HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oakland

$288+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OAK
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$288
(Alaska Airlines)

Popular in

July

Cheapest in

December

Average price

$248
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
Highest demand for flights based on searches. 34% potential increase in price ($196 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 January 2026
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 January 15, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/13. 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 2/36:48 pm
HLN
-
OAK
2 stops15h 58m
Alaska Airlines
Sat 2/78:10 am
OAK
-
HLN
1 stop9h 01m
Alaska Airlines
Deal found 1/13$288
This Delta deal was found by Cheapflights users on 1/14. 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.
Thu 3/265:30 am
HLN
-
OAK
1 stop7h 21m
Delta
Sun 3/295:55 am
OAK
-
HLN
1 stop5h 24m
Delta
Deal found 1/14$307
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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 2/46:48 pm
HLN
-
OAK
2 stops15h 58m
Alaska Airlines
Sat 2/78:10 am
OAK
-
HLN
1 stop9h 01m
Alaska Airlines
Deal found 1/14$315
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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 2/124:36 pm
HLN
-
OAK
1 stop7h 13m
Alaska Airlines
Thu 2/196:15 am
OAK
-
HLN
1 stop8h 44m
Alaska Airlines
Deal found 1/14$403
This Travelocity deal was found by Cheapflights users on 1/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:22 pm
HLN
-
OAK
1 stop6h 21m
Alaska Airlines
Sun 3/298:10 pm
OAK
-
HLN
2 stops20h 35m
Alaska Airlines
Deal found 1/14$676

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 January 15, 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 2/3

6:48 pm-9:46 am

2 stops15h 58m

Oakland

Sat 2/7

8:10 am-6:11 pm

1 stop9h 01m

$288

HelenaOakland

HLN - OAK

HLNOAK

Helena

Wed 2/4

6:48 pm-9:46 am

2 stops15h 58m

Oakland

Sat 2/7

8:10 am-6:11 pm

1 stop9h 01m

$315

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 2/12

4:36 pm-10:49 pm

1 stop7h 13m

Oakland

Thu 2/19

6:15 am-3:59 pm

1 stop8h 44m

$403

HelenaOakland

HLN - OAK

HLNOAK

Helena

Thu 3/26

6:22 pm-11:43 pm

1 stop6h 21m

Oakland

Sun 3/29

8:10 pm-5:45 pm

2 stops20h 35m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-Oakland, California flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $228). 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 21m. Fly via Alaska Airlines or Delta 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, 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 $228). 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

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.
Bozeman to Las Vegas flights
Missoula to Las Vegas flights
Bozeman to San Francisco flights
Bozeman to Los Angeles flights
Bozeman to San Diego flights
Helena to Las Vegas flights
Kalispell to Los Angeles flights
Missoula to Los Angeles flights
Billings to Los Angeles flights
Billings to Las Vegas flights
Billings to San Francisco flights
Missoula to San Francisco flights
Missoula to San Diego flights
Bozeman to Santa Ana flights
Missoula to Sacramento flights
Billings to Sacramento flights
Butte to Las Vegas flights
Kalispell to Ontario flights
Kalispell to Santa Ana flights
Kalispell to San Diego flights
Bozeman to Palm Springs flights
Great Falls to Las Vegas flights
Bozeman to Ontario flights
Missoula to Oakland flights
Billings to San Diego flights
Kalispell to Las Vegas flights
Great Falls to Burbank flights
Missoula to Palm Springs flights
Kalispell to San Francisco flights
Missoula to Santa Ana flights
Missoula to Ontario flights
Billings to Ontario flights
Billings to Santa Ana flights
Helena to San Diego flights
Bozeman to Reno flights
Kalispell to Palm Springs flights
Kalispell to Sacramento flights
Missoula to Burbank flights
Billings to Palm Springs flights
Helena to Los Angeles flights
Great Falls to San Diego flights
Missoula to Reno flights
Bozeman to San Jose flights
Bozeman to Burbank flights
Great Falls to Reno flights
Billings to Burbank flights
Billings to Reno flights
Billings to San Jose flights
Bozeman to Long Beach flights
Great Falls to San Francisco flights

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.