What is the cheapest airline that flies from Oakland to Helena?

Delta and Alaska Airlines are the most popular carriers operating from Oakland to Helena

What airlines fly to Helena?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Helena from Oakland, California according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 7 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Oakland Airport to Helena Airport?

Prices for flights from Oakland Airport to Helena Airport are updated daily.

How old do you have to be to fly from Oakland Airport to Helena Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$270 Cheap Flights from Oakland to Helena in 2025/26

1 adult

0 bags

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Find the cheapest flights from Oakland, California to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:43 am - 6:11 pm

OAK

HLN

5h 28m1 stop

6:48 pm - 10:28 am

HLN

OAK

16h 40m1 stop

$270Alaska Airlines

mar., ene. 20 - mar., ene. 27

11:43 am - 6:11 pm

OAK

HLN

5h 28m1 stop

6:48 pm - 11:03 am

HLN

OAK

17h 15m1 stop

$290Alaska Airlines

jue., ene. 22 - dom., feb. 1

11:43 am - 6:11 pm

OAK

HLN

5h 28m1 stop

6:48 pm - 8:40 pm

HLN

OAK

26h 52m1 stop

$320Alaska Airlines

mar., feb. 3 - mié., feb. 4

11:43 am - 6:11 pm

OAK

HLN

5h 28m1 stop

6:48 pm - 9:46 am

HLN

OAK

15h 58m2 stops

$341Alaska Airlines

mar., feb. 3 - mié., feb. 4

8:10 am - 6:11 pm

OAK

HLN

9h 01m1 stop

6:48 pm - 8:40 pm

HLN

OAK

26h 52m1 stop

$352Alaska Airlines

mar., feb. 3 - mié., feb. 4

8:10 am - 6:11 pm

OAK

HLN

9h 01m1 stop

6:48 pm - 9:46 am

HLN

OAK

15h 58m2 stops

$373Alaska Airlines

mar., feb. 3 - mié., feb. 4

10:30 am - 6:11 pm

OAK

HLN

6h 41m2 stops

6:48 pm - 9:46 am

HLN

OAK

15h 58m2 stops

$398Alaska Airlines

mar., feb. 3 - mié., feb. 4

Alaska Airlines flights from Oakland, California to Helena

Our best Alaska Airlines deals on Oakland, California to Helena flight tickets

Alaska Airlines

Jan 20

OAK11:43 amOakland

5h 28m

1 stop

HLN6:11 pmHelena

Jan 27

HLN6:48 pmHelena

16h 40m

1 stop

OAK10:28 amOakland

$270

Find similar

Alaska Airlines

Jan 22

OAK11:43 amOakland

5h 28m

1 stop

HLN6:11 pmHelena

Feb 1

HLN6:48 pmHelena

17h 15m

1 stop

OAK11:03 amOakland

$290

Find similar

Alaska Airlines

Feb 3

OAK11:43 amOakland

5h 28m

1 stop

HLN6:11 pmHelena

Feb 4

HLN6:48 pmHelena

26h 52m

1 stop

OAK8:40 pmOakland

$320

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 1/20

11:43 am-6:11 pm

1 stop5h 28m

Helena

mar. 1/27

6:48 pm-10:28 am

1 stop16h 40m

$270

OaklandHelena

OAK - HLN

OAKHLN

Oakland

jue. 1/22

11:43 am-6:11 pm

1 stop5h 28m

Helena

dom. 2/1

6:48 pm-11:03 am

1 stop17h 15m

$290

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 2/3

11:43 am-6:11 pm

1 stop5h 28m

Helena

mié. 2/4

6:48 pm-8:40 pm

1 stop26h 52m

$320

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 2/3

11:43 am-6:11 pm

1 stop5h 28m

Helena

mié. 2/4

6:48 pm-9:46 am

2 stops15h 58m

$341

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 2/3

8:10 am-6:11 pm

1 stop9h 01m

Helena

mié. 2/4

6:48 pm-8:40 pm

1 stop26h 52m

$352

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 2/3

8:10 am-6:11 pm

1 stop9h 01m

Helena

mié. 2/4

6:48 pm-9:46 am

2 stops15h 58m

$373

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 2/3

10:30 am-6:11 pm

2 stops6h 41m

Helena

mié. 2/4

6:48 pm-9:46 am

2 stops15h 58m

$398

OaklandHelena

OAK - HLN

OAKHLN

Oakland

lun. 12/29

4:50 pm-10:30 pm

1 stop4h 40m

$450

OaklandHelena

OAK - HLN

OAKHLN

Oakland

lun. 12/29

9:35 am-5:55 pm

2 stops31h 20m

$538

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Oakland, California to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Helena?

The cheapest day to depart from Oakland, California to Helena is on a Monday. Travelers who choose to depart for Helena on a Monday will often find tickets for as low as $350. The most expensive day to fly to Helena is Sunday, with ticket prices averaging around $706.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the afternoon. momondo users have found flights departing from Oakland, California to Helena in the afternoon for as low as $386. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is at noon when prices are around $950.

When to book flights from Oakland, California to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Oakland, California to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Oakland, California to Helena (OAK to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oakland, California to Helena

Fastest flight time	5h 24m
Direct flights	None

The fastest flight from Oakland, California to Helena takes 5h 24m

There are no direct flights from Oakland, California to Helena. There are no popular flight routes from Oakland, California to Helena.

Search flight deals

How far is Oakland to Helena by plane?
There are 800.0 mi between Oakland and Helena. Typically, this will take 5h 24m by plane in normal conditions.
When did momondo last update prices for flights from Oakland Airport to Helena Airport?
Prices for flights from Oakland Airport to Helena Airport are updated daily.
How old do you have to be to fly from Oakland Airport to Helena Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Oakland to Helena?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oakland to Helena. momondo saves you time and could save you money on your trip.

Can I find flights from Oakland to Helena with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Oakland to Helena flights to just show those with flexible booking policies.

How can momondo help me find flights from Oakland to Helena?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Helena from Oakland.

I’m not ready to book a flight from Oakland to Helena right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Helena from Oakland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.