What are the cheapest airlines to fly from Riverside to Saint Thomas Island one-way?

One-way options have recently been found by users for as low as $148 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $268 and United Airlines from $313 one-way.

What are the most popular airlines that fly from Riverside to Saint Thomas Island?

Consider American Airlines, Delta or Spirit Airlines when booking your flight. These represent the most popular airlines when flying from Riverside to Saint Thomas Island.

How far in advance should I book a flight from Riverside to Saint Thomas Island?

Find a great deal and save up to 116% by booking at least 23 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Riverside to Saint Thomas Island within the next two weeks, with the cheapest ticket starting at $366.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Saint Thomas Island. Flights to Saint Thomas Island from Riverside in February are about $602 on average during February, but can be found for as low as $294.

What airport do you fly into for flights to Saint Thomas Island from Riverside?

If you book a flight to Saint Thomas Island from Riverside, you will be flying to Cyril E King, which is the city’s only airport. Saint Thomas Island Cyril E King (STT) is located 2.8 mi from the center of Saint Thomas Island. There are 0 flights from Riverside to Cyril E King per day from 4 different airlines.

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

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

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

Yes. Cheapflights offers flight deals from Riverside to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$148+ Flights from Riverside to Saint Thomas Island

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Find cheap flights from Riverside to Saint Thomas Island 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.

Cheapflights Tip: The best prices from Riverside to Saint Thomas Island Cyril E King are usually found in February or September, booked 22 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Riverside to Saint Thomas Island

Round-trip from	$276 (FlightHub)
One-way from	$148 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$703

From Riverside to Saint Thomas Island Cyril E King

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

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Highest demand for flights based on searches. 9% potential increase in price ($61 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Riverside to Saint Thomas Island

Cheapest flights from Riverside to Saint Thomas Island
Explore the most affordable flight options available from Riverside to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.

Wed 7/94:50 pmLAX - STT

2 stops16h 40mSpirit Airlines

Tue 7/154:05 pmSTT - LAX

2 stops21h 20mSpirit Airlines

Deal found 6/11

$276

Sun 7/202:09 pmLAX - STT

2 stops22h 01mMultiple Airlines

Thu 7/311:25 pmSTT - LAX

2 stops13h 25mMultiple Airlines

Deal found 6/11

$449

Tue 9/169:50 pmLAX - STT

1 stop12h 49mDelta

Fri 9/262:49 pmSTT - LAX

1 stop13h 09mDelta

Deal found 6/12

$539

Wed 7/306:20 pmLAX - STT

2 stops14h 57mUnited Airlines

Tue 8/54:45 pmSTT - LAX

1 stop11h 00mUnited Airlines

Deal found 6/12

$580

Thu 8/219:29 pmLAX - STT

1 stop15h 31mAmerican Airlines

Mon 8/255:10 pmSTT - LAX

1 stop19h 11mAmerican Airlines

Deal found 6/12

$603

Best flights from Riverside to Saint Thomas Island
Discover carefully curated flight deals from Riverside to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2025.

Wed 7/94:50 pmLAX - STT

2 stops16h 40mSpirit Airlines

Tue 7/154:05 pmSTT - LAX

2 stops21h 20mSpirit Airlines

Deal found 6/11

$276

Sun 7/202:09 pmLAX - STT

2 stops22h 01mMultiple Airlines

Thu 7/311:25 pmSTT - LAX

2 stops13h 25mMultiple Airlines

Deal found 6/11

$449

Wed 8/2010:40 pmLAX - STT

1 stop9h 26mAmerican Airlines

Tue 8/261:50 pmSTT - LAX

1 stop12h 18mAmerican Airlines

Deal found 6/12

$539

Thu 7/3112:47 amLAX - STT

2 stops11h 13mDelta

Thu 8/143:23 pmSTT - LAX

1 stop12h 13mDelta

Deal found 6/10

$569

Wed 7/306:20 pmLAX - STT

2 stops14h 57mUnited Airlines

Tue 8/54:45 pmSTT - LAX

1 stop11h 00mUnited Airlines

Deal found 6/12

$580

Last-minute flights from Riverside to Saint Thomas Island
Discover last-minute flight deals from Riverside to Saint Thomas Island. Data last updated June 13, 2025 and is based on user searches.

