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Cheap flights from Ontario (ONT) to Florida Keys from $90

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 8/27. 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.
ONT — EYW
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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How far in advance should I book a flight from Ontario to Florida Keys?

Users have found that booking a flight from Ontario to Florida Keys at least 30 days early can save you up to 25% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from Ontario to Florida Keys for as little as $298 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $378 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Florida Keys?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Florida Keys. Flights to Florida Keys from Ontario in September are about $321 on average during September, but can be found for as low as $104.

What is the cheapest time of day to fly from ONT to EOA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Florida Keys as you normally would.

Cheap American Airlines flights from Ontario to Florida Keys

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and Florida Keys. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from Ontario to Florida Keys. It's recommended that users confirm their flight details before booking.
Fri 8/912:40 pmONT - MIA
1 stop9h 00mAmerican Airlines
Tue 8/207:55 pmMIA - ONT
1 stop7h 03mAmerican Airlines
Deal found 5/29$203
Fri 8/232:39 pmONT - MIA
1 stop7h 01mAmerican Airlines
Sat 8/315:18 amMIA - ONT
1 stop7h 36mAmerican Airlines
Deal found 5/28$208
Thu 8/812:40 pmONT - MIA
1 stop9h 00mAmerican Airlines
Tue 8/133:35 pmMIA - ONT
1 stop9h 52mAmerican Airlines
Deal found 5/29$232
Tue 6/410:39 amONT - MIA
1 stop8h 04mAmerican Airlines
Thu 7/47:30 amMIA - ONT
1 stop9h 18mAmerican Airlines
Deal found 5/29$315
Sun 9/1511:59 pmONT - EYW
2 stops11h 26mAmerican Airlines
Fri 9/201:46 pmEYW - ONT
2 stops9h 56mAmerican Airlines
Deal found 5/30$342
Sat 9/1411:59 pmONT - EYW
2 stops11h 26mAmerican Airlines
Fri 9/2012:53 pmEYW - ONT
1 stop10h 49mAmerican Airlines
Deal found 5/30$377
Sun 9/1510:40 pmONT - EYW
1 stop10h 35mAmerican Airlines
Fri 9/201:46 pmEYW - ONT
2 stops9h 56mAmerican Airlines
Deal found 5/30$395
Wed 7/104:31 pmONT - EYW
2 stops15h 04mAmerican Airlines
Tue 7/164:24 pmEYW - ONT
1 stop9h 36mAmerican Airlines
Deal found 5/29$492
Fri 6/146:00 amONT - EYW
1 stop7h 24mAmerican Airlines
Fri 6/212:25 pmEYW - ONT
2 stops10h 15mAmerican Airlines
Deal found 5/29$503

Cheap Frontier flights from Ontario to Florida Keys

Explore cheap flight options specifically provided by Frontier for the route between Ontario and Florida Keys. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on Frontier flights traveling from Ontario to Florida Keys. Check back soon if you're not seeing flights that suit your needs.
Mon 9/212:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/103:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/30$178
Mon 9/212:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/103:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$179
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/29$180
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop11h 32mFrontier
Deal found 5/29$181
Mon 9/912:49 amONT - MIA
1 stop20h 52mFrontier
Wed 9/113:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$182
Fri 8/3012:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/33:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$183
Mon 6/1012:59 amONT - MIA
1 stop25h 54mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/28$185
Tue 9/1012:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/173:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$186
Tue 8/2012:49 amONT - MIA
1 stop20h 52mFrontier
Mon 8/263:21 pmMIA - ONT
1 stop24h 11mFrontier
Deal found 5/29$188

