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$228+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OAK
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
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 May 20, 2026.

This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Sat 10/244:48 pm
HLN
-
OAK
1 stop7h 07m
Alaska Airlines
Tue 10/2712:20 pm
OAK
-
HLN
1 stop26h 51m
Alaska Airlines
Deal found 5/18$365
This Expedia deal was found by Cheapflights users on 5/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:18 pm
HLN
-
OAK
1 stop6h 36m
Alaska Airlines
Sun 9/278:04 am
OAK
-
HLN
2 stops7h 37m
Alaska Airlines
Deal found 5/17$533
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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.
Wed 7/85:09 pm
HLN
-
OAK
1 stop17h 17m
Alaska Airlines
Sun 7/126:22 am
OAK
-
HLN
1 stop9h 10m
Alaska Airlines
Deal found 5/17$561
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 6/84:43 pm
HLN
-
OAK
1 stop20h 24m
Alaska Airlines
Thu 6/116:22 am
OAK
-
HLN
1 stop9h 10m
Alaska Airlines
Deal found 5/17$721
This Expedia deal was found by Cheapflights users on 5/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:09 pm
HLN
-
OAK
1 stop17h 17m
Alaska Airlines
Tue 6/166:22 am
OAK
-
HLN
1 stop9h 10m
Alaska Airlines
Deal found 5/18$756

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 May 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$365
(Alaska Airlines)

One-way from

$228
(Delta)
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

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 May 20, 2026.
Use the filters below to find and compare flights from Helena to Oakland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 10/24

4:48 pm-10:55 pm

1 stop7h 07m

Oakland

Wed 10/28

7:00 am-4:11 pm

1 stop8h 11m

$365

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 10/24

4:48 pm-10:55 pm

1 stop7h 07m

Oakland

Tue 10/27

12:05 pm-4:11 pm

2 stops27h 06m

$392
Quickest round-trip

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 9/24

5:18 pm-10:54 pm

1 stop6h 36m

Oakland

Sun 9/27

8:04 am-4:41 pm

2 stops7h 37m

$533

HelenaOakland

HLN - OAK

HLNOAK

Helena

Wed 7/8

5:09 pm-9:26 am

1 stop17h 17m

Oakland

Sun 7/12

6:22 am-4:32 pm

1 stop9h 10m

$561
Cheapest one-way
Quickest one-way

HelenaOakland

HLN - OAK

HLNOAK

Helena

Wed 8/12

12:55 pm-4:14 pm

1 stop4h 19m

$228

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 7/16

12:55 pm-4:21 pm

1 stop4h 26m

$237

HelenaOakland

HLN - OAK

HLNOAK

Helena

Fri 6/19

1:00 pm-4:23 pm

1 stop4h 23m

$237

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 6/27

7:00 am-11:53 am

1 stop5h 53m

$237

HelenaOakland

HLN - OAK

HLNOAK

Helena

Sat 8/15

12:55 pm-4:14 pm

1 stop4h 19m

$237

HelenaOakland

HLN - OAK

HLNOAK

Helena

Fri 7/10

5:09 pm-9:26 am

1 stop17h 17m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 11 resultsSorted by cheapest first
1
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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 May.
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.

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 07m. 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.

See more FAQs

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