What is the cheapest airline that flies from San Francisco Bay Area to Helena?

Alaska Airlines and Delta are the most popular carriers operating from San Francisco Bay Area 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 San Francisco Bay Area 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 7 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 San Francisco Bay Area to Helena Airport?

Prices for flights from San Francisco Bay Area to Helena Airport are refreshed on a daily basis.

How many operators does momondo search for flights from San Francisco Bay Area to Helena Airport?

There are 2 operators available for flights from San Francisco Bay Area to Helena Airport as of February 2026.

How old do you have to be to fly from San Francisco Bay Area to Helena Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Bay Area 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.

$126 Cheap Flights from San Francisco Bay Area to Helena in 2026

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Find the cheapest flights from San Francisco Bay Area to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:21 pm

SJC

HLN

5h 21m

1 stop

1:04 pm - 10:55 am

HLN

SJC

22h 51m

2 stops

$232Delta

Tue, Mar 31 - Tue, Apr 14

5:40 am - 12:21 pm

SFO

HLN

5h 41m

1 stop

1:04 pm - 11:37 pm

HLN

SFO

11h 33m

2 stops

$237Delta

Tue, Mar 31 - Tue, Apr 14

6:15 am - 5:45 pm

SJC

HLN

10h 30m

1 stop

6:22 pm - 9:28 am

HLN

SJC

16h 06m

1 stop

$243Alaska Airlines

Wed, Apr 1 - Wed, Apr 15

6:00 am - 12:21 pm

SJC

HLN

5h 21m

1 stop

5:40 am - 8:47 am

HLN

SJC

4h 07m

1 stop

$251Delta

Tue, Mar 31 - Wed, Apr 15

9:59 am - 5:45 pm

SFO

HLN

6h 46m

1 stop

6:22 pm - 10:27 pm

HLN

SFO

5h 05m

1 stop

$252Alaska Airlines

Wed, Apr 1 - Wed, Apr 15

5:40 am - 12:21 pm

SFO

HLN

5h 41m

1 stop

1:04 pm - 11:37 pm

HLN

SFO

11h 33m

2 stops

$257Delta

Tue, Mar 31 - Wed, Apr 15

6:00 am - 12:21 pm

SJC

HLN

5h 21m

1 stop

1:04 pm - 10:55 am

HLN

SJC

22h 51m

2 stops

$257Delta

Tue, Mar 31 - Mon, Apr 13

5:55 am - 12:21 pm

OAK

HLN

5h 26m

1 stop

1:04 pm - 4:24 pm

HLN

OAK

4h 20m

1 stop

$261Delta

Wed, Apr 1 - Tue, Apr 14

9:59 am - 5:45 pm

SFO

HLN

6h 46m

1 stop

6:22 pm - 10:27 pm

HLN

SFO

5h 05m

1 stop

$261Alaska Airlines

Tue, Mar 31 - Tue, Apr 14

9:59 am - 5:45 pm

SFO

HLN

6h 46m

1 stop

6:22 pm - 11:59 pm

HLN

SFO

6h 37m

1 stop

$262Alaska Airlines

Wed, Apr 1 - Mon, Apr 13

Alaska Airlines flights from San Francisco Bay Area to Helena

Our best Alaska Airlines deals on San Francisco Bay Area to Helena flight tickets

