HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helena

$442+ Cheap flights from San Antonio to Helena (SAT - HLN)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — HLN
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Helena 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 San Antonio to Helena

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$442
(Alaska Airlines)
From San Antonio to Helena
Search Deals

Find flight deals from San Antonio to Helena

Cheapest flights from San Antonio to Helena
Explore the most affordable flight options available from San Antonio to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:57 pmSAT - HLN
1 stop20h 24mAlaska Airlines
Mon 10/66:18 pmHLN - SAT
1 stop28h 46mAlaska Airlines
Deal found 8/19$442
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:57 pmSAT - HLN
1 stop20h 24mAlaska Airlines
Sun 10/56:18 pmHLN - SAT
1 stop23h 38mAlaska Airlines
Deal found 8/19$453
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 10/14:39 pmSAT - HLN
1 stop5h 21mUnited Airlines
Mon 10/65:18 pmHLN - SAT
1 stop22h 32mUnited Airlines
Deal found 8/19$510
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 9/251:41 pmSAT - HLN
1 stop8h 19mUnited Airlines
Sun 9/285:18 pmHLN - SAT
1 stop22h 39mUnited Airlines
Deal found 8/21$660

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Helena 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 August 21, 2025.
Use the filters below to find and compare flights from San Antonio to Helena that are best for you.

Fly from

San Antonio

Fly to

Helena

Route

Depart

Return

Price

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 10/2

7:57 pm-3:21 pm

1 stop20h 24m

Helena

Mon 10/6

6:18 pm-12:04 am

1 stop28h 46m

$442

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 10/2

7:57 pm-3:21 pm

1 stop20h 24m

Helena

Sun 10/5

6:18 pm-6:56 pm

1 stop23h 38m

$453

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Wed 10/1

4:39 pm-9:00 pm

1 stop5h 21m

Helena

Mon 10/6

5:18 pm-4:50 pm

1 stop22h 32m

$510

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 9/25

1:41 pm-9:00 pm

1 stop8h 19m

Helena

Sun 9/28

5:18 pm-4:57 pm

1 stop22h 39m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Best time to book a flight from San Antonio to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from San Antonio 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 San Antonio to Helena

What is the cheapest month to book a flight from San Antonio to Helena?

Currently, February is the cheapest month in which you can book a flight from San Antonio to Helena (average of $353). Flying from San Antonio to Helena in May is currently the most expensive (average of $517). 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.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Antonio to Helena?

    A quick flight from San Antonio to Helena can take about 5h 21m. Alaska Airlines provides one of the quickest options available for as low as $510. The distance from San Antonio to Helena is about 1385 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from San Antonio to Helena that include hotel bookings?

    Yes. In addition to deals on San Antonio to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Helena.

  • Can I find deals for business class flights from San Antonio to Helena?

    Yes. Cheapflights offers flight deals from San Antonio to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Helena?

    Currently, February is the cheapest month in which you can book a flight from San Antonio to Helena (average of $353). Flying from San Antonio to Helena in May is currently the most expensive (average of $517). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Helena

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Bozeman flights
George Bush Intcntl to Bozeman flights
Dallas/Fort Worth to Kalispell flights
Dallas/Fort Worth to Bozeman flights
Dallas/Fort Worth to Missoula flights
Austin to Bozeman flights
Hobby to Kalispell flights
Austin to Kalispell flights
Dallas/Fort Worth to Billings flights
George Bush Intcntl to Kalispell flights
Love Field to Bozeman flights
San Antonio to Bozeman flights
Austin to Billings flights
Hobby to Billings flights
Austin to Missoula flights
San Antonio to Kalispell flights
Austin to Helena flights
Hobby to Missoula flights
Dallas/Fort Worth to Great Falls flights
George Bush Intcntl to Billings flights
Dallas/Fort Worth to West Yellowstone flights
San Antonio to Missoula flights
Hobby to Great Falls flights
George Bush Intcntl to Missoula flights
George Bush Intcntl to Great Falls flights
Dallas/Fort Worth to Helena flights
Hobby to West Yellowstone flights
George Bush Intcntl to West Yellowstone flights
San Antonio to Great Falls flights
Dallas/Fort Worth to Butte flights
Hobby to Cody flights
Dallas/Fort Worth to Cody flights
George Bush Intcntl to Helena flights
San Antonio to Billings flights
Hobby to Butte flights
Austin to Butte flights
El Paso to Bozeman flights
Hobby to Helena flights
Love Field to Kalispell flights
El Paso to Missoula flights
El Paso to Kalispell flights
George Bush Intcntl to Butte flights
Killeen to Missoula flights
Love Field to Great Falls flights
Austin to Great Falls flights
Lubbock to Bozeman flights
Amarillo to Bozeman flights
Midland to Bozeman flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.