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Helena

$283+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — HLN
Mar 2 — Mar 91
Mon 3/2
Mon 3/9
1 adult, Economy
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Cheap 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 January 31, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 3/106:15 am
OAK
-
HLN
1 stop8h 44m
Alaska Airlines
Wed 3/114:36 pm
HLN
-
OAK
1 stop8h 22m
Alaska Airlines
Deal found 1/28$283
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 3/49:54 am
OAK
-
HLN
1 stop5h 05m
Alaska Airlines
Mon 3/94:36 pm
HLN
-
OAK
1 stop25h 01m
Alaska Airlines
Deal found 1/29$299
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 3/49:54 am
OAK
-
HLN
1 stop5h 05m
Alaska Airlines
Sun 3/84:36 pm
HLN
-
OAK
1 stop25h 01m
Alaska Airlines
Deal found 1/29$304
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 3/66:15 am
OAK
-
HLN
1 stop8h 44m
Alaska Airlines
Sun 3/84:36 pm
HLN
-
OAK
1 stop25h 01m
Alaska Airlines
Deal found 1/29$343
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 3/65:03 pm
OAK
-
HLN
2 stops21h 56m
Alaska Airlines
Mon 3/94:36 pm
HLN
-
OAK
2 stops17h 48m
Alaska Airlines
Deal found 1/29$393
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 3/55:03 pm
OAK
-
HLN
2 stops21h 56m
Alaska Airlines
Sun 3/84:36 pm
HLN
-
OAK
1 stop25h 01m
Alaska Airlines
Deal found 1/29$397

Find flight deals from Oakland to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) to Helena (HLN). 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 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$283
(Alaska Airlines)

Popular in

March

Cheapest in

October

Average price

$489
Provider with most accurate pricing for Oakland-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oakland-Helena flights.
Search Deals
From Oakland to Helena
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland to Helena 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 31, 2026.
Use the filters below to find and compare flights from Oakland to Helena that are best for you.

Fly from

Oakland

Fly to

Helena

Route

Depart

Return

Price

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 3/10

6:15 am-3:59 pm

1 stop8h 44m

Helena

Wed 3/11

4:36 pm-11:58 pm

1 stop8h 22m

$283

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Wed 3/4

9:54 am-3:59 pm

1 stop5h 05m

Helena

Mon 3/9

4:36 pm-4:37 pm

1 stop25h 01m

$299

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Wed 3/4

9:54 am-3:59 pm

1 stop5h 05m

Helena

Sun 3/8

4:36 pm-4:37 pm

1 stop25h 01m

$304

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Thu 3/5

6:15 am-3:59 pm

1 stop8h 44m

Helena

Mon 3/9

4:36 pm-9:14 am

1 stop17h 38m

$338

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fri 3/6

6:15 am-3:59 pm

1 stop8h 44m

Helena

Mon 3/9

4:36 pm-4:37 pm

1 stop25h 01m

$338

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fri 3/6

5:03 pm-3:59 pm

2 stops21h 56m

Helena

Sun 3/8

4:36 pm-4:37 pm

1 stop25h 01m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

  • 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 December 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 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?

    Departing from Oakland, California to Helena will take you 8h 44m. 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 December 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

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