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Cheap flights from San Francisco Bay Area to Helena from $120

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco Bay Area to Helena departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco Bay Area to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
12:00 pm - 6:11 pm
SFO
-
HLN
5h 11m1 stop
Alaska Airlines Logo
6:48 pm - 11:03 pm
HLN
-
SFO
5h 15m1 stop
$238Alaska Airlines
Wed, Jan 28 - Sat, Jan 31
Alaska Airlines Logo
7:00 am - 6:11 pm
SFO
-
HLN
10h 11m2 stops
Alaska Airlines Logo
6:48 pm - 11:03 pm
HLN
-
SFO
5h 15m1 stop
$276Alaska Airlines
Wed, Jan 28 - Sat, Jan 31
Alaska Airlines Logo
7:57 am - 6:11 pm
SFO
-
HLN
9h 14m2 stops
Alaska Airlines Logo
6:48 pm - 11:03 pm
HLN
-
SFO
5h 15m1 stop
$286Alaska Airlines
Wed, Jan 28 - Sat, Jan 31
Delta Logo
5:45 am - 12:23 pm
SJC
-
HLN
5h 38m1 stop
Delta Logo
12:50 pm - 4:16 pm
HLN
-
SJC
4h 26m1 stop
$289Delta
Tue, Jun 9 - Fri, Jun 19
Alaska Airlines Logo
6:50 am - 6:11 pm
STS
-
HLN
10h 21m2 stops
Alaska Airlines Logo
6:48 pm - 11:59 pm
HLN
-
STS
6h 11m1 stop
$301Alaska Airlines
Sat, Feb 7 - Mon, Feb 9
Alaska Airlines Logo
6:50 am - 6:11 pm
STS
-
HLN
10h 21m2 stops
Alaska Airlines Logo
6:48 pm - 11:59 pm
HLN
-
STS
6h 11m1 stop
$304Alaska Airlines
Sat, Feb 7 - Mon, Feb 9
Alaska Airlines Logo
11:43 am - 6:11 pm
OAK
-
HLN
5h 28m1 stop
Alaska Airlines Logo
6:48 pm - 8:40 pm
HLN
-
OAK
26h 52m1 stop
$310Alaska Airlines
Tue, Feb 3 - Wed, Feb 4
Alaska Airlines Logo
11:15 am - 6:11 pm
STS
-
HLN
5h 56m1 stop
Alaska Airlines Logo
6:48 pm - 10:35 am
HLN
-
STS
16h 47m1 stop
$312Alaska Airlines
Sat, Feb 7 - Mon, Feb 9
Alaska Airlines Logo
11:43 am - 6:11 pm
OAK
-
HLN
5h 28m1 stop
Alaska Airlines Logo
6:48 pm - 9:46 am
HLN
-
OAK
15h 58m2 stops
$321Alaska Airlines
Tue, Feb 3 - Wed, Feb 4
Delta Logo
5:00 pm - 10:34 pm
SJC
-
HLN
4h 34m1 stop
Delta Logo
12:50 pm - 4:16 pm
HLN
-
SJC
4h 26m1 stop
$344Delta
Wed, Jun 10 - Fri, Jun 19

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
Jan 28
SFO12:00 pmSan Francisco
5h 11m
1 stop
HLN6:11 pmHelena
Jan 31
HLN6:48 pmHelena
5h 15m
1 stop
SFO11:03 pmSan Francisco
$238
Find similar
Alaska Airlines
Jan 28
SFO7:00 amSan Francisco
10h 11m
2 stops
HLN6:11 pmHelena
Jan 31
HLN6:48 pmHelena
5h 15m
1 stop
SFO11:03 pmSan Francisco
$276
Find similar
Alaska Airlines
Feb 10
SFO12:00 pmSan Francisco
5h 11m
1 stop
HLN6:11 pmHelena
Feb 14
HLN4:36 pmHelena
7h 20m
1 stop
SFO10:56 pmSan Francisco
$283
Find similar

Delta flights from San Francisco Bay Area to Helena

Our best Delta deals on San Francisco Bay Area to Helena flight tickets
Delta
Jun 9
SJC5:45 amSan Jose
5h 38m
1 stop
HLN12:23 pmHelena
Jun 19
HLN12:50 pmHelena
4h 26m
1 stop
SJC4:16 pmSan Jose
$289
Find similar
Delta
Jun 10
SJC5:00 pmSan Jose
4h 34m
1 stop
HLN10:34 pmHelena
Jun 19
HLN12:50 pmHelena
4h 26m
1 stop
SJC4:16 pmSan Jose
$344
Find similar
Delta
Jun 9
SFO6:00 amSan Francisco
5h 23m
1 stop
HLN12:23 pmHelena
Jun 19
HLN12:50 pmHelena
6h 45m
1 stop
SFO6:35 pmSan Francisco
$369
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco Bay Area to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
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 FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 1/28

12:00 pm-6:11 pm

1 stop5h 11m

Helena

Sat 1/31

6:48 pm-11:03 pm

1 stop5h 15m

$238

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 1/28

7:00 am-6:11 pm

2 stops10h 11m

Helena

Sat 1/31

6:48 pm-11:03 pm

1 stop5h 15m

$276

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 1/28

7:57 am-6:11 pm

2 stops9h 14m

Helena

Sat 1/31

6:48 pm-11:03 pm

1 stop5h 15m

$286

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 6/9

5:45 am-12:23 pm

1 stop5h 38m

Helena

Fri 6/19

12:50 pm-4:16 pm

1 stop4h 26m

$289

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/7

6:50 am-6:11 pm

2 stops10h 21m

Helena

Mon 2/9

6:48 pm-11:59 pm

1 stop6h 11m

$301

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/7

6:50 am-6:11 pm

2 stops10h 21m

Helena

Mon 2/9

6:48 pm-11:59 pm

1 stop6h 11m

$304

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 2/3

11:43 am-6:11 pm

1 stop5h 28m

Helena

Wed 2/4

6:48 pm-8:40 pm

1 stop26h 52m

$310

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Sat 2/7

11:15 am-6:11 pm

1 stop5h 56m

Helena

Mon 2/9

6:48 pm-10:35 am

1 stop16h 47m

$312

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 2/3

11:43 am-6:11 pm

1 stop5h 28m

Helena

Wed 2/4

6:48 pm-9:46 am

2 stops15h 58m

$321

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 6/10

5:00 pm-10:34 pm

1 stop4h 34m

Helena

Fri 6/19

12:50 pm-4:16 pm

1 stop4h 26m

$344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helena from

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

What is the cheapest day to depart on your flight to Helena?

The cheapest day to depart from San Francisco Bay Area to Helena is on a Monday. Travelers who choose to depart for Helena on a Monday will often find tickets for as low as $350. The most expensive day to fly to Helena is Sunday, with ticket prices averaging around $706.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the afternoon. momondo users have found flights departing from San Francisco Bay Area to Helena in the afternoon for as low as $386. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is at noon when prices are around $950.

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

You could potentially save up to 46% 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?

  • 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?

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
DeltaPriceFrom $215Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Alaska AirlinesPriceFrom $317Free CancellationRating
8.0
11,478 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.

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