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

The number of flights available between Raleigh and Illinois is 207 per week as of March 2026. The most frequent departure day is Fri, with 18% of weekly flights leaving on this day.

What is the cheapest airline that flies from Raleigh-Durham to Illinois?

Frontier, United Airlines, and Southwest are the most popular carriers operating from Raleigh-Durham to Illinois

What airlines fly to Illinois?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from Raleigh according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

As of March 2026, there are 29 flights per day flying from Raleigh to Illinois. The most common time of day flights depart is 6:00AM, with 51% of flights taking off in the afternoon.

When did momondo last update prices for flights from Raleigh-Durham Airport to Illinois?

Prices for flights from Raleigh-Durham Airport to Illinois are updated daily.

How many operators does momondo search for flights from Raleigh-Durham Airport to Illinois?

The number of operators available for flights from Raleigh-Durham Airport to Illinois is 6 as of March 2026.

How old do you have to be to fly from Raleigh-Durham Airport 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 Raleigh-Durham Airport to Illinois.

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

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$64 Cheap Flights from Raleigh to Illinois in 2026

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Find the cheapest flights from Raleigh to Illinois

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:54 pm - 8:55 am

RDU

STL

21h 01m

1 stop

5:27 pm - 12:33 am

STL

RDU

6h 06m

1 stop

$148Frontier

dim., mai 17 - mer., mai 20

3:57 pm - 5:34 pm

RDU

STL

26h 37m

1 stop

8:23 pm - 8:23 am

STL

RDU

11h 00m

1 stop

$153Frontier

mer., avr. 8 - mer., avr. 15

5:11 pm - 6:30 pm

RDU

ORD

2h 19mnonstop

7:15 pm - 10:55 pm

ORD

RDU

26h 40m

2 stops

$162Multiple Airlines

lun., avr. 13 - mer., avr. 15

3:57 pm - 10:39 pm

RDU

ORD

7h 42m

1 stop

7:17 am - 6:44 pm

ORD

RDU

10h 27m

1 stop

$163Multiple Airlines

lun., avr. 13 - mar., avr. 14

1:28 pm - 6:34 pm

RDU

PIA

6h 06m

1 stop

6:54 pm - 11:58 pm

PIA

RDU

4h 04m

1 stop

$291American Airlines

mar., mai 5 - sam., mai 9

3:50 pm - 11:13 pm

RDU

PIA

8h 23m

1 stop

1:22 pm - 9:55 pm

PIA

RDU

7h 33m

2 stops

$296American Airlines

mar., mai 5 - sam., mai 9

5:25 pm - 9:12 pm

RDU

MLI

4h 47m

1 stop

6:30 am - 12:10 pm

MLI

RDU

4h 40m

1 stop

$309United Airlines

mer., avr. 22 - mar., avr. 28

10:07 am - 2:09 pm

RDU

MLI

5h 02m

1 stop

8:00 am - 6:10 pm

MLI

RDU

9h 10m

2 stops

$314United Airlines

mer., avr. 22 - mar., avr. 28

5:20 am - 9:26 am

RDU

EVV

5h 06m

1 stop

10:05 am - 5:04 pm

EVV

RDU

5h 59m

1 stop

$417Delta

mer., juin 24 - lun., juin 29

5:20 am - 9:26 am

RDU

EVV

5h 06m

1 stop

5:45 pm - 10:50 pm

EVV

RDU

4h 05m

1 stop

$427Delta

jeu., juil. 2 - lun., juil. 6

Spirit Airlines flights from Raleigh to Illinois

Our best Spirit Airlines deals on Raleigh to Illinois flight tickets

Spirit Airlines

May 7

RDU6:03 pmRaleigh-Durham

16h 28m

1 stop

ORD9:31 amChicago O'Hare Intl

May 10

ORD5:05 amChicago O'Hare Intl

11h 03m

1 stop

RDU5:08 pmRaleigh-Durham

$186

Spirit Airlines

Apr 7

RDU6:25 pmRaleigh-Durham

6h 57m

1 stop

ORD12:22 amChicago O'Hare Intl

Apr 10

ORD6:01 pmChicago O'Hare Intl

22h 28m

1 stop

RDU5:29 pmRaleigh-Durham

$196

Spirit Airlines

Apr 11

RDU6:25 pmRaleigh-Durham

6h 57m

1 stop

ORD12:22 amChicago O'Hare Intl

Apr 18

ORD9:44 pmChicago O'Hare Intl

21h 48m

2 stops

RDU8:32 pmRaleigh-Durham

$203

Frontier flights from Raleigh to Illinois

Our best Frontier deals on Raleigh to Illinois flight tickets

Frontier

Apr 21

RDU4:00 pmRaleigh-Durham

15h 50m

1 stop

STL6:50 amLambert-St Louis

Apr 22

STL8:23 pmLambert-St Louis

11h 00m

1 stop

RDU8:23 amRaleigh-Durham

$131

Frontier

May 17

RDU12:54 pmRaleigh-Durham

21h 01m

1 stop

STL8:55 amLambert-St Louis

May 20

STL5:27 pmLambert-St Louis

6h 06m

1 stop

RDU12:33 amRaleigh-Durham

$148

Frontier

Apr 8

RDU3:57 pmRaleigh-Durham

26h 37m

1 stop

STL5:34 pmLambert-St Louis

Apr 15

STL8:23 pmLambert-St Louis

11h 00m

1 stop

RDU8:23 amRaleigh-Durham

$153

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

dim. 5/17

12:54 pm-8:55 am

1 stop21h 01m

Lambert-St Louis

mer. 5/20

5:27 pm-12:33 am

1 stop6h 06m

$148

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

mer. 4/8

3:57 pm-5:34 pm

1 stop26h 37m

Lambert-St Louis

mer. 4/15

8:23 pm-8:23 am

1 stop11h 00m

$153

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

lun. 4/13

5:11 pm-6:30 pm

Nonstop2h 19m

Chicago O'Hare Intl

mer. 4/15

7:15 pm-10:55 pm

2 stops26h 40m

$162

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

lun. 4/13

3:57 pm-10:39 pm

1 stop7h 42m

Chicago O'Hare Intl

mar. 4/14

7:17 am-6:44 pm

1 stop10h 27m

$163

RaleighPeoria

RDU - PIA

RDUPIA

Raleigh-Durham

mar. 5/5

1:28 pm-6:34 pm

1 stop6h 06m

Greater Peoria

sam. 5/9

6:54 pm-11:58 pm

1 stop4h 04m

$291

RaleighPeoria

RDU - PIA

RDUPIA

Raleigh-Durham

mar. 5/5

3:50 pm-11:13 pm

1 stop8h 23m

Greater Peoria

sam. 5/9

1:22 pm-9:55 pm

2 stops7h 33m

$296

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

mer. 4/22

5:25 pm-9:12 pm

1 stop4h 47m

Moline Quad-City

mar. 4/28

6:30 am-12:10 pm

1 stop4h 40m

$309

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

mer. 4/22

10:07 am-2:09 pm

1 stop5h 02m

Moline Quad-City

mar. 4/28

8:00 am-6:10 pm

2 stops9h 10m

$314

RaleighEvansville

