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.

$429 Cheap Flights from San Antonio to Helena in 2026

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.

4:45 pm - 8:59 pm

SAT

HLN

5h 14m

1 stop

2:30 pm - 9:07 pm

HLN

SAT

5h 37m

1 stop

$429United Airlines

Tue, Dec 8 - Sat, Dec 12

9:10 am - 1:45 pm

SAT

HLN

5h 35m

1 stop

6:15 am - 7:58 pm

HLN

SAT

12h 43m

2 stops

$434United Airlines

Tue, Sep 1 - Sat, Sep 5

12:00 pm - 9:30 pm

SAT

HLN

10h 30m

2 stops

6:15 am - 7:58 pm

HLN

SAT

12h 43m

2 stops

$439United Airlines

Tue, Sep 1 - Sat, Sep 5

4:45 pm - 8:59 pm

SAT

HLN

5h 14m

1 stop

2:30 pm - 9:07 pm

HLN

SAT

5h 37m

1 stop

$464United Airlines

Tue, Dec 8 - Sat, Dec 12

12:24 pm - 8:59 pm

SAT

HLN

9h 35m

2 stops

2:30 pm - 9:07 pm

HLN

SAT

5h 37m

1 stop

$469United Airlines

Tue, Dec 8 - Sat, Dec 12

8:55 am - 1:27 pm

SAT

HLN

5h 32m

1 stop

2:30 pm - 10:48 pm

HLN

SAT

7h 18m

2 stops

$534United Airlines

Tue, Dec 8 - Sat, Dec 12

4:44 pm - 4:32 pm

SAT

HLN

24h 48m

1 stop

5:32 pm - 4:13 pm

HLN

SAT

21h 41m

1 stop

$564Alaska Airlines

Mon, Aug 17 - Fri, Aug 21

12:24 pm - 8:59 pm

SAT

HLN

9h 35m

2 stops

2:30 pm - 10:48 pm

HLN

SAT

7h 18m

2 stops

$574United Airlines

Tue, Dec 8 - Sat, Dec 12

10:00 am - 8:59 pm

SAT

HLN

11h 59m

2 stops

2:30 pm - 10:48 pm

HLN

SAT

7h 18m

2 stops

$638United Airlines

Tue, Dec 8 - Sat, Dec 12

2:57 pm - 4:32 pm

SAT

HLN

26h 35m

2 stops

5:32 pm - 4:13 pm

HLN

SAT

21h 41m

1 stop

$704Alaska Airlines

Mon, Aug 17 - Fri, Aug 21

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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

Dec 8

SAT4:45 pmSan Antonio

5h 14m

1 stop

HLN8:59 pmHelena

Dec 12

HLN2:30 pmHelena

5h 37m

1 stop

SAT9:07 pmSan Antonio

$429

United Airlines

Sep 1

SAT9:10 amSan Antonio

5h 35m

1 stop

HLN1:45 pmHelena

Sep 5

HLN6:15 amHelena

12h 43m

2 stops

SAT7:58 pmSan Antonio

$434

United Airlines

Sep 1

SAT12:00 pmSan Antonio

10h 30m

2 stops

HLN9:30 pmHelena

Sep 5

HLN6:15 amHelena

12h 43m

2 stops

SAT7:58 pmSan Antonio

$439

Delta flights from San Antonio to Helena

Our best Delta deals on San Antonio to Helena flight tickets

Delta

Aug 6

SAT6:50 amSan Antonio

6h 25m

1 stop

HLN12:15 pmHelena

Aug 10

HLN12:55 pmHelena

10h 01m

2 stops

SAT11:56 pmSan Antonio

$967

Delta

Aug 8

SAT10:53 amSan Antonio

12h 37m

2 stops

HLN10:30 pmHelena

Aug 10

HLN12:55 pmHelena

10h 01m

2 stops

SAT11:56 pmSan Antonio

$972

Delta

Aug 7

SAT2:22 pmSan Antonio

9h 08m

2 stops

HLN10:30 pmHelena

Aug 10

HLN12:55 pmHelena

10h 01m

2 stops

SAT11:56 pmSan Antonio

$1,207

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

4:45 pm-8:59 pm

1 stop5h 14m

Helena

Sat 12/12

2:30 pm-9:07 pm

1 stop5h 37m

$429

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 9/1

9:10 am-1:45 pm

1 stop5h 35m

Helena

Sat 9/5

6:15 am-7:58 pm

2 stops12h 43m

$434

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 9/1

12:00 pm-9:30 pm

2 stops10h 30m

Helena

Sat 9/5

6:15 am-7:58 pm

2 stops12h 43m

$439

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

4:45 pm-8:59 pm

1 stop5h 14m

Helena

Sat 12/12

2:30 pm-9:07 pm

1 stop5h 37m

$464

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

12:24 pm-8:59 pm

2 stops9h 35m

Helena

Sat 12/12

2:30 pm-9:07 pm

1 stop5h 37m

$469

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

8:55 am-1:27 pm

1 stop5h 32m

Helena

Sat 12/12

2:30 pm-10:48 pm

2 stops7h 18m

$534

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Mon 8/17

4:44 pm-4:32 pm

1 stop24h 48m

Helena

Fri 8/21

5:32 pm-4:13 pm

1 stop21h 41m

$564

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

12:24 pm-8:59 pm

2 stops9h 35m

Helena

Sat 12/12

2:30 pm-10:48 pm

2 stops7h 18m

$574

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Tue 12/8

10:00 am-8:59 pm

2 stops11h 59m

Helena

Sat 12/12

2:30 pm-10:48 pm

2 stops7h 18m

$638

San AntonioHelena

SAT - HLN

SATHLN

San Antonio

Mon 8/17

2:57 pm-4:32 pm

2 stops26h 35m

Helena

Fri 8/21

5:32 pm-4:13 pm

1 stop21h 41m

$704

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 46% 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 14m
Direct flights	None

The fastest flight from San Antonio to Helena takes 5h 14m

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 14m 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.