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$826+ Cheap flights from Rennes (RNS) to San Francisco (SFO)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
RNS — SFO
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Rennes to San Francisco

Cheapest flights from Rennes to San Francisco
Explore the most affordable flight options available from Rennes to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This KLM deal was found by Cheapflights users on 1/25. 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.
Thu 4/302:25 pm
RNS
-
SFO
1 stop30h 20m
KLM
Fri 5/88:10 pm
SFO
-
RNS
1 stop29h 10m
KLM
Deal found 1/25$826
This KLM deal was found by Cheapflights users on 1/26. 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.
Wed 2/112:25 pm
RNS
-
SFO
1 stop30h 25m
KLM
Sun 2/153:40 pm
SFO
-
RNS
1 stop33h 40m
KLM
Deal found 1/26$827
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 4/302:25 pm
RNS
-
SFO
2 stops19h 58m
Delta
Fri 5/88:55 am
SFO
-
RNS
2 stops19h 00m
Delta
Deal found 1/25$829
This Delta deal was found by Cheapflights users on 1/26. 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.
Wed 2/1111:05 am
RNS
-
SFO
2 stops20h 49m
Delta
Sun 2/155:45 am
SFO
-
RNS
2 stops19h 35m
Delta
Deal found 1/26$836
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 2/1211:05 am
RNS
-
SFO
2 stops18h 22m
Delta
Mon 2/167:10 am
SFO
-
RNS
2 stops18h 10m
Delta
Deal found 1/27$838
This Air France deal was found by Cheapflights users on 1/27. 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.
Thu 2/1211:05 am
RNS
-
SFO
2 stops21h 20m
Multiple Airlines
Mon 2/163:40 pm
SFO
-
RNS
1 stop33h 40m
Multiple Airlines
Deal found 1/27$840
This Air France deal was found by Cheapflights users on 1/27. 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.
Thu 4/302:25 pm
RNS
-
SFO
1 stop30h 20m
Air France
Fri 5/83:05 pm
SFO
-
RNS
1 stop34h 15m
Air France
Deal found 1/27$842

Find flight deals from Rennes to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Rennes (RNS) to San Francisco (SFO). 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 January 27, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$826
(KLM)
Provider with most accurate pricing for Rennes St Jacques-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rennes St Jacques-San Francisco flights.
Search Deals
From Rennes St Jacques to San Francisco
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Rennes to San Francisco 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 January 27, 2026.
Use the filters below to find and compare flights from Rennes to San Francisco that are best for you.

Fly from

Rennes

Fly to

San Francisco

Route

Depart

Return

Price

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 4/30

2:25 pm-11:45 am

1 stop30h 20m

San Francisco

Fri 5/8

8:10 pm-10:20 am

1 stop29h 10m

$826

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Wed 2/11

2:25 pm-11:50 am

1 stop30h 25m

San Francisco

Sun 2/15

3:40 pm-10:20 am

1 stop33h 40m

$827

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 4/30

2:25 pm-1:23 am

2 stops19h 58m

San Francisco

Fri 5/8

8:55 am-12:55 pm

2 stops19h 00m

$829

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Wed 2/11

11:05 am-10:54 pm

2 stops20h 49m

San Francisco

Sun 2/15

5:45 am-10:20 am

2 stops19h 35m

$836

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 2/12

11:05 am-1:25 pm

1 stop35h 20m

San Francisco

Mon 2/16

3:40 pm-10:20 am

1 stop33h 40m

$838

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 2/12

11:05 am-8:27 pm

2 stops18h 22m

San Francisco

Mon 2/16

7:10 am-10:20 am

2 stops18h 10m

$838

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 2/12

11:05 am-11:25 pm

2 stops21h 20m

San Francisco

Mon 2/16

3:40 pm-10:20 am

1 stop33h 40m

$840

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Thu 4/30

2:25 pm-11:45 am

1 stop30h 20m

San Francisco

Fri 5/8

3:05 pm-10:20 am

1 stop34h 15m

$842

RennesSan Francisco

RNS - SFO

RNSSFO

Rennes St Jacques

Mon 4/27

2:25 pm-1:23 am

2 stops19h 58m

$1,711

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

  • Most accurate provider: When it comes to deals on Rennes-San Francisco flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Rennes-San Francisco flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Rennes-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rennes-San Francisco flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rennes-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rennes to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Rennes 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.

Cheapflights Insights

Everything you need to know about your flight from Rennes to San Francisco

What is the cheapest month to book a flight from Rennes to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Rennes to San Francisco (average of $548). Flying from Rennes to San Francisco in July is currently the most expensive (average of $1,058). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Rennes to San Francisco. 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 Rennes to San Francisco?

    For as low as $829, KLM can have you in San Francisco from Rennes in 19h 58m. There are 5480 mi between Rennes and San Francisco. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Rennes to San Francisco?

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

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

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

  • What is the cheapest month to book a flight from Rennes to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Rennes to San Francisco (average of $548). Flying from Rennes to San Francisco in July is currently the most expensive (average of $1,058). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

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