$178 Cheap Flights from Helena (HLN) to Houston (IAH)

View $178 flight on Tue, Sep 23, 2025Opens in a new window

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

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Cheap Flights from Helena to Houston (HLN-IAH)

Prices were available within the past 7 days and start at $178 for one-way flights and $355 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
HLN
Helena
IAH
Houston
$355 Roundtrip, found 10 hours ago
$355
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Helena to Houston, returning Sat, Sep 27, priced at $355 found 10 hours ago
Delta
Sat, Oct 4 - Sat, Oct 11
HLN
Helena
IAH
Houston
$355 Roundtrip, found 3 days ago
$355
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Oct 4 from Helena to Houston, returning Sat, Oct 11, priced at $355 found 3 days ago
Delta
Wed, Oct 8 - Sat, Oct 11
HLN
Helena
IAH
Houston
$360 Roundtrip, found 3 days ago
$360
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 8 from Helena to Houston, returning Sat, Oct 11, priced at $360 found 3 days ago
Alaska Airlines
Wed, Sep 10 - Tue, Sep 16
HLN
Helena
IAH
Houston
$382 Roundtrip, found 3 days ago
$382
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Sep 10 from Helena to Houston, returning Tue, Sep 16, priced at $382 found 3 days ago
Delta
Wed, Sep 10 - Wed, Sep 17
HLN
Helena
IAH
Houston
$386 Roundtrip, found 5 days ago
$386
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Sep 10 from Helena to Houston, returning Wed, Sep 17, priced at $386 found 5 days ago
Hawaiian Airlines
Tue, Sep 9 - Mon, Sep 15
HLN
Helena
IAH
Houston
$388 Roundtrip, found 5 days ago
$388
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 9 from Helena to Houston, returning Mon, Sep 15, priced at $388 found 5 days ago
Hawaiian Airlines
Tue, Sep 9 - Sun, Sep 14
HLN
Helena
IAH
Houston
$392 Roundtrip, found 5 days ago
$392
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 9 from Helena to Houston, returning Sun, Sep 14, priced at $392 found 5 days ago
United
Mon, Oct 6 - Sat, Oct 11
HLN
Helena
IAH
Houston
$393 Roundtrip, found 3 days ago
$393
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 6 from Helena to Houston, returning Sat, Oct 11, priced at $393 found 3 days ago
United
Wed, Sep 10 - Wed, Sep 17
HLN
Helena
IAH
Houston
$398 Roundtrip, found 5 days ago
$398
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 10 from Helena to Houston, returning Wed, Sep 17, priced at $398 found 5 days ago
Delta
Wed, Oct 8 - Sun, Oct 26
HLN
Helena
IAH
Houston
$398 Roundtrip, found 4 days ago
$398
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Oct 8 from Helena to Houston, returning Sun, Oct 26, priced at $398 found 4 days ago

Alternative airports near Houston

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

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $727
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $727
Flights from Helena (HLN) to Houston (IAH)
Origin airport
Helena Regional
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$354
Distance
1454 mi

Helena to Houston Flights

The cheapest times to fly from Helena to Houston

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 Helena to Houston are during the month of September. You can find some of the cheapest flights from Helena to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Houston

Sunday is one of the best days to book for cheap flights from Helena to Houston: 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 Helena to Houston

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 Helena to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $178 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 Helena to Houston 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 Helena to Houston 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 Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH) cost?
Snag a cheap one-way flight from $178 or cheap return flight from $355 from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH)?
Traveling in September can help you save, as it's the cheapest month for flights between HLN and IAH. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HLN to IAH flight.
How many flights per day from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH)?
You'll have to take a flight with a layover if you're traveling from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from HLN to IAH?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH)?
Choose a flight from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time 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 Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH) last-minute?
Holding off until just before your departure to book your flight from HLN to IAH often results in higher prices. While it's possible to find some last-minute deals, there's no guarantee. Be flexible with your travel plans for the best chance of snagging a bargain.
Is it cheaper to book a HLN to IAH flight and hotel package?
Securing a HLN to IAH flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to George Bush Intercontinental Airport (IAH)?
If you booked your HLN to IAH flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket 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, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.