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.

$277 Cheap Flights from Oakland, California to Helena in 2026/27

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.

7:00 am - 3:37 pmOAK Oakland-HLN Helena

7h 37m1 stop Seattle/Tacoma Intl

4:17 pm - 10:56 pmHLN Helena-OAK Oakland

7h 39m1 stop Seattle/Tacoma Intl

$365Alaska Airlines

Sat, Feb 13 - Sat, Feb 20

7:00 am - 4:12 pmOAK Oakland-HLN Helena

8h 12m1 stop Seattle/Tacoma Intl

4:49 pm - 12:40 pmHLN Helena-OAK Oakland

20h 51m1 stop Seattle/Tacoma Intl

$373Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

7:00 am - 3:37 pmOAK Oakland-HLN Helena

7h 37m1 stop Seattle/Tacoma Intl

4:17 pm - 5:54 pmHLN Helena-OAK Oakland

26h 37m1 stop Seattle/Tacoma Intl

$380Alaska Airlines

Sat, Feb 13 - Fri, Feb 19

7:00 am - 4:12 pmOAK Oakland-HLN Helena

8h 12m1 stop Seattle/Tacoma Intl

4:49 pm - 12:40 pmHLN Helena-OAK Oakland

20h 51m1 stop Seattle/Tacoma Intl

$410Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

7:00 am - 3:37 pmOAK Oakland-HLN Helena

7h 37m1 stop Seattle/Tacoma Intl

4:17 pm - 9:26 pmHLN Helena-OAK Oakland

6h 09m2 stops Seattle/Tacoma Intl Portland

$410Alaska Airlines

Sat, Feb 13 - Sat, Feb 20

10:36 am - 4:12 pmOAK Oakland-HLN Helena

28h 36m2 stops San Diego Seattle/Tacoma Intl

4:49 pm - 12:40 pmHLN Helena-OAK Oakland

20h 51m1 stop Seattle/Tacoma Intl

$418Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

7:00 am - 3:37 pmOAK Oakland-HLN Helena

7h 37m1 stop Seattle/Tacoma Intl

4:17 pm - 4:30 pmHLN Helena-OAK Oakland

25h 13m2 stops Seattle/Tacoma Intl Portland

$425Alaska Airlines

Sat, Feb 13 - Fri, Feb 19

10:36 am - 4:12 pmOAK Oakland-HLN Helena

28h 36m2 stops San Diego Seattle/Tacoma Intl

4:49 pm - 12:40 pmHLN Helena-OAK Oakland

20h 51m1 stop Seattle/Tacoma Intl

$435Alaska Airlines

Thu, Dec 10 - Mon, Dec 14

5:55 am - 12:26 pmOAK Oakland-HLN Helena

5h 31m1 stop Salt Lake City

7:15 am - 12:00 pmHLN Helena-OAK Oakland

5h 45m1 stop Salt Lake City

$627Delta

Sat, Feb 13 - Sat, Feb 20

5:55 am - 12:27 pmOAK Oakland-HLN Helena

5h 32m1 stop Salt Lake City

7:00 am - 12:01 pmHLN Helena-OAK Oakland

6h 01m1 stop Salt Lake City

$775Delta

Mon, Nov 23 - Fri, Nov 27

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Alaska Airlines flights from Oakland, California to Helena

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

Alaska Airlines

Feb 13

OAK7:00 amOakland

7h 37m

1 stop

HLN3:37 pmHelena

Feb 20

HLN4:17 pmHelena

7h 39m

1 stop

OAK10:56 pmOakland

$365

Alaska Airlines

Dec 10

OAK7:00 amOakland

8h 12m

1 stop

HLN4:12 pmHelena

Dec 14

HLN4:49 pmHelena

20h 51m

1 stop

OAK12:40 pmOakland

$373

Alaska Airlines

Feb 13

OAK7:00 amOakland

7h 37m

1 stop

HLN3:37 pmHelena

Feb 19

HLN4:17 pmHelena

26h 37m

1 stop

OAK5:54 pmOakland

$380

Delta flights from Oakland, California to Helena

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

Delta

Feb 13

OAK5:55 amOakland

5h 31m

1 stop

HLN12:26 pmHelena

Feb 20

HLN7:15 amHelena

5h 45m

1 stop

OAK12:00 pmOakland

$627

Delta

Nov 23

OAK5:55 amOakland

5h 32m

1 stop

HLN12:27 pmHelena

Nov 27

HLN7:00 amHelena

6h 01m

1 stop

OAK12:01 pmOakland

$775

Delta

Nov 13

OAK5:00 pmOakland

4h 26m

1 stop

HLN10:26 pmHelena

Nov 16

HLN7:00 amHelena

6h 01m

1 stop

OAK12:01 pmOakland

$1,080

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 Oakland - HLN Helena

OAKHLN

Oakland

Sat 2/13

7:00 am-3:37 pm

1 stop7h 37m

Helena

Sat 2/20

4:17 pm-10:56 pm

1 stop7h 39m

$365

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Thu 12/10

7:00 am-4:12 pm

1 stop8h 12m

Helena

Mon 12/14

4:49 pm-12:40 pm

1 stop20h 51m

$373

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 2/13

7:00 am-3:37 pm

1 stop7h 37m

Helena

Fri 2/19

4:17 pm-5:54 pm

1 stop26h 37m

$380

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Thu 12/10

7:00 am-4:12 pm

1 stop8h 12m

Helena

Mon 12/14

4:49 pm-12:40 pm

1 stop20h 51m

$410

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 2/13

7:00 am-3:37 pm

1 stop7h 37m

Helena

Sat 2/20

4:17 pm-9:26 pm

2 stops6h 09m

$410

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Thu 12/10

10:36 am-4:12 pm

2 stops28h 36m

Helena

Mon 12/14

4:49 pm-12:40 pm

1 stop20h 51m

$418

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 2/13

7:00 am-3:37 pm

1 stop7h 37m

Helena

Fri 2/19

4:17 pm-4:30 pm

2 stops25h 13m

$425

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Thu 12/10

10:36 am-4:12 pm

2 stops28h 36m

Helena

Mon 12/14

4:49 pm-12:40 pm

1 stop20h 51m

$435

Quickest round-trip

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Sat 2/13

5:55 am-12:26 pm

1 stop5h 31m

Helena

Sat 2/20

7:15 am-12:00 pm

1 stop5h 45m

$627

OaklandHelena

OAK Oakland - HLN Helena

OAKHLN

Oakland

Mon 11/23

5:55 am-12:27 pm

1 stop5h 32m

Helena

Fri 11/27

7:00 am-12:01 pm

1 stop6h 01m

$775

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 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	$277
Fastest flight time	4h 26m
Direct flights	None

The best one-way flight to Helena from Oakland, California in the past 72 hours is $277. The best round-trip flight deal from Oakland, California to Helena found on momondo in the last 72 hours is $365.

The fastest flight from Oakland, California to Helena takes 4h 26m

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 26m 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.