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Castries

$1,554+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SLU
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,695
(Mytrip)
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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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 November 18, 2025.

This Mytrip deal was found by Cheapflights users on 11/17. 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 11/278:30 amSFO - SLU
2 stops26h 45mMultiple Airlines
Mon 12/112:35 pmSLU - SFO
3 stops27h 45mMultiple Airlines
Deal found 11/17$1,554
This Mytrip deal was found by Cheapflights users on 11/18. 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 11/1912:00 pmSFO - SLU
2 stops21h 10mMultiple Airlines
Wed 11/2610:15 amSLU - SFO
2 stops28h 39mMultiple Airlines
Deal found 11/18$1,927
This Mytrip deal was found by Cheapflights users on 11/17. 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 12/214:15 pmSFO - SLU
2 stops22h 45mMultiple Airlines
Sun 12/287:10 pmSLU - SFO
3 stops26h 02mMultiple Airlines
Deal found 11/17$2,364

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 November 18, 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

Sat 1/24

12:00 pm-3:15 pm

2 stops23h 15m

Castries George F. L. Charle

Sat 1/31

1:55 pm-8:10 pm

2 stops34h 15m

$1,695

San FranciscoCastries

SFO - SLU

SFOSLU

San Francisco

Sat 2/14

8:30 am-11:25 am

3 stops22h 55m

Castries George F. L. Charle

Sat 2/21

9:10 am-1:30 pm

3 stops32h 20m

$1,730

San FranciscoCastries

SFO - SLU

SFOSLU

San Francisco

Sun 12/21

4:15 pm-7:00 pm

2 stops22h 45m

Castries George F. L. Charle

Sun 12/28

7:10 pm-5:12 pm

3 stops26h 02m

$2,364

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Castries flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, May is the cheapest month in which you can book a flight from San Francisco to Castries (average of $402). Flying from San Francisco to Castries in June is currently the most expensive (average of $860). 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 November 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 44% on flights from San Francisco to Castries by exploring options for tickets in the afternoon.

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 November 18, 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
11,045 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
American Airlines
7.2
Good
11,045 reviews
American Airlines
7.2
Good
11,045 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

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.

  • 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, May is the cheapest month in which you can book a flight from San Francisco to Castries (average of $402). Flying from San Francisco to Castries in June is currently the most expensive (average of $860). 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
Gros Islet
Rodney Bay
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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$521Average$780FlexibilityNo cancel feeOn-time71%

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