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$210+ Cheap flights from Harlingen, TX (HRL) to Idaho

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — BOI
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Find flight deals from Harlingen to Idaho

One-way flights from Harlingen to Idaho
Search for one-way flight options from Harlingen to Idaho. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/12. 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.
Sun 9/215:45 amHRL - GEG
1 stop7h 56mAmerican Airlines
Deal found 9/12$210
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/205:00 amHRL - GEG
2 stops12h 13mUnited Airlines
Deal found 9/12$231
This Southwest deal was found by Cheapflights users on 9/12. 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 9/206:15 amHRL - GEG
2 stops9h 00mSouthwest
Deal found 9/12$245
This American Airlines deal was found by Cheapflights users on 9/12. 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 9/205:45 amHRL - GEG
1 stop8h 00mAmerican Airlines
Deal found 9/12$348
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/212:05 pmHRL - GEG
2 stops11h 00mUnited Airlines
Deal found 9/12$368

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Idaho 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 September 15, 2025.
Use the filters below to find and compare flights from Harlingen to Idaho that are best for you.

Fly from

Harlingen

Fly to

Idaho

Route

Depart

Return

Price

HarlingenSpokane

HRL - GEG

HRLGEG

Harlingen Valley Intl

Sun 9/21

5:45 am-11:41 am

1 stop7h 56m

$210

HarlingenSpokane

HRL - GEG

HRLGEG

Harlingen Valley Intl

Sat 9/20

5:00 am-3:13 pm

2 stops12h 13m

$231

HarlingenSpokane

HRL - GEG

HRLGEG

Harlingen Valley Intl

Sat 9/20

6:15 am-1:15 pm

2 stops9h 00m

$245

HarlingenSpokane

HRL - GEG

HRLGEG

Harlingen Valley Intl

Sat 9/20

5:45 am-11:45 am

1 stop8h 00m

$360

HarlingenSpokane

HRL - GEG

HRLGEG

Harlingen Valley Intl

Sun 9/21

2:05 pm-11:05 pm

2 stops11h 00m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Harlingen to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Harlingen 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.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Idaho
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harlingen to Idaho?

    Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Idaho.

  • What are the cheapest airlines to fly from Harlingen, Texas to Idaho one-way?

    The cheapest airlines for a one-way flight from Harlingen, Texas to Idaho are American Airlines ($210), United Airlines ($231), and Southwest ($245).

  • Can I find deals for flights from Harlingen to Idaho that include hotel bookings?

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

  • How can I find direct flights from Harlingen to Idaho?

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

  • Can I find deals for business class flights from Harlingen to Idaho?

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

  • What is the cheapest month to book a flight from Harlingen, Texas to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Harlingen, Texas to Idaho (average of $314). Flying from Harlingen, Texas to Idaho in June is currently the most expensive (average of $398). 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.

See more FAQs

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Alternative routes for Harlingen to Idaho

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