Thu 6/199:35 pmLAX - STT

1 stop11h 42mUnited Airlines

Tue 6/241:19 pmSTT - LAX

1 stop10h 08mUnited Airlines

Deal found 6/11

$930

Fri 6/2012:50 amLAX - STT

2 stops12h 17mDelta

Wed 6/253:00 pmSTT - LAX

1 stop12h 44mDelta

Deal found 6/11

$1,391

Sat 6/216:52 pmLAX - STT

2 stops16h 06mSpirit Airlines

Sat 6/283:03 pmSTT - LAX

2 stops18h 56mSpirit Airlines

Deal found 6/11

$421

Sat 6/2110:49 pmLAX - STT

1 stop14h 11mAmerican Airlines

Wed 6/251:44 pmSTT - LAX

1 stop11h 54mAmerican Airlines

Deal found 6/11

$803

Wed 7/94:50 pmLAX - STT

2 stops16h 40mSpirit Airlines

Tue 7/154:05 pmSTT - LAX

2 stops21h 20mSpirit Airlines

Deal found 6/11

$276

Wed 7/93:18 pmLAX - STT

1 stop18h 28mAmerican Airlines

Tue 7/155:05 pmSTT - LAX

1 stop19h 25mAmerican Airlines

Deal found 6/11

$539

Sun 7/202:09 pmLAX - STT

2 stops22h 01mMultiple Airlines

Thu 7/311:25 pmSTT - LAX

2 stops13h 25mMultiple Airlines

Deal found 6/11

$449

Wed 7/306:20 pmLAX - STT

2 stops14h 57mUnited Airlines

Tue 8/54:45 pmSTT - LAX

1 stop11h 00mUnited Airlines

Deal found 6/12

$580

Thu 7/3112:47 amLAX - STT

2 stops11h 13mDelta

Thu 8/143:23 pmSTT - LAX

1 stop12h 13mDelta

Deal found 6/10

$569

One-way flights from Riverside to Saint Thomas Island
Search for one-way flight options from Riverside to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated June 13, 2025.

Tue 6/2410:18 pmLAX - STT

2 stops32h 30mSpirit Airlines

Deal found 6/11

$148

Sun 7/2011:45 pmLAX - STT

1 stop12h 15mDelta

Deal found 6/11

$268

Sun 7/2011:01 pmLAX - STT

1 stop10h 16mUnited Airlines

Deal found 6/11

$313

Sun 7/201:22 amLAX - STT

1 stop10h 39mAmerican Airlines

Deal found 6/11

$390

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Wed 7/9

4:50 pm-12:30 pm

2 stops16h 40m

Saint Thomas Island Cyril E King

Tue 7/15

4:05 pm-10:25 am

2 stops21h 20m

$276

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Sun 7/20

2:09 pm-3:10 pm

2 stops22h 01m

Saint Thomas Island Cyril E King

Thu 7/31

1:25 pm-11:50 pm

2 stops13h 25m

$449

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Tue 9/16

9:50 pm-1:39 pm

1 stop12h 49m

Saint Thomas Island Cyril E King

Fri 9/26

2:49 pm-12:58 am

1 stop13h 09m

$539

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Wed 7/30

6:20 pm-12:17 pm

2 stops14h 57m

Saint Thomas Island Cyril E King

Tue 8/5

4:45 pm-12:45 am

1 stop11h 00m

$580

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Thu 8/21

9:29 pm-4:00 pm

1 stop15h 31m

Saint Thomas Island Cyril E King

Mon 8/25

5:10 pm-9:21 am

1 stop19h 11m

$603

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Tue 6/24

10:18 pm-9:48 am

2 stops32h 30m

$148

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Sun 7/20

11:45 pm-3:00 pm

1 stop12h 15m

$268

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Sat 10/11

11:59 pm-12:38 pm

1 stop9h 39m

$293

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Thu 12/4

10:50 pm-1:11 pm

1 stop10h 21m

$313

Los AngelesSaint Thomas Island

LAX - STT

LAXSTT

Los Angeles

Tue 9/16

12:56 am-6:00 pm

2 stops14h 04m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Riverside to Saint Thomas Island

