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.

$231 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.

8:02 am - 4:49 pmSJC San Jose-HLN Helena

7h 47m1 stop Seattle/Tacoma Intl

5:26 pm - 3:52 pmHLN Helena-SJC San Jose

23h 26m1 stop Seattle/Tacoma Intl

$428Alaska Airlines

lø., okt. 24 - on., okt. 28

8:03 am - 4:04 pmSJC San Jose-HLN Helena

7h 01m1 stop Seattle/Tacoma Intl

5:09 pm - 10:40 pmHLN Helena-SJC San Jose

6h 31m1 stop Seattle/Tacoma Intl

$461Alaska Airlines

fr., nov. 13 - fr., nov. 20

6:00 am - 12:17 pmSJC San Jose-HLN Helena

5h 17m1 stop Salt Lake City

12:57 pm - 4:13 pmHLN Helena-SJC San Jose

4h 16m1 stop Salt Lake City

$461Delta

to., sep. 10 - to., sep. 17

10:37 am - 4:49 pmSJC San Jose-HLN Helena

5h 12m1 stop Seattle/Tacoma Intl

5:26 pm - 10:59 pmHLN Helena-SJC San Jose

6h 33m1 stop Seattle/Tacoma Intl

$461Alaska Airlines

lø., okt. 24 - on., okt. 28

10:22 am - 4:41 pmSJC San Jose-HLN Helena

5h 19m1 stop Seattle/Tacoma Intl

5:26 pm - 10:59 pmHLN Helena-SJC San Jose

6h 33m1 stop Seattle/Tacoma Intl

$461Alaska Airlines

lø., sep. 26 - lø., okt. 3

7:03 am - 3:31 pmSJC San Jose-HLN Helena

7h 28m1 stop Seattle/Tacoma Intl

4:08 pm - 10:12 pmHLN Helena-SJC San Jose

7h 04m1 stop Seattle/Tacoma Intl

$461Alaska Airlines

fr., jan. 15 - sø., jan. 17

5:45 am - 12:24 pmSJC San Jose-HLN Helena

5h 39m1 stop Salt Lake City

5:45 am - 4:15 pmHLN Helena-SJC San Jose

11h 30m2 stops Salt Lake City Los Angeles Los Angeles

$466Delta

fr., jan. 15 - sø., jan. 17

2:12 pm - 4:04 pmSJC San Jose-HLN Helena

24h 52m2 stops Portland Seattle/Tacoma Intl

5:09 pm - 10:40 pmHLN Helena-SJC San Jose

6h 31m1 stop Seattle/Tacoma Intl

$487Alaska Airlines

fr., nov. 13 - fr., nov. 20

10:37 am - 4:49 pmSJC San Jose-HLN Helena

5h 12m1 stop Seattle/Tacoma Intl

5:26 pm - 12:35 pmHLN Helena-SJC San Jose

20h 09m2 stops Seattle/Tacoma Intl Portland

$487Alaska Airlines

lø., okt. 24 - on., okt. 28

1:50 pm - 10:41 pmSJC San Jose-HLN Helena

7h 51m2 stops Los Angeles Los Angeles Salt Lake City

5:45 am - 12:54 pmHLN Helena-SJC San Jose

8h 09m2 stops Salt Lake City Los Angeles Los Angeles

$636Delta

fr., jan. 15 - sø., jan. 17

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United Airlines flights from San Jose, California to Helena

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

United Airlines

Aug 24

SJC12:51 pmSan Jose

7h 39m

1 stop

HLN9:30 pmHelena

Aug 28

HLN6:15 amHelena

7h 53m

1 stop

SJC1:08 pmSan Jose

$713

United Airlines

Aug 24

SJC12:51 pmSan Jose

7h 39m

1 stop

HLN9:30 pmHelena

Aug 27

HLN2:35 pmHelena

7h 22m

1 stop

SJC8:57 pmSan Jose

$829

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 24

SJC8:02 amSan Jose

7h 47m

1 stop

HLN4:49 pmHelena

Oct 28

HLN5:26 pmHelena

23h 26m

1 stop

SJC3:52 pmSan Jose

$428

Alaska Airlines

Oct 24

SJC10:37 amSan Jose

5h 12m

1 stop

HLN4:49 pmHelena

Oct 28

HLN5:26 pmHelena

6h 33m

1 stop

SJC10:59 pmSan Jose

$461

Alaska Airlines

Oct 24

SJC10:37 amSan Jose

5h 12m

1 stop

HLN4:49 pmHelena

Oct 28

HLN5:26 pmHelena

25h 15m

2 stops

SJC5:41 pmSan Jose

$487

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

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

lø. 10/24

8:02 am-4:49 pm

1 stop7h 47m

Helena

on. 10/28

5:26 pm-3:52 pm

1 stop23h 26m

$428

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

fr. 11/13

8:03 am-4:04 pm

1 stop7h 01m

Helena

fr. 11/20

5:09 pm-10:40 pm

1 stop6h 31m

$461

Quickest round-trip

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

to. 9/10

6:00 am-12:17 pm

1 stop5h 17m

Helena

to. 9/17

12:57 pm-4:13 pm

1 stop4h 16m

$461

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

lø. 10/24

10:37 am-4:49 pm

1 stop5h 12m

Helena

on. 10/28

5:26 pm-10:59 pm

1 stop6h 33m

$461

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

lø. 9/26

10:22 am-4:41 pm

1 stop5h 19m

Helena

lø. 10/3

5:26 pm-10:59 pm

1 stop6h 33m

$461

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

fr. 1/15

7:03 am-3:31 pm

1 stop7h 28m

Helena

sø. 1/17

4:08 pm-10:12 pm

1 stop7h 04m

$461

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

fr. 1/15

5:45 am-12:24 pm

1 stop5h 39m

Helena

sø. 1/17

5:45 am-4:15 pm

2 stops11h 30m

$466

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

fr. 11/13

2:12 pm-4:04 pm

2 stops24h 52m

Helena

fr. 11/20

5:09 pm-10:40 pm

1 stop6h 31m

$487

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

lø. 10/24

10:37 am-4:49 pm

1 stop5h 12m

Helena

on. 10/28

5:26 pm-12:35 pm

2 stops20h 09m

$487

San JoseHelena

SJC San Jose - HLN Helena

SJCHLN

San Jose

fr. 1/15

1:50 pm-10:41 pm

2 stops7h 51m

Helena

sø. 1/17

5:45 am-12:54 pm

2 stops8h 09m

$636

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?

Delta and Alaska 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, California according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 4 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 41m
Direct flights	None

The fastest flight from San Jose, California to Helena takes 4h 41m

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 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.