$487 Cheap Flights from Seattle (SEA) to Rennes (RNS)

View $487 flight on Fri, Sep 11, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Rennes (RNS-Saint-Jacques)

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Cheap Flights from Seattle to Rennes (SEA-RNS)

Prices were available within the past 7 days and start at $487 for one-way flights and $989 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 19 - Tue, May 26
SEA
Seattle
RNS
Rennes
$989 Roundtrip, found 2 days ago
$989
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, May 19 from Seattle to Rennes, returning Tue, May 26, priced at $989 found 2 days ago
Delta
Tue, May 19 - Mon, May 25
SEA
Seattle
RNS
Rennes
$1,002 Roundtrip, found 2 days ago
$1,002
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, May 19 from Seattle to Rennes, returning Mon, May 25, priced at $1,002 found 2 days ago
Air France
Sun, May 17 - Tue, May 26
SEA
Seattle
RNS
Rennes
$1,013 Roundtrip, found 2 days ago
$1,013
Roundtrip
found 2 days ago
Select Air France flight, departing Sun, May 17 from Seattle to Rennes, returning Tue, May 26, priced at $1,013 found 2 days ago
KLM
Wed, May 20 - Tue, May 26
SEA
Seattle
RNS
Rennes
$1,017 Roundtrip, found 2 days ago
$1,017
Roundtrip
found 2 days ago
Select KLM flight, departing Wed, May 20 from Seattle to Rennes, returning Tue, May 26, priced at $1,017 found 2 days ago
KLM
Sun, May 17 - Mon, May 25
SEA
Seattle
RNS
Rennes
$1,030 Roundtrip, found 2 days ago
$1,030
Roundtrip
found 2 days ago
Select KLM flight, departing Sun, May 17 from Seattle to Rennes, returning Mon, May 25, priced at $1,030 found 2 days ago
Delta
Sun, May 17 - Sat, May 23
SEA
Seattle
RNS
Rennes
$1,045 Roundtrip, found 2 days ago
$1,045
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, May 17 from Seattle to Rennes, returning Sat, May 23, priced at $1,045 found 2 days ago
Delta
Thu, May 14 - Wed, May 20
SEA
Seattle
RNS
Rennes
$1,049 Roundtrip, found 2 days ago
$1,049
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, May 14 from Seattle to Rennes, returning Wed, May 20, priced at $1,049 found 2 days ago
KLM
Fri, Sep 11 - Sat, Sep 19
SEA
Seattle
RNS
Rennes
$1,169 Roundtrip, found 22 hours ago
$1,169
Roundtrip
found 22 hours ago
Select KLM flight, departing Fri, Sep 11 from Seattle to Rennes, returning Sat, Sep 19, priced at $1,169 found 22 hours ago
KLM
Fri, Sep 11 - Sat, Sep 19
SEA
Seattle
RNS
Rennes
$1,170 Roundtrip, found 22 hours ago
$1,170
Roundtrip
found 22 hours ago
Select KLM flight, departing Fri, Sep 11 from Seattle to Rennes, returning Sat, Sep 19, priced at $1,170 found 22 hours ago

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Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS) cost?
Lock in a cheap one-way flight from $487 or cheap return flight from $989 from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS) 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 Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS)?
May is the most affordable month to fly from SEA to RNS. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SEA to RNS. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS)?
There aren't any daily nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from SEA to RNS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS)?
To arrive at Saint-Jacques Airport (RNS) without delays, pick a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS) last-minute?
Holding off until right before your break to book a ticket from SEA to RNS often results in higher prices. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a SEA to RNS flight and hotel package?
Opting for a SEA to RNS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our impressive range of stays 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 Seattle - Tacoma Intl. Airport (SEA) to Saint-Jacques Airport (RNS)?
You can usually cancel or reschedule your SEA to RNS 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 possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Saint-Jacques
Airlines serving
Delta, KLM
Roundtrip price
$988
Distance
4936 mi

Book with confidence

Seattle to Rennes Flights

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

 

The best time to book a flight from Seattle to Rennes

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Rennes in 2026. You can also book with separate airlines for your outbound and return journeys, from $487 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 Seattle 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 Seattle 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.

 

Seattle to Rennes Flights

*Flight schedules are subject to change.

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