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Castries

$1,376+ Cheap flights from San Francisco (SFO) to Castries (SLU)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SLU
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheap flight deals from San Francisco to Castries

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Castries (SLU). 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 October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,716
(Mytrip)

Popular in

January

Cheapest in

August

Average price

$521
Provider with most accurate pricing for San Francisco-Castries George F. L. Charle flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Castries George F. L. Charle flights.
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From San Francisco to Castries George F. L. Charle
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Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Francisco to Castries

Cheapest flights from San Francisco to Castries
Explore the most affordable flight options available from San Francisco to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2025.

This Mytrip deal was found by Cheapflights users on 10/1. 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.
Thu 10/211:35 amSFO - SLU
3 stops28h 25mMultiple Airlines
Thu 10/96:20 pmSLU - SFO
3 stops25h 55mMultiple Airlines
Deal found 10/1$1,376
This Mytrip deal was found by Cheapflights users on 10/1. 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.
Wed 12/244:15 pmSFO - SLU
2 stops22h 45mMultiple Airlines
Sun 12/285:00 amSLU - SFO
3 stops40h 12mMultiple Airlines
Deal found 10/1$1,716
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Mon 12/154:15 pmSFO - SLU
2 stops22h 45mMultiple Airlines
Mon 12/299:10 amSLU - SFO
3 stops31h 10mMultiple Airlines
Deal found 9/30$1,756
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Wed 12/246:12 pmSFO - SLU
3 stops41h 03mMultiple Airlines
Sat 1/36:20 pmSLU - SFO
2 stops31h 19mMultiple Airlines
Deal found 9/30$2,385

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Castries 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 October 2, 2025.
Use the filters below to find and compare flights from San Francisco to Castries that are best for you.

Fly from

San Francisco

Fly to

Castries

Route

Depart

Return

Price

San FranciscoCastries

SFO - SLU

SFOSLU

San Francisco

Wed 12/24

4:15 pm-7:00 pm

2 stops22h 45m

Castries George F. L. Charle

Sun 12/28

5:00 am-5:12 pm

3 stops40h 12m

$1,716

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Compare providers for flights from San Francisco to Castries

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Castries in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Castries flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Castries flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Castries flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Castries flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Francisco-Castries 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 San Francisco to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries 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 Castries

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

Currently, August is the cheapest month in which you can book a flight from San Francisco to Castries (average of $525). Flying from San Francisco to Castries in July is currently the most expensive (average of $767). 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.

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

Find hourly flight availability from San Francisco to Castries. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 2, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 39% on flights from San Francisco to Castries by exploring options for tickets at noon.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. 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 Castries. Reviews last updated October 2, 2025.
See what other customers who have flown with American Airlines from San Francisco to Castries have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Food

6.4

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Food

6.4

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Castries. 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 Castries round-trip?

    According to our current data, American Airlines ($521), offers the cheapest pricing from San Francisco to Castries. American Airlines is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Castries 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 San Francisco to Castries?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to Castries (average of $525). Flying from San Francisco to Castries in July is currently the most expensive (average of $767). 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 Castries?

Book flights to Castries if you plan to visit one of these locations
Rodney Bay
Gros Islet
Marigot Bay

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from San Francisco to Castries

Discover the top airline that operate flights from San Francisco to Castries. 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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$521Average$780FlexibilityNo cancel feeOn-time71%

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