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Cheap flights from Helena to San Jose from $216

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to San Jose departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helena to San Jose

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:48 pm - 10:53 pm
HLN
-
SJC
7h 05m
1 stop
Alaska Airlines Logo
6:15 am - 4:11 pm
SJC
-
HLN
8h 56m
1 stop
$360Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
4:48 pm - 10:53 pm
HLN
-
SJC
7h 05m
1 stop
Alaska Airlines Logo
10:35 am - 4:11 pm
SJC
-
HLN
4h 36m
1 stop
$387Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
4:48 pm - 10:53 pm
HLN
-
SJC
7h 05m
1 stop
Alaska Airlines Logo
6:31 am - 4:11 pm
SJC
-
HLN
8h 40m
2 stops
$414Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
4:48 pm - 10:53 pm
HLN
-
SJC
7h 05m
1 stop
Alaska Airlines Logo
3:49 pm - 4:11 pm
SJC
-
HLN
23h 22m
2 stops
$424Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
1:00 pm - 4:07 pm
HLN
-
SJC
4h 07m
1 stop
Delta Logo
6:00 am - 12:15 pm
SJC
-
HLN
5h 15m
1 stop
$431Delta
Sat, Jul 4 - Tue, Jul 7
Alaska Airlines Logo
4:48 pm - 10:53 pm
HLN
-
SJC
7h 05m
1 stop
Alaska Airlines Logo
7:55 am - 4:11 pm
SJC
-
HLN
7h 16m
2 stops
$433Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
1:00 pm - 6:24 pm
HLN
-
SJC
6h 24m
1 stop
Delta Logo
2:59 pm - 10:39 pm
SJC
-
HLN
6h 40m
2 stops
$436Delta
Sat, Jul 4 - Tue, Jul 7
Delta Logo
1:00 pm - 10:47 pm
HLN
-
SJC
10h 47m
2 stops
Delta Logo
2:59 pm - 10:39 pm
SJC
-
HLN
6h 40m
2 stops
$441Delta
Sat, Jul 4 - Tue, Jul 7
Alaska Airlines Logo
4:48 pm - 8:17 am
HLN
-
SJC
16h 29m
2 stops
Alaska Airlines Logo
7:55 am - 4:11 pm
SJC
-
HLN
7h 16m
2 stops
$498Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
4:48 pm - 8:17 am
HLN
-
SJC
16h 29m
2 stops
Alaska Airlines Logo
7:55 am - 4:11 pm
SJC
-
HLN
7h 16m
2 stops
$503Alaska Airlines
Sat, Oct 24 - Wed, Oct 28

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Alaska Airlines flights from Helena to San Jose, California

Our best Alaska Airlines deals on Helena to San Jose, California flight tickets
Alaska Airlines
Oct 24
HLN4:48 pmHelena
7h 05m
1 stop
SJC10:53 pmSan Jose
Oct 28
SJC6:15 amSan Jose
8h 56m
1 stop
HLN4:11 pmHelena
$360
Alaska Airlines
Oct 24
HLN4:48 pmHelena
7h 05m
1 stop
SJC10:53 pmSan Jose
Oct 28
SJC10:35 amSan Jose
4h 36m
1 stop
HLN4:11 pmHelena
$387
Alaska Airlines
Oct 24
HLN4:48 pmHelena
7h 05m
1 stop
SJC10:53 pmSan Jose
Oct 28
SJC6:31 amSan Jose
8h 40m
2 stops
HLN4:11 pmHelena
$414

Delta flights from Helena to San Jose, California

Our best Delta deals on Helena to San Jose, California flight tickets
Delta
Jul 4
HLN1:00 pmHelena
4h 07m
1 stop
SJC4:07 pmSan Jose
Jul 7
SJC6:00 amSan Jose
5h 15m
1 stop
HLN12:15 pmHelena
$431
Delta
Jul 4
HLN1:00 pmHelena
6h 24m
1 stop
SJC6:24 pmSan Jose
Jul 7
SJC2:59 pmSan Jose
6h 40m
2 stops
HLN10:39 pmHelena
$436
Delta
Jul 4
HLN1:00 pmHelena
10h 47m
2 stops
SJC10:47 pmSan Jose
Jul 7
SJC2:59 pmSan Jose
6h 40m
2 stops
HLN10:39 pmHelena
$441

momondo Fare Finder

 
Customize your flight search to find flights from Helena to San Jose, California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Helena to San Jose, California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-10:53 pm

1 stop7h 05m

San Jose

Wed 10/28

6:15 am-4:11 pm

1 stop8h 56m

$360

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-10:53 pm

1 stop7h 05m

San Jose

Wed 10/28

10:35 am-4:11 pm

1 stop4h 36m

$387

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-10:53 pm

1 stop7h 05m

San Jose

Wed 10/28

6:31 am-4:11 pm

2 stops8h 40m

$414

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-10:53 pm

1 stop7h 05m

San Jose

Wed 10/28

3:49 pm-4:11 pm

2 stops23h 22m

$424
Quickest round-trip

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 7/4

1:00 pm-4:07 pm

1 stop4h 07m

San Jose

Tue 7/7

6:00 am-12:15 pm

1 stop5h 15m

$431

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-10:53 pm

1 stop7h 05m

San Jose

Wed 10/28

7:55 am-4:11 pm

2 stops7h 16m

$433

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 7/4

1:00 pm-6:24 pm

1 stop6h 24m

San Jose

Tue 7/7

2:59 pm-10:39 pm

2 stops6h 40m

$436

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 7/4

1:00 pm-10:47 pm

2 stops10h 47m

San Jose

Tue 7/7

2:59 pm-10:39 pm

2 stops6h 40m

$441

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-8:17 am

2 stops16h 29m

San Jose

Wed 10/28

7:55 am-4:11 pm

2 stops7h 16m

$498

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Sat 10/24

4:48 pm-8:17 am

2 stops16h 29m

San Jose

Wed 10/28

7:55 am-4:11 pm

2 stops7h 16m

$503

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to San Jose from

How to get the cheapest flight ticket from Helena to San Jose, California

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

Can stopping save me money on Helena to San Jose, California flights?

You could potentially save up to 58% on your flight if you consider stops on a Helena to San Jose, California flight.

When to book flights from Helena to San Jose, California

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

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

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

Fastest flight time

4h 07m

Direct flights

None
The fastest flight from Helena to San Jose, California takes 4h 07m
There are no direct flights from Helena to San Jose, California. There are no popular flight routes from Helena to San Jose, California.
Search flight deals

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

  • How far is Helena to San Jose by plane?

    The straight-line distance from Helena to San Jose is 813.6 mi. A reasonable flight in good conditions will take 4h 07m.

  • When did momondo last update prices for flights from Helena Airport to San Jose Airport?

    Prices for flights from Helena Airport to San Jose Airport are updated daily.

  • How old do you have to be to fly from Helena Airport to San Jose Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Jose Airport.

  • What documentation or ID do you need to fly to San Jose Airport?

    The travel and health documents you'll need for your trip to San Jose 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 San Jose 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 Helena to San Jose?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Helena to San Jose. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Helena to San Jose with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Jose from Helena with this policy.

How can momondo help me find flights from Helena to San Jose?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Jose from Helena.

I’m not ready to book a flight from Helena to San Jose right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Helena to San Jose flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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