$33 Find Cheap Flights 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 the United States to Illinois departing on 10/14. 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

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 for flights to Illinois
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois
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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$67
Moline
Moline1 stop$203
Peoria
Peorianonstop$66
Bloomington
Bloomington1 stop$297
Champaign
Champaignnonstop$296
Springfield
Springfield1 stop$289
St. Louis
St. Louisnonstop$77
Marion
Marion1 stop$375
Paducah
Paducah2 stops$374
Chicago
Chicagononstop$67
Moline
Moline1 stop$203
Peoria
Peorianonstop$66
Bloomington
Bloomington1 stop$297
Champaign
Champaignnonstop$296
Springfield
Springfield1 stop$289
St. Louis
St. Louisnonstop$77
Marion
Marion1 stop$375
Paducah
Paducah2 stops$374

Book Cheap Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights 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 to Illinois

Thu, Sep 4 - Thu, Sep 11
Frontier Logo
9:27 pm - 11:58 pmDFW-ORD
2h 31mnonstop
Frontier Logo
5:35 pm - 8:22 pmORD-DFW
2h 47mnonstop
$67Frontier
Find Deal
Thu, Sep 4 - Thu, Sep 11
Frontier Logo
7:00 am - 9:23 amDFW-MDW
2h 23mnonstop
Frontier Logo
10:18 am - 12:56 pmMDW-DFW
2h 38mnonstop
$67Frontier
Find Deal
Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
6:30 pm - 8:00 pmLGA-ORD
2h 30mnonstop
Spirit Airlines Logo
5:51 am - 9:00 amORD-LGA
2h 09mnonstop
$86Spirit Airlines
Find Deal
Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
6:59 am - 3:31 pmLGA-ORD
9h 32m1 stop
Spirit Airlines Logo
5:51 am - 9:00 amORD-LGA
2h 09mnonstop
$87Spirit Airlines
Find Deal
Tue, Aug 5 - Sat, Aug 9
United Airlines Logo
7:30 pm - 9:09 pmLGA-ORD
2h 39mnonstop
United Airlines Logo
8:00 pm - 11:22 pmORD-LGA
2h 22mnonstop
$91United Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
United Airlines Logo
7:45 am - 9:41 amBOS-ORD
2h 56mnonstop
United Airlines Logo
9:15 pm - 12:45 amORD-BOS
2h 30mnonstop
$91United Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
American Airlines Logo
5:20 pm - 7:01 pmLGA-ORD
2h 41mnonstop
American Airlines Logo
6:06 pm - 9:24 pmORD-LGA
2h 18mnonstop
$92American Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
American Airlines Logo
5:28 am - 7:24 amBOS-ORD
2h 56mnonstop
American Airlines Logo
6:15 am - 9:43 amORD-BOS
2h 28mnonstop
$92American Airlines
Find Deal
Sat, Aug 30 - Wed, Sep 3
Southwest Logo
8:00 am - 4:25 pmBOS-ORD
9h 25m1 stop
Southwest Logo
3:10 pm - 10:30 pmORD-BOS
6h 20m1 stop
$99Southwest
Find Deal
Sat, Aug 23 - Mon, Aug 25
Southwest Logo
5:20 am - 11:50 amBOS-ORD
7h 30m1 stop
Southwest Logo
2:55 pm - 10:35 pmORD-BOS
6h 40m1 stop
$103Southwest
Find Deal
Useful Info

What is the cheapest flight to Illinois?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Illinois from the United States found in the last 72 hours was to Peoria, at $75 round-trip. The most popular route is Atlanta (ATL) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $94.

How much is a flight to Illinois?

The average and cheapest price for all round-trip flights to Illinois from each origin found by users searching on KAYAK in the last month.

A flight to Illinois costs $336 on average. The cheapest price found on KAYAK in the last 2 weeks was $44 for the route Orlando Sanford Intl Airport (SFB) to Belleville (BLV). The most popular routes on KAYAK are Dallas to Bloomington which costs $435 on average, and Minneapolis to Chicago, which costs $483 on average.

See prices from:

What is the cheapest month to fly from the United States to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United States 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 the United States to Illinois is January, when tickets cost $278 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $524 and $469 respectively.

