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.

$294 Cheap Flights from Santa Rosa to Helena in 2026

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Find the cheapest flights from Santa Rosa to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:09 pm - 4:06 pm

STS

HLN

25h 57m

1 stop

4:43 pm - 11:58 am

HLN

STS

20h 15m

1 stop

$456Alaska Airlines

Thu, Jun 4 - Tue, Jun 9

1:09 pm - 4:06 pm

STS

HLN

25h 57m

1 stop

4:43 pm - 5:16 pm

HLN

STS

25h 33m

2 stops

$523Alaska Airlines

Thu, Jun 4 - Tue, Jun 9

6:59 pm - 4:06 pm

STS

HLN

20h 07m

2 stops

5:09 pm - 5:16 pm

HLN

STS

25h 07m

2 stops

$526Alaska Airlines

Mon, Jun 8 - Mon, Jun 15

7:40 pm - 4:06 pm

STS

HLN

43h 26m

2 stops

4:43 pm - 10:58 pm

HLN

STS

31h 15m

2 stops

$544Alaska Airlines

Thu, Jun 4 - Tue, Jun 9

6:59 pm - 4:06 pm

STS

HLN

20h 07m

2 stops

5:09 pm - 10:51 pm

HLN

STS

6h 42m

1 stop

$563Alaska Airlines

Mon, Jun 8 - Mon, Jun 15

7:23 pm - 4:32 pm

STS

HLN

20h 09m

1 stop

5:09 pm - 5:16 pm

HLN

STS

25h 07m

2 stops

$565Alaska Airlines

Fri, Jul 10 - Mon, Jul 13

7:00 am - 4:06 pm

STS

HLN

32h 06m

2 stops

4:43 pm - 6:19 pm

HLN

STS

26h 36m

2 stops

$567Alaska Airlines

Fri, May 29 - Mon, Jun 1

7:23 pm - 4:32 pm

STS

HLN

20h 09m

1 stop

5:09 pm - 3:55 pm

HLN

STS

23h 46m

2 stops

$578Alaska Airlines

Mon, Jun 29 - Thu, Jul 9

7:23 pm - 4:32 pm

STS

HLN

20h 09m

1 stop

5:09 pm - 5:16 pm

HLN

STS

25h 07m

2 stops

$580Alaska Airlines

Fri, Jun 19 - Mon, Jun 22

1:06 pm - 4:32 pm

STS

HLN

26h 26m

2 stops

5:09 pm - 5:16 pm

HLN

STS

25h 07m

2 stops

$586Alaska Airlines

Fri, Jul 10 - Mon, Jul 13

Alaska Airlines flights from Santa Rosa to Helena

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

Alaska Airlines

Jun 4

STS1:09 pmSanta Rosa Sonoma County

25h 57m

1 stop

HLN4:06 pmHelena

Jun 9

HLN4:43 pmHelena

20h 15m

1 stop

STS11:58 amSanta Rosa Sonoma County

$456

Alaska Airlines

Jun 4

STS1:09 pmSanta Rosa Sonoma County

25h 57m

1 stop

HLN4:06 pmHelena

Jun 9

HLN4:43 pmHelena

25h 33m

2 stops

STS5:16 pmSanta Rosa Sonoma County

$523

Alaska Airlines

Jun 8

STS6:59 pmSanta Rosa Sonoma County

20h 07m

2 stops

HLN4:06 pmHelena

Jun 15

HLN5:09 pmHelena

25h 07m

2 stops

STS5:16 pmSanta Rosa Sonoma County

$526

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Thu 6/4

1:09 pm-4:06 pm

1 stop25h 57m

Helena

Tue 6/9

4:43 pm-11:58 am

1 stop20h 15m

$456

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Thu 6/4

1:09 pm-4:06 pm

1 stop25h 57m

Helena

Tue 6/9

4:43 pm-5:16 pm

2 stops25h 33m

$523

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Mon 6/8

6:59 pm-4:06 pm

2 stops20h 07m

Helena

Mon 6/15

5:09 pm-5:16 pm

2 stops25h 07m

$526

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Thu 6/4

7:40 pm-4:06 pm

2 stops43h 26m

Helena

Tue 6/9

4:43 pm-10:58 pm

2 stops31h 15m

$544

Quickest round-trip

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Mon 6/8

6:59 pm-4:06 pm

2 stops20h 07m

Helena

Mon 6/15

5:09 pm-10:51 pm

1 stop6h 42m

$563

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Fri 7/10

7:23 pm-4:32 pm

1 stop20h 09m

Helena

Mon 7/13

5:09 pm-5:16 pm

2 stops25h 07m

$565

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Fri 5/29

7:00 am-4:06 pm

2 stops32h 06m

Helena

Mon 6/1

4:43 pm-6:19 pm

2 stops26h 36m

$567

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Mon 6/29

7:23 pm-4:32 pm

1 stop20h 09m

Helena

Thu 7/9

5:09 pm-3:55 pm

2 stops23h 46m

$578

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Fri 6/19

7:23 pm-4:32 pm

1 stop20h 09m

Helena

Mon 6/22

5:09 pm-5:16 pm

2 stops25h 07m

$580

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Fri 7/10

1:06 pm-4:32 pm

2 stops26h 26m

Helena

Mon 7/13

5:09 pm-5:16 pm

2 stops25h 07m

$586

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted 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 is the cheapest airline that flies from Santa Rosa Sonoma County to Helena?

Alaska Airlines is the most popular carrier operating from Santa Rosa Sonoma County to Helena

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 45% 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	20h 07m
Direct flights	None

The fastest flight from Santa Rosa to Helena takes 20h 07m

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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Frequently asked questions about flying from Santa Rosa to Helena

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 20h 07m, 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.