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$363+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SAT
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Helena to San Antonio

Best flights from Helena to San Antonio
Discover carefully curated flight deals from Helena to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/56:48 pmHLN - SAT
1 stop21h 57mAlaska Airlines
lun. 2/96:46 pmSAT - HLN
1 stop24h 25mAlaska Airlines
Deal found 12/11$363
This deal was found by Cheapflights users on 12/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/52:27 pmHLN - SAT
1 stop5h 17mUnited Airlines
lun. 2/98:30 amSAT - HLN
1 stop6h 11mUnited Airlines
Deal found 12/11$463
This Delta deal was found by Cheapflights users on 12/11. 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.
jue. 2/55:30 amHLN - SAT
2 stops15h 04mDelta
lun. 2/96:20 pmSAT - HLN
1 stop5h 09mDelta
Deal found 12/11$466
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 1/246:48 pmHLN - SAT
1 stop21h 57mAlaska Airlines
mié. 1/286:46 pmSAT - HLN
1 stop24h 25mAlaska Airlines
Deal found 12/11$392
This United Airlines deal was found by Cheapflights users on 12/9. 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.
sáb. 1/242:27 pmHLN - SAT
2 stops7h 30mUnited Airlines
mié. 1/284:43 pmSAT - HLN
1 stop5h 43mUnited Airlines
Deal found 12/9$468
This Expedia deal was found by Cheapflights users on 12/11. 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.
vie. 1/26:32 pmHLN - SAT
1 stop9h 33mAlaska Airlines
jue. 1/86:46 pmSAT - HLN
1 stop24h 25mAlaska Airlines
Deal found 12/11$648
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 1/26:10 amHLN - SAT
2 stops30h 01mUnited Airlines
jue. 1/85:25 amSAT - HLN
2 stops9h 16mUnited Airlines
Deal found 12/11$829

Find 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$363
(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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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 diciembre 12, 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

jue. 2/5

6:48 pm-5:45 pm

1 stop21h 57m

San Antonio

lun. 2/9

6:46 pm-6:11 pm

1 stop24h 25m

$363

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

sáb. 1/24

6:48 pm-5:45 pm

1 stop21h 57m

San Antonio

mié. 1/28

6:46 pm-6:11 pm

1 stop24h 25m

$392

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

jue. 2/5

2:27 pm-8:44 pm

1 stop5h 17m

San Antonio

lun. 2/9

8:30 am-1:41 pm

1 stop6h 11m

$463

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

jue. 2/5

5:30 am-9:34 pm

2 stops15h 04m

San Antonio

lun. 2/9

6:20 pm-10:29 pm

1 stop5h 09m

$466

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

sáb. 1/24

2:27 pm-10:57 pm

2 stops7h 30m

San Antonio

mié. 1/28

4:43 pm-9:26 pm

1 stop5h 43m

$468

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

vie. 1/2

6:32 pm-5:05 am

1 stop9h 33m

San Antonio

jue. 1/8

6:46 pm-6:11 pm

1 stop24h 25m

$648

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

vie. 1/2

6:10 am-1:11 pm

2 stops30h 01m

San Antonio

jue. 1/8

5:25 am-1:41 pm

2 stops9h 16m

$829

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 March is currently the most expensive (average of $290). 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 diciembre 12, 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
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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, United Airlines, and Delta fly from Helena to San Antonio in about 5h 17m. The time it takes to get you to your destination can typically vary by up to 16h 40m. The distance between Helena and San Antonio is about 1385 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 March is currently the most expensive (average of $290). 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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Alternative routes for Helena to San Antonio

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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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$340Average$505FlexibilityNo cancel feeOn-time69%

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