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Cheap flights from Knoxville to San Juan from $187

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 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
7:15 am - 4:29 pmTYS-SJU
8h 14m1 stop
Multiple Airlines Logo
7:10 am - 11:09 amSJU-TYS
28h 59m2 stops
$305Multiple Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Multiple Airlines Logo
1:39 pm - 2:57 pmTYS-SJU
24h 18m1 stop
Multiple Airlines Logo
6:00 am - 5:53 pmSJU-TYS
12h 53m1 stop
$330Multiple Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
Multiple Airlines Logo
1:00 pm - 4:04 pmTYS-SJU
26h 04m1 stop
Multiple Airlines Logo
5:00 pm - 8:39 amSJU-TYS
16h 39m1 stop
$332Multiple Airlines
Find Deal
Tue, Jan 13 - Sat, Jan 17
Multiple Airlines Logo
1:22 pm - 1:36 pmTYS-SJU
23h 14m1 stop
Multiple Airlines Logo
6:00 am - 8:03 amSJU-TYS
27h 03m1 stop
$340Multiple Airlines
Find Deal
Thu, Dec 11 - Fri, Dec 19
American Airlines Logo
7:06 pm - 10:07 amTYS-SJU
14h 01m1 stop
American Airlines Logo
12:45 pm - 6:36 pmSJU-TYS
6h 51m1 stop
$365American Airlines
Find Deal
Thu, Feb 19 - Wed, Feb 25
American Airlines Logo
5:03 pm - 10:09 amTYS-SJU
16h 06m1 stop
American Airlines Logo
1:30 am - 11:28 amSJU-TYS
10h 58m1 stop
$385American Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18
Delta Logo
5:30 am - 1:04 pmTYS-SJU
6h 34m1 stop
Delta Logo
7:30 am - 3:11 pmSJU-TYS
8h 41m1 stop
$390Delta
Find Deal
Tue, Jan 13 - Sat, Jan 17
Delta Logo
2:37 pm - 8:57 pmTYS-SJU
5h 20m1 stop
Delta Logo
6:27 pm - 11:45 pmSJU-TYS
6h 18m1 stop
$395Delta
Find Deal
Sun, Feb 1 - Fri, Feb 6
Delta Logo
5:30 am - 11:57 amTYS-SJU
5h 27m1 stop
Delta Logo
7:30 am - 3:21 pmSJU-TYS
8h 51m1 stop
$410Delta
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Sat, Jan 24 - Wed, Jan 28
Delta Logo
2:37 pm - 11:44 pmTYS-SJU
8h 07m1 stop
Delta Logo
7:30 am - 3:21 pmSJU-TYS
8h 51m1 stop
$415Delta
Find Deal
Sun, Jan 25 - Wed, Jan 28

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 19
TYS7:06 pmKnoxville McGhee Tyson
14h 01m
1 stop
SJU10:07 amSan Juan Luis Munoz Marin Intl
Feb 25
SJU12:45 pmSan Juan Luis Munoz Marin Intl
6h 51m
1 stop
TYS6:36 pmKnoxville McGhee Tyson
$365
Find similar
American Airlines
Dec 11
TYS5:03 pmKnoxville McGhee Tyson
16h 06m
1 stop
SJU10:09 amSan Juan Luis Munoz Marin Intl
Dec 18
SJU1:30 amSan Juan Luis Munoz Marin Intl
10h 58m
1 stop
TYS11:28 amKnoxville McGhee Tyson
$385
Find similar
American Airlines
Nov 7
TYS10:16 amKnoxville McGhee Tyson
9h 32m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
Nov 9
SJU2:47 pmSan Juan Luis Munoz Marin Intl
10h 12m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$565
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
Nov 10
TYS7:00 amKnoxville McGhee Tyson
8h 36m
1 stop
SJU4:36 pmSan Juan Luis Munoz Marin Intl
Nov 12
SJU8:10 amSan Juan Luis Munoz Marin Intl
9h 58m
1 stop
TYS5:08 pmKnoxville McGhee Tyson
$525
Find similar
United Airlines
Nov 10
TYS11:45 amKnoxville McGhee Tyson
8h 41m
1 stop
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Nov 11
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 12m
2 stops
TYS1:17 pmKnoxville McGhee Tyson
$700
Find similar
United Airlines
Nov 1
TYS10:50 amKnoxville McGhee Tyson
12h 46m
2 stops
SJU11:36 pmSan Juan Luis Munoz Marin Intl
Nov 8
SJU8:10 amSan Juan Luis Munoz Marin Intl
16h 49m
2 stops
TYS11:59 pmKnoxville McGhee Tyson
$849
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 October 30, 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

Mon 1/19

7:15 am-4:29 pm

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Fri 1/23

7:10 am-11:09 am

2 stops28h 59m

$305

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 1/8

1:39 pm-2:57 pm

1 stop24h 18m

San Juan Luis Munoz Marin Intl

Sun 1/11

6:00 am-5:53 pm

1 stop12h 53m

$330

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 1/13

1:00 pm-4:04 pm

1 stop26h 04m

San Juan Luis Munoz Marin Intl

Sat 1/17

5:00 pm-8:39 am

1 stop16h 39m

$332

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 12/11

1:22 pm-1:36 pm

1 stop23h 14m

San Juan Luis Munoz Marin Intl

Fri 12/19

6:00 am-8:03 am

1 stop27h 03m

$340

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 2/19

7:06 pm-10:07 am

1 stop14h 01m

San Juan Luis Munoz Marin Intl

Wed 2/25

12:45 pm-6:36 pm

1 stop6h 51m

$365

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Thu 12/11

5:03 pm-10:09 am

1 stop16h 06m

San Juan Luis Munoz Marin Intl

Thu 12/18

1:30 am-11:28 am

1 stop10h 58m

$385

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Tue 1/13

5:30 am-1:04 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Sat 1/17

7:30 am-3:11 pm

1 stop8h 41m

$390

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 2/1

2:37 pm-8:57 pm

1 stop5h 20m

San Juan Luis Munoz Marin Intl

Fri 2/6

6:27 pm-11:45 pm

1 stop6h 18m

$395

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sat 1/24

5:30 am-11:57 am

1 stop5h 27m

San Juan Luis Munoz Marin Intl

Wed 1/28

7:30 am-3:21 pm

1 stop8h 51m

$410

KnoxvilleSan Juan

TYS - SJU

TYSSJU

Knoxville McGhee Tyson

Sun 1/25

2:37 pm-11:44 pm

1 stop8h 07m

San Juan Luis Munoz Marin Intl

Wed 1/28

7:30 am-3:21 pm

1 stop8h 51m

$415

Flights are sorted by cheapest round-trip flights 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 $423.

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 $528 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 $361 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

Direct flights

None
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.
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  • 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 20m 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 $334Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $353Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $365Free CancellationRating
7.2
11,035 reviews
Search American 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
Caguas
Humacao
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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