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 $469. Other airlines that can offer you cheap pricing are American Airlines, from $529, and United Airlines, from $1,359. Delta is priced at 25% 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 41 days before your planned departure. Booking around this time can save you about 746% 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 $628 per person but you can even find prices for as low as $343. The most expensive prices can be found in the month of December. Opting for a September flight can save you 17% on your journey compared to booking in December

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.

$288+ Flights from Knoxville to Saint Thomas Island

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Cheap flight deals from Knoxville to Saint Thomas Island

Round-trip from	$288 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$689

From Knoxville McGhee Tyson to Saint Thomas Island Cyril E King

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($42 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).

Search Deals

Average for round-trip flights in June 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 junio 12, 2025.

lun. 8/46:00 amTYS - STT

1 stop6h 30mMultiple Airlines

vie. 8/812:26 pmSTT - TYS

1 stop22h 36mMultiple Airlines

Deal found 6/10

$288

mié. 8/138:35 amTYS - STT

1 stop5h 35mDelta

sáb. 8/231:51 pmSTT - TYS

1 stop9h 57mDelta

Deal found 6/12

$469

sáb. 9/277:45 pmTYS - STT

2 stops17h 03mAmerican Airlines

lun. 10/65:15 pmSTT - TYS

1 stop5h 57mAmerican Airlines

Deal found 6/12

$479

vie. 6/205:45 amTYS - STT

1 stop6h 32mUnited Airlines

mié. 6/254:45 pmSTT - TYS

1 stop7h 14mUnited Airlines

Deal found 6/10

$1,359

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 junio 12, 2025.

lun. 8/46:00 amTYS - STT

1 stop6h 30mMultiple Airlines

vie. 8/812:26 pmSTT - TYS

1 stop22h 36mMultiple Airlines

Deal found 6/10

$288

mié. 8/138:35 amTYS - STT

1 stop5h 35mDelta

sáb. 8/231:51 pmSTT - TYS

1 stop9h 57mDelta

Deal found 6/12

$469

vie. 8/157:35 pmTYS - STT

2 stops16h 18mAmerican Airlines

sáb. 8/231:50 pmSTT - TYS

2 stops10h 29mAmerican Airlines

Deal found 6/12

$529

vie. 6/205:45 amTYS - STT

1 stop6h 32mUnited Airlines

mié. 6/254:45 pmSTT - TYS

1 stop7h 14mUnited Airlines

Deal found 6/10

$1,359

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

vie. 6/207:53 pmTYS - STT

2 stops15h 57mAmerican Airlines

mié. 6/255:00 pmSTT - TYS

1 stop7h 14mAmerican Airlines

Deal found 6/10

$1,344

vie. 6/205:45 amTYS - STT

1 stop6h 32mUnited Airlines

mié. 6/254:45 pmSTT - TYS

1 stop7h 14mUnited Airlines

Deal found 6/10

$1,359

mar. 7/154:55 pmTYS - STT

1 stop16h 53mMultiple Airlines

dom. 7/201:25 pmSTT - TYS

1 stop20h 46mMultiple Airlines

Deal found 6/9

$322

sáb. 7/268:22 pmTYS - STT

2 stops16h 24mAmerican Airlines

dom. 8/105:10 pmSTT - TYS

2 stops18h 12mAmerican Airlines

Deal found 6/12

$678

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

lun. 8/4

6:00 am-12:30 pm

1 stop6h 30m

Saint Thomas Island Cyril E King

vie. 8/8

12:26 pm-11:02 am

1 stop22h 36m

$288

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

mié. 8/13

8:35 am-2:10 pm

1 stop5h 35m

Saint Thomas Island Cyril E King

sáb. 8/23

1:51 pm-11:48 pm

1 stop9h 57m

$469

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

vie. 8/15

7:35 pm-11:53 am

2 stops16h 18m

Saint Thomas Island Cyril E King

sáb. 8/23

1:50 pm-12:19 am

2 stops10h 29m

$529

KnoxvilleSaint Thomas Island

TYS - STT

TYSSTT

Knoxville McGhee Tyson

vie. 6/20

5:45 am-12:17 pm

1 stop6h 32m

Saint Thomas Island Cyril E King

mié. 6/25

4:45 pm-11:59 pm

1 stop7h 14m

$1,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 40 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 $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.

Reviews of airlines servicing Saint Thomas Island

Delta

8.0

Very good

7,946 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

7,946 reviews

Delta

8.0

Very good

7,946 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

8,790 reviews

Delta

8.0

Very good

7,946 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

7,946 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 $469. Other airlines that can offer you cheap pricing are American Airlines, from $529, and United Airlines, from $1,359. Delta is priced at 25% 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 $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 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$562	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$431	Average$651	FlexibilityNo cancel fee	On-time71%

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$288+ Cheap flights from Knoxville (TYS) to Saint Thomas Island (STT)

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 8/4. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Knoxville to Saint Thomas Island

Round-trip 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 junio 12, 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 junio 12, 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 June 9, 2025.

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

Reviews of airlines servicing Saint Thomas Island

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 Knoxville?

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Alternative routes for Knoxville to Saint Thomas Island

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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 junio 12, 2025.