What airlines fly to Puerto Rico?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Puerto Rico from Knoxville according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 4 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Knoxville McGhee Tyson Airport to Puerto Rico were last updated today.

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

There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Puerto Rico as of September 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$111 Cheap Flights from Knoxville to Puerto Rico in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Puerto Rico

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:58 pm - 1:19 amTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

10h 21m1 stop Philadelphia

3:15 am - 7:15 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

17h 00m1 stop Philadelphia

$247Multiple Airlines

Fri, Dec 11 - Thu, Dec 17

1:58 pm - 1:19 amTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

10h 21m1 stop Philadelphia

8:46 pm - 7:15 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

23h 29m1 stop Philadelphia

$251Multiple Airlines

Fri, Dec 11 - Thu, Dec 17

1:57 pm - 10:52 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

7h 55m1 stop Philadelphia

6:00 am - 8:30 amSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

27h 30m1 stop Fort Lauderdale

$269Multiple Airlines

Mon, Jan 11 - Wed, Jan 20

1:00 pm - 9:55 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

7h 55m1 stop Orlando

7:40 am - 4:40 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

10h 00m1 stop Orlando

$420Southwest

Tue, Nov 10 - Tue, Nov 17

7:55 am - 9:55 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

13h 00m2 stops Baltimore/Washington Orlando

7:40 am - 4:40 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

10h 00m1 stop Orlando

$420Southwest

Tue, Nov 10 - Tue, Nov 17

4:00 pm - 11:50 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

6h 50m1 stop Atlanta Hartsfield-Jackson

2:15 pm - 11:46 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

10h 31m1 stop Atlanta Hartsfield-Jackson

$426Delta

Sun, Jan 10 - Wed, Jan 20

5:57 pm - 12:19 amTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

5h 22m1 stop Atlanta Hartsfield-Jackson

6:15 am - 3:05 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

8h 50m1 stop Atlanta Hartsfield-Jackson

$426Delta

Tue, Mar 9 - Tue, Mar 16

7:55 am - 9:55 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

13h 00m2 stops Baltimore/Washington Orlando

10:30 pm - 9:50 amSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

12h 20m2 stops Orlando Nashville Intl

$426Southwest

Wed, Nov 18 - Wed, Nov 25

8:14 am - 6:03 pmTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

8h 49m2 stops Charlotte Douglas Miami

6:53 pm - 11:59 pmSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

6h 06m1 stop Miami

$548American Airlines

Sun, Jan 17 - Fri, Jan 22

6:47 pm - 9:36 amTYS Knoxville McGhee Tyson-SJU San Juan Luis Munoz Marin Intl

13h 49m1 stop Miami

12:59 pm - 12:39 amSJU San Juan Luis Munoz Marin Intl-TYS Knoxville McGhee Tyson

12h 40m1 stop Miami

$557American Airlines

Thu, Dec 17 - Wed, Dec 23

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Delta flights from Knoxville to Puerto Rico

