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.

$232 Cheap Flights from Oakland, California to Helena in 2026/27

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.

7:02 am - 4:04 pmOAK Oakland-HLN Helena

8h 02m1 stop Seattle/Tacoma Intl

4:41 pm - 10:40 pmHLN Helena-OAK Oakland

6h 59m1 stop Seattle/Tacoma Intl

$293Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

7:02 am - 4:04 pmOAK Oakland-HLN Helena

8h 02m1 stop Seattle/Tacoma Intl

4:41 pm - 6:12 pmHLN Helena-OAK Oakland

26h 31m2 stops Seattle/Tacoma Intl San Diego

$341Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

7:00 am - 3:31 pmOAK Oakland-HLN Helena

7h 31m1 stop Seattle/Tacoma Intl

4:08 pm - 11:11 amHLN Helena-OAK Oakland

20h 03m1 stop Seattle/Tacoma Intl

$383Alaska Airlines

Thu, Dec 3 - Sun, Dec 6

7:02 am - 4:04 pmOAK Oakland-HLN Helena

8h 02m1 stop Seattle/Tacoma Intl

4:41 pm - 10:40 pmHLN Helena-OAK Oakland

6h 59m1 stop Seattle/Tacoma Intl

$384Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

6:12 am - 4:04 pmOAK Oakland-HLN Helena

8h 52m2 stops San Diego Seattle/Tacoma Intl

4:41 pm - 11:19 pmHLN Helena-OAK Oakland

31h 38m2 stops Seattle/Tacoma Intl San Diego

$389Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

7:02 am - 4:04 pmOAK Oakland-HLN Helena

8h 02m1 stop Seattle/Tacoma Intl

4:41 pm - 10:40 pmHLN Helena-OAK Oakland

6h 59m1 stop Seattle/Tacoma Intl

$393Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

7:02 am - 4:49 pmOAK Oakland-HLN Helena

8h 47m1 stop Seattle/Tacoma Intl

5:26 pm - 6:54 pmHLN Helena-OAK Oakland

26h 28m1 stop Seattle/Tacoma Intl

$408Alaska Airlines

Sat, Oct 24 - Mon, Oct 26

7:02 am - 4:04 pmOAK Oakland-HLN Helena

8h 02m1 stop Seattle/Tacoma Intl

4:41 pm - 4:33 pmHLN Helena-OAK Oakland

24h 52m2 stops Seattle/Tacoma Intl Portland

$415Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

7:46 pm - 4:04 pmOAK Oakland-HLN Helena

19h 18m1 stop Seattle/Tacoma Intl

4:41 pm - 6:50 pmHLN Helena-OAK Oakland

27h 09m1 stop Seattle/Tacoma Intl

$418Alaska Airlines

Mon, Nov 16 - Wed, Nov 18

6:12 am - 4:04 pmOAK Oakland-HLN Helena

8h 52m2 stops San Diego Seattle/Tacoma Intl

4:41 pm - 10:40 pmHLN Helena-OAK Oakland

6h 59m1 stop Seattle/Tacoma Intl

$423Alaska Airlines

Sat, Nov 7 - Wed, Nov 11

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

Nov 7

OAK7:02 amOakland

8h 02m

1 stop

HLN4:04 pmHelena

Nov 11

HLN4:41 pmHelena

6h 59m

1 stop

OAK10:40 pmOakland

$293

Alaska Airlines

Nov 7

OAK7:02 amOakland

8h 02m

1 stop

HLN4:04 pmHelena

Nov 11

HLN4:41 pmHelena

26h 31m

2 stops

OAK6:12 pmOakland

$341

Alaska Airlines

Dec 3

OAK7:00 amOakland

7h 31m

1 stop

HLN3:31 pmHelena

Dec 6

HLN4:08 pmHelena

20h 03m

1 stop

OAK11:11 amOakland

$383

Delta flights from Oakland, California to Helena

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

Delta

Nov 20

OAK5:55 amOakland

5h 32m

1 stop

HLN12:27 pmHelena

Nov 24

HLN1:07 pmHelena

11h 48m

1 stop

OAK11:55 pmOakland

$585

Delta

Nov 20

OAK5:55 amOakland

5h 32m

1 stop

HLN12:27 pmHelena

Nov 24

HLN1:07 pmHelena

11h 48m

1 stop

OAK11:55 pmOakland

$615

Delta

Sep 22

OAK6:00 amOakland

5h 17m

1 stop

HLN12:17 pmHelena

Sep 26

HLN7:15 amHelena

5h 44m

1 stop

OAK11:59 amOakland

$965

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 Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

7:02 am-4:04 pm

1 stop8h 02m

Helena

Wed 11/11

4:41 pm-10:40 pm

1 stop6h 59m

$293

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

7:02 am-4:04 pm

1 stop8h 02m

Helena

Wed 11/11

4:41 pm-6:12 pm

2 stops26h 31m

$341

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Thu 12/3

7:00 am-3:31 pm

1 stop7h 31m

Helena

Sun 12/6

4:08 pm-11:11 am

1 stop20h 03m

$383

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

7:02 am-4:04 pm

1 stop8h 02m

Helena

Wed 11/11

4:41 pm-10:40 pm

1 stop6h 59m

$384

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

6:12 am-4:04 pm

2 stops8h 52m

Helena

Wed 11/11

4:41 pm-11:19 pm

2 stops31h 38m

$389

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

7:02 am-4:04 pm

1 stop8h 02m

Helena

Wed 11/11

4:41 pm-10:40 pm

1 stop6h 59m

$393

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 10/24

7:02 am-4:49 pm

1 stop8h 47m

Helena

Mon 10/26

5:26 pm-6:54 pm

1 stop26h 28m

$408

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

7:02 am-4:04 pm

1 stop8h 02m

Helena

Wed 11/11

4:41 pm-4:33 pm

2 stops24h 52m

$415

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Mon 11/16

7:46 pm-4:04 pm

1 stop19h 18m

Helena

Wed 11/18

4:41 pm-6:50 pm

1 stop27h 09m

$418

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 11/7

6:12 am-4:04 pm

2 stops8h 52m

Helena

Wed 11/11

4:41 pm-10:40 pm

1 stop6h 59m

$423

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 45% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 4 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

Best Price Found	$232
Fastest flight time	4h 22m
Direct flights	None

The best one-way flight to Helena from Oakland, California in the past 72 hours is $232. The best round-trip flight deal from Oakland, California to Helena found on momondo in the last 72 hours is $293.

The fastest flight from Oakland, California to Helena takes 4h 22m

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 22m 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.