Which airports can I use when flying from Ontario to Key West?

Flights from Ontario to Key West usually depart from Ontario (ONT) and arrive at Key West (EYW).

What cabin classes can I book on flights from Ontario to Key West?

Only Economy Class is available on flights from Ontario to Key West.

Which airports do connecting flights from Ontario to Key West pass through?

Most connecting flights from Ontario to Key West pass through Houston George Bush Intcntl (IAH), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Ontario to Key West?

Yes. Flexible dates can save you up to 60% on flights from Ontario to Key West. Tuesday is the cheapest departure day at $348 round-trip on average, while Saturday is the most expensive at $866, a difference of $518. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Key West?

Some of the most popular sights in Key West are Duval Street, Key West Historic District and Mallory Square. These are among the most viewed places in Key West on KAYAK.

How long is a flight from Ontario to Key West?

A nonstop flight from Ontario to Key West takes 00m, covering 2,242 miles.

Do I need a passport to fly from Ontario to Key West?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Ontario to Key West changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $441 to $3,746. That means the highest observed fare was about 8x higher than the lowest one.

How are flight prices from Ontario to Key West looking right now?

One-way fares from Ontario to Key West are currently lower than usual. Average one-way flight prices are about $442, which is 15% below the typical average for this route.

What is the time difference between Ontario and Key West?

Key West is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Key West Airport (EYW)?

Key West Airport (EYW) hosts 5 major car rental companies, with daily rates averaging $67 for economy cars. Top options include: • Dollar • Hertz • Budget • Enterprise Rent-A-Car • Alamo

How much is a round-trip flight from Ontario to Key West?

Round-trip flights from Ontario to Key West typically range from $378 to $694. The lowest price found in the past 5 days was $441, on Delta.

Which airline is the cheapest to fly from Ontario to Key West?

Delta ($441) and American Airlines ($485) are the cheapest airlines to fly round-trip from Ontario to Key West according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Ontario to Key West?

Flights via Houston George Bush Intcntl (IAH) offer the most affordable fares, with an average round-trip price of $543. Based on KAYAK data over the past 3 months.

When flying from Ontario to Key West which airport offers the shortest layover?

Houston George Bush Intcntl (IAH) had the shortest average connection time for Ontario to Key West layovers at 4h 31m over the past 3 months.

$147 CHEAP FLIGHTS from Ontario to Key West (ONT - EYW)

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Cheapest round-trip

$441

Typical prices: $378-$694

Delta

Wed 12/5Sun 12/9

ONT - EYW • 2 stops

Cheapest one-way

$147

Typical prices: $342-$539

Multiple Airlines

Wed 12/5

ONT - EYW • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Ontario and Key West. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Ontario to Key West (ONT-EYW)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Key West

