HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$129+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LAX
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to California with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/22. 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 12/276:10 amHLN - ONT
1 stop7h 28mUnited Airlines
Sat 1/35:05 amONT - HLN
1 stop7h 40mUnited Airlines
Deal found 12/22$718
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/232:26 pmHLN - ONT
1 stop7h 41mUnited Airlines
Thu 12/255:05 amONT - HLN
1 stop7h 40mUnited Airlines
Deal found 12/22$737
This Delta deal was found by Cheapflights users on 12/22. 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 12/235:30 amHLN - BUR
1 stop4h 36mDelta
Thu 12/254:53 pmBUR - HLN
1 stop4h 37mDelta
Deal found 12/22$747
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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.
Sun 12/286:32 pmHLN - SJC
1 stop6h 27mAlaska Airlines
Wed 12/3110:24 amSJC - HLN
1 stop6h 31mAlaska Airlines
Deal found 12/22$873
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 12/256:10 amHLN - SJC
1 stop8h 23mUnited Airlines
Mon 12/292:29 pmSJC - HLN
1 stop6h 02mUnited Airlines
Deal found 12/22$874
This United Airlines deal was found by Cheapflights users on 12/22. 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 12/276:10 amHLN - LAX
1 stop7h 53mUnited Airlines
Sat 1/32:51 pmLAX - HLN
1 stop5h 40mUnited Airlines
Deal found 12/22$875
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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.
Fri 12/266:32 pmHLN - LAS
1 stop6h 16mAlaska Airlines
Sat 1/39:31 pmLAS - HLN
2 stops19h 24mAlaska Airlines
Deal found 12/21$876
This Delta deal was found by Cheapflights users on 12/21. 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.
Sat 12/271:11 pmHLN - SAN
1 stop22h 24mDelta
Thu 1/15:03 pmSAN - HLN
1 stop4h 27mDelta
Deal found 12/21$882
This Delta deal was found by Cheapflights users on 12/22. 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 12/245:30 amHLN - SJC
1 stop4h 40mDelta
Mon 12/295:55 amSJC - HLN
1 stop5h 35mDelta
Deal found 12/22$892
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/226:10 amHLN - SAN
1 stop9h 51mUnited Airlines
Wed 12/3110:30 pmSAN - HLN
2 stops22h 01mUnited Airlines
Deal found 12/21$899
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/222:26 pmHLN - SAN
1 stop7h 21mUnited Airlines
Thu 1/16:30 amSAN - HLN
1 stop6h 15mUnited Airlines
Deal found 12/21$912
This Delta deal was found by Cheapflights users on 12/21. 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.
Fri 12/265:30 amHLN - SAN
1 stop6h 05mDelta
Thu 1/16:15 amSAN - HLN
1 stop15h 15mDelta
Deal found 12/21$913

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 December 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$234
(Alaska Airlines)

One-way from

$129
(Alaska Airlines)

Popular in

December

Cheapest in

April

Average price

$473
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. 12% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 23, 2025.
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

HelenaMedford

HLN - MFR

HLNMFR

Helena

Sat 1/31

6:48 pm-11:56 pm

1 stop6h 08m

Medford

Wed 2/4

5:35 pm-6:11 pm

1 stop23h 36m

$234

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Sat 1/24

6:48 pm-11:03 pm

1 stop5h 15m

San Francisco

Tue 1/27

12:00 pm-6:11 pm

1 stop5h 11m

$238

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 1/28

6:48 pm-3:08 pm

1 stop21h 20m

Ontario

Sat 1/31

11:53 am-6:11 pm

1 stop5h 18m

$245

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Mon 2/16

4:36 pm-10:56 pm

1 stop7h 20m

Las Vegas Harry Reid Intl

Fri 2/20

8:00 am-3:59 pm

1 stop6h 59m

$258

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 1/31

6:48 pm-11:12 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Tue 2/3

10:07 am-6:11 pm

1 stop7h 04m

$258

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sun 2/22

4:36 pm-10:56 pm

1 stop7h 20m

Las Vegas Harry Reid Intl

Wed 2/25

6:00 am-3:59 pm

1 stop8h 59m

$258

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 1/24

6:48 pm-11:12 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Tue 1/27

10:07 am-6:11 pm

1 stop7h 04m

$258

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 3/14

4:36 pm-11:55 pm

1 stop8h 19m

Las Vegas Harry Reid Intl

Tue 3/17

8:00 am-3:59 pm

1 stop6h 59m

$258

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sun 1/25

6:15 am-10:45 am

1 stop5h 30m

Las Vegas Harry Reid Intl

Thu 1/29

5:20 am-1:41 pm

1 stop7h 21m

$259

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Wed 1/14

6:15 am-10:45 am

1 stop5h 30m

Las Vegas Harry Reid Intl

Wed 1/21

3:33 pm-9:26 pm

1 stop4h 53m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 52 results
1
2
3
...
6

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 December is currently the most expensive (average of $181). 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 December 23, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines 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
8,014 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
8,014 reviews
Delta
7.9
Good
8,014 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
United Airlines
7.4
Good
9,106 reviews
Delta
7.9
Good
8,014 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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 4h 35m. There are 919 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 - Los Angeles.

  • 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 December is currently the most expensive (average of $181). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to California

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Nashville flights
Billings to Nashville flights
Missoula to Nashville flights
Helena to Nashville flights
Great Falls to Nashville flights
Bozeman to Las Vegas flights
Bozeman to Atlanta flights
Bozeman to Denver flights
Bozeman to Dallas/Fort Worth flights
Missoula to Sky Harbor Intl flights
Bozeman to Newark flights
Butte to Nashville flights
Kalispell to Nashville flights
Bozeman to Los Angeles flights
Bozeman to John F Kennedy Intl flights
Billings to Los Angeles flights
Missoula to Los Angeles flights
Billings to Dallas/Fort Worth flights
Bozeman to San Francisco flights
Bozeman to Seattle flights
Bozeman to Orlando flights
Bozeman to Sky Harbor Intl flights
Billings to Seattle flights
Kalispell to Denver flights
Great Falls to Newark flights
Missoula to Dallas/Fort Worth flights
Great Falls to John F Kennedy Intl flights
Kalispell to Dallas/Fort Worth flights
Bozeman to LaGuardia flights
Bozeman to San Diego flights
Kalispell to New Orleans flights
Bozeman to Boston flights
Bozeman to Hobby flights
Missoula to Seattle flights
Missoula to Denver flights
Billings to Denver flights
Bozeman to Memphis flights
Kalispell to Seattle flights
Great Falls to Seattle flights
Kalispell to Portland flights
Bozeman to Miami flights
Billings to Sky Harbor Intl flights
Billings to Austin flights
Bozeman to Kahului flights
Billings to Tampa flights
Bozeman to Minneapolis flights
Missoula to Portland flights
Billings to San Diego flights
Bozeman to New Orleans flights
Missoula to Honolulu flights

Top 2 airlines flying from Helena to California

Discover the top 2 airlines 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$379FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.