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Find cheap flights from Billings to Illinois from $159

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Illinois departing on 7/19. 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
Mon 7/8
Mon 7/15

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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$296
Moline
Moline1 stop$624
St. Louis
St. Louis1 stop$338

Good to know

Low season

January

High season

July

Cheapest flight

$159
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Billings to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Billings 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 Billings to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Billings 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 Billings 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 Billings with another airline.

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

  • Looking for a cheap flight? 25% of our users found tickets from Billings to the following destinations at these prices or less: Chicago $324 one-way - $506 round-trip
  • Morning departure is around 26% 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 airlines flying from Billings to Illinois

Need help choosing which airline to fly with from Billings 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 10680 reviews
8.1Crew
7.2Comfort
7.1Entertainment
7.7Boarding
6.7Food
Airline reviews

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

10.0 ExcellentLeo, Jun 2024CLT - ORD
Read more about United Airlines reviews

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

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.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Book cheap flights from Billings to Illinois

Recent round-trip flight deals

7/17Wed
1 stop
4h 29mBIL-ORD
7/20Sat
1 stop
11h 52mORD-BIL
$296
7/17Wed
1 stop
4h 29mBIL-ORD
7/20Sat
2 stops
16h 11mORD-BIL
$331
12/5Thu
1 stopUnited Airlines
5h 07mBIL-STL
12/8Sun
1 stopUnited Airlines
5h 24mSTL-BIL
$338
9/23Mon
1 stopAlaska Airlines
13h 14mBIL-ORD
10/1Tue
1 stopAlaska Airlines
10h 53mORD-BIL
$349
9/23Mon
2 stopsAlaska Airlines
9h 15mBIL-ORD
10/1Tue
1 stopAlaska Airlines
15h 48mORD-BIL
$354
9/24Tue
nonstopAmerican Airlines
2h 48mBIL-ORD
9/24Tue
1 stopAmerican Airlines
27h 35mORD-BIL
$379
12/5Thu
2 stopsUnited Airlines
7h 33mBIL-STL
12/8Sun
1 stopUnited Airlines
5h 24mSTL-BIL
$443
7/3Wed
1 stopDelta
7h 02mBIL-STL
7/7Sun
1 stopDelta
6h 51mSTL-BIL
$473
7/3Wed
2 stopsDelta
8h 55mBIL-STL
7/7Sun
1 stopDelta
6h 51mSTL-BIL
$539
9/24Tue
nonstopAmerican Airlines
2h 48mBIL-ORD
9/24Tue
2 stopsAmerican Airlines
18h 17mORD-BIL
$566

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Recent one-way flight deals

7/19Fri
1 stop
11h 56mBIL-ORD
$159
6/30Sun
1 stop
15h 47mBIL-ORD
$166
8/13Tue
1 stopAlaska Airlines
13h 09mBIL-ORD
$227
8/13Tue
2 stopsAlaska Airlines
14h 14mBIL-ORD
$242
9/28Sat
1 stopUnited Airlines
22h 05mBIL-ORD
$257
9/28Sat
2 stopsUnited Airlines
17h 57mBIL-ORD
$262
6/30Sun
nonstopAmerican Airlines
2h 45mBIL-ORD
$360
6/16Sun
1 stopAmerican Airlines
7h 49mBIL-MLI
$363
7/19Fri
1 stopDelta
6h 49mBIL-MDW
$369
7/23Tue
2 stopsDelta
10h 33mBIL-MDW
$389

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Last minute flights from Billings to Illinois

Last minute flight, train and bus deals

6/13Thu
multi-stopUnited Airlines
6h 59mBIL-STL
6/18Tue
multi-stopUnited Airlines
7h 02mSTL-BIL
$458
6/13Thu
multi-stopDelta
7h 08mBIL-STL
6/18Tue
multi-stopDelta
7h 21mSTL-BIL
$498
6/13Thu
multi-stopDelta
10h 36mBIL-STL
6/18Tue
multi-stopDelta
7h 21mSTL-BIL
$503
6/12Wed
multi-stopUnited Airlines
7h 42mBIL-STL
6/18Tue
multi-stopUnited Airlines
7h 02mSTL-BIL
$514
6/13Thu
multi-stop
18h 40mBIL-ORD
6/20Thu
multi-stop
21h 39mORD-BIL
$525
6/13Thu
multi-stop
21h 54mBIL-ORD
6/20Thu
multi-stop
21h 39mORD-BIL
$553
6/12Wed
multi-stopUnited Airlines
5h 09mBIL-STL
6/18Tue
multi-stopUnited Airlines
7h 02mSTL-BIL
$554
6/13Thu
multi-stop
18h 29mBIL-ORD
6/20Thu
multi-stop
21h 39mORD-BIL
$561
6/13Thu
nonstopAmerican Airlines
2h 45mBIL-ORD
6/20Thu
multi-stopAmerican Airlines
8h 59mORD-BIL
$755
6/13Thu
nonstopAmerican Airlines
2h 45mBIL-ORD
6/20Thu
nonstopAmerican Airlines
3h 03mORD-BIL
$891

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Billings - Illinois Flights

Departure:

Billings (BIL)United States

Return flight deals:

Illinois - Billings

Cabin classes:

$1,885
$3,674
$2,519
$455