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

Prices for flights from San Jose Airport to Helena Airport refresh daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Jose Airport to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The travel and health documents you'll need for your trip to Helena 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 Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$119 Cheap Flights from San Jose to Helena in 2025/26

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Find the cheapest flights from San Jose, California to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:19 pm

SJC

HLN

5h 19m1 stop

5:30 am - 8:48 am

HLN

SJC

4h 18m1 stop

$289Delta

Thu, Apr 2 - Sun, Apr 5

11:00 am - 6:11 pm

SJC

HLN

6h 11m1 stop

6:48 pm - 9:22 am

HLN

SJC

15h 34m1 stop

$335Alaska Airlines

Tue, Feb 10 - Wed, Feb 11

5:00 pm - 10:34 pm

SJC

HLN

4h 34m1 stop

12:50 pm - 4:16 pm

HLN

SJC

4h 26m1 stop

$344Delta

Wed, Jun 10 - Fri, Jun 19

11:00 am - 6:11 pm

SJC

HLN

6h 11m1 stop

6:48 pm - 10:28 am

HLN

SJC

16h 40m1 stop

$345Alaska Airlines

Tue, Feb 10 - Wed, Feb 11

11:00 am - 6:11 pm

SJC

HLN

6h 11m1 stop

6:48 pm - 10:54 am

HLN

SJC

17h 06m2 stops

$386Alaska Airlines

Tue, Feb 10 - Wed, Feb 11

11:00 am - 6:11 pm

SJC

HLN

6h 11m1 stop

6:48 pm - 10:54 am

HLN

SJC

17h 06m2 stops

$391Alaska Airlines

Tue, Feb 10 - Wed, Feb 11

11:30 am - 12:23 pm

SJC

HLN

23h 53m2 stops

12:50 pm - 4:16 pm

HLN

SJC

4h 26m1 stop

$397Delta

Tue, Jun 9 - Fri, Jun 19

5:45 am - 12:23 pm

SJC

HLN

5h 38m1 stop

5:45 am - 9:34 pm

HLN

SJC

16h 49m1 stop

$418Delta

Tue, Jun 9 - Sat, Jun 20

5:45 am - 12:23 pm

SJC

HLN

5h 38m1 stop

5:45 am - 4:15 pm

HLN

SJC

11h 30m2 stops

$422Delta

Tue, Jun 9 - Sat, Jun 20

10:03 am - 3:31 pm

SJC

HLN

4h 28m1 stop

4:08 pm - 8:53 pm

HLN

SJC

5h 45m1 stop

$432Alaska Airlines

Wed, Jun 10 - Fri, Jun 19

Alaska Airlines flights from San Jose, California to Helena

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

Alaska Airlines

Feb 10

SJC11:00 amSan Jose

6h 11m

1 stop

HLN6:11 pmHelena

Feb 11

HLN6:48 pmHelena

15h 34m

1 stop

SJC9:22 amSan Jose

$335

Find similar

Alaska Airlines

Feb 10

SJC11:00 amSan Jose

6h 11m

1 stop

HLN6:11 pmHelena

Feb 11

HLN6:48 pmHelena

16h 40m

1 stop

SJC10:28 amSan Jose

$345

Find similar

Alaska Airlines

Feb 10

SJC11:00 amSan Jose

6h 11m

1 stop

HLN6:11 pmHelena

Feb 11

HLN6:48 pmHelena

17h 06m

2 stops

SJC10:54 amSan Jose

$386

Find similar

Delta flights from San Jose, California to Helena

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

Delta

Apr 2

SJC6:00 amSan Jose

5h 19m

1 stop

HLN12:19 pmHelena

Apr 5

HLN5:30 amHelena

4h 18m

1 stop

SJC8:48 amSan Jose

$289

Find similar

Delta

Jun 10

SJC5:00 pmSan Jose

4h 34m

1 stop

HLN10:34 pmHelena

Jun 19

HLN12:50 pmHelena

4h 26m

1 stop

SJC4:16 pmSan Jose

$344

Find similar

Delta

Jun 9

SJC11:30 amSan Jose

23h 53m

2 stops

HLN12:23 pmHelena

Jun 19

HLN12:50 pmHelena

4h 26m

1 stop

SJC4:16 pmSan Jose

$397

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 4/2

6:00 am-12:19 pm

1 stop5h 19m

Helena

Sun 4/5

5:30 am-8:48 am

1 stop4h 18m

$289

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 2/10

11:00 am-6:11 pm

1 stop6h 11m

Helena

Wed 2/11

6:48 pm-9:22 am

1 stop15h 34m

$335

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 6/10

5:00 pm-10:34 pm

1 stop4h 34m

Helena

Fri 6/19

12:50 pm-4:16 pm

1 stop4h 26m

$344

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 2/10

11:00 am-6:11 pm

1 stop6h 11m

Helena

Wed 2/11

6:48 pm-10:28 am

1 stop16h 40m

$345

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 2/10

11:00 am-6:11 pm

1 stop6h 11m

Helena

Wed 2/11

6:48 pm-10:54 am

2 stops17h 06m

$386

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 2/10

11:00 am-6:11 pm

1 stop6h 11m

Helena

Wed 2/11

6:48 pm-10:54 am

2 stops17h 06m

$391

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 6/9

11:30 am-12:23 pm

2 stops23h 53m

Helena

Fri 6/19

12:50 pm-4:16 pm

1 stop4h 26m

$397

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 6/9

5:45 am-12:23 pm

1 stop5h 38m

Helena

Sat 6/20

5:45 am-9:34 pm

1 stop16h 49m

$418

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 6/9

5:45 am-12:23 pm

1 stop5h 38m

Helena

Sat 6/20

5:45 am-4:15 pm

2 stops11h 30m

$422

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 6/10

10:03 am-3:31 pm

1 stop4h 28m

Helena

Fri 6/19

4:08 pm-8:53 pm

1 stop5h 45m

$432

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

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

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

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

What airlines fly to Helena?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Helena from San Jose, California according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 7 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from San Jose, California to Helena

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

Estimated round-trip price

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

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

Fastest flight time	4h 05m
Direct flights	None

The fastest flight from San Jose, California to Helena takes 4h 05m

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

Search flight deals

How far is San Jose to Helena by plane?
The distance between San Jose and Helena is about 813.6 mi. 4h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from San Jose Airport to Helena Airport?
Prices for flights from San Jose Airport to Helena Airport refresh daily.
How old do you have to be to fly from San Jose Airport to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Jose Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents you'll need for your trip to Helena 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 Helena 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 San Jose to Helena?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Helena from San Jose.

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

Yes. All flights to Helena from San Jose on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Jose to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Helena from San Jose. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.