$380 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 4/7. 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$632
St. Louis
St. Louis2 stops$1,014
Chicago
Chicago1 stop$632
St. Louis
St. Louis2 stops$1,014

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

Sun, Apr 19 - Fri, Apr 24
Scandinavian Airlines Logo
2:20 pm - 4:10 pm
BHX
-
ORD
31h 50m
1 stop
Scandinavian Airlines Logo
7:15 pm - 6:35 pm
ORD
-
BHX
17h 20m
1 stop
$632Scandinavian Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
8:30 am - 6:15 pm
BHX
-
ORD
15h 45m
2 stops
Multiple Airlines Logo
7:25 pm - 5:35 pm
ORD
-
BHX
16h 10m
2 stops
$660Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
9:00 am - 9:50 am
BHX
-
ORD
30h 50m
3 stops
Multiple Airlines Logo
7:25 pm - 11:55 pm
ORD
-
BHX
22h 30m
3 stops
$667Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
12:40 pm - 2:30 pm
BHX
-
ORD
31h 50m
2 stops
Multiple Airlines Logo
5:10 pm - 11:35 pm
ORD
-
BHX
24h 25m
2 stops
$676Multiple Airlines
Sun, Apr 19 - Fri, Apr 24
Multiple Airlines Logo
5:15 pm - 2:25 pm
BHX
-
ORD
27h 10m
1 stop
Multiple Airlines Logo
10:25 pm - 12:55 am
ORD
-
BHX
20h 30m
2 stops
$679Multiple Airlines
Mon, Apr 20 - Sun, Apr 26
Delta Logo
5:55 am - 5:58 pm
BHX
-
MDW
18h 03m
2 stops
Delta Logo
9:27 am - 8:35 am
MDW
-
BHX
17h 08m
2 stops
$883Delta
Tue, Apr 7 - Tue, Apr 14
Delta Logo
9:20 am - 6:40 pm
BHX
-
MDW
15h 20m
2 stops
Delta Logo
2:12 pm - 12:40 pm
MDW
-
BHX
16h 28m
2 stops
$913Delta
Thu, Mar 19 - Thu, Mar 26
Finnair Logo
8:15 am - 11:29 am
BHX
-
STL
32h 14m
2 stops
Finnair Logo
11:59 am - 12:50 pm
STL
-
BHX
19h 51m
2 stops
$1,014Finnair
Sun, Mar 22 - Sun, Mar 29
KLM Logo
8:45 pm - 9:05 am
BHX
-
STL
41h 20m
2 stops
KLM Logo
6:59 pm - 8:35 am
STL
-
BHX
31h 36m
2 stops
$1,159KLM
Sun, Mar 22 - Sun, Mar 29
Aer Lingus Logo
3:40 pm - 11:02 pm
BHX
-
STL
36h 22m
2 stops
Aer Lingus Logo
6:13 am - 6:10 pm
STL
-
BHX
29h 57m
2 stops
$1,170Aer Lingus
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.

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 $688 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of round-trip tickets is $987 and $973 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 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$380
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 5% 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 1460 reviews
8.1Crew
6.6Food
7.4Boarding
7.0Entertainment
7.1Comfort
Airline reviews

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

10.0 ExcellentJohanna, Feb 2026
DUB - ORD
Read more Aer Lingus reviews

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

One of the best flight experiences I've have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

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.

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

Information on your arrival and departure airports

Birmingham (BHX)