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Cheap flights from San Francisco Bay Area to Helena from $136

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 1/29. 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

Alaska Airlines Logo
8:05 pm - 5:41 pmOAK-HLN
20h 36m1 stop
Alaska Airlines Logo
6:18 pm - 12:03 amHLN-OAK
6h 45m1 stop
$242Alaska Airlines
Find Deal
Tue, Oct 21 - Sat, Oct 25
Delta Logo
5:30 am - 12:20 pmSFO-HLN
5h 50m1 stop
Delta Logo
5:45 am - 9:00 amHLN-SFO
4h 15m1 stop
$273Delta
Find Deal
Sun, Oct 12 - Sun, Oct 19
Delta Logo
4:59 pm - 10:14 pmSFO-HLN
4h 15m1 stop
Delta Logo
1:00 pm - 12:43 pmHLN-SFO
24h 43m2 stops
$303Delta
Find Deal
Sat, Oct 4 - Tue, Oct 7
Alaska Airlines Logo
9:34 am - 5:41 pmSFO-HLN
7h 07m1 stop
Alaska Airlines Logo
6:18 pm - 10:29 pmHLN-SFO
5h 11m1 stop
$307Alaska Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Delta Logo
5:45 am - 12:27 pmSFO-HLN
5h 42m1 stop
Delta Logo
12:50 pm - 6:42 pmHLN-SFO
6h 52m1 stop
$311Delta
Find Deal
Wed, Mar 4 - Fri, Mar 13
Delta Logo
5:45 am - 12:27 pmSJC-HLN
5h 42m1 stop
Delta Logo
5:35 am - 9:12 amHLN-SJC
4h 37m1 stop
$315Delta
Find Deal
Wed, Mar 4 - Fri, Mar 13
Delta Logo
10:31 am - 10:38 pmSFO-HLN
11h 07m2 stops
Delta Logo
12:50 pm - 6:42 pmHLN-SFO
6h 52m1 stop
$321Delta
Find Deal
Wed, Mar 4 - Thu, Mar 12
Hawaiian Airlines Logo
8:00 am - 3:21 pmSFO-HLN
6h 21m1 stop
Hawaiian Airlines Logo
6:18 pm - 10:29 pmHLN-SFO
5h 11m1 stop
$405Hawaiian Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
United Airlines Logo
12:30 pm - 9:00 pmSJC-HLN
7h 30m1 stop
United Airlines Logo
6:30 am - 1:40 pmHLN-SJC
8h 10m1 stop
$573United Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
United Airlines Logo
9:30 pm - 10:14 pmSFO-HLN
23h 44m2 stops
United Airlines Logo
5:18 pm - 10:57 pmHLN-SFO
6h 39m1 stop
$590United Airlines
Find Deal
Fri, Sep 26 - Tue, Sep 30

Delta flights from San Francisco Bay Area to Helena

Our best Delta deals on San Francisco Bay Area to Helena flight tickets
Delta
Oct 12
SFO5:30 amSan Francisco
5h 50m
1 stop
HLN12:20 pmHelena
Oct 19
HLN5:45 amHelena
4h 15m
1 stop
SFO9:00 amSan Francisco
$273
Find similar
Delta
Oct 4
SFO4:59 pmSan Francisco
4h 15m
1 stop
HLN10:14 pmHelena
Oct 7
HLN1:00 pmHelena
24h 43m
2 stops
SFO12:43 pmSan Francisco
$303
Find similar
Delta
Mar 4
SFO5:45 amSan Francisco
5h 42m
1 stop
HLN12:27 pmHelena
Mar 13
HLN12:50 pmHelena
6h 52m
1 stop
SFO6:42 pmSan Francisco
$311
Find similar

United Airlines flights from San Francisco Bay Area to Helena

Our best United Airlines deals on San Francisco Bay Area to Helena flight tickets
United Airlines
Sep 29
SJC12:30 pmSan Jose
7h 30m
1 stop
HLN9:00 pmHelena
Oct 3
HLN6:30 amHelena
8h 10m
1 stop
SJC1:40 pmSan Jose
$573
Find similar
United Airlines
Sep 26
SFO9:30 pmSan Francisco
23h 44m
2 stops
HLN10:14 pmHelena
Sep 30
HLN5:18 pmHelena
6h 39m
1 stop
SFO10:57 pmSan Francisco
$590
Find similar
United Airlines
Sep 23
SFO4:28 pmSan Francisco
22h 36m
1 stop
HLN4:04 pmHelena
Sep 29
HLN5:18 pmHelena
6h 39m
1 stop
SFO10:57 pmSan Francisco
$644
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 September 16, 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

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 10/21

8:05 pm-5:41 pm

1 stop20h 36m

Helena

Sat 10/25

6:18 pm-12:03 am

1 stop6h 45m

$242

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sun 10/12

5:30 am-12:20 pm

1 stop5h 50m

Helena

Sun 10/19

5:45 am-9:00 am

1 stop4h 15m

$273

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sat 10/4

4:59 pm-10:14 pm

1 stop4h 15m

Helena

Tue 10/7

1:00 pm-12:43 pm

2 stops24h 43m

$303

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sat 10/4

9:34 am-5:41 pm

1 stop7h 07m

Helena

Tue 10/7

6:18 pm-10:29 pm

1 stop5h 11m

$307

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 3/4

5:45 am-12:27 pm

1 stop5h 42m

Helena

Fri 3/13

12:50 pm-6:42 pm

1 stop6h 52m

$311

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 3/4

5:45 am-12:27 pm

1 stop5h 42m

Helena

Fri 3/13

5:35 am-9:12 am

1 stop4h 37m

$315

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 3/4

10:31 am-10:38 pm

2 stops11h 07m

Helena

Thu 3/12

12:50 pm-6:42 pm

1 stop6h 52m

$321

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 9/30

8:00 am-3:21 pm

1 stop6h 21m

Helena

Tue 10/7

6:18 pm-10:29 pm

1 stop5h 11m

$405

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Mon 9/29

12:30 pm-9:00 pm

1 stop7h 30m

Helena

Fri 10/3

6:30 am-1:40 pm

1 stop8h 10m

$573

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Fri 9/26

9:30 pm-10:14 pm

2 stops23h 44m

Helena

Tue 9/30

5:18 pm-10:57 pm

1 stop6h 39m

$590

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 13% 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

Direct flights

None
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
7,957 reviews
Search Delta flights
Alaska AirlinesPriceFrom $273Free CancellationRating
8.0
10,000 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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