HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$84+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
5月 6 — 5月 131
火 5/6
火 5/13
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 5月 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$176
(Cheapflightsfares)

One-way from

$84
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$256
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. 21% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 5月 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
土 5/313:06 pmRDU - ORD
1 stop5h 42mFrontier
月 6/211:32 amORD - RDU
Nonstop2h 07mFrontier
Deal found 4/30$176
This CheapOair deal was found by Cheapflights users on 5/1. 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.
木 8/73:26 pmRDU - ORD
Nonstop2h 25mMultiple Airlines
日 8/108:00 amORD - RDU
1 stop10h 48mMultiple Airlines
Deal found 5/1$177
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
水 5/289:20 amRDU - ORD
Nonstop2h 24mUnited Airlines
土 5/316:28 pmORD - RDU
Nonstop2h 07mUnited Airlines
Deal found 4/30$179
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
木 6/58:50 amRDU - ORD
1 stop6h 16mSpirit Airlines
日 6/87:35 pmORD - RDU
1 stop12h 37mSpirit Airlines
Deal found 5/1$181
This American Airlines deal was found by Cheapflights users on 4/30. 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.
水 5/286:00 amRDU - ORD
Nonstop2h 21mAmerican Airlines
水 5/2810:56 amORD - RDU
Nonstop2h 05mAmerican Airlines
Deal found 4/30$184
This Southwest deal was found by Cheapflights users on 4/30. 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.
水 5/286:15 amRDU - MDW
Nonstop2h 05mSouthwest
水 5/286:30 pmMDW - RDU
Nonstop1h 50mSouthwest
Deal found 4/30$189
This Delta deal was found by Cheapflights users on 4/30. 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.
土 6/1411:08 amRDU - ORD
1 stop4h 39mDelta
火 6/247:05 amORD - RDU
1 stop3h 59mDelta
Deal found 4/30$197
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
土 6/145:20 amRDU - MDW
1 stop5h 21mDelta
火 6/241:09 pmMDW - RDU
1 stop3h 29mDelta
Deal found 4/29$197
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
土 5/245:42 pmRDU - MDW
1 stop5h 20mFrontier
水 5/286:40 amMDW - RDU
1 stop11h 19mFrontier
Deal found 4/30$198
This Sun Country Air deal was found by Cheapflights users on 4/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
日 5/185:25 pmRDU - ORD
1 stop26h 44mSun Country Air
金 5/236:12 pmORD - RDU
1 stop15h 36mSun Country Air
Deal found 4/30$235
This American Airlines deal was found by Cheapflights users on 4/30. 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.
土 6/77:08 pmRDU - PIA
1 stop5h 11mAmerican Airlines
火 6/104:43 pmPIA - RDU
1 stop7h 09mAmerican Airlines
Deal found 4/30$249
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
金 6/1311:08 amRDU - MLI
1 stop6h 39mDelta
水 6/185:55 amMLI - RDU
1 stop6h 13mDelta
Deal found 4/29$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 5月 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

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

土 5/31

3:06 pm-7:48 pm

1 stop5h 42m

Chicago O'Hare Intl

月 6/2

11:32 am-2:39 pm

Nonstop2h 07m

$176

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

木 8/7

3:26 pm-4:51 pm

Nonstop2h 25m

Chicago O'Hare Intl

日 8/10

8:00 am-7:48 pm

1 stop10h 48m

$177

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

水 5/28

9:20 am-10:44 am

Nonstop2h 24m

Chicago O'Hare Intl

土 5/31

6:28 pm-9:35 pm

Nonstop2h 07m

$179

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

木 6/5

8:50 am-2:06 pm

1 stop6h 16m

Chicago O'Hare Intl

日 6/8

7:35 pm-9:12 am

1 stop12h 37m

$181

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

水 5/28

6:00 am-7:21 am

Nonstop2h 21m

Chicago O'Hare Intl

水 5/28

10:56 am-2:01 pm

Nonstop2h 05m

$184

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

水 5/28

6:15 am-7:20 am

Nonstop2h 05m

Chicago Midway

水 5/28

6:30 pm-9:20 pm

Nonstop1h 50m

$189

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

土 6/14

11:08 am-2:47 pm

1 stop4h 39m

Chicago O'Hare Intl

火 6/24

7:05 am-12:04 pm

1 stop3h 59m

$197

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

土 6/14

5:20 am-9:41 am

1 stop5h 21m

Chicago Midway

火 6/24

1:09 pm-5:38 pm

1 stop3h 29m

$197

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

土 5/24

5:42 pm-10:02 pm

1 stop5h 20m

Chicago Midway

水 5/28

6:40 am-6:59 pm

1 stop11h 19m

$198

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

日 5/18

5:25 pm-7:09 pm

1 stop26h 44m

Chicago O'Hare Intl

金 5/23

6:12 pm-10:48 am

1 stop15h 36m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 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 $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 5月 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 5月 1, 2025.

The most flights from DU8 to USIL are scheduled on a Thursday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 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 5月 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
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 $84. Users have also found prices from $85 and $85 on United Airlines and Southwest, 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 SkyWest Airlines (100%), Republic Airways (88%) or ANA (85%) 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 $80. While the most popular route (Raleigh-Durham - Chicago O'Hare Intl) can be booked for $127 on average our data indicates $928 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.

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.
Raleigh to Seattle flights
Charlotte to John F Kennedy Intl flights
Raleigh to O'Hare Intl flights
Raleigh to John F Kennedy Intl flights
Raleigh to LaGuardia flights
Charlotte to Newark flights
Charlotte to Denver flights
Charlotte to LaGuardia flights
Raleigh to Newark flights
Charlotte to Boston flights
Raleigh to Miami flights
Charlotte to Seattle flights
Charlotte to O'Hare Intl flights
Raleigh to Boston flights
Raleigh to Los Angeles flights
Raleigh to Las Vegas flights
Raleigh to Denver flights
Charlotte to Las Vegas flights
Raleigh to Orlando flights
Charlotte to Hobby flights
Charlotte to Orlando flights
Raleigh to San Francisco flights
Charlotte to Miami flights
Raleigh to Hobby flights
Charlotte to George Bush Intcntl flights
Raleigh to Dallas/Fort Worth flights
Raleigh to Fort Lauderdale flights
Charlotte to Fort Lauderdale flights
Charlotte to Dallas/Fort Worth flights
Raleigh to Nashville flights
Raleigh to George Bush Intcntl flights
Charlotte to Detroit flights
Raleigh to Tampa flights
Charlotte to Love Field flights
Charlotte to San Francisco flights
Raleigh to Austin flights
Greensboro to O'Hare Intl flights
Norfolk to Atlanta flights
Raleigh to Salt Lake City flights
Norfolk to O'Hare Intl flights
Raleigh to Atlanta flights
Raleigh to Sky Harbor Intl flights
Greensboro to Denver flights
Charlotte to Dulles Intl flights
Greensboro to Newark flights
Charlotte to Reagan-National flights
Raleigh to Detroit flights
Norfolk to Hobby flights
Charlotte to Buffalo flights
Raleigh to Midway 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 5月 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$143FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$263FlexibilityNo cancel feeOn-time65%
DeltaCheapest$102Average$373FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$140Average$344FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$146Average$394FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$162Average$331FlexibilityNo 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.