What airlines fly to San Jose, California?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to San Jose, California from Helena according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to San Jose, California. Keep in mind that there are 4 different airlines that fly to San Jose, California on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Helena to San Jose?

Alaska Airlines and Delta are the most popular carriers operating from Helena to San Jose

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.

$244 Cheap Flights from Helena to San Jose, California in 2026/27

Find the cheapest flights from Helena to San Jose

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:41 pm - 9:43 amHLN Helena-SJC San Jose

18h 02m1 stop Seattle/Tacoma Intl

7:43 pm - 4:04 pmSJC San Jose-HLN Helena

19h 21m1 stop Seattle/Tacoma Intl

$308Alaska Airlines

Fri, Nov 6 - Tue, Nov 10

4:41 pm - 10:31 pmHLN Helena-SJC San Jose

30h 50m2 stops Seattle/Tacoma Intl San Diego

8:03 am - 4:04 pmSJC San Jose-HLN Helena

7h 01m1 stop Seattle/Tacoma Intl

$356Alaska Airlines

Fri, Nov 6 - Tue, Nov 10

5:26 pm - 6:01 pmHLN Helena-SJC San Jose

25h 35m1 stop Seattle/Tacoma Intl

6:17 am - 4:49 pmSJC San Jose-HLN Helena

9h 32m1 stop Seattle/Tacoma Intl

$383Alaska Airlines

Thu, Oct 22 - Sun, Oct 25

5:26 pm - 8:00 pmHLN Helena-SJC San Jose

27h 34m1 stop Seattle/Tacoma Intl

6:17 am - 4:49 pmSJC San Jose-HLN Helena

9h 32m1 stop Seattle/Tacoma Intl

$408Alaska Airlines

Fri, Oct 23 - Sun, Oct 25

4:41 pm - 9:43 amHLN Helena-SJC San Jose

18h 02m1 stop Seattle/Tacoma Intl

7:43 pm - 4:04 pmSJC San Jose-HLN Helena

19h 21m1 stop Seattle/Tacoma Intl

$427Alaska Airlines

Fri, Nov 6 - Tue, Nov 10

5:26 pm - 5:41 pmHLN Helena-SJC San Jose

25h 15m2 stops Seattle/Tacoma Intl San Diego

6:17 am - 4:49 pmSJC San Jose-HLN Helena

9h 32m1 stop Seattle/Tacoma Intl

$441Alaska Airlines

Thu, Oct 22 - Sun, Oct 25

5:26 pm - 11:20 amHLN Helena-SJC San Jose

18h 54m2 stops Seattle/Tacoma Intl San Diego

6:17 am - 4:49 pmSJC San Jose-HLN Helena

9h 32m1 stop Seattle/Tacoma Intl

$456Alaska Airlines

Fri, Oct 23 - Sun, Oct 25

4:41 pm - 7:36 pmHLN Helena-SJC San Jose

27h 55m2 stops Seattle/Tacoma Intl San Diego

7:43 pm - 4:04 pmSJC San Jose-HLN Helena

19h 21m1 stop Seattle/Tacoma Intl

$475Alaska Airlines

Fri, Nov 6 - Tue, Nov 10

2:30 pm - 9:11 pmHLN Helena-SJC San Jose

7h 41m1 stop Denver Intl

1:04 pm - 8:59 pmSJC San Jose-HLN Helena

6h 55m1 stop Denver Intl

$486United Airlines

Sat, Jan 16 - Wed, Jan 20

4:41 pm - 8:44 pmHLN Helena-SJC San Jose

5h 03m1 stop Seattle/Tacoma Intl

8:03 am - 4:04 pmSJC San Jose-HLN Helena

7h 01m1 stop Seattle/Tacoma Intl

$486Alaska Airlines

Fri, Nov 6 - Tue, Nov 10

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Delta flights from Helena to San Jose, California

