HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$94+ Cheap flights from O'Hare Intl (ORD) to Key West (EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EYW
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Key West are usually found in June or July, booked 86 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Key West

Cheapest flights from O'Hare Intl to Key West
Explore the most affordable flight options available from O'Hare Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:34 pm
ORD
-
EYW
2 stops17h 37m
Multiple Airlines
Thu 4/91:57 pm
EYW
-
ORD
1 stop10h 39m
Multiple Airlines
Deal found 3/18$300
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:52 pm
ORD
-
EYW
1 stop17h 50m
Multiple Airlines
Sat 4/2511:54 am
EYW
-
ORD
2 stops13h 30m
Multiple Airlines
Deal found 3/18$301
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:21 pm
ORD
-
EYW
1 stop15h 45m
Multiple Airlines
Wed 4/811:51 am
EYW
-
ORD
1 stop12h 45m
Multiple Airlines
Deal found 3/18$303
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:51 pm
ORD
-
EYW
2 stops15h 15m
Multiple Airlines
Wed 4/2211:51 am
EYW
-
ORD
1 stop22h 14m
Multiple Airlines
Deal found 3/18$304
This Mytrip deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:05 am
ORD
-
EYW
1 stop5h 25m
Spirit Airlines
Thu 4/1612:26 pm
EYW
-
ORD
3 stops21h 39m
Spirit Airlines
Deal found 3/18$305
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:52 pm
ORD
-
EYW
1 stop17h 50m
Multiple Airlines
Sun 4/264:38 pm
EYW
-
ORD
1 stop17h 27m
Multiple Airlines
Deal found 3/18$306
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:52 pm
ORD
-
EYW
1 stop13h 57m
Multiple Airlines
Sun 4/264:38 pm
EYW
-
ORD
1 stop17h 27m
Multiple Airlines
Deal found 3/18$308
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:00 am
ORD
-
EYW
Nonstop3h 24m
United Airlines
Wed 4/153:52 pm
EYW
-
ORD
Nonstop3h 44m
United Airlines
Deal found 3/16$309
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:10 am
ORD
-
EYW
Nonstop3h 28m
American Airlines
Wed 5/131:08 pm
EYW
-
ORD
Nonstop3h 47m
American Airlines
Deal found 3/20$310
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:52 pm
ORD
-
EYW
1 stop13h 57m
Multiple Airlines
Sat 4/2511:54 am
EYW
-
ORD
2 stops13h 30m
Multiple Airlines
Deal found 3/16$311
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:10 pm
ORD
-
EYW
2 stops19h 28m
Multiple Airlines
Thu 4/91:57 pm
EYW
-
ORD
1 stop10h 39m
Multiple Airlines
Deal found 3/16$312
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:10 pm
ORD
-
EYW
2 stops17h 11m
Multiple Airlines
Fri 4/109:49 am
EYW
-
ORD
1 stop15h 06m
Multiple Airlines
Deal found 3/18$313

Find flight deals from O'Hare Intl to Key West

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$300
(Kiwi.com)

One-way from

$94
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$549

Good round-trip deal

$354 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Key West flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Key West flights.
Search Deals
From Chicago O'Hare Intl to Key West
Search Deals
One-way flight from Chicago O'Hare Intl to Key West
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Key West.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Key West.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Tue 8/11

