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$342+ Cheap flights from Helena to San Antonio (HLN - SAT)

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SAT
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheap flight deals from Helena to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to San Antonio (SAT). 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$342
(Alaska Airlines)
Provider with most accurate pricing for Helena-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Helena-San Antonio flights.
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From Helena to San Antonio
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Find flight deals from Helena to San Antonio

Cheapest flights from Helena to San Antonio
Explore the most affordable flight options available from Helena to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 10/302:22 pmHLN - SAT
1 stop7h 05mUnited Airlines
dom. 11/25:30 amSAT - HLN
2 stops8h 57mUnited Airlines
Deal found 10/28$752
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 10/306:13 pmHLN - SAT
1 stop22h 42mAlaska Airlines
sáb. 11/17:05 amSAT - HLN
2 stops11h 31mAlaska Airlines
Deal found 10/28$1,075
This United Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 10/302:22 pmHLN - SAT
1 stop7h 05mUnited Airlines
lun. 11/34:30 pmSAT - HLN
1 stop5h 52mUnited Airlines
Deal found 10/28$1,091
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 10/306:13 pmHLN - SAT
1 stop22h 42mAlaska Airlines
lun. 11/37:00 amSAT - HLN
2 stops11h 36mAlaska Airlines
Deal found 10/28$1,161

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to San Antonio 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 octubre 28, 2025.
Use the filters below to find and compare flights from Helena to San Antonio that are best for you.

Fly from

Helena

Fly to

San Antonio

Route

Depart

Return

Price

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

mié. 1/14

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

vie. 1/23

6:46 pm-5:22 pm

1 stop23h 36m

$342

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

mié. 1/14

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

mar. 1/20

6:46 pm-5:22 pm

1 stop23h 36m

$352

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

mar. 1/13

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

mié. 1/21

6:46 pm-5:22 pm

1 stop23h 36m

$352

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

sáb. 1/17

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

mar. 1/20

6:46 pm-5:22 pm

1 stop23h 36m

$352

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

mar. 1/13

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

jue. 1/22

6:46 pm-5:22 pm

1 stop23h 36m

$352

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

sáb. 1/17

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

mié. 1/21

6:46 pm-5:22 pm

1 stop23h 36m

$352

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

jue. 2/26

4:10 pm-5:58 pm

1 stop24h 48m

San Antonio

dom. 3/1

7:00 pm-3:43 pm

1 stop21h 43m

$362

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 1/11

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

lun. 1/19

6:46 pm-5:22 pm

1 stop23h 36m

$382

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 1/11

5:59 pm-5:46 pm

1 stop22h 47m

San Antonio

vie. 1/23

6:46 pm-5:22 pm

1 stop23h 36m

$382

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 1/11

1:10 pm-9:28 pm

1 stop7h 18m

San Antonio

jue. 1/22

7:35 am-12:27 pm

1 stop5h 52m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 11 results
1
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Compare providers for flights from Helena to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to San Antonio in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Helena-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-San Antonio flights, Cheapflights users trust eDreams the most. eDreams 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 Helena-San Antonio 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 Helena to San Antonio

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

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

Currently, October is the cheapest month in which you can book a flight from Helena to San Antonio (average of $151). Flying from Helena to San Antonio in January is currently the most expensive (average of $327). 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.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated octubre 28, 2025.
Peruse reviews from past customers who have flown with United Airlines from Helena to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Helena to San Antonio. 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 Helena to San Antonio?

    Airlines like Alaska Airlines fly from Helena to San Antonio in about 22h 47m. The time it takes to get you to your destination can typically vary by up to . The distance between Helena and San Antonio is about 1385 mi.

  • What is the cheapest airline to fly from Helena to San Antonio round-trip?

    Our cheapest airline available from Helena to San Antonio is United Airlines. Our recent data shows that you can find tickets from as low as $340 on this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to San Antonio 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 Helena to San Antonio?

    Currently, October is the cheapest month in which you can book a flight from Helena to San Antonio (average of $151). Flying from Helena to San Antonio in January is currently the most expensive (average of $327). 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

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Top airline flying from Helena to San Antonio

Discover the top airline that operate flights from Helena to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$340Average$505FlexibilityNo cancel feeOn-time69%

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