What airlines fly to San Jose, California?

Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Jose, California from Helena according to our data. Alaska Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to San Jose, California. Keep in mind that there are 6 different airlines that fly to San Jose, California on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Helena Airport to San Jose Airport?

Prices for flights from Helena Airport to San Jose Airport are updated daily.

How old do you have to be to fly from Helena Airport to San Jose Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Jose Airport.

What documentation or ID do you need to fly to San Jose Airport?

The travel and health documents you'll need for your trip to San Jose Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Jose Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$252 Cheap Flights from Helena to San Jose in 2025/26

1 adult

0 bags

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Find the cheapest flights from Helena to San Jose

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One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:48 pm - 9:48 am

HLN

SJC

16h 00m1 stop

11:00 am - 6:11 pm

SJC

HLN

6h 11m1 stop

$270Alaska Airlines

Sat, Jan 24 - Tue, Jan 27

6:48 pm - 9:48 am

HLN

SJC

16h 00m1 stop

7:52 pm - 6:11 pm

SJC

HLN

21h 19m2 stops

$308Alaska Airlines

Sat, Jan 24 - Tue, Jan 27

6:48 pm - 9:48 am

HLN

SJC

16h 00m1 stop

9:53 am - 6:11 pm

SJC

HLN

7h 18m2 stops

$318Alaska Airlines

Sat, Jan 24 - Tue, Jan 27

6:48 pm - 9:16 am

HLN

SJC

15h 28m2 stops

7:52 pm - 6:11 pm

SJC

HLN

21h 19m2 stops

$350Alaska Airlines

Sat, Jan 24 - Tue, Jan 27

6:48 pm - 9:16 am

HLN

SJC

15h 28m2 stops

7:45 am - 6:11 pm

SJC

HLN

9h 26m2 stops

$370Alaska Airlines

Sat, Jan 24 - Tue, Jan 27

4:10 pm - 4:45 pm

HLN

SJC

25h 35m1 stop

8:10 am - 3:38 pm

SJC

HLN

6h 28m1 stop

$466Alaska Airlines

Fri, Mar 27 - Sun, Mar 29

4:10 pm - 4:45 pm

HLN

SJC

25h 35m1 stop

7:28 pm - 3:38 pm

SJC

HLN

19h 10m2 stops

$529Alaska Airlines

Fri, Mar 27 - Sun, Mar 29

2:26 pm - 9:16 pm

HLN

SJC

7h 50m1 stop

2:29 pm - 9:31 pm

SJC

HLN

6h 02m1 stop

$580United Airlines

Wed, Dec 31 - Sun, Jan 4

6:32 pm - 8:58 am

HLN

SJC

15h 26m2 stops

5:57 pm - 5:55 pm

SJC

HLN

22h 58m1 stop

$721Alaska Airlines

Sat, Jan 3 - Mon, Jan 5

6:32 pm - 8:58 am

HLN

SJC

15h 26m2 stops

8:00 pm - 5:55 pm

SJC

HLN

20h 55m2 stops

$733Alaska Airlines

Sat, Jan 3 - Mon, Jan 5

Alaska Airlines flights from Helena to San Jose, California

Our best Alaska Airlines deals on Helena to San Jose, California flight tickets

Alaska Airlines

Jan 24

HLN6:48 pmHelena

16h 00m

1 stop

SJC9:48 amSan Jose

Jan 27

SJC11:00 amSan Jose

6h 11m

1 stop

HLN6:11 pmHelena

$270

Find similar

Alaska Airlines

Jan 24

HLN6:48 pmHelena

16h 00m

1 stop

SJC9:48 amSan Jose

Jan 27

SJC7:52 pmSan Jose

21h 19m

2 stops

HLN6:11 pmHelena

$308

Find similar

Alaska Airlines

Jan 24

HLN6:48 pmHelena

16h 00m

1 stop

SJC9:48 amSan Jose

Jan 27

SJC9:53 amSan Jose

7h 18m

2 stops

HLN6:11 pmHelena

$318

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Helena to San Jose, California that are best for you.

Fly from

Fly to

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

$270

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/24

6:48 pm-9:48 am

1 stop16h 00m

San Jose

Tue 1/27

7:52 pm-6:11 pm

2 stops21h 19m

$308

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/24

6:48 pm-9:48 am

1 stop16h 00m

San Jose

Tue 1/27

9:53 am-6:11 pm

2 stops7h 18m

$318

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/24

6:48 pm-9:16 am

2 stops15h 28m

San Jose

Tue 1/27

7:52 pm-6:11 pm

2 stops21h 19m

$350

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/24

6:48 pm-9:16 am

2 stops15h 28m

San Jose

Tue 1/27

7:45 am-6:11 pm

2 stops9h 26m

$370

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Fri 3/27

4:10 pm-4:45 pm

1 stop25h 35m

San Jose

Sun 3/29

8:10 am-3:38 pm

1 stop6h 28m

$466

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Fri 3/27

4:10 pm-4:45 pm

1 stop25h 35m

San Jose

Sun 3/29

7:28 pm-3:38 pm

2 stops19h 10m

$529

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Wed 12/31

2:26 pm-9:16 pm

1 stop7h 50m

San Jose

Sun 1/4

2:29 pm-9:31 pm

1 stop6h 02m

$580

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/3

6:32 pm-8:58 am

2 stops15h 26m

San Jose

Mon 1/5

5:57 pm-5:55 pm

1 stop22h 58m

$721

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 1/3

6:32 pm-8:58 am

2 stops15h 26m

San Jose

Mon 1/5

8:00 pm-5:55 pm

2 stops20h 55m

$733

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Helena to San Jose, California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to San Jose, California?

On average, the least expensive day to fly to San Jose, California from Helena is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $264. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Helena to San Jose, California for around $614.

What is the cheapest time of day to depart on your flight to San Jose, California?

The cheapest time of day to fly to San Jose, California is in the morning when flights can be purchased for as low as $467. At noon is when there is more demand to fly to San Jose, California, so prices are often more expensive at around $488 per ticket.

When to book flights from Helena to San Jose, California

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to San Jose, California according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Helena to San Jose, California (HLN to SJC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to San Jose, California

Fastest flight time	7h 46m
Direct flights	None

The fastest flight from Helena to San Jose, California takes 7h 46m

There are no direct flights from Helena to San Jose, California. There are no popular flight routes from Helena to San Jose, California.

Search flight deals

How far is Helena to San Jose by plane?
The straight-line distance from Helena to San Jose is 813.6 mi. A reasonable flight in good conditions will take 7h 46m.
When did momondo last update prices for flights from Helena Airport to San Jose Airport?
Prices for flights from Helena Airport to San Jose Airport are updated daily.
How old do you have to be to fly from Helena Airport to San Jose Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Jose Airport.
What documentation or ID do you need to fly to San Jose Airport?
The travel and health documents you'll need for your trip to San Jose Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Jose Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Helena to San Jose?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Helena to San Jose. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Helena to San Jose with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Jose from Helena with this policy.

How can momondo help me find flights from Helena to San Jose?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Jose from Helena.

I’m not ready to book a flight from Helena to San Jose right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Helena to San Jose flights. All you need is a valid email address and we will do the rest; it is that quick and easy.