Cheap Ontario to Florida Keys flights in May & June 2024

Find cheap flight options from Ontario to Florida Keys specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the best deals we've found on flights to Florida Keys in 2024 at this time. Check back soon for alternative fares.
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/29$180
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop11h 32mFrontier
Deal found 5/29$181
Mon 6/1012:59 amONT - MIA
1 stop25h 54mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/28$185
Wed 6/58:03 amONT - MIA
1 stop13h 57mFrontier
Thu 6/63:17 pmMIA - ONT
1 stop11h 27mFrontier
Deal found 5/29$188
Wed 6/512:49 amONT - MIA
1 stop21h 11mFrontier
Wed 6/127:30 amMIA - ONT
1 stop19h 19mFrontier
Deal found 5/29$189
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Mon 6/107:30 amMIA - ONT
1 stop26h 57mFrontier
Deal found 5/29$190
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Thu 6/67:30 amMIA - ONT
1 stop25h 53mFrontier
Deal found 5/29$193
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Thu 6/67:30 amMIA - ONT
1 stop19h 14mFrontier
Deal found 5/28$196
Wed 6/512:49 amONT - MIA
1 stop26h 04mFrontier
Thu 6/137:30 amMIA - ONT
1 stop19h 29mFrontier
Deal found 5/29$197

Ontario to Florida Keys 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Florida Keys in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
These are some of the best deals we've found on flights to Florida Keys in 2024 at this time. Check back soon for alternative fares.
Mon 9/212:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/103:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/30$178
Mon 9/212:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/103:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$179
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/29$180
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop11h 32mFrontier
Deal found 5/29$181
Mon 9/912:49 amONT - MIA
1 stop20h 52mFrontier
Wed 9/113:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$182
Fri 8/3012:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/33:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$183
Mon 6/1012:59 amONT - MIA
1 stop25h 54mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/28$185
Tue 9/1012:49 amONT - MIA
1 stop20h 52mFrontier
Tue 9/173:21 pmMIA - ONT
1 stop11h 18mFrontier
Deal found 5/29$186
Wed 6/58:03 amONT - MIA
1 stop13h 57mFrontier
Thu 6/63:17 pmMIA - ONT
1 stop11h 27mFrontier
Deal found 5/29$188

Ontario to Florida Keys flights leaving soon

Find last-minute flight options from Ontario to Florida Keys for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Have a look at some of the last-minute flights available departing from Ontario to Florida Keys. Users should be sure to double check the price, date, and time of their last-minute flight.
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop22h 42mFrontier
Deal found 5/29$180
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Wed 6/123:17 pmMIA - ONT
1 stop11h 32mFrontier
Deal found 5/29$181
Wed 6/58:03 amONT - MIA
1 stop13h 57mFrontier
Thu 6/63:17 pmMIA - ONT
1 stop11h 27mFrontier
Deal found 5/29$188
Wed 6/512:49 amONT - MIA
1 stop21h 11mFrontier
Wed 6/127:30 amMIA - ONT
1 stop19h 19mFrontier
Deal found 5/29$189
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Mon 6/107:30 amMIA - ONT
1 stop26h 57mFrontier
Deal found 5/29$190
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Thu 6/67:30 amMIA - ONT
1 stop25h 53mFrontier
Deal found 5/29$193
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Thu 6/67:30 amMIA - ONT
1 stop19h 14mFrontier
Deal found 5/28$196
Wed 6/512:49 amONT - MIA
1 stop26h 04mFrontier
Thu 6/137:30 amMIA - ONT
1 stop19h 29mFrontier
Deal found 5/29$197
Sat 6/812:59 amONT - MIA
1 stop21h 01mFrontier
Thu 6/137:30 amMIA - ONT
1 stop19h 29mFrontier
Deal found 5/30$200

One-way flights to Florida Keys from Ontario

Search for one-way flight options from Ontario to Florida Keys. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the best available options we've come across on one-way flights from Ontario to Florida Keys. Those needing a return flight from Ontario to Florida Keys can use the search form above.
Tue 8/271:32 pmONT - MIA
1 stop8h 09mFrontier
Deal found 5/30$90
Sat 8/247:30 amONT - MIA
1 stop14h 11mFrontier
Deal found 5/29$96
Fri 6/712:48 amONT - MIA
1 stop26h 05mFrontier
Deal found 5/29$97
Tue 8/131:32 pmONT - MIA
1 stop8h 09mFrontier
Deal found 5/29$98
Sat 8/37:21 pmONT - MIA
1 stop9h 13mAmerican Airlines
Deal found 5/28$99
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Deal found 5/29$100
Tue 6/412:59 amONT - MIA
1 stop21h 01mFrontier
Deal found 5/28$101
Fri 6/712:48 amONT - MIA
1 stop20h 20mFrontier
Deal found 5/29$102
Thu 6/67:26 pmONT - MIA
1 stop7h 29mAmerican Airlines
Deal found 5/29$104

