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$60+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$135
(Mytrip)

One-way from

$60
(Priceline)

Popular in

March

Cheapest in

July

Average price

$187

Good round-trip deal

$197 or less

Good one-way deal

$119 or less
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. 23% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/3. 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 10/2311:32 amORD - RDU
Nonstop2h 06mFrontier
Sun 10/267:10 pmRDU - ORD
1 stop6h 00mFrontier
Deal found 7/3$134
This Priceline deal was found by Cheapflights users on 7/2. 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.
Fri 8/2910:58 amMDW - RDU
1 stop6h 25mFrontier
Mon 9/112:06 pmRDU - MDW
1 stop6h 59mFrontier
Deal found 7/2$139
This Priceline deal was found by Cheapflights users on 7/2. 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.
Fri 8/292:01 pmSTL - RDU
1 stop7h 27mFrontier
Mon 9/16:10 amRDU - STL
1 stop7h 46mFrontier
Deal found 7/2$140
This FlightHub deal was found by Cheapflights users on 7/2. 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.
Fri 9/125:05 amORD - RDU
1 stop8h 30mMultiple Airlines
Mon 9/153:36 pmRDU - ORD
Nonstop2h 26mMultiple Airlines
Deal found 7/2$148
This Southwest deal was found by Cheapflights users on 7/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/159:30 amMDW - RDU
Nonstop1h 55mSouthwest
Mon 8/187:00 amRDU - MDW
Nonstop1h 55mSouthwest
Deal found 7/3$177
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 8/291:55 pmORD - RDU
Nonstop2h 09mUnited Airlines
Mon 9/16:30 amRDU - ORD
Nonstop2h 23mUnited Airlines
Deal found 7/3$177
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:45 pmORD - RDU
Nonstop2h 14mAmerican Airlines
Fri 8/223:20 pmRDU - ORD
Nonstop2h 34mAmerican Airlines
Deal found 7/1$178
This FlightHub deal was found by Cheapflights users on 7/1. 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 7/3110:47 amSTL - RDU
1 stop4h 25mSpirit Airlines
Sat 8/96:09 pmRDU - STL
1 stop16h 43mSpirit Airlines
Deal found 7/1$193
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:25 pmSTL - RDU
Nonstop1h 50mSouthwest
Mon 8/117:40 pmRDU - STL
Nonstop2h 05mSouthwest
Deal found 7/2$197
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:04 amMDW - RDU
1 stop4h 11mDelta
Sun 8/175:20 amRDU - MDW
1 stop5h 16mDelta
Deal found 7/2$197
This Orbitz deal was found by Cheapflights users on 7/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3110:47 amSTL - RDU
1 stop4h 25mMultiple Airlines
Sat 8/96:00 amRDU - STL
2 stops8h 59mMultiple Airlines
Deal found 7/1$201
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:00 amSTL - RDU
1 stop6h 03mDelta
Mon 8/119:49 amRDU - STL
1 stop4h 31mDelta
Deal found 7/2$207

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 July 3, 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 10/23

11:32 am-2:38 pm

Nonstop2h 06m

Raleigh-Durham

Sun 10/26

7:10 pm-12:10 am

1 stop6h 00m

$134

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Fri 8/29

10:58 am-6:23 pm

1 stop6h 25m

Raleigh-Durham

Mon 9/1

12:06 pm-6:05 pm

1 stop6h 59m

$139

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 8/29

2:01 pm-10:28 pm

1 stop7h 27m

Raleigh-Durham

Mon 9/1

6:10 am-12:56 pm

1 stop7h 46m

$140

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Thu 9/4

11:32 am-2:42 pm

Nonstop2h 10m

Raleigh-Durham

Sun 9/7

9:23 am-5:39 pm

1 stop9h 16m

$144

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Fri 8/15

9:30 am-12:25 pm

Nonstop1h 55m

Raleigh-Durham

Mon 8/18

7:00 am-7:55 am

Nonstop1h 55m

$177

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 8/29

1:55 pm-5:04 pm

Nonstop2h 09m

Raleigh-Durham

Mon 9/1

6:30 am-7:53 am

Nonstop2h 23m

$177

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 8/15

8:45 pm-11:59 pm

Nonstop2h 14m

Raleigh-Durham

Fri 8/22

3:20 pm-4:54 pm

Nonstop2h 34m

$178

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 7/31

10:47 am-4:12 pm

1 stop4h 25m

Raleigh-Durham

Sat 8/9

6:09 pm-9:52 am

1 stop16h 43m

$193

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Fri 8/15

6:04 am-11:15 am

1 stop4h 11m

Raleigh-Durham

Sun 8/17

5:20 am-9:36 am

1 stop5h 16m

$197

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 8/7

7:25 pm-10:15 pm

Nonstop1h 50m

Raleigh-Durham

Mon 8/11

7:40 pm-8:45 pm

Nonstop2h 05m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 48 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, August is the cheapest month in which you can book a flight from Illinois to Raleigh (average of $206). Flying from Illinois to Raleigh in March is currently the most expensive (average of $294). 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 July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Raleigh as you normally would.

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 July 3, 2025.

The most flights from USIL to RDU are scheduled on a Thursday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Raleigh

Get insights into the airlines that provide service to Raleigh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Raleigh. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Illinois to Raleigh. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Sun Country Air
6.9
Okay
339 reviews
Southwest
8.0
Very good
4,270 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • 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 $60. Users have also found prices from $83 and $89 on Spirit Airlines and Southwest, 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 (84%), Air New Zealand (81%) or Envoy Air (79%) 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 $83. On average you can expect to pay $210. The most popular route, (Chicago O'Hare Intl - Raleigh-Durham), can usually be booked for $125.

  • 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, August is the cheapest month in which you can book a flight from Illinois to Raleigh (average of $206). Flying from Illinois to Raleigh in March is currently the most expensive (average of $294). 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 Illinois?

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

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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 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$171FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$146Average$339FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$161Average$347FlexibilityNo cancel feeOn-time63%

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