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

The number of flights available between Raleigh and Illinois is 199 per week as of December 2025. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.

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 48% 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 December 2025, there are 28 flights per day flying from Raleigh to Illinois. The most common time of day flights depart is 1:00PM, with 53% of flights taking off in the afternoon.

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

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

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 December 2025.

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.

$46 Cheap Flights from Raleigh to Illinois in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Raleigh to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 6:51 am

RDU

STL

25h 41m1 stop

8:32 pm - 8:27 am

STL

RDU

10h 55m1 stop

$110Frontier

Tue, Jan 13 - Sat, Jan 17

4:35 pm - 11:23 pm

RDU

ORD

7h 48m1 stop

9:15 am - 6:06 pm

ORD

RDU

7h 51m1 stop

$113Frontier

Fri, Jan 23 - Sat, Jan 24

10:00 am - 5:43 pm

RDU

ORD

8h 43m1 stop

5:35 am - 8:40 am

ORD

RDU

2h 05mnonstop

$121Multiple Airlines

Fri, Jan 9 - Mon, Jan 12

6:10 am - 10:33 pm

RDU

STL

17h 23m2 stops

8:32 pm - 8:27 am

STL

RDU

10h 55m1 stop

$139Multiple Airlines

Wed, Jan 7 - Wed, Jan 14

1:00 pm - 4:26 pm

RDU

MLI

4h 26m1 stop

5:51 am - 11:07 am

MLI

RDU

4h 16m1 stop

$240Delta

Sat, Jan 17 - Wed, Jan 21

9:26 am - 2:53 pm

RDU

PIA

6h 27m1 stop

8:08 pm - 2:58 am

PIA

RDU

5h 50m1 stop

$249American Airlines

Thu, Dec 25 - Sun, Jan 4

6:35 am - 1:24 pm

RDU

MLI

7h 49m1 stop

5:59 am - 11:06 am

MLI

RDU

4h 07m1 stop

$249American Airlines

Tue, Feb 17 - Wed, Feb 25

9:25 am - 4:43 pm

RDU

PIA

8h 18m2 stops

3:00 pm - 11:44 pm

PIA

RDU

7h 44m2 stops

$259United Airlines

Thu, Jan 8 - Sun, Jan 11

6:31 am - 10:12 am

RDU

MLI

4h 41m1 stop

3:45 pm - 9:18 pm

MLI

RDU

4h 33m1 stop

$269United Airlines

Sun, Jan 4 - Sun, Jan 11

11:30 am - 3:46 pm

RDU

EVV

5h 16m1 stop

4:26 pm - 11:57 pm

EVV

RDU

6h 31m1 stop

$467Delta

Thu, Dec 25 - Mon, Dec 29

Frontier flights from Raleigh to Illinois

Our best Frontier deals on Raleigh to Illinois flight tickets

Frontier

Jan 13

RDU6:10 amRaleigh-Durham

25h 41m

1 stop

STL6:51 amLambert-St Louis

Jan 17

STL8:32 pmLambert-St Louis

10h 55m

1 stop

RDU8:27 amRaleigh-Durham

$110

Find similar

Frontier

Jan 23

RDU4:35 pmRaleigh-Durham

7h 48m

1 stop

ORD11:23 pmChicago O'Hare Intl

Jan 24

ORD9:15 amChicago O'Hare Intl

7h 51m

1 stop

RDU6:06 pmRaleigh-Durham

$113

Find similar

Frontier

Jan 22

RDU10:43 amRaleigh-Durham

29h 41m

1 stop

ORD3:24 pmChicago O'Hare Intl

Jan 25

ORD4:19 pmChicago O'Hare Intl

25h 10m

1 stop

RDU6:29 pmRaleigh-Durham

$114

Find similar

American Airlines flights from Raleigh to Illinois

Our best American Airlines deals on Raleigh to Illinois flight tickets

American Airlines

Dec 25

RDU6:00 amRaleigh-Durham

2h 30m

ORD7:30 amChicago O'Hare Intl

Dec 25

ORD1:38 pmChicago O'Hare Intl

2h 11m

RDU4:49 pmRaleigh-Durham

$202

Find similar

American Airlines

Dec 24

RDU4:16 pmRaleigh-Durham

4h 06m

1 stop

ORD7:22 pmChicago O'Hare Intl

Dec 25

ORD7:00 amChicago O'Hare Intl

2h 08m

RDU10:08 amRaleigh-Durham

$223

Find similar

American Airlines

Dec 24

RDU9:26 amRaleigh-Durham

2h 27m

ORD10:53 amChicago O'Hare Intl

Dec 25

ORD7:00 amChicago O'Hare Intl

2h 08m

RDU10:08 amRaleigh-Durham

$247

Find similar

Fly from

Fly to

Route

Depart

Return

Price

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Tue 1/13

6:10 am-6:51 am

1 stop25h 41m

Lambert-St Louis

Sat 1/17

8:32 pm-8:27 am

1 stop10h 55m

$110

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 1/23

4:35 pm-11:23 pm

1 stop7h 48m

Chicago O'Hare Intl

Sat 1/24

9:15 am-6:06 pm

1 stop7h 51m

$113

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 1/9

10:00 am-5:43 pm

1 stop8h 43m

Chicago O'Hare Intl

Mon 1/12

5:35 am-8:40 am

Nonstop2h 05m

$121

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Wed 1/7

6:10 am-10:33 pm

2 stops17h 23m

Lambert-St Louis

Wed 1/14

8:32 pm-8:27 am

1 stop10h 55m

$139

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

Sat 1/17

1:00 pm-4:26 pm

1 stop4h 26m

Moline Quad-City

Wed 1/21

5:51 am-11:07 am

1 stop4h 16m

$240

RaleighPeoria

RDU - PIA

RDUPIA

Raleigh-Durham

Thu 12/25

9:26 am-2:53 pm

1 stop6h 27m

Greater Peoria

Sun 1/4

8:08 pm-2:58 am

1 stop5h 50m

$249

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

Tue 2/17

6:35 am-1:24 pm

1 stop7h 49m

Moline Quad-City

Wed 2/25

5:59 am-11:06 am

1 stop4h 07m

$249

RaleighPeoria

RDU - PIA

RDUPIA

Raleigh-Durham

Thu 1/8

9:25 am-4:43 pm

