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

Our cheapest airline available from San Diego to Saint Thomas Island is Spirit Airlines. Our recent data shows that you can find tickets from as low as $332 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $539 and $630 round-trip. These flights start at 49% lower than the current average price 3 months from now.

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

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $172. Delta flights start at $268 while deals on United Airlines start at $506 one-way.

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

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

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

Before booking your flight from San Diego to Saint Thomas Island check out the most popular airlines for this route: American Airlines, Delta or Spirit Airlines.

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

Departing on a Monday is a good option for securing a great price. You can expect to save up to 122% when planning your travel around this day of the week.

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

To save up to 230% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Diego to Saint Thomas Island from $374 1-2 weeks out and tickets from $827 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of September. Prices to Saint Thomas Island from San Diego average $661. You can even find prices in September for less than $661, as users have found deals to Saint Thomas Island from as low as $274. The month of December appears to be one of the more expensive times to travel to Saint Thomas Island from San Diego. Flying in the targeted month can save you up to 24%.

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

Yes. In addition to deals on San Diego to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Diego 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 San Diego to Saint Thomas Island.

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

Yes. Cheapflights offers flight deals from San Diego 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.

$172+ Flights from San Diego to Saint Thomas Island

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Diego to Saint Thomas Island Cyril E King are usually found in September or January, booked 31 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from San Diego to Saint Thomas Island

Round-trip from	$332 (FlightHub)
One-way from	$172 (FlightHub)
Popular in	December
Cheapest in	September
Average price	$722

From San Diego to Saint Thomas Island Cyril E King

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

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High demand for flights, 3% potential price rise

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Cheapest flight prices on average. 2% potential price decrease ($15 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 San Diego to Saint Thomas Island

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

Tue 7/87:31 pmSAN - STT

2 stops16h 39mSpirit Airlines

Tue 7/151:25 pmSTT - SAN

2 stops23h 30mSpirit Airlines

Deal found 6/11

$332

Wed 12/319:50 pmSAN - STT

1 stop13h 00mDelta

Wed 1/71:55 pmSTT - SAN

1 stop13h 16mDelta

Deal found 6/10

$539

Wed 8/274:20 pmSAN - STT

2 stops15h 46mAmerican Airlines

Tue 9/21:50 pmSTT - SAN

2 stops22h 03mAmerican Airlines

Deal found 6/10

$599

Sun 7/206:47 pmSAN - STT

2 stops14h 30mUnited Airlines

Thu 7/311:19 pmSTT - SAN

1 stop9h 42mUnited Airlines

Deal found 6/11

$630

Thu 7/38:08 amSAN - STT

3 stops22h 40mMultiple Airlines

Sun 7/67:00 amSTT - SAN

3 stops27h 13mMultiple Airlines

Deal found 6/11

$827

Best flights from San Diego to Saint Thomas Island
Discover carefully curated flight deals from San Diego 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 12, 2025.

