HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$81+ Cheap flights from Durham, NC to Illinois

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Durham to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Durham to Illinois

Keep the following information in mind while searching for Durham to Illinois flight deals. Data was last updated April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$199
(American Airlines)

One-way from

$81
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$268
Provider with most accurate pricing for Raleigh-Durham-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Chicago (CHI) flights.
Search Deals
From Durham to Illinois
Search Deals
One-way flight from Durham to Illinois
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Durham to Illinois

Cheapest flights from Durham to Illinois
Explore the most affordable flight options available from Durham to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 5/247:20 amRDU - MLI
1 stop4h 22mAmerican Airlines
Sun 5/255:00 amMLI - RDU
1 stop4h 28mAmerican Airlines
Deal found 4/1$199
This CheapOair deal was found by Cheapflights users on 3/31. 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.
Tue 4/2910:01 amRDU - STL
1 stop15h 03mFrontier
Tue 5/65:45 pmSTL - RDU
1 stop27h 34mFrontier
Deal found 3/31$200
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 4/194:09 pmRDU - PIA
1 stop6h 54mAmerican Airlines
Fri 5/25:16 pmPIA - RDU
1 stop3h 58mAmerican Airlines
Deal found 4/1$224
This Gotogate deal was found by Cheapflights users on 3/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2411:29 amRDU - STL
1 stop6h 46mMultiple Airlines
Mon 4/285:41 pmSTL - RDU
1 stop14h 30mMultiple Airlines
Deal found 3/31$225
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 5/279:20 amRDU - ORD
Nonstop2h 24mUnited Airlines
Sun 6/111:03 amORD - RDU
Nonstop2h 07mUnited Airlines
Deal found 3/31$241
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1610:17 amRDU - ORD
1 stop9h 23mMultiple Airlines
Mon 5/194:15 pmORD - RDU
1 stop29h 04mMultiple Airlines
Deal found 4/1$242
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:45 amRDU - ORD
1 stop6h 56mSpirit Airlines
Sun 5/47:33 pmORD - RDU
1 stop14h 07mSpirit Airlines
Deal found 4/1$244
This American Airlines deal was found by Cheapflights users on 4/1. 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 6/612:56 pmRDU - ORD
1 stop5h 39mAmerican Airlines
Wed 6/116:55 pmORD - RDU
Nonstop2h 04mAmerican Airlines
Deal found 4/1$246
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/51:35 pmRDU - MDW
Nonstop1h 55mSouthwest
Tue 8/1210:00 amMDW - RDU
Nonstop1h 55mSouthwest
Deal found 4/1$247
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2812:26 pmRDU - MDW
1 stop4h 13mDelta
Tue 7/16:00 amMDW - RDU
1 stop4h 21mDelta
Deal found 4/1$248
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/193:38 pmRDU - ORD
Nonstop2h 37mFrontier
Sun 6/2211:32 amORD - RDU
Nonstop2h 07mFrontier
Deal found 4/1$249
This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/225:15 amRDU - MDW
1 stop4h 45mFrontier
Tue 5/276:35 amMDW - RDU
1 stop8h 34mFrontier
Deal found 4/1$249

Cheapflights Fare Finder

Customize your flight search to find flights from Durham to Illinois 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 1, 2025.
Use the filters below to find and compare flights from Durham to Illinois that are best for you.

