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$67+ Cheap flights from Illinois to Raleigh (RDU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDU
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap flight deals from Illinois to Raleigh

Keep the following information in mind while searching for Illinois to Raleigh flight deals. Data was last updated January 19, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$133
(Kiwi.com)

One-way from

$67
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$298

Good round-trip deal

$234 or less

Good one-way deal

$128 or less
Provider with most accurate pricing for Chicago (CHI)-Raleigh-Durham flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Raleigh-Durham flights.
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From Illinois to Raleigh-Durham
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One-way flight from Illinois to Raleigh-Durham
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Highest demand for flights based on searches. 24% potential increase in price ($87 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Illinois to Raleigh-Durham.
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Price to beat on a one-way flight from Illinois to Raleigh-Durham.
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Find flight deals from Illinois to Raleigh

Cheapest flights from Illinois to Raleigh
Explore the most affordable flight options available from Illinois to Raleigh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/183:49 pm
STL
-
RDU
1 stop17h 04m
Frontier
Thu 2/196:50 pm
RDU
-
STL
1 stop13h 01m
Frontier
Deal found 1/18$133
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:19 pm
ORD
-
RDU
Nonstop2h 03m
Multiple Airlines
Sun 3/17:55 am
RDU
-
ORD
1 stop24h 59m
Multiple Airlines
Deal found 1/19$156
This Kiwi.com deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/308:22 pm
STL
-
RDU
1 stop26h 34m
Frontier
Tue 2/37:10 am
RDU
-
STL
1 stop24h 41m
Frontier
Deal found 1/18$157
This Kiwi.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
ORD
-
RDU
1 stop6h 13m
Multiple Airlines
Tue 3/36:25 am
RDU
-
ORD
1 stop5h 26m
Multiple Airlines
Deal found 1/16$158
This Kiwi.com deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/319:15 am
ORD
-
RDU
1 stop7h 51m
Frontier
Tue 2/37:10 am
RDU
-
ORD
1 stop7h 48m
Frontier
Deal found 1/17$159
This Priceline deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3112:12 pm
STL
-
RDU
1 stop6h 08m
Frontier
Tue 2/32:54 pm
RDU
-
STL
1 stop9h 39m
Frontier
Deal found 1/17$160
This Super.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:01 pm
MDW
-
RDU
1 stop6h 10m
Frontier
Mon 2/96:10 am
RDU
-
MDW
1 stop6h 35m
Frontier
Deal found 1/16$160
This Priceline deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:42 pm
ORD
-
RDU
1 stop8h 29m
Frontier
Mon 2/95:23 pm
RDU
-
ORD
1 stop5h 04m
Frontier
Deal found 1/17$160
This Kiwi.com deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:53 pm
MDW
-
RDU
2 stops20h 18m
Multiple Airlines
Mon 3/25:10 pm
RDU
-
MDW
1 stop6h 19m
Multiple Airlines
Deal found 1/18$161
This CheapOair deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/911:51 am
ORD
-
RDU
1 stop28h 08m
Frontier
Thu 2/126:05 am
RDU
-
ORD
1 stop5h 46m
Frontier
Deal found 1/17$161
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:45 am
MDW
-
RDU
1 stop6h 49m
Frontier
Thu 2/266:55 pm
RDU
-
MDW
1 stop24h 43m
Frontier
Deal found 1/19$162
This Mytrip deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:19 pm
ORD
-
RDU
Nonstop2h 03m
Frontier
Sat 3/76:43 pm
RDU
-
ORD
1 stop15h 00m
Frontier
Deal found 1/17$162

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Raleigh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 19, 2026.
Use the filters below to find and compare flights from Illinois to Raleigh that are best for you.

