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Luis Munoz Marin Intl

$430+ Cheap flights from Kingsport, TN to Luis Munoz Marin Intl (SJU)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$430
(American Airlines)

Popular in

February

Cheapest in

September

Average price

$634
From Kingsport to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/3011:02 amTRI - SJU
1 stop12h 08mAmerican Airlines
Fri 9/57:05 pmSJU - TRI
2 stops14h 48mAmerican Airlines
Deal found 7/28$430

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 July 31, 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

Sat 8/30

11:02 am-11:10 pm

1 stop12h 08m

San Juan Luis Munoz Marin Intl

Fri 9/5

7:05 pm-9:53 am

2 stops14h 48m

$430

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, September is the cheapest month in which you can book a flight from Kingsport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Kingsport to San Juan Luis Munoz Marin Intl Airport 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 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 July 31, 2025.

When flying from Kingsport to San Juan Luis Munoz Marin Intl Airport, 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 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 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 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 July 31, 2025.
Peruse reviews from past customers who have flown with 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.
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

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.

  • 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, September is the cheapest month in which you can book a flight from Kingsport to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Kingsport to San Juan Luis Munoz Marin Intl Airport 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

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$272Average$462FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$553FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$353Average$593FlexibilityNo cancel feeOn-time69%

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