$87 Find Cheap Flights from Chicago to Key Largo - Compare and Save

When flying out of Chicago you’ll be using one of these airports: Chicago Midway, Chicago O'Hare Intl or Chicago Greater Rockford. Key Largo does not have its own airport so you’ll be flying into nearby Miami airport, which is 49.7 mi away.

Direct flights cover the 1,186 miles separating Chicago and Key Largo in about 3h 00m.

62 direct flights run between Chicago and Key Largo on a daily basis. On average, there are about 435 departures each week.

Consider leaving on a Sunday and avoid Mondays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

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 to Key Largo.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

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 Largo with an airline and back to Chicago with another airline.

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 Largo from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

In the last 5 days, the cheapest one-way ticket between Chicago and Key Largo found on KAYAK was with Frontier for $29. Frontier offered a round-trip connection from $57 and JetBlue from $89.