$128+ Cheap flights from Key West (EYW) to Illinois
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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Key West to Illinois 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.Cheap flight deals from Key West to Illinois
Keep the following information in mind while searching for Key West to Illinois flight deals. Data was last updated February 20, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (American Airlines) |
One-way from | $128 (Trip.com) |
Popular in | February |
Cheapest in | August |
Average price | $536 |
Good round-trip deal | $395 or less |
Good one-way deal | $244 or less |
Find flight deals from Key West to Illinois
Cheapest flights from Key West to IllinoisExplore the most affordable flight options available from Key West to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
Explore the most affordable flight options available from Key West to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
This American Airlines deal was found by Cheapflights users on 2/20. 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.
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 2/19. 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.
This American Airlines deal was found by Cheapflights users on 2/20. 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.
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Key West to Illinois within your budget
Customize your flight search to find flights from Key West to Illinois 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 February 20, 2025.
Fly from
Fly to
Route
Depart
Return
Price
Key WestChicago
EYW - ORD
EYWORD
Key West
Thu 4/24
12:56 pm-3:33 pm
Nonstop3h 37m
Chicago O'Hare Intl
Mon 4/28
8:05 am-12:22 pm
Nonstop3h 17m
Key WestChicago
EYW - ORD
EYWORD
Key West
Thu 4/24
3:00 pm-8:50 pm
1 stop6h 50m
Chicago O'Hare Intl
Mon 4/28
1:15 pm-8:30 pm
1 stop6h 15m
Key WestChicago
EYW - MDW
EYWMDW
Key West
Thu 4/24
6:13 pm-10:26 pm
1 stop5h 13m
Chicago Midway
Mon 4/28
6:04 am-2:05 pm
1 stop7h 01m
Key WestChicago
EYW - ORD
EYWORD
Key West
Fri 3/7
3:59 pm-6:40 pm
Nonstop3h 41m
Chicago O'Hare Intl
Tue 3/11
10:51 am-3:03 pm
Nonstop3h 12m
Key WestChicago
EYW - ORD
EYWORD
Key West
Tue 5/6
3:05 pm-11:32 pm
1 stop9h 27m
Key WestChicago
EYW - MDW
EYWMDW
Key West
Tue 4/15
10:00 am-4:08 pm
1 stop7h 08m
Key WestChicago
EYW - ORD
EYWORD
Key West
Tue 4/15
11:02 am-7:13 pm
1 stop9h 11m
Key WestChicago
EYW - ORD
EYWORD
Key West
Wed 3/26
10:55 am-6:31 pm
1 stop8h 36m
Key WestChicago
EYW - RFD
EYWRFD
Key West
Sun 2/23
8:53 am-10:02 am
1 stop26h 09m
Key WestChicago
EYW - ORD
EYWORD
Key West
Fri 4/18
7:00 am-8:31 am
1 stop26h 31m
Best time to book a flight from Key West to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Key West with our price prediction graph.
Travel insights for flights from Key West to Illinois
Get recent, data-driven insights about flights from Key West to Illinois including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Key West to Illinois?
Currently, August is the cheapest month in which you can book a flight from Key West to Illinois (average of $245). Flying from Key West to Illinois in March is currently the most expensive (average of $321). 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 EYW to IL?
Find hourly flight availability from Key West to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.
When flying from Key West to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Key West to Illinois
Explore weekly flight availability from Key West to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2025.
The most flights from EYW to USIL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated February 20, 2025.
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Cheri,Jan 2025
FAT - SEA
Related info for your journey
Find useful and relevant information for your journey from Key West to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Key West to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Key West to Illinois
Discover the top 2 airlines that operate flights from Key West to Illinois. 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 February 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$211 | Average$381 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$224 | Average$379 | FlexibilityNo cancel fee | On-time69% |