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$176+ Cheap flights from Helena to Oakland, CA (HLN - OAK)

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OAK
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Helena to Oakland

Cheapest flights from Helena to Oakland
Explore the most affordable flight options available from Helena to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

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 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.
Sat 5/301:00 pm
HLN
-
OAK
1 stop4h 26m
Delta
Tue 6/25:06 pm
OAK
-
HLN
1 stop4h 27m
Delta
Deal found 2/2$383
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.
Sat 5/301:00 pm
HLN
-
OAK
1 stop4h 26m
Delta
Mon 6/15:06 pm
OAK
-
HLN
1 stop4h 27m
Delta
Deal found 2/2$403
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.
Fri 5/291:00 pm
HLN
-
OAK
1 stop4h 26m
Delta
Tue 6/25:06 pm
OAK
-
HLN
1 stop4h 27m
Delta
Deal found 2/2$435
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.
Fri 5/291:00 pm
HLN
-
OAK
1 stop4h 26m
Delta
Mon 6/15:06 pm
OAK
-
HLN
1 stop4h 27m
Delta
Deal found 2/2$455
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.
Thu 5/284:43 pm
HLN
-
OAK
1 stop8h 11m
Alaska Airlines
Tue 6/27:00 am
OAK
-
HLN
1 stop8h 06m
Alaska Airlines
Deal found 2/2$463
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.
Sun 5/314:43 pm
HLN
-
OAK
1 stop20h 23m
Alaska Airlines
Mon 6/17:59 pm
OAK
-
HLN
1 stop19h 07m
Alaska Airlines
Deal found 2/2$473
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.
Fri 5/294:43 pm
HLN
-
OAK
2 stops27h 41m
Alaska Airlines
Tue 6/27:00 am
OAK
-
HLN
1 stop8h 06m
Alaska Airlines
Deal found 2/2$478
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.
Sun 5/314:43 pm
HLN
-
OAK
2 stops31h 54m
Alaska Airlines
Tue 6/27:00 am
OAK
-
HLN
1 stop8h 06m
Alaska Airlines
Deal found 2/2$483

Find flight deals from Helena to Oakland

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Oakland (OAK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(Alaska Airlines)

One-way from

$176
(Expedia)

Popular in

July

Cheapest in

December

Average price

$357
Provider with most accurate pricing for Helena-Oakland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Oakland flights.
Search Deals
From Helena to Oakland
Search Deals
One-way flight from Helena to Oakland
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($192 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($23 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 Oakland 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 4, 2026.
Use the filters below to find and compare flights from Helena to Oakland that are best for you.

Fly from

Helena

Fly to

Oakland

Route

Depart

Return

Price

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

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 5/30

1:00 pm-4:26 pm

1 stop4h 26m

Oakland

Tue 6/2

5:06 pm-10:33 pm

1 stop4h 27m

$383

HelenaOakland

HLN - OAK

HLNOAK

Helena

Tue 6/2

5:45 am-11:48 am

1 stop7h 03m

Oakland

Tue 6/2

5:06 pm-10:33 pm

1 stop4h 27m

$435

HelenaOakland

HLN - OAK

HLNOAK

Helena

Mon 6/1

1:00 pm-4:26 pm

1 stop4h 26m

Oakland

Tue 6/2

5:06 pm-10:33 pm

1 stop4h 27m

$435

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sun 5/31

4:43 pm-7:05 pm

1 stop27h 22m

Oakland

Tue 6/2

7:00 am-4:06 pm

1 stop8h 06m

$463

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 5/28

4:43 pm-11:54 pm

1 stop8h 11m

Oakland

Mon 6/1

7:59 pm-4:06 pm

1 stop19h 07m

$463

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 5/28

4:43 pm-11:54 pm

1 stop8h 11m

Oakland

Tue 6/2

7:00 am-4:06 pm

1 stop8h 06m

$463

HelenaOakland

HLN - OAK

HLNOAK

Helena

Wed 6/10

4:59 pm-10:47 pm

1 stop6h 48m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Compare providers for flights from Helena to Oakland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to Oakland in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-Oakland, California flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Oakland, California flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Oakland, California flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-Oakland, California flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-Oakland, California flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helena to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland 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 Oakland

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

Currently, July is the cheapest month in which you can book a flight from Helena to Oakland, California (average of $41). Flying from Helena to Oakland, California in May is currently the most expensive (average of $224). 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.

Related info for your journey

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

  • How long is the flight from Helena to Oakland, California?

    There are many flights that can get you from Helena to Oakland, California in 7h 13m. Fly via Alaska Airlines to get the fastest option. Airlines will cover a distance of 806 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to Oakland 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 Oakland, California?

    Currently, July is the cheapest month in which you can book a flight from Helena to Oakland, California (average of $41). Flying from Helena to Oakland, California in May is currently the most expensive (average of $224). 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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