CA $482 Cheap Flights from Ontario (ONT) to Key West (EYW)

View CA $482 flight on Sun, Apr 12, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Key West Intl. Airport (EYW)

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Cheap flights from Ontario (ONT) to Key West (EYW)

Prices were available within the past 7 days and start at CA $482 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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Find the cheapest month to fly from Ontario (ONT) to Key West (EYW)

September is typically the cheapest month to fly

From CA $435 - CA $940 per traveller.
Flight from Ontario to Key West (ONT - EYW) route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Key West Intl.
Distance
3589 km

Los Angeles to Key West Flights

The easy way to book your flights from Ontario to Key West 

With Expedia, it’s simple to find and book flights to Key West from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 13 airlines that cover this route. There are nonstop flights to Key West Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to Key West today, tomorrow, or this week.  

 

Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Key West Intl., EYW 

Sort your search results by price to find great deals on your flight from Ontario to Key West—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Key West from Ontario currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Key West  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Key West from Ontario 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Key West with Expedia today.

Frequently asked questions

How much is a flight from Los Angeles - Ontario Intl. Airport (ONT) to Key West Intl. Airport?
Pack your bags, because round-trip flights between Los Angeles - Ontario Intl. Airport (ONT) and Key West Intl. Airport (EYW) start from . That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to EYW?
The majority of flights can be cancelled online, but whether or not you incur a fee depends on your airline. If you do need to cancel your trip, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Ontario Airport to Key West Intl. Airport that have flexible change policies?
Many airlines will allow you to move your flight without a change fee. All you pay is the cost difference between the two flights. When looking for Ontario Airport to Key West Intl. Airport (EYW) flights, you'll see a "No change fees" filter for you to tick.
How many hours is the flight from Ontario Airport to Key West Intl. Airport?
It takes approximately 5 hours and 53 minutes to journey from Los Angeles - Ontario Intl. Airport (ONT) to Key West Intl. Airport (EYW). But with a solid playlist and an interesting book, the hours will pass by quicker.
How far is the flight from Ontario Airport to Key West Intl. Airport?
The flight distance between Los Angeles - Ontario Intl. Airport (ONT) and Key West Intl. Airport is 3,600 kilometres. Work your way through your travel song playlist or finish that novel and the journey will zip on by.
Which airlines fly direct from ONT to Key West Intl. Airport?
You won't find any airlines operating directly between Ontario Airport and Key West Intl. Airport, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip!
Are Ontario Airport to EYW flight tickets cheaper when they're purchased at the last minute?
It is possible to score a great last-minute deal from Los Angeles - Ontario Intl. Airport (ONT) to Key West Intl. Airport, but it can also be hit-or-miss. As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be sure you're always seeing the latest offers.

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