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

Cheapflights users have booked flights from Knoxville to Saint Thomas Island round-trip from $479. Other airlines that can offer you cheap pricing are American Airlines, from $504, and United Airlines, from $612. Delta is priced at 24% lower than the current average price of a flight leaving 3 months from now.

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

Travelers seeking maximum savings on their Knoxville to Saint Thomas Island flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings 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 Knoxville to Saint Thomas Island?

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

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

Friday flights are found to be more expensive to fly from Knoxville to Saint Thomas Island. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Saint Thomas Island.

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

To save on the cost of your flight from Knoxville to Saint Thomas Island, book at least 42 days before your planned departure. Booking around this time can save you about 414% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $602 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $775.

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

September is one of the best times of the year to fly to Saint Thomas Island from Knoxville. Prices for September average $638 per person but you can even find prices for as low as $356. The most expensive prices can be found in the month of May. Opting for a September flight can save you 17% on your journey compared to booking in May

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

Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Knoxville to Saint Thomas Island by exploring options for tickets at noon.

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

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

Yes. Cheapflights offers flight deals from Knoxville 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.

$268+ Flights from Knoxville to Saint Thomas Island

Q: How much does it cost to fly round-trip from Knoxville to Saint Thomas Island?

Airfare is below average for this route at the moment. Knoxville to Saint Thomas Island flights typically cost between $557 and $805 in September. The cheapest round-trip price found within the last 3 days was $373 on Multiple Airlines (Sep 21-Sep 26).

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Cheap flight deals from Knoxville to Saint Thomas Island

Round-trip from	$373 (Mytrip)
One-way from	$268 (American Airlines)
Popular in	May
Cheapest in	September
Average price	$539

From Knoxville McGhee Tyson to Saint Thomas Island Cyril E King

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One-way flight from Knoxville McGhee Tyson to Saint Thomas Island Cyril E King

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Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Knoxville to Saint Thomas Island

Cheapest flights from Knoxville to Saint Thomas Island
Explore the most affordable flight options available from Knoxville to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Sun 9/217:35 pmTYS - STT

2 stops19h 42mMultiple Airlines

Fri 9/264:24 pmSTT - TYS

2 stops17h 54mMultiple Airlines

Deal found 7/28

$373

Sat 9/275:45 amTYS - STT

1 stop7h 48mDelta

Mon 10/62:49 pmSTT - TYS

1 stop7h 07mDelta

Deal found 7/29

$479

Wed 9/246:10 amTYS - STT

1 stop6h 40mAmerican Airlines

Mon 9/291:40 pmSTT - TYS

1 stop10h 10mAmerican Airlines

Deal found 7/28

$527

Mon 8/115:45 amTYS - STT

1 stop6h 32mUnited Airlines

Fri 8/151:19 pmSTT - TYS

1 stop10h 08mUnited Airlines

Deal found 7/27

$622

Best flights from Knoxville to Saint Thomas Island
Discover carefully curated flight deals from Knoxville to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sun 9/217:35 pmTYS - STT

2 stops19h 42mMultiple Airlines

Fri 9/264:24 pmSTT - TYS

2 stops17h 54mMultiple Airlines

Deal found 7/28

$373

Sat 9/275:45 amTYS - STT

1 stop7h 48mDelta

Mon 10/62:49 pmSTT - TYS

1 stop7h 07mDelta

Deal found 7/29

$479

Wed 1/218:24 pmTYS - STT

1 stop14h 26mAmerican Airlines

Sat 1/316:35 pmSTT - TYS

2 stops16h 55mAmerican Airlines

Deal found 7/27

$504

Wed 1/215:50 amTYS - STT

1 stop7h 06mUnited Airlines

Sat 1/313:35 pmSTT - TYS

1 stop8h 44mUnited Airlines

Deal found 7/27

$612

Last-minute flights from Knoxville to Saint Thomas Island
Discover last-minute flight deals from Knoxville to Saint Thomas Island. Data last updated July 29, 2025 and is based on user searches.

