$191+ Cheap flights from Harlingen to Knoxville (HRL - TYS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — TYS
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Harlingen to Knoxville with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Harlingen to Knoxville
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Best
Last-minute
One-way
Cheapest flights from Harlingen to KnoxvilleExplore the most affordable flight options available from Harlingen to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Harlingen to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:28 pm -
1 stop4h 54m
Wed 9/306:00 am -
1 stop4h 58m
Deal found 9/11![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:05 am -
1 stop5h 12m
Wed 9/306:00 am -
2 stops10h 59m
Deal found 9/11![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 9/11. 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.
Sat 9/266:05 am -
2 stops6h 10m
Wed 9/3012:45 pm -
2 stops8h 30m
Deal found 9/11![Southwest logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:40 am -
1 stop7h 25m
Sun 11/87:30 pm -
1 stop19h 26m
Deal found 9/11![American Airlines logo]()
$678
This Southwest deal was found by Cheapflights users on 9/14. 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 10/141:00 pm -
2 stops7h 05m
Sun 10/185:55 pm -
2 stops6h 50m
Deal found 9/14![Southwest logo]()
$730
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 am -
1 stop7h 17m
Sun 10/186:00 am -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$888
Best flights from Harlingen to KnoxvilleDiscover carefully curated flight deals from Harlingen to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Harlingen to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:05 am -
1 stop5h 12m
Wed 9/306:00 am -
2 stops10h 59m
Deal found 9/11![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 9/11. 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.
Sat 9/266:05 am -
2 stops6h 10m
Wed 9/3012:45 pm -
2 stops8h 30m
Deal found 9/11![Southwest logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:44 am -
2 stops11h 04m
Sun 11/87:30 pm -
1 stop19h 26m
Deal found 9/11![American Airlines logo]()
$683
This Southwest deal was found by Cheapflights users on 9/14. 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 10/141:00 pm -
2 stops7h 05m
Sun 10/185:55 pm -
2 stops6h 50m
Deal found 9/14![Southwest logo]()
$730
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 am -
1 stop7h 17m
Sun 10/186:00 am -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$888
Last-minute flights from Harlingen to KnoxvilleDiscover last-minute flight deals from Harlingen to Knoxville. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Knoxville. Data last updated September 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:28 pm -
1 stop4h 54m
Wed 9/306:00 am -
1 stop4h 58m
Deal found 9/11![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:05 am -
1 stop5h 12m
Wed 9/306:00 am -
2 stops10h 59m
Deal found 9/11![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 9/11. 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.
Sat 9/266:05 am -
2 stops6h 10m
Wed 9/3012:45 pm -
2 stops8h 30m
Deal found 9/11![Southwest logo]()
$409
This Southwest deal was found by Cheapflights users on 9/14. 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 10/141:00 pm -
2 stops7h 05m
Sun 10/185:55 pm -
2 stops6h 50m
Deal found 9/14![Southwest logo]()
$730
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 am -
1 stop7h 17m
Sun 10/186:00 am -
1 stop5h 08m
Deal found 9/14![American Airlines logo]()
$888
One-way flights from Harlingen to KnoxvilleSearch for one-way flight options from Harlingen to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Harlingen to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This Southwest deal was found by Cheapflights users on 9/10. 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.
Wed 10/141:00 pm -
2 stops7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$191
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 am -
1 stop7h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$273
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:00 pm -
1 stop6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$304
Find flight deals from Harlingen to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Knoxville (TYS). 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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (American Airlines) |
One-way from | $191 (Southwest) |
Cheapflights Fare Finder
Customize your flight search to find flights from Harlingen 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, Cheapflights users made 7,457,451 searches. Data last updated September 14, 2026.
Use the filters below to find and compare flights from Harlingen to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Wed 10/14
5:50 am-2:07 pm
1 stop7h 17m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$273
Quickest round-trip
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Wed 10/14
2:00 pm-9:55 pm
1 stop6h 55m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$304
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Sat 9/26
5:05 am-11:17 am
1 stop5h 12m
Knoxville McGhee Tyson
Wed 9/30
6:00 am-3:59 pm
2 stops10h 59m
$408
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Sat 9/26
6:05 am-1:15 pm
2 stops6h 10m
Knoxville McGhee Tyson
Wed 9/30
12:45 pm-8:15 pm
2 stops8h 30m
$409
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Mon 11/2
10:44 am-10:48 pm
2 stops11h 04m
Knoxville McGhee Tyson
Sun 11/8
7:30 pm-1:56 pm
1 stop19h 26m
$683
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Wed 10/14
1:00 pm-9:05 pm
2 stops7h 05m
Knoxville McGhee Tyson
Sun 10/18
5:55 pm-11:45 pm
2 stops6h 50m
$730
HarlingenKnoxville
HRL Harlingen Valley Intl - TYS Knoxville McGhee Tyson
HRLTYS
Harlingen Valley Intl
Wed 10/14
5:50 am-2:07 pm
1 stop7h 17m
Knoxville McGhee Tyson
Sun 10/18
6:00 am-10:08 am
1 stop5h 08m
$888
Sorted by cheapest first
Compare providers for flights from Harlingen to Knoxville
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 Harlingen to Knoxville in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Harlingen-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harlingen-Knoxville 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 Harlingen-Knoxville 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 Harlingen to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Harlingen with our price prediction graph.
HRL-TYS
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.
Related info for your journey
Find useful and relevant information for your journey from Harlingen to Knoxville. 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 Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
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