$193 Cheap Flights from San Juan (SJU) to Knoxville (TYS)

View $193 flight on Mon, Oct 27, 2025Opens in a new window
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Cheap Flights from San Juan to Knoxville (SJU-TYS)

Prices were available within the past 7 days and start at $193 for one-way flights and $335 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 15 - Wed, Jan 21
SJU
San Juan
TYS
Knoxville
$335 Roundtrip, found 4 hours ago
$335
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Jan 15 from San Juan to Knoxville, returning Wed, Jan 21, priced at $335 found 4 hours ago
Delta
Wed, Oct 22 - Wed, Oct 29
SJU
San Juan
TYS
Knoxville
$335 Roundtrip, found 4 hours ago
$335
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Oct 22 from San Juan to Knoxville, returning Wed, Oct 29, priced at $335 found 4 hours ago
United
Fri, Aug 29 - Tue, Sep 2
SJU
San Juan
TYS
Knoxville
$357 Roundtrip, found 3 hours ago
$357
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Aug 29 from San Juan to Knoxville, returning Tue, Sep 2, priced at $357 found 3 hours ago
American Airlines
Thu, Feb 12 - Mon, Feb 16
SJU
San Juan
TYS
Knoxville
$360 Roundtrip, found 3 hours ago
$360
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Feb 12 from San Juan to Knoxville, returning Mon, Feb 16, priced at $360 found 3 hours ago
United
Thu, Aug 28 - Mon, Sep 1
SJU
San Juan
TYS
Knoxville
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 28 from San Juan to Knoxville, returning Mon, Sep 1, priced at $365 found 1 day ago
United
Fri, Aug 29 - Tue, Sep 2
SJU
San Juan
TYS
Knoxville
$367 Roundtrip, found 3 hours ago
$367
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Aug 29 from San Juan to Knoxville, returning Tue, Sep 2, priced at $367 found 3 hours ago
United
Fri, Jul 18 - Tue, Jul 22
SJU
San Juan
TYS
Knoxville
$371 Roundtrip, found 1 day ago
$371
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jul 18 from San Juan to Knoxville, returning Tue, Jul 22, priced at $371 found 1 day ago
United
Thu, May 22 - Tue, May 27
SJU
San Juan
TYS
Knoxville
$372 Roundtrip, found 1 day ago
$372
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 22 from San Juan to Knoxville, returning Tue, May 27, priced at $372 found 1 day ago
American Airlines
Mon, Oct 27 - Sat, Nov 1
SJU
San Juan
TYS
Knoxville
$375 Roundtrip, just found
$375
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 27 from San Juan to Knoxville, returning Sat, Nov 1, priced at $375 just found
Delta
Wed, Oct 1 - Thu, Oct 2
SJU
San Juan
TYS
Knoxville
$380 Roundtrip, found 4 hours ago
$380
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Oct 1 from San Juan to Knoxville, returning Thu, Oct 2, priced at $380 found 4 hours ago
Flights from San Juan (SJU) to Knoxville (TYS)
Origin airport
Luis Munoz Marin Intl.
Destination airport
McGhee Tyson
Airlines serving
American Airlines, Delta, United
Roundtrip price
$335
Distance
1625 mi

San Juan to Knoxville Flights

The cheapest times to fly from San Juan to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Knoxville are during the month of January. You can find some of the cheapest flights from San Juan to Knoxville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Juan to Knoxville

Sunday is one of the best days to book for cheap flights from San Juan to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Juan to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $193 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS) cost?
Discover the latest flight deals from SJU to TYS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJU to TYS?
The cheapest flights from SJU to TYS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to TYS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SJU to TYS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS)?
Nonstop flights from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SJU to TYS?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS)?
To avoid possible delays on the Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS) route, aim to travel before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS) last-minute?
Waiting until just before your departure to book a flight from SJU to TYS often results in higher prices. Although you may find some last-minute discounts, they aren’t always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a SJU to TYS flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJU to TYS flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one convenient place takes the hassle out of travel planning. Just pick your flights and choose from our wide range of stays, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to McGhee Tyson Airport (TYS)?
If you booked your SJU to TYS flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.