Alaska Airlines

Apr 1

SJC6:15 amSan Jose

10h 30m

1 stop

HLN5:45 pmHelena

Apr 15

HLN6:22 pmHelena

16h 06m

1 stop

SJC9:28 amSan Jose

$243

Alaska Airlines

Apr 1

SFO9:59 amSan Francisco

6h 46m

1 stop

HLN5:45 pmHelena

Apr 15

HLN6:22 pmHelena

5h 05m

1 stop

SFO10:27 pmSan Francisco

$252

Alaska Airlines

Mar 31

SFO9:59 amSan Francisco

6h 46m

1 stop

HLN5:45 pmHelena

Apr 14

HLN6:22 pmHelena

5h 05m

1 stop

SFO10:27 pmSan Francisco

$261

Delta flights from San Francisco Bay Area to Helena

Our best Delta deals on San Francisco Bay Area to Helena flight tickets

Delta

Mar 31

SJC6:00 amSan Jose

5h 21m

1 stop

HLN12:21 pmHelena

Apr 14

HLN1:04 pmHelena

22h 51m

2 stops

SJC10:55 amSan Jose

$232

Delta

Mar 31

SFO5:40 amSan Francisco

5h 41m

1 stop

HLN12:21 pmHelena

Apr 14

HLN1:04 pmHelena

11h 33m

2 stops

SFO11:37 pmSan Francisco

$237

Delta

Mar 31

SJC6:00 amSan Jose

5h 21m

1 stop

HLN12:21 pmHelena

Apr 15

HLN5:40 amHelena

4h 07m

1 stop

SJC8:47 amSan Jose

$251

momondo Fare Finder

Use the filters below to find and compare flights from San Francisco Bay Area to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 3/31

6:00 am-12:21 pm

1 stop5h 21m

Helena

Tue 4/14

1:04 pm-10:55 am

2 stops22h 51m

$232

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 3/31

5:40 am-12:21 pm

1 stop5h 41m

Helena

Tue 4/14

1:04 pm-11:37 pm

2 stops11h 33m

$237

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 4/1

6:15 am-5:45 pm

1 stop10h 30m

Helena

Wed 4/15

6:22 pm-9:28 am

1 stop16h 06m

$243

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 3/31

6:00 am-12:21 pm

1 stop5h 21m

Helena

Wed 4/15

5:40 am-8:47 am

1 stop4h 07m

$251

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 4/1

9:59 am-5:45 pm

1 stop6h 46m

Helena

Wed 4/15

6:22 pm-10:27 pm

1 stop5h 05m

$252

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 3/31

5:40 am-12:21 pm

1 stop5h 41m

Helena

Wed 4/15

1:04 pm-11:37 pm

2 stops11h 33m

$257

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 3/31

6:00 am-12:21 pm

1 stop5h 21m

Helena

Mon 4/13

1:04 pm-10:55 am

2 stops22h 51m

$257

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Wed 4/1

5:55 am-12:21 pm

1 stop5h 26m

Helena

Tue 4/14

1:04 pm-4:24 pm

1 stop4h 20m

$261

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 3/31

9:59 am-5:45 pm

1 stop6h 46m

Helena

Tue 4/14

6:22 pm-10:27 pm

1 stop5h 05m

$261

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 4/1

9:59 am-5:45 pm

1 stop6h 46m

Helena

Mon 4/13

6:22 pm-11:59 pm

1 stop6h 37m

$262

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 San Francisco Bay Area 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

Can stopping save me money on San Francisco Bay Area to Helena flights?

You could potentially save up to 29% on your flight if you consider stops on a San Francisco Bay Area to Helena flight.

Cheap San Francisco Bay Area to Helena flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco Bay Area to Helena

Fastest flight time	4h 34m
Direct flights	None

The fastest flight from San Francisco Bay Area to Helena takes 4h 34m

There are no direct flights from San Francisco Bay Area to Helena. There are no popular flight routes from San Francisco Bay Area to Helena.

Search flight deals

When did momondo last update prices for flights from San Francisco Bay Area to Helena Airport?
Prices for flights from San Francisco Bay Area to Helena Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Bay Area to Helena Airport?
There are 2 operators available for flights from San Francisco Bay Area to Helena Airport as of February 2026.
How old do you have to be to fly from San Francisco Bay Area to Helena Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Bay Area 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.
What is the most popular plane model from San Francisco Bay Area to Helena?
momondo data reveals that the most frequently booked plane model on the route from San Francisco Bay Area to Helena is Embraer 175 (Enhanced Winglets), representing 39.71% of all bookings. The subsequent popular models are Embraer 175 at 22.06%, Boeing 737 MAX 8 at 4.41%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 4.41%.

Best airlines flying from San Francisco Bay Area to Helena

Compare and see reviews for airlines that fly from San Francisco Bay Area to Helena with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $215	Free Cancellation	Rating 7.9 8,245 reviews		Search Delta flights
Alaska Airlines	PriceFrom $317	Free Cancellation	Rating 8.0 11,966 reviews		Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco Bay Area to Helena?

It is quick and easy to find San Francisco Bay Area 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 San Francisco Bay Area to Helena with flexible booking policies on momondo?

All flight searches from San Francisco Bay Area to Helena on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Francisco Bay Area to Helena?

Once all potential San Francisco Bay Area 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 San Francisco Bay Area to Helena right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco Bay Area to Helena flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.