$139+ Cheap flights from Knoxville (TYS) to Luis Munoz Marin Intl (SJU)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SJU
Mar 14 — Mar 211
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Luis Munoz Marin Intl
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Last-minute
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Cheapest flights from Knoxville to Luis Munoz Marin IntlExplore the most affordable flight options available from Knoxville to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
Explore the most affordable flight options available from Knoxville to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
TYS
- SJU
1 stop18h 25m
Multiple Airlines
Sat 3/77:00 am
SJU
- TYS
1 stop12h 08m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:30 am
TYS
- SJU
1 stop7h 25m
Multiple Airlines
Tue 3/247:54 pm
SJU
- TYS
1 stop14h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
TYS
- SJU
1 stop7h 30m
Multiple Airlines
Sun 3/85:30 am
SJU
- TYS
1 stop16h 41m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
TYS
- SJU
1 stop7h 30m
Multiple Airlines
Wed 3/116:30 am
SJU
- TYS
2 stops28h 14m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:36 pm
TYS
- SJU
2 stops43h 22m
Multiple Airlines
Sat 3/77:00 am
SJU
- TYS
1 stop12h 08m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:53 pm
TYS
- SJU
2 stops39h 01m
Multiple Airlines
Thu 3/58:05 pm
SJU
- TYS
1 stop23h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:58 am
TYS
- SJU
1 stop26h 51m
Multiple Airlines
Thu 3/195:30 am
SJU
- TYS
1 stop17h 21m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:56 pm
TYS
- SJU
1 stop20h 53m
Multiple Airlines
Sat 4/118:47 pm
SJU
- TYS
1 stop25h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$325
Best flights from Knoxville to Luis Munoz Marin IntlDiscover carefully curated flight deals from Knoxville to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
Discover carefully curated flight deals from Knoxville to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/188:30 am
TYS
- SJU
2 stops11h 20m
Multiple Airlines
Tue 3/247:54 pm
SJU
- TYS
1 stop14h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
TYS
- SJU
1 stop7h 40m
United Airlines
Tue 3/177:05 am
SJU
- TYS
1 stop7h 45m
United Airlines
Deal found 2/8![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:10 pm
TYS
- SJU
1 stop6h 05m
Delta
Sat 4/186:15 am
SJU
- TYS
1 stop10h 13m
Delta
Deal found 2/8![Delta logo]()
$406
This Southwest deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:10 am
TYS
- SJU
1 stop11h 35m
Southwest
Tue 7/2811:15 am
SJU
- TYS
2 stops10h 00m
Southwest
Deal found 2/10![Southwest logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:56 pm
TYS
- SJU
1 stop20h 53m
Multiple Airlines
Wed 4/293:19 pm
SJU
- TYS
2 stops24h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:40 am
TYS
- SJU
1 stop12h 25m
Southwest
Sat 5/235:15 am
SJU
- TYS
1 stop8h 05m
Southwest
Deal found 2/9![Southwest logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:25 pm
TYS
- SJU
2 stops16h 22m
Multiple Airlines
Tue 4/283:36 pm
SJU
- TYS
1 stop19h 00m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:30 am
TYS
- SJU
1 stop17h 28m
Multiple Airlines
Wed 3/1812:15 pm
SJU
- TYS
2 stops29h 07m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:24 pm
TYS
- SJU
1 stop13h 23m
Multiple Airlines
Mon 6/89:15 am
SJU
- TYS
1 stop14h 24m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2611:05 am
TYS
- SJU
2 stops24h 24m
Multiple Airlines
Tue 3/317:54 pm
SJU
- TYS
1 stop14h 42m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:15 pm
TYS
- SJU
1 stop8h 54m
Multiple Airlines
Sun 4/261:59 am
SJU
- TYS
2 stops15h 31m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$410
Last-minute flights from Knoxville to Luis Munoz Marin IntlDiscover last-minute flight deals from Knoxville to Luis Munoz Marin Intl. Data last updated February 12, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Luis Munoz Marin Intl. Data last updated February 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:36 pm
TYS
- SJU
2 stops43h 22m
Multiple Airlines
Sat 3/77:00 am
SJU
- TYS
1 stop12h 08m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
TYS
- SJU
1 stop18h 25m
Multiple Airlines
Sat 3/77:00 am
SJU
- TYS
1 stop12h 08m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:53 pm
TYS
- SJU
2 stops39h 01m
Multiple Airlines
Thu 3/58:05 pm
SJU
- TYS
1 stop23h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
TYS
- SJU
1 stop7h 30m
Multiple Airlines
Sun 3/85:30 am
SJU
- TYS
1 stop16h 41m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
TYS
- SJU
1 stop7h 30m
Multiple Airlines
Wed 3/116:30 am
SJU
- TYS
2 stops28h 14m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:58 am
TYS
- SJU
1 stop26h 51m
Multiple Airlines
Thu 3/195:30 am
SJU
- TYS
