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$171+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Knoxville McGhee Tyson to San Juan are usually found in February or September, booked 38 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 febrero 20, 2025.

Round-trip from

$274
(Mytrip)

One-way from

$171
(eDestinos)

Popular in

December

Cheapest in

February

Average price

$391
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. 10% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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.
mar. 4/151:29 pmTYS - SJU
2 stops11h 52mMultiple Airlines
dom. 4/207:49 pmSJU - TYS
1 stop25h 26mMultiple Airlines
Deal found 2/19$274
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/195:00 pmTYS - SJU
1 stop6h 07mDelta
mié. 4/25:16 pmSJU - TYS
1 stop6h 26mDelta
Deal found 2/19$322
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/86:51 amTYS - SJU
1 stop6h 29mAmerican Airlines
mié. 5/141:10 pmSJU - TYS
1 stop6h 05mAmerican Airlines
Deal found 2/19$335
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1910:35 amTYS - SJU
1 stop10h 08mUnited Airlines
sáb. 3/297:10 amSJU - TYS
1 stop16h 44mUnited Airlines
Deal found 2/19$475

Find flights from Knoxville to San Juan within your budget

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 febrero 20, 2025.

Fly from

Knoxville

Fly to

San Juan

Route

Depart

Return

Price

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

mar. 4/15

1:29 pm-1:21 am

2 stops11h 52m

San Juan Luis Munoz Marin Intl

dom. 4/20

7:49 pm-9:15 pm

1 stop25h 26m

$274

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

mié. 3/19

5:45 am-1:28 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

jue. 4/3

5:16 pm-11:42 pm

1 stop6h 26m

$322

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

jue. 5/8

6:51 am-1:20 pm

1 stop6h 29m

San Juan Luis Munoz Marin Intl

mié. 5/14

1:10 pm-7:15 pm

1 stop6h 05m

$335

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

mié. 3/19

10:35 am-8:43 pm

1 stop10h 08m

San Juan Luis Munoz Marin Intl

sáb. 3/29

7:10 am-11:54 pm

1 stop16h 44m

$475

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

vie. 3/21

1:05 pm-9:44 pm

1 stop8h 39m

$171

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

vie. 3/21

7:00 am-11:36 pm

3 stops16h 36m

$879

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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.

Travel insights for flights from Knoxville to San Juan

Get recent, data-driven insights about flights from Knoxville to San Juan including ideal travel times, pricing trends, and more.

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 February 14, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to San Juan, you should look to book at least 38 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, September is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $254). Flying from Knoxville to San Juan in March is currently the most expensive (average of $363). 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 febrero 20, 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 45% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Knoxville to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to San Juan. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Knoxville to San Juan flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 febrero 20, 2025.
To help decide which airline to fly from Knoxville to San Juan, see what other customers have to say about Delta, United Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 4 different airlines.

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

    Currently priced at $322, 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 $335 and $475, respectively. These flights start at 35% 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, September is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $254). Flying from Knoxville to San Juan in March is currently the most expensive (average of $363). 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 4 airlines flying from Knoxville to San Juan

Discover the top 4 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$206Average$298FlexibilityNo cancel feeOn-time62%
DeltaCheapest$299Average$449FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$319Average$504FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$356Average$562FlexibilityNo cancel feeOn-time71%
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