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

Departing from Oakland, California to Helena will take you 7h 38m. Airlines will cover a distance of 806 mi.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

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

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

Most accurate provider : When it comes to deals on Oakland, California-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oakland, California-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oakland, California-Helena flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Oakland, California-Helena 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 Oakland, California-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Oakland to Helena?

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

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

Yes. Cheapflights offers flight deals from Oakland to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$456+ Cheap Flights from Oakland, CA to Helena

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Cheap flight deals from Oakland to Helena

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$531 (Alaska Airlines)
Popular in	March
Cheapest in	October
Average price	$292

Provider with most accurate pricing for Oakland-Helena flight deals.

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Provider most trusted by Cheapflights users for Oakland-Helena flights.

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From Oakland to Helena

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Highest demand for flights based on searches. 30% potential increase in price ($240 potential increase over avg. RT price).

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Cheapest flight prices on average. 10% potential price decrease ($54 potential savings vs. average RT price).

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Average for round-trip flights in October 2025

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Find flight deals from Oakland to Helena

Cheapest flights from Oakland to Helena
Explore the most affordable flight options available from Oakland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Fri 11/1411:05 amOAK - HLN

1 stop5h 31mAlaska Airlines

Tue 11/186:13 pmHLN - OAK

1 stop17h 12mAlaska Airlines

Deal found 10/29

$531

Thu 11/136:30 amOAK - HLN

1 stop10h 06mAlaska Airlines

Sun 11/166:13 pmHLN - OAK

1 stop6h 46mAlaska Airlines

Deal found 10/29

$578

Best flights from Oakland to Helena
Discover carefully curated flight deals from Oakland to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

Thu 4/237:00 amOAK - HLN

1 stop7h 38mAlaska Airlines

Sun 4/264:10 pmHLN - OAK

1 stop26h 28mAlaska Airlines

Deal found 10/30

$456

Fri 11/1411:05 amOAK - HLN

1 stop5h 31mAlaska Airlines

Tue 11/186:13 pmHLN - OAK

1 stop17h 12mAlaska Airlines

Deal found 10/29

$531

Thu 11/136:30 amOAK - HLN

1 stop10h 06mAlaska Airlines

Sun 11/166:13 pmHLN - OAK

1 stop6h 46mAlaska Airlines

Deal found 10/29

$578

Last-minute flights from Oakland to Helena
Discover last-minute flight deals from Oakland to Helena. Data last updated October 30, 2025 and is based on user searches.

Thu 11/136:30 amOAK - HLN

1 stop10h 06mAlaska Airlines

Sun 11/166:13 pmHLN - OAK

1 stop6h 46mAlaska Airlines

Deal found 10/29

$578

Fri 11/1411:05 amOAK - HLN

1 stop5h 31mAlaska Airlines

Tue 11/186:13 pmHLN - OAK

1 stop17h 12mAlaska Airlines

Deal found 10/29

$531

Fly from

Fly to

Route

Depart

Return

Price

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Thu 4/23

7:00 am-3:38 pm

1 stop7h 38m

Helena

Sun 4/26

4:10 pm-5:38 pm

1 stop26h 28m

$456

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fri 11/14

11:05 am-5:36 pm

1 stop5h 31m

Helena

Tue 11/18

6:13 pm-10:25 am

1 stop17h 12m

$531

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Thu 11/13

6:30 am-5:36 pm

1 stop10h 06m

Helena

Sun 11/16

6:13 pm-11:59 pm

1 stop6h 46m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Most accurate provider: When it comes to deals on Oakland, California-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oakland, California-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oakland, California-Helena flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Oakland, California-Helena 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 Oakland, California-Helena 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 Oakland to Helena

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

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

Currently, August is the cheapest month in which you can book a flight from Oakland, California to Helena (average of $44). Flying from Oakland, California to Helena in May is currently the most expensive (average of $219). 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 Oakland, California to Helena?
Departing from Oakland, California to Helena will take you 7h 38m. Airlines will cover a distance of 806 mi.
Can I find deals for flights from Oakland to Helena that include hotel bookings?
Yes. In addition to deals on Oakland to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oakland to Helena?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Helena.
Can I find deals for business class flights from Oakland to Helena?
Yes. Cheapflights offers flight deals from Oakland to Helena 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 Oakland, California to Helena?
Currently, August is the cheapest month in which you can book a flight from Oakland, California to Helena (average of $44). Flying from Oakland, California to Helena in May is currently the most expensive (average of $219). 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.

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$456+ Cheap flights from Oakland, CA to Helena (OAK - HLN)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oakland to Helena with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Oakland to Helena

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Oakland to Helena

Cheapest flights from Oakland to HelenaExplore the most affordable flight options available from Oakland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Explore the most affordable flight options available from Oakland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Oakland to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Oakland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Oakland to Helena

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

Related info for your journey

Find useful and relevant information for your journey from Oakland to Helena. 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 Oakland, California to Helena?

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

How can I find direct flights from Oakland to Helena?

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

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

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Cheapest flights from Oakland to Helena
Explore the most affordable flight options available from Oakland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.