$264+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — OAK
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
One-way
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 17, 2026.
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 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 12/54:55 pm -
1 stop20h 45m
Wed 12/91:36 pm -
1 stop25h 42m
Deal found 9/16![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 9/255:18 pm -
1 stop6h 36m
Sun 9/2710:11 am -
1 stop5h 30m
Deal found 9/13![Alaska Airlines logo]()
$884
Best flights from Helena to OaklandDiscover 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 17, 2026.
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 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 1/225:00 pm -
1 stop25h 52m
Sun 1/246:03 am -
2 stops9h 20m
Deal found 9/16![Alaska Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 12/54:55 pm -
1 stop20h 45m
Wed 12/91:36 pm -
1 stop25h 42m
Deal found 9/16![Alaska Airlines logo]()
$443
Last-minute flights from Helena to OaklandDiscover last-minute flight deals from Helena to Oakland. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Oakland. Data last updated September 17, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 9/235:18 pm -
1 stop6h 36m
Fri 9/251:29 pm -
2 stops26h 12m
Deal found 9/14![Alaska Airlines logo]()
$1,087
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 9/255:18 pm -
1 stop6h 36m
Sun 9/2710:11 am -
1 stop5h 30m
Deal found 9/13![Alaska Airlines logo]()
$884
One-way flights from Helena to OaklandSearch for one-way flight options from Helena to Oakland. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Helena to Oakland. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 10/65:26 pm -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Alaska Airlines logo]()
$264
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 10/125:26 pm -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Alaska Airlines logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 10/85:26 pm -
2 stops29h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Alaska Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 10/91:08 pm -
1 stop4h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 10/75:26 pm -
2 stops31h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Alaska Airlines logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 10/105:26 pm -
2 stops31h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Alaska Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/95:26 pm -
1 stop26h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/12. 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.
Sun 10/111:08 pm -
1 stop4h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Delta logo]()
$440
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $428 (Alaska Airlines) |
One-way from | $264 (Alaska Airlines) |
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 7,457,451 searches. Data last updated September 17, 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
Cheapest round-trip
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Wed 10/7
5:26 pm-10:55 pm
1 stop6h 29m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Thu 10/8
5:26 pm-10:55 pm
1 stop6h 29m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Mon 10/12
5:26 pm-10:55 pm
1 stop6h 29m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$274
Quickest round-trip
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Fri 10/9
1:08 pm-4:22 pm
1 stop4h 14m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$380
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Sat 10/10
5:26 pm-11:42 pm
2 stops31h 16m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$413
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Fri 10/9
5:26 pm-6:54 pm
1 stop26h 28m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$429
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Fri 1/22
5:00 pm-5:52 pm
1 stop25h 52m
Oakland
Sun 1/24
6:03 am-4:23 pm
2 stops9h 20m
$433
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Sun 10/11
1:08 pm-4:22 pm
1 stop4h 14m
Oakland
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$440
HelenaOakland
HLN Helena - OAK Oakland
HLNOAK
Helena
Sat 12/5
4:55 pm-12:40 pm
1 stop20h 45m
Oakland
Wed 12/9
1:36 pm-4:18 pm
1 stop25h 42m
$443
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
HLN-OAK
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.
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