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Durham

$87+ Cheap flights from Illinois to Durham, NC

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDU
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Durham

Keep the following information in mind while searching for Illinois to Durham flight deals. Data was last updated July 31, 2025.

Round-trip from

$131
(FlightHub)

One-way from

$87
(Southwest)

Popular in

March

Cheapest in

August

Average price

$217
From Illinois to Durham
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One-way flight from Illinois to Durham
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 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 Illinois to Durham

Cheapest flights from Illinois to Durham
Explore the most affordable flight options available from Illinois to Durham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

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.
Fri 10/1011:32 amORD - RDU
Nonstop2h 06mFrontier
Sun 10/123:36 pmRDU - ORD
Nonstop2h 22mFrontier
Deal found 7/29$131
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:05 amORD - RDU
1 stop8h 30mMultiple Airlines
Sun 10/53:35 pmRDU - ORD
Nonstop2h 16mMultiple Airlines
Deal found 7/29$154
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:00 pmMDW - RDU
Nonstop1h 50mSouthwest
Sat 10/46:35 amRDU - MDW
Nonstop1h 55mSouthwest
Deal found 7/29$173
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:50 amORD - RDU
Nonstop2h 08mAmerican Airlines
Tue 10/141:28 pmRDU - ORD
Nonstop2h 25mAmerican Airlines
Deal found 7/30$173
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:20 amMDW - RDU
1 stop8h 39mFrontier
Sat 8/94:44 pmRDU - MDW
1 stop6h 49mFrontier
Deal found 7/29$179
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:05 amORD - RDU
1 stop8h 20mSpirit Airlines
Mon 11/311:45 amRDU - ORD
1 stop13h 05mSpirit Airlines
Deal found 7/30$181
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.
Thu 8/2810:37 amSTL - RDU
1 stop7h 14mSpirit Airlines
Sun 8/319:27 amRDU - STL
1 stop5h 05mSpirit Airlines
Deal found 7/29$186
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/198:00 amSTL - RDU
1 stop13h 41mMultiple Airlines
Fri 8/229:27 amRDU - STL
1 stop5h 05mMultiple Airlines
Deal found 7/30$193
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:00 amMDW - RDU
1 stop7h 01mDelta
Mon 9/16:20 amRDU - MDW
1 stop4h 16mDelta
Deal found 7/31$197
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/198:00 amSTL - RDU
1 stop13h 41mFrontier
Sat 8/237:30 amRDU - STL
1 stop7h 03mFrontier
Deal found 7/31$205
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:07 amPIA - RDU
1 stop5h 19mAmerican Airlines
Tue 9/27:31 pmRDU - PIA
1 stop4h 31mAmerican Airlines
Deal found 7/31$224
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/199:45 amSTL - RDU
1 stop5h 25mSouthwest
Tue 8/196:45 pmRDU - STL
Nonstop2h 05mSouthwest
Deal found 7/29$227

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Durham 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 31, 2025.
Use the filters below to find and compare flights from Illinois to Durham that are best for you.

Fly from

Illinois

Fly to

Durham

Route

Depart

Return

Price

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 10/10

11:32 am-2:38 pm

Nonstop2h 06m

Raleigh-Durham

Sun 10/12

3:36 pm-4:58 pm

Nonstop2h 22m

$131

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Thu 10/2

5:05 am-2:35 pm

1 stop8h 30m

Raleigh-Durham

Sun 10/5

3:35 pm-4:51 pm

Nonstop2h 16m

$154

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Wed 10/1

3:00 pm-5:50 pm

Nonstop1h 50m

Raleigh-Durham

Sat 10/4

6:35 am-7:30 am

Nonstop1h 55m

$173

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Wed 10/8

9:50 am-12:58 pm

Nonstop2h 08m

Raleigh-Durham

Tue 10/14

1:28 pm-2:53 pm

Nonstop2h 25m

$173

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Fri 9/5

5:05 am-2:35 pm

1 stop8h 30m

Raleigh-Durham

Sun 9/7

9:23 am-5:39 pm

1 stop9h 16m

$182

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Tue 9/9

2:32 pm-8:37 pm

1 stop5h 05m

Raleigh-Durham

Wed 9/10

6:45 am-3:58 pm

1 stop10h 13m

$185

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Thu 8/28

10:37 am-6:51 pm

1 stop7h 14m

Raleigh-Durham

Sun 8/31

9:27 am-1:32 pm

1 stop5h 05m

$186

St. LouisRaleigh

STL - RDU

STLRDU

Lambert-St Louis

Tue 8/19

8:00 am-10:41 pm

1 stop13h 41m

Raleigh-Durham

Fri 8/22

9:27 am-1:32 pm

1 stop5h 05m

$193

ChicagoRaleigh

MDW - RDU

MDWRDU

Chicago Midway

Sat 8/30

6:00 am-2:01 pm

1 stop7h 01m

Raleigh-Durham

Mon 9/1

6:20 am-9:36 am

1 stop4h 16m

$197

ChicagoRaleigh

ORD - RDU

ORDRDU

Chicago O'Hare Intl

Sat 8/30

7:15 am-11:54 am

1 stop3h 39m

Raleigh-Durham

Mon 9/1

5:45 am-10:20 am

1 stop5h 35m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 50 results
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Best time to book a flight from Illinois to Durham

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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Durham (average of $206). Flying from Illinois to Durham in March is currently the most expensive (average of $293). 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 DU8?

Find hourly flight availability from Illinois to Durham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

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

Weekly flight availability from Illinois to Durham

Explore weekly flight availability from Illinois to Durham. 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 31, 2025.

The most flights from USIL to DU8 are scheduled on a Thursday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing Durham

Get insights into the airlines that provide service to Durham. 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 Durham. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Illinois to Durham, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

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 Illinois to Durham. 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 Illinois to Durham one-way?

    $87 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Spirit Airlines, with prices starting from $87 and $88, respectively.

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

    Most travelers choose Chicago O'Hare Intl - Raleigh-Durham, Chicago Midway - Raleigh-Durham or Lambert-St Louis - Raleigh-Durham when deciding on the best route from Illinois to Durham.

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

    Before booking your flight to Durham from Illinois, check out the most reliable airlines to get you to your destination on time: United Airlines (82%), Republic Airways (81%), Envoy Air( 80%).

  • What are the cheapest flights from Illinois to Durham?

    On average you can expect to pay $176 for a flight from Illinois to Durham. The cheapest flight overall is $82 while the most popular route, (Chicago O'Hare Intl - Raleigh-Durham) is currently priced at $145.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Durham (average of $206). Flying from Illinois to Durham in March is currently the most expensive (average of $293). 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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Top 5 airlines flying from Illinois to Durham

Discover the top 5 airlines that operate flights from Illinois to Durham. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$166FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$157Average$342FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$161Average$347FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$308FlexibilityNo cancel feeOn-timeN/A

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