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$352+ Cheap flights from Helena to Oakland, CA (HLN - OAK)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OAK
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap 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 July 3, 2025.

Round-trip from

$352
(Alaska Airlines)

Popular in

March

Cheapest in

May

Average price

$453
From Helena to Oakland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find 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 July 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/14:02 pmHLN - OAK
1 stop22h 34mAlaska Airlines
Mon 9/82:30 pmOAK - HLN
1 stop23h 51mAlaska Airlines
Deal found 6/30$352
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/155:50 amHLN - OAK
1 stop6h 55mDelta
Fri 7/254:55 pmOAK - HLN
1 stop4h 52mDelta
Deal found 7/1$468

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 July 3, 2025.
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

Mon 9/1

4:02 pm-1:36 pm

1 stop22h 34m

Oakland

Mon 9/8

2:30 pm-3:21 pm

1 stop23h 51m

$352

HelenaOakland

HLN - OAK

HLNOAK

Helena

Tue 7/15

5:50 am-11:45 am

1 stop6h 55m

Oakland

Fri 7/25

4:55 pm-10:47 pm

1 stop4h 52m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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, April is the cheapest month in which you can book a flight from Helena to Oakland, California (average of $183). Flying from Helena to Oakland, California in November is currently the most expensive (average of $259). 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 Oakland

Get insights into the airlines that provide service to Oakland. 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 Oakland. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Alaska Airlines and Delta from Helena to Oakland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Helena to Oakland, California round-trip?

    Alaska Airlines, at $352, was found to be the cheapest airline from Helena to Oakland, California. An alternate airline flying to your destination would be Delta.

  • 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, April is the cheapest month in which you can book a flight from Helena to Oakland, California (average of $183). Flying from Helena to Oakland, California in November is currently the most expensive (average of $259). 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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