$166 Cheap Flights from Houston (IAH) to Helena (HLN)

View $166 flight on Wed, Mar 11, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Houston to Helena (IAH-HLN)

Prices were available within the past 7 days and start at $166 for one-way flights and $332 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Feb 11 - Tue, Feb 17
IAH
Houston
HLN
Helena
$332 Roundtrip, found 5 hours ago
$332
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Houston to Helena, returning Tue, Feb 17, priced at $332 found 5 hours ago
Delta
Wed, Mar 4 - Tue, Mar 10
IAH
Houston
HLN
Helena
$366 Roundtrip, found 5 days ago
$366
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Mar 4 from Houston to Helena, returning Tue, Mar 10, priced at $366 found 5 days ago
Hawaiian Airlines
Tue, Mar 3 - Fri, Mar 6
IAH
Houston
HLN
Helena
$367 Roundtrip, found 5 days ago
$367
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Mar 3 from Houston to Helena, returning Fri, Mar 6, priced at $367 found 5 days ago
Delta
Tue, Jan 27 - Fri, Feb 13
IAH
Houston
HLN
Helena
$372 Roundtrip, found 5 days ago
$372
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jan 27 from Houston to Helena, returning Fri, Feb 13, priced at $372 found 5 days ago
Delta
Mon, Jan 12 - Tue, Jan 27
IAH
Houston
HLN
Helena
$379 Roundtrip, found 5 days ago
$379
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Jan 12 from Houston to Helena, returning Tue, Jan 27, priced at $379 found 5 days ago
Alaska Airlines
Mon, Mar 9 - Wed, Mar 11
IAH
Houston
HLN
Helena
$381 Roundtrip, found 4 days ago
$381
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Mar 9 from Houston to Helena, returning Wed, Mar 11, priced at $381 found 4 days ago
Alaska Airlines
Wed, Jan 21 - Sat, Jan 24
IAH
Houston
HLN
Helena
$383 Roundtrip, found 3 days ago
$383
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Houston to Helena, returning Sat, Jan 24, priced at $383 found 3 days ago
Delta
Mon, Mar 9 - Wed, Mar 11
IAH
Houston
HLN
Helena
$386 Roundtrip, found 4 days ago
$386
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Mar 9 from Houston to Helena, returning Wed, Mar 11, priced at $386 found 4 days ago
Delta
Wed, Jan 7 - Mon, Jan 26
IAH
Houston
HLN
Helena
$390 Roundtrip, found 5 days ago
$390
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Jan 7 from Houston to Helena, returning Mon, Jan 26, priced at $390 found 5 days ago
United
Wed, Dec 24 - Tue, Jan 6
IAH
Houston
HLN
Helena
$413 Roundtrip, found 5 days ago
$413
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 24 from Houston to Helena, returning Tue, Jan 6, priced at $413 found 5 days 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 $739
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $739
Flights from Houston (IAH) to Helena (HLN)
Origin airport
George Bush Intercontinental
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$332
Distance
1454 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 February. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $166 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 George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN) cost?
Secure a cheap one-way flight from $166 or cheap return flight from $332 from George Bush Intercontinental Airport (IAH) 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 George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN)?
Planning your trip for February is a great way to save, as it's the cheapest month for flights between IAH and HLN. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAH to HLN flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN)?
You'll have to book a flight with a layover when traveling from George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from IAH to HLN?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, season 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 George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN)?
To avoid potential delays on the George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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 George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN) last-minute?
Last-minute fares from IAH to HLN are usually more expensive. To secure the lowest rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book an IAH to HLN flight and hotel package?
You can save money by booking an IAH to HLN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Helena Regional Airport (HLN)?
If you booked your IAH to HLN flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.