HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$172+ Cheap flights from Knoxville (TYS) to Puerto Rico

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Puerto Rico 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 Knoxville to Puerto Rico

Cheapest flights from Knoxville to Puerto Rico
Explore the most affordable flight options available from Knoxville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:01 pmTYS - SJU
2 stops43h 57mMultiple Airlines
Thu 1/84:54 pmSJU - TYS
1 stop7h 11mMultiple Airlines
Deal found 12/21$314
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:46 pmTYS - SJU
2 stops31h 38mMultiple Airlines
Thu 1/84:54 pmSJU - TYS
1 stop7h 11mMultiple Airlines
Deal found 12/21$332
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:20 pmTYS - SJU
1 stop14h 09mMultiple Airlines
Thu 1/84:54 pmSJU - TYS
1 stop7h 11mMultiple Airlines
Deal found 12/21$405
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:33 pmTYS - SJU
1 stop26h 32mMultiple Airlines
Tue 1/64:55 pmSJU - TYS
2 stops40h 44mMultiple Airlines
Deal found 12/21$482
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:02 pmTYS - SJU
1 stop11h 56mMultiple Airlines
Wed 1/78:08 pmSJU - TYS
1 stop13h 31mMultiple Airlines
Deal found 12/21$502
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:02 pmTYS - SJU
1 stop11h 56mMultiple Airlines
Sun 1/43:55 amSJU - TYS
1 stop7h 20mMultiple Airlines
Deal found 12/21$503
This Kiwi.com deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:51 amTYS - SJU
1 stop12h 07mMultiple Airlines
Wed 12/311:59 amSJU - TYS
2 stops33h 16mMultiple Airlines
Deal found 12/20$521
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:08 amTYS - SJU
1 stop9h 57mMultiple Airlines
Wed 1/78:08 pmSJU - TYS
1 stop13h 31mMultiple Airlines
Deal found 12/21$543
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:08 amTYS - SJU
1 stop9h 57mMultiple Airlines
Sun 1/43:55 amSJU - TYS
1 stop7h 20mMultiple Airlines
Deal found 12/21$544

Find flight deals from Knoxville to Puerto Rico

Keep the following information in mind while searching for Knoxville to Puerto Rico flight deals. Data was last updated December 23, 2025.

Round-trip from

$255
(Kiwi.com)

One-way from

$172
(eDestinos)

Popular in

December

Cheapest in

February

Average price

$702
From Knoxville McGhee Tyson to Puerto Rico
Search Deals
One-way flight from Knoxville McGhee Tyson to Puerto Rico
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Puerto Rico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Knoxville to Puerto Rico that are best for you.

Fly from

Knoxville

Fly to

Puerto Rico

Route

Depart

Return

Price

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 1/8

1:39 pm-12:13 am

1 stop9h 34m

San Juan Luis Munoz Marin Intl

Sun 1/11

2:29 am-5:28 pm

2 stops15h 59m

$255

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 1/6

7:22 pm-11:58 am

1 stop15h 36m

San Juan Luis Munoz Marin Intl

Sat 1/10

2:57 pm-5:53 pm

1 stop27h 56m

$301

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 1/31

11:59 am-11:45 am

2 stops22h 46m

San Juan Luis Munoz Marin Intl

Wed 2/4

4:40 pm-8:39 am

1 stop16h 59m

$302

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 1/25

9:29 am-3:35 pm

1 stop29h 06m

San Juan Luis Munoz Marin Intl

Sat 1/31

11:49 am-8:39 am

2 stops21h 50m

$307

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Wed 2/25

5:00 am-3:46 pm

2 stops9h 46m

San Juan Luis Munoz Marin Intl

Sat 3/7

8:15 am-6:32 pm

1 stop11h 17m

$390

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 2/27

5:57 pm-11:41 am

1 stop16h 44m

San Juan Luis Munoz Marin Intl

Fri 3/6

8:15 am-6:32 pm

1 stop11h 17m

$390

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 1/3

2:23 pm-1:20 am

1 stop9h 57m

$172

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 4/14

12:50 pm-6:10 pm

1 stop5h 20m

$192

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 1/4

6:30 am-1:24 am

2 stops41h 54m

$197

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 6/6

1:35 pm-11:00 pm

1 stop9h 25m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Best time to book a flight from Knoxville to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from Knoxville to Puerto Rico?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Puerto Rico (average of $108). Flying from Knoxville to Puerto Rico in May is currently the most expensive (average of $346). 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 TYS to PR?

Find hourly flight availability from Knoxville to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

It’s typically best to fly out from Knoxville to Puerto Rico in the afternoon. Doing so could potentially save you 29% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated December 23, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,014 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,014 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,105 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Puerto Rico. 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 from for flights from Knoxville to Puerto Rico?

    For a flight from Knoxville to Puerto Rico, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city.

  • Can I find deals for flights from Knoxville to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Knoxville to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Puerto Rico.

  • Can I find deals for business class flights from Knoxville to Puerto Rico?

    Yes. Cheapflights offers flight deals from Knoxville to Puerto Rico 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 Puerto Rico?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Puerto Rico (average of $108). Flying from Knoxville to Puerto Rico in May is currently the most expensive (average of $346). 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

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 Knoxville to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Luis Munoz Marin Intl flights
Nashville to Punta Cana flights
Memphis to Luis Munoz Marin Intl flights
Nashville to Providenciales flights
Nashville to Saint Thomas Island flights
Memphis to Saint Thomas Island flights
Nashville to Oranjestad flights
Nashville to Nassau flights
Knoxville to Luis Munoz Marin Intl flights
Memphis to Punta Cana flights
Memphis to Montego Bay flights
Memphis to Nassau flights
Memphis to Oranjestad flights
Nashville to Santo Domingo flights
Knoxville to Oranjestad flights
Nashville to Simpson Bay flights
Memphis to Simpson Bay flights
Chattanooga to Punta Cana flights
Nashville to Road Town flights
Nashville to St. John's flights
Chattanooga to Luis Munoz Marin Intl flights
Nashville to Montego Bay flights
Nashville to George Town flights
Nashville to Christiansted flights
Memphis to Castries flights
Knoxville to Punta Cana flights
Blountville to Luis Munoz Marin Intl flights
Knoxville to George Town flights
Nashville to Castries flights
Memphis to Road Town flights
Memphis to Bridgetown flights
Memphis to George Town flights
Nashville to Willemstad flights
Knoxville to Montego Bay flights
Nashville to Havana flights
Nashville to Gregory Town flights
Blountville to Montego Bay flights
Nashville to Bridgetown flights
Chattanooga to Saint Thomas Island flights
Memphis to Providenciales flights
Knoxville to Nassau flights
Chattanooga to Montego Bay flights
Knoxville to Castries flights
Nashville to St. George's flights
Nashville to Puerto Plata flights
Memphis to Christiansted flights
Knoxville to Providenciales flights
Knoxville to Saint Thomas Island flights
Nashville to Marsh Harbour flights
Nashville to Georgetown flights

Top 3 airlines flying from Knoxville to Puerto Rico

Discover the top 3 airlines that operate flights from Knoxville to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$335Average$507FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$365Average$548FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$435Average$635FlexibilityNo cancel feeOn-time69%

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.