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.

$136 Cheap Flights from Oakland to Helena in 2026

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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.

2:09 pm - 5:45 pm

OAK

HLN

26h 36m

1 stop

6:22 pm - 10:32 pm

HLN

OAK

5h 10m

1 stop

$262Alaska Airlines

Di, Apr 28 - Sa, Mai 2

2:09 pm - 5:45 pm

OAK

HLN

26h 36m

1 stop

6:22 pm - 10:32 pm

HLN

OAK

5h 10m

1 stop

$267Alaska Airlines

Di, Apr 28 - Sa, Mai 2

2:09 pm - 5:45 pm

OAK

HLN

26h 36m

1 stop

6:22 pm - 10:32 pm

HLN

OAK

5h 10m

1 stop

$272Alaska Airlines

Di, Apr 28 - Sa, Mai 2

3:18 pm - 5:45 pm

OAK

HLN

25h 27m

2 stops

6:22 pm - 10:32 pm

HLN

OAK

5h 10m

1 stop

$302Alaska Airlines

Di, Apr 28 - Sa, Mai 2

7:19 pm - 5:45 pm

OAK

HLN

21h 26m

2 stops

6:22 pm - 10:32 pm

HLN

OAK

5h 10m

1 stop

$307Alaska Airlines

Di, Apr 28 - Sa, Mai 2

10:20 am - 4:49 pm

OAK

HLN

5h 29m

1 stop

5:26 pm - 10:59 pm

HLN

OAK

6h 33m

1 stop

$371Alaska Airlines

Mi, Jul 8 - Do, Jul 16

3:18 pm - 5:45 pm

OAK

HLN

25h 27m

2 stops

6:22 pm - 10:17 am

HLN

OAK

40h 55m

2 stops

$387Alaska Airlines

Di, Apr 28 - Sa, Mai 2

5:05 pm - 10:34 pm

OAK

HLN

4h 29m

1 stop

12:50 pm - 4:31 pm

HLN

OAK

4h 41m

1 stop

$391Delta

Fr, Jun 12 - Mi, Jun 17

7:19 pm - 5:45 pm

OAK

HLN

21h 26m

2 stops

6:22 pm - 10:17 am

HLN

OAK

40h 55m

2 stops

$397Alaska Airlines

Di, Apr 28 - Sa, Mai 2

5:55 am - 12:23 pm

OAK

HLN

5h 28m

1 stop

12:50 pm - 4:31 pm

HLN

OAK

4h 41m

1 stop

$403Delta

Sa, Jun 27 - Di, Jun 30

Alaska Airlines flights from Oakland, California to Helena

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

Alaska Airlines

Apr 28

OAK2:09 pmOakland

26h 36m

1 stop

HLN5:45 pmHelena

May 2

HLN6:22 pmHelena

5h 10m

1 stop

OAK10:32 pmOakland

$254

Alaska Airlines

Apr 28

OAK2:09 pmOakland

26h 36m

1 stop

HLN5:45 pmHelena

May 2

HLN6:22 pmHelena

5h 10m

1 stop

OAK10:32 pmOakland

$262

Alaska Airlines

Apr 28

OAK2:09 pmOakland

26h 36m

1 stop

HLN5:45 pmHelena

May 2

HLN6:22 pmHelena

5h 10m

1 stop

OAK10:32 pmOakland

$267

Delta flights from Oakland, California to Helena

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

Delta

Jun 12

OAK5:05 pmOakland

4h 29m

1 stop

HLN10:34 pmHelena

Jun 17

HLN12:50 pmHelena

4h 41m

1 stop

OAK4:31 pmOakland

$391

Delta

Jun 27

OAK5:55 amOakland

5h 28m

1 stop

HLN12:23 pmHelena

Jun 30

HLN12:50 pmHelena

4h 41m

1 stop

OAK4:31 pmOakland

$403

Delta

Jun 27

OAK5:55 amOakland

5h 28m

1 stop

HLN12:23 pmHelena

Jun 29

HLN12:50 pmHelena

4h 41m

1 stop

OAK4:31 pmOakland

$405

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

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

2:09 pm-5:45 pm

1 stop26h 36m

Helena

Sa 5/2

6:22 pm-10:32 pm

1 stop5h 10m

$262

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

2:09 pm-5:45 pm

1 stop26h 36m

Helena

Sa 5/2

6:22 pm-10:32 pm

1 stop5h 10m

$267

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

2:09 pm-5:45 pm

1 stop26h 36m

Helena

Sa 5/2

6:22 pm-10:32 pm

1 stop5h 10m

$272

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

3:18 pm-5:45 pm

2 stops25h 27m

Helena

Sa 5/2

6:22 pm-10:32 pm

1 stop5h 10m

$302

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

7:19 pm-5:45 pm

2 stops21h 26m

Helena

Sa 5/2

6:22 pm-10:32 pm

1 stop5h 10m

$307

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Mi 7/8

10:20 am-4:49 pm

1 stop5h 29m

Helena

Do 7/16

5:26 pm-10:59 pm

1 stop6h 33m

$371

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

3:18 pm-5:45 pm

2 stops25h 27m

Helena

Sa 5/2

6:22 pm-10:17 am

2 stops40h 55m

$387

Quickest round-trip

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Fr 6/12

5:05 pm-10:34 pm

1 stop4h 29m

Helena

Mi 6/17

12:50 pm-4:31 pm

1 stop4h 41m

$391

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Di 4/28

7:19 pm-5:45 pm

2 stops21h 26m

Helena

Sa 5/2

6:22 pm-10:17 am

2 stops40h 55m

$397

OaklandHelena

OAK - HLN

OAKHLN

Oakland

Sa 6/27

5:55 am-12:23 pm

1 stop5h 28m

Helena

Di 6/30

12:50 pm-4:31 pm

1 stop4h 41m

$403

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?

Alaska Airlines and Delta 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 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

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.