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 36% 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.

$278 Cheap Flights from Oakland to Helena in 2025

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Find the cheapest flights from Oakland, California to Helena

Round-trip

One-way

Cheap round-trip flights

7:58 pm - 3:21 pmOAK-HLN

18h 23m1 stop

4:02 pm - 8:59 amHLN-OAK

17h 57m2 stops

$433Alaska Airlines

Find Deal

sáb., sep. 13 - lun., sep. 15

7:58 pm - 3:21 pmOAK-HLN

18h 23m1 stop

4:02 pm - 8:59 amHLN-OAK

17h 57m2 stops

$493Alaska Airlines

Find Deal

vie., sep. 12 - lun., sep. 15

6:15 am - 3:21 pmOAK-HLN

8h 06m1 stop

4:02 pm - 10:21 amHLN-OAK

19h 19m1 stop

$498Alaska Airlines

Find Deal

jue., sep. 11 - lun., sep. 15

7:07 pm - 3:21 pmOAK-HLN

19h 14m2 stops

4:02 pm - 8:59 amHLN-OAK

17h 57m2 stops

$547Alaska Airlines

Find Deal

vie., sep. 12 - lun., sep. 15

9:39 am - 3:21 pmOAK-HLN

4h 42m1 stop

4:02 pm - 12:04 amHLN-OAK

9h 02m1 stop

$754Alaska Airlines

Find Deal

sáb., sep. 13 - dom., sep. 14

6:15 am - 6:52 pmOAK-HLN

11h 37m1 stop

7:32 pm - 8:50 amHLN-OAK

14h 18m2 stops

$777Alaska Airlines

Find Deal

sáb., nov. 22 - dom., nov. 30

8:00 am - 3:21 pmOAK-HLN

6h 21m2 stops

4:02 pm - 10:03 pmHLN-OAK

7h 01m1 stop

$809Alaska Airlines

Find Deal

jue., sep. 11 - lun., sep. 15

9:39 am - 3:21 pmOAK-HLN

4h 42m1 stop

4:02 pm - 10:03 pmHLN-OAK

7h 01m1 stop

$817Alaska Airlines

Find Deal

vie., sep. 12 - dom., sep. 14

Alaska Airlines flights from Oakland, California to Helena

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

Alaska Airlines

Sep 13

OAK7:58 pmOakland

18h 23m

1 stop

HLN3:21 pmHelena

Sep 15

HLN4:02 pmHelena

17h 57m

2 stops

OAK8:59 amOakland

$433

Find similar

Alaska Airlines

Sep 12

OAK7:58 pmOakland

18h 23m

1 stop

HLN3:21 pmHelena

Sep 15

HLN4:02 pmHelena

17h 57m

2 stops

OAK8:59 amOakland

$493

Find similar

Alaska Airlines

Sep 11

OAK6:15 amOakland

8h 06m

1 stop

HLN3:21 pmHelena

Sep 15

HLN4:02 pmHelena

19h 19m

1 stop

OAK10:21 amOakland

$498

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

sáb. 9/13

7:58 pm-3:21 pm

1 stop18h 23m

Helena

lun. 9/15

4:02 pm-8:59 am

2 stops17h 57m

$433

OaklandHelena

OAK - HLN

OAKHLN

Oakland

vie. 9/12

7:58 pm-3:21 pm

1 stop18h 23m

Helena

lun. 9/15

4:02 pm-8:59 am

2 stops17h 57m

$493

OaklandHelena

OAK - HLN

OAKHLN

Oakland

jue. 9/11

6:15 am-3:21 pm

1 stop8h 06m

Helena

lun. 9/15

4:02 pm-10:21 am

1 stop19h 19m

$498

OaklandHelena

OAK - HLN

OAKHLN

Oakland

vie. 9/12

7:07 pm-3:21 pm

2 stops19h 14m

Helena

lun. 9/15

4:02 pm-8:59 am

2 stops17h 57m

$547

OaklandHelena

OAK - HLN

OAKHLN

Oakland

sáb. 9/13

9:39 am-3:21 pm

1 stop4h 42m

Helena

dom. 9/14

4:02 pm-12:04 am

1 stop9h 02m

$754

OaklandHelena

OAK - HLN

OAKHLN

Oakland

sáb. 11/22

6:15 am-6:52 pm

1 stop11h 37m

Helena

dom. 11/30

7:32 pm-8:50 am

2 stops14h 18m

$777

OaklandHelena

OAK - HLN

OAKHLN

Oakland

jue. 9/11

8:00 am-3:21 pm

2 stops6h 21m

Helena

lun. 9/15

4:02 pm-10:03 pm

1 stop7h 01m

$809

OaklandHelena

OAK - HLN

OAKHLN

Oakland

vie. 9/12

9:39 am-3:21 pm

1 stop4h 42m

Helena

dom. 9/14

4:02 pm-10:03 pm

1 stop7h 01m

$817

OaklandHelena

OAK - HLN

OAKHLN

Oakland

jue. 9/11

6:00 am-12:20 pm

1 stop5h 20m

$278

OaklandHelena

OAK - HLN

OAKHLN

Oakland

mar. 9/2

6:00 am-12:20 pm

1 stop5h 20m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted 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

Direct flights	None

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 4h 42m 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.