How far in advance should I book a flight from the United States to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 the United States to Illinois, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Which is the cheapest airport to fly into in Illinois?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Bloomington-Normal Airport (BMI), with an average flight price of $79.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$33
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Dallas/Fort Worth Airport to Chicago O'Hare Airport

Flights to Illinois: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew to Illinois 
DouglasFlew with American AirlinesHSV-ORDJun 2025
Check your app for delay notices. This notice did come out early in the morning - I failed to check it. Checking it could have saved 4 hours at the airport
Verified travelerFlew with British AirwaysDSM-ORDJun 2025
Make sure your luggage receipts have the ID numbers on them
StaceyFlew with American AirlinesPHX-ORDFeb 2025
Don’t be that person who holds up the plane because of your carry on. Whether putting in over bin (able to lift it on your own) or refusing to not listen when space is full and need to check it.
StephenFlew with United AirlinesEWR-ORDJan 2025
Don't bring a carry on roller bag. It won't fit. They will gate check it. It will take forever.
RodFlew with United AirlinesSAN-ORDSep 2024
Yes! Don’t reserve a flight with less than 1 1/2 hour connection time or you have a good possibility of missing your connection.
GeraldFlew with Alaska AirlinesSFO-ORDOct 2024
Book a flight as early in the day as possible to avoid incoming flight delays.
AdamFlew with SouthwestDEN-ORDOct 2024
Arriving T5 at ORD on Southwest is often a LONG walk, with no moving walkways going out, to baggage claim / pickup.
DinaFlew with United AirlinesHSV-ORDNov 2024
Be prepared for delays and plan to check your luggage. Overhead bins are ⅓ the size of a typical bin.
KimFlew with American AirlinesSNA-ORDNov 2024
Bring extra foods and buy extra drinks bring your meds
LeoFlew with United AirlinesCLT-ORDJun 2024
Get precheck TSA if you’re flying in early morning. Get a seat on the right side of the plane if you want to see sunrise.
Verified travelerFlew with American AirlinesPHL-ORDJul 2024
Fly out the night before you have anything to do in Chicago so you don’t get delayed and miss out on plans
CameonFlew with FrontierSLC-ORDJul 2024
Fly Delta! Book directly through the airline, not a second booking party.
GailFlew with JetBlueBOS-ORDJul 2024
Prepare for a long wait after you actually touch down. Ohare Airport is HUGE and you can taxi for a long time.
MichelleFlew with United AirlinesMBS-ORDApr 2024
Bring water on board and charge your devices in advance.
Verified travelerFlew with SouthwestLAS-ORDMay 2024
Leave plenty of time to get your bag in Chicago if you check one. Took 45 minutes to get my bag this time.
Verified travelerFlew with Alaska AirlinesSDF-ORDApr 2024
If flight gets delayed. Be sure to ask the airlines you traveled with, to rebook the next available flight immediately.
KariFlew with British AirwaysLSE-ORDMay 2024
Ask for assistance. Chicago is huge airport 🛫 and can get lost easy.
CindyFlew with SouthwestTPA-MDWMar 2024
Don’t check a bag. Chicago takes forever to get your baggage.
yvgeniFlew with United AirlinesEWR-ORDJan 2024
Check the weather before flying , and don’t rely on getting on time to your destination

FAQs - booking Illinois flights

  • What’s the best airport to fly into Chicago?

    The O’Hare International Airport and the Midway International Airport are the two major airports serving Chicago. The first one is 17 mi from the city center and has more flights and amenities. But, if you prefer a less busy airport, consider searching for flights that land at Midway International instead. Being less crowded is not the only advantage of this airport—it’s also closer to downtown Chicago (10 mi). Both airports are served by the famous "L" train. To travel from O’Hare to the city center, take CTA Blue Line, and from Midway, take the CTA Orange Line.

  • Where do I fly into if I’m visiting Springfield?

    Abraham Lincoln Capital Airport (SPI) is the airport serving Springfield, less than 10 mi from the city center. Keep in mind that this airport is served by only three airlines. Those airlines are Allegiant Air, flying from Punta Gorda in Florida; American Eagle, flying from Dallas-Fort Worth; and United Express, flying from Chicago O’Hare.

  • I’m going to Six Flags Great America. Which airport do I fly into?

    If you’re looking for flights to Illinois to visit the Six Flags Great America amusement park, choose Chicago as your final destination. O’Hare International Airport is 32 mi from the park and Midway International is 60 mi from the park. In addition to being the most convenient because of its proximity to the park, O’Hare International is also the airport with the most flight options.

  • Which airport is best if I’m going to Carbondale, Illinois?

    The airport in Illinois with commercial flights that’s closest to Carbondale is Midway International (5h 4m drive from Carbondale). Passengers who prefer a shorter driving distance between the airport and the city can look for flights to airports in neighboring states, e.g., St. Louis Lambert International (STL) in Missouri (2h 10m).

  • How does KAYAK find such low prices on flights from the United States 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 the United States to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United States 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 the United States 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 the United States 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 the United States 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 the United States to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Friday where round-trip tickets can be as cheap as $384. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $606 on average.

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

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $288 on average. Morning departures are around 39% 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 $441.

