HLN

$142 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 10/15. 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

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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

Tue, Oct 21 - Sat, Oct 25
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
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Wed, Oct 22 - Fri, Oct 24
Alaska Airlines Logo
10:29 am - 5:41 pmSJC-HLN
6h 12m1 stop
Alaska Airlines Logo
6:18 pm - 9:18 amHLN-SJC
16h 00m1 stop
$273Alaska Airlines
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Fri, Oct 10 - Tue, Oct 14
Alaska Airlines Logo
6:40 am - 5:41 pmOAK-HLN
10h 01m1 stop
Alaska Airlines Logo
6:18 pm - 12:03 amHLN-OAK
6h 45m1 stop
$297Alaska Airlines
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Sat, Oct 18 - Tue, Oct 21
Delta Logo
5:55 am - 12:20 pmSJC-HLN
5h 25m1 stop
Delta Logo
5:45 am - 9:04 amHLN-SJC
4h 19m1 stop
$306Delta
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Wed, Oct 22 - Fri, Oct 24
Alaska Airlines Logo
6:25 am - 5:41 pmSJC-HLN
10h 16m2 stops
Alaska Airlines Logo
6:18 pm - 9:18 amHLN-SJC
16h 00m1 stop
$323Alaska Airlines
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Tue, Oct 21 - Sat, Oct 25
Alaska Airlines Logo
9:25 am - 5:41 pmOAK-HLN
31h 16m2 stops
Alaska Airlines Logo
6:18 pm - 12:03 amHLN-OAK
6h 45m1 stop
$331Alaska Airlines
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Fri, Nov 7 - Sun, Nov 9
Delta Logo
6:00 am - 12:20 pmSFO-HLN
5h 20m1 stop
Delta Logo
5:33 am - 8:56 amHLN-SFO
4h 23m1 stop
$356Delta
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Tue, Sep 30 - Tue, Oct 7
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
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Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
10:44 pm - 1:27 pmSFO-HLN
13h 43m2 stops
United Airlines Logo
2:22 pm - 7:24 amHLN-SFO
18h 02m2 stops
$552United Airlines
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Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
11:03 am - 2:09 pmSFO-HLN
26h 06m2 stops
United Airlines Logo
5:18 pm - 9:42 amHLN-SFO
17h 24m1 stop
$616United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$242
Alaska Airlines
Tue 10/21Sat 10/25
OAK - HLN • 1 stop
Cheapest one-way
$142
Alaska Airlines
Wed 10/15
SJC - HLN • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helena!
Useful Info

Good to know

Low seasonApril
Cheapest flight$142
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from San Jose 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 10000 reviews
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
7.1Entertainment
Airline reviews

The first leg of the trip was excellent. Lovely flight attendants and comfortable plane. The second leg left a lot to be desired. The flight attendant was rude when I asked for a Diet Coke, the boarding required quite a long walk and the plane was crammed and uncomfortable.

10.0 ExcellentAnonymous, Sep 2025ONT - PDX
Read more Alaska Airlines reviews

The first leg of the trip was excellent. Lovely flight attendants and comfortable plane. The second leg left a lot to be desired. The flight attendant was rude when I asked for a Diet Coke, the boarding required quite a long walk and the plane was crammed and uncomfortable.

Flight was delayed as it always is with Alaska airlines. Particularly to smaller airports. No AC on the plane so it was miserably hot.

Flight attendant was awful, I felt second hand embarrassment with every one of her interactions with people onboard. She was so incredibly rude every chance she got

Great flight - efficient and cheerful team on board, at SFO gate. Also, PAE (Paine Field, Everett, WA) is a great little airport to fly out or in to!

My flight wait is 3 hours delayed due to Unknown reason. We waited a very long time in the tarmac. Our flight 24 was scheduled @ 7, therefore we left my house at 330 to park our car. We were at the gate @ 530, then we were told at 6a that it will be late , we boarded at 930 but did not take off until 1015. Therefore my arranged pick up in JFK was cancelled because of no show. Before all these I got an email offers of changing my flight to a different date which I took a day earlier. I will never again take Alaska Airlines, very Inefficient and Disappointing.

Such great crew, from checkin to the plane. So friendly and helpful, I was genuinely impressed.

I was sitting towards back of plane and the flight attendants I thought spoke unusually loud for an evening flight. They chatted and chatted all night long and it seemed odd to me that they didn’t try to lower their voices. It is annoying as a passenger to hear all their conversations.

Staff at Gate desk were helpful. My connecting flight from the first part of my trip Kona to Seattle was late. I had to run through SeaTac Seattle to catch my flight to San Jose. They made an exception to let me board. On my return trip San Jose to San Diego and San Diego to Honolulu the same thing happened. One flight arrived late and I had to run through the terminal to catch my connection. There are no Gluten-free & Vegan options meals and snacks to purchase.

Had to pay $8 for internet wasnt cool, no tv’s, had to use phone to watch movies, no food choices seemed available unless u ordered in advance maybe I'm wrong about that but seemed that way, no snacks were served. Seemed a very bare bones flight. But it was on time and safe so that was good

I liked that it didn't take 10 hours to drive here. Super short trip!

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

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Everything you need to know for your flight to Helena

Information on the airport you'll fly into in Helena

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