Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Helena from $268

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Helena departing on 3/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago 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 - 5:50 pmHLN-ORD
24h 40m1 stop
$402Alaska Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
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
$408Alaska Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
1:51 pm - 9:22 pmORD-HLN
8h 31m1 stop
United Airlines Logo
6:30 am - 1:15 pmHLN-ORD
5h 45m1 stop
$419United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
Alaska Airlines Logo
8:59 pm - 5:51 pmORD-HLN
21h 52m2 stops
Alaska Airlines Logo
6:28 pm - 11:50 pmHLN-ORD
28h 22m2 stops
$433Alaska Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
Delta Logo
7:20 am - 12:25 pmORD-HLN
6h 05m1 stop
Delta Logo
1:06 pm - 9:21 pmHLN-ORD
7h 15m1 stop
$478Delta
Find Deal
Sun, Dec 14 - Wed, Dec 17
Delta Logo
12:50 pm - 10:34 pmORD-HLN
10h 44m2 stops
Delta Logo
12:50 pm - 11:50 pmHLN-ORD
10h 00m2 stops
$507Delta
Find Deal
Wed, Apr 22 - Sat, Apr 25
Delta Logo
7:15 am - 12:23 pmORD-HLN
6h 08m1 stop
Delta Logo
12:50 pm - 11:50 pmHLN-ORD
10h 00m2 stops
$521Delta
Find Deal
Wed, Apr 22 - Sat, Apr 25
Delta Logo
1:00 pm - 10:34 pmMDW-HLN
10h 34m2 stops
Delta Logo
5:45 am - 9:45 pmHLN-MDW
15h 00m2 stops
$527Delta
Find Deal
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
8:55 am - 9:22 pmORD-HLN
13h 27m2 stops
United Airlines Logo
2:22 pm - 7:49 amHLN-ORD
16h 27m2 stops
$613United Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
United Airlines Logo
10:40 am - 9:22 pmORD-HLN
11h 42m1 stop
United Airlines Logo
2:22 pm - 6:35 pmHLN-ORD
27h 13m2 stops
$632United Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22

United Airlines flights from Chicago to Helena

Our best United Airlines deals on Chicago to Helena flight tickets
United Airlines
Dec 2
ORD1:51 pmChicago O'Hare Intl
8h 31m
1 stop
HLN9:22 pmHelena
Dec 6
HLN6:30 amHelena
5h 45m
1 stop
ORD1:15 pmChicago O'Hare Intl
$419
Find similar
United Airlines
Nov 18
ORD8:55 amChicago O'Hare Intl
13h 27m
2 stops
HLN9:22 pmHelena
Nov 22
HLN2:22 pmHelena
16h 27m
2 stops
ORD7:49 amChicago O'Hare Intl
$613
Find similar
United Airlines
Nov 18
ORD10:40 amChicago O'Hare Intl
11h 42m
1 stop
HLN9:22 pmHelena
Nov 22
HLN2:22 pmHelena
27h 13m
2 stops
ORD6:35 pmChicago O'Hare Intl
$632
Find similar

Alaska Airlines flights from Chicago to Helena

Our best Alaska Airlines deals on Chicago 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
24h 40m
1 stop
ORD5:50 pmChicago O'Hare Intl
$402
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
$408
Find similar
Alaska Airlines
Dec 2
ORD8:59 pmChicago O'Hare Intl
21h 52m
2 stops
HLN5:51 pmHelena
Dec 6
HLN6:28 pmHelena
28h 22m
2 stops
ORD11:50 pmChicago O'Hare Intl
$433
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 3, 2025.
Use the filters below to find and compare flights from Chicago 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-5:50 pm

1 stop24h 40m

$402

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

$408

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Tue 12/2

1:51 pm-9:22 pm

1 stop8h 31m

Helena

Sat 12/6

6:30 am-1:15 pm

1 stop5h 45m

$419

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Tue 12/2

8:59 pm-5:51 pm

2 stops21h 52m

Helena

Sat 12/6

6:28 pm-11:50 pm

2 stops28h 22m

$433

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

$478

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Wed 4/22

12:50 pm-10:34 pm

2 stops10h 44m

Helena

Sat 4/25

12:50 pm-11:50 pm

2 stops10h 00m

$507

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Wed 4/22

7:15 am-12:23 pm

1 stop6h 08m

Helena

Sat 4/25

12:50 pm-11:50 pm

2 stops10h 00m

$521

ChicagoHelena

MDW - HLN

MDWHLN

Chicago Midway

Wed 4/22

1:00 pm-10:34 pm

2 stops10h 34m

Helena

Sat 4/25

5:45 am-9:45 pm

2 stops15h 00m

$527

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Tue 11/18

8:55 am-9:22 pm

2 stops13h 27m

Helena

Sat 11/22

2:22 pm-7:49 am

2 stops16h 27m

$613

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Tue 11/18

10:40 am-9:22 pm

1 stop11h 42m

Helena

Sat 11/22

2:22 pm-6:35 pm

2 stops27h 13m

$632

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

See travel insights to Helena from

How to get the cheapest flight ticket from Chicago 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 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 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 to Helena

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

Cheap Chicago to Helena (CHI to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Helena

Direct flights

None
There are no direct flights from Chicago to Helena. There are no popular flight routes from Chicago to Helena.
Search flight deals

  • How far is Chicago to Helena by plane?

    A flight from Chicago to Helena will travel around 1245.1 mi. By plane, this route typically takes 6h 05m.

  • When did momondo last update prices for flights from Chicago to Helena Airport?

    Prices for flights from Chicago to Helena Airport were last updated today.

  • How many operators does momondo search for flights from Chicago to Helena Airport?

  • How old do you have to be to fly from Chicago to Helena Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Helena Airport.

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

    The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago to Helena?

Best airlines flying from Chicago to Helena

Compare and see reviews for airlines that fly from Chicago to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Helena for you.

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

Yes. All flights to Helena from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Chicago to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Chicago to Helena now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Helena and let you know when they change.

An easier way to manage your Helena trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/3
Wed 12/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States