$568 Cheap Flights from Washington (IAD) to Brest (BES)

View $568 flight on Sun, Nov 23, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Brest (BES-Brest - Brittany)

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Cheap Flights from Washington to Brest (IAD-BES)

Prices were available within the past 7 days and start at $568 for one-way flights and $793 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Dec 29 - Sun, Jan 11
IAD
Washington
BES
Brest
$793 Roundtrip, found 14 hours ago
$793
Roundtrip
found 14 hours ago
Select Delta flight, departing Mon, Dec 29 from Washington to Brest, returning Sun, Jan 11, priced at $793 found 14 hours ago
Air France
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$805 Roundtrip, found 2 days ago
$805
Roundtrip
found 2 days ago
Select Air France flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $805 found 2 days ago
KLM
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$805 Roundtrip, found 2 days ago
$805
Roundtrip
found 2 days ago
Select KLM flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $805 found 2 days ago
KLM
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$807 Roundtrip, found 2 days ago
$807
Roundtrip
found 2 days ago
Select KLM flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $807 found 2 days ago
Delta
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$810 Roundtrip, found 2 days ago
$810
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $810 found 2 days ago
Air France
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$818 Roundtrip, found 2 days ago
$818
Roundtrip
found 2 days ago
Select Air France flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $818 found 2 days ago
KLM
Thu, Jan 1 - Sun, Jan 11
IAD
Washington
BES
Brest
$818 Roundtrip, found 14 hours ago
$818
Roundtrip
found 14 hours ago
Select KLM flight, departing Thu, Jan 1 from Washington to Brest, returning Sun, Jan 11, priced at $818 found 14 hours ago
KLM
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$819 Roundtrip, found 2 days ago
$819
Roundtrip
found 2 days ago
Select KLM flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $819 found 2 days ago
Delta
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$821 Roundtrip, found 2 days ago
$821
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $821 found 2 days ago
Delta
Sun, Nov 30 - Mon, Dec 8
IAD
Washington
BES
Brest
$821 Roundtrip, found 2 days ago
$821
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Nov 30 from Washington to Brest, returning Mon, Dec 8, priced at $821 found 2 days 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
Flights from Washington (IAD) to Brest (BES)
Origin airport
Washington Dulles Intl.
Destination airport
Brest - Brittany
Airlines serving
Air France, Delta, KLM
Roundtrip price
$793
Distance
3565 mi

Washington to Brest Flights

The cheapest times to fly from Washington 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 Washington to Brest are during the month of December. You can find some of the cheapest flights from Washington to Brest with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Brest

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Brest in 2025. You can also book with separate airlines for your outbound and return journeys, from $568 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 Washington 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 Washington 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES) cost?
Get a cheap one-way flight from $568 or cheap return flight from $793 from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES)?
The cheapest month to fly from IAD to BES is December, when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAD to BES flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to BES?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on various factors, such as 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 Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES)?
Select a flight from Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES) that takes off before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**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 Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES) last-minute?
Holding off until just before your trip to book a ticket from IAD to BES generally means paying more. While you may come across some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to boost your chances of landing a bargain.
Is it cheaper to book an IAD to BES flight and hotel package?
Booking an IAD to BES flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our extensive range of hotels 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 Washington Dulles Intl. Airport (IAD) to Brest - Brittany Airport (BES)?
Generally, it's possible to cancel or reschedule your IAD 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 whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.