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

Delta

Oct 16

HLN1:08 pmHelena

4h 12m

1 stop

SJC4:20 pmSan Jose

Oct 19

SJC5:10 pmSan Jose

4h 14m

1 stop

HLN10:24 pmHelena

$487

Delta

Jan 16

HLN12:50 pmHelena

10h 21m

2 stops

SJC10:11 pmSan Jose

Jan 20

SJC5:00 pmSan Jose

4h 41m

1 stop

HLN10:41 pmHelena

$491

Delta

Oct 16

HLN1:08 pmHelena

10h 52m

2 stops

SJC11:00 pmSan Jose

Oct 19

SJC6:00 amSan Jose

5h 28m

1 stop

HLN12:28 pmHelena

$492

Alaska Airlines flights from Helena to San Jose, California

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

Alaska Airlines

Nov 6

HLN4:41 pmHelena

18h 02m

1 stop

SJC9:43 amSan Jose

Nov 10

SJC7:43 pmSan Jose

19h 21m

1 stop

HLN4:04 pmHelena

$427

Alaska Airlines

Nov 6

HLN4:41 pmHelena

30h 50m

2 stops

SJC10:31 pmSan Jose

Nov 10

SJC8:03 amSan Jose

7h 01m

1 stop

HLN4:04 pmHelena

$473

Alaska Airlines

Nov 6

HLN4:41 pmHelena

27h 55m

2 stops

SJC7:36 pmSan Jose

Nov 10

SJC7:43 pmSan Jose

19h 21m

1 stop

HLN4:04 pmHelena

$475

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

Cheapest round-trip

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 11/6

4:41 pm-9:43 am

1 stop18h 02m

San Jose

Tue 11/10

7:43 pm-4:04 pm

1 stop19h 21m

$308

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 11/6

4:41 pm-10:31 pm

2 stops30h 50m

San Jose

Tue 11/10

8:03 am-4:04 pm

1 stop7h 01m

$356

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Thu 10/22

5:26 pm-6:01 pm

1 stop25h 35m

San Jose

Sun 10/25

6:17 am-4:49 pm

1 stop9h 32m

$383

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 10/23

5:26 pm-8:00 pm

1 stop27h 34m

San Jose

Sun 10/25

6:17 am-4:49 pm

1 stop9h 32m

$408

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 11/6

4:41 pm-9:43 am

1 stop18h 02m

San Jose

Tue 11/10

7:43 pm-4:04 pm

1 stop19h 21m

$427

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Thu 10/22

5:26 pm-5:41 pm

2 stops25h 15m

San Jose

Sun 10/25

6:17 am-4:49 pm

1 stop9h 32m

$441

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 10/23

5:26 pm-11:20 am

2 stops18h 54m

San Jose

Sun 10/25

6:17 am-4:49 pm

1 stop9h 32m

$456

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 11/6

4:41 pm-7:36 pm

2 stops27h 55m

San Jose

Tue 11/10

7:43 pm-4:04 pm

1 stop19h 21m

$475

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Sat 1/16

2:30 pm-9:11 pm

1 stop7h 41m

San Jose

Wed 1/20

1:04 pm-8:59 pm

1 stop6h 55m

$486

Quickest round-trip

HelenaSan Jose

HLN Helena - SJC San Jose

HLNSJC

Helena

Fri 11/6

4:41 pm-8:44 pm

1 stop5h 03m

San Jose

Tue 11/10

8:03 am-4:04 pm

1 stop7h 01m

$486

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted 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

Can stopping save me money on Helena to San Jose, California flights?

You could potentially save up to 65% on your flight if you consider stops on a Helena to San Jose, California flight.

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

Best Price Found	$244
Fastest flight time	4h 12m
Direct flights	None

The best one-way flight to San Jose, California from Helena in the past 72 hours is $244. The best round-trip flight deal from Helena to San Jose, California found on momondo in the last 72 hours is $308.

The fastest flight from Helena to San Jose, California takes 4h 12m

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

Frequently asked questions about flying from Helena to San Jose, California

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 4h 12m.
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.

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Cheap flights from Helena to San Jose from $244

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to San Jose departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Helena to San Jose, California

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

Alaska Airlines flights from Helena to San Jose, California

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

momondo Fare Finder

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

See travel insights to San Jose from

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

Can stopping save me money on Helena to San Jose, California flights?

What is the cheapest airline that flies from Helena to San Jose?

What airlines fly to San Jose, California?

When to book flights from Helena to San Jose, California

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Helena to San Jose, California

Why use momondo?

An easier way to manage your San Jose, California trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to San Jose

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to San Jose

List of cabin classes available on flights landing in San Jose. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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