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Cheap flights from Puerto Rico to Knoxville from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to Knoxville departing on 5/8. 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 Puerto Rico to Knoxville

Recent round-trip flight deals from Puerto Rico to Knoxville

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 10:20 pm
SJU
-
TYS
15h 20m
1 stop
Multiple Airlines Logo
11:27 am - 5:14 pm
TYS
-
SJU
29h 47m
2 stops
$231Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
1:30 am - 8:29 pm
SJU
-
TYS
18h 59m
1 stop
Multiple Airlines Logo
5:05 pm - 5:14 pm
TYS
-
SJU
24h 09m
2 stops
$291Multiple Airlines
Wed, May 27 - Tue, Jun 2
Multiple Airlines Logo
7:00 am - 10:01 pm
SJU
-
TYS
15h 01m
1 stop
Multiple Airlines Logo
9:19 pm - 5:14 pm
TYS
-
SJU
19h 55m
2 stops
$298Multiple Airlines
Fri, May 22 - Sun, Jun 7
Multiple Airlines Logo
7:00 am - 10:01 pm
SJU
-
TYS
15h 01m
1 stop
Multiple Airlines Logo
9:19 pm - 6:59 pm
TYS
-
SJU
21h 40m
1 stop
$303Multiple Airlines
Fri, May 22 - Sun, Jun 7
Multiple Airlines Logo
7:00 am - 10:20 pm
SJU
-
TYS
15h 20m
1 stop
Multiple Airlines Logo
9:40 pm - 5:16 pm
TYS
-
SJU
19h 36m
1 stop
$306Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
6:30 am - 8:56 pm
SJU
-
TYS
14h 26m
1 stop
Multiple Airlines Logo
12:49 pm - 2:46 am
TYS
-
SJU
13h 57m
2 stops
$314Multiple Airlines
Thu, May 21 - Mon, Jun 8
Multiple Airlines Logo
6:41 pm - 8:50 pm
SJU
-
TYS
26h 09m
1 stop
Multiple Airlines Logo
4:25 pm - 3:49 pm
TYS
-
SJU
47h 24m
2 stops
$323Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
8:59 am - 5:30 pm
SJU
-
TYS
8h 31m
1 stop
Multiple Airlines Logo
11:56 am - 5:16 pm
TYS
-
SJU
29h 20m
1 stop
$331Multiple Airlines
Fri, May 8 - Sat, May 9
Multiple Airlines Logo
5:15 pm - 8:50 pm
SJU
-
TYS
27h 35m
2 stops
Multiple Airlines Logo
9:40 pm - 5:16 pm
TYS
-
SJU
19h 36m
1 stop
$338Multiple Airlines
Wed, May 13 - Sun, May 17
Multiple Airlines Logo
6:41 pm - 8:50 pm
SJU
-
TYS
26h 09m
1 stop
Multiple Airlines Logo
4:25 pm - 5:26 pm
TYS
-
SJU
25h 01m
1 stop
$340Multiple Airlines
Wed, May 6 - Wed, May 13

American Airlines flights from Puerto Rico to Knoxville

Our best American Airlines deals on Puerto Rico to Knoxville flight tickets
American Airlines
Aug 28
SJU1:38 pmSan Juan Luis Munoz Marin Intl
10h 21m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
Aug 30
TYS5:00 amKnoxville McGhee Tyson
9h 38m
2 stops
SJU2:38 pmSan Juan Luis Munoz Marin Intl
$436
American Airlines
Jul 21
SJU10:33 amSan Juan Luis Munoz Marin Intl
13h 26m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
Jul 30
TYS6:00 amKnoxville McGhee Tyson
16h 00m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
$441
American Airlines
Jun 3
SJU6:00 amSan Juan Luis Munoz Marin Intl
9h 15m
2 stops
TYS3:15 pmKnoxville McGhee Tyson
Jun 11
TYS6:00 amKnoxville McGhee Tyson
12h 25m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
$456

United Airlines flights from Puerto Rico to Knoxville

Our best United Airlines deals on Puerto Rico to Knoxville flight tickets
United Airlines
May 6
SJU7:40 amSan Juan Luis Munoz Marin Intl
9h 28m
1 stop
TYS5:08 pmKnoxville McGhee Tyson
May 13
TYS7:00 amKnoxville McGhee Tyson
7h 44m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
$534
United Airlines
May 7
SJU7:20 amSan Juan Luis Munoz Marin Intl
7h 14m
1 stop
TYS2:34 pmKnoxville McGhee Tyson
May 11
TYS7:05 amKnoxville McGhee Tyson
8h 37m
1 stop
SJU3:42 pmSan Juan Luis Munoz Marin Intl
$550
United Airlines
May 1
SJU3:56 pmSan Juan Luis Munoz Marin Intl
24h 58m
1 stop
TYS4:54 pmKnoxville McGhee Tyson
May 5
TYS7:00 amKnoxville McGhee Tyson
13h 34m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
$642

momondo Fare Finder

 
Customize your flight search to find flights from Puerto Rico to Knoxville 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 April 18, 2026.
Use the filters below to find and compare flights from Puerto Rico to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Thu 5/7

