$337+ Cheap flights from Harlingen, TX (HRL) to Idaho
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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — BOI
Jan 15 — Jan 221
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Harlingen to Idaho 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 Idaho
Best flights from Harlingen to IdahoDiscover carefully curated flight deals from Harlingen to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.
Discover carefully curated flight deals from Harlingen to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2412:10 pmHRL - GEG
2 stops11h 12mUnited Airlines
Tue 1/276:53 amGEG - HRL
2 stops13h 06mUnited Airlines
Deal found 12/14![United Airlines logo]()
$337
Find flight deals from Harlingen to Idaho
Keep the following information in mind while searching for Harlingen to Idaho flight deals. Data was last updated December 16, 2025.
Round-trip from | $337 (United Airlines) |
|---|
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 December 16, 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
Sat 1/24
12:10 pm-9:22 pm
2 stops11h 12m
Spokane
Tue 1/27
6:53 am-9:59 pm
2 stops13h 06m
$337
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
What is the cheapest month to book a flight from Harlingen, Texas to Idaho?
Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Idaho (average of $168). Flying from Harlingen, Texas to Idaho in July is currently the most expensive (average of $678). 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.