$369 Find Cheap Flights from Birmingham to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Birmingham to Illinois departing on 2/26. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Birmingham to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Birmingham to Illinois, as well as popular online travel agencies
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Cheap Flights from Birmingham to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$506
St. Louis
St. Louis2 stops$752
Chicago
Chicago1 stop$506
St. Louis
St. Louis2 stops$752

Book Cheap Birmingham 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 Birmingham 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 Birmingham to Illinois

Wed, Feb 18 - Sun, Feb 22
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
BHX
-
ORD
27h 35m1 stop
Scandinavian Airlines Logo
7:10 pm - 6:30 pm
ORD
-
BHX
17h 20m1 stop
$506Scandinavian Airlines
Wed, Feb 18 - Wed, Feb 25
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
BHX
-
ORD
27h 35m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:30 pm
ORD
-
BHX
17h 10m1 stop
$509Scandinavian Airlines
Fri, Feb 20 - Sun, Mar 1
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
BHX
-
ORD
27h 35m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:30 pm
ORD
-
BHX
17h 10m1 stop
$517Scandinavian Airlines
Fri, Feb 13 - Sun, Feb 15
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
BHX
-
ORD
27h 35m1 stop
Scandinavian Airlines Logo
7:10 pm - 6:30 pm
ORD
-
BHX
17h 20m1 stop
$527Scandinavian Airlines
Tue, Feb 17 - Tue, Feb 24
Delta Logo
6:15 am - 6:40 pm
BHX
-
MDW
18h 25m2 stops
Delta Logo
6:20 pm - 5:50 pm
MDW
-
BHX
17h 30m2 stops
$701Delta
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
6:15 am - 10:22 pm
BHX
-
MDW
22h 07m2 stops
Multiple Airlines Logo
11:45 am - 9:30 am
MDW
-
BHX
15h 45m2 stops
$705Multiple Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:00 am - 3:52 pm
BHX
-
STL
39h 52m2 stops
United Airlines Logo
11:20 am - 12:35 pm
STL
-
BHX
19h 15m2 stops
$752United Airlines
Mon, Apr 20 - Wed, May 6
Delta Logo
5:55 am - 5:54 pm
BHX
-
MDW
17h 59m2 stops
Delta Logo
9:26 am - 8:35 am
MDW
-
BHX
17h 09m2 stops
$774Delta
Thu, Apr 2 - Thu, Apr 16
KLM Logo
9:20 am - 6:40 pm
BHX
-
MDW
15h 20m2 stops
KLM Logo
9:27 am - 8:35 am
MDW
-
BHX
17h 08m2 stops
$946KLM
Tue, Feb 17 - Tue, Feb 24
United Airlines Logo
6:00 am - 10:14 pm
BHX
-
STL
22h 14m3 stops
United Airlines Logo
9:55 am - 8:10 am
STL
-
BHX
16h 15m2 stops
$1,482United Airlines
Booking Insights

KAYAK's insights & trends for Birmingham to Illinois flights

Get data-powered insights and trends into flights from Birmingham 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 Birmingham 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 Birmingham to Illinois departing in February.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Birmingham 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 Birmingham to Illinois is February, when tickets cost $656 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $1,002 and $904 respectively.

How far in advance should I book a flight from Birmingham to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Birmingham to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Birmingham to Illinois, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$369
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Birmingham to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Birmingham 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 Birmingham 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 Birmingham 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 Birmingham 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 Birmingham to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Birmingham to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Birmingham to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Birmingham 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.
7.2
Aer LingusOverall score based on 1420 reviews
7.1Comfort
8.0Crew
7.4Boarding
6.9Entertainment
6.6Food
Airline reviews

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

6.0 GoodAnonymous, Jan 2026
NCL - DUB
Read more Aer Lingus reviews

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

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

Information on your arrival and departure airports