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Harlingen

$455+ Cheap flights from San Luis Potosí, Mexico (SLP) to Harlingen, TX (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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
SLP — HRL
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find flight deals from San Luis Potosí to Harlingen

Best flights from San Luis Potosí to Harlingen
Discover carefully curated flight deals from San Luis Potosí to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated octubre 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/25. 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.
vie. 3/276:45 amSLP - HRL
1 stop11h 44mUnited Airlines
mar. 3/317:27 amHRL - SLP
1 stop4h 41mUnited Airlines
Deal found 10/25$455
This Delta deal was found by Cheapflights users on 10/25. 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.
vie. 3/278:28 amSLP - HRL
2 stops29h 01mDelta
mar. 3/313:00 pmHRL - SLP
2 stops26h 11mDelta
Deal found 10/25$2,080

Cheap flight deals from San Luis Potosí to Harlingen

Discover tips and strategies to find the most affordable flight options for your journey from San Luis Potosí (SLP) 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 octubre 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$455
(United Airlines)
Provider with most accurate pricing for San Luis Potosi-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Luis Potosi-Harlingen Valley Intl flights.
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From San Luis Potosi to Harlingen Valley Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Luis Potosí 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 2,558,603 searches. Data last updated octubre 28, 2025.
Use the filters below to find and compare flights from San Luis Potosí to Harlingen that are best for you.

Fly from

San Luis Potosí

Fly to

Harlingen

Route

Depart

Return

Price

San Luis PotosíHarlingen

SLP - HRL

SLPHRL

San Luis Potosi

vie. 3/27

6:45 am-7:29 pm

1 stop11h 44m

Harlingen Valley Intl

mar. 3/31

7:27 am-11:08 am

1 stop4h 41m

$455

San Luis PotosíHarlingen

SLP - HRL

SLPHRL

San Luis Potosi

vie. 3/27

8:28 am-2:29 pm

2 stops29h 01m

Harlingen Valley Intl

mar. 3/31

3:00 pm-4:11 pm

2 stops26h 11m

$2,080

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

  • Most accurate provider: When it comes to deals on San Luis Potosí-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Luis Potosí-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Luis Potosí-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Luis Potosí-Harlingen, Texas 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 Luis Potosí-Harlingen, Texas 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 Luis Potosí to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from San Luis Potosí with our price prediction graph.
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 Luis Potosí to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Luis Potosí to Harlingen, Texas?

    For as low as $455, United Airlines can have you in Harlingen, Texas from San Luis Potosí in 11h 44m. The distance from San Luis Potosí to Harlingen, Texas is about 343 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from San Luis Potosí to Harlingen that include hotel bookings?

    Yes. In addition to deals on San Luis Potosí to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Luis Potosí to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Luis Potosí to Harlingen.

  • Can I find deals for business class flights from San Luis Potosí to Harlingen?

    Yes. Cheapflights offers flight deals from San Luis Potosí to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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