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

Prices for flights from San Antonio Airport to Helena Airport are refreshed on a daily basis.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The necessary travel and health documents for your Helena 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.

$320 Cheap Flights from San Antonio to Helena in 2026/27

Find the cheapest flights from San Antonio to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

6h 53m1 stop Salt Lake City

7:15 am - 1:40 pmHLN Helena-SAT San Antonio

5h 25m1 stop Salt Lake City

$359Delta

Fri, Oct 30 - Sat, Oct 31

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

6h 53m1 stop Salt Lake City

7:15 am - 1:40 pmHLN Helena-SAT San Antonio

5h 25m1 stop Salt Lake City

$359Delta

Thu, Oct 29 - Sat, Oct 31

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

5h 49m1 stop Denver Intl

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

5h 18m1 stop Denver Intl

$359United Airlines

Thu, Jan 28 - Sun, Jan 31

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

5h 44m1 stop Denver Intl

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

5h 30m1 stop Denver Intl

$359United Airlines

Wed, Oct 28 - Tue, Nov 3

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

6h 53m1 stop Salt Lake City

7:15 am - 1:40 pmHLN Helena-SAT San Antonio

5h 25m1 stop Salt Lake City

$359Delta

Tue, Oct 27 - Sat, Oct 31

6:00 pm - 10:24 pmSAT San Antonio-HLN Helena

5h 24m1 stop Salt Lake City

7:15 am - 1:40 pmHLN Helena-SAT San Antonio

5h 25m1 stop Salt Lake City

$359Delta

Wed, Oct 28 - Sat, Oct 31

4:57 pm - 9:46 pmSAT San Antonio-HLN Helena

5h 49m1 stop Denver Intl

2:35 pm - 8:34 pmHLN Helena-SAT San Antonio

4h 59m1 stop Denver Intl

$359United Airlines

Wed, Dec 2 - Sun, Dec 6

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

5h 43m1 stop Denver Intl

6:28 am - 12:46 pmHLN Helena-SAT San Antonio

5h 18m1 stop Denver Intl

$359United Airlines

Wed, Nov 11 - Tue, Nov 17

7:45 am - 12:27 pmSAT San Antonio-HLN Helena

5h 42m1 stop Salt Lake City

1:07 pm - 12:33 amHLN Helena-SAT San Antonio

10h 26m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$364Delta

Wed, Nov 11 - Tue, Nov 17

11:36 am - 10:24 pmSAT San Antonio-HLN Helena

11h 48m2 stops Detroit Metropolitan Wayne County Salt Lake City

7:15 am - 1:40 pmHLN Helena-SAT San Antonio

5h 25m1 stop Salt Lake City

$364Delta

Wed, Oct 28 - Sat, Oct 31

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United Airlines flights from San Antonio to Helena

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

United Airlines

Oct 28

SAT5:30 amSan Antonio

9h 10m

2 stops

HLN1:40 pmHelena

Nov 3

HLN2:23 pmHelena

7h 28m

2 stops

SAT10:51 pmSan Antonio

$369

United Airlines

Dec 2

SAT11:47 amSan Antonio

10h 59m

2 stops

HLN9:46 pmHelena

Dec 6

HLN2:35 pmHelena

7h 24m

2 stops

SAT10:59 pmSan Antonio

$439

United Airlines

Oct 29

SAT4:48 pmSan Antonio

5h 43m

1 stop

HLN9:31 pmHelena

Nov 1

HLN2:23 pmHelena

5h 30m

1 stop

SAT8:53 pmSan Antonio

$460

Delta flights from San Antonio to Helena

Our best Delta deals on San Antonio to Helena flight tickets

Delta

Oct 28

SAT6:00 pmSan Antonio

5h 24m

1 stop

HLN10:24 pmHelena

Oct 31

HLN7:15 amHelena

5h 25m

1 stop

SAT1:40 pmSan Antonio

$359

Delta

Oct 28

SAT11:36 amSan Antonio

11h 48m

2 stops

HLN10:24 pmHelena

Oct 31

HLN7:15 amHelena

5h 25m

1 stop

SAT1:40 pmSan Antonio

$364

Delta

Oct 26

SAT6:35 amSan Antonio

6h 53m

1 stop

HLN12:28 pmHelena

Oct 31

HLN7:15 amHelena

5h 25m

1 stop

SAT1:40 pmSan Antonio

$459

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Fri 10/30

6:35 am-12:28 pm

1 stop6h 53m

Helena

Sat 10/31

7:15 am-1:40 pm

1 stop5h 25m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Thu 10/29

6:35 am-12:28 pm

1 stop6h 53m

Helena

Sat 10/31

7:15 am-1:40 pm

1 stop5h 25m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Thu 1/28

4:43 pm-9:32 pm

1 stop5h 49m

Helena

Sun 1/31

2:27 pm-8:45 pm

1 stop5h 18m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 10/28

8:56 am-1:40 pm

1 stop5h 44m

Helena

Tue 11/3

2:23 pm-8:53 pm

1 stop5h 30m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Tue 10/27

6:35 am-12:28 pm

1 stop6h 53m

Helena

Sat 10/31

7:15 am-1:40 pm

1 stop5h 25m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 10/28

6:00 pm-10:24 pm

1 stop5h 24m

Helena

Sat 10/31

7:15 am-1:40 pm

1 stop5h 25m

$359

Quickest round-trip

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 12/2

4:57 pm-9:46 pm

1 stop5h 49m

Helena

Sun 12/6

2:35 pm-8:34 pm

1 stop4h 59m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 11/11

4:48 pm-9:31 pm

1 stop5h 43m

Helena

Tue 11/17

6:28 am-12:46 pm

1 stop5h 18m

$359

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 11/11

7:45 am-12:27 pm

1 stop5h 42m

Helena

Tue 11/17

1:07 pm-12:33 am

2 stops10h 26m

$364

San AntonioHelena

SAT San Antonio - HLN Helena

SATHLN

San Antonio

Wed 10/28

11:36 am-10:24 pm

2 stops11h 48m

Helena

Sat 10/31

7:15 am-1:40 pm

1 stop5h 25m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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 is the cheapest airline that flies from San Antonio to Helena?

Alaska Airlines and United Airlines are the most popular carriers operating from San Antonio to Helena

What airlines fly to Helena?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Helena from San Antonio according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 5 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from San Antonio to Helena

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

Estimated round-trip price

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

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

Best Price Found	$320
Fastest flight time	5h 43m
Direct flights	None

The best one-way flight to Helena from San Antonio in the past 72 hours is $320. The best round-trip flight deal from San Antonio to Helena found on momondo in the last 72 hours is $359.

The fastest flight from San Antonio to Helena takes 5h 43m

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

Search flight deals

Frequently asked questions about flying from San Antonio to Helena

How far is San Antonio to Helena by plane?
A flight from San Antonio to Helena will travel around 1391.2 mi. 5h 43m is a normal flight duration for this route.
When did momondo last update prices for flights from San Antonio Airport to Helena Airport?
Prices for flights from San Antonio Airport to Helena Airport are refreshed on a daily basis.
How old do you have to be to fly from San Antonio Airport to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The necessary travel and health documents for your Helena 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.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Helena from San Antonio.

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

All flight searches from San Antonio to Helena on momondo can be filtered to show those which offer flexible booking policies.

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

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 Helena from San Antonio.

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

Price alerts on flights to Helena from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.