What airlines fly to Illinois?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Alabama according to our data. American Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Alabama to Illinois?

Frontier, Spirit Airlines, and Southwest are the most popular carriers operating from Alabama to Illinois

How many flights depart from Alabama to Illinois on average per day?

145 flights are operational daily from Alabama to Illinois as of August 2025. The most popular departure time for this route is 6:00AM, with 60% of flights per day taking off at noon.

How many flights depart from Alabama to Illinois on average per week?

The number of flights available between Alabama and Illinois is 1,020 per week as of August 2025. The most frequent departure day is Sun, with 21% of weekly flights leaving on this day.

How long is the flight from Alabama to Illinois?

The flight from Alabama to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Huntsville (a popular airport in Alabama) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h 08m on average. If you fly from Birmingham (another popular airport in Alabama) to Chicago O'Hare Intl Airport, then the average flight time is 2h 08m.

When did momondo last update prices for flights from Alabama to Illinois?

Prices for flights from Alabama to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Alabama to Illinois?

As of August 2025, there are 7 operators available to choose from for flights from Alabama to Illinois.

How old do you have to be to fly from Alabama to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alabama to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$34 Cheap Flights from Alabama to Illinois in 2025

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Find the cheapest flights from Alabama to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:06 pm - 4:26 pmATL-ORD

