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Find cheap flights from Florida Keys to Illinois from $30

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Florida Keys to Illinois departing on 9/24. 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
0 bags
Mon 6/24
Mon 7/1

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Low season

January

High season

May

Cheapest flight

$30
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Miami to Chicago O'Hare Airport

FAQs for booking flights from Florida Keys to Illinois

  • How does KAYAK find such low prices on flights from Florida Keys 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 Florida Keys to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Florida Keys 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 Florida Keys 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 to Illinois with an airline and back to Florida Keys with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Florida Keys 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 to Illinois from Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Florida Keys to Illinois

 
Need help choosing which airline to fly with from Florida Keys 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.
7.8
Copa AirlinesOverall score based on 2653 reviews
7.7Comfort
7.3Food
8.3Crew
7.2Entertainment
8.1Boarding
Airline reviews

Captain and Crew were excellent. The Boeing 737-800 was showing its age. In flight entertainment system was sluggish and my Business Class seat on the outbound flight had some mechanical issues. Only real problem was the location of the Gate in Panama PTY. It was a 40 minute hike from Security to the Gate. There should have been some sort of warning about the distance.

10.0 ExcellentAnonymous, Mar 2024PTY - BWI
Read more about Copa Airlines reviews

Captain and Crew were excellent. The Boeing 737-800 was showing its age. In flight entertainment system was sluggish and my Business Class seat on the outbound flight had some mechanical issues. Only real problem was the location of the Gate in Panama PTY. It was a 40 minute hike from Security to the Gate. There should have been some sort of warning about the distance.

landed in panama it was in terminal one. We had to take a bus to terminal two for customs. Then back to terminal one. It was very frustrating. Then, on the way back from panama it was the same situation. We had to go back and forth between terminals to check in and drop our bags and then to board. When we were leaving, we had to wait in line for the boarding area and go through another gate security process. They told the bottles of water and coffee were bought while in line in the airport after we passed the main security. Ridiculous (and expensive). A much better communication system is needed.

This was my first time flying Copa but I'll definitely be back! Great service, professional agents, and delicious food for a fair price. Thanks for a great trip!

Horrible experience from start to end. Copa costumer service is non existent. They treat you bad. Everybody tells you different information. We didn’t received our luggage in the 1 day stop we did even we they said if was not going to be a problem. They didn’t respect the seats that we had and spread our family leaving in between of two big people who didn’t leave any space for me and crush me from side to side. I’ll never recommend Copa to anybody.

No cumpli mencionado trayecto por reasignacion de Copa Pero extraviaron mis maletas por su culpa

I was fortunate enough to have an entire row to myself and that was the highlight. Unfortunately, the flight was really turbulent which had no impact on how effective the crew was. However, I am disabled and should have boarded the flight first, but that wasn't the case. They also decided to take my bag at the gate because I had one too many and upon my picking it up at JFK it along with my rollator had been damaged. I am a vegan so the didn't have a proper meal for me and I was unable to view the entertainment because I didn't receive a set of headphones and if I needed to supply my own I wasn't made aware of that either. The crew was great, but overall everything was pretty lackluster.

LOCKED MY BAG WITHOUT CONSENT. Had to have my zippers cut upon arrival in Costa Rica.

Pros: "The seats in economy were confortable. The best thing was Copa gave us seats in the second line and my family traveled together."
Cons: "Coffe service could better the experience"
Cons: "Sure. I had booked a two week vacation in Brazil. All hotels, car rental and guides booked. Copa changed my fligjt at the last minute and out of the 14 days vacatipn I had in Brazil, they would have me spend 6 days in Panama City!!! Lost of small fortune with hotels, car rentals amd had to buy another ticket with Latam. They are a scam!!"
Cons: "Due the COVID-19 El Salvador closed its boarders, leaving me unable to fly. I have sent two emails, called and spoke to a customer service representative who treated me unprofessionally and rude. After that I have been calling numerous times with a wait of over 25 minutes each time and I still have to answer from you as a company. I am extremely disappointed and want an answer soon."

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

The whole day was a nightmare. Flight extremely late. Boarding was a mess of a nightmare.

Never been on this flight as i had missed it due to delayed connecting flight

Missed our departing flight due to poor baggage drop staff. At the airport with 2 & 1/2 hours to spare and waited in bag check in until 15 minutes prior to gates closing before baggage staff asked us to move to the front of the line. We weren’t the only passengers that missed the flight. Poor organizational operations by Spirit staff. Otherwise , the return trip was fine.

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Frontier is a crappy airline nothing about it is honest

Crew members are very rude and not cooperate with passengers.

30 minute delay due to boarding and settling of a family.

I am HIGHLY unhappy with the amount of money I spent on the flight. Paid in advance only to find the flight at a discount price a week or so before the flight. I will not fly frontier again and have bad mouthed your business since to anyone I have spoken with about flying (which has been many a people). Crew was mediocre and instead of moving me to a spot where I could gain some leg room they sat their flight attendant there. Won’t be flying frontier in the future.

