When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to Helena Airport?

Prices for flights from Santa Rosa Sonoma County Airport to Helena Airport are updated daily.

How old do you have to be to fly from Santa Rosa Sonoma County Airport to Helena 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 Santa Rosa Sonoma County 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.

$293 Cheap Flights from Santa Rosa to Helena in 2026

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0 bags

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Find the cheapest flights from Santa Rosa to Helena

Round-trip

One-way

Cheap round-trip flights

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7:57 pm - 3:59 pm

STS

HLN

19h 02m

1 stop

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$293Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:57 pm - 3:59 pm

STS

HLN

19h 02m

1 stop

4:36 pm - 11:57 pm

HLN

STS

32h 21m

2 stops

$368Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

2:50 pm - 3:59 pm

STS

HLN

24h 09m

2 stops

4:36 pm - 11:57 pm

HLN

STS

32h 21m

2 stops

$403Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:15 am - 3:59 pm

STS

HLN

31h 44m

2 stops

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$433Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:57 pm - 3:59 pm

STS

HLN

19h 02m

1 stop

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$452Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:15 am - 3:59 pm

STS

HLN

31h 44m

2 stops

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$455Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:15 am - 3:59 pm

STS

HLN

31h 44m

2 stops

4:36 pm - 11:57 pm

HLN

STS

32h 21m

2 stops

$471Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:57 pm - 3:59 pm

STS

HLN

19h 02m

1 stop

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$500Alaska Airlines

Sat, Feb 28 - Wed, Mar 4

7:00 am - 3:59 pm

STS

HLN

31h 59m

2 stops

4:36 pm - 11:57 pm

HLN

STS

32h 21m

2 stops

$556Alaska Airlines

Tue, Feb 24 - Sat, Feb 28

11:07 am - 3:59 pm

STS

HLN

27h 52m

2 stops

4:36 pm - 9:52 pm

HLN

STS

6h 16m

1 stop

$589Alaska Airlines

Tue, Feb 24 - Sat, Feb 28

Alaska Airlines flights from Santa Rosa to Helena

Our best Alaska Airlines deals on Santa Rosa to Helena flight tickets

Alaska Airlines

Feb 28

STS7:57 pmSanta Rosa Sonoma County

19h 02m

1 stop

HLN3:59 pmHelena

Mar 4

HLN4:36 pmHelena

6h 16m

1 stop

STS9:52 pmSanta Rosa Sonoma County

$293

Alaska Airlines

Feb 28

STS7:57 pmSanta Rosa Sonoma County

19h 02m

1 stop

HLN3:59 pmHelena

Mar 4

HLN4:36 pmHelena

32h 21m

2 stops

STS11:57 pmSanta Rosa Sonoma County

$368

Alaska Airlines

Feb 28

STS2:50 pmSanta Rosa Sonoma County

24h 09m

2 stops

HLN3:59 pmHelena

Mar 4

HLN4:36 pmHelena

32h 21m

2 stops

STS11:57 pmSanta Rosa Sonoma County

$403

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-3:59 pm

1 stop19h 02m

Helena

Wed 3/4

4:36 pm-9:52 pm

1 stop6h 16m

$293

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-3:59 pm

1 stop19h 02m

Helena

Wed 3/4

4:36 pm-11:57 pm

2 stops32h 21m

$368

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

2:50 pm-3:59 pm

2 stops24h 09m

Helena

Wed 3/4

4:36 pm-11:57 pm

2 stops32h 21m

$403

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:15 am-3:59 pm

2 stops31h 44m

Helena

Wed 3/4

4:36 pm-9:52 pm

1 stop6h 16m

$433

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-3:59 pm

1 stop19h 02m

Helena

Wed 3/4

4:36 pm-9:52 pm

1 stop6h 16m

$452

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:15 am-3:59 pm

2 stops31h 44m

Helena

Wed 3/4

4:36 pm-9:52 pm

1 stop6h 16m

$455

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:15 am-3:59 pm

2 stops31h 44m

Helena

Wed 3/4

4:36 pm-11:57 pm

2 stops32h 21m

$471

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-3:59 pm

1 stop19h 02m

Helena

Wed 3/4

4:36 pm-9:52 pm

1 stop6h 16m

$500

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Tue 2/24

7:00 am-3:59 pm

2 stops31h 59m

Helena

Sat 2/28

4:36 pm-11:57 pm

2 stops32h 21m

$556

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Tue 2/24

11:07 am-3:59 pm

2 stops27h 52m

Helena

Sat 2/28

4:36 pm-9:52 pm

1 stop6h 16m

$589

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Santa Rosa 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, Alaska Airlines and Delta are the top three most popular airlines that fly to Helena from Santa Rosa according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 7 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 Santa Rosa to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Santa Rosa to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Santa Rosa to Helena (STS to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santa Rosa to Helena

Fastest flight time	31h 44m
Direct flights	None

The fastest flight from Santa Rosa to Helena takes 31h 44m

There are no direct flights from Santa Rosa to Helena. There are no popular flight routes from Santa Rosa to Helena.

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How far is Santa Rosa Sonoma County to Helena by plane?
Santa Rosa Sonoma County and Helena are 781.0 mi apart from one another. Flights usually cover this in 31h 44m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to Helena Airport?
Prices for flights from Santa Rosa Sonoma County Airport to Helena Airport are updated daily.
How old do you have to be to fly from Santa Rosa Sonoma County Airport to Helena 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 Santa Rosa Sonoma County 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 Santa Rosa to Helena?

It is quick and easy to find Santa Rosa to Helena 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 Helena that suits you.

Can I find flights from Santa Rosa to Helena with flexible booking policies on momondo?

All flight searches from Santa Rosa to Helena on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Santa Rosa to Helena?

momondo helps you find the best flight between Santa Rosa and Helena by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Santa Rosa to Helena right now. Can momondo alert me if prices change?

Price alerts on flights to Helena from Santa Rosa 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.