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

There are many flights that can get you from Helena to Oakland, California in 4h 44m. Fly via Alaska Airlines, Delta, or Hawaiian Airlines to get the fastest option. Airlines will cover a distance of 806 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Oakland, California ranges from 0.0 - 4.8 inches per month. January is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Oakland, California when rainfall is around 0.0 in.

If weather is an important factor for your trip to Oakland, California, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What is the cheapest month to fly from Helena to Oakland, California?

Our data shows that May tends to be the cheapest month to fly to Oakland, California from Helena. Users have commonly found prices around $405 for the month, but tickets can be as low as $246. Due to multiple factors, prepare for potentially higher prices in July.

What is the cheapest time of day to fly from HLN to OAK?

When flying from Helena to Oakland, California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$371+ Flights from Helena to Oakland, CA

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Helena to Oakland 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 Oakland

Round-trip from	$371 (Alaska Airlines)
Popular in	July
Cheapest in	May
Average price	$264

From Helena to Oakland

Search Deals

Highest demand for flights based on searches. 27% potential increase in price ($156 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 September 11, 2025.

Fri 10/176:18 pmHLN - OAK

1 stop6h 45mAlaska Airlines

Mon 10/208:05 pmOAK - HLN

1 stop20h 36mAlaska Airlines

Deal found 9/10

$371

Thu 9/114:02 pmHLN - OAK

1 stop9h 02mAlaska Airlines

Wed 9/177:58 pmOAK - HLN

1 stop18h 23mAlaska Airlines

Deal found 9/11

$932

Best flights from Helena to Oakland
Discover carefully curated flight deals from Helena to Oakland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Fri 10/176:18 pmHLN - OAK

1 stop6h 45mAlaska Airlines

Mon 10/208:05 pmOAK - HLN

1 stop20h 36mAlaska Airlines

Deal found 9/10

$371

Thu 3/512:50 pmHLN - OAK

1 stop4h 44mDelta

Mon 3/95:55 amOAK - HLN

1 stop5h 32mDelta

Deal found 9/9

$409

Thu 3/54:10 pmHLN - OAK

1 stop8h 28mHawaiian Airlines

Mon 3/96:30 amOAK - HLN

1 stop8h 13mHawaiian Airlines

Deal found 9/10

$443

Thu 3/54:10 pmHLN - OAK

1 stop8h 28mAlaska Airlines

Mon 3/96:45 pmOAK - HLN

2 stops19h 58mAlaska Airlines

Deal found 9/10

$468

Last-minute flights from Helena to Oakland
Discover last-minute flight deals from Helena to Oakland. Data last updated September 11, 2025 and is based on user searches.

Thu 9/114:02 pmHLN - OAK

1 stop9h 02mAlaska Airlines

Wed 9/177:58 pmOAK - HLN

1 stop18h 23mAlaska Airlines

Deal found 9/11

$932

Fri 10/176:18 pmHLN - OAK

1 stop6h 45mAlaska Airlines

Mon 10/208:05 pmOAK - HLN

1 stop20h 36mAlaska Airlines

Deal found 9/10

$371

Fly from

Fly to

Route

Depart

Return

Price

HelenaOakland

HLN - OAK

HLNOAK

Helena

Fri 10/17

6:18 pm-12:03 am

1 stop6h 45m

Oakland

Mon 10/20

8:05 pm-5:41 pm

1 stop20h 36m

$371

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 3/5

12:50 pm-4:34 pm

1 stop4h 44m

Oakland

Mon 3/9

5:55 am-12:27 pm

1 stop5h 32m

$409

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 3/5

4:10 pm-11:38 pm

1 stop8h 28m

Oakland

Mon 3/9

6:30 am-3:43 pm

1 stop8h 13m

$443

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 3/5

4:10 pm-11:38 pm

1 stop8h 28m

Oakland

Mon 3/9

6:45 pm-3:43 pm

2 stops19h 58m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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.

Related info for your journey

How long is the flight from Helena to Oakland, California?
There are many flights that can get you from Helena to Oakland, California in 4h 44m. Fly via Alaska Airlines, Delta, or Hawaiian Airlines to get the fastest option. Airlines will cover a distance of 806 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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

Browse thousands of different options on Cheapflights for your next trip

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.

$371+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helena to Oakland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Helena to Oakland

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Helena to Oakland

Cheapest flights from Helena to OaklandExplore 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

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

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.

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?

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?

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

How can I find direct flights from Helena to Oakland?

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

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

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 Oakland

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 September 11, 2025.