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Helena

$119+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$236
(Hawaiian Airlines)

One-way from

$119
(Delta)

Popular in

March

Cheapest in

October

Average price

$358
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. 28% potential increase in price ($230 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/2. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:00 amSFO - HLN
1 stop6h 21mHawaiian Airlines
Sat 9/274:02 pmHLN - SFO
1 stop6h 18mHawaiian Airlines
Deal found 7/2$236
This Delta deal was found by Cheapflights users on 7/2. 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 8/55:35 amSFO - HLN
1 stop5h 45mDelta
Tue 8/125:50 amHLN - SFO
1 stop4h 14mDelta
Deal found 7/2$283
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/248:00 amSFO - HLN
1 stop6h 21mAlaska Airlines
Sat 9/274:02 pmHLN - SFO
2 stops8h 38mAlaska Airlines
Deal found 6/30$285
This United Airlines deal was found by Cheapflights users on 7/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/208:35 amSFO - HLN
1 stop7h 20mUnited Airlines
Sat 7/265:39 pmHLN - SFO
1 stop6h 31mUnited Airlines
Deal found 7/3$537

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 July 3, 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

Wed 9/24

8:00 am-3:21 pm

1 stop6h 21m

Helena

Sat 9/27

4:02 pm-9:20 pm

1 stop6h 18m

$236

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 8/5

5:35 am-12:20 pm

1 stop5h 45m

Helena

Tue 8/12

5:50 am-9:04 am

1 stop4h 14m

$283

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 9/24

8:00 am-3:21 pm

1 stop6h 21m

Helena

Sat 9/27

4:02 pm-11:40 pm

2 stops8h 38m

$285

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Sun 7/20

8:35 am-4:55 pm

1 stop7h 20m

Helena

Sat 7/26

5:39 pm-11:10 pm

1 stop6h 31m

$537

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 8/19

5:03 pm-10:13 pm

1 stop4h 10m

$119

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Tue 8/19

8:00 am-3:21 pm

2 stops30h 21m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 July is currently the most expensive (average of $545). 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 July 3, 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 July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines 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

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

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

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

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
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

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 $236. Other airlines that can offer you cheap pricing are Delta, from $283, and Alaska Airlines, from $285. Hawaiian Airlines is 58% 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, 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 July is currently the most expensive (average of $545). 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$273Average$509FlexibilityNo cancel feeOn-time75%
DeltaCheapest$294Average$408FlexibilityNo cancel feeOn-timeN/A

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