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Helena

$193+ Cheap flights from San Francisco to Helena (SFO - HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from San Francisco to Helena

Cheapest flights from San Francisco to Helena
Explore the most affordable flight options available from San Francisco to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:13 am
SFO
-
HLN
1 stop5h 32m
Alaska Airlines
Tue 4/286:22 pm
HLN
-
SFO
2 stops16h 34m
Alaska Airlines
Deal found 2/3$255
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
SFO
-
HLN
1 stop8h 29m
Alaska Airlines
Wed 3/44:36 pm
HLN
-
SFO
1 stop7h 20m
Alaska Airlines
Deal found 2/3$270
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:59 am
SFO
-
HLN
1 stop6h 46m
Alaska Airlines
Sun 4/126:22 pm
HLN
-
SFO
1 stop15h 58m
Alaska Airlines
Deal found 2/3$327
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:40 am
SFO
-
HLN
1 stop5h 44m
Delta
Sun 4/265:40 am
HLN
-
SFO
1 stop4h 15m
Delta
Deal found 2/1$328
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:31 pm
SFO
-
HLN
1 stop23h 14m
Alaska Airlines
Sun 4/266:22 pm
HLN
-
SFO
2 stops16h 36m
Alaska Airlines
Deal found 2/1$332
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:59 pm
SFO
-
HLN
1 stop4h 34m
Delta
Mon 6/812:50 pm
HLN
-
SFO
1 stop6h 45m
Delta
Deal found 2/3$361

Find flight deals from San Francisco to Helena

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(Alaska Airlines)

One-way from

$193
(Delta)

Popular in

March

Cheapest in

October
Provider with most accurate pricing for San Francisco-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Helena flights.
Search Deals
From San Francisco to Helena
Search Deals
One-way flight from San Francisco to Helena
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($58 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from San Francisco to Helena that are best for you.

Fly from

San Francisco

Fly to

Helena

Route

Depart

Return

Price

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sat 2/28

6:30 am-3:59 pm

1 stop8h 29m

Helena

Wed 3/4

4:36 pm-9:55 pm

1 stop6h 19m

$270

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 4/21

8:26 am-5:45 pm

2 stops8h 19m

Helena

Tue 4/28

6:22 pm-7:40 am

2 stops14h 18m

$294

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 4/8

9:59 am-5:45 pm

1 stop6h 46m

Helena

Sun 4/12

6:22 pm-9:20 am

1 stop15h 58m

$327

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 4/22

5:40 am-12:24 pm

1 stop5h 44m

Helena

Sun 4/26

5:40 am-8:55 am

1 stop4h 15m

$328

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 4/22

5:31 pm-5:45 pm

1 stop23h 14m

Helena

Sun 4/26

6:22 pm-9:58 am

2 stops16h 36m

$332

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 6/2

4:59 pm-10:33 pm

1 stop4h 34m

Helena

Mon 6/8

12:50 pm-6:35 pm

1 stop6h 45m

$361

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Fri 5/29

6:00 am-12:20 pm

1 stop5h 20m

$193

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sat 5/30

6:00 am-12:20 pm

1 stop5h 20m

$193

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sun 5/31

8:23 am-4:06 pm

1 stop6h 43m

$210

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 7/14

8:45 pm-4:22 pm

1 stop18h 37m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 14 results
1
2

Compare providers for flights from San Francisco to Helena

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Helena in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Helena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Helena

What is the cheapest month to book a flight from San Francisco to Helena?

Currently, August is the cheapest month in which you can book a flight from San Francisco to Helena (average of $44). Flying from San Francisco to Helena in December is currently the most expensive (average of $228). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated February 4, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from San Francisco to Helena to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,839 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,839 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,146 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco to Helena?

    Alaska Airlines can get you from San Francisco to Helena in just under 8h 29m. Your travel time can differ by up to . There are 816 mi between San Francisco and Helena.

  • What are the cheapest airlines flying from San Francisco to Helena round-trip?

    Cheapflights users have booked flights from San Francisco to Helena round-trip from $215. Another airline that can offer you cheap pricing is Alaska Airlines. Delta is 62% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from San Francisco to Helena that include hotel bookings?

    Yes. In addition to deals on San Francisco to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Helena.

  • Can I find deals for business class flights from San Francisco to Helena?

    Yes. Cheapflights offers flight deals from San Francisco to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from San Francisco to Helena (average of $44). Flying from San Francisco to Helena in December is currently the most expensive (average of $228). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from San Francisco to Helena

Discover the top 2 airlines that operate flights from San Francisco to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$408FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$292Average$522FlexibilityNo cancel feeOn-time75%

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