HLN

$120 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 1/21. 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
$238
Typical prices: $552-$816
Alaska Airlines
Wed 1/28Sat 1/31
SFO - HLN • 1 stop
Cheapest one-way
$120
Delta
Wed 1/21
OAK - 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, Jan 28 - Sat, Jan 31
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
Tue, Feb 10 - Sat, Feb 14
Alaska Airlines Logo
12:00 pm - 6:11 pm
SFO
-
HLN
5h 11m1 stop
Alaska Airlines Logo
4:36 pm - 10:56 pm
HLN
-
SFO
7h 20m1 stop
$283Alaska 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
Tue, Jun 9 - Fri, Jun 19
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
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
$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
Tue, Feb 3 - Wed, Feb 4
Alaska Airlines Logo
11:43 am - 6:11 pm
OAK
-
HLN
5h 28m1 stop
Alaska Airlines Logo
6:48 pm - 4:23 pm
HLN
-
OAK
22h 35m1 stop
$310Alaska Airlines
Sat, Feb 7 - Mon, Feb 9
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
Wed, Jun 10 - Fri, Jun 19
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
Useful Info

Good to know

Low seasonApril
Cheapest flight$120
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Oakland 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 11478 reviews
7.8Comfort
8.5Crew
8.1Boarding
7.1Food
7.0Entertainment
Airline reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

8.0 ExcellentEvie, Dec 2025
SAN - HNL
Read more Alaska Airlines reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

The flight attendants were excellent and I was in the back of the plane. Much much better than recent JetBlue experiences on that route and better than Delta on that route.

I’m not sure there is anything that can be improved, even the cost was fantastic.

Poor. They should have given me a row with more room and instead they put me in a middle seat with two strangers next to me

They were so kind to us! The entire staff were so good to us when we had our service dog join our trip and we couldn't be more grateful!

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

Larger seats and more room would elevate the experience. Otherwise, it was good!

Flight crew and flight were good. But it departed two hours late.

They changed our flight from a one stop 3 hour layover to a non-stop. Saved us hours and got us there sooner.

The ground crew did not supply drink or snacks during the layover in SFO. So there weren't many options. Otherwise, it was all great.

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.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Everything you need to know for your flight to Helena

Information on the airport you'll fly into in Helena