$641 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 9/7. 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

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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Flight Deals

Cheap Flights from Birmingham to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$683
St. Louis
St. Louis2 stops$1,061
Chicago
Chicago1 stop$683
St. Louis
St. Louis2 stops$1,061

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

Mon, Sep 22 - Fri, Sep 26
Aer Lingus Logo
8:10 am - 2:00 pmBHX-ORD
11h 50m1 stop
Aer Lingus Logo
3:45 pm - 7:40 amORD-BHX
9h 55m1 stop
$683Aer Lingus
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Sat, Sep 6 - Mon, Oct 6
Aer Lingus Logo
8:10 am - 7:00 pmBHX-ORD
16h 50m1 stop
Aer Lingus Logo
9:15 pm - 7:45 pmORD-BHX
16h 30m1 stop
$688Aer Lingus
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Fri, Oct 10 - Tue, Oct 14
 Logo
3:40 pm - 4:10 pmBHX-ORD
30h 30m2 stops
 Logo
7:15 pm - 11:25 pmORD-BHX
22h 10m2 stops
Mon, Sep 1 - Wed, Sep 10
Delta Logo
9:05 am - 2:40 pmBHX-ORD
11h 35m1 stop
Delta Logo
10:15 am - 9:30 amORD-BHX
17h 15m2 stops
$716Delta
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Sat, Aug 30 - Tue, Sep 2
 Logo
7:00 am - 9:15 pmBHX-ORD
20h 15m2 stops
 Logo
7:25 pm - 7:15 pmORD-BHX
17h 50m3 stops
Mon, Sep 1 - Wed, Sep 10
Delta Logo
6:00 am - 2:40 pmBHX-ORD
14h 40m1 stop
Delta Logo
10:15 am - 9:30 amORD-BHX
17h 15m2 stops
$718Delta
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Mon, Sep 1 - Wed, Sep 10
KLM Logo
6:00 am - 2:40 pmBHX-ORD
14h 40m1 stop
KLM Logo
4:40 pm - 7:45 pmORD-BHX
21h 05m1 stop
$725KLM
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Mon, Sep 8 - Thu, Mar 5
KLM Logo
8:15 pm - 5:37 pmBHX-MDW
27h 22m2 stops
KLM Logo
1:00 pm - 12:50 pmMDW-BHX
17h 50m2 stops
$761KLM
Find Deal
Fri, Oct 3 - Fri, Oct 10
Virgin Atlantic Logo
9:05 am - 2:10 pmBHX-ORD
11h 05m1 stop
Virgin Atlantic Logo
10:25 am - 8:35 amORD-BHX
16h 10m2 stops
$806Virgin Atlantic
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Fri, Oct 3 - Fri, Oct 10
Virgin Atlantic Logo
9:05 am - 9:15 pmBHX-ORD
18h 10m2 stops
Virgin Atlantic Logo
10:25 am - 8:35 amORD-BHX
16h 10m2 stops
$832Virgin Atlantic
Find Deal
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 November, when tickets cost $638 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $980 and $868 respectively.

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

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

If you are looking for a flight deal from Birmingham to Illinois, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Illinois, Sunday is the cheapest day to fly and Saturday is the most expensive.

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 4 weeks before departure, which saves you about 29% 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$641
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 16% 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.

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

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $713 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 $789.

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 1225 reviews
6.5Food
7.3Boarding
8.0Crew
6.9Entertainment
7.1Comfort
Airline reviews

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

2.0 MediocreAnonymous, Aug 2025JFK - SAN
Read more Aer Lingus reviews

Not JetBlue's fault but Aer Lingus never explained how to transfer to JetBlue.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

Not satisfying due to loss Luguage for 4days. Damage Luguage that had no way to fill up a report for and me as a client to spend more money and time to replace it. Thank you for soliciting my opinion, but it was unfortunately a very disappointing experience. Stephanie Zvi

The seat pitch was a little tight for me, but I survived. There was a volatile, enraged passenger a couple of rows ahead of me and the cabin crew defused and resolved the situation calmly, quickly, and successfully.

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

When I booked the flight, I wasn't aware that this was a "no frills" flight. No wifi, no reclining seat, no complimentary soft drinks.

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

Information on your arrival and departure airports

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