When did momondo last update prices for flights from Helena Airport to San Antonio Airport?

Prices for flights from Helena Airport to San Antonio Airport were last updated today.

How many operators does momondo search for flights from Helena Airport to San Antonio Airport?

The number of operators available for flights from Helena Airport to San Antonio Airport is 1 as of January 2026.

How old do you have to be to fly from Helena Airport to San Antonio Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$314 Cheap Flights from Helena to San Antonio in 2026

1 adult

0 bags

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Find the cheapest flights from Helena to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:36 pm - 5:10 pm

HLN

SAT

23h 34m

1 stop

6:06 pm - 3:59 pm

SAT

HLN

22h 53m

1 stop

$314Alaska Airlines

dom., mar. 1 - mar., mar. 3

4:36 pm - 5:10 pm

HLN

SAT

23h 34m

1 stop

7:36 am - 3:59 pm

SAT

HLN

33h 23m

2 stops

$419Alaska Airlines

dom., mar. 1 - mar., mar. 3

4:36 pm - 4:29 pm

HLN

SAT

22h 53m

2 stops

6:00 am - 3:59 pm

SAT

HLN

10h 59m

2 stops

$489Alaska Airlines

dom., mar. 1 - mar., mar. 3

United Airlines flights from Helena to San Antonio

Our best United Airlines deals on Helena to San Antonio flight tickets

United Airlines

Feb 3

HLN6:15 amHelena

5h 54m

1 stop

SAT1:09 pmSan Antonio

Feb 7

SAT8:30 amSan Antonio

6h 11m

1 stop

HLN1:41 pmHelena

$409

United Airlines

Feb 3

HLN6:15 amHelena

10h 16m

2 stops

SAT5:31 pmSan Antonio

Feb 7

SAT8:30 amSan Antonio

6h 11m

1 stop

HLN1:41 pmHelena

$414

United Airlines

Feb 3

HLN6:15 amHelena

5h 54m

1 stop

SAT1:09 pmSan Antonio

Feb 7

SAT8:30 amSan Antonio

6h 11m

1 stop

HLN1:41 pmHelena

$439

Alaska Airlines flights from Helena to San Antonio

Our best Alaska Airlines deals on Helena to San Antonio flight tickets

Alaska Airlines

Mar 1

HLN4:36 pmHelena

23h 34m

1 stop

SAT5:10 pmSan Antonio

Mar 3

SAT6:06 pmSan Antonio

22h 53m

1 stop

HLN3:59 pmHelena

$314

Alaska Airlines

Mar 1

HLN4:36 pmHelena

23h 34m

1 stop

SAT5:10 pmSan Antonio

Mar 3

SAT7:36 amSan Antonio

33h 23m

2 stops

HLN3:59 pmHelena

$419

Alaska Airlines

Mar 1

HLN4:36 pmHelena

22h 53m

2 stops

SAT4:29 pmSan Antonio

Mar 3

SAT6:00 amSan Antonio

10h 59m

2 stops

HLN3:59 pmHelena

$489

Fly from

Fly to

Route

Depart

Return

Price

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 3/1

4:36 pm-5:10 pm

1 stop23h 34m

San Antonio

mar. 3/3

6:06 pm-3:59 pm

1 stop22h 53m

$314

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 3/1

4:36 pm-5:10 pm

1 stop23h 34m

San Antonio

mar. 3/3

7:36 am-3:59 pm

2 stops33h 23m

$419

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

dom. 3/1

4:36 pm-4:29 pm

2 stops22h 53m

San Antonio

mar. 3/3

6:00 am-3:59 pm

2 stops10h 59m

$489

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Helena to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to San Antonio?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to San Antonio from Helena according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 4 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

When to book flights from Helena to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to San Antonio according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Helena to San Antonio (HLN to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to San Antonio

Fastest flight time	5h 17m
Direct flights	None

The fastest flight from Helena to San Antonio takes 5h 17m

There are no direct flights from Helena to San Antonio. There are no popular flight routes from Helena to San Antonio.

Search flight deals

How far is Helena to San Antonio by plane?
The distance between Helena and San Antonio is about 1391.2 mi. Flights usually cover this in 5h 17m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Helena Airport to San Antonio Airport?
Prices for flights from Helena Airport to San Antonio Airport were last updated today.
How many operators does momondo search for flights from Helena Airport to San Antonio Airport?
The number of operators available for flights from Helena Airport to San Antonio Airport is 1 as of January 2026.
How old do you have to be to fly from Helena Airport to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Helena to San Antonio?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Helena to San Antonio is United Airlines (100% of total bookings).

Best airlines flying from Helena to San Antonio

Compare and see reviews for airlines that fly from Helena to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $340	Free Cancellation	Rating 7.4 9,215 reviews		Search United Airlines flights

New Braunfels

Kerrville

Boerne

Pleasanton

Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Helena to San Antonio?

It is quick and easy to find Helena to San Antonio flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Antonio that suits you.

Can I find flights from Helena to San Antonio with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Helena to San Antonio flights to just show those with flexible booking policies.

How can momondo help me find flights from Helena to San Antonio?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from Helena.

I’m not ready to book a flight from Helena to San Antonio right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Helena to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.