Fri 8/87:00 amTYS - STT

1 stop5h 50mAmerican Airlines

Fri 8/155:10 pmSTT - TYS

2 stops17h 20mAmerican Airlines

Deal found 7/27

$691

Fri 8/87:00 amTYS - STT

1 stop8h 43mUnited Airlines

Fri 8/151:19 pmSTT - TYS

1 stop10h 08mUnited Airlines

Deal found 7/27

$816

Fri 8/86:55 amTYS - STT

3 stops26h 53mMultiple Airlines

Fri 8/1512:18 pmSTT - TYS

2 stops25h 13mMultiple Airlines

Deal found 7/27

$957

Mon 8/115:45 amTYS - STT

1 stop6h 32mUnited Airlines

Fri 8/151:19 pmSTT - TYS

1 stop10h 08mUnited Airlines

Deal found 7/27

$622

Sat 8/235:45 amTYS - STT

1 stop9h 25mDelta

Sat 8/303:23 pmSTT - TYS

1 stop8h 25mDelta

Deal found 7/27

$509

Sat 8/238:25 pmTYS - STT

1 stop14h 41mAmerican Airlines

Sat 8/305:10 pmSTT - TYS

2 stops19h 07mAmerican Airlines

Deal found 7/27

$570

Tue 8/269:00 amTYS - STT

3 stops28h 48mMultiple Airlines

Tue 9/22:43 pmSTT - TYS

3 stops24h 58mMultiple Airlines

Deal found 7/29

$451

One-way flights from Knoxville to Saint Thomas Island
Search for one-way flight options from Knoxville to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 10/147:43 pmTYS - STT

1 stop16h 17mAmerican Airlines

Deal found 7/29

$268

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

Sun 9/21

7:35 pm-3:17 pm

2 stops19h 42m

Saint Thomas Island Cyril E King

Fri 9/26

4:24 pm-10:18 am

2 stops17h 54m

$373

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

Sat 9/27

5:45 am-1:33 pm

1 stop7h 48m

Saint Thomas Island Cyril E King

Mon 10/6

2:49 pm-9:56 pm

1 stop7h 07m

$479

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

Wed 1/21

8:24 pm-11:50 am

1 stop14h 26m

Saint Thomas Island Cyril E King

Sat 1/31

6:35 pm-10:30 am

2 stops16h 55m

$504

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

Wed 1/21

5:50 am-1:56 pm

1 stop7h 06m

Saint Thomas Island Cyril E King

Sat 1/31

3:35 pm-11:19 pm

1 stop8h 44m

$612

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

Tue 10/14

7:43 pm-12:00 pm

1 stop16h 17m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

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

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

The best time to book flights from Knoxville to Saint Thomas Island is 41 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 Knoxville to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Knoxville to Saint Thomas Island (average of $433). Flying from Knoxville to Saint Thomas Island in June is currently the most expensive (average of $649). 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.

How much does it cost to fly round-trip from Knoxville to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Knoxville to Saint Thomas Island 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

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Knoxville to Saint Thomas Island round-trip?
Cheapflights users have booked flights from Knoxville to Saint Thomas Island round-trip from $479. Other airlines that can offer you cheap pricing are American Airlines, from $504, and United Airlines, from $612. Delta is priced at 24% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Knoxville to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on Knoxville to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville 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 Knoxville to Saint Thomas Island.
Can I find deals for business class flights from Knoxville to Saint Thomas Island?
Yes. Cheapflights offers flight deals from Knoxville 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 Knoxville to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Knoxville to Saint Thomas Island (average of $433). Flying from Knoxville to Saint Thomas Island in June is currently the most expensive (average of $649). 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 3 airlines flying from Knoxville to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$383	Average$669	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$400	Average$602	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$431	Average$662	FlexibilityNo cancel fee	On-time71%

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$268+ Cheap flights from Knoxville (TYS) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Saint Thomas Island with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Knoxville to Saint Thomas Island

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Knoxville to Saint Thomas Island

Cheapest flights from Knoxville to Saint Thomas IslandExplore the most affordable flight options available from Knoxville to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Knoxville to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Saint Thomas Island. Price data was last updated on July 25, 2025.

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

How much does it cost to fly round-trip from Knoxville to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Knoxville to Saint Thomas Island 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 Knoxville 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 Knoxville to Saint Thomas Island round-trip?

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

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

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

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

Traveling to a place near Saint Thomas Island?

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Alternative routes for Knoxville to Saint Thomas Island

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

Top 3 airlines flying from Knoxville to Saint Thomas Island

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Cheapest flights from Knoxville to Saint Thomas Island
Explore the most affordable flight options available from Knoxville to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.