$404 Find Cheap Flights from Birmingham 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 Birmingham to Illinois departing on 9/30. 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

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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
Chicago2 stops$579
St. Louis
St. Louis2 stops$1,097
Chicago
Chicago2 stops$579
St. Louis
St. Louis2 stops$1,097

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

Tue, Aug 25 - Mon, Aug 31
Multiple Airlines Logo
11:10 pm - 4:57 pm
BHX
-
ORD
23h 47m
2 stops
Multiple Airlines Logo
7:25 pm - 10:40 pm
ORD
-
BHX
21h 15m
2 stops
$579Multiple Airlines
Tue, Aug 25 - Mon, Aug 31
Multiple Airlines Logo
11:10 pm - 8:05 pm
BHX
-
ORD
26h 55m
3 stops
Multiple Airlines Logo
7:25 pm - 10:40 pm
ORD
-
BHX
21h 15m
2 stops
$596Multiple Airlines
Tue, Aug 25 - Mon, Aug 31
Multiple Airlines Logo
11:10 pm - 4:57 pm
BHX
-
ORD
23h 47m
2 stops
Multiple Airlines Logo
7:25 pm - 10:40 pm
ORD
-
BHX
21h 15m
2 stops
$602Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Delta Logo
5:55 am - 6:01 pm
BHX
-
MDW
18h 06m
2 stops
Delta Logo
5:45 pm - 1:40 pm
MDW
-
BHX
13h 55m
2 stops
$855Delta
Wed, Sep 9 - Wed, Sep 23
Virgin Atlantic Logo
5:55 am - 4:57 pm
BHX
-
MDW
17h 02m
2 stops
Virgin Atlantic Logo
1:19 pm - 8:35 am
MDW
-
BHX
13h 16m
2 stops
$894Virgin Atlantic
Tue, Sep 1 - Tue, Sep 8
Delta Logo
5:55 am - 4:59 pm
BHX
-
MDW
17h 04m
2 stops
Delta Logo
5:45 pm - 1:40 pm
MDW
-
BHX
13h 55m
2 stops
$895Delta
Wed, Sep 9 - Sun, Sep 13
Scandinavian Airlines Logo
7:15 pm - 11:42 pm
BHX
-
STL
34h 27m
2 stops
Scandinavian Airlines Logo
3:54 pm - 6:35 pm
STL
-
BHX
20h 41m
2 stops
$1,097Scandinavian Airlines
Wed, Sep 9 - Wed, Sep 23
Virgin Atlantic Logo
5:55 am - 4:57 pm
BHX
-
MDW
17h 02m
2 stops
Virgin Atlantic Logo
1:19 pm - 8:35 am
MDW
-
BHX
13h 16m
2 stops
$1,113Virgin Atlantic
Tue, Aug 11 - Mon, Aug 17
Aer Lingus Logo
12:20 pm - 11:34 pm
BHX
-
STL
17h 14m
2 stops
Aer Lingus Logo
6:00 am - 4:05 pm
STL
-
BHX
28h 05m
2 stops
$1,394Aer Lingus
Tue, Aug 11 - Mon, Aug 17
Aer Lingus Logo
12:20 pm - 11:34 pm
BHX
-
STL
17h 14m
2 stops
Aer Lingus Logo
9:32 am - 7:40 am
STL
-
BHX
16h 08m
2 stops
$1,401Aer 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.

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 August.

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 August, when tickets cost $58 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is $788 and $578 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$404
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly with an average 25% 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.
7.3
Aer LingusOverall score based on 1648 reviews
7.4Boarding
6.6Food
7.2Comfort
7.0Entertainment
8.1Crew
Airline reviews

Small plane. Tight seating . What can one say except that it was fast!

8.0 ExcellentAnne, May 2026
DUB - ORD
Read more Aer Lingus reviews

Small plane. Tight seating . What can one say except that it was fast!

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

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.

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

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

Very good except for the boarding process which was more hectic than it should have been

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

I got rerouted to another flight/city because the original flight was late and I would not have made my connection. I had to wait an additional five hours (no compensation) for the new flight which was also delayed because the computer was not working. Arrived at my final destination after nearly 20 hours of travel only to discover that my baggage had not arrived with me. Two days later and still waiting for my baggage. Customer service has been incredibly unhelpful and even hung up on me because I dared to ask for them to have someone call me when my bag arrived at the airport. No one apologized to me for what I experienced and they were dismissive of the fact that I have absolutely no clothes or toiletries. Absolutely awful, disorganized and stressful experience. Am dreading the return flight.

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

Information on your arrival and departure airports