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Helena

$137+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap 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 agosto 14, 2025.

Round-trip from

$254
(Alaska Airlines)

One-way from

$137
(Hawaiian Airlines)

Popular in

March

Cheapest in

October

Average price

$360
From San Francisco to Helena
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One-way flight from San Francisco to Helena
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Highest demand for flights based on searches. 22% potential increase in price ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 agosto 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/98:00 amSFO - HLN
1 stop6h 21mAlaska Airlines
sáb. 9/134:02 pmHLN - SFO
1 stop6h 18mAlaska Airlines
Deal found 8/14$254
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/168:00 amSFO - HLN
1 stop6h 21mAlaska Airlines
jue. 9/254:02 pmHLN - SFO
1 stop6h 18mAlaska Airlines
Deal found 8/14$264
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
lun. 9/228:00 amSFO - HLN
1 stop6h 21mAlaska Airlines
mar. 9/234:02 pmHLN - SFO
1 stop6h 18mAlaska Airlines
Deal found 8/14$291
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/166:00 amSFO - HLN
2 stops8h 21mAlaska Airlines
mar. 9/234:02 pmHLN - SFO
1 stop5h 18mAlaska Airlines
Deal found 8/14$295
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/168:00 amSFO - HLN
1 stop6h 21mAlaska Airlines
lun. 9/294:02 pmHLN - SFO
2 stops8h 27mAlaska Airlines
Deal found 8/14$298
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
lun. 9/227:00 amSFO - HLN
1 stop7h 21mAlaska Airlines
jue. 9/254:02 pmHLN - SFO
1 stop5h 18mAlaska Airlines
Deal found 8/14$301
This Delta deal was found by Cheapflights users on 8/14. 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.
mar. 9/164:55 pmSFO - HLN
1 stop4h 19mDelta
dom. 9/285:45 amHLN - SFO
1 stop4h 01mDelta
Deal found 8/14$303
This Delta deal was found by Cheapflights users on 8/14. 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.
mar. 9/165:35 amSFO - HLN
1 stop5h 45mDelta
sáb. 9/271:00 pmHLN - SFO
2 stops11h 29mDelta
Deal found 8/14$304
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/166:00 amSFO - HLN
2 stops8h 21mAlaska Airlines
vie. 9/264:02 pmHLN - SFO
1 stop7h 12mAlaska Airlines
Deal found 8/14$305
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
lun. 9/226:00 amSFO - HLN
2 stops8h 21mAlaska Airlines
mié. 9/244:02 pmHLN - SFO
1 stop6h 18mAlaska Airlines
Deal found 8/14$320
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
mié. 9/176:00 amSFO - HLN
1 stop8h 21mAlaska Airlines
mar. 9/234:02 pmHLN - SFO
1 stop7h 12mAlaska Airlines
Deal found 8/14$321
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
vie. 9/59:19 pmSFO - HLN
1 stop17h 02mAlaska Airlines
mié. 9/104:02 pmHLN - SFO
1 stop6h 18mAlaska Airlines
Deal found 8/13$328

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 agosto 14, 2025.
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

mar. 9/9

8:00 am-3:21 pm

1 stop6h 21m

Helena

sáb. 9/13

4:02 pm-9:20 pm

1 stop6h 18m

$254

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/9

6:00 am-3:21 pm

1 stop8h 21m

Helena

mar. 9/16

4:02 pm-8:20 pm

1 stop5h 18m

$254

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

sáb. 9/6

6:00 am-3:21 pm

1 stop8h 21m

Helena

sáb. 9/13

4:02 pm-8:19 pm

1 stop5h 17m

$254

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/16

8:00 am-3:21 pm

1 stop6h 21m

Helena

mar. 9/23

4:02 pm-10:14 pm

1 stop7h 12m

$254

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/16

8:00 am-3:21 pm

1 stop6h 21m

Helena

mié. 9/24

4:02 pm-9:20 pm

1 stop6h 18m

$254

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/16

8:00 am-3:21 pm

1 stop6h 21m

Helena

vie. 9/26

4:02 pm-10:14 pm

1 stop7h 12m

$264

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/16

8:00 am-3:21 pm

1 stop6h 21m

Helena

jue. 9/25

4:02 pm-9:20 pm

1 stop6h 18m

$264

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

lun. 9/22

8:00 am-3:21 pm

1 stop6h 21m

Helena

mié. 9/24

4:02 pm-8:20 pm

1 stop5h 18m

$291

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

lun. 9/22

8:00 am-3:21 pm

1 stop6h 21m

Helena

mar. 9/23

4:02 pm-9:20 pm

1 stop6h 18m

$291

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mar. 9/16

8:00 am-3:21 pm

1 stop6h 21m

Helena

lun. 9/29

4:02 pm-10:14 pm

1 stop7h 12m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 14 results
1
2

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, February is the cheapest month in which you can book a flight from San Francisco to Helena (average of $353). Flying from San Francisco to Helena in May is currently the most expensive (average of $517). 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.

What is the cheapest time of day to fly from SFO to HLN?

Find hourly flight availability from San Francisco to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

One of the essential ways to save on airfare from San Francisco to Helena is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 60% on airfare.

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 agosto 14, 2025.
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
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 65% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Francisco to Helena one-way?

    One-way options have recently been found by users for as low as $137 on Hawaiian Airlines. Other airlines that offer cheap prices include Alaska Airlines from $193 and Delta from $260 one-way.

  • 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, February is the cheapest month in which you can book a flight from San Francisco to Helena (average of $353). Flying from San Francisco to Helena in May is currently the most expensive (average of $517). 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$408FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$273Average$518FlexibilityNo cancel feeOn-time75%

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