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) - 59% of one-stop connections • Salt Lake City (SLC) - 41% of one-stop connections

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

Yes. Flexible dates can save you up to 54% on flights from Helena to San Antonio. Saturday is the cheapest departure day at $373 round-trip on average, while Friday is the most expensive at $801, a difference of $428. 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 42m and 6h 14m 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 $379 to $2,052. 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 42m, compared with 6h 14m 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 averaging $53 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 $477 over the past 12 months. Anything below $438 counts as a good deal.

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

Round-trip flights from Helena to San Antonio typically range from $438 to $639. The lowest price found in the past 5 days was $379, on Delta.

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

Delta ($379) and United Airlines ($379) are the cheapest airlines to fly round-trip from Helena to San Antonio according to KAYAK data over the last 5 days.

What’s 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. 59% 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 $443. 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 3h 28m over the past 3 months.

$275 CHEAP FLIGHTS from Helena to San Antonio (HLN - SAT)

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Never overpay with our price tracking tools.

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Cheapest round-trip

$379

Typical prices: $438-$639

Delta

Tue 1/9Fri 1/19

HLN - SAT • 1 stop

When to travel

May

Cheapest • 26% price drop

March

Most popular

Good to know

Top layover airports

Salt Lake City (SLC)

Cheapest • Avg $443 (round-trip)

Denver Intl (DEN)

Shortest trip • 5h 42m (one-way)

Insights

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We hope you love your trip to San Antonio!

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

Recent round-trip flight deals from Helena to San Antonio

Sat, Jan 9 - Tue, Jan 19

1:12 pm - 9:27 pmHLN Helena-SAT San Antonio

7h 15m1 stop Salt Lake City

6:01 pm - 10:32 pmSAT San Antonio-HLN Helena

5h 31m1 stop Salt Lake City

$379Delta

Sat, Jan 9 - Wed, Jan 20

1:12 pm - 9:27 pmHLN Helena-SAT San Antonio

7h 15m1 stop Salt Lake City

6:01 pm - 10:32 pmSAT San Antonio-HLN Helena

5h 31m1 stop Salt Lake City

$379Delta

Fri, Jan 8 - Wed, Jan 20

6:15 am - 12:58 pmHLN Helena-SAT San Antonio

5h 43m1 stop Denver Intl

4:43 pm - 9:32 pmSAT San Antonio-HLN Helena

5h 49m1 stop Denver Intl

$379United Airlines

Sat, Jan 9 - Fri, Jan 22

1:12 pm - 9:27 pmHLN Helena-SAT San Antonio

7h 15m1 stop Salt Lake City

6:01 pm - 10:32 pmSAT San Antonio-HLN Helena

5h 31m1 stop Salt Lake City

$379Delta

Sat, Jan 9 - Tue, Jan 19

1:12 pm - 9:27 pmHLN Helena-SAT San Antonio

7h 15m1 stop Salt Lake City

6:01 pm - 10:32 pmSAT San Antonio-HLN Helena

5h 31m1 stop Salt Lake City

$379Delta

Fri, Jan 8 - Wed, Jan 20

2:27 pm - 8:45 pmHLN Helena-SAT San Antonio

5h 18m1 stop Denver Intl

2:10 pm - 9:32 pmSAT San Antonio-HLN Helena

8h 22m2 stops Houston George Bush Intcntl Denver Intl

$384United Airlines

Fri, Jan 8 - Wed, Jan 20

2:27 pm - 10:59 pmHLN Helena-SAT San Antonio

7h 32m2 stops Denver Intl Houston George Bush Intcntl

11:50 am - 9:32 pmSAT San Antonio-HLN Helena

10h 42m2 stops Houston George Bush Intcntl Denver Intl

$389United Airlines

Tue, Jan 5 - Tue, Jan 19

5:00 pm - 4:02 pmHLN Helena-SAT San Antonio

22h 02m1 stop Seattle/Tacoma Intl

5:00 pm - 4:23 pmSAT San Antonio-HLN Helena

24h 23m1 stop Seattle/Tacoma Intl

$573Alaska Airlines

Tue, Jan 5 - Wed, Jan 20

5:00 pm - 4:02 pmHLN Helena-SAT San Antonio

22h 02m1 stop Seattle/Tacoma Intl

5:00 pm - 4:23 pmSAT San Antonio-HLN Helena

24h 23m1 stop Seattle/Tacoma Intl

$588Alaska Airlines

Tue, Jan 5 - Fri, Jan 22

5:00 pm - 4:02 pmHLN Helena-SAT San Antonio

22h 02m1 stop Seattle/Tacoma Intl

5:00 pm - 4:23 pmSAT San Antonio-HLN Helena

24h 23m1 stop Seattle/Tacoma Intl

$593Alaska 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 with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Helena to San Antonio? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Helena to San Antonio departing in january.

Find deals

Low season	June
High season	March
Cheapest flight	$275

Beat the crowds with an average 78% drop in travelers.

The most popular month to fly with an average 111% increase in travelers.

One-way 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.

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.
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 42m and 6h 14m 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.
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 $477 over the past 12 months. Anything below $438 counts as a good deal.
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 $379 to $2,052. That means the highest observed fare was about 5x higher than the lowest one.
What car rental options are available at San Antonio Airport (SAT)?
San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates averaging $53 for economy cars. Top options include:

• Europcar
• Fox
• Dollar
• Hertz
• Alamo
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).
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) - 59% of one-stop connections
• Salt Lake City (SLC) - 41% of one-stop connections
Can I save money by using flexible dates for flights from Helena to San Antonio?
Yes. Flexible dates can save you up to 54% on flights from Helena to San Antonio. Saturday is the cheapest departure day at $373 round-trip on average, while Friday is the most expensive at $801, a difference of $428.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
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 42m, compared with 6h 14m 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 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.

If your dates are flexible, aim for a Saturday departure and avoid flying on Friday. On this route, Saturday flights average $373, about $428 less than Friday fares (53% 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
• Heritage Inn & Suites San Antonio Airport, Trademark Wyndham
• La Quinta Inn & Suites by Wyndham San Antonio Airport

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HLN - SAT

$275 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

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

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

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

What’s 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

Low season

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

Find direct flights to and from Helena and San Antonio

Flights from domestic origins to San Antonio

Flights to other popular destinations