HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$195+ Cheap flights from Helena to San Antonio (HLN - SAT)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SAT
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to San Antonio 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 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 July 11, 2025.

Round-trip from

$379
(Delta)

One-way from

$195
(Delta)

Popular in

October

Cheapest in

May

Average price

$488
From Helena to San Antonio
Search Deals
One-way flight from Helena to San Antonio
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 11, 2025.

This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:50 amHLN - SAT
1 stop6h 49mDelta
Sun 8/317:30 amSAT - HLN
1 stop5h 50mDelta
Deal found 7/10$379
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 10/86:18 pmHLN - SAT
1 stop28h 46mAlaska Airlines
Mon 10/137:56 pmSAT - HLN
1 stop22h 45mAlaska Airlines
Deal found 7/10$443
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 8/285:20 pmHLN - SAT
2 stops16h 17mUnited Airlines
Sun 8/317:15 amSAT - HLN
2 stops9h 49mUnited Airlines
Deal found 7/10$495

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 July 11, 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

Thu 8/28

5:50 am-1:39 pm

1 stop6h 49m

San Antonio

Sun 8/31

7:30 am-12:20 pm

1 stop5h 50m

$379

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Wed 10/8

6:18 pm-12:04 am

1 stop28h 46m

San Antonio

Mon 10/13

7:56 pm-5:41 pm

1 stop22h 45m

$443

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Thu 8/28

5:20 pm-10:37 am

2 stops16h 17m

San Antonio

Sun 8/31

7:15 am-4:04 pm

2 stops9h 49m

$495

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 9/9

1:00 pm-11:54 pm

2 stops9h 54m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

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, August is the cheapest month in which you can book a flight from Helena to San Antonio (average of $295). Flying from Helena to San Antonio in March is currently the most expensive (average of $376). 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.

How much does it cost to fly round-trip from Helena to San Antonio?

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 July 11, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,951 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Helena to San Antonio round-trip?

    Our cheapest airline available from Helena to San Antonio is Delta. Our recent data shows that you can find tickets from as low as $379 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $443 and $495 round-trip. Delta is currently priced 19% below the average price you’ll pay for this route.

  • 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, August is the cheapest month in which you can book a flight from Helena to San Antonio (average of $295). Flying from Helena to San Antonio in March is currently the most expensive (average of $376). 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 Helena?

Book flights to Helena if you plan to visit one of these locations
New Braunfels

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 Helena to San Antonio

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

Top 2 airlines flying from Helena to San Antonio

Discover the top 2 airlines 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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$282Average$468FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$340Average$559FlexibilityNo cancel feeOn-time69%

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.