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$60+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$60
(Frontier)

Popular in

December

Cheapest in

July

Average price

$318
Provider with most accurate pricing for Raleigh-Durham-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Chicago (CHI) flights.
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From Durham to Illinois
Search Deals
One-way flight from Durham to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This CheapOair deal was found by Cheapflights users on 2/19. 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 4/1010:16 pmRDU - STL
1 stop26h 30mFrontier
Sun 4/134:57 pmSTL - RDU
1 stop27h 25mFrontier
Deal found 2/19$130
This American Airlines deal was found by Cheapflights users on 2/18. 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 5/105:30 pmRDU - STL
1 stop7h 11mAmerican Airlines
Tue 5/135:12 amSTL - RDU
1 stop4h 16mAmerican Airlines
Deal found 2/18$159
This CheapOair deal was found by Cheapflights users on 2/19. 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 3/207:44 pmRDU - STL
1 stop14h 32mMultiple Airlines
Sun 3/236:47 pmSTL - RDU
1 stop14h 16mMultiple Airlines
Deal found 2/19$169
This FlightHub deal was found by Cheapflights users on 2/19. 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 5/318:43 pmRDU - ORD
1 stop14h 12mSpirit Airlines
Wed 6/48:00 amORD - RDU
1 stop10h 48mSpirit Airlines
Deal found 2/19$179
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 5/178:31 pmRDU - MDW
1 stop27h 09mFrontier
Mon 5/191:19 pmMDW - RDU
1 stop5h 38mFrontier
Deal found 2/20$188
This eDestinos deal was found by Cheapflights users on 2/19. 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.
Sat 4/56:00 amRDU - ORD
1 stop8h 58mFrontier
Sat 4/128:20 amORD - RDU
1 stop24h 39mFrontier
Deal found 2/19$192
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/1812:50 pmRDU - MLI
1 stop4h 03mAmerican Airlines
Wed 3/2612:40 pmMLI - RDU
1 stop5h 02mAmerican Airlines
Deal found 2/19$199
This CheapOair deal was found by Cheapflights users on 2/20. 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 5/93:01 pmRDU - ORD
Nonstop2h 20mMultiple Airlines
Sun 5/118:00 amORD - RDU
1 stop10h 48mMultiple Airlines
Deal found 2/20$202
This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/269:55 amRDU - ORD
1 stop7h 30mJetBlue
Tue 4/11:24 pmORD - RDU
1 stop5h 58mJetBlue
Deal found 2/19$219
This FlightHub deal was found by Cheapflights users on 2/20. 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 5/168:43 pmRDU - STL
1 stop22h 49mSpirit Airlines
Sun 5/187:37 pmSTL - RDU
1 stop23h 11mSpirit Airlines
Deal found 2/20$235
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 4/66:00 amRDU - PIA
1 stop5h 56mAmerican Airlines
Sun 4/135:16 pmPIA - RDU
1 stop3h 58mAmerican Airlines
Deal found 2/20$248
This Southwest deal was found by Cheapflights users on 2/19. 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 3/197:15 pmRDU - STL
Nonstop2h 15mSouthwest
Wed 3/268:15 amSTL - RDU
Nonstop1h 50mSouthwest
Deal found 2/19$257

Find flights from Durham to Illinois within your budget

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 February 20, 2025.

Fly from

Durham

Fly to

Illinois

Route

Depart

Return

Price

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Thu 4/10

10:16 pm-11:46 pm

1 stop26h 30m

Lambert-St Louis

Sun 4/13

4:57 pm-9:22 pm

1 stop27h 25m

$130

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Sat 5/10

5:30 pm-11:41 pm

1 stop7h 11m

Lambert-St Louis

Tue 5/13

5:12 am-10:28 am

1 stop4h 16m

$159

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Thu 3/20

7:44 pm-9:16 am

1 stop14h 32m

Lambert-St Louis

Sun 3/23

6:47 pm-10:03 am

1 stop14h 16m

$169

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Sat 5/31

8:43 pm-9:55 am

1 stop14h 12m

Chicago O'Hare Intl

Wed 6/4

8:00 am-7:48 pm

1 stop10h 48m

$179

RaleighChicago

RDU - MDW

RDUMDW

Raleigh-Durham

Mon 3/3

5:20 pm-12:17 am

1 stop7h 57m

Chicago Midway

Thu 3/6

12:45 pm-9:16 pm

1 stop7h 31m

$179

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Sat 4/5

6:00 am-1:58 pm

1 stop8h 58m

Chicago O'Hare Intl

Sat 4/12

8:20 am-9:59 am

1 stop24h 39m

$192

RaleighMoline

RDU - MLI

RDUMLI

Raleigh-Durham

Tue 3/18

12:50 pm-3:53 pm

1 stop4h 03m

Moline Quad-City

Wed 3/26

12:40 pm-6:42 pm

1 stop5h 02m

$199

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Fri 5/9

3:01 pm-4:21 pm

Nonstop2h 20m

Chicago O'Hare Intl

Sun 5/11

8:00 am-7:48 pm

1 stop10h 48m

$202

RaleighChicago

RDU - ORD

RDUORD

Raleigh-Durham

Wed 3/26

9:55 am-4:25 pm

1 stop7h 30m

Chicago O'Hare Intl

Tue 4/1

1:24 pm-8:22 pm

1 stop5h 58m

$219

RaleighSt. Louis

RDU - STL

RDUSTL

Raleigh-Durham

Fri 5/16

8:43 pm-6:32 pm

1 stop22h 49m

Lambert-St Louis

Sun 5/18

7:37 pm-7:48 pm

1 stop23h 11m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 55 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.

Travel insights for flights from Durham to Illinois

Get recent, data-driven insights about flights from Durham to Illinois including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.

The most flights from DU8 to USIL are scheduled on a Thursday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 February 20, 2025.
Read through reviews of airlines operating flights from Durham to Illinois, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Frontier. According to our data, you can fly for as low as $60. Users have also found prices from $80 and $80 on Spirit Airlines and American 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 - 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%), Royal Jordanian (91%) or Republic Airways (87%) 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 $148. While the most popular route (Raleigh-Durham - Chicago O'Hare Intl) can be booked for $98 on average our data indicates $1,123 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$125FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$80Average$249FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$137Average$341FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$142Average$382FlexibilityNo cancel feeOn-time71%
DeltaCheapest$155Average$381FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$159Average$322FlexibilityNo cancel feeOn-time63%
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