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San Francisco Bay Area

$119+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SFO
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
1 adult, Economy
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Cheap 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 diciembre 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
mar. 12/306:10 amHLN - SFO
1 stop16h 30mUnited Airlines
sáb. 1/32:29 pmSFO - HLN
1 stop6h 02mUnited Airlines
Deal found 12/15$692
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/285:30 amHLN - SFO
1 stop4h 33mDelta
jue. 1/14:55 pmSFO - HLN
1 stop4h 35mDelta
Deal found 12/13$769
This Delta deal was found by Cheapflights users on 12/14. 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.
mié. 12/245:30 amHLN - SFO
1 stop4h 33mDelta
lun. 12/296:00 amSFO - HLN
1 stop5h 30mDelta
Deal found 12/14$772
This Delta deal was found by Cheapflights users on 12/14. 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.
mié. 12/245:30 amHLN - OAK
1 stop7h 24mDelta
lun. 12/295:53 amOAK - HLN
1 stop5h 37mDelta
Deal found 12/14$772
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/282:26 pmHLN - SFO
2 stops17h 50mUnited Airlines
jue. 1/12:29 pmSFO - HLN
1 stop6h 02mUnited Airlines
Deal found 12/13$787
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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. 12/246:32 pmHLN - SFO
2 stops17h 02mAlaska Airlines
lun. 12/299:41 pmSFO - HLN
1 stop19h 14mAlaska Airlines
Deal found 12/14$823
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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. 12/246:32 pmHLN - OAK
1 stop6h 27mAlaska Airlines
lun. 12/298:32 pmOAK - HLN
2 stops20h 23mAlaska Airlines
Deal found 12/14$830
This Delta deal was found by Cheapflights users on 12/14. 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.
mié. 12/245:30 amHLN - SJC
1 stop4h 40mDelta
lun. 12/295:55 amSJC - HLN
1 stop5h 35mDelta
Deal found 12/14$850
This Delta deal was found by Cheapflights users on 12/15. 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.
dom. 12/285:30 amHLN - SFO
1 stop4h 33mDelta
lun. 12/296:00 amSFO - HLN
1 stop5h 30mDelta
Deal found 12/15$907
This United Airlines deal was found by Cheapflights users on 12/15. 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.
dom. 12/282:26 pmHLN - SFO
1 stop6h 28mUnited Airlines
lun. 12/297:05 pmSFO - HLN
2 stops25h 26mUnited Airlines
Deal found 12/15$935

Find 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 diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Alaska Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

July

Cheapest in

January

Average price

$371
Provider with most accurate pricing for Helena-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-San Francisco flights.
Search Deals
From Helena to San Francisco Bay Area
Search Deals
One-way flight from Helena to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 diciembre 15, 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 Francisco

HLN - SFO

HLNSFO

Helena

jue. 1/29

6:48 pm-11:03 pm

1 stop5h 15m

San Francisco

dom. 2/1

9:00 am-6:11 pm

1 stop8h 11m

$238

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

sáb. 3/7

4:36 pm-10:06 pm

1 stop6h 30m

San Francisco

jue. 3/12

8:42 am-3:59 pm

1 stop6h 17m

$238

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

vie. 1/9

1:10 pm-6:19 pm

1 stop6h 09m

San Francisco

mié. 1/14

5:45 am-12:27 pm

1 stop5h 42m

$239

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

lun. 1/12

5:30 am-8:57 am

1 stop4h 27m

San Jose

sáb. 1/17

5:04 pm-10:29 pm

1 stop4h 25m

$264

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

vie. 1/9

5:30 am-8:57 am

1 stop4h 27m

San Jose

mié. 1/14

5:54 am-12:27 pm

1 stop5h 33m

$264

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

lun. 1/12

6:48 pm-11:03 pm

1 stop5h 15m

San Francisco

sáb. 1/17

12:00 pm-6:11 pm

1 stop5h 11m

$278

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

vie. 1/9

6:48 pm-11:03 pm

1 stop5h 15m

San Francisco

mar. 1/13

12:00 pm-6:11 pm

1 stop5h 11m

$278

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

sáb. 1/24

6:48 pm-9:48 am

1 stop16h 00m

San Jose

mar. 1/27

11:00 am-6:11 pm

1 stop6h 11m

$280

HelenaOakland

HLN - OAK

HLNOAK

Helena

sáb. 1/24

6:48 pm-10:28 am

1 stop16h 40m

Oakland

mié. 1/28

11:08 am-6:11 pm

1 stop6h 03m

$280

HelenaOakland

HLN - OAK

HLNOAK

Helena

lun. 1/12

6:48 pm-11:03 am

1 stop17h 15m

Oakland

sáb. 1/17

8:10 am-6:11 pm

1 stop9h 01m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 30 results
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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 $219). 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 diciembre 15, 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
8,007 reviews

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

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 5h 15m. Alaska Airlines provides one of the quickest options available for as low as $238. 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 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, 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 $219). 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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$261FlexibilityNo cancel feeOn-timeN/A

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