1 stop17h 21m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:30 am
TYS
- SJU
1 stop7h 25m
Multiple Airlines
Tue 3/247:54 pm
SJU
- TYS
1 stop14h 46m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$286
One-way flights from Knoxville to Luis Munoz Marin IntlSearch for one-way flight options from Knoxville to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
Search for one-way flight options from Knoxville to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:58 am
TYS
- SJU
1 stop9h 57m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:30 am
TYS
- SJU
1 stop13h 29m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$164
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:15 am
TYS
- SJU
2 stops9h 55m
Southwest
Deal found 2/11![Southwest logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:56 pm
TYS
- SJU
1 stop30h 09m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:25 pm
TYS
- SJU
2 stops32h 04m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$213
Find flight deals from Knoxville to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $275 (Kiwi.com) |
One-way from | $139 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $528 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Luis Munoz Marin Intl 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, Cheapflights users made 2,558,603 searches. Data last updated February 12, 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
Knoxville
Fly to
Luis Munoz Marin Intl
Route
Depart
Return
Price
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Wed 3/18
8:30 am-7:50 pm
2 stops11h 20m
San Juan Luis Munoz Marin Intl
Tue 3/24
7:54 pm-10:40 am
1 stop14h 46m
$331
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Tue 4/7
2:56 pm-11:49 am
1 stop20h 53m
San Juan Luis Munoz Marin Intl
Wed 4/29
3:19 pm-3:41 pm
2 stops24h 22m
$338
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Wed 4/22
4:25 pm-8:47 am
2 stops16h 22m
San Juan Luis Munoz Marin Intl
Tue 4/28
3:36 pm-10:36 am
1 stop19h 00m
$380
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Wed 3/11
8:30 am-1:58 am
1 stop17h 28m
San Juan Luis Munoz Marin Intl
Wed 3/18
12:15 pm-5:22 pm
2 stops29h 07m
$389
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Mon 6/1
7:24 pm-8:47 am
1 stop13h 23m
San Juan Luis Munoz Marin Intl
Mon 6/8
9:15 am-11:39 pm
1 stop14h 24m
$397
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Thu 3/26
11:05 am-11:29 am
2 stops24h 24m
San Juan Luis Munoz Marin Intl
Tue 3/31
7:54 pm-10:36 am
1 stop14h 42m
$401
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Tue 3/10
7:00 am-2:40 pm
1 stop7h 40m
San Juan Luis Munoz Marin Intl
Tue 3/17
7:05 am-2:50 pm
1 stop7h 45m
$406
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Fri 4/10
5:10 pm-11:15 pm
1 stop6h 05m
San Juan Luis Munoz Marin Intl
Sat 4/18
6:15 am-4:28 pm
1 stop10h 13m
$406
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Tue 7/21
8:10 am-7:45 pm
1 stop11h 35m
San Juan Luis Munoz Marin Intl
Tue 7/28
11:15 am-9:15 pm
2 stops10h 00m
$406
KnoxvilleSan Juan
TYS - SJU
TYSSJU
Knoxville McGhee Tyson
Fri 4/17
1:15 pm-10:09 pm
1 stop8h 54m
San Juan Luis Munoz Marin Intl
Sun 4/26
1:59 am-5:30 pm
2 stops15h 31m
$410
Showing 1-10 of 16 results
Compare providers for flights from Knoxville to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Luis Munoz Marin Intl in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Knoxville to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Knoxville with our price prediction graph.
TYS-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Knoxville to San Juan Luis Munoz Marin Intl Airport
How far ahead should I book a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Luis Munoz Marin Intl. Price data was last updated on February 6, 2026.
To ensure you get the cheapest price possible for a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Knoxville to San Juan Luis Munoz Marin Intl Airport (average of $108). Flying from Knoxville to San Juan Luis Munoz Marin Intl Airport in February is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Knoxville to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón
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Other flights to Luis Munoz Marin Intl
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 12, 2026.
Knoxville and Luis Munoz Marin Intl flights
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Top 4 airlines flying from Knoxville to Luis Munoz Marin Intl
Discover the top 4 airlines that operate flights from Knoxville to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$337 | Average$486 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$345 | Average$559 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$385 | Average$558 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$435 | Average$635 | FlexibilityNo cancel fee | On-time69% |