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Cheap flights from Knoxville to San Juan from $113

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to San Juan departing on 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Knoxville to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:59 am - 11:44 pm
TYS
-
SJU
10h 45m1 stop
Multiple Airlines Logo
12:14 pm - 5:53 pm
SJU
-
TYS
30h 39m1 stop
$219Multiple Airlines
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
1:39 pm - 12:13 am
TYS
-
SJU
9h 34m1 stop
Multiple Airlines Logo
5:38 pm - 11:05 pm
SJU
-
TYS
6h 27m1 stop
$241Multiple Airlines
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
11:59 am - 11:44 pm
TYS
-
SJU
10h 45m1 stop
Multiple Airlines Logo
7:34 pm - 5:53 pm
SJU
-
TYS
23h 19m2 stops
$281Multiple Airlines
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
5:59 pm - 3:35 pm
TYS
-
SJU
20h 36m1 stop
Multiple Airlines Logo
6:00 am - 9:21 pm
SJU
-
TYS
40h 21m2 stops
$282Multiple Airlines
Sat, Feb 7 - Sat, Feb 21
Multiple Airlines Logo
1:00 pm - 11:33 pm
TYS
-
SJU
9h 33m1 stop
Multiple Airlines Logo
5:25 pm - 10:10 pm
SJU
-
TYS
29h 45m2 stops
$291Multiple Airlines
Tue, Feb 3 - Wed, Feb 18
Multiple Airlines Logo
9:36 pm - 3:31 pm
TYS
-
SJU
16h 55m1 stop
Multiple Airlines Logo
2:54 am - 11:38 pm
SJU
-
TYS
21h 44m2 stops
$300Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
4:23 pm - 6:02 pm
TYS
-
SJU
24h 39m2 stops
Multiple Airlines Logo
5:38 pm - 11:05 pm
SJU
-
TYS
6h 27m1 stop
$307Multiple Airlines
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
9:36 pm - 1:57 am
TYS
-
SJU
27h 21m2 stops
Multiple Airlines Logo
8:40 am - 12:00 pm
SJU
-
TYS
28h 20m1 stop
$310Multiple Airlines
Fri, Feb 13 - Thu, Feb 19
Multiple Airlines Logo
2:54 pm - 2:53 am
TYS
-
SJU
10h 59m1 stop
Multiple Airlines Logo
8:40 am - 12:00 pm
SJU
-
TYS
28h 20m1 stop
$311Multiple Airlines
Sat, Feb 14 - Thu, Feb 19
Multiple Airlines Logo
6:11 pm - 10:47 am
TYS
-
SJU
15h 36m1 stop
Multiple Airlines Logo
8:40 am - 12:00 pm
SJU
-
TYS
28h 20m1 stop
$315Multiple Airlines
Sun, Feb 15 - Thu, Feb 19

American Airlines flights from Knoxville to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Knoxville to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Feb 26
TYS5:00 amKnoxville McGhee Tyson
5h 41m
1 stop
SJU11:41 amSan Juan Luis Munoz Marin Intl
Mar 6
SJU10:57 amSan Juan Luis Munoz Marin Intl
8h 35m
1 stop
TYS6:32 pmKnoxville McGhee Tyson
$365
Find similar
American Airlines
Feb 25
TYS8:50 amKnoxville McGhee Tyson
9h 16m
2 stops
SJU7:06 pmSan Juan Luis Munoz Marin Intl
Mar 7
SJU7:00 amSan Juan Luis Munoz Marin Intl
12h 32m
1 stop
TYS6:32 pmKnoxville McGhee Tyson
$390
Find similar
American Airlines
Jan 21
TYS6:05 amKnoxville McGhee Tyson
11h 17m
2 stops
SJU6:22 pmSan Juan Luis Munoz Marin Intl
Jan 25
SJU7:07 amSan Juan Luis Munoz Marin Intl
16h 40m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
$405
Find similar

United Airlines flights from Knoxville to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Knoxville to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Dec 28
TYS7:23 pmKnoxville McGhee Tyson
25h 59m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 9
SJU2:05 amSan Juan Luis Munoz Marin Intl
19h 47m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
$982
Find similar
United Airlines
Dec 17
TYS7:00 amKnoxville McGhee Tyson
14h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Dec 19
SJU5:50 pmSan Juan Luis Munoz Marin Intl
17h 27m
2 stops
TYS10:17 amKnoxville McGhee Tyson
$998
Find similar
United Airlines
Dec 28
TYS7:23 pmKnoxville McGhee Tyson
25h 59m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 9
SJU2:05 amSan Juan Luis Munoz Marin Intl
19h 47m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
$1,040
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Knoxville to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 1/10

11:59 am-11:44 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Sat 1/17

12:14 pm-5:53 pm

1 stop30h 39m

$219

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 1/11

1:39 pm-12:13 am

1 stop9h 34m

San Juan Luis Munoz Marin Intl

Sun 1/18

5:38 pm-11:05 pm

1 stop6h 27m

$241

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 1/10

11:59 am-11:44 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Sat 1/17

7:34 pm-5:53 pm

2 stops23h 19m

$281

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 2/7

5:59 pm-3:35 pm

1 stop20h 36m

San Juan Luis Munoz Marin Intl

Sat 2/21

6:00 am-9:21 pm

2 stops40h 21m

$282

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 2/3

1:00 pm-11:33 pm

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Wed 2/18

5:25 pm-10:10 pm

2 stops29h 45m

$291

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 2/16

9:36 pm-3:31 pm

1 stop16h 55m

San Juan Luis Munoz Marin Intl

Sun 2/22

2:54 am-11:38 pm

2 stops21h 44m

$300

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 1/11

4:23 pm-6:02 pm

2 stops24h 39m

San Juan Luis Munoz Marin Intl

Sun 1/18

5:38 pm-11:05 pm

1 stop6h 27m

$307

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 2/13

9:36 pm-1:57 am

2 stops27h 21m

San Juan Luis Munoz Marin Intl

Thu 2/19

8:40 am-12:00 pm

1 stop28h 20m

$310

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 2/14

2:54 pm-2:53 am

1 stop10h 59m

San Juan Luis Munoz Marin Intl

Thu 2/19

8:40 am-12:00 pm

1 stop28h 20m

$311

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 2/15

6:11 pm-10:47 am

1 stop15h 36m

San Juan Luis Munoz Marin Intl

Thu 2/19

8:40 am-12:00 pm

1 stop28h 20m

$315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Knoxville to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Knoxville and San Juan Luis Munoz Marin Intl Airport?

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

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $440.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Knoxville is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $445. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Knoxville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $579.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $314. Flights at noon are often more expensive with an average ticket price of $562.

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $534 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Knoxville for as low as $382 on momondo.

How have Knoxville to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

When to book flights from Knoxville to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to San Juan Luis Munoz Marin Intl Airport (TYS to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

5h 45m

Direct flights

None
The fastest flight from Knoxville to San Juan Luis Munoz Marin Intl Airport takes 5h 45m
There are no direct flights from Knoxville to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Knoxville to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Knoxville McGhee Tyson to San Juan Luis Munoz Marin Intl by plane?

    Knoxville McGhee Tyson and San Juan Luis Munoz Marin Intl are 1629.5 mi apart from one another. Typically, this will take 5h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Knoxville to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Knoxville to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Knoxville to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $335Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $365Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $435Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Humacao
Caguas
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to San Juan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to San Juan for you.

Can I find flights from Knoxville to San Juan with flexible booking policies on momondo?

Flights from Knoxville to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Knoxville to San Juan right now. Can momondo alert me if prices change?

Price alerts on flights to San Juan from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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