What is the cheapest airline that flies from California to Helena?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from California to Helena

How long does it take to fly to Helena?

On average, it takes 2h 15m to fly from California to Helena if you fly out of San Francisco (the most popular airport in California) and into Bozeman (the most popular airport in Helena). If you’re flying out of Los Angeles and into Bozeman, then the flight time is around 2h 32m.

What airlines fly to Helena?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Helena from California according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 8 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from California to Helena Airport?

Prices for flights from California to Helena Airport refresh daily.

How many operators does momondo search for flights from California to Helena Airport?

As of May 2026, there are 3 operators available to choose from for flights from California to Helena Airport.

How old do you have to be to fly from California to Helena Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$160 Cheap Flights from California to Helena in 2026

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Find the cheapest flights from California to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:15 pm

SJC

HLN

5h 15m

1 stop

12:50 pm - 6:17 pm

HLN

SJC

6h 27m

1 stop

$309Delta

Tue, Aug 25 - Thu, Sep 3

10:00 am - 4:34 pm

SJC

HLN

5h 34m

1 stop

5:11 pm - 10:57 pm

HLN

SJC

6h 46m

1 stop

$316Alaska Airlines

Wed, Aug 26 - Tue, Sep 1

7:08 am - 4:11 pm

FAT

HLN

8h 03m

1 stop

4:48 pm - 10:11 pm

HLN

FAT

6h 23m

1 stop

$319Alaska Airlines

Fri, Oct 23 - Sat, Oct 24

5:01 pm - 10:39 pm

SJC

HLN

4h 38m

1 stop

12:55 pm - 6:26 pm

HLN

SJC

6h 31m

1 stop

$319Delta

Thu, Jul 9 - Mon, Jul 13

6:10 am - 12:23 pm

LAS

HLN

5h 13m

1 stop

1:03 pm - 6:07 pm

HLN

LAS

6h 04m

1 stop

$319Delta

Thu, May 28 - Wed, Jun 3

8:00 am - 4:34 pm

SJC

HLN

7h 34m

1 stop

5:11 pm - 10:57 pm

HLN

SJC

6h 46m

1 stop

$323Alaska Airlines

Thu, Aug 27 - Wed, Sep 2

7:00 am - 4:06 pm

LAS

HLN

8h 06m

1 stop

5:09 pm - 10:50 pm

HLN

LAS

6h 41m

1 stop

$324Alaska Airlines

Sat, Jun 6 - Sat, Jun 13

1:00 pm - 8:59 pm

ONT

HLN

6h 59m

1 stop

2:30 pm - 8:20 pm

HLN

ONT

6h 50m

1 stop

$411United Airlines

Sat, Oct 31 - Tue, Nov 3

12:48 pm - 9:16 pm

BUR

HLN

7h 28m

1 stop

2:29 pm - 8:37 pm

HLN

BUR

7h 08m

1 stop

$481United Airlines

Tue, Aug 25 - Sat, Aug 29

12:48 pm - 9:16 pm

BUR

HLN

7h 28m

1 stop

2:29 pm - 8:37 pm

HLN

BUR

7h 08m

1 stop

$504United Airlines

Tue, Aug 25 - Sat, Aug 29

Delta flights from California to Helena

Our best Delta deals on California to Helena flight tickets

Delta

Aug 25

SJC6:00 amSan Jose

5h 15m

1 stop

HLN12:15 pmHelena

Sep 3

HLN12:50 pmHelena

6h 27m

1 stop

SJC6:17 pmSan Jose

$309

Delta

May 28

LAS6:10 amLas Vegas Harry Reid Intl

5h 13m

1 stop

HLN12:23 pmHelena

Jun 3

HLN1:03 pmHelena

6h 04m

1 stop

LAS6:07 pmLas Vegas Harry Reid Intl

$319

Delta

Jun 6

LAS5:00 pmLas Vegas Harry Reid Intl

4h 33m

1 stop

HLN10:33 pmHelena

Jun 13

HLN1:00 pmHelena

6h 06m

1 stop

LAS6:06 pmLas Vegas Harry Reid Intl

$329

Alaska Airlines flights from California to Helena

Our best Alaska Airlines deals on California to Helena flight tickets

Alaska Airlines

Aug 26

SJC10:00 amSan Jose

5h 34m

1 stop

HLN4:34 pmHelena

Sep 1

HLN5:11 pmHelena

6h 46m

1 stop

SJC10:57 pmSan Jose

$316

Alaska Airlines

Oct 23

FAT7:08 amFresno Airterminal

8h 03m

1 stop

HLN4:11 pmHelena

Oct 24

HLN4:48 pmHelena

6h 23m

1 stop

FAT10:11 pmFresno Airterminal

$319

Alaska Airlines

Aug 27

SJC8:00 amSan Jose

7h 34m

1 stop

HLN4:34 pmHelena

Sep 2

HLN5:11 pmHelena

6h 46m

1 stop

