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San Francisco Bay Area

$256+ Cheap flights from Helena (HLN) to San Francisco Bay Area

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SFO
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
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 octubre 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(Alaska Airlines)

Popular in

January

Cheapest in

May

Average price

$291
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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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 22, 2025.

This Orbitz deal was found by Cheapflights users on 10/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:32 pmHLN - SFO
1 stop6h 22mAlaska Airlines
dom. 12/2810:45 pmSFO - HLN
1 stop18h 10mAlaska Airlines
Deal found 10/21$373
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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. 12/196:32 pmHLN - SJC
1 stop6h 27mAlaska Airlines
dom. 12/283:54 pmSJC - HLN
1 stop25h 01mAlaska Airlines
Deal found 10/21$528
This Delta deal was found by Cheapflights users on 10/20. 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. 11/41:00 pmHLN - SFO
1 stop4h 00mDelta
sáb. 11/86:00 amSFO - HLN
1 stop5h 20mDelta
Deal found 10/20$539
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/56:40 amHLN - SJC
1 stop8h 02mUnited Airlines
vie. 11/712:30 pmSJC - HLN
1 stop7h 52mUnited Airlines
Deal found 10/21$539
This Orbitz deal was found by Cheapflights users on 10/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:32 pmHLN - OAK
1 stop6h 27mAlaska Airlines
dom. 12/286:10 amOAK - HLN
1 stop10h 45mAlaska Airlines
Deal found 10/21$569
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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. 11/56:13 pmHLN - SFO
2 stops20h 55mAlaska Airlines
dom. 11/98:00 amSFO - HLN
1 stop8h 36mAlaska Airlines
Deal found 10/21$604
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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. 11/46:13 pmHLN - SFO
2 stops24h 14mAlaska Airlines
sáb. 11/811:29 amSFO - HLN
1 stop5h 07mAlaska Airlines
Deal found 10/20$609
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/262:22 pmHLN - SFO
1 stop6h 24mUnited Airlines
dom. 11/3010:35 pmSFO - HLN
1 stop21h 47mUnited Airlines
Deal found 10/21$639
This United Airlines deal was found by Cheapflights users on 10/21. 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.
vie. 12/192:26 pmHLN - SFO
2 stops22h 24mUnited Airlines
dom. 12/288:00 pmSFO - HLN
2 stops16h 45mUnited Airlines
Deal found 10/21$659
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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. 11/56:13 pmHLN - SJC
2 stops16h 35mAlaska Airlines
vie. 11/711:51 amSJC - HLN
1 stop4h 45mAlaska Airlines
Deal found 10/21$685
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/262:22 pmHLN - SJC
1 stop7h 31mUnited Airlines
dom. 11/306:40 pmSJC - HLN
1 stop25h 42mUnited Airlines
Deal found 10/21$787
This Delta deal was found by Cheapflights users on 10/21. 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.
mié. 11/265:30 amHLN - OAK
1 stop7h 18mDelta
dom. 11/305:55 amOAK - HLN
1 stop5h 31mDelta
Deal found 10/21$1,174

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 octubre 22, 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

vie. 2/6

5:59 pm-1:08 pm

1 stop20h 09m

San Jose

lun. 2/9

6:02 pm-5:22 pm

1 stop22h 20m

$256

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

sáb. 3/7

4:10 pm-10:18 pm

1 stop7h 08m

San Francisco

mié. 3/11

9:10 am-3:43 pm

1 stop5h 33m

$275

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

sáb. 3/7

4:10 pm-10:03 pm

1 stop6h 53m

San Jose

mar. 3/10

8:10 am-3:43 pm

1 stop6h 33m

$283

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

sáb. 3/7

12:50 pm-4:29 pm

1 stop4h 39m

San Francisco

mié. 3/11

5:45 am-12:27 pm

1 stop5h 42m

$289

HelenaOakland

HLN - OAK

HLNOAK

Helena

jue. 3/5

4:10 pm-11:38 pm

1 stop8h 28m

Oakland

lun. 3/9

6:30 am-3:43 pm

1 stop8h 13m

$303

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

sáb. 3/7

12:50 pm-4:31 pm

1 stop4h 41m

San Jose

mar. 3/10

7:15 am-10:38 pm

2 stops14h 23m

$306

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

sáb. 3/7

4:10 pm-7:49 am

2 stops16h 39m

San Francisco

mié. 3/11

6:00 am-3:43 pm

1 stop8h 43m

$311

HelenaOakland

HLN - OAK

HLNOAK

Helena

jue. 3/5

4:10 pm-11:38 pm

1 stop8h 28m

Oakland

lun. 3/9

6:45 pm-3:43 pm

2 stops19h 58m

$358

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

vie. 12/19

6:32 pm-11:54 pm

1 stop6h 22m

San Francisco

dom. 12/28

10:45 pm-5:55 pm

1 stop18h 10m

$373

HelenaOakland

HLN - OAK

HLNOAK

Helena

vie. 12/19

6:32 pm-11:59 pm

1 stop6h 27m

Oakland

dom. 12/28

6:10 am-5:55 pm

1 stop10h 45m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 15 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, July is the cheapest month in which you can book a flight from Helena to San Francisco Bay Area (average of $41). Flying from Helena to San Francisco Bay Area in May is currently the most expensive (average of $227). 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 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 octubre 22, 2025.
See what other customers who have flown with Delta from Helena to San Francisco Bay Area have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,981 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
7,981 reviews
Delta
7.9
Good
7,981 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    A quick flight from Helena to San Francisco Bay Area can take about 4h 39m. Alaska Airlines provides one of the quickest options available for as low as $289. The distance between Helena and San Francisco Bay Area is about 816 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Helena - San Jose, Helena - San Francisco 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, July is the cheapest month in which you can book a flight from Helena to San Francisco Bay Area (average of $41). Flying from Helena to San Francisco Bay Area in May is currently the most expensive (average of $227). 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.

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Top airline flying from Helena to San Francisco Bay Area

Discover the top airline 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 octubre 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$336Average$418FlexibilityNo cancel feeOn-timeN/A

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