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$54+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 July 30, 2025.

Round-trip from

$153
(Orbitz)

One-way from

$54
(Booking.com)

Popular in

March

Cheapest in

August

Average price

$217
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 ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 30, 2025.

This Orbitz deal was found by Cheapflights users on 7/29. 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 9/259:23 amRDU - ORD
1 stop9h 16mMultiple Airlines
Mon 9/2911:36 amORD - RDU
Nonstop2h 14mMultiple Airlines
Deal found 7/29$153
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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.
Mon 8/253:32 pmRDU - ORD
Nonstop2h 25mFrontier
Mon 9/111:34 amORD - RDU
Nonstop2h 13mFrontier
Deal found 7/28$155
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/48:51 amRDU - ORD
Nonstop2h 17mAmerican Airlines
Sat 10/411:55 amORD - RDU
Nonstop2h 11mAmerican Airlines
Deal found 7/29$168
This Southwest deal was found by Cheapflights users on 7/30. 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 10/114:55 pmRDU - MDW
Nonstop1h 55mSouthwest
Sat 10/189:55 amMDW - RDU
Nonstop1h 50mSouthwest
Deal found 7/30$173
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 9/610:00 amRDU - ORD
Nonstop2h 23mUnited Airlines
Sun 9/77:10 amORD - RDU
Nonstop2h 11mUnited Airlines
Deal found 7/29$175
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
Fri 8/298:58 amRDU - MDW
1 stop5h 12mFrontier
Sun 8/316:45 amMDW - RDU
1 stop6h 13mFrontier
Deal found 7/29$176
This FlightHub deal was found by Cheapflights users on 7/30. 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 9/269:23 amRDU - ORD
1 stop9h 16mSpirit Airlines
Sun 9/2810:18 amORD - RDU
1 stop9h 36mSpirit Airlines
Deal found 7/30$182
This Delta deal was found by Cheapflights users on 7/30. 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 10/212:48 pmRDU - ORD
1 stop6h 16mDelta
Wed 10/85:20 amORD - RDU
1 stop6h 36mDelta
Deal found 7/30$197
This Delta deal was found by Cheapflights users on 7/28. 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 9/135:45 amRDU - MDW
1 stop3h 55mDelta
Thu 9/186:00 amMDW - RDU
1 stop5h 47mDelta
Deal found 7/28$197
This Flightnetwork deal was found by Cheapflights users on 7/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:27 amRDU - STL
1 stop5h 05mMultiple Airlines
Mon 8/185:40 pmSTL - RDU
1 stop6h 04mMultiple Airlines
Deal found 7/28$201
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Sat 10/119:51 pmRDU - STL
1 stop12h 01mFrontier
Sat 10/182:22 pmSTL - RDU
1 stop18h 30mFrontier
Deal found 7/29$205
This Priceline deal was found by Cheapflights users on 7/28. 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 8/299:27 amRDU - STL
1 stop5h 05mSpirit Airlines
Sun 8/3110:37 amSTL - RDU
1 stop7h 14mSpirit Airlines
Deal found 7/28$207

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 July 30, 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

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Thu 9/25

9:23 am-5:39 pm

1 stop9h 16m

Chicago O'Hare Intl

Sun 9/28

11:36 am-2:50 pm

Nonstop2h 14m

$153

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Mon 8/25

3:32 pm-4:57 pm

Nonstop2h 25m

Chicago O'Hare Intl

Mon 9/1

11:34 am-2:47 pm

Nonstop2h 13m

$155

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Sat 10/4

8:51 am-10:08 am

Nonstop2h 17m

Chicago O'Hare Intl

Sat 10/4

11:55 am-3:06 pm

Nonstop2h 11m

$168

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

Sat 10/11

4:55 pm-5:50 pm

Nonstop1h 55m

Chicago Midway

Sat 10/18

9:55 am-12:45 pm

Nonstop1h 50m

$173

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Sat 9/6

10:00 am-11:23 am

Nonstop2h 23m

Chicago O'Hare Intl

Sun 9/7

7:10 am-10:21 am

Nonstop2h 11m

$175

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

Fri 8/29

8:58 am-1:10 pm

1 stop5h 12m

Chicago Midway

Sun 8/31

6:45 am-1:58 pm

1 stop6h 13m

$176

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 9/26

9:23 am-5:39 pm

1 stop9h 16m

Chicago O'Hare Intl

Sun 9/28

10:18 am-8:54 pm

1 stop9h 36m

$182

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Thu 10/2

12:48 pm-6:04 pm

1 stop6h 16m

Chicago O'Hare Intl

Wed 10/8

5:20 am-12:56 pm

1 stop6h 36m

$197

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

Sat 9/13

5:45 am-8:40 am

1 stop3h 55m

Chicago Midway

Thu 9/18

6:00 am-12:47 pm

1 stop5h 47m

$197

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Mon 8/18

9:27 am-1:32 pm

1 stop5h 05m

Lambert-St Louis

Mon 8/18

5:40 pm-12:44 am

1 stop6h 04m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 58 results
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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 $321). 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 July 30, 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 July 30, 2025.

The most flights from DU8 to USIL are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

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 July 30, 2025.
See what other customers who have flown with Southwest, Delta, and Breeze Airways from Durham to Illinois have to say. 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.
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Breeze Airways
8.0
Very good
191 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 $54. Users have also found prices from $85 and $87 on Frontier and United Airlines, 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 - Greater Peoria.

  • 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 SkyWest Airlines (100%), ANA (89%) or SWISS (88%) 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 $87. While the most popular route (Raleigh-Durham - Chicago O'Hare Intl) can be booked for $101 on average our data indicates $1,264 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 $321). 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.

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Alternative routes for Durham to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$176FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$279FlexibilityNo cancel feeOn-time65%
DeltaCheapest$98Average$311FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$151Average$345FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$153Average$391FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$169Average$312FlexibilityNo cancel feeOn-time63%

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