2 stops8h 18m

Greater Peoria

Sun 1/11

3:00 pm-11:44 pm

2 stops7h 44m

$259

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

Sun 1/4

6:31 am-10:12 am

1 stop4h 41m

Moline Quad-City

Sun 1/11

3:45 pm-9:18 pm

1 stop4h 33m

$269

RaleighEvansville

RDU - EVV

RDUEVV

Raleigh-Durham

Thu 12/25

11:30 am-3:46 pm

1 stop5h 16m

Evansville Dress Regional

Mon 12/29

4:26 pm-11:57 pm

1 stop6h 31m

$467

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 August. 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 August, then flying in October 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 $357. Flights from Raleigh to Illinois on a Sunday will generally be more expensive and average around $564. 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 $325. Flights at noon are often more expensive with an average ticket price of $527.

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 $287 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 $213 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	$115
Fastest flight time	1h 55m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Raleigh in the past 72 hours is $115. The best round-trip flight deal from Raleigh to Illinois found on momondo in the last 72 hours is $271.

The fastest flight from Raleigh to Illinois takes 1h 55m

Direct flights go from Raleigh to Illinois every day.

There are 98 airports in Illinois. From Raleigh there are direct flights to Chicago O'Hare Intl (ORD), 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 December 2025.
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 14.80% of the total bookings. Other popular models include Boeing 737 MAX 9 with 13.64%, Boeing 737-800 with 11.84%, and Airbus A319 with 10.40%.

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 $76	Free Cancellation	Rating 5.8 3,084 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $81	Free Cancellation	Rating 6.3 8,180 reviews	Search Spirit Airlines flights
Delta	PriceFrom $98	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
United Airlines	PriceFrom $162	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
American Airlines	PriceFrom $173	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Southwest	PriceFrom $177	Free Cancellation	Rating 7.9 4,253 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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 1/10

Sat 1/17

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $34

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $49

Flights to Orlandofrom $41

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $49

Flights to Bostonfrom $55

Flights to Atlantafrom $49

Flights to Dallasfrom $52

Flights to Seattlefrom $58

Cheap flights from Raleigh to Illinois from $46

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 1/13. 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

Price Alerts

Price Alerts

Find the cheapest flights from Raleigh to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Raleigh to Illinois

Our best Frontier deals on Raleigh to Illinois flight tickets

American Airlines flights from Raleigh to Illinois

Our best American Airlines deals on Raleigh to Illinois flight tickets

momondo Fare Finder

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

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?

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 $325. Flights at noon are often more expensive with an average ticket price of $527.

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?

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.

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

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

What airlines fly to Illinois?

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

As of December 2025, there are 28 flights per day flying from Raleigh to Illinois. The most common time of day flights depart is 1:00PM, with 53% of flights taking off in the afternoon.

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

The number of flights available between Raleigh and Illinois is 199 per week as of December 2025. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.

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

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

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

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

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

What is the most popular plane model from Raleigh to 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?

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

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

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

I’m not ready to book a flight from Raleigh 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