RDU - EVV

RDUEVV

Raleigh-Durham

mer. 6/24

5:20 am-9:26 am

1 stop5h 06m

Evansville Dress Regional

lun. 6/29

10:05 am-5:04 pm

1 stop5h 59m

$417

Quickest round-trip

RaleighEvansville

RDU - EVV

RDUEVV

Raleigh-Durham

jeu. 7/2

5:20 am-9:26 am

1 stop5h 06m

Evansville Dress Regional

lun. 7/6

5:45 pm-10:50 pm

1 stop4h 05m

$427

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 Raleigh 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 Raleigh is in December. Flight prices, which tend to average around $217, 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 December, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $218.

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

The cheapest day to depart from Raleigh to Illinois is on a Thursday when prices can be found for as low as $332. Flights from Raleigh to Illinois on a Sunday will generally be more expensive and average around $490. 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 Raleigh to Illinois during this time can be as low as $296. Flights at noon are often more expensive with an average ticket price of $455.

What is the cheapest Raleigh-Durham to Illinois flight route?

Fly from Raleigh-Durham to Chicago O'Hare Intl for the best Raleigh-Durham - 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 Raleigh when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $276 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Raleigh for as low as $211 on momondo.

What cabin class options are available on Raleigh-Durham to Illinois flights?

There are 4 cabin classes available to choose from on Raleigh-Durham 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 Raleigh to Illinois flights?

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

Cheap Raleigh to Illinois flight deals and tips

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

Best Price Found	$154
Fastest flight time	1h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Raleigh in the past 72 hours is $154. The best round-trip flight deal from Raleigh to Illinois found on momondo in the last 72 hours is $287.

The fastest flight from Raleigh to Illinois takes 1h 50m

Direct flights go from Raleigh to Illinois every day.

There are 98 airports in Illinois. From Raleigh there are direct flights to Chicago Midway (MDW), Lambert-St Louis (STL).

Search flight deals

When did momondo last update prices for flights from Raleigh-Durham Airport to Illinois?
Prices for flights from Raleigh-Durham Airport to Illinois are updated daily.
How many operators does momondo search for flights from Raleigh-Durham Airport to Illinois?
The number of operators available for flights from Raleigh-Durham Airport to Illinois is 6 as of March 2026.
How old do you have to be to fly from Raleigh-Durham Airport 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 Raleigh-Durham Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Raleigh to Illinois?
Based on momondo bookings for flights between Raleigh and Illinois, the leading plane model is Embraer 175, making up 15.91% of the total bookings. Other popular models include Airbus A319 with 15.72%, Boeing 737 MAX 8 with 12.13%, and Boeing 737-800 with 10.64%.

Best airlines flying from Raleigh to Illinois

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $73	Free Cancellation	Rating 5.7 3,032 reviews	Search Frontier flights
Delta	PriceFrom $98	Free Cancellation	Rating 7.9 8,292 reviews	Search Delta flights
United Airlines	PriceFrom $147	Free Cancellation	Rating 7.4 9,429 reviews	Search United Airlines flights
JetBlue	PriceFrom $160	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
American Airlines	PriceFrom $170	Free Cancellation	Rating 7.1 11,471 reviews	Search American Airlines flights
Southwest	PriceFrom $177	Free Cancellation	Rating 8.0 4,318 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Raleigh to Illinois for you.

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

Flights from Raleigh 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 Raleigh to Illinois?

Once you have performed a search for Raleigh 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 Raleigh to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Raleigh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Illinois trip

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Flights to Las Vegasfrom $23

Flights to Washington, D.C.from $56

Flights to Bostonfrom $78

Flights to Atlantafrom $49

Flights to Dallasfrom $56

Flights to Seattlefrom $55

Cheap flights from Raleigh to Illinois from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Raleigh to Illinois departing on 3/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to Illinois from

How to get the cheapest flight ticket from Raleigh to Illinois

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?

What is the cheapest Raleigh-Durham to Illinois flight route?

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

What cabin class options are available on Raleigh-Durham to Illinois flights?

Can stopping save me money on Raleigh to Illinois flights?

What is the cheapest airline that flies from Raleigh-Durham to Illinois?

What airlines fly to Illinois?

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

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

Cheap Raleigh to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from Raleigh to Illinois

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

Why use momondo?

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

Raleigh flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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