Fly from

Durham

Fly to

Illinois

Route

Depart

Return

Price

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

Sat 5/24

7:20 am-10:42 am

1 stop4h 22m

Moline Quad-City

Sun 5/25

5:00 am-10:28 am

1 stop4h 28m

$199

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Tue 4/29

10:01 am-12:04 am

1 stop15h 03m

Lambert-St Louis

Tue 5/6

5:45 pm-10:19 pm

1 stop27h 34m

$200

RaleighPeoria

RDU - PIA

RDUPIA

Raleigh-Durham

Sat 4/19

4:09 pm-10:03 pm

1 stop6h 54m

Greater Peoria

Fri 5/2

5:16 pm-10:14 pm

1 stop3h 58m

$224

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Thu 4/24

11:29 am-5:15 pm

1 stop6h 46m

Lambert-St Louis

Mon 4/28

5:41 pm-9:11 am

1 stop14h 30m

$225

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Tue 5/27

9:20 am-10:44 am

Nonstop2h 24m

Chicago O'Hare Intl

Sun 6/1

11:03 am-2:10 pm

Nonstop2h 07m

$241

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 5/16

10:17 am-6:40 pm

1 stop9h 23m

Chicago O'Hare Intl

Mon 5/19

4:15 pm-10:19 pm

1 stop29h 04m

$242

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 5/2

11:45 am-5:41 pm

1 stop6h 56m

Chicago O'Hare Intl

Sun 5/4

7:33 pm-10:40 am

1 stop14h 07m

$244

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 6/6

12:56 pm-5:35 pm

1 stop5h 39m

Chicago O'Hare Intl

Wed 6/11

6:55 pm-9:59 pm

Nonstop2h 04m

$246

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

Sat 6/28

12:26 pm-3:39 pm

1 stop4h 13m

Chicago Midway

Tue 7/1

6:00 am-11:21 am

1 stop4h 21m

$248

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Thu 6/19

3:38 pm-5:15 pm

Nonstop2h 37m

Chicago O'Hare Intl

Sun 6/22

11:32 am-2:39 pm

Nonstop2h 07m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 54 results
1
2
3
...
6

Best time to book a flight from Durham to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Durham 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 Durham to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Durham to Illinois (average of $245). Flying from Durham to Illinois in March is currently the most expensive (average of $323). 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 DU8 to IL?

Find hourly flight availability from Durham to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2025.

When flying from Durham to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Durham to Illinois

Explore weekly flight availability from Durham to Illinois. 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 1, 2025.

The most flights from DU8 to USIL are scheduled on a Monday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated April 1, 2025.
Read through reviews of airlines operating flights from Durham to Illinois, such as Southwest, Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,275 reviews
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,899 reviews
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,615 reviews
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Sun Country Air
6.9
Okay
349 reviews
Southwest
8.0
Very good
4,275 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $81. Users have also found prices from $95 and $133 on Frontier and Sun Country Air, respectively.

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

    The most popular flight routes from Durham to Illinois are Raleigh-Durham - Chicago O'Hare Intl, Raleigh-Durham - Chicago Midway and Raleigh-Durham - Lambert-St Louis.

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

    No one likes to see their flight delayed. When booking a flight from Durham to Illinois consider choosing Japan Airlines (93%), Cathay Pacific (90%) or Royal Jordanian (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Durham to Illinois?

    Looking at all options, your cheapest flight can be booked for $134. While the most popular route (Raleigh-Durham - Chicago O'Hare Intl) can be booked for $139 on average our data indicates $2,054 when flying from Durham to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Durham to Illinois 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 Durham to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Durham to Illinois (average of $245). Flying from Durham to Illinois in March is currently the most expensive (average of $323). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Durham to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to John F Kennedy Intl flights
Raleigh to Seattle flights
Raleigh to John F Kennedy Intl flights
Charlotte to LaGuardia flights
Raleigh to LaGuardia flights
Charlotte to Hobby flights
Charlotte to Newark flights
Charlotte to Denver flights
Charlotte to Boston flights
Raleigh to Newark flights
Charlotte to Seattle flights
Raleigh to Miami flights
Charlotte to O'Hare Intl flights
Raleigh to O'Hare Intl flights
Raleigh to Denver flights
Raleigh to Hobby flights
Raleigh to Las Vegas flights
Charlotte to George Bush Intcntl flights
Raleigh to Orlando flights
Charlotte to Fort Lauderdale flights
Raleigh to Fort Lauderdale flights
Charlotte to Dulles Intl flights
Raleigh to Nashville flights
Charlotte to Orlando flights
Charlotte to Las Vegas flights
Raleigh to Los Angeles flights
Raleigh to George Bush Intcntl flights
Raleigh to Austin flights
Raleigh to Boston flights
Raleigh to San Francisco flights
Raleigh to Dallas/Fort Worth flights
Charlotte to Dallas/Fort Worth flights
Charlotte to San Antonio flights
Raleigh to San Antonio flights
Charlotte to Miami flights
Charlotte to Sky Harbor Intl flights
Raleigh to Atlanta flights
Raleigh to Islip flights
Charlotte to Austin flights
Charlotte to Salt Lake City flights
Norfolk to Hobby flights
Raleigh to Midway flights
Raleigh to Dulles Intl flights
Charlotte to San Francisco flights
Charlotte to Reagan-National flights
Greensboro to O'Hare Intl flights
Raleigh to Sky Harbor Intl flights
Raleigh to Tampa flights
Charlotte to Los Angeles flights
Norfolk to Las Vegas flights

Top 6 airlines flying from Durham to Illinois

Discover the top 6 airlines that operate flights from Durham to Illinois. 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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$130FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$249FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$138Average$355FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$145Average$384FlexibilityNo cancel feeOn-time71%
DeltaCheapest$155Average$402FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$166Average$334FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.