Our best Delta deals on Knoxville to Puerto Rico flight tickets

Delta

Oct 5

TYS4:40 pmKnoxville McGhee Tyson

5h 39m

1 stop

SJU10:19 pmSan Juan Luis Munoz Marin Intl

Nov 2

SJU8:15 amSan Juan Luis Munoz Marin Intl

8h 11m

1 stop

TYS3:26 pmKnoxville McGhee Tyson

$529

Delta

Oct 5

TYS12:23 pmKnoxville McGhee Tyson

9h 56m

1 stop

SJU10:19 pmSan Juan Luis Munoz Marin Intl

Nov 2

SJU8:15 amSan Juan Luis Munoz Marin Intl

10h 23m

1 stop

TYS5:38 pmKnoxville McGhee Tyson

$561

Southwest flights from Knoxville to Puerto Rico

Our best Southwest deals on Knoxville to Puerto Rico flight tickets

Southwest

Oct 11

TYS12:45 pmKnoxville McGhee Tyson

6h 50m

1 stop

SJU7:35 pmSan Juan Luis Munoz Marin Intl

Oct 14

SJU10:00 amSan Juan Luis Munoz Marin Intl

6h 40m

1 stop

TYS4:40 pmKnoxville McGhee Tyson

$596

Southwest

Oct 1

TYS8:20 amKnoxville McGhee Tyson

13h 35m

2 stops

SJU9:55 pmSan Juan Luis Munoz Marin Intl

Oct 3

SJU7:50 amSan Juan Luis Munoz Marin Intl

10h 00m

2 stops

TYS5:50 pmKnoxville McGhee Tyson

$642

Southwest

Oct 12

TYS8:20 amKnoxville McGhee Tyson

13h 35m

2 stops

SJU9:55 pmSan Juan Luis Munoz Marin Intl

Oct 16

SJU10:10 amSan Juan Luis Munoz Marin Intl

11h 25m

2 stops

TYS9:35 pmKnoxville McGhee Tyson

$684

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Fri 12/11

1:58 pm-1:19 am

1 stop10h 21m

San Juan Luis Munoz Marin Intl

Thu 12/17

3:15 am-7:15 pm

1 stop17h 00m

$247

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Fri 12/11

1:58 pm-1:19 am

1 stop10h 21m

San Juan Luis Munoz Marin Intl

Thu 12/17

8:46 pm-7:15 pm

1 stop23h 29m

$251

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Mon 1/11

1:57 pm-10:52 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Wed 1/20

6:00 am-8:30 am

1 stop27h 30m

$269

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Tue 11/10

1:00 pm-9:55 pm

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Tue 11/17

7:40 am-4:40 pm

1 stop10h 00m

$420

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Tue 11/10

7:55 am-9:55 pm

2 stops13h 00m

San Juan Luis Munoz Marin Intl

Tue 11/17

7:40 am-4:40 pm

1 stop10h 00m

$420

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Sun 1/10

4:00 pm-11:50 pm

1 stop6h 50m

San Juan Luis Munoz Marin Intl

Wed 1/20

2:15 pm-11:46 pm

1 stop10h 31m

$426

Quickest round-trip

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Tue 3/9

5:57 pm-12:19 am

1 stop5h 22m

San Juan Luis Munoz Marin Intl

Tue 3/16

6:15 am-3:05 pm

1 stop8h 50m

$426

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Wed 11/18

7:55 am-9:55 pm

2 stops13h 00m

San Juan Luis Munoz Marin Intl

Wed 11/25

10:30 pm-9:50 am

2 stops12h 20m

$426

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Sun 1/17

8:14 am-6:03 pm

2 stops8h 49m

San Juan Luis Munoz Marin Intl

Fri 1/22

6:53 pm-11:59 pm

1 stop6h 06m

$548

KnoxvilleSan Juan

TYS Knoxville McGhee Tyson - SJU San Juan Luis Munoz Marin Intl

TYSSJU

Knoxville McGhee Tyson

Thu 12/17

6:47 pm-9:36 am

1 stop13h 49m

San Juan Luis Munoz Marin Intl

Wed 12/23

12:59 pm-12:39 am

1 stop12h 40m

$557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in April, then you should wait until January to fly from Knoxville, when ticket prices are also cheap, with an average price of $491.

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

You are more likely to see cheaper flights to Puerto Rico from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $572 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Knoxville for as low as $365 on momondo.

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

You could potentially save up to 56% on your flight if you consider stops on a Knoxville to Puerto Rico flight.

Cheap Knoxville to Puerto Rico flight deals and tips

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

Best Price Found	$111
Fastest flight time	6h 35m
Direct flights	None

The best one-way flight to Puerto Rico from Knoxville in the past 72 hours is $111. The best round-trip flight deal from Knoxville to Puerto Rico found on momondo in the last 72 hours is $247.

The fastest flight from Knoxville to Puerto Rico takes 6h 35m

There are no direct flights from Knoxville to Puerto Rico. There are no popular flight routes from Knoxville to Puerto Rico.

Search flight deals

Frequently asked questions about flying from Knoxville to Puerto Rico

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Puerto Rico?
Prices for flights from Knoxville McGhee Tyson Airport to Puerto Rico were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Puerto Rico?
There are 3 operators available for flights from Knoxville McGhee Tyson Airport to Puerto Rico as of September 2026.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Puerto Rico?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Knoxville to Puerto Rico

Compare and see reviews for airlines that fly from Knoxville to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $365	Free Cancellation	Rating 7.0 12,098 reviews	Search American Airlines flights
Southwest	PriceFrom $376	Free Cancellation	Rating 8.0 4,200 reviews	Search Southwest flights
Delta	PriceFrom $384	Free Cancellation	Rating 7.8 8,606 reviews	Search Delta flights

Why use momondo?

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

Finding the right flight to Puerto Rico from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Puerto Rico from Knoxville with this policy.

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

momondo provides multiple filters to help you find the best flight to Puerto Rico 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 Puerto Rico right now. Can momondo alert me if prices change?

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

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Puerto Rico

Flights to San Juanfrom $114

Flights to Aguadillafrom $248

Flights to Poncefrom $242

Flights to Viequesfrom $517

Flights to Culebrafrom $393

Flights to Mayagüezfrom $316

Cheap flights from Knoxville to Puerto Rico from $111

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 Puerto Rico departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Knoxville to Puerto Rico

Our best Delta deals on Knoxville to Puerto Rico flight tickets

Southwest flights from Knoxville to Puerto Rico

Our best Southwest deals on Knoxville to Puerto Rico flight tickets

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

What is the cheapest month to fly to Puerto Rico?

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

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

What airlines fly to Puerto Rico?

Cheap Knoxville to Puerto Rico flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Knoxville to Puerto Rico

Best airlines flying from Knoxville to Puerto Rico

Compare and see reviews for airlines that fly from Knoxville to Puerto Rico with momondo

Why use momondo?

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo

Knoxville flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

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Explore popular destinations other users love

According to popular flight searches on momondo this year