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.

$136 Cheap Flights from San Jose to Helena in 2025/26

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Find the cheapest flights from San Jose to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

5:45 am - 12:27 pmSJC-HLN

5h 42m1 stop

5:35 am - 9:12 amHLN-SJC

4h 37m1 stop

$315Delta

Find Deal

Wed, Mar 4 - Fri, Mar 13

7:15 am - 10:38 pmSJC-HLN

14h 23m2 stops

5:35 am - 9:12 amHLN-SJC

4h 37m1 stop

$325Delta

Find Deal

Wed, Mar 4 - Fri, Mar 13

5:45 am - 12:27 pmSJC-HLN

5h 42m1 stop

5:35 am - 9:12 amHLN-SJC

4h 37m1 stop

$346Delta

Find Deal

Wed, Mar 4 - Sun, Mar 15

7:15 am - 10:38 pmSJC-HLN

14h 23m2 stops

5:35 am - 9:12 amHLN-SJC

4h 37m1 stop

$356Delta

Find Deal

Wed, Mar 4 - Sun, Mar 15

5:45 am - 12:27 pmSJC-HLN

5h 42m1 stop

5:35 am - 9:12 amHLN-SJC

4h 37m1 stop

$357Delta

Find Deal

Sat, Mar 7 - Fri, Mar 13

5:45 am - 12:26 pmSJC-HLN

5h 41m1 stop

5:30 am - 9:10 amHLN-SJC

4h 40m1 stop

$365Delta

Find Deal

Thu, Dec 11 - Sun, Dec 14

7:00 am - 5:51 pmSJC-HLN

9h 51m2 stops

6:28 pm - 10:59 pmHLN-SJC

5h 31m1 stop

$424Alaska Airlines

Find Deal

Thu, Dec 11 - Sun, Dec 14

5:00 pm - 3:43 pmSJC-HLN

21h 43m1 stop

4:10 pm - 10:03 pmHLN-SJC

6h 53m1 stop

$451Alaska Airlines

Find Deal

Fri, Mar 6 - Mon, Mar 16

12:30 pm - 9:00 pmSJC-HLN

7h 30m1 stop

6:30 am - 1:40 pmHLN-SJC

8h 10m1 stop

$573United Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

7:01 pm - 6:52 pmSJC-HLN

22h 51m1 stop

7:32 pm - 11:58 pmHLN-SJC

5h 26m1 stop

$669Alaska Airlines

Find Deal

Sat, Nov 22 - Sat, Nov 29

Alaska Airlines flights from San Jose to Helena

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

Alaska Airlines

Dec 11

SJC7:00 amSan Jose

9h 51m

2 stops

HLN5:51 pmHelena

Dec 14

HLN6:28 pmHelena

5h 31m

1 stop

SJC10:59 pmSan Jose

$424

Find similar

Alaska Airlines

Mar 6

SJC5:00 pmSan Jose

21h 43m

1 stop

HLN3:43 pmHelena

Mar 16

HLN4:10 pmHelena

6h 53m

1 stop

SJC10:03 pmSan Jose

$451

Find similar

Alaska Airlines

Nov 22

SJC7:01 pmSan Jose

22h 51m

1 stop

HLN6:52 pmHelena

Nov 29

HLN7:32 pmHelena

5h 26m

1 stop

SJC11:58 pmSan Jose

$669

Find similar

United Airlines flights from San Jose to Helena

Our best United Airlines deals on San Jose to Helena flight tickets

United Airlines

Sep 29

SJC12:30 pmSan Jose

7h 30m

1 stop

HLN9:00 pmHelena

Oct 3

HLN6:30 amHelena

8h 10m

1 stop

SJC1:40 pmSan Jose

$573

Find similar

United Airlines

Sep 22

SJC8:45 amSan Jose

6h 19m

1 stop

HLN4:04 pmHelena

Sep 29

HLN2:44 pmHelena

7h 09m

1 stop

SJC8:53 pmSan Jose

$734

Find similar

United Airlines

Sep 22

SJC8:45 amSan Jose

6h 19m

1 stop

HLN4:04 pmHelena

Sep 28

HLN2:44 pmHelena

20h 08m

1 stop

SJC9:52 amSan Jose

$806

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 3/4

5:45 am-12:27 pm

1 stop5h 42m

Helena

Fri 3/13

5:35 am-9:12 am

1 stop4h 37m

$315

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 3/4

7:15 am-10:38 pm

2 stops14h 23m

Helena

Fri 3/13

5:35 am-9:12 am

1 stop4h 37m

$325

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 3/4

5:45 am-12:27 pm

1 stop5h 42m

Helena

Sun 3/15

5:35 am-9:12 am

1 stop4h 37m

$346

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 3/4

7:15 am-10:38 pm

2 stops14h 23m

Helena

Sun 3/15

5:35 am-9:12 am

1 stop4h 37m

$356

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 3/7

5:45 am-12:27 pm

1 stop5h 42m

Helena

Fri 3/13

5:35 am-9:12 am

1 stop4h 37m

$357

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

5:45 am-12:26 pm

1 stop5h 41m

Helena

Sun 12/14

5:30 am-9:10 am

1 stop4h 40m

$365

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Thu 12/11

7:00 am-5:51 pm

2 stops9h 51m

Helena

Sun 12/14

6:28 pm-10:59 pm

1 stop5h 31m

$424

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Fri 3/6

5:00 pm-3:43 pm

1 stop21h 43m

Helena

Mon 3/16

4:10 pm-10:03 pm

1 stop6h 53m

$451

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Mon 9/29

12:30 pm-9:00 pm

1 stop7h 30m

Helena

Fri 10/3

6:30 am-1:40 pm

1 stop8h 10m

$573

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 11/22

7:01 pm-6:52 pm

1 stop22h 51m

Helena

Sat 11/29

7:32 pm-11:58 pm

1 stop5h 26m

$669

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 San Jose 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 United Airlines 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 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 to Helena

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

Estimated round-trip price

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

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

Direct flights	None

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

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How far is San Jose to Helena by plane?
The distance between San Jose and Helena is about 813.6 mi. 5h 41m 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.