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.

$197 Cheap Flights from San Jose to Helena in 2026

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Find the cheapest flights from San Jose, California to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:33 pm - 9:46 pm

SJC

HLN

6h 13m

1 stop

6:15 am - 1:28 pm

HLN

SJC

8h 13m

1 stop

$287United Airlines

Sat, May 2 - Wed, May 6

8:00 am - 4:06 pm

SJC

HLN

7h 06m

1 stop

4:43 pm - 11:26 pm

HLN

SJC

7h 43m

1 stop

$314Alaska Airlines

Sun, May 31 - Sat, Jun 6

7:30 am - 5:45 pm

SJC

HLN

9h 15m

2 stops

6:22 pm - 10:35 pm

HLN

SJC

5h 13m

1 stop

$324Alaska Airlines

Sat, May 2 - Wed, May 6

7:30 am - 5:45 pm

SJC

HLN

9h 15m

2 stops

6:22 pm - 10:55 pm

HLN

SJC

29h 33m

2 stops

$393Alaska Airlines

Sat, May 2 - Wed, May 6

8:00 am - 4:06 pm

SJC

HLN

7h 06m

2 stops

4:43 pm - 11:26 pm

HLN

SJC

7h 43m

1 stop

$401Alaska Airlines

Sun, May 31 - Sat, Jun 6

6:15 am - 5:45 pm

SJC

HLN

10h 30m

1 stop

6:22 pm - 6:49 pm

HLN

SJC

25h 27m

1 stop

$433Alaska Airlines

Sun, May 3 - Mon, May 11

10:22 am - 5:45 pm

SJC

HLN

6h 23m

1 stop

6:22 pm - 10:02 am

HLN

SJC

16h 40m

2 stops

$533Alaska Airlines

Sat, Mar 21 - Sat, Mar 28

10:22 am - 5:45 pm

SJC

HLN

6h 23m

1 stop

6:22 pm - 10:02 am

HLN

SJC

16h 40m

2 stops

$545Alaska Airlines

Sat, Mar 21 - Sat, Mar 28

6:43 am - 5:45 pm

SJC

HLN

10h 02m

2 stops

6:22 pm - 10:35 pm

HLN

SJC

5h 13m

1 stop

$550Alaska Airlines

Sun, May 3 - Mon, May 11

8:00 am - 4:06 pm

SJC

HLN

7h 06m

2 stops

4:43 pm - 10:59 pm

HLN

SJC

7h 16m

2 stops

$562Alaska Airlines

Sun, May 31 - Sat, Jun 6

Alaska Airlines flights from San Jose, California to Helena

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

Alaska Airlines

May 31

SJC8:00 amSan Jose

7h 06m

1 stop

HLN4:06 pmHelena

Jun 6

HLN4:43 pmHelena

7h 43m

1 stop

SJC11:26 pmSan Jose

$314

Alaska Airlines

May 2

SJC7:30 amSan Jose

9h 15m

2 stops

HLN5:45 pmHelena

May 6

HLN6:22 pmHelena

5h 13m

1 stop

SJC10:35 pmSan Jose

$324

Alaska Airlines

May 2

SJC7:30 amSan Jose

9h 15m

2 stops

HLN5:45 pmHelena

May 6

HLN6:22 pmHelena

29h 33m

2 stops

SJC10:55 pmSan Jose

$393

Delta flights from San Jose, California to Helena

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

Delta

Feb 5

SJC4:54 pmSan Jose

4h 35m

1 stop

HLN10:29 pmHelena

Feb 6

HLN5:30 amHelena

4h 30m

1 stop

SJC9:00 amSan Jose

$841

Delta

Feb 5

SJC1:55 pmSan Jose

7h 34m

2 stops

HLN10:29 pmHelena

Feb 7

HLN1:10 pmHelena

10h 02m

2 stops

SJC10:12 pmSan Jose

$1,516

Delta

Feb 13

SJC5:45 amSan Jose

5h 40m

1 stop

HLN12:25 pmHelena

Feb 16

HLN5:30 amHelena

8h 22m

2 stops

SJC12:52 pmSan Jose

$1,587

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

Sat 5/2

2:33 pm-9:46 pm

1 stop6h 13m

Helena

Wed 5/6

6:15 am-1:28 pm

1 stop8h 13m

$287

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 5/31

8:00 am-4:06 pm

1 stop7h 06m

Helena

Sat 6/6

4:43 pm-11:26 pm

1 stop7h 43m

$314

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 5/2

7:30 am-5:45 pm

2 stops9h 15m

Helena

Wed 5/6

6:22 pm-10:35 pm

1 stop5h 13m

$324

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 5/2

7:30 am-5:45 pm

2 stops9h 15m

Helena

Wed 5/6

6:22 pm-10:55 pm

2 stops29h 33m

$393

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 5/31

8:00 am-4:06 pm

2 stops7h 06m

Helena

Sat 6/6

4:43 pm-11:26 pm

1 stop7h 43m

$401

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 5/3

6:15 am-5:45 pm

1 stop10h 30m

Helena

Mon 5/11

6:22 pm-6:49 pm

1 stop25h 27m

$433

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 3/21

10:22 am-5:45 pm

1 stop6h 23m

Helena

Sat 3/28

6:22 pm-10:02 am

2 stops16h 40m

$533

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sat 3/21

10:22 am-5:45 pm

1 stop6h 23m

Helena

Sat 3/28

6:22 pm-10:02 am

2 stops16h 40m

$545

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 5/3

6:43 am-5:45 pm

2 stops10h 02m

Helena

Mon 5/11

6:22 pm-10:35 pm

1 stop5h 13m

$550

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Sun 5/31

8:00 am-4:06 pm

2 stops7h 06m

Helena

Sat 6/6

4:43 pm-10:59 pm

2 stops7h 16m

$562

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 is the most popular carrier 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 47% 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 34m
Direct flights	None

The fastest flight from San Jose, California to Helena takes 4h 34m

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 34m 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.