HLN - SAT

$305 Find Cheap Flights from Helena to San Antonio - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to San Antonio departing on 6/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to San Antonio, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$329
Alaska Airlines
Tue 12/8Thu 12/10
HLN - SAT • 1 stop
Cheapest one-way
$305
Alaska Airlines
Mon 6/29
HLN - SAT • 1 stop
Top airlines
Cheapest • from $329 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Helena and San Antonio. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $440 (round-trip)
Shortest trip • 5h 57m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Helena to San Antonio (HLN-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to San Antonio

Tue, Dec 8 - Thu, Dec 10
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
Alaska Airlines Logo
4:08 pm - 2:40 pm
HLN
-
SAT
21h 32m
2 stops
Alaska Airlines Logo
7:37 pm - 3:31 pm
SAT
-
HLN
20h 54m
1 stop
$395Alaska 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
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 - 10:51 pm
HLN
-
SAT
7h 21m
2 stops
United Airlines Logo
4:50 pm - 9:18 pm
SAT
-
HLN
5h 28m
1 stop
$424United Airlines
Tue, Oct 20 - Sat, Oct 24
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, Dec 8 - Thu, Dec 10
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
1:50 pm - 3:31 pm
SAT
-
HLN
26h 41m
2 stops
$439Alaska Airlines
Fri, Jul 10 - Mon, Jul 13
Delta Logo
5:40 am - 1:36 pm
HLN
-
SAT
6h 56m
1 stop
Delta Logo
6:03 pm - 10:39 pm
SAT
-
HLN
5h 36m
1 stop
$464Delta
Fri, Jul 10 - Mon, Jul 13
Delta Logo
12:55 pm - 11:54 pm
HLN
-
SAT
9h 59m
2 stops
Delta Logo
6:03 pm - 10:39 pm
SAT
-
HLN
5h 36m
1 stop
$469Delta
Tue, Oct 20 - Sat, Oct 24
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
$479United Airlines
Booking Insights

KAYAK's insights & trends for Helena to San Antonio flights

Get data-powered insights and trends into flights from Helena to San Antonio to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Helena to San Antonio?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Helena to San Antonio were found on Alaska Airlines ($329) and United Airlines ($419).

Good to know

Cheapest flight$305
Flight from Helena to San Antonio

When to book flights from Helena to San Antonio

Are your dates flexible? Find out the best times to travel from Helena to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to San Antonio

  • What is the cheapest flight from Helena to San Antonio?

    In the last 5 days, the lowest price for a flight from Helena to San Antonio was $305 for a one-way ticket and $329 for a round-trip.

  • Do I need a passport to fly between Helena and San Antonio?

    No, a passport isn't needed to fly from Helena to San Antonio. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Helena to San Antonio?

    Helena and San Antonio are both served by 1 main airport. You will leave Helena from Helena and will be arriving at San Antonio.

  • Which aircraft models fly most regularly from Helena to San Antonio?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helena to San Antonio?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Helena and San Antonio, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Helena to San Antonio, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Helena to San Antonio are Delta and United Airlines. With an average price for the route of $438 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $606 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Helena to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Helena with another airline. Booking your flights between Helena and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Helena to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Helena to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8417 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

We sat on the runway for over an hour before departure. That was unwelcome.

6.0 GoodAnonymous, Jun 2026
SEA - SFO
Read more Delta reviews

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

This planes staff was top tier. Everything went great and had a great flight home.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

The flight had a delay but I made it to my connection. Flight was smooth overall

No screens or meal options. Freezing cold. Dirty seats. Left late.

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

Everything you need to know for your flight from Helena to San Antonio

Information on your arrival and departure airports