Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Helena to Illinois from $339

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 5/22. 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
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Illinois

In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Illinois Flight Deals

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

Chicago
Chicago1 stop$464
Moline
Moline1 stop$492
St. Louis
St. Louis1 stop$448

Good to know

High season

June

Cheapest flight

$339
Most popular time to fly and prices are also 11% lower on average.
Flight from Helena to Moline

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 47% more expensive 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 11043 reviews
7.2Comfort
7.1Entertainment
6.7Food
8.1Crew
7.7Boarding
Airline reviews

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.

8.0 ExcellentMichelle, Apr 2024MBS - ORD
Read more about United Airlines reviews

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.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

Book cheap flights from Helena to Illinois

Recent round-trip flight deals

5/30Thu
1 stopAlaska Airlines
7h 58mHLN-STL
6/2Sun
1 stopAlaska Airlines
8h 23mSTL-HLN
$448
8/24Sat
1 stopDelta
6h 30mHLN-STL
8/27Tue
1 stopDelta
6h 00mSTL-HLN
$458
8/24Sat
1 stopDelta
7h 26mHLN-STL
8/27Tue
2 stopsDelta
13h 30mSTL-HLN
$463
6/7Fri
1 stopAlaska Airlines
13h 39mHLN-ORD
6/9Sun
1 stopAlaska Airlines
18h 44mORD-HLN
$464
8/24Sat
2 stopsDelta
9h 29mHLN-STL
8/27Tue
2 stopsDelta
13h 30mSTL-HLN
$468
6/7Fri
2 stopsAlaska Airlines
12h 39mHLN-ORD
6/9Sun
1 stopAlaska Airlines
18h 44mORD-HLN
$469
8/24Sat
1 stopUnited Airlines
5h 45mHLN-MLI
8/28Wed
1 stopUnited Airlines
13h 25mMLI-HLN
$492
8/24Sat
1 stopUnited Airlines
5h 45mHLN-MLI
8/28Wed
2 stopsUnited Airlines
15h 30mMLI-HLN
$497
8/24Sat
1 stopUnited Airlines
5h 45mHLN-MLI
8/28Wed
1 stopUnited Airlines
13h 25mMLI-HLN
$532
8/24Sat
1 stopUnited Airlines
5h 45mHLN-MLI
8/28Wed
2 stopsUnited Airlines
15h 30mMLI-HLN
$537

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/22Wed
1 stopUnited Airlines
6h 12mHLN-MLI
$339
5/22Wed
2 stopsUnited Airlines
9h 08mHLN-MLI
$479

Search by stops

Search by airline

Search by price

Last minute flights from Helena to Illinois

Last minute flight, train and bus deals

5/13Mon
multi-stopUnited Airlines
18h 12mHLN-ORD
8/1Thu
multi-stopUnited Airlines
6h 28mORD-HLN
$697
5/13Mon
multi-stopUnited Airlines
8h 52mHLN-ORD
8/1Thu
multi-stopUnited Airlines
6h 28mORD-HLN
$813
5/13Mon
multi-stopAlaska Airlines
12h 49mHLN-ORD
8/1Thu
multi-stopAlaska Airlines
16h 59mORD-HLN
$1,110

Search by stops

Search by airline

Search by price

Helena - Illinois Flights

Departure:

Helena (HLN)United States

Return flight deals:

Illinois - Helena

Cabin classes: