HLN

$246 Find Cheap Flights from San Francisco Bay Area to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Helena departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$246
Alaska Airlines
Wed 3/4Mon 3/9
SFO - HLN • 1 stop
Cheapest one-way
$131
Alaska Airlines
Sat 2/28
SFO - HLN • 1 stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from San Francisco Bay Area to Helena

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco Bay Area to Helena that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco Bay Area to Helena

Wed, Mar 4 - Mon, Mar 9
Alaska Airlines Logo
8:42 am - 3:59 pm
SFO
-
HLN
6h 17m
1 stop
Alaska Airlines Logo
4:36 pm - 10:56 pm
HLN
-
SFO
7h 20m
1 stop
$246Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
7:28 pm - 3:59 pm
SFO
-
HLN
19h 31m
1 stop
Alaska Airlines Logo
4:36 pm - 9:55 pm
HLN
-
SFO
6h 19m
1 stop
$260Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
6:30 am - 3:59 pm
SFO
-
HLN
8h 29m
1 stop
Alaska Airlines Logo
4:36 pm - 10:56 pm
HLN
-
SFO
7h 20m
1 stop
$270Alaska Airlines
Wed, Mar 4 - Mon, Mar 9
Alaska Airlines Logo
8:42 am - 3:59 pm
SFO
-
HLN
6h 17m
1 stop
Alaska Airlines Logo
4:36 pm - 5:34 pm
HLN
-
SFO
25h 58m
2 stops
$274Alaska Airlines
Wed, Mar 4 - Mon, Mar 9
Alaska Airlines Logo
10:16 am - 3:59 pm
SJC
-
HLN
4h 43m
1 stop
Alaska Airlines Logo
4:36 pm - 10:59 pm
HLN
-
SJC
7h 23m
1 stop
$278Alaska Airlines
Wed, Mar 4 - Sun, Mar 8
Alaska Airlines Logo
8:42 am - 3:59 pm
SFO
-
HLN
6h 17m
1 stop
Alaska Airlines Logo
4:36 pm - 9:55 pm
HLN
-
SFO
6h 19m
1 stop
$278Alaska Airlines
Tue, Mar 10 - Wed, Mar 11
Alaska Airlines Logo
6:15 am - 3:59 pm
OAK
-
HLN
8h 44m
1 stop
Alaska Airlines Logo
4:36 pm - 11:58 pm
HLN
-
OAK
8h 22m
1 stop
$283Alaska Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
2:33 pm - 9:46 pm
SJC
-
HLN
6h 13m
1 stop
United Airlines Logo
2:30 pm - 9:32 pm
HLN
-
SJC
8h 02m
1 stop
$287United Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
7:57 pm - 3:59 pm
STS
-
HLN
19h 02m
1 stop
Alaska Airlines Logo
4:36 pm - 9:52 pm
HLN
-
STS
6h 16m
1 stop
$293Alaska Airlines
Thu, Mar 5 - Sun, Mar 8
Delta Logo
5:45 am - 12:25 pm
SJC
-
HLN
5h 40m
1 stop
Delta Logo
5:30 am - 8:52 am
HLN
-
SJC
4h 22m
1 stop
$307Delta
Useful Info

Good to know

Low seasonApril
Cheapest flight$131
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from San Francisco to Helena

FAQs for booking flights from San Francisco Bay Area to Helena

  • How does KAYAK find such low prices on flights from San Francisco Bay Area to Helena?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco Bay Area to Helena.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco Bay Area to Helena?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from San Francisco Bay Area is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco Bay Area to Helena?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helena with an airline and back to San Francisco Bay Area with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco Bay Area to Helena?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helena from San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Francisco Bay Area to Helena

 
Need help choosing which airline to fly with from San Francisco Bay Area to Helena? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11819 reviews
7.1Food
7.0Entertainment
8.5Crew
7.8Comfort
8.1Boarding
Airline reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

2.0 MediocreAnonymous, Jan 2026
STS - SAN
Read more Alaska Airlines reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

Worst first/business class I have ever flown after 75 years on planes. Barely acceptable seats, terrible food, uninterested attendants, unavailable WiFi. I’ll never fly this airline again.

The bathroom trash container under the sink fell out and was like that long before my flight. The plane smelled of canned fish and floor was Deteriorating

My TSA pre check was left Off my boarding pass which was a large inconvenience.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

It wasn’t great. Your app is not user friendly unless you sign up for those points. It tries to force you and won’t show you flight/trip info until you sign up. You have to somehow get into get your boarding pass because your kiosks don’t offer boarding pass information only bag check. It was not helpful or user friendly. The app is useless unless you sign up for your rewards program. My daughters info was missing even though I checked us in we had to get out of security and go back to a ticket window the woman told us that it sometimes populates incorrectly so it didn’t have her information. It populated incorrect birth date. She said this is common. Luckily we were at Palm Springs and not JFK where leaving the giant security line would have been a much bigger problem. I will avoid your airline in the future if it’s possible. Also no food availability except dry snack boxes.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Everything you need to know for your flight to Helena

Information on the airport you'll fly into in Helena