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

How far ahead should I book a flight from Riverside to Saint Thomas Island?

The price you pay for your flight from Riverside to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Riverside to Saint Thomas Island (average of $433). Flying from Riverside to Saint Thomas Island in June is currently the most expensive (average of $650). 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 R1V to STT?

When flying from Riverside to Saint Thomas Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Riverside to Saint Thomas Island?

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

Reviews of airlines servicing Saint Thomas Island

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Riverside to Saint Thomas Island. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,951 reviews

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

8.0

Very good

7,951 reviews

Delta

8.0

Very good

7,951 reviews

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.

United Airlines

7.4

Good

8,791 reviews

Delta

8.0

Very good

7,951 reviews

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.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,951 reviews

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.

Spirit Airlines

6.3

Okay

8,054 reviews

Delta

8.0

Very good

7,951 reviews

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

What airport do you fly into for flights to Saint Thomas Island from Riverside?
If you book a flight to Saint Thomas Island from Riverside, you will be flying to Cyril E King, which is the city’s only airport. Saint Thomas Island Cyril E King (STT) is located 2.8 mi from the center of Saint Thomas Island. There are 0 flights from Riverside to Cyril E King per day from 4 different airlines.
What are the cheapest airlines to fly from Riverside to Saint Thomas Island one-way?
One-way options have recently been found by users for as low as $148 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $268 and United Airlines from $313 one-way.
Can I find deals for flights from Riverside to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on Riverside to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Riverside to Saint Thomas Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Saint Thomas Island.
Can I find deals for business class flights from Riverside to Saint Thomas Island?
Yes. Cheapflights offers flight deals from Riverside to Saint Thomas Island 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 Riverside to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Riverside to Saint Thomas Island (average of $433). Flying from Riverside to Saint Thomas Island in June is currently the most expensive (average of $650). 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

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Riverside to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$282	Average$390	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$381	Average$644	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$429	Average$782	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$457	Average$693	FlexibilityNo cancel fee	On-timeN/A

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$148+ Cheap flights from Riverside, CA to Saint Thomas Island (STT)

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Riverside to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Riverside to Saint Thomas Island Cyril E King are usually found in February or September, booked 22 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Riverside to Saint Thomas Island

Keep the following information in mind while searching for Riverside to Saint Thomas Island flight deals. Data was last updated June 13, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Riverside to Saint Thomas Island

Cheapest flights from Riverside to Saint Thomas IslandExplore the most affordable flight options available from Riverside to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.

Explore the most affordable flight options available from Riverside to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Riverside to Saint Thomas Island

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

Cheapflights Insights

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

How far ahead should I book a flight from Riverside to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Saint Thomas Island. Price data was last updated on June 9, 2025.

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

What is the cheapest time of day to fly from R1V to STT?

Find hourly flight availability from Riverside to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2025.

What is the cheapest day to fly from Riverside to Saint Thomas Island?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Saint Thomas Island. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Saint Thomas Island

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Riverside to Saint Thomas Island. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Saint Thomas Island from Riverside?

What are the cheapest airlines to fly from Riverside to Saint Thomas Island one-way?

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

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

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

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

Traveling to a place near Riverside?

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Alternative routes for Riverside to Saint Thomas Island

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Top 4 airlines flying from Riverside to Saint Thomas Island

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Cheapest flights from Riverside to Saint Thomas Island
Explore the most affordable flight options available from Riverside to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.