Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SFO - HLN

Find cheap flights from San Francisco to Helena from $162

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 6/4. 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
Fri 6/7
Fri 6/14

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 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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
6:00 am - 11:59 pmSFO-HLN
16h 59m1 stop
3:01 pm - 9:35 pmHLN-SFO
7h 34m2 stops
$319Alaska Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
5:50 am - 12:43 pmSFO-HLN
5h 53m1 stop
6:00 am - 9:00 amHLN-SFO
4h 00m1 stop
$328Delta
Find Deal
Wed, Jun 5 - Wed, Jun 12
7:05 am - 3:05 pmSFO-HLN
7h 00m1 stop
3:42 pm - 8:15 amHLN-SFO
17h 33m1 stop
$351Alaska Airlines
Find Deal
Tue, Jul 2 - Mon, Jul 8
6:05 am - 12:39 pmSFO-HLN
5h 34m1 stop
6:00 am - 9:00 amHLN-SFO
4h 00m1 stop
$353Delta
Find Deal
Mon, Jun 17 - Thu, Jun 27
5:55 am - 10:46 pmSFO-HLN
15h 51m2 stops
1:15 pm - 4:20 pmHLN-SFO
4h 05m1 stop
$356Delta
Find Deal
Tue, Jul 2 - Wed, Jul 10
7:00 am - 11:59 pmSFO-HLN
15h 59m2 stops
3:01 pm - 7:26 amHLN-SFO
17h 25m2 stops
$371Alaska Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
8:00 am - 3:05 pmSFO-HLN
6h 05m1 stop
3:42 pm - 9:15 amHLN-SFO
18h 33m1 stop
$376Alaska Airlines
Find Deal
Wed, Jul 3 - Mon, Jul 8
7:15 am - 9:18 pmSFO-HLN
13h 03m2 stops
2:30 pm - 11:06 pmHLN-SFO
9h 36m2 stops
$588United Airlines
Find Deal
Thu, Jul 4 - Tue, Jul 9
11:12 pm - 9:26 pmSFO-HLN
21h 14m2 stops
2:30 pm - 12:56 amHLN-SFO
11h 26m2 stops
$621United Airlines
Find Deal
Mon, Jun 17 - Thu, Jun 27
11:12 pm - 9:26 pmSFO-HLN
21h 14m2 stops
2:15 pm - 12:51 amHLN-SFO
11h 36m2 stops
$827United Airlines
Find Deal
Thu, May 23 - Tue, May 28

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 Monday and more expensive on a Saturday. 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 July, where the average cost of tickets is $627 and $602 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 ($319) and Delta ($328). Alaska Airlines proposed the cheapest one-way flight at $162.

Good to know

Low season

January

High season

August

Cheapest flight

$162
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 3% 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 $162 for a one-way ticket and $319 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 $482 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 $370 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 9141 reviews
7.9Comfort
8.2Boarding
8.6Crew
7.3Food
7.3Entertainment
Airline reviews

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

4.0 OkayRandy, May 2024SFO - SEA
Read more about Alaska Airlines reviews

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.

Every thing means , crew, service, timing, boarding is very good.

I like that we took off on time and arrived a bit early. I like that I could gate check my bag and board early. I don't like how crowded the flight was. I had ok leg room, but could feel every move of the person next to me. And the aisles are very narrow. The gate and flight crews were terrific.

The flight was diverted and departed from San Jose instead of San Francisco. This could’ve been executed more smoothly because after arriving in San Jose it seemed like nothing was being processed correctly as needed for the gate agents to do their jobs well and the flight to leave on time

Excellent service and prices. I was not award of inflight entertainment.

Both flights from NYC to SFO were delayed more than an hour. No wifi, no screens/movies etc. The crew was nice.

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).

You need to be a hacker to get the (Free) WiFi

I guess they don’t serve drinks on planes anymore

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.

Paid WiFi was only available for a few minutes. Avoid at all costs.

Everything was great, only problem was that flights were delayed

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.
6/4Tue
2 stopsAlaska Airlines
9h 19mSFO-HLN
$162
6/5Wed
1 stopAlaska Airlines
16h 59mSFO-HLN
$163
6/4Tue
1 stopUnited Airlines
6h 03mSFO-HLN
$164
6/3Mon
2 stopsAlaska Airlines
23h 09mSFO-HLN
$218
6/3Mon
1 stopDelta
5h 53mSFO-HLN
$219
6/5Wed
2 stopsAlaska Airlines
9h 30mSFO-HLN
$269

Search by stops

Search by airline

Search by price

San Francisco - Helena Flights

Departure:

San Francisco (undefined)United States

Destination:

Helena (HLN)United States

Return flight deals:

Helena - San Francisco

Cabin classes:

Browse destinations: