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Helena

$119+ Cheap flights from San Francisco Bay Area to Helena (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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HLN
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find flight deals from San Francisco Bay Area to Helena

Cheapest flights from San Francisco Bay Area to Helena
Explore the most affordable flight options available from San Francisco Bay Area to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:00 amSFO - HLN
1 stop7h 51mMultiple Airlines
Thu 12/116:28 pmHLN - SFO
1 stop6h 31mMultiple Airlines
Deal found 10/20$247
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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.
Thu 12/112:21 pmSTS - HLN
1 stop26h 30mAlaska Airlines
Mon 12/156:28 pmHLN - STS
1 stop20h 01mAlaska Airlines
Deal found 10/18$282
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.
Thu 12/48:00 amSFO - HLN
2 stops8h 51mAlaska Airlines
Thu 12/116:28 pmHLN - SFO
1 stop6h 31mAlaska Airlines
Deal found 10/20$388
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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.
Thu 12/113:49 pmSJC - HLN
1 stop25h 02mAlaska Airlines
Sat 1/36:32 pmHLN - SJC
1 stop6h 27mAlaska Airlines
Deal found 10/18$473
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/269:50 amSFO - HLN
1 stop8h 02mAlaska Airlines
Mon 12/17:32 pmHLN - SFO
2 stops22h 52mAlaska Airlines
Deal found 10/18$491
This Delta deal was found by Cheapflights users on 10/18. 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.
Sun 11/25:55 amSJC - HLN
1 stop5h 25mDelta
Thu 11/61:00 pmHLN - SJC
1 stop4h 04mDelta
Deal found 10/18$539
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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.
Mon 11/36:30 amOAK - HLN
1 stop10h 06mAlaska Airlines
Fri 11/76:13 pmHLN - OAK
1 stop6h 46mAlaska Airlines
Deal found 10/19$576
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.
Tue 11/47:00 amSTS - HLN
1 stop9h 36mAlaska Airlines
Sat 11/86:13 pmHLN - STS
1 stop4h 52mAlaska Airlines
Deal found 10/20$619
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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.
Sun 11/29:32 amSJC - HLN
2 stops31h 04mAlaska Airlines
Thu 11/66:13 pmHLN - SJC
1 stop5h 46mAlaska Airlines
Deal found 10/18$626
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/227:01 pmSJC - HLN
1 stop22h 51mAlaska Airlines
Sat 11/297:32 pmHLN - SJC
1 stop5h 26mAlaska Airlines
Deal found 10/18$854

Cheap flight deals from San Francisco Bay Area to Helena

Keep the following information in mind while searching for San Francisco Bay Area to Helena flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$247
(Trip.com)

One-way from

$119
(Alaska Airlines)

Popular in

March

Cheapest in

October

Average price

$292
Provider with most accurate pricing for San Francisco-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Helena flights.
Search Deals
From San Francisco Bay Area to Helena
Search Deals
One-way flight from San Francisco Bay Area to Helena
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco Bay Area 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 October 20, 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to Helena that are best for you.

Fly from

San Francisco Bay Area

Fly to

Helena

Route

Depart

Return

Price

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Thu 12/4

9:00 am-5:51 pm

1 stop7h 51m

Helena

Thu 12/11

6:28 pm-11:59 pm

1 stop6h 31m

$247

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 1/15

9:05 am-5:22 pm

1 stop7h 17m

Helena

Mon 1/19

5:59 pm-9:48 am

1 stop16h 49m

$280

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Thu 12/11

2:21 pm-5:51 pm

1 stop26h 30m

Helena

Mon 12/15

6:28 pm-1:29 pm

1 stop20h 01m

$282

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Thu 1/15

7:00 am-5:22 pm

1 stop9h 22m

Helena

Mon 1/19

5:59 pm-5:59 pm

1 stop25h 00m

$283

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Thu 12/4

8:00 am-5:51 pm

2 stops8h 51m

Helena

Thu 12/11

6:28 pm-11:59 pm

1 stop6h 31m

$388

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

11:16 am-5:51 pm

1 stop5h 35m

Helena

Sat 1/3

6:32 pm-11:59 pm

1 stop6h 27m

$481

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

Wed 11/26

9:50 am-6:52 pm

1 stop8h 02m

Helena

Mon 12/1

7:32 pm-5:24 pm

2 stops22h 52m

$491

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 11/2

5:55 am-12:20 pm

1 stop5h 25m

Helena

Thu 11/6

1:00 pm-4:04 pm

1 stop4h 04m

$539

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Mon 11/3

6:30 am-5:36 pm

1 stop10h 06m

Helena

Fri 11/7

6:13 pm-11:59 pm

1 stop6h 46m

$576

Santa RosaHelena

STS - HLN

STSHLN

Santa Rosa Sonoma County

Tue 11/4

7:00 am-5:36 pm

1 stop9h 36m

Helena

Sat 11/8

6:13 pm-10:05 pm

1 stop4h 52m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 26 results
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Best time to book a flight from San Francisco Bay Area to Helena

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

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

Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to Helena (average of $44). Flying from San Francisco Bay Area to Helena in December is currently the most expensive (average of $254). 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 XIH to HLN?

Find hourly flight availability from San Francisco Bay Area 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 October 20, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco Bay Area to Helena in the morning. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at noon.

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 October 20, 2025.
Read reviews from past customers who have flown Alaska Airlines and Delta from San Francisco Bay Area to Helena. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,136 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,136 reviews
Alaska Airlines
8.0
Very good
11,136 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
7,978 reviews
Alaska Airlines
8.0
Very good
11,136 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to Helena. 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 into for flights to Helena from San Francisco Bay Area?

    Located just 2.7 mi from the city center, Helena (HLN) is the airport most travelers will use when flying to Helena from San Francisco Bay Area.

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

    Airlines like Alaska Airlines and Delta fly from San Francisco Bay Area to Helena in about 4h 33m. The time it takes to get you to your destination can typically vary by up to 2h 44m. Airlines will cover a distance of 806 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $119 on Alaska Airlines. Other airlines that offer cheap prices include Delta from $125 and United Airlines from $233 one-way.

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

    While some choose either San Jose - Helena or Oakland - Helena, San Francisco - Helena is the most popular route from San Francisco Bay Area to Helena.

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to Helena (average of $44). Flying from San Francisco Bay Area to Helena in December is currently the most expensive (average of $254). 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 Bay Area to Helena

Discover the top 2 airlines that operate flights from San Francisco Bay Area 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$420FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$292Average$511FlexibilityNo cancel feeOn-time75%

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