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San Juan

Cheap flights from Knoxville (TYS) to San Juan

TYS — SJU
Oct 25 — Nov 11
Sun 10/25
Sun 11/1
1 adult, Economy
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Find flight deals from Knoxville to San Juan

Popular in

March

Cheapest in

April

Average price

$496
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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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

Cheapflights Insights

Everything you need to know about your flight from Knoxville to San Juan

How far ahead should I book a flight from Knoxville to San Juan?

To ensure you get the cheapest price possible for a flight from Knoxville to San Juan, you should look to book at least 82 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, April is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $486). Flying from Knoxville to San Juan in March is currently the most expensive (average of $761). 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.

Reviews of airlines servicing San Juan

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.
Southwest
8.0
Very good
4,200 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
Southwest
8.0
Very good
4,200 reviews
Southwest
8.0
Very good
4,200 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
Delta
7.8
Good
8,598 reviews
Southwest
8.0
Very good
4,200 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
American Airlines
7.0
Good
12,085 reviews
Southwest
8.0
Very good
4,200 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.

Related info for your journey

  • 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.

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

    Currently priced at $365, American Airlines will fly you from Knoxville to San Juan and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $376 and $384, respectively. These flights start at 36% 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, April is the cheapest month in which you can book a flight from Knoxville to San Juan (average of $486). Flying from Knoxville to San Juan in March is currently the most expensive (average of $761). 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

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Chattanooga to Luis Munoz Marin Intl flights

Top 3 airlines flying from Knoxville to San Juan

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$365Average$608FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$376Average$516FlexibilityNo cancel feeOn-time63%
DeltaCheapest$384Average$465FlexibilityNo cancel feeOn-timeN/A

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