HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$549+ Cheap flights from Kingsport, TN to San Juan

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kingsport to San Juan 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 Kingsport to San Juan

Keep the following information in mind while searching for Kingsport to San Juan flight deals. Data was last updated septiembre 15, 2025.

Round-trip from

$549
(American Airlines)

Popular in

September

Cheapest in

June

Average price

$905
From Kingsport to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Kingsport to San Juan

Cheapest flights from Kingsport to San Juan
Explore the most affordable flight options available from Kingsport to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/186:35 amTRI - SJU
2 stops11h 40mAmerican Airlines
mié. 9/241:37 pmSJU - TRI
2 stops9h 32mAmerican Airlines
Deal found 9/13$605
This American Airlines deal was found by Cheapflights users on 9/14. 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.
sáb. 11/228:25 pmTRI - SJU
2 stops12h 45mAmerican Airlines
dom. 11/307:15 amSJU - TRI
1 stop16h 42mAmerican Airlines
Deal found 9/14$854
This American Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 9/304:31 pmTRI - SJU
2 stops18h 40mAmerican Airlines
mar. 10/711:56 amSJU - TRI
2 stops11h 00mAmerican Airlines
Deal found 9/14$1,280
This Delta deal was found by Cheapflights users on 9/15. 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.
mar. 9/306:11 amTRI - SJU
1 stop10h 20mDelta
mar. 10/77:15 amSJU - TRI
1 stop5h 28mDelta
Deal found 9/15$1,315

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingsport 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 septiembre 15, 2025.
Use the filters below to find and compare flights from Kingsport to San Juan that are best for you.

Fly from

Kingsport

Fly to

San Juan

Route

Depart

Return

Price

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

jue. 2/19

4:19 pm-4:55 am

1 stop11h 36m

San Juan Luis Munoz Marin Intl

dom. 3/1

10:26 am-9:35 pm

2 stops12h 09m

$549

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

vie. 2/27

4:19 pm-4:55 am

1 stop11h 36m

San Juan Luis Munoz Marin Intl

sáb. 3/7

5:41 am-2:11 pm

2 stops9h 30m

$594

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

sáb. 11/22

8:25 pm-10:10 am

2 stops12h 45m

San Juan Luis Munoz Marin Intl

dom. 11/30

7:15 am-10:57 pm

1 stop16h 42m

$854

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Kingsport to San Juan

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

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

Currently, September is the cheapest month in which you can book a flight from Kingsport to San Juan (average of $254). Flying from Kingsport to San Juan in June is currently the most expensive (average of $339). 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 K1N to SJU?

Find hourly flight availability from Kingsport 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 septiembre 15, 2025.

When flying from Kingsport to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Use this chart to determine the cheapest time to fly round-trip from Kingsport to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Kingsport to San Juan flight should consider departing on Wednesday mornings 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.

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 septiembre 15, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from Kingsport 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
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Find useful and relevant information for your journey from Kingsport to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Departing from Kingsport to San Juan will take you 11h 36m. Airlines will cover a distance of 1595 mi.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Kingsport to San Juan (average of $254). Flying from Kingsport to San Juan in June is currently the most expensive (average of $339). 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.

Top 3 airlines flying from Kingsport to San Juan

Discover the top 3 airlines that operate flights from Kingsport 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$320Average$492FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$339Average$590FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$353Average$590FlexibilityNo 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.