7:00 am-10:20 pm

1 stop15h 20m

Knoxville McGhee Tyson

Thu 5/14

11:27 am-5:14 pm

2 stops29h 47m

$231

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Wed 5/27

1:30 am-8:29 pm

1 stop18h 59m

Knoxville McGhee Tyson

Tue 6/2

5:05 pm-5:14 pm

2 stops24h 09m

$291

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Fri 5/22

7:00 am-10:01 pm

1 stop15h 01m

Knoxville McGhee Tyson

Sun 6/7

9:19 pm-5:14 pm

2 stops19h 55m

$298

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Fri 5/22

7:00 am-10:01 pm

1 stop15h 01m

Knoxville McGhee Tyson

Sun 6/7

9:19 pm-6:59 pm

1 stop21h 40m

$303

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Thu 5/7

7:00 am-10:20 pm

1 stop15h 20m

Knoxville McGhee Tyson

Thu 5/14

9:40 pm-5:16 pm

1 stop19h 36m

$306
Quickest round-trip

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Thu 5/21

6:30 am-8:56 pm

1 stop14h 26m

Knoxville McGhee Tyson

Mon 6/8

12:49 pm-2:46 am

2 stops13h 57m

$314

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Wed 5/6

6:41 pm-8:50 pm

1 stop26h 09m

Knoxville McGhee Tyson

Wed 5/13

4:25 pm-3:49 pm

2 stops47h 24m

$323

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Fri 5/8

8:59 am-5:30 pm

1 stop8h 31m

Knoxville McGhee Tyson

Sat 5/9

11:56 am-5:16 pm

1 stop29h 20m

$331

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Wed 5/13

5:15 pm-8:50 pm

2 stops27h 35m

Knoxville McGhee Tyson

Sun 5/17

9:40 pm-5:16 pm

1 stop19h 36m

$338

San JuanKnoxville

SJU - TYS

SJUTYS

San Juan Luis Munoz Marin Intl

Wed 5/6

6:41 pm-8:50 pm

1 stop26h 09m

Knoxville McGhee Tyson

Wed 5/13

4:25 pm-5:26 pm

1 stop25h 01m

$340

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 Knoxville from

How to get the cheapest flight ticket from Puerto Rico to Knoxville

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 cheapest month to fly to Knoxville?

The month of February is, on average, the cheapest month to fly to Knoxville from Puerto Rico, with most prices found around $415. If you aren’t able to travel during the month of February, then book flights to Knoxville from Puerto Rico during January instead. Flights to Knoxville in January, while not as cheap as those in February, still average around $421.

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $510 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Puerto Rico for as low as $411 on momondo.

Can stopping save me money on Puerto Rico to Knoxville flights?

You could potentially save up to 9% on your flight if you consider stops on a Puerto Rico to Knoxville flight.

Cheap Puerto Rico to Knoxville flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Puerto Rico to Knoxville

Fastest flight time

7h 07m

Direct flights

None
The fastest flight from Puerto Rico to Knoxville takes 7h 07m
There are no direct flights from Puerto Rico to Knoxville. There are no popular flight routes from Puerto Rico to Knoxville.
Search flight deals

Frequently asked questions about flying from Puerto Rico to Knoxville

  • When did momondo last update prices for flights from Puerto Rico to Knoxville McGhee Tyson Airport?

    Prices for flights from Puerto Rico to Knoxville McGhee Tyson Airport are updated daily.

  • How many operators does momondo search for flights from Puerto Rico to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Puerto Rico to Knoxville McGhee Tyson 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 Puerto Rico to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson 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 Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Puerto Rico to Knoxville

Compare and see reviews for airlines that fly from Puerto Rico to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $390Free CancellationRating
7.1
11,604 reviews
Search American Airlines flights
DeltaPriceFrom $395Free CancellationRating
7.9
8,424 reviews
Search Delta flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Alcoa
Murphy
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from Puerto Rico to Knoxville?

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 Puerto Rico to Knoxville for you.

Can I find flights from Puerto Rico to Knoxville with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Puerto Rico to Knoxville flights to just show those with flexible booking policies.

How can momondo help me find flights from Puerto Rico to Knoxville?

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

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

Of course. momondo tracks the price of Puerto Rico to Knoxville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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