2h 20mnonstop

11:21 am - 2:11 pmORD-ATL

1h 50mnonstop

$70Spirit Airlines

Find Deal

mié., ago. 20 - mié., ago. 27

10:30 pm - 11:54 pmATL-ORD

2h 24mnonstop

5:10 am - 8:21 amORD-ATL

2h 11mnonstop

$78Frontier

Find Deal

lun., ago. 25 - dom., ago. 31

7:10 am - 9:00 amBHM-MDW

1h 50mnonstop

6:00 pm - 7:45 pmMDW-BHM

1h 45mnonstop

$121Southwest

Find Deal

mié., sep. 3 - mié., sep. 10

8:25 am - 9:10 amATL-STL

1h 45mnonstop

1:30 pm - 4:05 pmSTL-ATL

1h 35mnonstop

$136Southwest

Find Deal

vie., sep. 5 - lun., sep. 8

7:35 am - 8:14 amATL-STL

1h 39mnonstop

6:01 am - 8:35 amSTL-ATL

1h 34mnonstop

$147Delta

Find Deal

vie., sep. 19 - dom., sep. 21

8:35 am - 9:15 amATL-STL

1h 40mnonstop

6:00 am - 8:38 amSTL-ATL

1h 38mnonstop

$157Delta

Find Deal

jue., ago. 28 - jue., sep. 4

6:25 am - 8:44 amBHM-ORD

2h 19mnonstop

8:38 am - 10:34 amORD-BHM

1h 56mnonstop

$181American Airlines

Find Deal

sáb., ago. 30 - mar., sep. 2

7:00 am - 12:35 pmATL-STL

6h 35m1 stop

3:59 pm - 12:06 amSTL-ATL

7h 07m1 stop

$187American Airlines

Find Deal

jue., ago. 28 - jue., sep. 4

9:25 am - 11:49 amBHM-ORD

2h 24mnonstop

10:50 am - 12:52 pmORD-BHM

2h 02mnonstop

$205United Airlines

Find Deal

jue., sep. 4 - dom., sep. 7

2:01 pm - 3:04 pmCHA-ORD

2h 03mnonstop

8:45 am - 11:36 amORD-CHA

1h 51mnonstop

$227United Airlines

Find Deal

sáb., ago. 23 - dom., ago. 24

Spirit Airlines flights from Alabama to Illinois

Our best Spirit Airlines deals on Alabama to Illinois flight tickets

Spirit Airlines

Aug 20

ATL3:06 pmAtlanta Hartsfield-Jackson

2h 20m

ORD4:26 pmChicago O'Hare Intl

Aug 27

ORD11:21 amChicago O'Hare Intl

1h 50m

ATL2:11 pmAtlanta Hartsfield-Jackson

$70

Find similar

Spirit Airlines

Aug 20

ATL3:06 pmAtlanta Hartsfield-Jackson

2h 20m

ORD4:26 pmChicago O'Hare Intl

Aug 21

ORD11:21 amChicago O'Hare Intl

1h 50m

ATL2:11 pmAtlanta Hartsfield-Jackson

$79

Find similar

Spirit Airlines

Aug 30

ATL3:06 pmAtlanta Hartsfield-Jackson

2h 20m

ORD4:26 pmChicago O'Hare Intl

Sep 3

ORD11:21 amChicago O'Hare Intl

1h 50m

ATL2:11 pmAtlanta Hartsfield-Jackson

$83

Find similar

Frontier flights from Alabama to Illinois

Our best Frontier deals on Alabama to Illinois flight tickets

Frontier

Aug 25

ATL10:30 pmAtlanta Hartsfield-Jackson

2h 24m

ORD11:54 pmChicago O'Hare Intl

Aug 31

ORD5:10 amChicago O'Hare Intl

2h 11m

ATL8:21 amAtlanta Hartsfield-Jackson

$78

Find similar

Frontier

Aug 13

ATL9:02 amAtlanta Hartsfield-Jackson

2h 23m

ORD10:25 amChicago O'Hare Intl

Aug 24

ORD5:10 amChicago O'Hare Intl

2h 11m

ATL8:21 amAtlanta Hartsfield-Jackson

$82

Find similar

Frontier

Sep 26

ATL10:25 pmAtlanta Hartsfield-Jackson

1h 55m

MDW11:20 pmChicago Midway

Sep 29

MDW6:20 amChicago Midway

2h 07m

ATL9:27 amAtlanta Hartsfield-Jackson

$84

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

mié. 8/20

3:06 pm-4:26 pm

Nonstop2h 20m

Chicago O'Hare Intl

mié. 8/27

11:21 am-2:11 pm

Nonstop1h 50m

$70

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

lun. 8/25

10:30 pm-11:54 pm

Nonstop2h 24m

Chicago O'Hare Intl

dom. 8/31

5:10 am-8:21 am

Nonstop2h 11m

$78

BirminghamChicago

BHM - MDW

BHMMDW

Birmingham

mié. 9/3

7:10 am-9:00 am

Nonstop1h 50m

Chicago Midway

mié. 9/10

6:00 pm-7:45 pm

Nonstop1h 45m

$121

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 9/5

8:25 am-9:10 am

Nonstop1h 45m

Lambert-St Louis

lun. 9/8

1:30 pm-4:05 pm

Nonstop1h 35m

$136

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 9/19

7:35 am-8:14 am

Nonstop1h 39m

Lambert-St Louis

dom. 9/21

6:01 am-8:35 am

Nonstop1h 34m

$147

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

jue. 8/28

8:35 am-9:15 am

Nonstop1h 40m

Lambert-St Louis

jue. 9/4

6:00 am-8:38 am

Nonstop1h 38m

$157

BirminghamChicago

BHM - ORD

BHMORD

Birmingham

sáb. 8/30

6:25 am-8:44 am

Nonstop2h 19m

Chicago O'Hare Intl

mar. 9/2

8:38 am-10:34 am

Nonstop1h 56m

$181

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

jue. 8/28

7:00 am-12:35 pm

1 stop6h 35m

Lambert-St Louis

jue. 9/4

3:59 pm-12:06 am

1 stop7h 07m

$187

BirminghamChicago

BHM - ORD

BHMORD

Birmingham

jue. 9/4

9:25 am-11:49 am

Nonstop2h 24m

Chicago O'Hare Intl

dom. 9/7

10:50 am-12:52 pm

Nonstop2h 02m

$205

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

sáb. 8/23

2:01 pm-3:04 pm

Nonstop2h 03m

Chicago O'Hare Intl

dom. 8/24

8:45 am-11:36 am

Nonstop1h 51m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Alabama to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Alabama is in September. Flight prices, which tend to average around $281, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $315.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Alabama to Illinois is on a Thursday when prices can be found for as low as $424. Flights from Alabama to Illinois on a Sunday will generally be more expensive and average around $598. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Alabama to Illinois during this time can be as low as $290. Flights at noon are often more expensive with an average ticket price of $842.

