$284 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 5/13. 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

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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Best Illinois Flight Deals from Birmingham

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago2 stops$530
St. Louis
St. Louis1 stop$1,077

Cheap Flight Deals from Birmingham to Illinois (BHX-USIL)

 
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.

Recent round-trip flight deals from Birmingham to Illinois

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Birmingham to Illinois.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
9:05 pm - 6:15 pmBHX-ORD
27h 10m2 stops
7:25 pm - 11:25 pmORD-BHX
22h 00m2 stops
mar, apr 29 - mar, mag 6
8:55 am - 6:15 pmBHX-ORD
15h 20m2 stops
7:25 pm - 6:35 pmORD-BHX
17h 10m3 stops
mar, apr 29 - mar, mag 6
5:55 am - 11:32 amBHX-ORD
35h 37m2 stops
10:40 am - 5:15 pmORD-BHX
24h 35m2 stops
$661United Airlines
Find Deal
ven, mag 16 - lun, mag 19
9:05 am - 2:10 pmBHX-ORD
11h 05m1 stop
4:20 pm - 4:50 pmORD-BHX
18h 30m1 stop
$679KLM
Find Deal
ven, mag 16 - lun, mag 19
1:05 pm - 7:55 pmBHX-ORD
12h 50m1 stop
7:00 am - 5:15 pmORD-BHX
28h 15m2 stops
$685United Airlines
Find Deal
ven, mag 16 - lun, mag 19
6:00 am - 2:22 pmBHX-MDW
14h 22m2 stops
3:02 pm - 1:40 pmMDW-BHX
16h 38m2 stops
$688Delta
Find Deal
mar, apr 29 - mar, mag 6
8:10 am - 7:00 pmBHX-ORD
16h 50m1 stop
9:15 pm - 7:45 pmORD-BHX
16h 30m1 stop
$761Aer Lingus
Find Deal
ven, mag 16 - lun, mag 26
6:00 am - 6:45 pmBHX-MDW
18h 45m2 stops
1:55 pm - 12:45 pmMDW-BHX
16h 50m2 stops
$768Delta
Find Deal
ven, mag 16 - lun, mag 26
8:10 am - 7:00 pmBHX-ORD
16h 50m1 stop
10:20 pm - 6:10 pmORD-BHX
13h 50m1 stop
$928Aer Lingus
Find Deal
mar, ago 19 - mer, set 3
1:20 pm - 2:10 pmBHX-ORD
30h 50m1 stop
4:50 pm - 9:25 pmORD-BHX
22h 35m1 stop
$1,273KLM
Find Deal
sab, lug 26 - mer, ago 20

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 time of day to fly to Illinois?

The average price for all round-trip flights from Birmingham 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 $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.

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 $631 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $957 and $867 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. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$284
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 14% 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.

See more FAQs

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.
7.0
Aer LingusOverall score based on 1061 reviews
7.2Boarding
6.7Entertainment
7.0Comfort
7.9Crew
6.4Food
Airline reviews

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

10.0 ExcellentRALPH, Feb 2025BOS - TPA
Read more Aer Lingus reviews

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

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.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

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

Information on your arrival and departure airports

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