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$64+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This FlightHub deal was found by Cheapflights users on 11/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:44 amORD - RDU
1 stop11h 28mFrontier
Sun 12/1410:00 amRDU - ORD
Nonstop2h 28mFrontier
Deal found 11/24$122
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Mon 12/1511:44 amORD - RDU
1 stop11h 28mFrontier
Mon 1/193:22 pmRDU - ORD
1 stop8h 22mFrontier
Deal found 11/25$129
This Frontier deal was found by Cheapflights users on 11/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:40 amORD - RDU
Nonstop2h 05mFrontier
Sun 12/710:00 amRDU - ORD
Nonstop2h 28mFrontier
Deal found 11/24$130
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Thu 12/115:00 amORD - RDU
2 stops18h 12mMultiple Airlines
Sun 12/1410:00 amRDU - ORD
Nonstop2h 28mMultiple Airlines
Deal found 11/24$131
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Thu 12/1812:39 pmORD - RDU
1 stop10h 34mFrontier
Mon 1/193:22 pmRDU - ORD
1 stop8h 22mFrontier
Deal found 11/25$135
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/248:15 amMDW - RDU
1 stop14h 58mFrontier
Thu 12/256:00 amRDU - MDW
1 stop12h 38mFrontier
Deal found 11/25$136
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/196:00 amORD - RDU
1 stop5h 20mFrontier
Mon 1/1911:43 amRDU - ORD
Nonstop2h 30mFrontier
Deal found 11/25$138
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:37 pmORD - RDU
Nonstop2h 11mUnited Airlines
Wed 12/318:29 amRDU - ORD
Nonstop2h 26mUnited Airlines
Deal found 11/24$139
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sun 12/216:10 amORD - RDU
Nonstop2h 05mFrontier
Sun 12/2810:10 amRDU - ORD
Nonstop2h 28mFrontier
Deal found 11/25$142
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sun 12/1410:24 amORD - RDU
1 stop12h 48mFrontier
Thu 1/156:10 amRDU - ORD
1 stop6h 58mFrontier
Deal found 11/25$144
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sun 12/216:10 amORD - RDU
Nonstop2h 05mFrontier
Wed 12/311:05 pmRDU - ORD
1 stop6h 28mFrontier
Deal found 11/25$145
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Thu 12/256:12 amMDW - RDU
1 stop17h 01mFrontier
Tue 12/306:14 pmRDU - MDW
1 stop21h 23mFrontier
Deal found 11/25$146

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$117
(Trip.com)

One-way from

$64
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$274

Good round-trip deal

$171 or less

Good one-way deal

$104 or less
Provider with most accurate pricing for Chicago (CHI)-Raleigh-Durham flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Raleigh-Durham flights.
Search Deals
From Illinois to Raleigh-Durham
Search Deals
One-way flight from Illinois to Raleigh-Durham
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Raleigh-Durham.
Search Deals
Price to beat on a one-way flight from Illinois to Raleigh-Durham.
Search Deals

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 November 26, 2025.
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

Thu 2/19

8:50 am-2:03 pm

1 stop4h 13m

Raleigh-Durham

Sat 2/21

6:34 am-8:05 am

Nonstop2h 31m

$145

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 1/8

3:43 pm-12:12 am

1 stop7h 29m

Raleigh-Durham

Tue 1/13

6:10 am-6:51 am

1 stop25h 41m

$154

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Thu 1/15

9:50 am-12:40 pm

Nonstop1h 50m

Raleigh-Durham

Tue 1/20

6:00 am-7:15 am

Nonstop2h 15m

$158

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Tue 12/2

2:49 pm-12:12 am

1 stop8h 23m

Raleigh-Durham

Wed 12/3

8:14 pm-9:58 pm

1 stop26h 44m

$162

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Sat 1/17

9:40 am-5:21 pm

1 stop6h 41m

Raleigh-Durham

Tue 1/20

2:51 pm-7:36 pm

1 stop5h 45m

$174

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Wed 12/24

6:05 pm-8:55 pm

Nonstop1h 50m

Raleigh-Durham

Thu 1/1

6:30 pm-7:35 pm

Nonstop2h 05m

$174

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Wed 12/24

6:02 pm-11:31 pm

1 stop4h 29m

Raleigh-Durham

Wed 12/31

5:30 am-9:01 am

1 stop4h 31m

$177

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Mon 2/2

6:07 pm-9:19 pm

Nonstop2h 12m

Raleigh-Durham

Wed 2/4

1:29 pm-2:55 pm

Nonstop2h 26m

$177

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Thu 1/8

1:25 pm-4:15 pm

Nonstop1h 50m

Raleigh-Durham

Sat 1/10

6:15 am-7:25 am

Nonstop2h 10m

$177

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 1/16

7:10 am-10:12 am

Nonstop2h 02m

Raleigh-Durham

Mon 1/19

10:00 am-11:26 am

Nonstop2h 26m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

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 $75). Flying from Illinois to Raleigh in March is currently the most expensive (average of $228). 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 November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Raleigh in the evening. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

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 December 16, 2024.

Travelers seeking maximum savings on their Illinois to Raleigh flight should consider departing on Friday at noon 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.

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. United Airlines provides one of the quickest options available for as low as $158. 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 $67. Users have also found prices from $70 and $70 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 United Airlines (91%), Air New Zealand (88%) or SWISS (83%) 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 $49. On average you can expect to pay $403. The most popular route, (Chicago O'Hare Intl - Raleigh-Durham), can usually be booked for $103.

  • 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 $75). Flying from Illinois to Raleigh in March is currently the most expensive (average of $228). 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
Smithfield
Dunn
Cary
Garner
Chapel Hill
Selma
Danville
Goldsboro
Henderson
Morrisville
Wilson
Pinehurst
Wake Forest
South Hill
Holly Springs

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Top 4 airlines flying from Illinois to Raleigh

Discover the top 4 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$218FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$334FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$162Average$336FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$177Average$380FlexibilityNo cancel feeOn-time71%

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