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$123+ Cheap flights from Helena (HLN) to San Francisco Bay Area

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SFO
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Helena to San Francisco Bay Area

Keep the following information in mind while searching for Helena to San Francisco Bay Area flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$245
(Delta)

One-way from

$123
(Delta)

Popular in

March

Cheapest in

May

Average price

$449
Provider with most accurate pricing for Helena-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Helena-San Francisco flights.
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From Helena to San Francisco Bay Area
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One-way flight from Helena to San Francisco Bay Area
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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Helena to San Francisco Bay Area

Cheapest flights from Helena to San Francisco Bay Area
Explore the most affordable flight options available from Helena to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Delta deal was found by Cheapflights users on 4/2. 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.
Sat 5/35:45 amHLN - SJC
1 stop4h 32mDelta
Sat 5/105:02 pmSJC - HLN
1 stop4h 14mDelta
Deal found 4/2$245
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/114:11 pmHLN - SJC
1 stop7h 27mAlaska Airlines
Sat 6/149:46 pmSJC - HLN
1 stop16h 45mAlaska Airlines
Deal found 4/1$303
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/304:11 pmHLN - SFO
1 stop6h 00mAlaska Airlines
Thu 6/128:20 amSFO - HLN
1 stop6h 11mAlaska Airlines
Deal found 4/1$314
This Hawaiian Airlines deal was found by Cheapflights users on 4/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/164:11 pmHLN - OAK
1 stop7h 00mHawaiian Airlines
Sun 5/187:00 amOAK - HLN
1 stop7h 31mHawaiian Airlines
Deal found 4/1$357
This Delta deal was found by Cheapflights users on 4/2. 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.
Mon 8/45:45 amHLN - SFO
1 stop17h 09mDelta
Sun 8/245:45 amSFO - HLN
1 stop5h 50mDelta
Deal found 4/2$407
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/214:08 pmHLN - OAK
1 stop8h 51mAlaska Airlines
Mon 6/237:58 pmOAK - HLN
1 stop18h 33mAlaska Airlines
Deal found 4/2$419
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/166:45 amHLN - SFO
1 stop7h 46mUnited Airlines
Sun 4/202:25 pmSFO - HLN
1 stop6h 00mUnited Airlines
Deal found 4/1$519
This Hawaiian Airlines deal was found by Cheapflights users on 4/1. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/134:19 pmHLN - SFO
1 stop5h 50mHawaiian Airlines
Wed 4/169:20 amSFO - HLN
1 stop5h 19mHawaiian Airlines
Deal found 4/1$667
This Delta deal was found by Cheapflights users on 4/2. 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.
Fri 6/205:45 amHLN - OAK
1 stop7h 05mDelta
Sun 6/226:00 amOAK - HLN
1 stop5h 38mDelta
Deal found 4/2$1,079

Cheapflights Fare Finder

Customize your flight search to find flights from Helena to San Francisco Bay Area 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 April 2, 2025.
Use the filters below to find and compare flights from Helena to San Francisco Bay Area that are best for you.

Fly from

Helena

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 5/3

5:45 am-9:17 am

1 stop4h 32m

San Jose

Sat 5/10

5:02 pm-10:16 pm

1 stop4h 14m

$245

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Wed 6/11

4:11 pm-10:38 pm

1 stop7h 27m

San Jose

Sat 6/14

9:46 pm-3:31 pm

1 stop16h 45m

$303

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Fri 5/30

4:11 pm-9:11 pm

1 stop6h 00m

San Francisco

Thu 6/12

8:20 am-3:31 pm

1 stop6h 11m

$314

HelenaOakland

HLN - OAK

HLNOAK

Helena

Fri 5/16

4:11 pm-10:11 pm

1 stop7h 00m

Oakland

Sun 5/18

7:00 am-3:31 pm

1 stop7h 31m

$357

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Mon 8/4

5:45 am-9:54 pm

1 stop17h 09m

San Francisco

Sun 8/24

5:45 am-12:35 pm

1 stop5h 50m

$407

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 6/21

4:08 pm-11:59 pm

1 stop8h 51m

Oakland

Mon 6/23

7:58 pm-3:31 pm

1 stop18h 33m

$419

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Wed 4/16

6:45 am-1:31 pm

1 stop7h 46m

San Francisco

Sun 4/20

2:25 pm-9:25 pm

1 stop6h 00m

$519

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Sun 4/13

4:19 pm-9:09 pm

1 stop5h 50m

San Francisco

Wed 4/16

9:20 am-3:39 pm

1 stop5h 19m

$667

HelenaOakland

HLN - OAK

HLNOAK

Helena

Fri 6/20

5:45 am-11:50 am

1 stop7h 05m

Oakland

Sun 6/22

6:00 am-12:38 pm

1 stop5h 38m

$1,079

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Thu 5/15

1:01 pm-4:12 pm

1 stop4h 11m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 14 results
1
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Best time to book a flight from Helena to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Helena 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 Helena to San Francisco Bay Area

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

Currently, January is the cheapest month in which you can book a flight from Helena to San Francisco Bay Area (average of $276). Flying from Helena to San Francisco Bay Area in June is currently the most expensive (average of $393). 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 HLN to XIH?

Find hourly flight availability from Helena to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

When flying from Helena to San Francisco Bay Area, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 in.

Temperature in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco Bay Area, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated April 2, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Helena to San Francisco Bay Area by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,824 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,824 reviews
Alaska Airlines
8.0
Very good
9,824 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,824 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,344 reviews
Alaska Airlines
8.0
Very good
9,824 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,616 reviews
Alaska Airlines
8.0
Very good
9,824 reviews

Entertainment

7.1

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

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

  • What airport do you fly from for flights from Helena to San Francisco Bay Area?

    Helena (HLN) is the airport you will fly out of if you book a flight from Helena to San Francisco Bay Area. It is only a 2.7 mi journey to Helena (HLN) from Helena’s city center.

  • What are the most popular routes from Helena to San Francisco Bay Area?

    Most travelers choose Helena - San Francisco, Helena - San Jose or Helena - Oakland when deciding on the best route from Helena to San Francisco Bay Area.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to San Francisco Bay Area 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 Helena to San Francisco Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Helena to San Francisco Bay Area (average of $276). Flying from Helena to San Francisco Bay Area in June is currently the most expensive (average of $393). 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 Helena to San Francisco Bay Area

Discover the top 2 airlines that operate flights from Helena to San Francisco Bay Area. 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$246Average$377FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$273Average$445FlexibilityNo cancel feeOn-time75%

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