What is the cheapest Alabama to Illinois flight route?

Fly from Birmingham to Chicago O'Hare Intl for the best Alabama - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Alabama when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $373 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Alabama for as low as $266 on momondo.

What cabin class options are available on Alabama to Illinois flights?

There are 4 cabin classes available to choose from on Alabama to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Alabama to Illinois flights?

No. A direct flight is the cheapest option for a flight between Alabama to Illinois.

Cheap Alabama to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Alabama to Illinois

Best Price Found	$34
Fastest flight time	1h 39m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Alabama in the past 72 hours is $34. The best round-trip flight deal from Alabama to Illinois found on momondo in the last 72 hours is $70.

The fastest flight from Alabama to Illinois takes 1h 39m

Direct flights go from Alabama to Illinois every day.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Alabama to Illinois?
Prices for flights from Alabama to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Alabama to Illinois?
As of August 2025, there are 7 operators available to choose from for flights from Alabama to Illinois.
How old do you have to be to fly from Alabama to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alabama to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Alabama to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Alabama to Illinois is Canadair (Bombardier) Regional Jet CRJ-550 (24.10% of total bookings). The next most popular plane models are Embraer 170 (13.72%), Canadair (Bombardier) Regional Jet 700 (13.11%), and Embraer 175 (11.33%).

Best airlines flying from Alabama to Illinois

Compare and see reviews for airlines that fly from Alabama to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $82	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Delta	PriceFrom $131	Free Cancellation	Rating 8.0 7,987 reviews	Search Delta flights
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $209	Free Cancellation	Rating 7.4 8,912 reviews	Search United Airlines flights
Southwest	PriceFrom $270	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Alabama to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Alabama.

Can I find flights from Alabama to Illinois with flexible booking policies on momondo?

Flights from Alabama to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Alabama to Illinois?

Once you have performed a search for Alabama to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Alabama to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Alabama are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Illinois

Popular cities in Illinois

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Cheap flights from Alabama to Illinois from $34

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Alabama to Illinois departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Alabama to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from Alabama to Illinois

Our best Spirit Airlines deals on Alabama to Illinois flight tickets

Frontier flights from Alabama to Illinois

Our best Frontier deals on Alabama to Illinois flight tickets

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Use the filters below to find and compare flights from Alabama to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Alabama to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Alabama to Illinois during this time can be as low as $290. Flights at noon are often more expensive with an average ticket price of $842.

What is the cheapest Alabama to Illinois flight route?

Fly from Birmingham to Chicago O'Hare Intl for the best Alabama - Illinois flight prices

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

What cabin class options are available on Alabama to Illinois flights?

There are 4 cabin classes available to choose from on Alabama to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Alabama to Illinois flights?

No. A direct flight is the cheapest option for a flight between Alabama to Illinois.

What is the cheapest airline that flies from Alabama to Illinois?

Frontier, Spirit Airlines, and Southwest are the most popular carriers operating from Alabama to Illinois

What airlines fly to Illinois?

How many flights depart from Alabama to Illinois on average per day?

145 flights are operational daily from Alabama to Illinois as of August 2025. The most popular departure time for this route is 6:00AM, with 60% of flights per day taking off at noon.

How many flights depart from Alabama to Illinois on average per week?

The number of flights available between Alabama and Illinois is 1,020 per week as of August 2025. The most frequent departure day is Sun, with 21% of weekly flights leaving on this day.

How long is the flight from Alabama to Illinois?

Cheap Alabama to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Alabama to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Alabama to Illinois?

How many operators does momondo search for flights from Alabama to Illinois?

How old do you have to be to fly from Alabama to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Alabama to Illinois?

Best airlines flying from Alabama to Illinois

Compare and see reviews for airlines that fly from Alabama to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Alabama to Illinois?

Can I find flights from Alabama to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Alabama to Illinois?

I’m not ready to book a flight from Alabama to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo