Which airports can I use when flying from Helena to San Antonio?

Flights from Helena to San Antonio usually depart from Helena (HLN) and arrive at San Antonio (SAT).

What cabin classes can I book on flights from Helena to San Antonio?

Only Economy Class is available on flights from Helena to San Antonio.

Which airports do connecting flights from Helena to San Antonio pass through?

Connecting flights from Helena to San Antonio most commonly pass through: • Denver Intl (DEN) - 65% of one-stop connections • Salt Lake City (SLC) - 35% of one-stop connections Together, these airports account for 100% of one-stop bookings on this route.

Can I save money by using flexible dates for flights from Helena to San Antonio?

On the Helena to San Antonio route, being flexible with your departure day can save you up to 43%. Saturday is the cheapest day at $373 round-trip on average, while Tuesday is the most expensive at $646: a $273 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in San Antonio?

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

How long is a flight from Helena to San Antonio?

There are currently no nonstop flights available from Helena to San Antonio. Flights with 1 layover take between 5h 51m and 6h 18m in total, depending on the connection.

Do I need a passport to fly from Helena to San Antonio?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Helena to San Antonio changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $359 to $1,971. That means the highest observed fare was about 5x higher than the lowest one.

How much time can I save by choosing a different layover airport from Helena to San Antonio?

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 51m, compared with 6h 18m via Salt Lake City (SLC).

What is the time difference between Helena and San Antonio?

San Antonio is 1 hour ahead of Helena (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at San Antonio Airport (SAT)?

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include: • Europcar • Fox • Dollar • Hertz • Alamo

How much should I expect to pay for a Helena to San Antonio flight?

Round-trip flights from Helena to San Antonio range from $438 to $639, with an average of $487 over the past 12 months. Anything below $438 counts as a good deal.

What is the cheapest airline to fly from Helena to San Antonio?

Delta ($359) and United Airlines ($359) are the cheapest airlines to fly round-trip from Helena to San Antonio according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Helena to San Antonio?

Denver Intl (DEN) is the most popular layover for the Helena to San Antonio route. 65% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.

What is the cheapest layover airport when flying from Helena to San Antonio?

Flights via Salt Lake City (SLC) offer the most affordable fares, with an average round-trip price of $446. Based on KAYAK data over the past 3 months.

When flying from Helena to San Antonio which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Helena to San Antonio layovers at 218 minutes over the past 3 months.

$359 CHEAP FLIGHTS from Helena to San Antonio (HLN - SAT)

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Cheapest round-trip

$359

Typical prices: $438-$639

Delta

Fri 3/9Tue 3/13

HLN - SAT • 1 stop

When to travel

May

Cheapest • 27% price drop

March

Most popular

Good to know

Top layover airports

Salt Lake City (SLC)

Cheapest • Avg $446 (round-trip)

Denver Intl (DEN)

Shortest trip • 5h 51m (one-way)

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Flight Deals

Cheap Flights from Helena to San Antonio (HLN-SAT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Helena to San Antonio

Tue, Mar 9 - Sat, Mar 13

5:45 am - 1:34 pmHLN Helena-SAT San Antonio

6h 49m1 stop Salt Lake City

6:05 pm - 10:41 pmSAT San Antonio-HLN Helena

5h 36m1 stop Salt Lake City

$359Delta

Wed, Oct 28 - Sun, Nov 1

2:23 pm - 8:53 pmHLN Helena-SAT San Antonio

5h 30m1 stop Denver Intl

4:48 pm - 9:31 pmSAT San Antonio-HLN Helena

5h 43m1 stop Denver Intl

$359United Airlines

Thu, Dec 3 - Tue, Dec 8

6:30 am - 12:46 pmHLN Helena-SAT San Antonio

5h 16m1 stop Denver Intl

8:45 am - 1:52 pmSAT San Antonio-HLN Helena

6h 07m1 stop Denver Intl

$359United Airlines

Wed, Oct 28 - Sun, Nov 1

2:23 pm - 10:51 pmHLN Helena-SAT San Antonio

7h 28m2 stops Denver Intl Houston George Bush Intcntl

8:56 am - 1:40 pmSAT San Antonio-HLN Helena

5h 44m1 stop Denver Intl

$364United Airlines

Wed, Oct 28 - Sun, Nov 1

1:08 pm - 12:33 amHLN Helena-SAT San Antonio

10h 25m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:35 am - 12:28 pmSAT San Antonio-HLN Helena

6h 53m1 stop Salt Lake City

$364Delta

Thu, Dec 3 - Tue, Dec 8

2:35 pm - 10:59 pmHLN Helena-SAT San Antonio

7h 24m2 stops Denver Intl Houston George Bush Intcntl

8:45 am - 1:52 pmSAT San Antonio-HLN Helena

6h 07m1 stop Denver Intl

$364United Airlines

Wed, Dec 2 - Tue, Dec 8

7:03 am - 1:39 pmHLN Helena-SAT San Antonio

5h 36m1 stop Salt Lake City

7:43 am - 12:30 pmSAT San Antonio-HLN Helena

5h 47m1 stop Salt Lake City

$389Delta

Wed, Sep 30 - Wed, Oct 7

12:57 pm - 12:13 amHLN Helena-SAT San Antonio

10h 16m2 stops Salt Lake City Los Angeles Los Angeles

6:35 am - 12:28 pmSAT San Antonio-HLN Helena

6h 53m1 stop Salt Lake City

$399Delta

Tue, Mar 9 - Sat, Mar 13

12:50 pm - 12:28 amHLN Helena-SAT San Antonio

10h 38m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:05 pm - 10:41 pmSAT San Antonio-HLN Helena

5h 36m1 stop Salt Lake City

$434Delta

Mon, Sep 28 - Thu, Oct 1

5:18 pm - 11:59 pmHLN Helena-SAT San Antonio

29h 41m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles

5:00 am - 4:41 pmSAT San Antonio-HLN Helena

12h 41m2 stops Dallas/Fort Worth Seattle/Tacoma Intl

$1,255Alaska Airlines

Booking Insights

Price, demand and travel trends for Helena to San Antonio flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Helena to San Antonio with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Helena to San Antonio?

Round-trip flights from Helena to San Antonio start at $359. Prices are below average for this route right now, with typical round-trip fares ranging from $438 to $639. The lowest price found in the past 5 days was $359 on Delta.

Find deals

Low season	July
High season	March
Cheapest flight	$380

Most popular time to fly with an average 31% increase in price.

Flight from Helena to San Antonio

When to book flights from Helena to San Antonio

Are your dates flexible? Find out the best times to travel from Helena to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Helena to San Antonio?
Flights from Helena to San Antonio usually depart from Helena (HLN) and arrive at San Antonio (SAT).
What cabin classes can I book on flights from Helena to San Antonio?
Only Economy Class is available on flights from Helena to San Antonio.
Which airports do connecting flights from Helena to San Antonio pass through?
Connecting flights from Helena to San Antonio most commonly pass through:

• Denver Intl (DEN) - 65% of one-stop connections
• Salt Lake City (SLC) - 35% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.
Can I save money by using flexible dates for flights from Helena to San Antonio?
On the Helena to San Antonio route, being flexible with your departure day can save you up to 43%. Saturday is the cheapest day at $373 round-trip on average, while Tuesday is the most expensive at $646: a $273 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What popular places can I visit in San Antonio?
Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.
How long is a flight from Helena to San Antonio?
There are currently no nonstop flights available from Helena to San Antonio. Flights with 1 layover take between 5h 51m and 6h 18m in total, depending on the connection.
Do I need a passport to fly from Helena to San Antonio?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Helena to San Antonio changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $359 to $1,971. That means the highest observed fare was about 5x higher than the lowest one.
How much time can I save by choosing a different layover airport from Helena to San Antonio?
Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 51m, compared with 6h 18m via Salt Lake City (SLC).
What is the time difference between Helena and San Antonio?
San Antonio is 1 hour ahead of Helena (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at San Antonio Airport (SAT)?
San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:
• Europcar
• Fox
• Dollar
• Hertz
• Alamo
How much should I expect to pay for a Helena to San Antonio flight?
Round-trip flights from Helena to San Antonio range from $438 to $639, with an average of $487 over the past 12 months. Anything below $438 counts as a good deal.

If your dates can be flexible, aim for a Saturday departure instead of Tuesday. On this route, Saturday flights average $373 - about $273 less than Tuesday (42% savings) based on the last 12 months.
If you can choose when to travel, plan your Helena to San Antonio trip for May. Fares historically average $354 round-trip in that month - typically $447 less than the most expensive month, which is January (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to San Antonio Airport.
- Wyndham Garden San Antonio Airport
- Crowne Plaza San Antonio Airport By IHG
- La Quinta Inn & Suites by Wyndham San Antonio Airport

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HLN - SAT

$359 Find Cheap Flights from Helena to San Antonio - Compare and Save

Everything you should know

Cheap Flights from Helena to San Antonio (HLN-SAT)

Recent round-trip flight deals from Helena to San Antonio

Recent one-way flight deals from Helena to San Antonio

Recent last minute flight deals from Helena to San Antonio

Price, demand and travel trends for Helena to San Antonio flights

How much is a round-trip flight from Helena to San Antonio?

What is the cheapest airline to fly from Helena to San Antonio?

What is the most popular layover airport when flying from Helena to San Antonio?

What is the cheapest layover airport when flying from Helena to San Antonio?

When flying from Helena to San Antonio which airport offers the shortest layover?

Key details for Helena to San Antonio flights

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High season

Cheapest flight

When to book flights from Helena to San Antonio

Your Helena to San Antonio flight questions, answered

Your guide to booking Helena to San Antonio flights

More options for your flight from Helena to San Antonio

Complete your trip to San Antonio with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Helena to San Antonio

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