$192 Cheap Flights from San Antonio (SAT) to Helena (HLN)

View $192 flight on Sun, Feb 15, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from San Antonio to Helena (SAT-HLN)

Prices were available within the past 7 days and start at $192 for one-way flights and $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Nov 3 - Sat, Nov 8
SAT
San Antonio
HLN
Helena
$362 Roundtrip, found 1 day ago
$362
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Nov 3 from San Antonio to Helena, returning Sat, Nov 8, priced at $362 found 1 day ago
Hawaiian Airlines
Sat, Nov 1 - Tue, Nov 18
SAT
San Antonio
HLN
Helena
$362 Roundtrip, found 11 hours ago
$362
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sat, Nov 1 from San Antonio to Helena, returning Tue, Nov 18, priced at $362 found 11 hours ago
Hawaiian Airlines
Sun, Nov 2 - Tue, Nov 18
SAT
San Antonio
HLN
Helena
$372 Roundtrip, found 11 hours ago
$372
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sun, Nov 2 from San Antonio to Helena, returning Tue, Nov 18, priced at $372 found 11 hours ago
Hawaiian Airlines
Sun, Nov 2 - Sun, Nov 16
SAT
San Antonio
HLN
Helena
$382 Roundtrip, found 11 hours ago
$382
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sun, Nov 2 from San Antonio to Helena, returning Sun, Nov 16, priced at $382 found 11 hours ago
Delta
Sat, Nov 1 - Thu, Nov 20
SAT
San Antonio
HLN
Helena
$383 Roundtrip, found 11 hours ago
$383
Roundtrip
found 11 hours ago
Select Delta flight, departing Sat, Nov 1 from San Antonio to Helena, returning Thu, Nov 20, priced at $383 found 11 hours ago
United
Mon, Nov 3 - Sat, Nov 8
SAT
San Antonio
HLN
Helena
$383 Roundtrip, found 1 day ago
$383
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 3 from San Antonio to Helena, returning Sat, Nov 8, priced at $383 found 1 day ago
United
Tue, Oct 28 - Sun, Nov 2
SAT
San Antonio
HLN
Helena
$386 Roundtrip, found 5 days ago
$386
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 28 from San Antonio to Helena, returning Sun, Nov 2, priced at $386 found 5 days ago
Delta
Mon, Nov 24 - Tue, Dec 9
SAT
San Antonio
HLN
Helena
$388 Roundtrip, found 11 hours ago
$388
Roundtrip
found 11 hours ago
Select Delta flight, departing Mon, Nov 24 from San Antonio to Helena, returning Tue, Dec 9, priced at $388 found 11 hours ago
Delta
Mon, Nov 3 - Sat, Nov 8
SAT
San Antonio
HLN
Helena
$389 Roundtrip, found 1 day ago
$389
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 3 from San Antonio to Helena, returning Sat, Nov 8, priced at $389 found 1 day ago
Alaska Airlines
Tue, Oct 28 - Sun, Nov 2
SAT
San Antonio
HLN
Helena
$392 Roundtrip, found 5 days ago
$392
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from San Antonio to Helena, returning Sun, Nov 2, priced at $392 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 $466
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $466
Flights from San Antonio (SAT) to Helena (HLN)
Origin airport
San Antonio Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$362
Distance
1385 mi

San Antonio to Helena Flights

The cheapest times to fly from San Antonio 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 San Antonio to Helena are during the month of November. You can find some of the cheapest flights from San Antonio to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Helena

Sunday is one of the best days to book for cheap flights from San Antonio 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 San Antonio 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 San Antonio to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $192 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 San Antonio 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 San Antonio 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 San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN) cost?
Get a cheap one-way flight from $192 or cheap return flight from $362 from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN)?
Planning your getaway for November is a great way to save, as it's the cheapest month for flights between SAT and HLN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN)?
To find the cheapest airline that'll fly you from SAT to HLN, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN)?
There aren't any daily nonstop flights departing from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from SAT to HLN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN)?
To avoid possible delays on the San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN) route, fly before 3 PM. Departures after this time have a 22% higher chance of being 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 San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN) last-minute?
Last-minute fares from SAT to HLN are usually more expensive. To secure the lowest rates, start searching for flights early. That said, if you're flexible with your travel plans, you may find a cheap fare just before your departure.
Is it cheaper to book a SAT to HLN flight and hotel package?
Opting for a SAT to HLN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Helena Regional Airport (HLN)?
If you booked your SAT to HLN flight within 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 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'd like more information.

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*Available to One Key members.