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Cheap flights from Knoxville to San Juan from $131

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 8/23. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
12:50 pm - 1:41 pm
TYS
-
SJU
24h 51m
1 stop
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
$258Multiple Airlines
Mon, Aug 10 - Fri, Aug 14
Multiple Airlines Logo
10:54 am - 11:38 pm
TYS
-
SJU
12h 44m
1 stop
Multiple Airlines Logo
8:30 am - 4:48 pm
SJU
-
TYS
8h 18m
1 stop
$278Multiple Airlines
Wed, Sep 9 - Sun, Sep 13
Multiple Airlines Logo
6:04 pm - 11:38 pm
TYS
-
SJU
29h 34m
1 stop
Multiple Airlines Logo
8:30 am - 11:30 pm
SJU
-
TYS
15h 00m
1 stop
$289Multiple Airlines
Tue, Oct 6 - Sun, Oct 11
Delta Logo
4:38 pm - 10:29 pm
TYS
-
SJU
5h 51m
1 stop
Delta Logo
5:49 pm - 11:52 pm
SJU
-
TYS
6h 03m
1 stop
$298Delta
Fri, Aug 21 - Tue, Aug 25
Multiple Airlines Logo
1:55 pm - 2:59 am
TYS
-
SJU
13h 04m
1 stop
Multiple Airlines Logo
6:35 am - 6:04 pm
SJU
-
TYS
11h 29m
1 stop
$303Multiple Airlines
Fri, Aug 28 - Mon, Aug 31
Multiple Airlines Logo
7:30 am - 12:41 am
TYS
-
SJU
17h 11m
2 stops
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
$304Multiple Airlines
Mon, Aug 10 - Fri, Aug 14
Multiple Airlines Logo
8:14 pm - 11:38 pm
TYS
-
SJU
27h 24m
1 stop
Multiple Airlines Logo
8:30 am - 11:30 pm
SJU
-
TYS
15h 00m
1 stop
$306Multiple Airlines
Mon, Oct 5 - Sun, Oct 11
Multiple Airlines Logo
1:54 pm - 11:50 pm
TYS
-
SJU
9h 56m
1 stop
Multiple Airlines Logo
5:12 pm - 10:04 am
SJU
-
TYS
16h 52m
1 stop
$318Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
7:04 pm - 11:38 pm
TYS
-
SJU
28h 34m
1 stop
Multiple Airlines Logo
5:12 pm - 8:25 am
SJU
-
TYS
15h 13m
1 stop
$319Multiple Airlines
Tue, Oct 13 - Sat, Oct 24
Multiple Airlines Logo
8:29 pm - 12:41 am
TYS
-
SJU
28h 12m
2 stops
Multiple Airlines Logo
6:26 am - 10:24 pm
SJU
-
TYS
15h 58m
1 stop
$327Multiple Airlines
Thu, Aug 13 - Mon, Aug 17

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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
Aug 21
TYS7:40 pmKnoxville McGhee Tyson
14h 03m
1 stop
SJU9:43 amSan Juan Luis Munoz Marin Intl
Sep 9
SJU2:58 pmSan Juan Luis Munoz Marin Intl
7h 52m
2 stops
TYS10:50 pmKnoxville McGhee Tyson
$372
American Airlines
Oct 5
TYS8:37 pmKnoxville McGhee Tyson
14h 28m
2 stops
SJU11:05 amSan Juan Luis Munoz Marin Intl
Oct 6
SJU3:50 pmSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
TYS11:30 pmKnoxville McGhee Tyson
$377
American Airlines
Jul 6
TYS11:43 amKnoxville McGhee Tyson
12h 07m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Jul 13
SJU11:54 amSan Juan Luis Munoz Marin Intl
12h 05m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$661

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
Aug 21
TYS5:45 amKnoxville McGhee Tyson
7h 09m
1 stop
SJU12:54 pmSan Juan Luis Munoz Marin Intl
Aug 21
SJU4:55 pmSan Juan Luis Munoz Marin Intl
7h 04m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$352
United Airlines
Oct 6
TYS5:45 amKnoxville McGhee Tyson
6h 49m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Oct 6
SJU4:55 pmSan Juan Luis Munoz Marin Intl
7h 04m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$383
United Airlines
Jul 14
TYS1:35 pmKnoxville McGhee Tyson
7h 49m
1 stop
SJU9:24 pmSan Juan Luis Munoz Marin Intl
Jul 18
SJU7:20 amSan Juan Luis Munoz Marin Intl
7h 07m
1 stop
TYS2:27 pmKnoxville McGhee Tyson
$856

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 June 30, 2026.
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

Cheapest round-trip

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 8/10

12:50 pm-1:41 pm

1 stop24h 51m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:26 am-10:24 pm

1 stop15h 58m

$258

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Wed 9/9

10:54 am-11:38 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

Sun 9/13

8:30 am-4:48 pm

1 stop8h 18m

$278

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 10/6

6:04 pm-11:38 pm

1 stop29h 34m

San Juan Luis Munoz Marin Intl

Sun 10/11

8:30 am-11:30 pm

1 stop15h 00m

$289
Quickest round-trip

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 8/21

4:38 pm-10:29 pm

1 stop5h 51m

San Juan Luis Munoz Marin Intl

Tue 8/25

5:49 pm-11:52 pm

1 stop6h 03m

$298

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 8/28

1:55 pm-2:59 am

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Mon 8/31

6:35 am-6:04 pm

1 stop11h 29m

$303

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 8/10

7:30 am-12:41 am

2 stops17h 11m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:26 am-10:24 pm

1 stop15h 58m

$304

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Mon 10/5

8:14 pm-11:38 pm

1 stop27h 24m

San Juan Luis Munoz Marin Intl

Sun 10/11

8:30 am-11:30 pm

1 stop15h 00m

$306

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Fri 9/18

1:54 pm-11:50 pm

1 stop9h 56m

San Juan Luis Munoz Marin Intl

Tue 9/22

5:12 pm-10:04 am

1 stop16h 52m

$318

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 10/13

7:04 pm-11:38 pm

1 stop28h 34m

San Juan Luis Munoz Marin Intl

Sat 10/24

5:12 pm-8:25 am

1 stop15h 13m

$319

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 8/13

8:29 pm-12:41 am

2 stops28h 12m

San Juan Luis Munoz Marin Intl

Mon 8/17

6:26 am-10:24 pm

1 stop15h 58m

$327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

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 September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $486.

Can stopping save me money on Knoxville to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 41% on your flight if you consider stops on a Knoxville to San Juan Luis Munoz Marin Intl Airport flight.

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

As of June 2026, prices for Knoxville to San Juan Luis Munoz Marin Intl Airport flights are approximately 27% cheaper when compared to flights at the same time last year.

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 51m

Direct flights

None
The fastest flight from Knoxville to San Juan Luis Munoz Marin Intl Airport takes 5h 51m
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

Frequently asked questions about flying from Knoxville to San Juan Luis Munoz Marin Intl Airport

  • 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 51m 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 $238Free CancellationRating
7.8
8,451 reviews
Search Delta flights
American AirlinesPriceFrom $365Free CancellationRating
7.1
11,762 reviews
Search American Airlines flights
SouthwestPriceFrom $376Free CancellationRating
7.9
4,247 reviews
Search Southwest 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
Rio Grande
Humacao
Caguas
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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