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.

$299 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.

5:45 am - 12:23 pmSJC-HLN

5h 38m1 stop

5:45 am - 8:57 amHLN-SJC

4h 12m1 stop

$299Delta

Find Deal

Thu, Apr 23 - Sun, Apr 26

6:18 am - 5:51 pmSJC-HLN

10h 33m1 stop

6:32 pm - 11:59 pmHLN-SJC

6h 27m1 stop

$540Alaska Airlines

Find Deal

Thu, Dec 11 - Sat, Jan 3

8:10 am - 5:36 pmSJC-HLN

8h 26m1 stop

6:13 pm - 6:53 pmHLN-SJC

25h 40m1 stop

$541Alaska Airlines

Find Deal

Sat, Nov 15 - Wed, Nov 19

7:50 pm - 5:51 pmSJC-HLN

21h 01m1 stop

6:32 pm - 8:22 amHLN-SJC

14h 50m2 stops

$545Alaska Airlines

Find Deal

Thu, Dec 11 - Sat, Jan 3

5:45 am - 12:26 pmSJC-HLN

5h 41m1 stop

1:06 pm - 6:24 pmHLN-SJC

6h 18m1 stop

$559Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

7:40 am - 5:51 pmSJC-HLN

9h 11m2 stops

6:32 pm - 8:22 amHLN-SJC

14h 50m2 stops

$564Alaska Airlines

Find Deal

Thu, Dec 11 - Sat, Jan 3

7:50 pm - 5:51 pmSJC-HLN

21h 01m1 stop

6:32 pm - 11:59 pmHLN-SJC

6h 27m1 stop

$570Alaska Airlines

Find Deal

Thu, Dec 11 - Sat, Jan 3

8:10 am - 5:36 pmSJC-HLN

8h 26m1 stop

6:13 pm - 8:55 amHLN-SJC

15h 42m2 stops

$576Alaska Airlines

Find Deal

Sat, Nov 15 - Wed, Nov 19

10:05 am - 3:38 pmSJC-HLN

4h 33m1 stop

4:10 pm - 10:59 pmHLN-SJC

7h 49m2 stops

$591Alaska Airlines

Find Deal

Thu, Apr 23 - Sun, Apr 26

5:45 am - 12:26 pmSJC-HLN

5h 41m1 stop

5:30 am - 3:55 pmHLN-SJC

11h 25m2 stops

$640Delta

Find Deal

Fri, Nov 14 - Tue, Nov 18

Delta flights from San Jose, California to Helena

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

Delta

Apr 23

SJC5:45 amSan Jose

5h 38m

1 stop

HLN12:23 pmHelena

Apr 26

HLN5:45 amHelena

4h 12m

1 stop

SJC8:57 amSan Jose

$299

Find similar

Delta

Nov 14

SJC5:45 amSan Jose

5h 41m

1 stop

HLN12:26 pmHelena

Nov 19

HLN5:30 amHelena

4h 30m

1 stop

SJC9:00 amSan Jose

$559

Find similar

Delta

Nov 14

SJC5:45 amSan Jose

5h 41m

1 stop

HLN12:26 pmHelena

Nov 18

HLN5:30 amHelena

11h 25m

2 stops

SJC3:55 pmSan Jose

$640

Find similar

Alaska Airlines flights from San Jose, California to Helena

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

Alaska Airlines

Dec 11

SJC6:18 amSan Jose

10h 33m

1 stop

HLN5:51 pmHelena

Jan 3

HLN6:32 pmHelena

6h 27m

1 stop

SJC11:59 pmSan Jose

$540

Find similar

Alaska Airlines

Nov 15

SJC8:10 amSan Jose

8h 26m

1 stop

HLN5:36 pmHelena

Nov 19

HLN6:13 pmHelena

25h 40m

1 stop

SJC6:53 pmSan Jose

$541

Find similar

Alaska Airlines

Dec 11

SJC7:50 pmSan Jose

21h 01m

1 stop

HLN5:51 pmHelena

Jan 3

HLN6:32 pmHelena

14h 50m

2 stops

SJC8:22 amSan Jose

$545

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 4/23

5:45 am-12:23 pm

1 stop5h 38m

Helena

Sun 4/26

5:45 am-8:57 am

1 stop4h 12m

$299

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

6:18 am-5:51 pm

1 stop10h 33m

Helena

Sat 1/3

6:32 pm-11:59 pm

1 stop6h 27m

$540

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 11/15

8:10 am-5:36 pm

1 stop8h 26m

Helena

Wed 11/19

6:13 pm-6:53 pm

1 stop25h 40m

$541

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

7:50 pm-5:51 pm

1 stop21h 01m

Helena

Sat 1/3

6:32 pm-8:22 am

2 stops14h 50m

$545

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Fri 11/14

5:45 am-12:26 pm

1 stop5h 41m

Helena

Tue 11/18

1:06 pm-6:24 pm

1 stop6h 18m

$559

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

7:40 am-5:51 pm

2 stops9h 11m

Helena

Sat 1/3

6:32 pm-8:22 am

2 stops14h 50m

$564

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

7:50 pm-5:51 pm

1 stop21h 01m

Helena

Sat 1/3

6:32 pm-11:59 pm

1 stop6h 27m

$570

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 11/15

8:10 am-5:36 pm

1 stop8h 26m

Helena

Wed 11/19

6:13 pm-8:55 am

2 stops15h 42m

$576

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 4/23

10:05 am-3:38 pm

1 stop4h 33m

Helena

Sun 4/26

4:10 pm-10:59 pm

2 stops7h 49m

$591

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Fri 11/14

5:45 am-12:26 pm

1 stop5h 41m

Helena

Tue 11/18

5:30 am-3:55 pm

2 stops11h 25m

$640

Flights are sorted by cheapest round-trip flights first.

Sorted 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 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 46% 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

Direct flights	None

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 33m 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.