$136+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — HRL
Oct 4 — Oct 111
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 4, 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 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/314:19 pm -
1 stop3h 28m
Tue 11/35:25 pm -
1 stop5h 26m
Deal found 9/2![United Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 9/2. 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 10/317:05 am -
2 stops6h 00m
Tue 11/312:50 pm -
1 stop3h 05m
Deal found 9/2![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 8/31. 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 11/121:10 pm -
1 stop2h 55m
Fri 11/135:50 am -
1 stop5h 00m
Deal found 8/31![Southwest logo]()
$240
This Southwest deal was found by Cheapflights users on 9/1. 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 10/238:45 pm -
1 stop2h 55m
Fri 10/306:30 pm -
1 stop5h 10m
Deal found 9/1![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/79:48 am -
1 stop6h 11m
Sun 10/115:05 am -
1 stop3h 47m
Deal found 8/31![United Airlines logo]()
$259
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/85:58 pm -
1 stop3h 54m
Sun 10/115:05 am -
1 stop3h 47m
Deal found 8/31![United Airlines logo]()
$275
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/811:47 am -
1 stop4h 12m
Mon 10/125:05 am -
1 stop3h 33m
Deal found 9/3![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 9/3. 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
Sun 9/277:10 pm -
1 stop3h 50m
Deal found 9/3![Southwest logo]()
$281
This Southwest deal was found by Cheapflights users on 8/31. 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 8/31![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 9/3. 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 10/88:45 pm -
1 stop2h 55m
Mon 10/125:30 pm -
2 stops6h 10m
Deal found 9/3![Southwest logo]()
$296
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 4, 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 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/314:19 pm -
1 stop3h 28m
Tue 11/35:25 pm -
1 stop5h 26m
Deal found 9/2![United Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 9/2. 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 10/317:05 am -
2 stops6h 00m
Tue 11/312:50 pm -
1 stop3h 05m
Deal found 9/2![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 9/1. 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 10/238:45 pm -
1 stop2h 55m
Fri 10/306:30 pm -
1 stop5h 10m
Deal found 9/1![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/85:58 pm -
1 stop3h 54m
Sun 10/115:05 am -
1 stop3h 47m
Deal found 8/31![United Airlines logo]()
$275
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/811:47 am -
1 stop4h 12m
Mon 10/125:05 am -
1 stop3h 33m
Deal found 9/3![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 8/31. 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 8/31![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 8/30. 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 2/14:35 pm -
1 stop5h 15m
Mon 3/16:20 am -
1 stop5h 45m
Deal found 8/30![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/175:59 pm -
1 stop3h 53m
Mon 9/211:59 pm -
1 stop3h 44m
Deal found 9/2![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 9/2. 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 9/176:50 pm -
1 stop3h 50m
Mon 9/2111:55 am -
2 stops7h 05m
Deal found 9/2![Southwest logo]()
$344
Last-minute flights from San Antonio to HarlingenDiscover last-minute flight deals from San Antonio to Harlingen. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Harlingen. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/82:15 pm -
1 stop5h 24m
Sat 9/125:18 pm -
1 stop5h 26m
Deal found 9/2![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 9/3. 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
Sun 9/277:10 pm -
1 stop3h 50m
Deal found 9/3![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/79:48 am -
1 stop6h 11m
Sun 10/115:05 am -
1 stop3h 47m
Deal found 8/31![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 8/31. 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 8/31![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/31. 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 10/85:58 pm -
1 stop3h 54m
Sun 10/115:05 am -
1 stop3h 47m
Deal found 8/31![United Airlines logo]()
$275
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/811:47 am -
1 stop4h 12m
Mon 10/125:05 am -
1 stop3h 33m
Deal found 9/3![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 9/3. 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 10/88:45 pm -
1 stop2h 55m
Mon 10/125:30 pm -
2 stops6h 10m
Deal found 9/3![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 9/1. 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 10/238:45 pm -
1 stop2h 55m
Fri 10/306:30 pm -
1 stop5h 10m
Deal found 9/1![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/314:19 pm -
1 stop3h 28m
Tue 11/35:25 pm -
1 stop5h 26m
Deal found 9/2![United Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 9/2. 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 10/317:05 am -
2 stops6h 00m
Tue 11/312:50 pm -
1 stop3h 05m
Deal found 9/2![Southwest logo]()
$228
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 4, 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 4, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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 9/94:20 pm -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$136
This United Airlines deal was found by Cheapflights users on 9/1. 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 11/94:19 pm -
1 stop3h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$147
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/154:12 pm -
1 stop5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![United Airlines logo]()
$160
This Southwest deal was found by Cheapflights users on 8/31. 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 9/156:40 am -
2 stops4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Southwest logo]()
$165
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Sun 11/85:30 am -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$176
This Southwest deal was found by Cheapflights users on 9/1. 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 9/186:50 pm -
1 stop3h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$204
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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $223 (United Airlines) |
One-way from | $136 (Southwest) |
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 4, 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
Wed 9/9
4:20 pm-9:50 pm
1 stop5h 30m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$136
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Tue 9/15
4:12 pm-9:52 pm
1 stop5h 40m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Sun 11/8
5:30 am-10:50 am
1 stop5h 20m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$176
Quickest round-trip
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Fri 9/18
6:50 pm-10:40 pm
1 stop3h 50m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$204
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Sat 10/31
4:19 pm-7:47 pm
1 stop3h 28m
Harlingen Valley Intl
Tue 11/3
5:25 pm-10:51 pm
1 stop5h 26m
$223
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Sat 10/31
7:05 am-1:05 pm
2 stops6h 00m
Harlingen Valley Intl
Tue 11/3
12:50 pm-3:55 pm
1 stop3h 05m
$228
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Fri 10/23
8:45 pm-11:40 pm
1 stop2h 55m
Harlingen Valley Intl
Fri 10/30
6:30 pm-11:40 pm
1 stop5h 10m
$257
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Thu 10/8
5:58 pm-9:52 pm
1 stop3h 54m
Harlingen Valley Intl
Sun 10/11
5:05 am-8:52 am
1 stop3h 47m
$275
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Thu 10/8
11:47 am-3:59 pm
1 stop4h 12m
Harlingen Valley Intl
Mon 10/12
5:05 am-8:38 am
1 stop3h 33m
$276
San AntonioHarlingen
SAT San Antonio - HRL Harlingen Valley Intl
SATHRL
San Antonio
Wed 10/7
5:50 am-11:30 am
2 stops5h 40m
Harlingen Valley Intl
Sun 10/11
6:00 am-9:00 am
1 stop3h 00m
$293
Showing 1-10 of 13 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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