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$255 Find Cheap Flights from San Francisco Bay Area to Helena

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Helena departing on 9/1. 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

Mon, Sep 1 - Tue, Sep 9
Delta Logo
5:35 am - 12:20 pmSFO-HLN
5h 45m1 stop
Delta Logo
5:50 am - 12:11 pmHLN-SFO
7h 21m1 stop
$255Delta
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Mon, Sep 1 - Tue, Sep 9
Delta Logo
5:55 am - 12:20 pmSJC-HLN
5h 25m1 stop
Delta Logo
5:50 am - 8:59 amHLN-SJC
4h 09m1 stop
$265Delta
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Sat, Sep 6 - Fri, Sep 12
Delta Logo
5:55 am - 12:20 pmSJC-HLN
5h 25m1 stop
Delta Logo
1:00 pm - 6:29 pmHLN-SJC
6h 29m1 stop
$297Delta
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Sat, Aug 23 - Sat, Aug 30
Alaska Airlines Logo
7:00 am - 3:21 pmSTS-HLN
7h 21m1 stop
Alaska Airlines Logo
4:02 pm - 8:08 pmHLN-STS
5h 06m1 stop
$304Alaska Airlines
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Thu, Aug 21 - Sat, Aug 23
Delta Logo
5:35 am - 12:20 pmSFO-HLN
5h 45m1 stop
Delta Logo
5:50 am - 12:11 pmHLN-SFO
7h 21m1 stop
$317Delta
Find Deal
Sat, Sep 6 - Fri, Sep 12
Delta Logo
5:55 am - 12:20 pmSJC-HLN
5h 25m1 stop
Delta Logo
1:00 pm - 6:29 pmHLN-SJC
6h 29m1 stop
$317Delta
Find Deal
Wed, Oct 8 - Sun, Oct 12
Alaska Airlines Logo
11:22 am - 5:41 pmSFO-HLN
5h 19m1 stop
Alaska Airlines Logo
6:18 pm - 9:16 amHLN-SFO
15h 58m1 stop
$328Alaska Airlines
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Thu, Aug 21 - Sat, Aug 23
Hawaiian Airlines Logo
9:00 am - 3:21 pmSJC-HLN
5h 21m1 stop
Hawaiian Airlines Logo
4:02 pm - 8:59 pmHLN-SJC
5h 57m1 stop
$429Hawaiian Airlines
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Wed, Dec 24 - Mon, Dec 29
United Airlines Logo
2:29 pm - 8:59 pmSJC-HLN
5h 30m1 stop
United Airlines Logo
2:30 pm - 9:07 pmHLN-SJC
7h 37m1 stop
$457United Airlines
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Wed, Dec 24 - Mon, Dec 29
United Airlines Logo
7:05 am - 8:59 pmSFO-HLN
12h 54m2 stops
United Airlines Logo
6:10 am - 11:47 amHLN-SFO
6h 37m1 stop
$532United Airlines
Find Deal
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Good to know

Low seasonApril
Cheapest flight$255
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 14% 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 10000 reviews
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

Departing flight to San Diego was delayed. Return flight from SD to SBP was delayed. Not terrible but not ideal

4.0 OkaySean, Jul 2025SBP - SAN
Read more Alaska Airlines reviews

Departing flight to San Diego was delayed. Return flight from SD to SBP was delayed. Not terrible but not ideal

I always heard this was a terrible airline but I was happy to experience otherwise. The seats were more comfortable than delta. They did board late and gate was a little chaotic, which is to be expected for a budget airline. I would definitely do it again for that price.

My email notifications were silenced, so I didn't get word that the departing flight had changed gates. It wasn't until I noticed that few people had gathered for the flight that I checked the airport schedule board, 20 minutes before boarding. I then told several people at the old gate of the change. If I was to receive a text I would have been notified of the change earlier, Or to hear an announcement over the airport intercom.

Canceled flight. No communication of this prior. Rescheduled to next day. Our good seats we purchased months ago turned into last row middle. No apology, reason, nor compensation for time and $ spent.

delayed flight 3 hours, then took 45 min to get to gate and another 10 min to open door

Delayed flight both ways. Then, on the return flight, we were stuck on the tarmac for at least 30+ minutes. Idk what happened, but this was a bad experience.

The plane was put out of service and had to wait for a new plane to be assigned. No one had any information and the information on the screens was never updated. The call wait time was 2 hours and the estimated time for text assistance was 55 minutes which was a lie because after 55 minutes nothing happened. I understand that delays happen but to not have anyone available to provide any update or reassurance was just negligent. Also, what is the point of having an 800 number if no one answers it and don’t get me started on the text message system. Ridiculous!

Great flight, no bumps to speak of, pleasant crew, good inflight entertainment choices

Coffee or tea service would be nice for an evening flight, water or juice not good enough.

Very expensive for short flights. Can’t communicate with Alaska Air about passport issue at check-in. Also no replies to my text messages. Wanted to extend our vacation for two more days but this expensive flight ticket is called SAVER and I couldn’t make changes or cancel or get a credit even, so I paid another airline for the return trip. Extremely disappointed.

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.

Delta flight was on time, seats were comfortable, and crew was nice.

Everything you need to know for your flight to Helena

Information on the airport you'll fly into in Helena

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