest - Brittany BES. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $905
BES
Brest - Brittany
CheapestClosest
Average driving time to city center12 min
Flights from $905

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES) cost?
Grab a cheap one-way flight from $543 or cheap return flight from $779 from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES)?
November is the cheapest month to fly from ORD to BES. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES)?
To find the cheapest airline flying from ORD to BES, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES)?
Direct flights from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to BES?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the season and airline.*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 Brest - Brittany Airport (BES)?
Book a flight from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 22% more likely to be canceled.**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 Brest - Brittany Airport (BES) last-minute?
Holding off until just before your trip to book your flight from ORD to BES generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for the best chance of scoring a bargain.
Is it cheaper to book an ORD to BES flight and hotel package?
Opting for an ORD to BES flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Brest - Brittany Airport (BES)?
Typically, it's possible to cancel or reschedule your ORD to BES flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Brest - Brittany
Roundtrip price
$779
Distance
3882 mi

Book with confidence

Chicago to Brest Flights

The cheapest times to fly from Chicago to Brest

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 Brest are during the month of November. You can find some of the cheapest flights from Chicago to Brest with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Brest

Sunday is one of the best days to book for cheap flights from Chicago to Brest: 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 Brest

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 Brest in 2025. You can also book with separate airlines for your outbound and return journeys, from $543 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 Brest 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 Brest 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.

 

Chicago to Brest Flights

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*Available to One Key members.