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$294+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SAT
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This Delta deal was found by Cheapflights users on 1/25. 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.
Wed 3/185:30 am
HLN
-
SAT
2 stops8h 08m
Delta
Fri 3/275:55 pm
SAT
-
HLN
1 stop5h 35m
Delta
Deal found 1/25$294
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/192:30 pm
HLN
-
SAT
1 stop8h 02m
United Airlines
Tue 3/244:40 pm
SAT
-
HLN
1 stop5h 45m
United Airlines
Deal found 1/25$314
This Delta deal was found by Cheapflights users on 1/25. 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.
Wed 3/185:30 am
HLN
-
SAT
2 stops8h 08m
Delta
Tue 3/247:00 am
SAT
-
HLN
1 stop6h 21m
Delta
Deal found 1/25$319
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/192:30 pm
HLN
-
SAT
1 stop5h 24m
United Airlines
Thu 3/264:40 pm
SAT
-
HLN
1 stop5h 45m
United Airlines
Deal found 1/25$339
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/182:30 pm
HLN
-
SAT
1 stop8h 02m
United Airlines
Tue 3/244:40 pm
SAT
-
HLN
1 stop5h 45m
United Airlines
Deal found 1/25$349
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/192:30 pm
HLN
-
SAT
1 stop8h 02m
United Airlines
Sat 3/284:40 pm
SAT
-
HLN
1 stop5h 45m
United Airlines
Deal found 1/25$374
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/192:30 pm
HLN
-
SAT
1 stop5h 24m
United Airlines
Wed 3/255:00 am
SAT
-
HLN
2 stops9h 38m
United Airlines
Deal found 1/25$379
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/286:15 am
HLN
-
SAT
1 stop5h 58m
United Airlines
Fri 4/38:45 am
SAT
-
HLN
1 stop5h 54m
United Airlines
Deal found 1/26$388
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/182:30 pm
HLN
-
SAT
1 stop5h 24m
United Airlines
Sat 3/284:40 pm
SAT
-
HLN
1 stop5h 45m
United Airlines
Deal found 1/25$409
This Delta deal was found by Cheapflights users on 1/25. 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.
Wed 3/185:30 am
HLN
-
SAT
2 stops8h 08m
Delta
Sat 3/287:00 am
SAT
-
HLN
1 stop6h 21m
Delta
Deal found 1/25$414
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Fri 3/202:30 pm
HLN
-
SAT
1 stop5h 24m
United Airlines
Tue 3/248:51 am
SAT
-
HLN
1 stop5h 47m
United Airlines
Deal found 1/25$428

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$294
(Delta)
Provider with most accurate pricing for Helena-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-San Antonio flights.
Search Deals
From Helena to San Antonio
Search Deals

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 January 27, 2026.
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

Thu 3/19

2:30 pm-8:54 pm

1 stop5h 24m

San Antonio

Thu 3/26

4:40 pm-9:25 pm

1 stop5h 45m

$339

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Thu 3/19

2:30 pm-8:54 pm

1 stop5h 24m

San Antonio

Tue 3/24

5:00 am-1:38 pm

2 stops9h 38m

$344

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Wed 3/18

2:30 pm-11:32 pm

1 stop8h 02m

San Antonio

Tue 3/24

4:40 pm-9:25 pm

1 stop5h 45m

$349

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Thu 3/19

2:30 pm-8:54 pm

1 stop5h 24m

San Antonio

Wed 3/25

4:40 pm-9:25 pm

1 stop5h 45m

$374

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Thu 3/19

2:30 pm-11:32 pm

1 stop8h 02m

San Antonio

Sat 3/28

4:40 pm-9:25 pm

1 stop5h 45m

$374

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Sat 3/21

2:30 pm-11:32 pm

1 stop8h 02m

San Antonio

Tue 3/24

5:00 am-1:38 pm

2 stops9h 38m

$379

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Sat 3/28

6:15 am-1:13 pm

1 stop5h 58m

San Antonio

Fri 4/3

8:45 am-1:39 pm

1 stop5h 54m

$388

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Sat 3/21

2:30 pm-11:32 pm

1 stop8h 02m

San Antonio

Sat 3/28

4:40 pm-9:25 pm

1 stop5h 45m

$409

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Wed 3/18

5:30 am-2:38 pm

2 stops8h 08m

San Antonio

Sat 3/28

7:00 am-12:21 pm

1 stop6h 21m

$414

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Fri 3/20

2:30 pm-8:54 pm

1 stop5h 24m

San Antonio

Tue 3/24

8:51 am-1:38 pm

1 stop5h 47m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-San Antonio flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 July 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.

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 January 27, 2026.
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
9,205 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 United Airlines fly from Helena to San Antonio in about 5h 24m. 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 July 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

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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$340Average$558FlexibilityNo cancel feeOn-time69%

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