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.

$314 Cheap Flights from San Antonio to Helena in 2026

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Find the cheapest flights from San Antonio to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 am - 1:39 pm

SAT

HLN

5h 54m

1 stop

2:25 pm - 8:42 pm

HLN

SAT

5h 17m

1 stop

$344United Airlines

Thu, Apr 2 - Sun, Apr 5

4:40 pm - 9:25 pm

SAT

HLN

5h 45m

1 stop

2:30 pm - 11:32 pm

HLN

SAT

8h 02m

1 stop

$359United Airlines

Thu, Mar 19 - Mon, Mar 23

8:45 am - 1:39 pm

SAT

HLN

5h 54m

1 stop

6:15 am - 5:43 pm

HLN

SAT

10h 28m

2 stops

$430United Airlines

Thu, Apr 2 - Sun, Apr 5

5:00 am - 1:38 pm

SAT

HLN

9h 38m

2 stops

2:30 pm - 11:32 pm

HLN

SAT

8h 02m

1 stop

$438United Airlines

Thu, Mar 19 - Mon, Mar 23

8:51 am - 1:38 pm

SAT

HLN

5h 47m

1 stop

2:30 pm - 11:32 pm

HLN

SAT

8h 02m

1 stop

$519United Airlines

Thu, Mar 19 - Sun, Mar 22

5:00 am - 1:38 pm

SAT

HLN

9h 38m

2 stops

2:30 pm - 11:32 pm

HLN

SAT

8h 02m

1 stop

$524United Airlines

Thu, Mar 19 - Sun, Mar 22

5:00 am - 1:38 pm

SAT

HLN

9h 38m

2 stops

2:30 pm - 10:57 pm

HLN

SAT

7h 27m

2 stops

$719United Airlines

Thu, Mar 19 - Mon, Mar 23

11:46 am - 9:33 pm

SAT

HLN

10h 47m

2 stops

6:15 am - 7:48 pm

HLN

SAT

12h 33m

2 stops

$795United Airlines

Thu, Apr 2 - Sun, Apr 5

6:00 am - 5:45 pm

SAT

HLN

12h 45m

2 stops

6:22 pm - 11:39 pm

HLN

SAT

28h 17m

2 stops

$871Alaska Airlines

Thu, Mar 19 - Sun, Mar 22

4:40 pm - 9:25 pm

SAT

HLN

5h 45m

1 stop

2:30 pm - 10:57 pm

HLN

SAT

7h 27m

2 stops

$936United Airlines

Mon, Mar 16 - Fri, Mar 20

United Airlines flights from San Antonio to Helena

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

United Airlines

Apr 2

SAT8:45 amSan Antonio

5h 54m

1 stop

HLN1:39 pmHelena

Apr 5

HLN2:25 pmHelena

5h 17m

1 stop

SAT8:42 pmSan Antonio

$344

United Airlines

Mar 19

SAT4:40 pmSan Antonio

5h 45m

1 stop

HLN9:25 pmHelena

Mar 23

HLN2:30 pmHelena

8h 02m

1 stop

SAT11:32 pmSan Antonio

$359

United Airlines

Apr 2

SAT8:45 amSan Antonio

5h 54m

1 stop

HLN1:39 pmHelena

Apr 5

HLN6:15 amHelena

10h 28m

2 stops

SAT5:43 pmSan Antonio

$430

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 4/2

8:45 am-1:39 pm

1 stop5h 54m

Helena

Sun 4/5

2:25 pm-8:42 pm

1 stop5h 17m

$344

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

4:40 pm-9:25 pm

1 stop5h 45m

Helena

Mon 3/23

2:30 pm-11:32 pm

1 stop8h 02m

$359

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 4/2

8:45 am-1:39 pm

1 stop5h 54m

Helena

Sun 4/5

6:15 am-5:43 pm

2 stops10h 28m

$430

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

5:00 am-1:38 pm

2 stops9h 38m

Helena

Mon 3/23

2:30 pm-11:32 pm

1 stop8h 02m

$438

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

8:51 am-1:38 pm

1 stop5h 47m

Helena

Sun 3/22

2:30 pm-11:32 pm

1 stop8h 02m

$519

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

5:00 am-1:38 pm

2 stops9h 38m

Helena

Sun 3/22

2:30 pm-11:32 pm

1 stop8h 02m

$524

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

5:00 am-1:38 pm

2 stops9h 38m

Helena

Mon 3/23

2:30 pm-10:57 pm

2 stops7h 27m

$719

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 4/2

11:46 am-9:33 pm

2 stops10h 47m

Helena

Sun 4/5

6:15 am-7:48 pm

2 stops12h 33m

$795

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Thu 3/19

6:00 am-5:45 pm

2 stops12h 45m

Helena

Sun 3/22

6:22 pm-11:39 pm

2 stops28h 17m

$871

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Mon 3/16

4:40 pm-9:25 pm

1 stop5h 45m

Helena

Fri 3/20

2:30 pm-10:57 pm

2 stops7h 27m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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?

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

What airlines fly to Helena?

United Airlines, Delta and American Airlines 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 39% 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

Fastest flight time	5h 45m
Direct flights	None

The fastest flight from San Antonio to Helena takes 5h 45m

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

Search flight deals

How far is San Antonio to Helena by plane?
A flight from San Antonio to Helena will travel around 1391.2 mi. 5h 45m 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.