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.

$374 Cheap Flights from San Antonio to Helena in 2026

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.

6:03 pm - 10:31 pm

SAT

HLN

5h 28m

1 stop

1:00 pm - 9:23 pm

HLN

SAT

7h 23m

1 stop

$374Delta

Tue, Jun 23 - Sat, Jul 4

6:03 pm - 10:31 pm

SAT

HLN

5h 28m

1 stop

1:00 pm - 11:52 pm

HLN

SAT

9h 52m

2 stops

$379Delta

Tue, Jun 23 - Fri, Jul 3

2:30 pm - 10:31 pm

SAT

HLN

9h 01m

2 stops

1:00 pm - 11:52 pm

HLN

SAT

9h 52m

2 stops

$384Delta

Tue, Jun 23 - Fri, Jul 3

6:30 am - 12:20 pm

SAT

HLN

6h 50m

1 stop

1:00 pm - 9:23 pm

HLN

SAT

7h 23m

1 stop

$399Delta

Sat, Jun 20 - Sat, Jul 4

4:35 pm - 9:20 pm

SAT

HLN

5h 45m

1 stop

2:20 pm - 10:42 pm

HLN

SAT

7h 22m

2 stops

$404United Airlines

Sat, Jun 20 - Wed, Jun 24

6:03 pm - 10:31 pm

SAT

HLN

5h 28m

1 stop

5:35 am - 1:40 pm

HLN

SAT

7h 05m

1 stop

$409Delta

Sun, Jun 21 - Fri, Jul 3

6:03 pm - 10:31 pm

SAT

HLN

5h 28m

1 stop

1:00 pm - 11:52 pm

HLN

SAT

9h 52m

2 stops

$414Delta

Sun, Jun 21 - Fri, Jul 3

4:45 pm - 8:59 pm

SAT

HLN

5h 14m

1 stop

7:00 am - 1:05 pm

HLN

SAT

5h 05m

1 stop

$419United Airlines

Sat, Nov 14 - Wed, Nov 18

12:24 pm - 8:59 pm

SAT

HLN

9h 35m

2 stops

7:00 am - 1:05 pm

HLN

SAT

5h 05m

1 stop

$424United Airlines

Sat, Nov 14 - Wed, Nov 18

8:55 am - 1:27 pm

SAT

HLN

5h 32m

1 stop

7:00 am - 1:05 pm

HLN

SAT

5h 05m

1 stop

$429United Airlines

Sat, Nov 14 - Wed, Nov 18

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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

Jun 20

SAT4:35 pmSan Antonio

5h 45m

1 stop

HLN9:20 pmHelena

Jun 24

HLN2:20 pmHelena

7h 22m

2 stops

SAT10:42 pmSan Antonio

$404

United Airlines

Nov 14

SAT4:45 pmSan Antonio

5h 14m

1 stop

HLN8:59 pmHelena

Nov 18

HLN7:00 amHelena

5h 05m

1 stop

SAT1:05 pmSan Antonio

$419

United Airlines

Nov 14

SAT12:24 pmSan Antonio

9h 35m

2 stops

HLN8:59 pmHelena

Nov 18

HLN7:00 amHelena

5h 05m

1 stop

SAT1:05 pmSan Antonio

$424

Delta flights from San Antonio to Helena

Our best Delta deals on San Antonio to Helena flight tickets

Delta

Jun 23

SAT6:03 pmSan Antonio

5h 28m

1 stop

HLN10:31 pmHelena

Jul 4

HLN1:00 pmHelena

7h 23m

1 stop

SAT9:23 pmSan Antonio

$374

Delta

Jun 23

SAT2:30 pmSan Antonio

9h 01m

2 stops

HLN10:31 pmHelena

Jul 2

HLN5:35 amHelena

7h 05m

1 stop

SAT1:40 pmSan Antonio

$379

Delta

Jun 23

SAT2:30 pmSan Antonio

9h 01m

2 stops

HLN10:31 pmHelena

Jul 3

HLN1:00 pmHelena

9h 52m

2 stops

SAT11:52 pmSan Antonio

$384

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 6/23

6:03 pm-10:31 pm

1 stop5h 28m

Helena

Sat 7/4

1:00 pm-9:23 pm

1 stop7h 23m

$374

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 6/23

6:03 pm-10:31 pm

1 stop5h 28m

Helena

Fri 7/3

1:00 pm-11:52 pm

2 stops9h 52m

$379

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 6/23

2:30 pm-10:31 pm

2 stops9h 01m

Helena

Fri 7/3

1:00 pm-11:52 pm

2 stops9h 52m

$384

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 6/20

6:30 am-12:20 pm

1 stop6h 50m

Helena

Sat 7/4

1:00 pm-9:23 pm

1 stop7h 23m

$399

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 6/20

4:35 pm-9:20 pm

1 stop5h 45m

Helena

Wed 6/24

2:20 pm-10:42 pm

2 stops7h 22m

$404

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sun 6/21

6:03 pm-10:31 pm

1 stop5h 28m

Helena

Fri 7/3

5:35 am-1:40 pm

1 stop7h 05m

$409

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sun 6/21

6:03 pm-10:31 pm

1 stop5h 28m

Helena

Fri 7/3

1:00 pm-11:52 pm

2 stops9h 52m

$414

Quickest round-trip

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 11/14

4:45 pm-8:59 pm

1 stop5h 14m

Helena

Wed 11/18

7:00 am-1:05 pm

1 stop5h 05m

$419

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 11/14

12:24 pm-8:59 pm

2 stops9h 35m

Helena

Wed 11/18

7:00 am-1:05 pm

1 stop5h 05m

$424

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Sat 11/14

8:55 am-1:27 pm

1 stop5h 32m

Helena

Wed 11/18

7:00 am-1:05 pm

1 stop5h 05m

$429

Flights are sorted by cheapest round-trip flights first.

Sorted 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 airlines fly to Helena?

United Airlines, Southwest and Delta 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 43% 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 28m
Direct flights	None

The fastest flight from San Antonio to Helena takes 5h 28m

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 28m 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.