$64 Find Cheap Flights from Raleigh to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Raleigh to Illinois departing on 3/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Illinois.
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Raleigh to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$161
Moline
Moline1 stop$309
Peoria
Peoria1 stop$291
Bloomington
Bloomington1 stop$297
Champaign
Champaign1 stop$348
Springfield
Springfield1 stop$298
St. Louis
St. Louis1 stop$148
Chicago
Chicago1 stop$161
Moline
Moline1 stop$309
Peoria
Peoria1 stop$291
Bloomington
Bloomington1 stop$297
Champaign
Champaign1 stop$348
Springfield
Springfield1 stop$298
St. Louis
St. Louis1 stop$148

Book Cheap Raleigh to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Raleigh to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Raleigh to Illinois

Sun, May 17 - Wed, May 20
Frontier Logo
12:54 pm - 8:55 am
RDU
-
STL
21h 01m
1 stop
Frontier Logo
5:27 pm - 12:33 am
STL
-
RDU
6h 06m
1 stop
$148Frontier
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
3:57 pm - 5:34 pm
RDU
-
STL
26h 37m
1 stop
Frontier Logo
8:23 pm - 8:23 am
STL
-
RDU
11h 00m
1 stop
$153Frontier
Mon, Apr 13 - Wed, Apr 15
Multiple Airlines Logo
5:11 pm - 6:30 pm
RDU
-
ORD
2h 19mnonstop
Multiple Airlines Logo
7:15 pm - 10:55 pm
ORD
-
RDU
26h 40m
2 stops
$162Multiple Airlines
Mon, Apr 13 - Tue, Apr 14
Multiple Airlines Logo
3:57 pm - 10:39 pm
RDU
-
ORD
7h 42m
1 stop
Multiple Airlines Logo
7:17 am - 6:44 pm
ORD
-
RDU
10h 27m
1 stop
$163Multiple Airlines
Tue, May 5 - Sat, May 9
American Airlines Logo
1:28 pm - 6:34 pm
RDU
-
PIA
6h 06m
1 stop
American Airlines Logo
6:54 pm - 11:58 pm
PIA
-
RDU
4h 04m
1 stop
$291American Airlines
Tue, May 5 - Sat, May 9
American Airlines Logo
3:50 pm - 11:13 pm
RDU
-
PIA
8h 23m
1 stop
American Airlines Logo
1:22 pm - 9:55 pm
PIA
-
RDU
7h 33m
2 stops
$296American Airlines
Wed, Apr 22 - Tue, Apr 28
United Airlines Logo
5:25 pm - 9:12 pm
RDU
-
MLI
4h 47m
1 stop
United Airlines Logo
6:30 am - 12:10 pm
MLI
-
RDU
4h 40m
1 stop
$309United Airlines
Wed, Apr 22 - Tue, Apr 28
United Airlines Logo
10:07 am - 2:09 pm
RDU
-
MLI
5h 02m
1 stop
United Airlines Logo
8:00 am - 6:10 pm
MLI
-
RDU
9h 10m
2 stops
$314United Airlines
Wed, Jun 24 - Mon, Jun 29
Delta Logo
5:20 am - 9:26 am
RDU
-
EVV
5h 06m
1 stop
Delta Logo
10:05 am - 5:04 pm
EVV
-
RDU
5h 59m
1 stop
$417Delta
Thu, Jul 2 - Mon, Jul 6
Delta Logo
5:20 am - 9:26 am
RDU
-
EVV
5h 06m
1 stop
Delta Logo
5:45 pm - 10:50 pm
EVV
-
RDU
4h 05m
1 stop
$427Delta
Booking Insights

KAYAK's insights & trends for Raleigh to Illinois flights

Get data-powered insights and trends into flights from Raleigh to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Raleigh to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Raleigh found in the last 72 hours was to Chicago, at $175 round-trip. The most popular route is from Raleigh (RDU) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $175.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Raleigh to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $296 on average. Morning departures are around 29% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $455.

Can I save money by flying with a layover from Raleigh to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $300, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Raleigh to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Raleigh to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Raleigh to Illinois is December, when tickets cost $217 (return) on average. On the other hand, the most expensive months are February and April, when the average cost of round-trip tickets is $350 and $313 respectively.

What’s the cheapest day of the week to fly from Raleigh to Illinois?

The average price of all round-trip flights from Raleigh to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Raleigh to Illinois. For your return ticket, we recommend flying on a Thursday and avoiding Mondays for the best deals.

How far in advance should I book a flight from Raleigh to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Raleigh to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Raleigh to Illinois, you should book around 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds with an average 9% drop in price.
Flight from Raleigh to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Raleigh to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Raleigh to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Raleigh to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Raleigh to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Raleigh to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Raleigh to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Raleigh to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Raleigh to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Raleigh to the following destinations at these prices or less: Chicago $154 one-way - $287 round-trip

Reviews of the top 5 airlines serving from Raleigh to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Raleigh to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Raleigh to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4318 reviews
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

Waited for oxygen tanks for 30 minutes after boarding was complete.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Everything you need to know for your flight from Raleigh to Illinois

Information on your arrival and departure airports