$352 Cheap Flights from Houston (HOU) to Helena (HLN)

View $352 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from Houston to Helena (HOU-HLN)

Prices were available within the past 7 days and start at $352 for one-way flights and $3,383 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 28 - Tue, Nov 4
HOU
Houston
HLN
Helena
$3,383 Roundtrip, found 15 hours ago
$3,383
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Houston to Helena, returning Tue, Nov 4, priced at $3,383 found 15 hours ago

Alternative airports near Helena

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Helena Regional HLN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $491
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $491
Flights from Houston (HOU) to Helena (HLN)
Origin airport
William P. Hobby
Destination airport
Helena Regional
Roundtrip price
$3,383
Distance
1475 mi

Houston to Helena Flights

The cheapest times to fly from Houston to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Helena are during the month of October. You can find some of the cheapest flights from Houston to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Helena

Sunday is one of the best days to book for cheap flights from Houston to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $352 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN) cost?
Grab a cheap one-way flight from $352 or cheap return flight from $3,383 from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN)?
Planning your trip for October can help you save, as it's the cheapest month for flights between HOU and HLN. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest HOU to HLN flight.
How many flights per day from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN)?
There aren't any daily direct flights departing from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from HOU to HLN?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN)?
Book a flight from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN) last-minute?
Last-minute bookings from HOU to HLN are usually more expensive. To lock in the best prices, start looking for flights early. That being said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a HOU to HLN flight and hotel package?
You'll generally save money by securing a HOU to HLN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Helena Regional Airport (HLN)?
If you booked your HOU to HLN flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.