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$126+ Cheap flights from Helena (HLN) to California

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LAX
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Helena to California

Cheapest flights from Helena to California
Explore the most affordable flight options available from Helena to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:15 am
HLN
-
SAN
1 stop7h 42m
United Airlines
Wed 3/186:30 am
SAN
-
HLN
1 stop6h 08m
United Airlines
Deal found 2/2$217
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:25 pm
HLN
-
ONT
1 stop7h 25m
United Airlines
Wed 3/115:15 am
ONT
-
HLN
1 stop7h 23m
United Airlines
Deal found 2/2$217
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:30 am
HLN
-
ONT
2 stops9h 24m
Delta
Wed 3/116:00 am
ONT
-
HLN
1 stop5h 21m
Delta
Deal found 2/2$222
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:36 pm
HLN
-
LAS
1 stop8h 19m
Alaska Airlines
Thu 3/56:00 am
LAS
-
HLN
1 stop8h 59m
Alaska Airlines
Deal found 2/1$234
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:36 pm
HLN
-
SAN
1 stop6h 13m
Alaska Airlines
Sat 3/77:26 pm
SAN
-
HLN
1 stop18h 33m
Alaska Airlines
Deal found 2/1$237
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:36 pm
HLN
-
OAK
1 stop7h 13m
Alaska Airlines
Wed 3/49:54 am
OAK
-
HLN
1 stop5h 05m
Alaska Airlines
Deal found 2/3$239
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:36 pm
HLN
-
SAN
1 stop6h 13m
Alaska Airlines
Wed 3/1810:48 am
SAN
-
HLN
1 stop5h 57m
Alaska Airlines
Deal found 2/2$241
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/241:10 pm
HLN
-
LAX
1 stop6h 05m
Delta
Mon 3/25:40 am
LAX
-
HLN
1 stop5h 45m
Delta
Deal found 2/3$248
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:36 pm
HLN
-
LAS
1 stop7h 20m
Alaska Airlines
Thu 3/57:00 am
LAS
-
HLN
1 stop7h 59m
Alaska Airlines
Deal found 2/2$251
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/94:36 pm
HLN
-
SAN
2 stops17h 58m
Alaska Airlines
Wed 3/1810:48 am
SAN
-
HLN
1 stop5h 57m
Alaska Airlines
Deal found 2/2$261
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:36 pm
HLN
-
LAS
1 stop7h 20m
Alaska Airlines
Tue 3/177:29 pm
LAS
-
HLN
2 stops21h 16m
Alaska Airlines
Deal found 2/2$262
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/72:30 pm
HLN
-
LAX
1 stop8h 14m
United Airlines
Sat 3/215:00 am
LAX
-
HLN
1 stop7h 38m
United Airlines
Deal found 2/3$262

Find flight deals from Helena to California

Keep the following information in mind while searching for Helena to California flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$126
(Alaska Airlines)

Popular in

November

Cheapest in

February

Average price

$261
Provider with most accurate pricing for Helena-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Los Angeles flights.
Search Deals
From Helena to California
Search Deals
One-way flight from Helena to California
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to 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, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Helena to California that are best for you.

Fly from

Helena

Fly to

California

Route

Depart

Return

Price

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Wed 3/11

2:30 pm-9:03 pm

1 stop7h 33m

San Diego

Wed 3/18

6:30 am-1:38 pm

1 stop6h 08m

$217

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Wed 2/25

4:36 pm-9:49 pm

1 stop6h 13m

San Diego

Wed 3/4

3:45 pm-3:59 pm

1 stop23h 14m

$217

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 2/25

2:25 pm-8:50 pm

1 stop7h 25m

Ontario

Wed 3/11

5:15 am-1:38 pm

1 stop7h 23m

$217

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 2/25

5:30 am-1:54 pm

2 stops9h 24m

Ontario

Wed 3/11

6:00 am-12:21 pm

1 stop5h 21m

$222

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Tue 3/10

4:36 pm-11:55 pm

1 stop8h 19m

Las Vegas Harry Reid Intl

Tue 3/17

7:00 am-3:59 pm

1 stop7h 59m

$234

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Tue 3/3

4:36 pm-9:49 pm

1 stop6h 13m

San Diego

Sat 3/7

7:26 pm-2:59 pm

1 stop18h 33m

$237

HelenaOakland

HLN - OAK

HLNOAK

Helena

Tue 3/3

4:36 pm-10:49 pm

1 stop7h 13m

Oakland

Wed 3/4

9:54 am-3:59 pm

1 stop5h 05m

$239

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Sat 3/14

4:36 pm-11:44 pm

1 stop8h 08m

San Diego

Wed 3/18

10:48 am-5:45 pm

1 stop5h 57m

$241

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Tue 3/10

4:36 pm-9:49 pm

1 stop6h 13m

San Diego

Wed 3/18

10:48 am-5:45 pm

1 stop5h 57m

$241

HelenaLos Angeles

HLN - LAX

HLNLAX

Helena

Tue 2/24

1:10 pm-6:15 pm

1 stop6h 05m

Los Angeles

Mon 3/2

5:40 am-12:25 pm

1 stop5h 45m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 40 results
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Best time to book a flight from Helena to California

Have a flexible travel schedule? Discover the best time to fly to California from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helena to California

What is the cheapest month to book a flight from Helena to California?

Currently, July is the cheapest month in which you can book a flight from Helena to California (average of $41). Flying from Helena to California in October is currently the most expensive (average of $165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated February 3, 2026.
Peruse reviews from past customers who have flown with Delta from Helena to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,138 reviews
Delta
7.9
Good
8,138 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Helena to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Helena to California?

    Located just 2.7 mi from the city center, Helena (HLN) is the airport most travelers will use when flying to California from Helena.

  • How long is the flight from Helena to California?

    Departing from Helena to California will take you 6h 13m. There are 997 mi between Helena and California. This flight may include one or multiple stops.

  • What are the most popular routes from Helena to California?

    The most popular route from Helena to California is Helena - Las Vegas Harry Reid Intl. You may also consider Helena - San Diego or Helena - Santa Ana J. Wayne/Orange Cnty.

  • Can I find deals for flights from Helena to California that include hotel bookings?

    Yes. In addition to deals on Helena to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to California.

  • Can I find deals for business class flights from Helena to California?

    Yes. Cheapflights offers flight deals from Helena to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to California?

    Currently, July is the cheapest month in which you can book a flight from Helena to California (average of $41). Flying from Helena to California in October is currently the most expensive (average of $165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Helena to California

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Top airline flying from Helena to California

Discover the top airline that operate flights from Helena to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$374FlexibilityNo cancel feeOn-timeN/A

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