5:00 am-1:34 pm

1 stop7h 34m

Key West

Sat 8/15

4:05 pm-6:30 pm

Nonstop3h 25m

$436

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Fri 4/17

5:59 pm-12:42 pm

1 stop17h 43m

Key West

Wed 4/22

2:40 pm-8:16 pm

1 stop6h 36m

$467
Quickest round-trip

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sat 4/4

10:35 am-2:51 pm

Nonstop3h 16m

Key West

Tue 4/7

3:52 pm-6:36 pm

Nonstop3h 44m

$495

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sat 4/4

9:30 pm-5:39 pm

2 stops19h 09m

Key West

Thu 4/9

4:38 pm-12:45 am

1 stop9h 07m

$541

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sun 5/3

10:43 am-3:07 pm

Nonstop3h 24m

Key West

Wed 5/6

4:47 pm-11:15 pm

1 stop7h 28m

$577

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Fri 4/17

2:20 pm-4:42 pm

2 stops25h 22m

Key West

Wed 4/22

6:22 pm-8:49 am

2 stops15h 27m

$644

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sat 5/16

10:43 am-3:07 pm

Nonstop3h 24m

Key West

Sat 5/30

2:26 pm-9:00 pm

1 stop7h 34m

$656

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sun 8/30

6:00 am-1:34 pm

1 stop6h 34m

Key West

Sun 9/6

7:00 am-9:25 am

Nonstop3h 25m

$668

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Sun 4/12

7:30 am-3:57 pm

1 stop7h 27m

Key West

Thu 4/16

4:38 pm-11:15 pm

1 stop7h 37m

$677

ChicagoKey West

ORD - EYW

ORDEYW

Chicago O'Hare Intl

Thu 4/30

7:26 am-1:45 pm

2 stops29h 19m

Key West

Sat 5/2

2:49 pm-11:37 pm

1 stop9h 48m

$754

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from O'Hare Intl to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Key West in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Key West

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Key West. Price data was last updated on March 13, 2026.

The price you pay for your flight from Chicago O'Hare Intl Airport to Key West may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Key West (average of $246). Flying from Chicago O'Hare Intl Airport to Key West in November is currently the most expensive (average of $323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to EYW?

Find hourly flight availability from O'Hare Intl to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2026.

When flying from Chicago O'Hare Intl Airport to Key West, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Chicago O'Hare Intl Airport to Key West flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Key West trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Terry Ward

Terry Ward

Expert on EYW

Florida-based travel writer and journalist Terry Ward lives in Tampa and has enjoyed watching the city and its hotel offerings grow to match the area's spectacular Gulf of Mexico beaches.

Read more

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated March 21, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to Key West. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
7.9
Good
8,313 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
9,451 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.1
Good
11,488 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Spirit Airlines
6.3
Okay
8,533 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Key West from Chicago O'Hare Intl?

    Most people fly into Key West (EYW) if they book a flight to Key West from Chicago O'Hare Intl. On average, Key West has 5 inbound flights from Chicago O'Hare Intl per day from 4 airlines. Key West is conveniently located just 2.6 mi from Key West’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Key West?

    Airlines like United Airlines and Delta fly from Chicago O'Hare Intl Airport to Key West in about 7h 34m. The time it takes to get you to your destination can typically vary by up to 10h 09m. The distance from Chicago O'Hare Intl Airport to Key West is about 1253 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Key West round-trip?

    Cheapflights users have booked flights from Chicago O'Hare Intl Airport to Key West round-trip from $145. Other airlines that can offer you cheap pricing are Delta, from $248, and United Airlines, from $249. These flights start at 66% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Key West?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Key West are American Airlines (79%), Envoy Air (79%) and Republic Airways (78%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Key West?

    Looking at all options, your cheapest flight can be booked for $158. While the most popular route (Chicago O'Hare Intl - Key West) can be booked for $249 on average, our data indicates $353 when flying from Chicago O'Hare Intl Airport to Key West.

  • Can I find deals for flights from O'Hare Intl to Key West that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Key West.

  • Can I find deals for business class flights from O'Hare Intl to Key West?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Key West (average of $246). Flying from Chicago O'Hare Intl Airport to Key West in November is currently the most expensive (average of $323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from O'Hare Intl to Key West

Discover the top 4 airlines that operate flights from O'Hare Intl to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$145Average$376FlexibilityNo cancel feeOn-time65%
DeltaCheapest$248Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$249Average$429FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$310Average$462FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.