ORD - EYW

$112 Find Cheap Flights from Chicago O'Hare Airport to Key West

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Key West departing on 10/19. 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 Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Key West, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Key West, as well as popular online travel agencies
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Flight Deals

Cheap Flights from O'Hare Intl to Key West (ORD-EYW)

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

Sat, Oct 11 - Tue, Oct 14
Multiple Airlines Logo
7:43 pm - 2:40 pmORD-EYW
17h 57m1 stop
Multiple Airlines Logo
11:45 am - 10:08 amEYW-ORD
23h 23m1 stop
$217Multiple Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Multiple Airlines Logo
7:43 pm - 8:15 amORD-EYW
11h 32m1 stop
Multiple Airlines Logo
10:47 am - 3:45 pmEYW-ORD
5h 58m1 stop
$224Multiple Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Multiple Airlines Logo
7:43 pm - 2:40 pmORD-EYW
17h 57m1 stop
Multiple Airlines Logo
11:45 am - 12:53 pmEYW-ORD
26h 08m1 stop
$227Multiple Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Spirit Airlines Logo
5:05 am - 1:30 pmORD-EYW
7h 25m1 stop
Spirit Airlines Logo
2:25 pm - 9:00 pmEYW-ORD
7h 35m1 stop
$245Spirit Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23
United Airlines Logo
10:50 am - 3:09 pmORD-EYW
3h 19mnonstop
United Airlines Logo
4:10 pm - 6:43 pmEYW-ORD
3h 33mnonstop
$249United Airlines
Find Deal
Thu, Jan 29 - Mon, Feb 2
Spirit Airlines Logo
5:05 am - 1:30 pmORD-EYW
7h 25m1 stop
Spirit Airlines Logo
2:25 pm - 9:00 pmEYW-ORD
7h 35m1 stop
$255Spirit Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23
United Airlines Logo
6:00 am - 2:06 pmORD-EYW
7h 06m1 stop
United Airlines Logo
4:10 pm - 6:43 pmEYW-ORD
3h 33mnonstop
$259United Airlines
Find Deal
Tue, Feb 24 - Thu, Mar 5
Delta Logo
11:19 am - 5:13 pmORD-EYW
4h 54m1 stop
Delta Logo
1:30 pm - 7:25 pmEYW-ORD
6h 55m1 stop
$269Delta
Find Deal
Wed, Feb 18 - Thu, Feb 26
Delta Logo
5:50 am - 1:12 pmORD-EYW
6h 22m1 stop
Delta Logo
1:30 pm - 7:25 pmEYW-ORD
6h 55m1 stop
$289Delta
Find Deal
Tue, Feb 24 - Wed, Mar 4
American Airlines Logo
10:59 am - 3:29 pmORD-EYW
3h 30mnonstop
American Airlines Logo
4:00 pm - 6:36 pmEYW-ORD
3h 36mnonstop
$303American Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
United's Economy Plus offers extra legroom benefits.
Expect long lines at ORD security during peak times.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Spirit Airlines
Cheapest • from $245 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 12% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$217
Overall average: $387
Multiple Airlines
Sat 10/11Tue 10/14
ORD - EYW • 1 stop
Cheapest non-stop
$249
Typical prices: $315-587
United Airlines
Tue 12/16Tue 12/23
ORD - EYW • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Key West!
Expert advice

Expert advice for your flight from O'Hare Intl to Key West

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

Consider Basic Economy for budget travel; restrictions include late boarding and no seat assignment.


Main Cabin Extra offers early boarding and complimentary drinks, ideal for longer flights.

United Airlines

Economy Plus provides up to 6 inches more legroom than standard economy seats.


Purchase Priority Boarding to avoid gate-checking your carry-on due to overhead bin space.

Airports
ORD

Security lines at ORD can be long during peak times. Arrive early to ensure a smooth departure experience.

Read more about ORDby Stefanie Waldek
EYW

At EYW, taxis and rideshares are readily available, making it easy to reach Key West's attractions quickly.

Read more about EYWby Paul Rubio
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Paul Rubio

Paul Rubio

Expert on EYW

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Key West flights

Get data-powered insights and trends into flights from O'Hare Intl to Key West to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Key West?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Key West clicked on KAYAK for each day over the last 12 months.

When flying from Chicago O'Hare Airport to Key West, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Chicago O'Hare Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Key West, 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 Chicago O'Hare Intl Airport to Key West is June, where tickets cost $387 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $543 and $501 respectively.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Key West?

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $458 on average.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Key West?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Key West, 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 Chicago O'Hare Intl Airport to Key West, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$112
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Chicago O'Hare Airport to Key West

When to book flights from O'Hare Intl to Key West

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Key West flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Key West?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Key West was $112 for a one-way ticket and $217 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Key West?

    A passport is not required to fly from Chicago O'Hare Airport to Key West.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Key West?

    Only American Airlines offers inflight Wi-Fi service on the Chicago O'Hare Airport to Key West flight route.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Key West?

    The Embraer 170 is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Key West flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Key West?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Chicago O'Hare Airport and Key West, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Key West, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Key West are Delta and United Airlines. With an average price for the route of $345 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $485 and an overall rating of 7.4.

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

    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 Chicago O'Hare Airport to Key West.

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

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

    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 Key West with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and EYW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Key West?

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

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Key West

  • Looking for a cheap flight? 25% of our users found flights on this route for $253 or less one-way and $411 or less round-trip.

Prefer to fly direct from Chicago O'Hare Airport to Key West?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Key West.
Find which airlines fly direct from Chicago O'Hare Intl Airport to Key West Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Key West

Monday

United Airlines, American Airlines

United Airlines, American Airlines

Tuesday

United Airlines, American Airlines

United Airlines, American Airlines

Wednesday

United Airlines, American Airlines

United Airlines, American Airlines

Thursday

United Airlines, American Airlines

United Airlines, American Airlines

Friday

United Airlines, American Airlines

United Airlines, American Airlines

Saturday

United Airlines, American Airlines

United Airlines, American Airlines

Sunday

United Airlines, American Airlines

United Airlines, American Airlines

See more direct flights

Direct returns

Key West to Chicago O'Hare Intl

Monday

United Airlines, American Airlines

United Airlines, American Airlines

Tuesday

United Airlines, American Airlines

United Airlines, American Airlines

Wednesday

United Airlines, American Airlines

United Airlines, American Airlines

Thursday

United Airlines, American Airlines

United Airlines, American Airlines

Friday

United Airlines, American Airlines

United Airlines, American Airlines

Saturday

United Airlines, American Airlines

United Airlines, American Airlines

Sunday

United Airlines, American Airlines

United Airlines, American Airlines

See more direct flights

Reviews of the top 3 airlines serving from O'Hare Intl to Key West

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Key West. 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 O'Hare Intl to Key West? 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.
7.9
DeltaOverall score based on 7954 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Crew was friendly Love the entertainment in the seat head rest.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

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!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

Everything you need to know for your flight from O'Hare Intl to Key West

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