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.

$185 Cheap Flights from Oakland to Helena in 2026

1 adult

0 bags

Find the cheapest flights from Oakland, California to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

1:03 pm - 4:25 pm

HLN

OAK

4h 22m

1 stop

$359Delta

Sun, May 24 - Tue, May 26

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

1:03 pm - 4:25 pm

HLN

OAK

4h 22m

1 stop

$369Delta

Sun, May 24 - Thu, May 28

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

5:45 am - 11:48 am

HLN

OAK

7h 03m

1 stop

$384Delta

Sat, May 23 - Wed, May 27

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

1:03 pm - 4:25 pm

HLN

OAK

4h 22m

1 stop

$394Delta

Sat, May 23 - Sun, May 24

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

5:45 am - 11:48 am

HLN

OAK

7h 03m

1 stop

$432Delta

Sun, May 24 - Fri, May 29

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

1:03 pm - 4:25 pm

HLN

OAK

4h 22m

1 stop

$434Delta

Fri, May 22 - Sat, May 23

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

1:03 pm - 4:25 pm

HLN

OAK

4h 22m

1 stop

$444Delta

Fri, May 22 - Thu, May 28

10:18 am - 4:34 pm

OAK

HLN

5h 16m

1 stop

5:11 pm - 10:54 pm

HLN

OAK

6h 43m

1 stop

$455Alaska Airlines

Tue, Sep 1 - Wed, Sep 2

6:00 am - 12:23 pm

OAK

HLN

5h 23m

1 stop

5:45 am - 11:48 am

HLN

OAK

7h 03m

1 stop

$457Delta

Sat, May 23 - Fri, May 29

7:00 am - 4:06 pm

OAK

HLN

8h 06m

1 stop

4:43 pm - 11:59 pm

HLN

OAK

8h 16m

1 stop

$464Alaska Airlines

Tue, May 19 - Fri, May 22

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Alaska Airlines flights from Oakland, California to Helena

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

Alaska Airlines

Sep 1

OAK10:18 amOakland

5h 16m

1 stop

HLN4:34 pmHelena

Sep 2

HLN5:11 pmHelena

6h 43m

1 stop

OAK10:54 pmOakland

$455

Alaska Airlines

May 19

OAK7:00 amOakland

8h 06m

1 stop

HLN4:06 pmHelena

May 22

HLN4:43 pmHelena

8h 16m

1 stop

OAK11:59 pmOakland

$464

Alaska Airlines

May 24

OAK10:35 amOakland

4h 31m

1 stop

HLN4:06 pmHelena

May 26

HLN4:43 pmHelena

22h 31m

2 stops

OAK2:14 pmOakland

$481

Delta flights from Oakland, California to Helena

Our best Delta deals on Oakland, California to Helena flight tickets

Delta

May 24

OAK6:00 amOakland

5h 23m

1 stop

HLN12:23 pmHelena

May 26

HLN1:03 pmHelena

4h 22m

1 stop

OAK4:25 pmOakland

$359

Delta

May 24

OAK6:00 amOakland

5h 23m

1 stop

HLN12:23 pmHelena

May 28

HLN1:03 pmHelena

4h 22m

1 stop

OAK4:25 pmOakland

$369

Delta

May 23

OAK6:00 amOakland

5h 23m

1 stop

HLN12:23 pmHelena

May 27

HLN5:45 amHelena

7h 03m

1 stop

OAK11:48 amOakland

$384

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

Cheapest round-trip

Quickest round-trip

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sun 5/24

6:00 am-12:23 pm

1 stop5h 23m

Helena

Tue 5/26

1:03 pm-4:25 pm

1 stop4h 22m

$359

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sun 5/24

6:00 am-12:23 pm

1 stop5h 23m

Helena

Thu 5/28

1:03 pm-4:25 pm

1 stop4h 22m

$369

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sat 5/23

6:00 am-12:23 pm

1 stop5h 23m

Helena

Wed 5/27

5:45 am-11:48 am

1 stop7h 03m

$384

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sat 5/23

6:00 am-12:23 pm

1 stop5h 23m

Helena

Sun 5/24

1:03 pm-4:25 pm

1 stop4h 22m

$394

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sun 5/24

6:00 am-12:23 pm

1 stop5h 23m

Helena

Fri 5/29

5:45 am-11:48 am

1 stop7h 03m

$432

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fri 5/22

6:00 am-12:23 pm

1 stop5h 23m

Helena

Sat 5/23

1:03 pm-4:25 pm

1 stop4h 22m

$434

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fri 5/22

6:00 am-12:23 pm

1 stop5h 23m

Helena

Thu 5/28

1:03 pm-4:25 pm

1 stop4h 22m

$444

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 9/1

10:18 am-4:34 pm

1 stop5h 16m

Helena

Wed 9/2

5:11 pm-10:54 pm

1 stop6h 43m

$455

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sat 5/23

6:00 am-12:23 pm

1 stop5h 23m

Helena

Fri 5/29

5:45 am-11:48 am

1 stop7h 03m

$457

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Tue 5/19

7:00 am-4:06 pm

1 stop8h 06m

Helena

Fri 5/22

4:43 pm-11:59 pm

1 stop8h 16m

$464

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

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 48% 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 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	4h 28m
Direct flights	None

The fastest flight from Oakland, California to Helena takes 4h 28m

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

Search flight deals

Frequently asked questions about flying from Oakland, California to Helena

How far is Oakland to Helena by plane?
There are 800.0 mi between Oakland and Helena. Typically, this will take 4h 28m 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.