HLN - SAT

$340 Find Cheap Flights from Helena to San Antonio

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to San Antonio departing on 8/28. 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

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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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

Thu, Aug 28 - Sun, Aug 31
Hawaiian Airlines Logo
4:02 pm - 11:59 pmHLN-SAT
6h 57m1 stop
Hawaiian Airlines Logo
6:30 am - 3:21 pmSAT-HLN
9h 51m1 stop
$340Hawaiian Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31
Hawaiian Airlines Logo
4:02 pm - 11:59 pmHLN-SAT
6h 57m1 stop
Hawaiian Airlines Logo
6:30 am - 3:21 pmSAT-HLN
9h 51m1 stop
$414Hawaiian Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31
Delta Logo
1:00 pm - 11:54 pmHLN-SAT
9h 54m2 stops
Delta Logo
7:30 am - 12:20 pmSAT-HLN
5h 50m1 stop
$420Delta
Find Deal
Thu, Aug 28 - Sun, Aug 31
United Airlines Logo
2:30 pm - 8:46 pmHLN-SAT
5h 16m1 stop
United Airlines Logo
7:15 am - 4:04 pmSAT-HLN
9h 49m2 stops
$426United Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31
Delta Logo
5:50 am - 2:50 pmHLN-SAT
8h 00m2 stops
Delta Logo
2:29 pm - 10:13 pmSAT-HLN
8h 44m2 stops
$497Delta
Find Deal
Sun, Dec 7 - Wed, Dec 10
Delta Logo
5:40 am - 1:32 pmHLN-SAT
6h 52m1 stop
Delta Logo
12:50 pm - 10:37 pmSAT-HLN
10h 47m2 stops
$502Delta
Find Deal
Thu, Aug 28 - Sun, Aug 31
United Airlines Logo
5:20 pm - 1:22 pmHLN-SAT
19h 02m2 stops
United Airlines Logo
5:30 am - 4:04 pmSAT-HLN
11h 34m2 stops
$547United Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
Alaska Airlines Logo
4:10 pm - 5:58 pmHLN-SAT
24h 48m1 stop
Alaska Airlines Logo
7:00 am - 3:43 pmSAT-HLN
9h 43m1 stop
$595Alaska Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
Delta Logo
5:40 am - 1:32 pmHLN-SAT
6h 52m1 stop
Delta Logo
10:45 am - 10:37 pmSAT-HLN
12h 52m2 stops
$604Delta
Find Deal
Sun, Dec 7 - Wed, Dec 10
Delta Logo
5:40 am - 5:16 pmHLN-SAT
10h 36m2 stops
Delta Logo
12:50 pm - 10:37 pmSAT-HLN
10h 47m2 stops
$647Delta
Find Deal
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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.

What’s the cheapest day of the week to fly from Helena to San Antonio?

The average price of all round-trip flights from Helena to San Antonio clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Antonio on a Thursday and more expensive on a Sunday. On your return trip to Helena, you should consider flying back on a Tuesday, and avoid Wednesdays for better deals.

Good to know

Low seasonMay
High seasonOctober
Cheapest flight$340
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 23% increase in price.
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 3 days, the lowest price for a flight from Helena to San Antonio was $340 for a round-trip ticket.

  • 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, Star Alliance, and oneworld 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 $456 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $559 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.
8.0
DeltaOverall score based on 7964 reviews
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Plane still had screens for watching movies. Good selection too.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

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

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