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Florida Keys

$63+ Cheap flights from Ontario (ONT) to Florida Keys

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EYW
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Ontario to Florida Keys

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Florida Keys (zzEOA). 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 November 21, 2024.

Find flight deals from Ontario to Florida Keys

Cheapest flights from Ontario to Florida Keys
Explore the most affordable flight options available from Ontario to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Booking.com deal was found by Cheapflights users on 11/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:45 amONT - MIA
1 stop12h 38mFrontier
Sat 12/146:00 amMIA - ONT
1 stop20h 44mFrontier
Deal found 11/21$158
This Delta deal was found by Cheapflights users on 11/21. 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.
Fri 12/67:10 amONT - EYW
1 stop7h 14mDelta
Tue 12/106:30 pmEYW - ONT
1 stop7h 32mDelta
Deal found 11/21$368
This Alaska Airlines deal was found by Cheapflights users on 11/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/87:00 amONT - MIA
1 stop31h 55mAlaska Airlines
Fri 12/136:55 pmMIA - ONT
1 stop18h 41mAlaska Airlines
Deal found 11/21$429
This Expedia deal was found by Cheapflights users on 11/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/610:39 amONT - MIA
1 stop12h 13mMultiple Airlines
Thu 12/126:55 pmMIA - ONT
2 stops17h 58mMultiple Airlines
Deal found 11/21$437
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Fri 12/66:20 amONT - EYW
1 stop9h 34mAmerican Airlines
Tue 12/108:05 amEYW - ONT
2 stops13h 22mAmerican Airlines
Deal found 11/21$458
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Sun 12/227:30 pmONT - MIA
1 stop6h 45mAmerican Airlines
Thu 12/261:45 pmMIA - ONT
1 stop7h 40mAmerican Airlines
Deal found 11/21$476
This Delta deal was found by Cheapflights users on 11/21. 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.
Thu 11/286:00 amONT - MIA
1 stop9h 12mDelta
Fri 11/296:00 amMIA - ONT
1 stop7h 43mDelta
Deal found 11/21$492
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/181:40 pmONT - MIA
1 stop13h 14mUnited Airlines
Tue 12/244:55 pmMIA - ONT
1 stop8h 34mUnited Airlines
Deal found 11/20$535
This Southwest deal was found by Cheapflights users on 11/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:45 amONT - MIA
2 stops10h 00mSouthwest
Wed 1/18:00 amMIA - ONT
1 stop10h 55mSouthwest
Deal found 11/21$561
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Wed 12/185:05 amONT - EYW
2 stops26h 05mUnited Airlines
Sat 12/2110:00 amEYW - ONT
2 stops15h 29mUnited Airlines
Deal found 11/21$657
This Travelocity deal was found by Cheapflights users on 11/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/261:28 pmONT - EYW
2 stops16h 47mMultiple Airlines
Wed 1/12:00 pmEYW - ONT
3 stops22h 45mMultiple Airlines
Deal found 11/21$1,809

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Thu 1/23

6:45 am-1:54 am

1 stop16h 09m

Miami

Thu 1/30

6:14 pm-11:47 pm

1 stop8h 33m

$130

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Tue 1/7

6:10 am-8:16 pm

1 stop11h 06m

Miami

Tue 1/14

7:15 am-6:24 pm

1 stop14h 09m

$283

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Tue 1/7

6:00 am-6:15 pm

2 stops33h 15m

Miami

Tue 1/14

5:55 pm-10:38 am

1 stop19h 43m

$317

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Thu 2/13

5:13 pm-5:16 am

1 stop9h 03m

Miami

Thu 2/20

7:52 pm-6:19 pm

2 stops25h 27m

$349

OntarioKey West

ONT - EYW

ONTEYW

Ontario

Fri 12/6

7:10 am-5:24 pm

1 stop7h 14m

Key West

Tue 12/10

6:30 pm-11:02 pm

1 stop7h 32m

$368

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 12/15

10:00 pm-9:09 am

1 stop8h 09m

Miami

Tue 12/17

4:44 pm-11:02 pm

1 stop9h 18m

$376

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 1/6

5:35 am-4:45 pm

1 stop8h 10m

Miami

Fri 1/10

1:50 pm-8:45 pm

2 stops9h 55m

$409

OntarioKey West

ONT - EYW

ONTEYW

Ontario

Fri 12/6

6:20 am-6:54 pm

1 stop9h 34m

Key West

Tue 12/10

8:05 am-6:27 pm

2 stops13h 22m

$458

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Wed 1/15

5:10 am-10:15 pm

2 stops14h 05m

Miami

Sat 1/18

6:10 am-6:19 pm

1 stop15h 09m

$469

OntarioKey West

ONT - EYW

ONTEYW

Ontario

Mon 1/13

6:00 am-4:01 pm

1 stop7h 01m

Key West

Sun 1/19

10:00 am-8:51 pm

2 stops13h 51m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 20 results
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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.

Travel insights for flights from Ontario to Florida Keys

Get recent, data-driven insights about flights from Ontario to Florida Keys including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Florida Keys (average of $328). Flying from Ontario to Florida Keys in March is currently the most expensive (average of $492). 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.

Rainfall in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Florida Keys ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Florida Keys when rainfall is around 1.6 in.

Temperature in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Florida Keys, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 November 21, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and Alaska 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.
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,464 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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.

  • 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 ($63), American Airlines ($147), and Alaska Airlines ($157).

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Florida Keys (average of $328). Flying from Ontario to Florida Keys in March is currently the most expensive (average of $492). 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$468FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$393Average$535FlexibilityNo cancel feeOn-time71%
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