Sat, Dec 5 - Wed, Dec 9

5:12 pm - 10:48 amONT Ontario-EYW Key West

14h 36m2 stops Salt Lake City Atlanta Hartsfield-Jackson

2:06 pm - 8:58 pmEYW Key West-ONT Ontario

9h 52m1 stop Atlanta Hartsfield-Jackson

$441Delta

Sat, Dec 5 - Wed, Dec 9

6:00 am - 4:52 pmONT Ontario-EYW Key West

7h 52m1 stop Dallas/Fort Worth

1:52 pm - 10:07 pmEYW Key West-ONT Ontario

11h 15m1 stop Charlotte Douglas

$485American Airlines

Sat, Nov 14 - Wed, Nov 18

6:00 am - 4:55 pmONT Ontario-EYW Key West

7h 55m1 stop Dallas/Fort Worth

2:26 pm - 6:42 pmEYW Key West-ONT Ontario

7h 16m1 stop Dallas/Fort Worth

$525American Airlines

Sat, Nov 14 - Wed, Nov 18

6:30 am - 11:21 amONT Ontario-EYW Key West

25h 51m2 stops Denver Intl Tampa

10:04 am - 10:35 amEYW Key West-ONT Ontario

27h 31m2 stops Tampa Denver Intl

$535Multiple Airlines

Sat, Nov 14 - Wed, Nov 18

10:30 pm - 1:12 pmONT Ontario-EYW Key West

11h 42m2 stops Charlotte Douglas Miami

1:52 pm - 10:12 pmEYW Key West-ONT Ontario

11h 20m1 stop Charlotte Douglas

$575American Airlines

Thu, Jan 7 - Wed, Jan 13

5:07 pm - 10:53 amONT Ontario-EYW Key West

14h 46m2 stops Salt Lake City Atlanta Hartsfield-Jackson

5:00 pm - 9:44 pmEYW Key West-ONT Ontario

7h 44m1 stop Atlanta Hartsfield-Jackson

$576Delta

Sat, Dec 5 - Wed, Dec 9

7:00 am - 7:27 pmONT Ontario-EYW Key West

9h 27m2 stops Dallas/Fort Worth Miami

6:35 pm - 8:45 amEYW Key West-ONT Ontario

17h 10m2 stops Miami Phoenix Sky Harbor Intl

$583American Airlines

Thu, Jan 7 - Wed, Jan 13

1:24 pm - 9:28 amONT Ontario-EYW Key West

17h 04m2 stops Phoenix Sky Harbor Intl Miami

2:36 pm - 8:37 amEYW Key West-ONT Ontario

21h 01m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$617American Airlines

Fri, Dec 4 - Tue, Dec 8

11:08 pm - 10:48 amONT Ontario-EYW Key West

8h 40m1 stop Atlanta Hartsfield-Jackson

2:06 pm - 8:58 pmEYW Key West-ONT Ontario

9h 52m1 stop Atlanta Hartsfield-Jackson

$637Delta

Thu, Apr 29 - Mon, May 3

7:30 am - 5:02 pmONT Ontario-EYW Key West

6h 32m1 stop Dallas/Fort Worth

2:01 pm - 9:06 pmEYW Key West-ONT Ontario

10h 05m1 stop Charlotte Douglas

$703American Airlines

Booking Insights

Price, demand and travel trends for Ontario to Key West flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Ontario to Key West? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Key West departing in december.

Find deals

Cheapest flight	$147

One-way flight from Ontario to Key West

When to book flights from Ontario to Key West

Are your dates flexible? Find out the best times to travel from Ontario to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Key West?
Only Economy Class is available on flights from Ontario to Key West.
How long is a flight from Ontario to Key West?
A nonstop flight from Ontario to Key West takes 00m, covering 2,242 miles.
Do I need a passport to fly from Ontario to Key West?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
Have flight prices from Ontario to Key West changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $441 to $3,746. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Ontario to Key West looking right now?
One-way fares from Ontario to Key West are currently lower than usual. Average one-way flight prices are about $442, which is 15% below the typical average for this route.
What car rental options are available at Key West Airport (EYW)?
Key West Airport (EYW) hosts 5 major car rental companies, with daily rates averaging $67 for economy cars. Top options include:

• Dollar
• Hertz
• Budget
• Enterprise Rent-A-Car
• Alamo
Which airports can I use when flying from Ontario to Key West?
Flights from Ontario to Key West usually depart from Ontario (ONT) and arrive at Key West (EYW).
Which airports do connecting flights from Ontario to Key West pass through?
Most connecting flights from Ontario to Key West pass through Houston George Bush Intcntl (IAH), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Ontario to Key West?
Yes. Flexible dates can save you up to 60% on flights from Ontario to Key West. Tuesday is the cheapest departure day at $348 round-trip on average, while Saturday is the most expensive at $866, a difference of $518.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Ontario and Key West?
Key West is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Key West?
Some of the most popular sights in Key West are Duval Street, Key West Historic District and Mallory Square. These are among the most viewed places in Key West on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $348, about $518 less than Saturday fares (60% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Key West Airport.

• Parrot Key Hotel & Villas
• Margaritaville Beach House Key West
• Havana Cabana at Key West

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ONT - EYW

$147 Find Cheap Flights from Ontario to Key West - Compare and Save

Everything you should know

Cheap Flights from Ontario to Key West (ONT-EYW)

Recent round-trip flight deals from Ontario to Key West

Recent one-way flight deals from Ontario to Key West

Recent last minute flight deals from Ontario to Key West

Price, demand and travel trends for Ontario to Key West flights

How much is a round-trip flight from Ontario to Key West?

Which airline is the cheapest to fly from Ontario to Key West?

What is the cheapest layover airport when flying from Ontario to Key West?

When flying from Ontario to Key West which airport offers the shortest layover?

Key details for Ontario to Key West flights

Cheapest flight

When to book flights from Ontario to Key West

Your Ontario to Key West flight questions, answered

Your guide to booking Ontario to Key West flights

More options for your flight from Ontario to Key West

Complete your trip to Key West with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Key West

Find direct flights to and from Ontario and Key West

Flights from domestic origins to Key West

Flights to other popular destinations