Well, I didn’t have food! So NA wasn’t an option. I’ll be back!

First time flying with Frontier . From buying tickets ,getting boarding pass and boarding plane was super easy. Definitely would fly again with Frontier .

Our flight was on time and unremarkable which I'm grateful for, as it is not the norm traveling these days. Frontier is a low-cost carrier and it really shows when compared to other "normal" carriers. They don't even give you water during the flight. The coach seats are decent, however it was not as clean as it should be. We had crumbs all over the floor by our seats.

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

Book cheap flights from Florida Keys to Illinois

Recent round-trip flight deals

6/5Wed
nonstopFrontier
3h 11mMIA-MDW
6/12Wed
nonstopFrontier
3h 07mMDW-MIA
$46
6/12Wed
nonstopSpirit Airlines
3h 26mMIA-ORD
6/18Tue
nonstopSpirit Airlines
3h 15mORD-MIA
$50
6/12Wed
nonstopFrontier
3h 11mMIA-MDW
6/16Sun
nonstopFrontier
3h 08mMDW-MIA
$50
6/5Wed
nonstopSpirit Airlines
3h 26mMIA-ORD
6/12Wed
1 stopSpirit Airlines
12h 59mORD-MIA
$53
9/4Wed
nonstopAmerican Airlines
3h 00mMIA-STL
9/10Tue
nonstopAmerican Airlines
2h 49mSTL-MIA
$189
7/23Tue
1 stopDelta
5h 41mMIA-MDW
7/30Tue
1 stopDelta
5h 48mMDW-MIA
$216
7/23Tue
1 stopDelta
5h 41mMIA-MDW
7/29Mon
1 stopDelta
6h 15mMDW-MIA
$226
9/4Wed
1 stopAmerican Airlines
6h 26mMIA-STL
9/10Tue
nonstopAmerican Airlines
2h 49mSTL-MIA
$247
9/4Wed
1 stopUnited Airlines
6h 08mMIA-STL
9/10Tue
2 stopsUnited Airlines
17h 30mSTL-MIA
$397
11/2Sat
2 stopsUnited Airlines
10h 10mMIA-STL
11/6Wed
1 stopUnited Airlines
8h 26mSTL-MIA
$403

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Recent one-way flight deals

9/24Tue
nonstopSpirit Airlines
3h 25mMIA-ORD
$30
7/24Wed
nonstopFrontier
3h 06mMIA-MDW
$30
9/19Thu
nonstopSpirit Airlines
3h 27mMIA-ORD
$31
6/26Wed
nonstopFrontier
3h 11mMIA-MDW
$32
7/1Mon
1 stopDelta
8h 08mMIA-STL
$104
10/8Tue
1 stopAmerican Airlines
7h 31mMIA-MLI
$108
6/4Tue
1 stopDelta
8h 35mMIA-MDW
$108
6/4Tue
nonstopUnited Airlines
3h 25mMIA-ORD
$135
8/17Sat
nonstopAmerican Airlines
3h 00mMIA-STL
$150
6/12Wed
nonstopUnited Airlines
3h 28mMIA-ORD
$160

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Last minute flights from Florida Keys to Illinois

Last minute flight, train and bus deals

5/30Thu
nonstopSpirit Airlines
3h 25mMIA-ORD
6/5Wed
nonstopSpirit Airlines
3h 18mORD-MIA
$89
5/30Thu
multi-stopSpirit Airlines
5h 28mMIA-ORD
6/5Wed
nonstopSpirit Airlines
3h 18mORD-MIA
$91
5/28Tue
multi-stopFrontier
13h 12mMIA-ORD
6/4Tue
multi-stopFrontier
27h 59mORD-MIA
$156
5/30Thu
multi-stopFrontier
8h 35mMIA-ORD
6/4Tue
multi-stopFrontier
6h 15mORD-MIA
$158
5/30Thu
multi-stopAmerican Airlines
6h 49mEYW-ORD
6/2Sun
multi-stopAmerican Airlines
6h 38mORD-EYW
$435
5/28Tue
multi-stopAmerican Airlines
5h 40mMIA-ORD
5/28Tue
multi-stopAmerican Airlines
4h 37mORD-MIA
$479
5/30Thu
multi-stopUnited Airlines
9h 08mEYW-ORD
6/2Sun
multi-stopUnited Airlines
27h 00mORD-EYW
$557
5/27Mon
multi-stopDelta
6h 52mMIA-MDW
6/2Sun
multi-stopDelta
6h 45mMDW-MIA
$582
5/30Thu
multi-stopUnited Airlines
9h 08mEYW-ORD
6/2Sun
multi-stopUnited Airlines
25h 55mORD-EYW
$622
5/28Tue
multi-stopDelta
4h 52mMIA-MDW
5/28Tue
multi-stopDelta
4h 32mMDW-MIA
$766

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Flights to Illinois

Return flight deals:

Illinois - Florida Keys

Cabin classes:

$340
$307
$245
$40