Top tips for finding cheap flights to Illinois

  • Looking for cheap airfare to Illinois? 25% of our users found round-trip tickets to Illinois for the following prices or less: From Phoenix-Mesa Gateway $137, from Boston $370, from Atlanta $735
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.
  • When you’re looking for flights to Illinois and you’re not sure which destination to pick, Chicago is perhaps the first city that comes to mind. The city is served by three airports, which makes it the best-known gateway into the Prairie State. If you like to choose airports based on airlines, keep in mind that the Chicago O’Hare International Airport (ORD) is the hub airport for American Airlines and United Airlines.
  • Midway International Airport (MDW) is the second largest airport in Chicago, and it’s mainly used by Southwest Airlines as a layover airport for dozens of destinations in the United States.
  • If you’re traveling to more than one destination in Illinois, Central Illinois Regional Airport (BMI) is a good option for those staying close to major cities like Rockford (2h 10m), Chicago (2h 45m), and Springfield (1h 10m) but prefer a smaller airport. Frontier Airlines, Allegiant Air, American Eagle, and Delta Connection are the airlines operating regular flights to Illinois from Orlando, Dallas, Atlanta, and Denver.
  • For passengers traveling with children and looking to rent a car at an airport in Illinois, keep in mind that local state laws require children under 2 years old to sit in a rear-facing child seat. From ages 4 to 8, children can sit in a forward-facing seat. Children between 8 and 12 years old can use a booster seat.
  • For passengers traveling with pets, you'll find pet relief areas at both of Chicago's international airports and also at Central Illinois Regional Airport.

Reviews of the top 5 airlines flying to Illinois

 
See real verified KAYAK customer reviews for airlines flying to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Illinois. 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 the United States 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 4250 reviews
7.6Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

It was one and half hour late... Not sure if any other experience matters.

4.0 OkaySudhir, Jul 2025LGA - MCI
Read more Southwest reviews

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

The flight was delayed four and half hours for paperwork on a maintenance issue. Very frustrating.

It was okay delay was long but I made it

Flight was cancelled. No reason given. No apologies. Next available flight is two days later. Ruined our 4th of July plans.

The air fares are good, Charging me for every single thing 😩

Horrible considering I didn’t go and I bought travel insurance and I didn’t receive a refund.

While on the flight we had a delay and had to sit on the plane while maintenance fixed it. It’s ended up taking an hour and a half longer to leave than expected. I had an unruly passenger sitting behind me that vaped during the flight and was rude and loud for the majority of the flight.

Spirit is by far the worst airline to travel with, period. Seats are cardboard, flight attendants need anger management and if you ask for water, you’re basically a criminal. I don’t care how much it costs but I will travel with an airline who actually cares about their customers. Oh and one more thing, the next time your gate agent puts his foot on someone’s baggage's scale, I hope they get what’s coming next, a viral video of your scams. You suck Spirit, do better.

I mean, it’s Spirit. But it was frustrating to have our flight canceled, get bumped to a later flight, and then Spirit was unwilling to check our bag until 4 hours before our flight… tell us we could not sit in the waiting area’s chairs… and really negative experience getting checked in and dropping the bag.

Not having it be changed after we bought the flight tickets from a direct flight getting in at a reasonable time to a connecting flight red eye of 9 hours, so that we would lose our 35 dollars in nonrefundable insurance would've been great! Our country really does need low-cost carrier options, but this type of "service" ain't it. Fortunately, had a little better success with them flying to and from San Juan PR last month at least.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

The delay was ridiculous because nary a word escaped from the gate attendant regarding our flight status. It was a complete joke.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was delayed one hour. Notification to the crowd waiting near the gate was terrible…announcements were unclear and very hard to hear and therefore understand. Frontier does NOT send texts to notify, only email. The reader board over the gate itself was NEVER updated to indicate the gate had been changed. It’s like a bunch of children are running things.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

We’ve all seen the YouTube vids of out of control passengers. But this was an instance of a highly aggressive, bully flight attendant. Yelling in the face of a vet with PTSD who was texting their family. And no , we had not yet been instructed to put our phones in airplane mode. My suggestion is that you should pay whatever difference there is in order to avoid Frontier airlines. Additionally, after 3hrs trying to get customer service frontier offered a $25 voucher. I declined. This experience was so traumatic. To be verbally assaulted and abused by a flight attendant that has the power to say “boo” and I miss my flight ( which was to a family member’s funeral ). Frontier is unsafe and I cannot impress enough how much I discourage anyone ( esp those with any kind of disability like PTSD ) flying on Frontier.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

We were delayed three times ,and that destroyed my plans, and reservations

Very bad! No good service delayed my second connection flight

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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