HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Jose

$169+ Cheap flights from Helena to San Jose (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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SJC
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to San Jose with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 June 30, 2025.

Round-trip from

$280
(Alaska Airlines)

One-way from

$169
(Delta)
From Helena to San Jose
Search Deals
One-way flight from Helena to San Jose
Search Deals

Find flight deals from Helena to San Jose

Cheapest flights from Helena to San Jose
Explore the most affordable flight options available from Helena to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/29. 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 9/174:02 pmHLN - SJC
1 stop6h 03mAlaska Airlines
Sun 9/218:00 amSJC - HLN
1 stop6h 21mAlaska Airlines
Deal found 6/29$280

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 June 30, 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

Wed 9/17

4:02 pm-9:05 pm

1 stop6h 03m

San Jose

Sun 9/21

8:00 am-3:21 pm

1 stop6h 21m

$280

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Fri 7/25

5:50 am-8:55 am

1 stop4h 05m

$169

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Mon 7/21

4:09 pm-10:39 pm

2 stops31h 30m

$248

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Mon 7/21

5:39 pm-12:02 pm

3 stops19h 23m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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?

Currently, September is the cheapest month in which you can book a flight from Helena to San Jose (average of $255). Flying from Helena to San Jose in June is currently the most expensive (average of $358). 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 Jose

Get insights into the airlines that provide service to San Jose. 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 Jose. Reviews last updated June 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Helena to San Jose. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What is the cheapest airline to fly from Helena to San Jose round-trip?

    Our cheapest airline available from Helena to San Jose is Alaska Airlines. Our recent data shows that you can find tickets from as low as $280 on this airline.

  • What are the cheapest airlines to fly from Helena to San Jose one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $169. Alaska Airlines flights start at $248 while deals on United Airlines start at $585 one-way.

  • 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?

    Currently, September is the cheapest month in which you can book a flight from Helena to San Jose (average of $255). Flying from Helena to San Jose in June is currently the most expensive (average of $358). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to San Jose

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Los Angeles flights
Bozeman to San Francisco flights
Kalispell to Los Angeles flights
Kalispell to San Francisco flights
Bozeman to Las Vegas flights
Missoula to San Diego flights
Bozeman to San Diego flights
Billings to Los Angeles flights
Billings to Las Vegas flights
Billings to San Diego flights
Kalispell to Sacramento flights
Helena to San Diego flights
Kalispell to San Diego flights
Missoula to Los Angeles flights
Missoula to San Francisco flights
Missoula to Sacramento flights
Billings to Ontario flights
Bozeman to Ontario flights
Great Falls to Las Vegas flights
Kalispell to Las Vegas flights
Missoula to Las Vegas flights
Billings to Santa Ana flights
Billings to Reno flights
Helena to Los Angeles flights
Missoula to Reno flights
Bozeman to Long Beach flights
Missoula to Santa Ana flights
Great Falls to Sacramento flights
Billings to San Francisco flights
Missoula to Ontario flights
Kalispell to Ontario flights
Helena to Burbank flights
Billings to Sacramento flights
Bozeman to Medford flights
Missoula to San Jose flights
Kalispell to Reno flights
Helena to Las Vegas flights
Helena to Ontario flights
Bozeman to San Jose flights
Bozeman to Sacramento flights
Bozeman to Oakland flights
Kalispell to Palm Springs flights
Bozeman to Santa Ana flights
Billings to Medford flights
Bozeman to Burbank flights
Great Falls to Los Angeles flights
Butte to Los Angeles flights
Kalispell to Santa Ana flights
Billings to Long Beach flights
Billings to San Jose flights

Top airline flying from Helena to San Jose

Discover the top airline that operate flights from Helena to San Jose. 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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$418FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.