What are the cheapest airlines flying from Saint Thomas Island to San Francisco round-trip?

Frontier, at $478, was found to be the cheapest airline from Saint Thomas Island to San Francisco.Alternate airlines to your destination round-trip include American Airlines and United Airlines. You may be able to fly from Saint Thomas Island to San Francisco for 34% less than the average price by searching for these airlines.

What is the cheapest month to book a flight from Saint Thomas Island to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Saint Thomas Island to San Francisco (average of $276). Flying from Saint Thomas Island to San Francisco in June is currently the most expensive (average of $364). 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 day to fly from Saint Thomas Island to San Francisco?

Travelers seeking maximum savings on their Saint Thomas Island to San Francisco flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Saint Thomas Island to San Francisco?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 18% when planning your travel around this day of the week.

What is the cheapest month to fly from Saint Thomas Island to San Francisco?

Our data shows that February tends to be the cheapest month to fly to San Francisco from Saint Thomas Island. Users have commonly found prices around $728 for the month, but tickets can be as low as $350. Due to multiple factors, prepare for potentially higher prices in July.

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

A simple way to save on the total cost of your ticket is to fly from Saint Thomas Island to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

How can I find direct flights from Saint Thomas Island to San Francisco?

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

Can I find deals for business class flights from Saint Thomas Island to San Francisco?

Yes. Cheapflights offers flight deals from Saint Thomas Island 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.

$398+ Flights from Saint Thomas Island to San Francisco

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Saint Thomas Island to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Saint Thomas Island to San Francisco

Round-trip from	$478 (FlightHub)
One-way from	$398 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$784

From Saint Thomas Island Cyril E King to San Francisco

Search Deals

One-way flight from Saint Thomas Island Cyril E King to San Francisco

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($69 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Saint Thomas Island to San Francisco

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

vie. 7/115:14 pmSTT - SFO

2 stops20h 11mFrontier

dom. 7/138:53 pmSFO - STT

2 stops16h 36mFrontier

Deal found 6/12

$478

vie. 8/291:50 pmSTT - SFO

2 stops11h 55mAmerican Airlines

lun. 9/111:59 pmSFO - STT

1 stop9h 51mAmerican Airlines

Deal found 6/11

$609

vie. 7/111:25 pmSTT - SFO

2 stops25h 10mMultiple Airlines

dom. 7/1311:59 pmSFO - STT

3 stops30h 49mMultiple Airlines

Deal found 6/10

$673

vie. 7/114:45 pmSTT - SFO

2 stops17h 56mUnited Airlines

dom. 7/139:10 pmSFO - STT

1 stop12h 07mUnited Airlines

Deal found 6/12

$857

vie. 6/134:01 pmSTT - SFO

1 stop12h 44mDelta

vie. 6/206:28 pmSFO - STT

2 stops16h 21mDelta

Deal found 6/12

$1,059

Best flights from Saint Thomas Island to San Francisco
Discover carefully curated flight deals from Saint Thomas Island to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

vie. 7/115:14 pmSTT - SFO

2 stops20h 11mFrontier

dom. 7/138:53 pmSFO - STT

2 stops16h 36mFrontier

Deal found 6/12

$478

vie. 8/291:50 pmSTT - SFO

2 stops11h 55mAmerican Airlines

lun. 9/111:59 pmSFO - STT

1 stop9h 51mAmerican Airlines

Deal found 6/11

$609

vie. 7/111:25 pmSTT - SFO

2 stops25h 10mMultiple Airlines

dom. 7/1311:59 pmSFO - STT

3 stops30h 49mMultiple Airlines

Deal found 6/10

$673

vie. 7/114:45 pmSTT - SFO

2 stops17h 56mUnited Airlines

dom. 7/139:10 pmSFO - STT

1 stop12h 07mUnited Airlines

Deal found 6/12

$857

lun. 6/234:01 pmSTT - SFO

1 stop12h 44mDelta

mié. 7/912:50 amSFO - STT

2 stops11h 10mDelta

Deal found 6/10

$5,421

Last-minute flights from Saint Thomas Island to San Francisco
Discover last-minute flight deals from Saint Thomas Island to San Francisco. Data last updated junio 12, 2025 and is based on user searches.

