SFO - SLU

$1,695 Find Cheap Flights from San Francisco to Castries

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Castries departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Castries

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Castries, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Castries, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,695
Multiple Airlines
Sat 1/24Sat 1/31
SFO - SLU • 2 stops
Cheapest one-way
Multiple Airlines
Tue 11/18
SFO - SLU • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Castries (SFO-SLU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Castries that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Castries

Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
12:00 pm - 3:15 pmSFO-SLU
23h 15m2 stops
Multiple Airlines Logo
1:55 pm - 8:10 pmSLU-SFO
34h 15m2 stops
$1,695Multiple Airlines
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Sun, Dec 21 - Sun, Dec 28
Multiple Airlines Logo
4:15 pm - 7:00 pmSFO-SLU
22h 45m2 stops
Multiple Airlines Logo
7:10 pm - 5:12 pmSLU-SFO
26h 02m3 stops
$2,364Multiple Airlines
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Sun, Dec 21 - Sun, Dec 28
Multiple Airlines Logo
8:30 am - 12:05 pmSFO-SLU
23h 35m3 stops
Multiple Airlines Logo
7:10 pm - 5:12 pmSLU-SFO
26h 02m3 stops
$2,505Multiple Airlines
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Sun, Dec 21 - Sun, Dec 28
Multiple Airlines Logo
4:15 pm - 7:00 pmSFO-SLU
22h 45m2 stops
Multiple Airlines Logo
5:00 am - 9:39 pmSLU-SFO
20h 39m2 stops
$2,853Multiple Airlines
Find Deal
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
12:00 pm - 3:15 pmSFO-SLU
23h 15m2 stops
Multiple Airlines Logo
6:20 pm - 9:22 pmSLU-SFO
31h 02m3 stops
$3,581Multiple Airlines
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Booking Insights

KAYAK's insights & trends for San Francisco to Castries flights

Get data-powered insights and trends into flights from San Francisco to Castries to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between San Francisco and Castries?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from San Francisco to Castries.

There is just one airline that flies from San Francisco to Castries direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is $521.

Find deals

Good to know

Cheapest flight$1,695
Flight from San Francisco to Castries

When to book flights from San Francisco to Castries

Are your dates flexible? Find out the best times to travel from San Francisco to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Castries

  • What is the cheapest flight from San Francisco to Castries?

    In the last 3 days, the lowest price for a flight from San Francisco to Castries was $1,695 for a round-trip ticket.

  • Do I need a passport to fly between San Francisco and Castries?

    Yes

  • Which aircraft models fly most regularly from San Francisco to Castries?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Castries?

    oneworld is the only airline alliance operating flights between San Francisco and Castries.

  • How does KAYAK find such low prices on flights from San Francisco to Castries?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Castries.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Castries?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Castries?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Castries with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and SLU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Castries?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Castries from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Castries

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Castries. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Castries? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11048 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
6.4Food
8.0Crew
Airline reviews

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

10.0 ExcellentAnonymous, Nov 2025SBA - PHX
Read more American Airlines reviews

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Everything you need to know for your flight from San Francisco to Castries

Information on your arrival and departure airports

San Francisco (SFO)
Castries (SLU)