SJC10:57 pmSan Jose

$323

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 8/25

6:00 am-12:15 pm

1 stop5h 15m

Helena

Thu 9/3

12:50 pm-6:17 pm

1 stop6h 27m

$309

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 8/26

10:00 am-4:34 pm

1 stop5h 34m

Helena

Tue 9/1

5:11 pm-10:57 pm

1 stop6h 46m

$316

FresnoHelena

FAT - HLN

FATHLN

Fresno Airterminal

Fri 10/23

7:08 am-4:11 pm

1 stop8h 03m

Helena

Sat 10/24

4:48 pm-10:11 pm

1 stop6h 23m

$319

Quickest round-trip

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 7/9

5:01 pm-10:39 pm

1 stop4h 38m

Helena

Mon 7/13

12:55 pm-6:26 pm

1 stop6h 31m

$319

Las VegasHelena

LAS - HLN

LASHLN

Las Vegas Harry Reid Intl

Thu 5/28

6:10 am-12:23 pm

1 stop5h 13m

Helena

Wed 6/3

1:03 pm-6:07 pm

1 stop6h 04m

$319

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 8/27

8:00 am-4:34 pm

1 stop7h 34m

Helena

Wed 9/2

5:11 pm-10:57 pm

1 stop6h 46m

$323

Las VegasHelena

LAS - HLN

LASHLN

Las Vegas Harry Reid Intl

Sat 6/6

7:00 am-4:06 pm

1 stop8h 06m

Helena

Sat 6/13

5:09 pm-10:50 pm

1 stop6h 41m

$324

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Sat 10/31

1:00 pm-8:59 pm

1 stop6h 59m

Helena

Tue 11/3

2:30 pm-8:20 pm

1 stop6h 50m

$411

BurbankHelena

BUR - HLN

BURHLN

Burbank Bob Hope

Tue 8/25

12:48 pm-9:16 pm

1 stop7h 28m

Helena

Sat 8/29

2:29 pm-8:37 pm

1 stop7h 08m

$481

BurbankHelena

BUR - HLN

BURHLN

Burbank Bob Hope

Tue 8/25

12:48 pm-9:16 pm

1 stop7h 28m

Helena

Sat 8/29

2:29 pm-8:37 pm

1 stop7h 08m

$504

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California 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

Prices

Airlines

Other information

What is the cheapest month to fly to Helena?

If you aren’t able to travel to Helena during the month of May, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $159.

Can stopping save me money on California to Helena flights?

You could potentially save up to 52% on your flight if you consider stops on a California to Helena flight.

Cheap California to Helena flight deals and tips

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

Fastest flight time	4h 00m
Direct flights	None

The fastest flight from California to Helena takes 4h 00m

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

Search flight deals

Frequently asked questions about flying from California to Helena

When did momondo last update prices for flights from California to Helena Airport?
Prices for flights from California to Helena Airport refresh daily.
How many operators does momondo search for flights from California to Helena Airport?
As of May 2026, there are 3 operators available to choose from for flights from California to Helena Airport.
How old do you have to be to fly from California to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from California to Helena

Compare and see reviews for airlines that fly from California to Helena with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $159	Free Cancellation	Rating 7.9 8,457 reviews	Search Delta flights
United Airlines	PriceFrom $242	Free Cancellation	Rating 7.4 9,695 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $291	Free Cancellation	Rating 7.9 12,349 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from California to Helena?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from California to Helena for you.

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

Yes. All flights to Helena from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from California to Helena?

Once all potential California to Helena flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Helena, momondo offers a useful price alert feature which will track prices for flights to Helena from California and alert you when they change.