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Helena

$175+ Cheap flights from San Antonio to Helena (SAT - HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — HLN
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 2/256:06 pm
SAT
-
HLN
1 stop22h 53m
Alaska Airlines
Sun 3/14:36 pm
HLN
-
SAT
1 stop23h 34m
Alaska Airlines
Deal found 2/10$339
This United Airlines deal was found by Cheapflights users on 2/10. 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 2/2511:43 am
SAT
-
HLN
2 stops10h 33m
United Airlines
Sun 3/12:25 pm
HLN
-
SAT
1 stop5h 31m
United Airlines
Deal found 2/10$344
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 10/314:45 pm
SAT
-
HLN
1 stop5h 14m
United Airlines
Mon 11/22:30 pm
HLN
-
SAT
1 stop5h 37m
United Airlines
Deal found 2/9$369
This Expedia deal was found by Cheapflights users on 2/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:01 pm
SAT
-
HLN
1 stop23h 05m
Alaska Airlines
Fri 5/224:43 pm
HLN
-
SAT
1 stop11h 46m
Alaska Airlines
Deal found 2/11$453
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:35 am
SAT
-
HLN
1 stop6h 45m
Delta
Mon 6/11:00 pm
HLN
-
SAT
2 stops9h 48m
Delta
Deal found 2/11$582
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:35 am
SAT
-
HLN
1 stop6h 45m
Delta
Mon 5/255:45 am
HLN
-
SAT
1 stop6h 59m
Delta
Deal found 2/11$659

Find 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 February 13, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$339
(Alaska Airlines)

One-way from

$175
(Alaska Airlines)
Provider with most accurate pricing for San Antonio-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Helena flights.
Search Deals
From San Antonio to Helena
Search Deals
One-way flight from San Antonio to Helena
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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 February 13, 2026.
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

Wed 2/25

6:06 pm-3:59 pm

1 stop22h 53m

Helena

Sun 3/1

4:36 pm-5:10 pm

1 stop23h 34m

$339

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Wed 2/25

11:43 am-9:16 pm

2 stops10h 33m

Helena

Sun 3/1

2:25 pm-8:56 pm

1 stop5h 31m

$344

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 5/16

6:01 pm-4:06 pm

1 stop23h 05m

Helena

Fri 5/22

4:43 pm-5:29 am

1 stop11h 46m

$453

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Fri 5/29

6:35 am-12:20 pm

1 stop6h 45m

Helena

Mon 6/1

5:45 am-1:44 pm

1 stop6h 59m

$519

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 5/21

6:35 am-12:20 pm

1 stop6h 45m

Helena

Mon 5/25

5:45 am-1:44 pm

1 stop6h 59m

$659

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Fri 5/22

6:35 am-12:20 pm

1 stop6h 45m

Helena

Mon 5/25

5:45 am-1:44 pm

1 stop6h 59m

$659

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sun 6/21

5:57 pm-4:22 pm

1 stop23h 25m

Helena

Sun 6/28

4:59 pm-5:13 am

1 stop11h 14m

$757

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 3/3

6:06 pm-3:59 pm

1 stop22h 53m

$175

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Mon 3/2

3:43 pm-3:59 pm

2 stops25h 16m

$231

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Mon 3/2

9:39 pm-3:59 pm

3 stops43h 20m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

  • Most accurate provider: When it comes to deals on San Antonio-Helena flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Antonio-Helena flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Antonio-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Helena flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from San Antonio to Helena (average of $149). Flying from San Antonio to Helena in January is currently the most expensive (average of $274). 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 6h 45m. Alaska Airlines provides one of the quickest options available for as low as $519. 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, August is the cheapest month in which you can book a flight from San Antonio to Helena (average of $149). Flying from San Antonio to Helena in January is currently the most expensive (average of $274). 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

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