STS - HLN

$253 Find Cheap Flights from Santa Rosa to Helena - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest one-way
$253
Typical prices: $490-$490
Delta
Sun 12/23
STS - HLN • 1 stop
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Flight Deals

Cheap Flights from Santa Rosa to Helena (STS-HLN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Santa Rosa to Helena

Wed, Dec 9 - Sat, Dec 12
Alaska Airlines Logo
6:28 am - 4:12 pmSTS  Santa Rosa Sonoma County-HLN Helena
32h 44m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 10:43 amHLN  Helena-STS Santa Rosa Sonoma County
18h 54m2 stops Seattle/Tacoma Intl San Diego
$458Alaska Airlines
Wed, Dec 9 - Sat, Dec 12
Alaska Airlines Logo
6:40 am - 4:12 pmSTS  Santa Rosa Sonoma County-HLN Helena
8h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 5:49 pmHLN  Helena-STS Santa Rosa Sonoma County
26h 00m1 stop Seattle/Tacoma Intl
$463Alaska Airlines
Wed, Dec 9 - Sat, Dec 12
Alaska Airlines Logo
6:40 am - 4:12 pmSTS  Santa Rosa Sonoma County-HLN Helena
8h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 6:21 pmHLN  Helena-STS Santa Rosa Sonoma County
26h 32m2 stops Seattle/Tacoma Intl Hollywood Burbank
$468Alaska Airlines
Wed, Dec 9 - Sat, Dec 12
Alaska Airlines Logo
6:28 am - 4:12 pmSTS  Santa Rosa Sonoma County-HLN Helena
32h 44m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 10:27 pmHLN  Helena-STS Santa Rosa Sonoma County
30h 38m2 stops Seattle/Tacoma Intl Santa Ana J. Wayne/Orange Cnty
$481Alaska Airlines
Wed, Dec 9 - Sat, Dec 12
Alaska Airlines Logo
4:25 pm - 4:12 pmSTS  Santa Rosa Sonoma County-HLN Helena
22h 47m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 7:35 pmHLN  Helena-STS Santa Rosa Sonoma County
27h 46m2 stops Seattle/Tacoma Intl Los Angeles
$489Alaska Airlines
Sun, Jan 17 - Sat, Jan 23
Alaska Airlines Logo
7:00 am - 4:23 pmSTS  Santa Rosa Sonoma County-HLN Helena
8h 23m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 9:20 amHLN  Helena-STS Santa Rosa Sonoma County
17h 20m2 stops Seattle/Tacoma Intl Portland
$544Alaska Airlines
Sun, Jan 17 - Sat, Jan 23
Delta Logo
7:00 am - 12:32 pmSTS  Santa Rosa Sonoma County-HLN Helena
4h 32m1 stop Salt Lake City
Delta Logo
7:10 am - 12:04 pmHLN  Helena-STS Santa Rosa Sonoma County
5h 54m1 stop Salt Lake City
$545Delta
Sun, Jan 17 - Sat, Jan 23
Alaska Airlines Logo
6:30 am - 4:23 pmSTS  Santa Rosa Sonoma County-HLN Helena
8h 53m2 stops Los Angeles Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 9:20 amHLN  Helena-STS Santa Rosa Sonoma County
17h 20m2 stops Seattle/Tacoma Intl Portland
$574Alaska Airlines
Wed, Nov 11 - Sun, Nov 15
Delta Logo
4:47 pm - 10:26 pmSTS  Santa Rosa Sonoma County-HLN Helena
4h 39m1 stop Salt Lake City
Delta Logo
7:00 am - 10:43 amHLN  Helena-STS Santa Rosa Sonoma County
4h 43m1 stop Salt Lake City
$765Delta
Wed, Nov 11 - Sun, Nov 15
Alaska Airlines Logo
1:26 pm - 4:04 pmSTS  Santa Rosa Sonoma County-HLN Helena
49h 38m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
4:41 pm - 1:57 pmHLN  Helena-STS Santa Rosa Sonoma County
46h 16m2 stops Seattle/Tacoma Intl San Diego
$795Alaska Airlines
Booking Insights

Price, demand and travel trends for Santa Rosa to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Santa Rosa to Helena?

Alaska Airlines ($458) and Delta ($545) are the cheapest airlines to fly round-trip from Santa Rosa to Helena according to KAYAK data over the last 5 days.

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Key details for Santa Rosa to Helena flights

Cheapest flight

$253
One-way flight from Santa Rosa to Helena

When to book flights from Santa Rosa to Helena

Are your dates flexible? Find out the best times to travel from Santa Rosa to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Santa Rosa to Helena flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Do I need a passport to fly from Santa Rosa to Helena?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • Have flight prices from Santa Rosa to Helena changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $458 to $882. That means the highest observed fare was about 92% higher than the lowest one.

  • How are flight prices from Santa Rosa to Helena looking right now?

    One-way fares from Santa Rosa to Helena are currently lower than usual. Average one-way flight prices are about $360, which is 27% below the typical average for this route.

  • What car rental options are available at Helena Airport (HLN)?

    Helena Airport (HLN) hosts 5 major car rental companies, with daily rates averaging $83 for economy cars. Top options include:

    • Budget
    • Enterprise Rent-A-Car
    • Hertz
    • Avis
    • National

  • Which airports can I use when flying from Santa Rosa to Helena?

    Flights from Santa Rosa to Helena usually depart from Santa Rosa Sonoma County (STS) and arrive at Helena (HLN).

  • What is the time difference between Santa Rosa and Helena?

    Helena is 1 hour ahead of Santa Rosa (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Santa Rosa to Helena flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Santa Rosa to Helena

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