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SFO - HLN

$300 Find cheap flights from San Francisco 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 from San Francisco to Helena departing on 6/22. 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
0 bags
Thu 7/4
Thu 7/11

Search hundreds of travel sites at once for deals on flights to Helena

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Helena, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Helena, as well as popular online travel agencies
In the last 7 days travelers have searched 44,060,346 times on KAYAK, and here is why:

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Cheap flight deals from San Francisco to Helena (SFO-HLN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco 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 and deals for you by selecting your travel dates.
Choose your dates
8:00 am - 3:33 pmSFO-HLN
6h 33m1 stop
4:13 pm - 11:44 pmHLN-SFO
8h 31m1 stop
$301Alaska Airlines
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Wed, Oct 16 - Wed, Oct 23
7:00 am - 3:33 pmSFO-HLN
7h 33m1 stop
4:13 pm - 8:25 amHLN-SFO
17h 12m2 stops
$306Alaska Airlines
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Wed, Oct 16 - Wed, Oct 23
4:47 pm - 11:59 pmSFO-HLN
6h 12m1 stop
3:42 pm - 8:14 amHLN-SFO
17h 32m1 stop
$331Alaska Airlines
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Thu, Aug 15 - Mon, Aug 19
6:00 am - 11:59 pmSFO-HLN
16h 59m1 stop
3:42 pm - 8:15 amHLN-SFO
17h 33m1 stop
$340Alaska Airlines
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Fri, Aug 9 - Mon, Aug 12
6:57 pm - 3:09 pmSFO-HLN
19h 12m1 stop
3:42 pm - 7:53 amHLN-SFO
17h 11m2 stops
$341Alaska Airlines
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Fri, Aug 9 - Mon, Aug 12
5:15 pm - 10:45 pmSFO-HLN
4h 30m1 stop
6:00 am - 9:19 amHLN-SFO
4h 19m1 stop
$713Delta
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Sat, Jun 22 - Fri, Jul 5
10:35 pm - 1:39 pmSFO-HLN
14h 04m2 stops
6:53 am - 12:51 amHLN-SFO
18h 58m2 stops
$729United Airlines
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Mon, Jun 17 - Thu, Jun 20
5:15 pm - 10:45 pmSFO-HLN
4h 30m1 stop
6:00 am - 9:19 amHLN-SFO
4h 19m1 stop
$933Delta
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Sat, Jun 22 - Fri, Jul 5
12:37 pm - 10:45 pmSFO-HLN
9h 08m2 stops
6:00 am - 9:19 amHLN-SFO
4h 19m1 stop
$1,033Delta
Find Deal
Sat, Jun 22 - Fri, Jul 5
6:05 am - 12:39 pmSFO-HLN
5h 34m1 stop
6:00 am - 9:00 amHLN-SFO
4h 00m1 stop
$1,303Delta
Find Deal
Sat, Jun 15 - Sun, Jun 23

Flights from San Francisco to Helena - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Helena to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to Helena?

The average price of all flights from San Francisco to Helena clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Helena on a Sunday and more expensive on a Friday. On your return trip to San Francisco, you should consider flying back on a Monday, and avoid Sundays for better deals.

What is the cheapest month to fly from San Francisco to Helena?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Helena, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to Helena is January, where tickets cost $316 on average. On the other hand, the most expensive months are March and December, where the average cost of tickets is $627 and $586 respectively.

Which airlines provide the cheapest flights from San Francisco to Helena?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting San Francisco to Helena were found on Alaska Airlines ($301) and Delta ($713). Alaska Airlines proposed the cheapest one-way flight at $300.

Good to know

Low season

January

High season

July

Cheapest flight

$300
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from San Francisco to Helena

When to book flights from San Francisco to Helena

Are your dates flexible? Find out the best times to travel from San Francisco to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Helena

  • What is the cheapest flight from San Francisco to Helena?

    In the last 3 days, the lowest price for a flight from San Francisco to Helena was $300 for a one-way ticket and $301 for a round-trip.

  • Do I need a passport to fly between San Francisco and Helena?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from San Francisco to Helena?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Helena?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and Helena, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Helena, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Helena are Delta and Alaska Airlines. With an average price for the route of $437 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $386 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from San Francisco 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 to Helena.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from San Francisco 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 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 with another airline. Booking your flights between San Francisco and HLN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from San Francisco to Helena

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Helena. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco 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 9214 reviews
8.6Crew
8.2Boarding
7.9Comfort
7.3Entertainment
7.3Food
Airline reviews

The flight was delayed by more than two hours. A notification ahead of time would be most helpful.

6.0 GoodAnonymous, Jun 2024SFO - JFK
Read more about Alaska Airlines reviews

The flight was delayed by more than two hours. A notification ahead of time would be most helpful.

Plane hit turbulence diverted to Houston. We'll probably get in after 3am

Given incorrect gate upon check-in, corrected by the gate attendant, D6 rather than D5, minor inconvenience. As with the previous flight, passengers were admonished to voluntarily gate-check carry-on luggage with the statement that those in the last boarding group would have no choice but to do so. If the Boeing 737 MAX8/MAX9 doesn't have room for carry-ons it's an interior design flaw on the part of Boeing. Posting an advance warning would be helpful, such as "Boeing 737 MAX planes feature limited carry-on space. Please be aware." SFO's amenities and TSA much better than MCO's. Crew was amazing! Brought my own food because Alaska's onboard selection has soy in everything. Beverage service was excellent. This was the first and last trip with Alaska after the previous flight's issues. It's no reflection on the crew of this flight. They were great.

The flight was mostly smooth and quiet. No seatback screens.

I enjoyed the leg room at my seat, but I was in an exit row.

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

They canceled the flight 30 minutes prior to departure without any heads up.

All parts were excellent, especially staff at bag tag printing and inflight crew. Just the normal differences from past air travel could be improved but we’ve learned to accept those—cramped seats, minimal food/beverage, etc.

Attentive crew. Best of all was the empty seat between me and my rowmate.

We had a very scary attempted landing in Palm Springs and were redirected to Ontario. It was a stressful flight.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

On time take off…US cabins look tired and need of refresh!

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

Book cheap flights from San Francisco to Helena

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Helena found on KAYAK in the last 72 hours.
6/22Sat
1 stopAlaska Airlines
8h 09mSFO-HLN
$300
6/22Sat
2 stopsUnited Airlines
14h 26mSFO-HLN
$458

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San Francisco - Helena Flights

Departure:

San Francisco (SFO)United States

Destination:

Helena (HLN)United States

Return flight deals:

Helena - San Francisco

Cabin classes:

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