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Find cheap flights from Helena to Illinois from $218

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Illinois departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mo 7/1
Mo 7/8

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop$384
St. Louis
St. Louis2 stops$403

Good to know

High season

June

Cheapest flight

$218
Most popular time to fly and prices are also 11% lower on average.
Flight from Helena to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Helena to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Helena with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 31% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from Helena to Illinois

 
Need help choosing which airline to fly with from Helena to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10754 reviews
7.1Entertainment
7.7Boarding
7.2Comfort
8.1Crew
6.7Food
Airline reviews

I had a great flight. Everything went smoothly and the flight arrived early.

10.0 ExcellentShirley, May 2024LAX - ORD
Read more about United Airlines reviews

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Book cheap flights from Helena to Illinois

Recent round-trip flight deals

8/17Sa
1 stopAlaska Airlines
11h 54mHLN-ORD
8/24Sa
2 stopsAlaska Airlines
9h 01mORD-HLN
$384
9/12Do
2 stopsAlaska Airlines
23h 31mHLN-ORD
9/15So
1 stopAlaska Airlines
27h 44mORD-HLN
$399
11/19Di
2 stopsDelta
7h 35mHLN-STL
11/24So
1 stopDelta
6h 06mSTL-HLN
$403
11/19Di
2 stopsDelta
7h 35mHLN-STL
11/25Mo
2 stopsDelta
13h 35mSTL-HLN
$408
11/19Di
1 stopDelta
6h 21mHLN-STL
11/24So
1 stopDelta
6h 06mSTL-HLN
$418
8/17Sa
2 stopsAlaska Airlines
12h 29mHLN-ORD
8/24Sa
2 stopsAlaska Airlines
9h 01mORD-HLN
$421
11/20Mi
1 stopUnited Airlines
4h 47mHLN-STL
11/25Mo
1 stopUnited Airlines
8h 21mSTL-HLN
$448
11/19Di
1 stopUnited Airlines
4h 47mHLN-STL
11/25Mo
1 stopUnited Airlines
8h 21mSTL-HLN
$478
11/19Di
1 stopUnited Airlines
4h 47mHLN-STL
11/27Mi
1 stopUnited Airlines
21h 43mSTL-HLN
$482
11/19Di
1 stopUnited Airlines
4h 47mHLN-STL
11/27Mi
2 stopsUnited Airlines
20h 36mSTL-HLN
$487

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Recent one-way flight deals

7/20Sa
1 stopAlaska Airlines
11h 54mHLN-ORD
$218
10/25Fr
1 stopDelta
7h 43mHLN-ORD
$224
6/15Sa
2 stopsDelta
9h 39mHLN-ORD
$253
7/13Sa
2 stopsAlaska Airlines
12h 29mHLN-ORD
$266
10/25Fr
2 stopsAlaska Airlines
23h 34mHLN-ORD
$274
7/13Sa
1 stopDelta
7h 27mHLN-ORD
$279
7/6Sa
1 stopUnited Airlines
5h 04mHLN-STL
$282
7/5Fr
2 stopsUnited Airlines
14h 46mHLN-STL
$324
7/20Sa
1 stopUnited Airlines
16h 14mHLN-ORD
$327
7/5Fr
1 stopUnited Airlines
14h 26mHLN-STL
$353

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Helena - Illinois Flights

Departure:

Helena (HLN)United States

Return flight deals:

Illinois - Helena

Cabin classes: