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Cheap flights from Helena to San Antonio from $205

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to San Antonio departing on 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helena to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:08 pm - 6:38 pm
HLN
-
SAT
25h 30m
1 stop
Alaska Airlines Logo
7:37 pm - 3:31 pm
SAT
-
HLN
20h 54m
1 stop
$329Alaska Airlines
Tue, Dec 8 - Thu, Dec 10
Delta Logo
7:15 am - 1:40 pm
HLN
-
SAT
5h 25m
1 stop
Delta Logo
8:00 am - 10:24 pm
SAT
-
HLN
15h 24m
2 stops
$334Delta
Wed, Sep 30 - Mon, Oct 5
Delta Logo
12:57 pm - 12:13 am
HLN
-
SAT
10h 16m
2 stops
Delta Logo
10:59 am - 10:24 pm
SAT
-
HLN
12h 25m
2 stops
$339Delta
Wed, Sep 30 - Mon, Oct 5
Delta Logo
12:50 pm - 11:18 pm
HLN
-
SAT
9h 28m
2 stops
Delta Logo
8:00 am - 12:24 pm
SAT
-
HLN
5h 24m
1 stop
$369Delta
Fri, Oct 9 - Sun, Oct 11
United Airlines Logo
2:30 pm - 8:42 pm
HLN
-
SAT
5h 12m
1 stop
United Airlines Logo
4:50 pm - 9:18 pm
SAT
-
HLN
5h 28m
1 stop
$419United Airlines
Tue, Oct 20 - Sat, Oct 24
United Airlines Logo
2:30 pm - 8:42 pm
HLN
-
SAT
5h 12m
1 stop
United Airlines Logo
5:30 am - 1:48 pm
SAT
-
HLN
9h 18m
2 stops
$424United Airlines
Tue, Oct 20 - Sat, Oct 24
Delta Logo
5:45 am - 5:18 pm
HLN
-
SAT
10h 33m
2 stops
Delta Logo
10:45 am - 10:41 pm
SAT
-
HLN
12h 56m
2 stops
$428Delta
Tue, Nov 24 - Tue, Dec 1
United Airlines Logo
2:30 pm - 10:51 pm
HLN
-
SAT
7h 21m
2 stops
United Airlines Logo
9:58 am - 9:18 pm
SAT
-
HLN
12h 20m
2 stops
$429United Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
4:08 pm - 6:38 pm
HLN
-
SAT
25h 30m
1 stop
Alaska Airlines Logo
3:12 pm - 3:31 pm
SAT
-
HLN
25h 19m
2 stops
$434Alaska Airlines
Tue, Dec 8 - Thu, Dec 10
Alaska Airlines Logo
4:08 pm - 2:40 pm
HLN
-
SAT
21h 32m
2 stops
Alaska Airlines Logo
8:58 am - 3:31 pm
SAT
-
HLN
31h 33m
2 stops
$439Alaska Airlines
Tue, Dec 8 - Thu, Dec 10

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Alaska Airlines flights from Helena to San Antonio

Our best Alaska Airlines deals on Helena to San Antonio flight tickets
Alaska Airlines
Dec 8
HLN4:08 pmHelena
25h 30m
1 stop
SAT6:38 pmSan Antonio
Dec 10
SAT7:37 pmSan Antonio
20h 54m
1 stop
HLN3:31 pmHelena
$329
Alaska Airlines
Dec 8
HLN4:08 pmHelena
25h 30m
1 stop
SAT6:38 pmSan Antonio
Dec 10
SAT3:12 pmSan Antonio
25h 19m
2 stops
HLN3:31 pmHelena
$434
Alaska Airlines
Dec 8
HLN4:08 pmHelena
21h 32m
2 stops
SAT2:40 pmSan Antonio
Dec 10
SAT8:58 amSan Antonio
31h 33m
2 stops
HLN3:31 pmHelena
$439

United Airlines flights from Helena to San Antonio

Our best United Airlines deals on Helena to San Antonio flight tickets
United Airlines
Oct 20
HLN2:30 pmHelena
5h 12m
1 stop
SAT8:42 pmSan Antonio
Oct 24
SAT4:50 pmSan Antonio
5h 28m
1 stop
HLN9:18 pmHelena
$419
United Airlines
Oct 20
HLN2:30 pmHelena
5h 12m
1 stop
SAT8:42 pmSan Antonio
Oct 24
SAT5:30 amSan Antonio
9h 18m
2 stops
HLN1:48 pmHelena
$424
United Airlines
Oct 20
HLN2:30 pmHelena
7h 21m
2 stops
SAT10:51 pmSan Antonio
Oct 24
SAT9:58 amSan Antonio
12h 20m
2 stops
HLN9:18 pmHelena
$429

momondo Fare Finder

 
Customize your flight search to find flights from Helena to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Helena to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 12/8

4:08 pm-6:38 pm

1 stop25h 30m

San Antonio

Thu 12/10

7:37 pm-3:31 pm

1 stop20h 54m

$329

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Wed 9/30

7:15 am-1:40 pm

1 stop5h 25m

San Antonio

Mon 10/5

8:00 am-10:24 pm

2 stops15h 24m

$334

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Wed 9/30

12:57 pm-12:13 am

2 stops10h 16m

San Antonio

Mon 10/5

10:59 am-10:24 pm

2 stops12h 25m

$339

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Fri 10/9

12:50 pm-11:18 pm

2 stops9h 28m

San Antonio

Sun 10/11

8:00 am-12:24 pm

1 stop5h 24m

$369
Quickest round-trip

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 10/20

2:30 pm-8:42 pm

1 stop5h 12m

San Antonio

Sat 10/24

4:50 pm-9:18 pm

1 stop5h 28m

$419

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 10/20

2:30 pm-8:42 pm

1 stop5h 12m

San Antonio

Sat 10/24

5:30 am-1:48 pm

2 stops9h 18m

$424

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 11/24

5:45 am-5:18 pm

2 stops10h 33m

San Antonio

Tue 12/1

10:45 am-10:41 pm

2 stops12h 56m

$428

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 10/20

2:30 pm-10:51 pm

2 stops7h 21m

San Antonio

Sat 10/24

9:58 am-9:18 pm

2 stops12h 20m

$429

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 12/8

4:08 pm-6:38 pm

1 stop25h 30m

San Antonio

Thu 12/10

3:12 pm-3:31 pm

2 stops25h 19m

$434

HelenaSan Antonio

HLN - SAT

HLNSAT

Helena

Tue 12/8

4:08 pm-2:40 pm

2 stops21h 32m

San Antonio

Thu 12/10

8:58 am-3:31 pm

2 stops31h 33m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to San Antonio from

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

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

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 51% 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 37m

Direct flights

None
The fastest flight from Helena to San Antonio takes 5h 37m
There are no direct flights from Helena to San Antonio. There are no popular flight routes from Helena to San Antonio.
Search flight deals

Frequently asked questions about flying from Helena to San Antonio

  • 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 37m, 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?

  • 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?

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
DeltaPriceFrom $288Free CancellationRating
7.8
8,432 reviews
Search Delta flights
United AirlinesPriceFrom $382Free CancellationRating
7.4
9,881 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Pleasanton
Boerne
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.

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