Tue 7/87:31 pmSAN - STT

2 stops16h 39mSpirit Airlines

Tue 7/151:25 pmSTT - SAN

2 stops23h 30mSpirit Airlines

Deal found 6/11

$332

Tue 9/22:57 pmSAN - STT

2 stops18h 51mAmerican Airlines

Tue 9/91:40 pmSTT - SAN

1 stop11h 18mAmerican Airlines

Deal found 6/11

$539

Sun 7/206:47 pmSAN - STT

2 stops14h 30mUnited Airlines

Thu 7/311:19 pmSTT - SAN

1 stop9h 42mUnited Airlines

Deal found 6/11

$630

Thu 7/38:08 amSAN - STT

3 stops22h 40mMultiple Airlines

Sun 7/67:00 amSTT - SAN

3 stops27h 13mMultiple Airlines

Deal found 6/11

$827

Thu 6/199:40 pmSAN - STT

1 stop13h 09mDelta

Wed 6/251:24 pmSTT - SAN

1 stop9h 36mDelta

Deal found 6/10

$1,113

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

Tue 6/179:30 pmSAN - STT

1 stop11h 47mUnited Airlines

Wed 6/251:19 pmSTT - SAN

2 stops13h 27mUnited Airlines

Deal found 6/10

$789

Thu 6/199:13 pmSAN - STT

2 stops12h 36mAmerican Airlines

Tue 6/243:42 pmSTT - SAN

1 stop10h 15mAmerican Airlines

Deal found 6/10

$1,013

Thu 6/199:40 pmSAN - STT

1 stop13h 09mDelta

Wed 6/251:24 pmSTT - SAN

1 stop9h 36mDelta

Deal found 6/10

$1,113

Sat 6/212:30 pmSAN - STT

2 stops18h 59mSpirit Airlines

Sat 6/2810:47 amSTT - SAN

2 stops23h 26mSpirit Airlines

Deal found 6/10

$450

Thu 7/38:08 amSAN - STT

3 stops22h 40mMultiple Airlines

Sun 7/67:00 amSTT - SAN

3 stops27h 13mMultiple Airlines

Deal found 6/11

$827

Tue 7/87:31 pmSAN - STT

2 stops16h 39mSpirit Airlines

Tue 7/151:25 pmSTT - SAN

2 stops23h 30mSpirit Airlines

Deal found 6/11

$332

Tue 7/810:22 pmSAN - STT

1 stop14h 33mAmerican Airlines

Tue 7/151:53 pmSTT - SAN

1 stop10h 54mAmerican Airlines

Deal found 6/11

$654

Sun 7/206:47 pmSAN - STT

2 stops14h 30mUnited Airlines

Thu 7/311:19 pmSTT - SAN

1 stop9h 42mUnited Airlines

Deal found 6/11

$630

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

Wed 7/233:57 pmSAN - STT

2 stops14h 51mSpirit Airlines

Deal found 6/11

$172

Wed 7/239:55 pmSAN - STT

1 stop11h 22mDelta

Deal found 6/12

$268

Thu 8/285:56 pmSAN - STT

3 stops40h 05mUnited Airlines

Deal found 6/12

$506

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Tue 7/8

7:31 pm-3:10 pm

2 stops16h 39m

Saint Thomas Island Cyril E King

Tue 7/15

1:25 pm-9:55 am

2 stops23h 30m

$332

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Tue 9/2

2:57 pm-12:48 pm

2 stops18h 51m

Saint Thomas Island Cyril E King

Tue 9/9

1:40 pm-9:58 pm

1 stop11h 18m

$539

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Sun 7/20

9:50 pm-12:17 pm

1 stop11h 27m

Saint Thomas Island Cyril E King

Thu 7/31

1:19 pm-8:01 pm

1 stop9h 42m

$630

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Thu 7/3

8:08 am-9:48 am

3 stops22h 40m

Saint Thomas Island Cyril E King

Sun 7/6

7:00 am-7:13 am

3 stops27h 13m

$827

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Thu 6/19

9:40 pm-1:49 pm

1 stop13h 09m

Saint Thomas Island Cyril E King

Wed 6/25

1:24 pm-8:00 pm

1 stop9h 36m

$1,113

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Wed 7/23

3:57 pm-9:48 am

2 stops14h 51m

$172

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Wed 7/23

9:55 pm-12:17 pm

1 stop11h 22m

$268

San DiegoSaint Thomas Island

SAN - STT

SANSTT

San Diego

Thu 8/28

5:56 pm-1:01 pm

3 stops40h 05m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

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

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

The best time to book flights from San Diego to Saint Thomas Island is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from San Diego to Saint Thomas Island (average of $433). Flying from San Diego 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 SAN to STT?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 49% on flights from San Diego to Saint Thomas Island by exploring options for tickets at noon.

Reviews of airlines servicing Saint Thomas Island

Read through reviews of airlines operating flights from San Diego to Saint Thomas Island, such as Delta, United Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 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

7,950 reviews

Delta

8.0

Very good

7,950 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

8,790 reviews

Delta

8.0

Very good

7,950 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

7,950 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

8,052 reviews

Delta

8.0

Very good

7,950 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 are the cheapest airlines flying from San Diego to Saint Thomas Island round-trip?
Our cheapest airline available from San Diego to Saint Thomas Island is Spirit Airlines. Our recent data shows that you can find tickets from as low as $332 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $539 and $630 round-trip. These flights start at 49% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Diego to Saint Thomas Island one-way?
To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $172. Delta flights start at $268 while deals on United Airlines start at $506 one-way.
Can I find deals for flights from San Diego to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on San Diego to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego 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 San Diego to Saint Thomas Island.
Can I find deals for business class flights from San Diego to Saint Thomas Island?
Yes. Cheapflights offers flight deals from San Diego 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 San Diego to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from San Diego to Saint Thomas Island (average of $433). Flying from San Diego 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

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Alternative routes for San Diego to Saint Thomas Island

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Top 4 airlines flying from San Diego to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$224	Average$370	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$437	Average$781	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$461	Average$691	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$476	Average$783	FlexibilityNo cancel fee	On-timeN/A

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$172+ Cheap flights from San Diego (SAN) 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego 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 San Diego to Saint Thomas Island Cyril E King are usually found in September or January, booked 31 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from San Diego to Saint Thomas Island

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Diego to Saint Thomas Island

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

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

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

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

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

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

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

Find hourly flight availability from San Diego 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 12, 2025.

Reviews of airlines servicing Saint Thomas Island

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 are the cheapest airlines flying from San Diego to Saint Thomas Island round-trip?

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

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

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

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

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

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Alternative routes for San Diego to Saint Thomas Island

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Top 4 airlines flying from San Diego to Saint Thomas Island

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