Fly from

Illinois

Fly to

Raleigh

Route

Depart

Return

Price

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Tue 2/24

10:00 am-5:38 pm

1 stop6h 38m

Raleigh-Durham

Sun 3/1

6:15 am-12:04 pm

1 stop6h 49m

$174

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Tue 2/3

5:42 pm-11:51 pm

2 stops29h 09m

Raleigh-Durham

Sun 2/8

6:10 am-6:51 am

1 stop25h 41m

$203

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sat 2/21

9:41 am-8:30 pm

1 stop9h 49m

Raleigh-Durham

Wed 2/25

2:53 pm-10:27 pm

1 stop8h 34m

$205

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sat 2/28

8:17 pm-3:45 pm

1 stop18h 28m

Raleigh-Durham

Thu 3/5

4:04 pm-11:59 pm

1 stop8h 55m

$207

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 2/19

3:49 pm-10:28 am

1 stop17h 39m

Raleigh-Durham

Sun 2/22

4:30 pm-6:51 am

1 stop15h 21m

$209

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Sat 2/21

9:41 am-8:30 pm

1 stop9h 49m

Raleigh-Durham

Mon 2/23

4:04 pm-11:59 pm

1 stop8h 55m

$221

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Wed 2/4

5:42 pm-8:51 pm

1 stop26h 09m

Raleigh-Durham

Sun 2/8

9:56 pm-11:33 pm

1 stop26h 37m

$225

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Fri 2/27

6:00 am-5:59 pm

1 stop10h 59m

Raleigh-Durham

Mon 3/2

5:10 pm-10:29 pm

1 stop6h 19m

$231

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Sat 3/7

6:45 pm-9:35 pm

Nonstop1h 50m

Raleigh-Durham

Tue 3/10

6:30 pm-7:35 pm

Nonstop2h 05m

$233

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Sat 4/11

3:45 pm-6:35 pm

Nonstop1h 50m

Raleigh-Durham

Sun 4/12

8:00 am-9:00 am

Nonstop2h 00m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Raleigh

Have a flexible travel schedule? Discover the best time to fly to Raleigh from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Raleigh

What is the cheapest month to book a flight from Illinois to Raleigh?

Currently, October is the cheapest month in which you can book a flight from Illinois to Raleigh (average of $74). Flying from Illinois to Raleigh in March is currently the most expensive (average of $212). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to RDU?

Find hourly flight availability from Illinois to Raleigh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 19, 2026.

A simple way to save on the total cost of your ticket is to fly from Illinois to Raleigh at noon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Illinois to Raleigh?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Raleigh. Price data was last updated on January 17, 2026.

Travelers seeking maximum savings on their Illinois to Raleigh flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Raleigh

Explore weekly flight availability from Illinois to Raleigh. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 19, 2026.

The most flights from USIL to RDU are scheduled on a Friday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Raleigh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Raleigh from Illinois?

    Raleigh-Durham (RDU), located 11.1 mi from the city center, is the airport you fly into when you book flights from Illinois to Raleigh.

  • How long is the flight from Illinois to Raleigh?

    A quick flight from Illinois to Raleigh can take about 1h 50m. JetBlue provides one of the quickest options available for as low as $233. Airlines will cover a distance of 631 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Raleigh one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $49. Users have also found prices from $79 and $87 on Southwest and United Airlines, respectively.

  • What are the most popular routes from Illinois to Raleigh?

    The most popular route from Illinois to Raleigh is Chicago O'Hare Intl - Raleigh-Durham. You may also consider Chicago Midway - Raleigh-Durham or Lambert-St Louis - Raleigh-Durham.

  • What are the most reliable airlines from Illinois to Raleigh?

    No one likes to see their flight delayed. When booking a flight from Illinois to Raleigh consider choosing PSA Airlines (100%), Envoy Air (81%) or Air New Zealand (78%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Raleigh?

    The cheapest flight price from Illinois to Raleigh is $88. On average you can expect to pay $230. The most popular route, (Chicago O'Hare Intl - Raleigh-Durham), can usually be booked for $108.

  • Can I find deals for flights from Illinois to Raleigh that include hotel bookings?

    Yes. In addition to deals on Illinois to Raleigh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Raleigh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Raleigh.

  • Can I find deals for business class flights from Illinois to Raleigh?

    Yes. Cheapflights offers flight deals from Illinois to Raleigh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Raleigh?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Raleigh (average of $74). Flying from Illinois to Raleigh in March is currently the most expensive (average of $212). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Raleigh?

Book flights to Raleigh if you plan to visit one of these locations
Rocky Mount
Cary
Smithfield
Garner
Danville
Goldsboro
Selma
Henderson
Chapel Hill
Morrisville
Wilson
Pinehurst
Dunn
Wake Forest
South Hill
Holly Springs

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Alternative routes for Illinois to Raleigh

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Raleigh

Discover the top 5 airlines that operate flights from Illinois to Raleigh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$219FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$157Average$333FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$166Average$199FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$172Average$382FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$174Average$326FlexibilityNo cancel feeOn-time63%

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