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TYS - SJU

$134 Find cheap flights from Knoxville to San Juan Luis Munoz Marin Intl Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to San Juan departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sa 5/25
Sa 6/1

Search hundreds of travel sites at once for deals on flights to San Juan

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Juan, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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Cheap flight deals from Knoxville to San Juan (TYS-SJU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:04 pm - 11:05 amTYS-SJU
13h 01m1 stop
8:09 pm - 8:04 amSJU-TYS
11h 55m1 stop
$169Frontier
Find Deal
Di, Aug 27 - Sa, Aug 31
7:41 am - 12:22 amTYS-SJU
16h 41m1 stop
3:54 pm - 8:21 amSJU-TYS
16h 27m1 stop
$323American Airlines
Find Deal
Di, Okt 1 - Di, Okt 8
10:18 pm - 11:05 amTYS-SJU
12h 47m1 stop
8:09 pm - 8:04 amSJU-TYS
11h 55m1 stop
$334Frontier
Find Deal
So, Sep 1 - Sa, Sep 7
10:26 pm - 10:45 amTYS-SJU
12h 19m1 stop
8:09 pm - 7:51 amSJU-TYS
11h 42m1 stop
$354Frontier
Find Deal
Di, Jun 25 - Mo, Jul 1
10:26 pm - 10:45 amTYS-SJU
12h 19m1 stop
10:15 pm - 9:57 amSJU-TYS
11h 42m1 stop
$378Frontier
Find Deal
Di, Jun 25 - Sa, Jun 29
5:29 am - 9:42 pmTYS-SJU
16h 13m1 stop
8:44 am - 5:29 pmSJU-TYS
8h 45m1 stop
$384American Airlines
Find Deal
Sa, Aug 31 - Mi, Sep 4
7:15 am - 4:32 pmTYS-SJU
9h 17m1 stop
6:10 am - 2:51 pmSJU-TYS
8h 41m1 stop
$485Delta
Find Deal
Mi, Jun 26 - Di, Jul 2
5:30 am - 2:44 pmTYS-SJU
9h 14m1 stop
5:35 pm - 11:51 pmSJU-TYS
6h 16m1 stop
$504Delta
Find Deal
Di, Mai 7 - Sa, Mai 11
7:00 am - 3:09 pmTYS-SJU
8h 09m1 stop
1:05 am - 11:40 pmSJU-TYS
22h 35m2 stops
$555United Airlines
Find Deal
Di, Okt 1 - Mo, Okt 7
7:00 am - 3:09 pmTYS-SJU
8h 09m1 stop
1:05 am - 11:40 pmSJU-TYS
22h 35m2 stops
$585United Airlines
Find Deal
Do, Sep 26 - Sa, Sep 28

Flights from Knoxville to San Juan - Travel Insights & Trends

Get data-powered insights and trends into flights from Knoxville to San Juan to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to San Juan?

The average price of all flights from Knoxville to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Knoxville to San Juan, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from San Juan, Monday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Knoxville to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Knoxville to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Knoxville to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost $423 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $959 and $805 respectively.

How far in advance should I book a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Knoxville to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Knoxville to San Juan Luis Munoz Marin Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 87 days before departure.

Which airlines provide the cheapest flights from Knoxville to San Juan?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $134. KAYAK users also found Knoxville to San Juan round-trip flights on Frontier from $169 and on American Airlines from $323.

Good to know

Low season

April

High season

March

Cheapest flight

$134
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Knoxville to San Juan

When to book flights from Knoxville to San Juan

Are your dates flexible? Find out the best times to travel from Knoxville to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Knoxville to San Juan flights

  • What is the cheapest flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport was $134 for a one-way ticket and $169 for a round-trip.

  • Do I need a passport to fly between Knoxville and San Juan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Knoxville and on arrival in San Juan.

  • Which aircraft models fly most regularly from Knoxville to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to San Juan?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Knoxville and San Juan, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to San Juan, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to San Juan are Delta and American Airlines. With an average price for the route of $460 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $571 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Knoxville to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Knoxville to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to San Juan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10975 reviews
8.6crew
8.0entertainment
7.4food
7.9comfort
8.2boarding
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Knoxville to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Knoxville to San Juan found on KAYAK in the last 72 hours.
9/19Do
1 stopFrontier
12h 59mTYS-SJU
$134
6/2So
1 stopFrontier
9h 47mTYS-SJU
$189
5/29Mi
1 stopDelta
7h 17mTYS-SJU
$222
5/28Di
1 stopFrontier
9h 32mTYS-SJU
$232
5/29Mi
2 stopsAmerican Airlines
9h 39mTYS-SJU
$246
5/28Di
1 stopAmerican Airlines
15h 00mTYS-SJU
$247
5/26So
2 stops
22h 19mTYS-SJU
$264
5/26So
1 stopUnited Airlines
15h 34mTYS-SJU
$277
5/26So
3 stops
28h 43mTYS-SJU
$358
5/11Sa
3 stopsUnited Airlines
23h 57mTYS-SJU
$449

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Last minute flights from Knoxville to San Juan

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Knoxville to San Juan that are departing in the next 10 days.
4/26Fr
multi-stopDelta
7h 47mTYS-SJU
4/29Mo
multi-stopDelta
6h 25mSJU-TYS
$904
4/26Fr
multi-stopAmerican Airlines
8h 08mTYS-SJU
4/29Mo
multi-stopAmerican Airlines
7h 48mSJU-TYS
$926
4/26Fr
multi-stopUnited Airlines
7h 42mTYS-SJU
4/28So
multi-stopUnited Airlines
12h 18mSJU-TYS
$1,033
4/26Fr
multi-stopUnited Airlines
11h 57mTYS-SJU
4/28So
multi-stopUnited Airlines
9h 21mSJU-TYS
$1,429

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Knoxville - San Juan Flights

Departure:

Knoxville (TYS)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - Knoxville

Cabin classes: