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.

$216 Cheap Flights from San Jose, California to Helena in 2026

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.

6:15 am - 4:11 pm

SJC

HLN

8h 56m

1 stop

4:48 pm - 10:53 pm

HLN

SJC

7h 05m

1 stop

$323Alaska Airlines

Tue, Oct 27 - Sat, Oct 31

2:45 pm - 12:15 pm

SJC

HLN

20h 30m

2 stops

5:40 am - 2:05 pm

HLN

SJC

9h 25m

2 stops

$343Delta

Tue, Aug 25 - Tue, Sep 1

6:45 pm - 4:34 pm

SJC

HLN

20h 49m

1 stop

5:32 pm - 6:45 pm

HLN

SJC

26h 13m

1 stop

$353Alaska Airlines

Tue, Aug 18 - Fri, Aug 21

11:37 am - 12:15 pm

SJC

HLN

23h 38m

2 stops

12:55 pm - 10:50 pm

HLN

SJC

10h 55m

2 stops

$358Delta

Wed, Aug 26 - Sat, Aug 29

7:43 pm - 4:04 pm

SJC

HLN

19h 21m

1 stop

4:41 pm - 8:43 pm

HLN

SJC

5h 02m

1 stop

$368Alaska Airlines

Tue, Nov 3 - Sat, Nov 7

7:44 pm - 4:11 pm

SJC

HLN

19h 27m

2 stops

4:48 pm - 10:53 pm

HLN

SJC

7h 05m

1 stop

$376Alaska Airlines

Tue, Oct 27 - Sat, Oct 31

8:53 pm - 12:15 pm

SJC

HLN

14h 22m

2 stops

12:55 pm - 8:13 pm

HLN

SJC

8h 18m

2 stops

$378Delta

Mon, Aug 24 - Wed, Sep 2

8:02 am - 4:55 pm

SJC

HLN

7h 53m

1 stop

5:11 pm - 6:45 pm

HLN

SJC

26h 34m

1 stop

$387Alaska Airlines

Fri, Aug 21 - Tue, Aug 25

5:50 pm - 12:15 pm

SJC

HLN

17h 25m

2 stops

5:40 am - 8:54 am

HLN

SJC

4h 14m

1 stop

$388Delta

Tue, Aug 25 - Tue, Sep 1

11:38 am - 10:30 pm

SJC

HLN

9h 52m

2 stops

5:40 am - 5:02 pm

HLN

SJC

12h 22m

2 stops

$393Delta

Wed, Aug 19 - Wed, Aug 26

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Delta flights from San Jose, California to Helena

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

Delta

Aug 25

SJC2:45 pmSan Jose

20h 30m

2 stops

HLN12:15 pmHelena

Sep 1

HLN5:40 amHelena

9h 25m

2 stops

SJC2:05 pmSan Jose

$343

Delta

Aug 26

SJC11:37 amSan Jose

23h 38m

2 stops

HLN12:15 pmHelena

Aug 29

HLN12:55 pmHelena

10h 55m

2 stops

SJC10:50 pmSan Jose

$358

Delta

Aug 24

SJC8:53 pmSan Jose

14h 22m

2 stops

HLN12:15 pmHelena

Sep 2

HLN12:55 pmHelena

8h 18m

2 stops

SJC8:13 pmSan Jose

$378

Alaska Airlines flights from San Jose, California to Helena

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

Alaska Airlines

Oct 27

SJC6:15 amSan Jose

8h 56m

1 stop

HLN4:11 pmHelena

Oct 31

HLN4:48 pmHelena

7h 05m

1 stop

SJC10:53 pmSan Jose

$323

Alaska Airlines

Aug 18

SJC6:45 pmSan Jose

20h 49m

1 stop

HLN4:34 pmHelena

Aug 21

HLN5:32 pmHelena

26h 13m

1 stop

SJC6:45 pmSan Jose

$353

Alaska Airlines

Nov 3

SJC7:43 pmSan Jose

19h 21m

1 stop

HLN4:04 pmHelena

Nov 7

HLN4:41 pmHelena

5h 02m

1 stop

SJC8:43 pmSan Jose

$368

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

Cheapest round-trip

Quickest round-trip

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 10/27

6:15 am-4:11 pm

1 stop8h 56m

Helena

Sat 10/31

4:48 pm-10:53 pm

1 stop7h 05m

$323

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 8/25

2:45 pm-12:15 pm

2 stops20h 30m

Helena

Tue 9/1

5:40 am-2:05 pm

2 stops9h 25m

$343

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 8/18

6:45 pm-4:34 pm

1 stop20h 49m

Helena

Fri 8/21

5:32 pm-6:45 pm

1 stop26h 13m

$353

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 8/26

11:37 am-12:15 pm

2 stops23h 38m

Helena

Sat 8/29

12:55 pm-10:50 pm

2 stops10h 55m

$358

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 11/3

7:43 pm-4:04 pm

1 stop19h 21m

Helena

Sat 11/7

4:41 pm-8:43 pm

1 stop5h 02m

$368

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 10/27

7:44 pm-4:11 pm

2 stops19h 27m

Helena

Sat 10/31

4:48 pm-10:53 pm

1 stop7h 05m

$376

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Mon 8/24

8:53 pm-12:15 pm

2 stops14h 22m

Helena

Wed 9/2

12:55 pm-8:13 pm

2 stops8h 18m

$378

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Fri 8/21

8:02 am-4:55 pm

1 stop7h 53m

Helena

Tue 8/25

5:11 pm-6:45 pm

1 stop26h 34m

$387

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Tue 8/25

5:50 pm-12:15 pm

2 stops17h 25m

Helena

Tue 9/1

5:40 am-8:54 am

1 stop4h 14m

$388

San JoseHelena

SJC - HLN

SJCHLN

San Jose

Wed 8/19

11:38 am-10:30 pm

2 stops9h 52m

Helena

Wed 8/26

5:40 am-5:02 pm

2 stops12h 22m

$393

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, 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?

United 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 49% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 5 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 38m
Direct flights	None

The fastest flight from San Jose, California to Helena takes 4h 38m

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

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

How far is San Jose to Helena by plane?
The distance between San Jose and Helena is about 813.6 mi. 4h 38m 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.