HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rennes

$797+ Cheap flights from Seattle (SEA) to Rennes (RNS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RNS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Rennes with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Rennes

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Rennes (RNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$797
(KLM)
From Seattle/Tacoma Intl to Rennes St Jacques
Search Deals

Find flight deals from Seattle to Rennes

Cheapest flights from Seattle to Rennes
Explore the most affordable flight options available from Seattle to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This KLM deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:35 pmSEA - RNS
1 stop31h 30mMultiple Airlines
Tue 11/411:05 amRNS - SEA
2 stops20h 17mMultiple Airlines
Deal found 9/10$797
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:00 amSEA - RNS
2 stops20h 05mDelta
Tue 11/411:05 amRNS - SEA
2 stops18h 40mDelta
Deal found 9/10$800
This Air France deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:50 amSEA - RNS
2 stops18h 30mAir France
Sat 11/111:20 amRNS - SEA
2 stops19h 02mAir France
Deal found 9/10$900
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/303:10 pmSEA - RNS
2 stops15h 10mMultiple Airlines
Mon 12/18:25 pmRNS - SEA
3 stops34h 51mMultiple Airlines
Deal found 9/10$1,672

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Rennes that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Seattle to Rennes that are best for you.

Fly from

Seattle

Fly to

Rennes

Route

Depart

Return

Price

SeattleRennes

SEA - RNS

SEARNS

Seattle/Tacoma Intl

Tue 10/21

6:35 pm-11:05 am

1 stop31h 30m

Rennes St Jacques

Tue 11/4

11:05 am-1:20 pm

1 stop35h 15m

$800

SeattleRennes

SEA - RNS

SEARNS

Seattle/Tacoma Intl

Tue 10/21

6:00 am-11:05 am

2 stops20h 05m

Rennes St Jacques

Tue 11/4

11:05 am-8:45 pm

2 stops18h 40m

$800

SeattleRennes

SEA - RNS

SEARNS

Seattle/Tacoma Intl

Sat 10/25

4:00 pm-6:00 pm

1 stop17h 00m

Rennes St Jacques

Sat 11/1

11:20 am-2:20 pm

1 stop35h 00m

$1,025

SeattleRennes

SEA - RNS

SEARNS

Seattle/Tacoma Intl

Sun 11/30

3:10 pm-3:20 pm

2 stops15h 10m

Rennes St Jacques

Mon 12/1

8:25 pm-10:16 pm

3 stops34h 51m

$1,672

SeattleRennes

SEA - RNS

SEARNS

Seattle/Tacoma Intl

Tue 3/10

4:00 pm-5:00 pm

1 stop17h 00m

Rennes St Jacques

Thu 3/12

5:35 pm-12:35 pm

1 stop27h 00m

$1,925

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Seattle to Rennes

Have a flexible travel schedule? Discover the best time to fly to Rennes from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Rennes

Get insights into the airlines that provide service to Rennes. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rennes. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Air France from Seattle to Rennes to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,469 reviews

Boarding

7.4

Entertainment

7.0

Comfort

7.4

Food

7.0

Crew

8.2

Overall

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.4
Good
1,469 reviews
Air France
7.4
Good
1,469 reviews

Boarding

7.4

Entertainment

7.0

Comfort

7.4

Food

7.0

Crew

8.2

Overall

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Rennes. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Rennes?

    Departing from Seattle to Rennes will take you 17h. The distance from Seattle to Rennes is about 4933 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Seattle to Rennes that include hotel bookings?

    Yes. In addition to deals on Seattle to Rennes flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Rennes?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Rennes.

  • Can I find deals for business class flights from Seattle to Rennes?

    Yes. Cheapflights offers flight deals from Seattle to Rennes by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Rennes

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Nantes flights
Portland to Brest flights
Portland to Rennes flights

Top airline flying from Seattle to Rennes

Discover the top airline that operate flights from Seattle to Rennes. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$928Average$2,059FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.