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Cheap flights from Chicago O'Hare Intl Airport to Helena from $258

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Helena departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:45 am - 3:43 pmORD-HLN
8h 58m1 stop
Alaska Airlines Logo
4:10 pm - 11:59 pmHLN-ORD
6h 49m1 stop
$258Alaska Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
Delta Logo
7:20 am - 12:25 pmORD-HLN
6h 05m1 stop
Delta Logo
1:06 pm - 9:21 pmHLN-ORD
7h 15m1 stop
$259Delta
Find Deal
Sun, Dec 14 - Wed, Dec 17
Delta Logo
2:30 pm - 10:30 pmORD-HLN
9h 00m2 stops
Delta Logo
5:30 am - 12:40 pmHLN-ORD
6h 10m1 stop
$264Delta
Find Deal
Sun, Dec 14 - Wed, Dec 17
Alaska Airlines Logo
7:45 am - 3:43 pmORD-HLN
8h 58m1 stop
Alaska Airlines Logo
4:10 pm - 1:04 pmHLN-ORD
19h 54m2 stops
$316Alaska Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
Alaska Airlines Logo
6:00 am - 5:51 pmORD-HLN
12h 51m1 stop
Alaska Airlines Logo
6:28 pm - 2:37 pmHLN-ORD
19h 09m2 stops
$346Alaska Airlines
Find Deal
Sun, Dec 14 - Wed, Dec 17
Alaska Airlines Logo
6:50 pm - 3:43 pmORD-HLN
21h 53m1 stop
Alaska Airlines Logo
4:10 pm - 1:04 pmHLN-ORD
19h 54m1 stop
$352Alaska Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
2:31 pm - 9:31 pmORD-HLN
8h 00m1 stop
United Airlines Logo
2:26 pm - 9:19 pmHLN-ORD
5h 53m1 stop
$493United Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
United Airlines Logo
2:31 pm - 9:31 pmORD-HLN
8h 00m1 stop
United Airlines Logo
2:26 pm - 11:59 pmHLN-ORD
8h 33m1 stop
$543United Airlines
Find Deal
Wed, Dec 24 - Tue, Dec 30
United Airlines Logo
3:42 pm - 9:31 pmORD-HLN
6h 49m1 stop
United Airlines Logo
2:26 pm - 11:59 pmHLN-ORD
8h 33m1 stop
$625United Airlines
Find Deal
Thu, Dec 25 - Wed, Dec 31
United Airlines Logo
8:47 am - 9:22 pmORD-HLN
13h 35m1 stop
United Airlines Logo
6:40 am - 11:59 pmHLN-ORD
16h 19m1 stop
$639United Airlines
Find Deal
Fri, Nov 21 - Mon, Nov 24

Alaska Airlines flights from Chicago O'Hare Intl Airport to Helena

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to Helena flight tickets
Alaska Airlines
Mar 5
ORD7:45 amChicago O'Hare Intl
8h 58m
1 stop
HLN3:43 pmHelena
Mar 9
HLN4:10 pmHelena
6h 49m
1 stop
ORD11:59 pmChicago O'Hare Intl
$258
Find similar
Alaska Airlines
Mar 5
ORD7:45 amChicago O'Hare Intl
8h 58m
1 stop
HLN3:43 pmHelena
Mar 9
HLN4:10 pmHelena
19h 54m
2 stops
ORD1:04 pmChicago O'Hare Intl
$316
Find similar
Alaska Airlines
Dec 14
ORD6:00 amChicago O'Hare Intl
12h 51m
1 stop
HLN5:51 pmHelena
Dec 17
HLN6:28 pmHelena
19h 09m
2 stops
ORD2:37 pmChicago O'Hare Intl
$346
Find similar

