$170+ Cheap flights from San Antonio to Harlingen (SAT - HRL)
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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — HRL
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Harlingen 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 San Antonio to Harlingen
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Cheapest flights from San Antonio to HarlingenExplore the most affordable flight options available from San Antonio to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from San Antonio to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/195:58 pm -
1 stop3h 54m
Wed 10/215:05 am -
1 stop3h 33m
Deal found 9/20![United Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 11/67:15 pm -
1 stop3h 33m
Thu 11/127:10 am -
1 stop6h 06m
Deal found 9/19![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/19. 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.
Fri 11/65:55 pm -
2 stops5h 40m
Thu 11/125:50 am -
1 stop5h 00m
Deal found 9/19![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 9/22. 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.
Thu 10/228:45 pm -
1 stop2h 55m
Thu 10/296:30 pm -
1 stop5h 10m
Deal found 9/22![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 9/20. 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.
Mon 10/198:45 pm -
1 stop2h 55m
Wed 10/216:15 am -
2 stops6h 10m
Deal found 9/20![Southwest logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/77:15 pm -
1 stop3h 33m
Sat 11/285:05 am -
1 stop3h 24m
Deal found 9/22![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/217:15 pm -
1 stop3h 33m
Sun 11/227:10 am -
1 stop6h 06m
Deal found 9/21![United Airlines logo]()
$296
This Southwest deal was found by Cheapflights users on 9/21. 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 11/218:40 pm -
1 stop3h 05m
Sun 11/225:50 am -
2 stops5h 35m
Deal found 9/21![Southwest logo]()
$328
This Southwest deal was found by Cheapflights users on 9/20. 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 10/64:35 pm -
1 stop5h 25m
Sat 10/106:25 am -
1 stop2h 55m
Deal found 9/20![Southwest logo]()
$339
Best flights from San Antonio to HarlingenDiscover carefully curated flight deals from San Antonio to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from San Antonio to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/195:58 pm -
1 stop3h 54m
Wed 10/215:05 am -
1 stop3h 33m
Deal found 9/20![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 9/19. 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.
Fri 11/65:55 pm -
2 stops5h 40m
Thu 11/125:50 am -
1 stop5h 00m
Deal found 9/19![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Fri 11/67:15 pm -
1 stop3h 33m
Thu 11/127:10 am -
1 stop6h 06m
Deal found 9/19![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/20. 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.
Mon 10/198:45 pm -
1 stop2h 55m
Wed 10/216:15 am -
2 stops6h 10m
Deal found 9/20![Southwest logo]()
$284
This Southwest deal was found by Cheapflights users on 9/20. 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 10/65:50 am -
2 stops6h 35m
Sat 10/106:25 am -
1 stop2h 55m
Deal found 9/20![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 9/22. 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 10/711:55 am -
1 stop5h 40m
Sun 10/116:00 am -
1 stop3h 00m
Deal found 9/22![Southwest logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Thu 10/229:48 am -
1 stop6h 11m
Thu 10/297:10 am -
1 stop3h 36m
Deal found 9/22![United Airlines logo]()
$453
This Southwest deal was found by Cheapflights users on 9/21. 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.
Fri 10/98:45 pm -
1 stop2h 55m
Mon 10/126:30 pm -
1 stop5h 10m
Deal found 9/21![Southwest logo]()
$379
Last-minute flights from San Antonio to HarlingenDiscover last-minute flight deals from San Antonio to Harlingen. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Harlingen. Data last updated September 23, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/20. 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.
Thu 9/246:50 pm -
1 stop3h 50m
Mon 9/2810:55 am -
1 stop3h 50m
Deal found 9/20![Southwest logo]()
$369
This Southwest deal was found by Cheapflights users on 9/18. 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.
Fri 10/21:10 pm -
1 stop3h 35m
Tue 10/61:00 pm -
1 stop2h 50m
Deal found 9/18![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 9/20. 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 10/64:35 pm -
1 stop5h 25m
Sat 10/106:25 am -
1 stop2h 55m
Deal found 9/20![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 9/22. 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 10/75:50 am -
2 stops5h 40m
Sun 10/116:00 am -
1 stop3h 00m
Deal found 9/22![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/195:58 pm -
1 stop3h 54m
Wed 10/215:05 am -
1 stop3h 33m
Deal found 9/20![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 9/20. 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.
Mon 10/198:45 pm -
1 stop2h 55m
Wed 10/216:15 am -
2 stops6h 10m
Deal found 9/20![Southwest logo]()
$284
This Southwest deal was found by Cheapflights users on 9/22. 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.
Thu 10/228:45 pm -
1 stop2h 55m
Thu 10/296:30 pm -
1 stop5h 10m
Deal found 9/22![Southwest logo]()
$258
One-way flights from San Antonio to HarlingenSearch for one-way flight options from San Antonio to Harlingen. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from San Antonio to Harlingen. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 10/59:48 am -
1 stop6h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$170
This Southwest deal was found by Cheapflights users on 9/18. 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.
Mon 10/55:25 am -
2 stops6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Southwest logo]()
$175
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Mon 9/284:17 pm -
1 stop3h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$180
This Southwest deal was found by Cheapflights users on 9/21. 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.
Mon 9/2811:10 am -
2 stops6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Southwest logo]()
$185
This Southwest deal was found by Cheapflights users on 9/20. 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 9/307:35 am -
1 stop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Southwest logo]()
$231
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Mon 10/267:15 pm -
1 stop3h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$264
Find flight deals from San Antonio to Harlingen
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Harlingen (HRL). 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 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (United Airlines) |
One-way from | $170 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Harlingen 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 23, 2026.
Use the filters below to find and compare flights from San Antonio to Harlingen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 10/5
9:48 am-3:59 pm
1 stop6h 11m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$170
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 10/5
5:25 am-12:15 pm
2 stops6h 50m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$175
Quickest round-trip
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 9/28
4:17 pm-7:44 pm
1 stop3h 27m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 9/28
11:10 am-5:15 pm
2 stops6h 05m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$185
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Wed 9/30
7:35 am-1:00 pm
1 stop5h 25m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$231
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 10/19
5:58 pm-9:52 pm
1 stop3h 54m
Harlingen Valley Intl
Wed 10/21
5:05 am-8:38 am
1 stop3h 33m
$237
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Fri 11/6
7:15 pm-10:48 pm
1 stop3h 33m
Harlingen Valley Intl
Thu 11/12
7:10 am-1:16 pm
1 stop6h 06m
$247
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Fri 11/6
5:55 pm-11:35 pm
2 stops5h 40m
Harlingen Valley Intl
Thu 11/12
5:50 am-10:50 am
1 stop5h 00m
$252
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 10/26
7:15 pm-10:48 pm
1 stop3h 33m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$264
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Mon 10/19
8:45 pm-11:40 pm
1 stop2h 55m
Harlingen Valley Intl
Wed 10/21
6:15 am-12:25 pm
2 stops6h 10m
$284
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Harlingen
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 San Antonio to Harlingen in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Harlingen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Harlingen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Harlingen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Harlingen 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 San Antonio-Harlingen 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 San Antonio to Harlingen
Have a flexible travel schedule? Discover the best time to fly to Harlingen from San Antonio with our price prediction graph.
SAT-HRL
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 San Antonio to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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