$213 Cheap Flights from Brussels (BRU) to Rennes (RNS)

View $213 flight on Mon, Mar 9, 2026Opens in a new window

Popular airlines from Brussels Airport (BRU) to Rennes (RNS-Saint-Jacques)

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Cheap Flights from Brussels to Rennes (BRU-RNS)

Prices were available within the past 7 days and start at $213 for one-way flights and $326 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$326 Roundtrip, found 2 days ago
$326
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $326 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$404 Roundtrip, found 2 days ago
$404
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $404 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$433 Roundtrip, found 2 days ago
$433
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $433 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$442 Roundtrip, found 2 days ago
$442
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $442 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$461 Roundtrip, found 2 days ago
$461
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $461 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$482 Roundtrip, found 2 days ago
$482
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $482 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$492 Roundtrip, found 2 days ago
$492
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $492 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$561 Roundtrip, found 2 days ago
$561
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $561 found 2 days ago
KLM
Mon, Mar 9 - Wed, Mar 18
BRU
Brussels
RNS
Rennes
$571 Roundtrip, found 2 days ago
$571
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Mar 9 from Brussels to Rennes, returning Wed, Mar 18, priced at $571 found 2 days ago
Flights from Brussels (BRU) to Rennes (RNS)
Origin airport
Brussels - National
Destination airport
Saint-Jacques
Roundtrip price
$325
Distance
340 mi

Brussels to Rennes Flights

The cheapest times to fly from Brussels to Rennes

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

 

The best time to book a flight from Brussels to Rennes

Sunday is one of the best days to book for cheap flights from Brussels to Rennes: 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 Brussels to Rennes

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 Brussels to Rennes in 2025. You can also book with separate airlines for your outbound and return journeys, from $213 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 Brussels to Rennes 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 Brussels to Rennes 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 Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS) cost?
Lock in a cheap one-way flight from $213 or cheap return flight from $326 from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS) 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 Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS)?
March is the least expensive month to fly from BRU to RNS. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS)?
To find the cheapest airline that'll fly you from BRU to RNS, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS)?
Nonstop flights from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BRU to RNS?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS)?
To avoid possible delays on the Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS) route, aim to fly before 3 PM. Flights after this time 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 Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS) last-minute?
Booking your flight from BRU to RNS shortly before your journey is usually more expensive. However, if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a BRU to RNS flight and hotel package?
You can save money by securing a BRU to RNS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your ideal accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Brussels - National Airport (BRU) to Saint-Jacques Airport (RNS)?
In most cases, you can modify or cancel your BRU to RNS flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want more information, visit our Customer Service portal.

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*Available to One Key members.