vie. 6/134:01 pmSTT - SFO

1 stop12h 44mDelta

vie. 6/206:28 pmSFO - STT

2 stops16h 21mDelta

Deal found 6/12

$1,059

dom. 6/225:00 pmSTT - SFO

1 stop21h 13mAmerican Airlines

vie. 7/410:17 pmSFO - STT

1 stop9h 28mAmerican Airlines

Deal found 6/10

$2,209

dom. 6/223:00 pmSTT - SFO

2 stops11h 55mDelta

vie. 7/45:05 pmSFO - STT

2 stops16h 09mDelta

Deal found 6/10

$6,035

vie. 7/115:14 pmSTT - SFO

2 stops20h 11mFrontier

dom. 7/138:53 pmSFO - STT

2 stops16h 36mFrontier

Deal found 6/12

$478

vie. 7/111:25 pmSTT - SFO

2 stops25h 10mMultiple Airlines

dom. 7/1311:59 pmSFO - STT

3 stops30h 49mMultiple Airlines

Deal found 6/10

$673

vie. 7/113:42 pmSTT - SFO

1 stop10h 18mAmerican Airlines

dom. 7/136:45 pmSFO - STT

2 stops15h 01mAmerican Airlines

Deal found 6/11

$784

vie. 7/114:45 pmSTT - SFO

2 stops17h 56mUnited Airlines

dom. 7/139:10 pmSFO - STT

1 stop12h 07mUnited Airlines

Deal found 6/12

$857

One-way flights from Saint Thomas Island to San Francisco
Search for one-way flight options from Saint Thomas Island to San Francisco. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

vie. 7/111:25 pmSTT - SFO

2 stops25h 10mMultiple Airlines

Deal found 6/10

$398

vie. 7/113:42 pmSTT - SFO

1 stop10h 18mAmerican Airlines

Deal found 6/10

$482

vie. 7/114:45 pmSTT - SFO

2 stops21h 01mUnited Airlines

Deal found 6/10

$535

Cheapflights Fare Finder

Use the filters below to find and compare flights from Saint Thomas Island to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

5:14 pm-10:25 am

2 stops20h 11m

San Francisco

dom. 7/13

8:53 pm-4:29 pm

2 stops16h 36m

$478

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 8/29

1:50 pm-10:45 pm

2 stops11h 55m

San Francisco

lun. 9/1

11:59 pm-12:50 pm

1 stop9h 51m

$609

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

1:25 pm-11:35 am

2 stops25h 10m

San Francisco

dom. 7/13

11:59 pm-9:48 am

3 stops30h 49m

$673

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

4:45 pm-7:41 am

2 stops17h 56m

San Francisco

dom. 7/13

9:10 pm-12:17 pm

1 stop12h 07m

$857

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

lun. 6/23

4:01 pm-1:45 am

1 stop12h 44m

San Francisco

mié. 7/9

12:50 am-3:00 pm

2 stops11h 10m

$5,421

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

1:25 pm-11:35 am

2 stops25h 10m

$398

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

3:42 pm-11:00 pm

1 stop10h 18m

$482

Saint Thomas IslandSan Francisco

STT - SFO

STTSFO

Saint Thomas Island Cyril E King

vie. 7/11

4:45 pm-10:46 am

2 stops21h 01m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Saint Thomas Island to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Saint Thomas Island 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 Saint Thomas Island to San Francisco

Rainfall in San Francisco by month

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Saint Thomas Island to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier

6.0

Okay

3,295 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Saint Thomas Island to San Francisco round-trip?
Frontier, at $478, was found to be the cheapest airline from Saint Thomas Island to San Francisco.Alternate airlines to your destination round-trip include American Airlines and United Airlines. You may be able to fly from Saint Thomas Island to San Francisco for 34% less than the average price by searching for these airlines.
Can I find deals for flights from Saint Thomas Island to San Francisco that include hotel bookings?
Yes. In addition to deals on Saint Thomas Island to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Saint Thomas Island to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Thomas Island to San Francisco.
Can I find deals for business class flights from Saint Thomas Island to San Francisco?
Yes. Cheapflights offers flight deals from Saint Thomas Island 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 Saint Thomas Island to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Saint Thomas Island to San Francisco (average of $276). Flying from Saint Thomas Island to San Francisco in June is currently the most expensive (average of $364). 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

Roseville

Mountain View

South San Francisco

Livermore

Turlock

Santa Cruz

Manteca

Fairfield

Watsonville

Antioch

Hollister

Milpitas

Newark

Hayward

Alameda

Sunnyvale

Daly City

Union City

Campbell

Capitola

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Saint Thomas Island to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$577	Average$784	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$398+ Cheap flights from Saint Thomas Island (STT) to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Saint Thomas Island to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Saint Thomas Island to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Saint Thomas Island to San Francisco

Cheapest flights from Saint Thomas Island to San FranciscoExplore the most affordable flight options available from Saint Thomas Island to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from Saint Thomas Island to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Saint Thomas Island to San Francisco that are best for you.

Best time to book a flight from Saint Thomas Island to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Saint Thomas Island with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Saint Thomas Island to San Francisco

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Saint Thomas Island to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Saint Thomas Island to San Francisco round-trip?

Can I find deals for flights from Saint Thomas Island to San Francisco that include hotel bookings?

How can I find direct flights from Saint Thomas Island to San Francisco?

Can I find deals for business class flights from Saint Thomas Island to San Francisco?

What is the cheapest month to book a flight from Saint Thomas Island to San Francisco?

Traveling to a place near Saint Thomas Island?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Saint Thomas Island to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Saint Thomas Island to San Francisco

100% Free

Book with Flexibility

Travel Smart

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