Delta flights from Chicago O'Hare Intl Airport to Helena

Our best Delta deals on Chicago O'Hare Intl Airport to Helena flight tickets
Delta
Dec 14
ORD7:20 amChicago O'Hare Intl
6h 05m
1 stop
HLN12:25 pmHelena
Dec 17
HLN1:06 pmHelena
7h 15m
1 stop
ORD9:21 pmChicago O'Hare Intl
$259
Find similar
Delta
Dec 14
ORD2:30 pmChicago O'Hare Intl
9h 00m
2 stops
HLN10:30 pmHelena
Dec 17
HLN5:30 amHelena
6h 10m
1 stop
ORD12:40 pmChicago O'Hare Intl
$264
Find similar
Delta
Dec 24
ORD3:00 pmChicago O'Hare Intl
8h 30m
1 stop
HLN10:30 pmHelena
Jan 1
HLN5:30 amHelena
7h 16m
1 stop
ORD1:46 pmChicago O'Hare Intl
$439
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Thu 3/5

7:45 am-3:43 pm

1 stop8h 58m

Helena

Mon 3/9

4:10 pm-11:59 pm

1 stop6h 49m

$258

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sun 12/14

7:20 am-12:25 pm

1 stop6h 05m

Helena

Wed 12/17

1:06 pm-9:21 pm

1 stop7h 15m

$259

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sun 12/14

2:30 pm-10:30 pm

2 stops9h 00m

Helena

Wed 12/17

5:30 am-12:40 pm

1 stop6h 10m

$264

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Thu 3/5

7:45 am-3:43 pm

1 stop8h 58m

Helena

Mon 3/9

4:10 pm-1:04 pm

2 stops19h 54m

$316

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sun 12/14

6:00 am-5:51 pm

1 stop12h 51m

Helena

Wed 12/17

6:28 pm-2:37 pm

2 stops19h 09m

$346

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Thu 3/5

6:50 pm-3:43 pm

1 stop21h 53m

Helena

Mon 3/9

4:10 pm-1:04 pm

1 stop19h 54m

$352

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Wed 12/24

2:31 pm-9:31 pm

1 stop8h 00m

Helena

Wed 12/31

2:26 pm-9:19 pm

1 stop5h 53m

$493

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Wed 12/24

2:31 pm-9:31 pm

1 stop8h 00m

Helena

Tue 12/30

2:26 pm-11:59 pm

1 stop8h 33m

$543

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Thu 12/25

3:42 pm-9:31 pm

1 stop6h 49m

Helena

Wed 12/31

2:26 pm-11:59 pm

1 stop8h 33m

$625

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Fri 11/21

8:47 am-9:22 pm

1 stop13h 35m

Helena

Mon 11/24

6:40 am-11:59 pm

1 stop16h 19m

$639

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helena from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 day to depart on your flight to Helena?

The cheapest day to depart from Chicago O'Hare Intl Airport to Helena is on a Wednesday. Travelers who choose to depart for Helena on a Wednesday will often find tickets for as low as $477. The most expensive day to fly to Helena is Monday, with ticket prices averaging around $1,040.

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 morning. momondo users have found flights departing from Chicago O'Hare Intl Airport to Helena in the morning for as low as $557. 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 in the afternoon when prices are around $863.

When to book flights from Chicago O'Hare Intl Airport to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Helena according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Helena (ORD to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Helena

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Helena. There are no popular flight routes from Chicago O'Hare Intl Airport to Helena.
Search flight deals

  • How far is Chicago O'Hare Intl to Helena by plane?

    Helena is 1229.2 mi away from Chicago O'Hare Intl. Typically, this will take 6h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Helena Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Helena Airport were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Helena Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Helena?

Best airlines flying from Chicago O'Hare Intl Airport to Helena

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Helena?

It is quick and easy to find Chicago to Helena flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Helena that suits you.

Can I find flights from Chicago to Helena with flexible booking policies on momondo?

momondo does allow users to show only those flights to Helena from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Helena?

Once all potential Chicago to Helena flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Helena right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Helena from Chicago. 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.

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