$141 Find Cheap Flights from Billings to Illinois - Compare and Save

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 8/25. 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
1 adult, Economy, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$281
Moline
Moline1 stop$414
St. Louis
St. Louis1 stop$379
Chicago
Chicago1 stop$281
Moline
Moline1 stop$414
St. Louis
St. Louis1 stop$379

Book Cheap Billings to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billings to Illinois

Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
2:29 pm - 9:59 pm
BIL
-
ORD
6h 30m
1 stop
United Airlines Logo
5:00 am - 9:41 am
ORD
-
BIL
5h 41m
1 stop
$281United Airlines
Tue, Oct 27 - Wed, Nov 4
United Airlines Logo
5:00 am - 11:19 am
BIL
-
ORD
5h 19m
1 stop
United Airlines Logo
3:55 pm - 9:04 pm
ORD
-
BIL
6h 09m
1 stop
$281United Airlines
Wed, Sep 23 - Wed, Sep 30
United Airlines Logo
2:29 pm - 10:46 pm
BIL
-
ORD
7h 17m
1 stop
United Airlines Logo
5:00 am - 9:46 am
ORD
-
BIL
5h 46m
1 stop
$281United Airlines
Tue, Oct 27 - Wed, Nov 4
Delta Logo
6:00 am - 11:43 am
BIL
-
ORD
4h 43m
1 stop
Delta Logo
8:55 am - 5:39 pm
ORD
-
BIL
9h 44m
2 stops
$286Delta
Tue, Oct 27 - Wed, Nov 4
Delta Logo
5:45 am - 4:40 pm
BIL
-
ORD
9h 55m
2 stops
Delta Logo
8:05 am - 5:39 pm
ORD
-
BIL
10h 34m
2 stops
$291Delta
Thu, Sep 3 - Wed, Sep 9
Delta Logo
5:20 am - 11:59 am
BIL
-
ORD
5h 39m
1 stop
Delta Logo
6:24 pm - 11:15 pm
ORD
-
BIL
5h 51m
1 stop
$312Delta
Thu, Sep 3 - Wed, Sep 9
American Airlines Logo
12:22 pm - 4:23 pm
BIL
-
ORD
3h 01mnonstop
American Airlines Logo
3:50 pm - 10:10 pm
ORD
-
BIL
7h 20m
1 stop
$333American Airlines
Wed, Sep 23 - Wed, Sep 30
American Airlines Logo
1:13 pm - 9:09 pm
BIL
-
ORD
6h 56m
1 stop
American Airlines Logo
9:41 am - 11:57 am
ORD
-
BIL
3h 16mnonstop
$345American Airlines
Fri, Oct 9 - Mon, Oct 12
Multiple Airlines Logo
10:22 pm - 5:42 am
BIL
-
ORD
30h 20m
1 stop
Multiple Airlines Logo
6:50 am - 8:02 pm
ORD
-
BIL
14h 12m
1 stop
$470Multiple Airlines
Fri, Oct 9 - Mon, Oct 12
Multiple Airlines Logo
10:22 pm - 8:28 pm
BIL
-
ORD
21h 06m
2 stops
Multiple Airlines Logo
6:50 am - 8:02 pm
ORD
-
BIL
14h 12m
1 stop
$538Multiple Airlines
Booking Insights

KAYAK's insights & trends for Billings to Illinois flights

Get data-powered insights and trends into flights from Billings to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Billings to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Billings to Illinois departing in September.

Flight prices are below average for this route right now.

Flights to Illinois from Billings usually cost between $339 and $569 in September.
The lowest price found in the past 5 days was $281 on United Airlines (Sep 19-Sep 22).

What is the cheapest Billings to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Billings found in the last 5 days was to Chicago, at $292 round-trip. The most popular route is from Billings (BIL) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $292.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Billings to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $505 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $529.

Can I save money by flying with a layover from Billings to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $471 on average.

What is the cheapest month to fly from Billings to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Billings to Illinois is February, when tickets cost $279 (return) on average. On the other hand, the most expensive months are July and November, when the average cost of round-trip tickets is $561 and $484 respectively.

What’s the cheapest day of the week to fly from Billings to Illinois?

The average price of all round-trip flights from Billings to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Saturday and more expensive on a Monday. On your return trip to Billings, you should consider flying back on a Saturday, and avoid Mondays for better deals.

Find deals

Good to know

Low season

May

Cheapest flight

$141
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 17% 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 from Billings to Illinois 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 from Billings to Illinois with an airline and back 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 from Billings to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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 $323 one-way - $459 round-trip

Everything you need to know for your flight from Billings to Illinois

Information on your arrival and departure airports

Billings (BIL)