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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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDU
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(Mytrip)

One-way from

$67
(Mytrip)

Popular in

March

Cheapest in

July

Average price

$264

Good round-trip deal

$229 or less

Good one-way deal

$144 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 ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 4, 2025.

This Mytrip deal was found by Cheapflights users on 4/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/194:17 pmSTL - RDU
1 stop14h 39mSpirit Airlines
Sun 6/226:41 pmRDU - STL
1 stop21h 41mSpirit Airlines
Deal found 4/3$181
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:55 pmSTL - RDU
1 stop19h 04mFrontier
Mon 5/128:47 pmRDU - STL
1 stop28h 19mFrontier
Deal found 4/3$200
This Mytrip deal was found by Cheapflights users on 4/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/47:33 pmORD - RDU
1 stop14h 07mSpirit Airlines
Fri 5/93:55 pmRDU - ORD
2 stops29h 08mSpirit Airlines
Deal found 4/3$212
This Mytrip deal was found by Cheapflights users on 4/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:05 pmORD - RDU
1 stop13h 43mMultiple Airlines
Fri 5/93:55 pmRDU - ORD
1 stop16h 32mMultiple Airlines
Deal found 4/2$213
This eDestinos deal was found by Cheapflights users on 4/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:36 pmORD - RDU
1 stop23h 45mFrontier
Tue 4/297:04 pmRDU - ORD
1 stop14h 02mFrontier
Deal found 4/3$216
This Delta deal was found by Cheapflights users on 4/2. 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.
Sun 5/256:00 amMDW - RDU
1 stop4h 18mDelta
Tue 5/279:55 amRDU - MDW
1 stop3h 33mDelta
Deal found 4/2$217
This Delta deal was found by Cheapflights users on 4/4. 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 5/225:15 pmORD - RDU
1 stop4h 46mDelta
Sat 5/246:18 pmRDU - ORD
1 stop3h 42mDelta
Deal found 4/4$217
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/91:19 pmMDW - RDU
1 stop23h 40mFrontier
Sun 5/116:25 amRDU - MDW
1 stop8h 09mFrontier
Deal found 4/3$219
This Southwest deal was found by Cheapflights users on 4/3. 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.
Sat 5/2410:00 amMDW - RDU
Nonstop1h 55mSouthwest
Sun 5/256:55 pmRDU - MDW
Nonstop2h 00mSouthwest
Deal found 4/3$223
This American Airlines deal was found by Cheapflights users on 4/4. 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.
Tue 7/15:00 amPIA - RDU
1 stop4h 23mAmerican Airlines
Tue 7/86:23 pmRDU - PIA
1 stop6h 49mAmerican Airlines
Deal found 4/4$224
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:00 amMLI - RDU
1 stop4h 28mAmerican Airlines
Sat 6/75:56 pmRDU - MLI
1 stop6h 13mAmerican Airlines
Deal found 4/3$224
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:40 amORD - RDU
Nonstop1h 58mAmerican Airlines
Fri 5/306:00 amRDU - ORD
Nonstop2h 21mAmerican Airlines
Deal found 4/3$229

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 April 4, 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

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 6/19

4:17 pm-7:56 am

1 stop14h 39m

Raleigh-Durham

Sun 6/22

6:41 pm-3:22 pm

1 stop21h 41m

$181

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Fri 5/9

5:55 pm-1:59 pm

1 stop19h 04m

Raleigh-Durham

Mon 5/12

8:47 pm-12:06 am

1 stop28h 19m

$200

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Sun 5/4

7:33 pm-10:40 am

1 stop14h 07m

Raleigh-Durham

Fri 5/9

3:55 pm-8:03 pm

2 stops29h 08m

$212

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 5/2

8:05 pm-10:48 am

1 stop13h 43m

Raleigh-Durham

Fri 5/9

3:55 pm-7:27 am

1 stop16h 32m

$213

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 4/25

5:36 pm-6:21 pm

1 stop23h 45m

Raleigh-Durham

Tue 4/29

7:04 pm-8:06 am

1 stop14h 02m

$216

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Sun 5/25

6:00 am-12:33 pm

1 stop5h 33m

Raleigh-Durham

Sat 5/31

6:35 am-9:40 am

1 stop4h 05m

$217

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Thu 5/22

5:15 pm-11:01 pm

1 stop4h 46m

Raleigh-Durham

Sat 5/24

6:18 pm-9:00 pm

1 stop3h 42m

$217

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Fri 5/9

1:19 pm-1:59 pm

1 stop23h 40m

Raleigh-Durham

Sun 5/11

6:25 am-1:34 pm

1 stop8h 09m

$219

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Sat 5/24

10:00 am-12:55 pm

Nonstop1h 55m

Raleigh-Durham

Sun 5/25

6:55 pm-7:55 pm

Nonstop2h 00m

$223

PeoriaRaleigh

PIA - RDU

PIARDU

Greater Peoria

Tue 7/1

5:00 am-10:23 am

1 stop4h 23m

Raleigh-Durham

Tue 7/8

6:23 pm-12:12 am

1 stop6h 49m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 51 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 $295). 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 April 4, 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 April 4, 2025.

The most flights from USIL to RDU are scheduled on a Wednesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Raleigh by month

Plan your trip to Raleigh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Raleigh ranges from 2.9 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. April is typically the driest time to visit Raleigh when rainfall is around 2.9 in.

Temperature in Raleigh by month

Plan your trip to Raleigh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Raleigh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 April 4, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to Raleigh to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,837 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,618 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 Spirit Airlines. According to our data, you can fly for as low as $67. Users have also found prices from $106 and $123 on Frontier and Sun Country Air, 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 Royal Jordanian (90%), United Airlines (86%) or Air New Zealand (86%) 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 $69. On average you can expect to pay $385. The most popular route, (Chicago O'Hare Intl - Raleigh-Durham), can usually be booked for $139.

  • 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 $295). 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
Chapel Hill
Apex
Wilson
Garner
Wake Forest
Henderson
Goldsboro
Danville
Oxford
Rocky Mount

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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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$124FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$135Average$391FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$149Average$333FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$169Average$366FlexibilityNo cancel feeOn-time63%
DeltaCheapest$309Average$446FlexibilityNo cancel feeOn-timeN/A

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