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San Juan

$106+ Cheap flights from Knoxville (TYS) to San Juan

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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
dic. 13 — dic. 201
sáb. 12/13
sáb. 12/20
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to San Juan are usually found in February or September, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Knoxville to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 13, 2025.

Round-trip from

$262
(Kiwi.com)

One-way from

$106
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$564
From Knoxville McGhee Tyson to San Juan
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One-way flight from Knoxville McGhee Tyson to San Juan
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Highest demand for flights based on searches. 9% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Knoxville to San Juan

Cheapest flights from Knoxville to San Juan
Explore the most affordable flight options available from Knoxville to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
lun. 11/249:29 pmTYS - SJU
1 stop25h 15mMultiple Airlines
jue. 11/273:59 amSJU - TYS
1 stop16h 20mMultiple Airlines
Deal found 11/12$267
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
dom. 12/141:22 pmTYS - SJU
1 stop9h 51mMultiple Airlines
dom. 12/215:23 pmSJU - TYS
1 stop6h 19mMultiple Airlines
Deal found 11/11$276
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
dom. 12/141:22 pmTYS - SJU
1 stop9h 51mMultiple Airlines
lun. 12/226:00 amSJU - TYS
1 stop16h 53mMultiple Airlines
Deal found 11/11$326
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
jue. 11/205:49 pmTYS - SJU
2 stops29h 35mMultiple Airlines
jue. 11/276:52 pmSJU - TYS
1 stop27h 31mMultiple Airlines
Deal found 11/13$327
This Mytrip deal was found by Cheapflights users on 11/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/282:59 pmTYS - SJU
1 stop8h 25mMultiple Airlines
mar. 12/24:48 pmSJU - TYS
2 stops20h 15mMultiple Airlines
Deal found 11/12$402

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to San Juan 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 noviembre 13, 2025.
Use the filters below to find and compare flights from Knoxville to San Juan that are best for you.

Fly from

Knoxville

Fly to

San Juan

Route

Depart

Return

Price

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

dom. 12/14

1:22 pm-12:13 am

1 stop9h 51m

San Juan Luis Munoz Marin Intl

dom. 12/21

5:23 pm-10:42 pm

1 stop6h 19m

$276

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

dom. 12/14

1:22 pm-12:13 am

1 stop9h 51m

San Juan Luis Munoz Marin Intl

lun. 12/22

6:00 am-9:53 pm

1 stop16h 53m

$326

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

vie. 1/9

8:30 am-11:49 pm

1 stop14h 19m

San Juan Luis Munoz Marin Intl

lun. 1/12

6:00 am-5:28 pm

1 stop12h 28m

$344

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

sáb. 1/3

6:00 am-12:41 am

1 stop17h 41m

San Juan Luis Munoz Marin Intl

dom. 1/11

4:07 pm-5:28 pm

1 stop26h 21m

$385

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

vie. 1/23

7:15 am-9:47 am

2 stops25h 32m

San Juan Luis Munoz Marin Intl

vie. 1/30

2:59 am-8:39 am

2 stops30h 40m

$386

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

sáb. 1/24

7:11 pm-1:08 pm

1 stop16h 57m

San Juan Luis Munoz Marin Intl

sáb. 1/31

6:00 am-5:06 pm

1 stop12h 06m

$390

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

sáb. 1/10

11:59 am-11:32 pm

3 stops34h 33m

San Juan Luis Munoz Marin Intl

sáb. 1/17

4:40 pm-8:39 am

1 stop16h 59m

$411

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

sáb. 1/24

5:59 pm-3:35 pm

1 stop20h 36m

San Juan Luis Munoz Marin Intl

vie. 1/30

2:59 am-5:09 pm

2 stops15h 10m

$446

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

dom. 11/23

1:20 pm-12:28 am

1 stop10h 08m

$106

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

lun. 12/15

1:05 pm-2:50 am

1 stop12h 45m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 15 results
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Best time to book a flight from Knoxville to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from Knoxville to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to San Juan. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to San Juan, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to San Juan?

Currently, August is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $108). Flying from Knoxville to San Juan 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 SJU?

Find hourly flight availability from Knoxville to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to San Juan in the evening. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated noviembre 13, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Knoxville to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

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
9,017 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

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
11,051 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

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 San Juan. 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 San Juan?

    If you book a flight to San Juan from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from McGhee Tyson to San Juan per day from 3 different airlines.

  • What are the cheapest airlines flying from Knoxville to San Juan round-trip?

    Currently priced at $334, Delta will fly you from Knoxville to San Juan and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $365 and $435, respectively. These flights start at 36% lower than the current average price 3 months from now.

  • Can I find deals for flights from Knoxville to San Juan that include hotel bookings?

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

  • How can I find direct flights from Knoxville to San Juan?

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

  • Can I find deals for business class flights from Knoxville to San Juan?

    Yes. Cheapflights offers flight deals from Knoxville to San Juan 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 San Juan?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $108). Flying from Knoxville to San Juan 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

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Top 3 airlines flying from Knoxville to San Juan

Discover the top 3 airlines that operate flights from Knoxville to San Juan. 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 noviembre 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$334Average$486FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$365Average$558FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$435Average$635FlexibilityNo cancel feeOn-time69%

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