HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — LAX
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
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 February 19, 2026.

This Expedia deal was found by Cheapflights users on 2/16. 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.
Wed 4/296:22 pm
HLN
-
SAN
1 stop26h 17m
Alaska Airlines
Tue 5/510:51 am
SAN
-
HLN
1 stop5h 54m
Alaska Airlines
Deal found 2/16$243
This United Airlines deal was found by Cheapflights users on 2/15. 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 4/282:25 pm
HLN
-
LAX
1 stop8h 25m
United Airlines
Tue 5/52:20 pm
LAX
-
HLN
1 stop6h 26m
United Airlines
Deal found 2/15$243
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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.
Sat 4/116:22 pm
HLN
-
LAS
1 stop5h 24m
Alaska Airlines
Wed 4/1510:00 am
LAS
-
HLN
1 stop6h 45m
Alaska Airlines
Deal found 2/15$251
This Delta deal was found by Cheapflights users on 2/17. 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 3/175:30 am
HLN
-
SFO
1 stop4h 26m
Delta
Thu 3/195:40 am
SFO
-
HLN
1 stop5h 41m
Delta
Deal found 2/17$261
This Alaska Airlines deal was found by Cheapflights users on 2/17. 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 3/174:36 pm
HLN
-
SMF
1 stop5h 48m
Alaska Airlines
Tue 3/245:00 pm
SMF
-
HLN
1 stop23h 45m
Alaska Airlines
Deal found 2/17$261
This Delta deal was found by Cheapflights users on 2/16. 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 3/175:30 am
HLN
-
SJC
1 stop4h 22m
Delta
Thu 3/196:00 am
SJC
-
HLN
1 stop5h 21m
Delta
Deal found 2/16$266
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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.
Sat 4/116:22 pm
HLN
-
LAS
1 stop5h 24m
Alaska Airlines
Tue 4/147:00 am
LAS
-
HLN
1 stop9h 45m
Alaska Airlines
Deal found 2/15$267
This Delta deal was found by Cheapflights users on 2/18. 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.
Thu 8/65:45 am
HLN
-
SMF
1 stop4h 03m
Delta
Tue 8/185:00 pm
SMF
-
HLN
1 stop4h 34m
Delta
Deal found 2/18$269
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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 6/194:59 pm
HLN
-
LAS
1 stop8h 00m
Alaska Airlines
Tue 6/2312:41 pm
LAS
-
HLN
1 stop26h 41m
Alaska Airlines
Deal found 2/18$269
This United Airlines deal was found by Cheapflights users on 2/17. 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 4/152:25 pm
HLN
-
MFR
1 stop8h 12m
United Airlines
Sun 4/1912:51 pm
MFR
-
HLN
1 stop7h 42m
United Airlines
Deal found 2/17$271
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 3/134:36 pm
HLN
-
SNA
1 stop28h 30m
Alaska Airlines
Mon 3/168:49 pm
SNA
-
HLN
1 stop18h 10m
Alaska Airlines
Deal found 2/19$273
This Delta deal was found by Cheapflights users on 2/16. 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.
Thu 3/51:10 pm
HLN
-
LAX
1 stop6h 05m
Delta
Tue 3/105:45 am
LAX
-
HLN
1 stop5h 36m
Delta
Deal found 2/16$276

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 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$243
(Expedia)

One-way from

$126
(Delta)

Popular in

April

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
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 19, 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 4/29

6:22 pm-7:39 pm

1 stop26h 17m

San Diego

Tue 5/5

10:51 am-5:45 pm

1 stop5h 54m

$243

HelenaLos Angeles

HLN - LAX

HLNLAX

Helena

Tue 4/28

2:25 pm-9:50 pm

1 stop8h 25m

Los Angeles

Tue 5/5

2:20 pm-9:46 pm

1 stop6h 26m

$243

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 4/11

6:22 pm-10:46 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Wed 4/15

10:00 am-5:45 pm

1 stop6h 45m

$251

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Wed 3/11

4:36 pm-11:55 pm

1 stop8h 19m

Las Vegas Harry Reid Intl

Tue 3/17

4:05 pm-5:45 pm

1 stop24h 40m

$251

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 5/2

6:22 pm-10:53 pm

1 stop5h 31m

Las Vegas Harry Reid Intl

Wed 5/6

7:00 am-5:45 pm

1 stop9h 45m

$251

HelenaSan Francisco

HLN - SFO

HLNSFO

Helena

Tue 3/17

5:30 am-8:56 am

1 stop4h 26m

San Francisco

Thu 3/19

5:40 am-12:21 pm

1 stop5h 41m

$261

HelenaSan Jose

HLN - SJC

HLNSJC

Helena

Tue 3/17

5:30 am-8:52 am

1 stop4h 22m

San Jose

Thu 3/19

6:00 am-12:21 pm

1 stop5h 21m

$266

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sun 4/12

6:22 pm-10:46 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Sat 4/18

6:00 am-5:45 pm

1 stop10h 45m

$267

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Tue 4/14

6:22 pm-10:46 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Sat 4/18

6:00 am-5:45 pm

1 stop10h 45m

$267

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 4/11

6:22 pm-10:46 pm

1 stop5h 24m

Las Vegas Harry Reid Intl

Sat 4/18

6:00 am-5:45 pm

1 stop10h 45m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 60 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 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 19, 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
8,212 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

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
8,212 reviews
Delta
7.9
Good
8,212 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

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 4h 26m. There are 816 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 - San Francisco.

  • 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

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 Seattle flights
Bozeman to Los Angeles flights
Bozeman to Newark flights
Missoula to Seattle flights
Bozeman to Las Vegas flights
Bozeman to Minneapolis flights
Bozeman to San Francisco flights
Bozeman to Boston flights
Bozeman to John F Kennedy Intl flights
Billings to Seattle flights
Bozeman to Denver flights
Billings to Anchorage flights
Bozeman to LaGuardia flights
Bozeman to Dallas/Fort Worth flights
Bozeman to Tucson flights
Missoula to Sky Harbor Intl flights
Bozeman to Sky Harbor Intl flights
Bozeman to O'Hare Intl flights
Bozeman to San Diego flights
Bozeman to Atlanta flights
Missoula to Denver flights
Great Falls to Orlando flights
Helena to Denver flights
Billings to Dallas/Fort Worth flights
Bozeman to Orlando flights
Kalispell to Minneapolis flights
Billings to Tucson flights
Missoula to Portland flights
Bozeman to Dulles Intl flights
Missoula to O'Hare Intl flights
Kalispell to Los Angeles flights
Bozeman to Miami flights
Missoula to Minneapolis flights
Bozeman to Nashville flights
Missoula to Las Vegas flights
Kalispell to Seattle flights
Kalispell to Denver flights
Missoula to Honolulu flights
Great Falls to Seattle flights
Billings to Sky Harbor Intl flights
Kalispell to Portland flights
Kalispell to Dallas/Fort Worth flights
Bozeman to Portland flights
Kalispell to Salt Lake City flights
Billings to Boston flights
Bozeman to Santa Ana flights
Bozeman to Boise flights
Bozeman to Midway flights
Bozeman to Lihue flights
Missoula to Orlando flights

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 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$369FlexibilityNo cancel feeOn-timeN/A

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.
Site
©2026 Cheapflights