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Rennes

$2,049+ Cheap flights from San Francisco (SFO) 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — RNS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from San Francisco to Rennes

Cheapest flights from San Francisco to Rennes
Explore the most affordable flight options available from San Francisco to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Delta deal was found by Cheapflights users on 12/11. 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.
Fri 12/125:50 amSFO - RNS
2 stops26h 15mDelta
Mon 12/155:30 pmRNS - SFO
1 stop27h 20mDelta
Deal found 12/11$2,049
This Delta deal was found by Cheapflights users on 12/10. 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.
Thu 12/111:55 pmSFO - RNS
1 stop18h 05mDelta
Mon 12/155:30 pmRNS - SFO
1 stop27h 20mDelta
Deal found 12/10$2,345
This Delta deal was found by Cheapflights users on 12/10. 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.
Sat 12/136:00 amSFO - RNS
2 stops19h 20mDelta
Mon 12/155:30 pmRNS - SFO
1 stop27h 20mDelta
Deal found 12/10$2,853

Best time to book a flight from San Francisco to Rennes

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

What is the cheapest time of day to fly from SFO to RNS?

Find hourly flight availability from San Francisco to Rennes. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from San Francisco to Rennes, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight in the morning.

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 December 12, 2025.
Read reviews from past customers who have flown Delta from San Francisco to Rennes. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What is the cheapest airline to fly from San Francisco to Rennes round-trip?

    Our cheapest airline available from San Francisco to Rennes is Delta. Our recent data shows that you can find tickets from as low as $1,028 on this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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

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Top airline flying from San Francisco to Rennes

Discover the top airline that operate flights from San Francisco 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,028Average$1,299FlexibilityNo cancel feeOn-timeN/A

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