ORD

$54 Find Cheap Flights from Florida Keys to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 3/24. 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
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Florida Keys to O'Hare Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Florida Keys to O'Hare Intl 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 Florida Keys to O'Hare Intl

Wed, Apr 8 - Sun, Apr 12
Spirit Airlines Logo
7:20 am - 9:50 am
MIA
-
ORD
3h 30mnonstop
Spirit Airlines Logo
4:51 pm - 8:57 pm
ORD
-
MIA
3h 06mnonstop
$80Spirit Airlines
Thu, Apr 9 - Sun, Apr 12
Frontier Logo
12:04 pm - 2:42 pm
MIA
-
ORD
3h 38mnonstop
Frontier Logo
7:25 am - 11:44 am
ORD
-
MIA
3h 19mnonstop
$81Frontier
Thu, May 14 - Mon, May 18
Frontier Logo
9:21 pm - 11:59 pm
MIA
-
ORD
3h 38mnonstop
Frontier Logo
7:15 pm - 11:34 pm
ORD
-
MIA
3h 19mnonstop
$84Frontier
Thu, Apr 16 - Sat, Apr 18
Frontier Logo
9:21 pm - 11:59 pm
MIA
-
ORD
3h 38mnonstop
Frontier Logo
3:52 pm - 8:11 pm
ORD
-
MIA
3h 19mnonstop
$85Frontier
Thu, Apr 23 - Sat, Apr 25
Frontier Logo
9:21 pm - 11:59 pm
MIA
-
ORD
3h 38mnonstop
Frontier Logo
3:52 pm - 8:11 pm
ORD
-
MIA
3h 19mnonstop
$86Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
7:00 am - 9:37 am
MIA
-
ORD
3h 37mnonstop
Frontier Logo
10:32 am - 2:50 pm
ORD
-
MIA
3h 18mnonstop
$87Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
7:00 am - 9:37 am
MIA
-
ORD
3h 37mnonstop
Frontier Logo
10:32 am - 2:50 pm
ORD
-
MIA
3h 18mnonstop
$88Frontier
Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
6:46 pm - 9:35 pm
EYW
-
ORD
3h 49mnonstop
American Airlines Logo
8:10 am - 12:38 pm
ORD
-
EYW
3h 28mnonstop
$289American Airlines
Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
11:56 am - 4:21 pm
EYW
-
ORD
5h 25m
1 stop
American Airlines Logo
8:10 am - 12:38 pm
ORD
-
EYW
3h 28mnonstop
$299American Airlines
Thu, Mar 26 - Mon, Mar 30
Multiple Airlines Logo
9:46 am - 4:56 pm
EYW
-
ORD
8h 10m
1 stop
Multiple Airlines Logo
4:05 pm - 12:21 pm
ORD
-
EYW
19h 16m
1 stop
$306Multiple Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$54
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Miami to Chicago O'Hare Airport

FAQs for booking Florida Keys to Chicago O'Hare Airport flights

  • How does KAYAK find such low prices on flights from Florida Keys to Chicago O'Hare Airport?

    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 Chicago O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 Chicago O'Hare Airport?

    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 Chicago O'Hare Airport 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 Chicago O'Hare Airport?

    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 Chicago O'Hare Airport from Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Florida Keys to O'Hare Intl

 
Need help choosing which airline to fly with from Florida Keys to O'Hare Intl? 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.
7.4
United AirlinesOverall score based on 9429 reviews
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

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.

10.0 ExcellentDr. Joseph, Feb 2026
DCA - ORD
Read more United Airlines reviews

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.

If there are delays, it takes less than a minute for a Spirit employee to make an announcement. It’s very simple.

For a change, friendly staff at check-in and in flight.

Delayed both in takeoff and landing, trash plane no amenities, I've said it before but I'll never fly Spirit again.

It’s was a cheap flight and they got us there safely. It’s just their whole business model that make the experience “meh.” They make you paranoid about whether your personal item is too big. They make you paranoid about being crammed into a middle seat at the back of the plane. They purposely cram people together leaving multiple rows completely empty and even after the door closes the FA’s announce that everyone has to sit in their assigned seat. We knew what we were buying and in that regard we got a cheap and safe flight but it felt like they do their best to take any enjoyment out of the experience. That’s all on management, not the crew.

The flight was delayed for unknown reasons while other airlines weren’t. It was very frustrating.

Everything was good. On time, boarding fast, flight attendants friendly.

Spirit has always and will always stink. Absolute worst airline around.

Not seat assigned because overbooking. We could go because some people decided to give their seats.

The flights were very uncomfortable the seats don't have much leg room at all and they are pretty hard as well.

spirit delayed my first flight 9 hours and then cancelled my flight back home. Very disappointed with their service.

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

Flight got delayed for 5 hours no good explanation was offered ;(

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

The experience was good. No frills but I got there safe and sound and on time.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Traveling to a place near O'Hare Intl?

Book flights to O'Hare Intl if you plan to visit one of these locations
Gurnee
South Haven
Merrillville
Oak Brook
Saint Joseph
Tinley Park
Elk Grove Village
Hammond
Des Plaines
Hoffman Estates
Willowbrook
Portage
South Holland
Delavan
Northbrook
Lansing
Pleasant Prairie
Lisle
Elmhurst
Valparaiso

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