Find flights from Ontario to Florida Keys within your budget

Customize your flight search to find flights from Ontario to Florida Keys 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$178 - $329

Route

Depart

Return

Price

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 9/2

1 stop20h 52m

Miami

Tue 9/10

1 stop11h 18m

$178

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 9/2

1 stop20h 52m

Miami

Tue 9/10

1 stop11h 18m

$179

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Tue 8/20

1 stop8h 09m

Miami

Tue 8/27

1 stop11h 18m

$180

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 9/9

1 stop20h 52m

Miami

Wed 9/11

1 stop11h 18m

$182

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Fri 8/30

1 stop20h 52m

Miami

Tue 9/3

1 stop11h 18m

$183

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Fri 8/9

1 stop9h 00m

Miami

Tue 8/20

1 stop7h 03m

$203

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Fri 8/23

1 stop7h 01m

Miami

Sat 8/31

1 stop7h 36m

$208

OntarioKey West

ONT - EYW

ONTEYW

Ontario

Wed 8/14

1 stop7h 18m

Key West

Tue 8/20

1 stop7h 54m

$256

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Wed 10/30

1 stop7h 23m

Miami

Mon 11/4

1 stop8h 05m

$329

Flights are sorted by cheapest first

Deals found on 5/30

No data available for this route at this time. Please check back soon.

Best time to book a flight from Ontario to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Ontario 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.

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated May 30, 2024.
Read reviews from past customers who have flown American Airlines, Frontier and United Airlines from Ontario to Florida Keys. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,192 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,457 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

JetBlue
7.6
Good
4,365 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Avianca
7.5
Good
3,651 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,777 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Florida Keys. 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 from for flights from Ontario to Florida Keys?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Florida Keys from Ontario.

  • Can I find flights from Ontario to Florida Keys for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Florida Keys for under $200. The cheapest flight booked recently is on Frontier for just $178, but on average you can expect to pay $193.

  • Are there last-minute flights available from Ontario to Florida Keys for under $200?

    There are currently 20+ open flights from Ontario to Florida Keys within the next 7 days for less than $200.

  • What are the cheapest airlines to fly from Ontario to Florida Keys one-way?

    The cheapest airlines for a one-way flight from Ontario to Florida Keys are Frontier ($90), American Airlines ($99), and JetBlue ($127).

  • What does ONT to EYW mean?

    Great question - ONT to EYW just means Ontario Airport to Key West Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: Marathon Airport (MTH), Key West Nas Airport (NQX), Key Largo Ocean Reef Airport (OCA), Port Largo Airport (KYL).

  • Can I find deals for flights from Ontario to Florida Keys that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Florida Keys flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Florida Keys with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Florida Keys flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Florida Keys that include hotel bookings?

    Yes. In addition to deals on Ontario to Florida Keys flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Florida Keys.

  • Can I find deals for business class flights from Ontario to Florida Keys?

    Yes. Cheapflights offers flight deals from Ontario to Florida Keys by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Florida Keys that allow pets onboard?

    Many airlines flying from Ontario to Florida Keys offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Florida Keys?

    Yes, you can often find last-minute deals on Ontario to Florida Keys flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Florida Keys flight deals updated?

    The Ontario to Florida Keys flight deals you see on this page were last updated on 5/30.

  • What is the cheapest month to book a flight from Ontario to Florida Keys?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Florida Keys (average of $374). Flying from Ontario to Florida Keys in March is currently the most expensive (average of $504). 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

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Top 2 airlines flying from Ontario to Florida Keys

Discover the top 2 airlines that operate flights from Ontario to Florida Keys. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$413Average$672FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$431Average$666FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from Ontario to Florida Keys by cabin class

Find flights from Ontario to Florida Keys, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Florida Keys?

Cheapflights helps you search for flights from Ontario to Florida Keys via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Florida Keys?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Florida Keys.

Can Cheapflights find flights from Ontario to Florida Keys with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Florida Keys, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Florida Keys become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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