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Helena

$358+ Cheap flights from San Jose, CA to Helena (SJC - HLN)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — HLN
nov 15 — nov 221
sáb 11/15
sáb 11/22
1 adult, Economy
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Cheap flight deals from San Jose to Helena

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Helena (HLN). 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 outubro 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(Delta)
Provider with most accurate pricing for San Jose-Helena flight deals.
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Provider most trusted by Cheapflights users for San Jose-Helena flights.
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From San Jose to Helena
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Find flight deals from San Jose to Helena

Cheapest flights from San Jose to Helena
Explore the most affordable flight options available from San Jose to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on outubro 16, 2025.

This Delta deal was found by Cheapflights users on 10/15. 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.
sex 11/145:45 amSJC - HLN
1 stop5h 41mDelta
sex 11/215:30 amHLN - SJC
1 stop4h 30mDelta
Deal found 10/15$358
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/147:00 amSJC - HLN
2 stops9h 36mAlaska Airlines
sex 11/217:32 pmHLN - SJC
1 stop5h 26mAlaska Airlines
Deal found 10/15$441
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/113:49 pmSJC - HLN
1 stop25h 02mAlaska Airlines
sáb 1/36:32 pmHLN - SJC
1 stop6h 27mAlaska Airlines
Deal found 10/15$473
This Delta deal was found by Cheapflights users on 10/15. 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.
qua 10/295:55 amSJC - HLN
1 stop5h 25mDelta
sex 10/315:45 amHLN - SJC
1 stop4h 19mDelta
Deal found 10/15$539
This Delta deal was found by Cheapflights users on 10/15. 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.
qua 10/295:55 amSJC - HLN
1 stop5h 25mDelta
qui 10/305:45 amHLN - SJC
2 stops8h 17mDelta
Deal found 10/15$619
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/2911:51 amSJC - HLN
1 stop4h 45mAlaska Airlines
sex 10/316:13 pmHLN - SJC
2 stops21h 10mAlaska Airlines
Deal found 10/15$644
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 10/2711:51 amSJC - HLN
1 stop4h 45mAlaska Airlines
qui 10/306:13 pmHLN - SJC
1 stop5h 46mAlaska Airlines
Deal found 10/15$675
This United Airlines deal was found by Cheapflights users on 10/15. 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.
seg 10/2712:30 pmSJC - HLN
1 stop7h 52mUnited Airlines
qua 10/292:22 pmHLN - SJC
1 stop7h 31mUnited Airlines
Deal found 10/15$690
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 10/287:17 pmSJC - HLN
2 stops21h 19mAlaska Airlines
qui 10/306:13 pmHLN - SJC
1 stop5h 46mAlaska Airlines
Deal found 10/15$716

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 outubro 16, 2025.
Use the filters below to find and compare flights from San Jose to Helena that are best for you.

Fly from

San Jose

Fly to

Helena

Route

Depart

Return

Price

San JoseHelena

SJC - HLN

SJCHLN

San Jose

sex 11/14

5:45 am-12:26 pm

1 stop5h 41m

Helena

sex 11/21

5:30 am-9:00 am

1 stop4h 30m

$358

San JoseHelena

SJC - HLN

SJCHLN

San Jose

sex 11/14

7:00 am-5:36 pm

2 stops9h 36m

Helena

sex 11/21

7:32 pm-11:58 pm

1 stop5h 26m

$441

San JoseHelena

SJC - HLN

SJCHLN

San Jose

qui 12/11

3:49 pm-5:51 pm

1 stop25h 02m

Helena

sáb 1/3

6:32 pm-11:59 pm

1 stop6h 27m

$473

San JoseHelena

SJC - HLN

SJCHLN

San Jose

qua 10/29

5:55 am-12:20 pm

1 stop5h 25m

Helena

qui 10/30

5:45 am-9:04 am

1 stop4h 19m

$539

San JoseHelena

SJC - HLN

SJCHLN

San Jose

qua 10/29

5:55 am-12:20 pm

1 stop5h 25m

Helena

sex 10/31

5:45 am-9:04 am

1 stop4h 19m

$539

San JoseHelena

SJC - HLN

SJCHLN

San Jose

qua 10/29

11:51 am-5:36 pm

1 stop4h 45m

Helena

sex 10/31

6:13 pm-2:23 pm

2 stops21h 10m

$644

San JoseHelena

SJC - HLN

SJCHLN

San Jose

ter 10/28

11:51 am-5:36 pm

1 stop4h 45m

Helena

qui 10/30

6:13 pm-10:59 pm

1 stop5h 46m

$675

San JoseHelena

SJC - HLN

SJCHLN

San Jose

seg 10/27

11:51 am-5:36 pm

1 stop4h 45m

Helena

qui 10/30

6:13 pm-10:59 pm

1 stop5h 46m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Compare providers for flights from San Jose to Helena

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Jose to Helena in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Jose, California-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Jose, California-Helena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Jose, California-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Jose to Helena

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

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

Currently, August is the cheapest month in which you can book a flight from San Jose, California to Helena (average of $44). Flying from San Jose, California 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.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Helena. 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 San Jose, California to Helena?

    Delta and Alaska Airlines can get you from San Jose, California to Helena in just under 5h 41m. Your travel time can differ by up to 3h 55m. The distance between San Jose, California and Helena is about 816 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Jose, California to Helena (average of $44). Flying from San Jose, California 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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