San Juan

$127+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Jul 23 — Jul 301
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Cheap 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 June 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Fri 8/147:15 pm
TYS
-
SJU
1 stop29h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$226
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/177:15 pm
TYS
-
SJU
1 stop29h 41m
Multiple Airlines
Thu 8/207:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$236
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Fri 8/147:15 pm
TYS
-
SJU
1 stop29h 26m
Multiple Airlines
Tue 8/186:45 am
SJU
-
TYS
1 stop27h 19m
Multiple Airlines
Deal found 6/22$244
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Fri 8/147:15 pm
TYS
-
SJU
1 stop29h 26m
Multiple Airlines
Mon 8/176:26 am
SJU
-
TYS
1 stop15h 58m
Multiple Airlines
Deal found 6/22$245
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Fri 8/147:15 pm
TYS
-
SJU
1 stop29h 26m
Multiple Airlines
Wed 8/196:45 am
SJU
-
TYS
1 stop27h 19m
Multiple Airlines
Deal found 6/22$246
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sun 8/168:15 am
TYS
-
SJU
1 stop16h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$249
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Thu 8/138:15 am
TYS
-
SJU
1 stop16h 26m
Multiple Airlines
Thu 8/207:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$255
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
-
SJU
1 stop11h 47m
Multiple Airlines
Mon 8/176:26 am
SJU
-
TYS
1 stop15h 58m
Multiple Airlines
Deal found 6/22$263
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/178:35 am
TYS
-
SJU
1 stop16h 06m
Multiple Airlines
Sun 8/237:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$267
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
-
SJU
1 stop11h 47m
Multiple Airlines
Sun 8/237:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$275
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sun 8/168:15 am
TYS
-
SJU
1 stop16h 26m
Multiple Airlines
Sun 8/237:00 am
SJU
-
TYS
1 stop9h 25m
Multiple Airlines
Deal found 6/22$280
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1512:54 pm
TYS
-
SJU
1 stop11h 47m
Multiple Airlines
Tue 8/188:57 pm
SJU
-
TYS
1 stop18h 02m
Multiple Airlines
Deal found 6/22$282

Find 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 June 23, 2026.

Round-trip from

$226
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$586
From Knoxville McGhee Tyson to San Juan
One-way flight from Knoxville McGhee Tyson to San Juan
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 23, 2026.
Use the filters below to find and compare flights from Knoxville to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 8/14

4:38 pm-10:29 pm

1 stop5h 51m

San Juan Luis Munoz Marin Intl

Mon 8/24

2:59 pm-11:52 pm

1 stop8h 53m

$416

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 8/21

8:10 am-11:59 pm

1 stop15h 49m

San Juan Luis Munoz Marin Intl

Tue 8/25

5:10 pm-11:51 pm

1 stop6h 41m

$446
Quickest round-trip

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 8/3

5:40 am-11:46 am

1 stop6h 06m

San Juan Luis Munoz Marin Intl

Mon 8/10

5:49 pm-11:52 pm

1 stop6h 03m

$446

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 9/1

7:15 am-3:42 pm

1 stop8h 27m

San Juan Luis Munoz Marin Intl

Wed 9/2

4:55 pm-11:59 pm

1 stop7h 04m

$516

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 8/1

8:00 am-7:25 pm

2 stops11h 25m

San Juan Luis Munoz Marin Intl

Thu 8/6

6:30 am-6:35 pm

2 stops12h 05m

$556

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 8/17

6:02 pm-3:42 pm

2 stops21h 40m

San Juan Luis Munoz Marin Intl

Sat 8/29

1:00 am-8:53 pm

2 stops19h 53m

$604

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 7/4

7:35 am-4:46 pm

1 stop9h 11m

San Juan Luis Munoz Marin Intl

Fri 7/10

6:00 am-2:48 pm

1 stop8h 48m

$626
Cheapest one-way

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 8/24

8:25 am-8:05 pm

2 stops11h 40m

$192
Quickest one-way

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 7/5

5:40 am-11:44 am

1 stop6h 04m

$298

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 7/4

6:00 am-1:31 pm

1 stop7h 31m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

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

Currently, November is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $160). Flying from Knoxville to San Juan in March is currently the most expensive (average of $521). 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 San Juan?

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 June 23, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican 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.

Comfort

8.0

Overall

7.9

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

7.9

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

7.9

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Comfort

8.0

Overall

7.9

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

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.

  • How long is the flight from Knoxville to San Juan?

    For as low as $416, Delta can have you in San Juan from Knoxville in 5h 51m. The distance between Knoxville and San Juan is about 1625 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $238, 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 Southwest and American Airlines - these airlines can fly you to your destination from $376 and $385, respectively. These flights start at 59% 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, November is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $160). Flying from Knoxville to San Juan in March is currently the most expensive (average of $521). 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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Alternative routes for Knoxville to San Juan

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

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 June 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$496FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$376Average$516FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$385Average$594FlexibilityNo cancel feeOn-time71%

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