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Luis Munoz Marin Intl

$283+ Cheap flights from Kingsport, TN to Luis Munoz Marin Intl (SJU)

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Kingsport to Luis Munoz Marin Intl

Keep the following information in mind while searching for Kingsport to Luis Munoz Marin Intl flight deals. Data was last updated October 30, 2025.

Round-trip from

$376
(Kiwi.com)

One-way from

$283
(Delta)

Popular in

September

Cheapest in

June

Average price

$630
From Kingsport to San Juan Luis Munoz Marin Intl
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One-way flight from Kingsport to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 9% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Kingsport to Luis Munoz Marin Intl

Cheapest flights from Kingsport to Luis Munoz Marin Intl
Explore the most affordable flight options available from Kingsport to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 11/116:08 amTRI - SJU
2 stops8h 39mAmerican Airlines
Mon 11/175:59 pmSJU - TRI
1 stop16h 40mAmerican Airlines
Deal found 10/29$545
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/213:57 pmTRI - SJU
1 stop23h 02mMultiple Airlines
Mon 1/57:15 amSJU - TRI
1 stop10h 50mMultiple Airlines
Deal found 10/29$654
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 11/236:25 amTRI - SJU
1 stop8h 29mAmerican Airlines
Fri 11/288:00 amSJU - TRI
1 stop16h 53mAmerican Airlines
Deal found 10/28$680
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/228:25 pmTRI - SJU
2 stops12h 45mAmerican Airlines
Sat 11/298:00 amSJU - TRI
1 stop13h 00mAmerican Airlines
Deal found 10/29$705
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 12/218:26 pmTRI - SJU
2 stops12h 09mAmerican Airlines
Mon 1/56:15 pmSJU - TRI
1 stop16h 26mAmerican Airlines
Deal found 10/29$859
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/208:26 pmTRI - SJU
1 stop14h 13mAmerican Airlines
Mon 1/56:15 pmSJU - TRI
1 stop16h 26mAmerican Airlines
Deal found 10/29$993
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/228:25 pmTRI - SJU
1 stop15h 40mAmerican Airlines
Sun 11/308:00 amSJU - TRI
1 stop14h 53mAmerican Airlines
Deal found 10/30$1,165

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingsport to Luis Munoz Marin Intl 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 October 30, 2025.
Use the filters below to find and compare flights from Kingsport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Kingsport

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Fri 2/6

5:08 pm-2:50 am

1 stop8h 42m

San Juan Luis Munoz Marin Intl

Sat 2/14

11:05 am-4:28 pm

2 stops54h 23m

$376

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Fri 1/30

12:07 pm-8:50 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Mon 2/2

6:00 am-4:01 pm

2 stops11h 01m

$435

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Sat 1/17

7:24 pm-1:08 pm

1 stop16h 44m

San Juan Luis Munoz Marin Intl

Sun 1/25

6:00 am-4:01 pm

2 stops11h 01m

$495

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Fri 2/6

7:23 am-10:26 pm

1 stop14h 03m

San Juan Luis Munoz Marin Intl

Sat 2/14

10:57 am-9:44 pm

2 stops11h 47m

$520

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Tue 11/11

7:22 pm-10:17 am

2 stops13h 55m

San Juan Luis Munoz Marin Intl

Mon 11/17

6:42 pm-9:39 am

2 stops15h 57m

$545

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Sun 11/9

6:05 am-12:46 pm

1 stop5h 41m

$283

BlountvilleSan Juan

TRI - SJU

TRISJU

Blountville Tri Cities TN/VA

Sun 11/9

6:25 am-4:06 pm

2 stops8h 41m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Kingsport to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport

What is the cheapest month to book a flight from Kingsport to San Juan Luis Munoz Marin Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Kingsport to San Juan Luis Munoz Marin Intl Airport (average of $108). Flying from Kingsport to San Juan Luis Munoz Marin Intl Airport in September is currently the most expensive (average of $350). 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 Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Kingsport to San Juan Luis Munoz Marin Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Kingsport to San Juan Luis Munoz Marin Intl Airport?

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

Travelers seeking maximum savings on their Kingsport to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Kingsport to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Kingsport to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl Airport?

    A quick flight from Kingsport to San Juan Luis Munoz Marin Intl Airport can take about 7h 43m. American Airlines provides one of the quickest options available for as low as $435. There are 1595 mi between Kingsport and San Juan Luis Munoz Marin Intl Airport.

  • Can I find deals for flights from Kingsport to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Kingsport to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kingsport to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Kingsport to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Kingsport to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Kingsport to San Juan Luis Munoz Marin Intl Airport (average of $108). Flying from Kingsport to San Juan Luis Munoz Marin Intl Airport in September is currently the most expensive (average of $350). 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 3 airlines flying from Kingsport to Luis Munoz Marin Intl

Discover the top 3 airlines that operate flights from Kingsport to Luis Munoz Marin Intl. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$320Average$477FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$353Average$590FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$365Average$598FlexibilityNo cancel feeOn-time71%

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