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$120+ Cheap flights from Helena to San Jose, CA (HLN - SJC)

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SJC
Jan 19 — Jan 261
Mon 1/19
Mon 1/26
1 adult, Economy
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Cheap flight deals from Helena to San Jose

Best flights from Helena to San Jose
Discover carefully curated flight deals from Helena to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/19. 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.
Sat 1/246:48 pmHLN - SJC
1 stop16h 00mAlaska Airlines
Tue 1/2711:00 amSJC - HLN
1 stop6h 11mAlaska Airlines
Deal found 12/19$260
This Alaska Airlines deal was found by Cheapflights users on 12/20. 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.
Sat 1/106:48 pmHLN - SJC
1 stop16h 00mAlaska Airlines
Tue 1/1311:00 amSJC - HLN
1 stop6h 11mAlaska Airlines
Deal found 12/20$290
This Alaska Airlines deal was found by Cheapflights users on 12/20. 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.
Sun 1/46:32 pmHLN - SJC
1 stop20h 20mAlaska Airlines
Thu 1/811:00 amSJC - HLN
1 stop6h 11mAlaska Airlines
Deal found 12/20$674

Find flight deals from Helena to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to San Jose (SJC). 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 December 20, 2025.

Round-trip from

$260
(Alaska Airlines)

One-way from

$120
(Delta)
From Helena to San Jose
Search Deals
One-way flight from Helena to San Jose
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Cheapflights Fare Finder

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

Fly from

Helena

Fly to

San Jose

Route

Depart

Return

Price

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/24

6:48 pm-9:48 am

1 stop16h 00m

San Jose

Tue 1/27

11:00 am-6:11 pm

1 stop6h 11m

$260

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/10

6:48 pm-9:48 am

1 stop16h 00m

San Jose

Tue 1/13

11:00 am-6:11 pm

1 stop6h 11m

$290

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sun 1/4

6:32 pm-1:52 pm

1 stop20h 20m

San Jose

Thu 1/8

11:00 am-6:11 pm

1 stop6h 11m

$674

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Tue 1/13

5:30 am-8:57 am

1 stop4h 27m

$120

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Mon 2/9

6:48 pm-2:42 pm

1 stop20h 54m

$167

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sun 4/26

5:30 am-8:42 am

1 stop4h 12m

$320

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Tue 1/13

6:48 pm-9:21 am

2 stops15h 33m

$386

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sun 4/26

4:10 pm-12:01 pm

2 stops20h 51m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Best time to book a flight from Helena to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose 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 Jose

What is the cheapest month to book a flight from Helena to San Jose, California?

Currently, July is the cheapest month in which you can book a flight from Helena to San Jose, California (average of $41). Flying from Helena to San Jose, California 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.

Related info for your journey

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

  • How long is the flight from Helena to San Jose, California?

    Alaska Airlines can get you from Helena to San Jose, California in just under 16h. Your travel time can differ by up to . The distance from Helena to San Jose, California is about 816 mi.

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

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

  • How can I find direct flights from Helena to San Jose?

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

  • Can I find deals for business class flights from Helena to San Jose?

    Yes. Cheapflights offers flight deals from Helena to San Jose 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 Jose, California?

    Currently, July is the cheapest month in which you can book a flight from Helena to San Jose, California (average of $41). Flying from Helena to San Jose, California 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.

See more FAQs

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