CLE - ONT

$89 Find Cheap Flights from Cleveland to Ontario - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$199
Typical prices: $313-$511
Frontier
Sun 12/9Sat 12/15
CLE - ONT • 1 stop
Cheapest one-way
$89
Typical prices: $153-$285
Frontier
Wed 12/12
CLE - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Cleveland and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 15% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Las Vegas Harry Reid Intl (LAS)
Cheapest • Avg $306 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 55m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Cleveland to Ontario (CLE-ONT)

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

Recent round-trip flight deals from Cleveland to Ontario

Wed, Dec 9 - Tue, Dec 15
Frontier Logo
7:02 am - 11:51 amCLE  Cleveland Hopkins Intl-ONT Ontario
7h 49m1 stop Las Vegas Harry Reid Intl
Frontier Logo
11:00 am - 6:58 amONT  Ontario-CLE Cleveland Hopkins Intl
16h 58m1 stop Las Vegas Harry Reid Intl
$199Frontier
Sat, Dec 12 - Tue, Dec 15
Frontier Logo
7:02 am - 6:31 pmCLE  Cleveland Hopkins Intl-ONT Ontario
14h 29m1 stop Las Vegas Harry Reid Intl
Frontier Logo
11:00 am - 6:58 amONT  Ontario-CLE Cleveland Hopkins Intl
16h 58m1 stop Las Vegas Harry Reid Intl
$200Frontier
Mon, Dec 7 - Wed, Dec 16
Delta Logo
7:10 am - 12:17 pmCLE  Cleveland Hopkins Intl-ONT Ontario
8h 07m1 stop Salt Lake City
Delta Logo
1:11 pm - 11:22 pmONT  Ontario-CLE Cleveland Hopkins Intl
7h 11m1 stop Salt Lake City
$325Delta
Mon, Dec 7 - Sat, Dec 12
Delta Logo
7:10 am - 12:17 pmCLE  Cleveland Hopkins Intl-ONT Ontario
8h 07m1 stop Salt Lake City
Delta Logo
1:11 pm - 11:22 pmONT  Ontario-CLE Cleveland Hopkins Intl
7h 11m1 stop Salt Lake City
$325Delta
Sat, Nov 21 - Fri, Nov 27
United Airlines Logo
4:51 pm - 8:51 pmCLE  Cleveland Hopkins Intl-ONT Ontario
7h 00m1 stop Denver Intl
United Airlines Logo
6:37 pm - 7:00 amONT  Ontario-CLE Cleveland Hopkins Intl
9h 23m1 stop San Francisco
$345United Airlines
Wed, Dec 16 - Sun, Dec 20
American Airlines Logo
6:08 am - 12:38 pmCLE  Cleveland Hopkins Intl-ONT Ontario
9h 30m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
10:34 am - 9:25 pmONT  Ontario-CLE Cleveland Hopkins Intl
7h 51m1 stop Dallas/Fort Worth
$397American Airlines
Wed, Nov 18 - Thu, Nov 19
Alaska Airlines Logo
8:23 am - 3:13 pmCLE  Cleveland Hopkins Intl-ONT Ontario
9h 50m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:09 pm - 8:53 pmONT  Ontario-CLE Cleveland Hopkins Intl
25h 44m1 stop Seattle/Tacoma Intl
$400Alaska Airlines
Wed, Dec 16 - Sun, Dec 20
American Airlines Logo
6:00 am - 12:38 pmCLE  Cleveland Hopkins Intl-ONT Ontario
9h 38m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
11:59 pm - 10:53 amONT  Ontario-CLE Cleveland Hopkins Intl
7h 54m1 stop Dallas/Fort Worth
$402American Airlines
Sat, Nov 14 - Wed, Nov 18
Multiple Airlines Logo
8:23 am - 3:13 pmCLE  Cleveland Hopkins Intl-ONT Ontario
9h 50m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
5:07 pm - 5:48 amONT  Ontario-CLE Cleveland Hopkins Intl
9h 41m1 stop Las Vegas Harry Reid Intl
$447Multiple Airlines
Wed, Dec 2 - Mon, Dec 7
United Airlines Logo
2:51 pm - 9:59 pmCLE  Cleveland Hopkins Intl-ONT Ontario
10h 08m1 stop Houston George Bush Intcntl
United Airlines Logo
5:00 am - 2:39 pmONT  Ontario-CLE Cleveland Hopkins Intl
6h 39m1 stop Denver Intl
$475United Airlines
Booking Insights

Price, demand and travel trends for Cleveland to Ontario flights

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

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

Round-trip flights from Cleveland to Ontario typically range from $313 to $511. The lowest price found in the past 5 days was $199, on Frontier.

What's the cheapest day of the week to fly from Cleveland to Ontario?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Cleveland to Ontario. It’s 13% cheaper than the average day, while Saturday is the most expensive, with prices 21% higher.

What’s the cheapest month to fly from Cleveland to Ontario?

•February is the cheapest month to fly from Cleveland to Ontario at $349 round-trip.
•September ($586) and August ($579) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 67% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Cleveland to Ontario flights

Low season

August

Cheapest flight

$89
Beat the crowds with an average 45% drop in travelers.
The most popular month to fly with an average 47% increase in travelers.
One-way flight from Cleveland to Ontario

When to book flights from Cleveland to Ontario

Are your dates flexible? Find out the best times to travel from Cleveland to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Cleveland to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Cleveland to Ontario?

    Three cabin classes are available on flights from Cleveland to Ontario:

    • Economy Class
    • Premium Economy Class
    • First Class

  • How long is a flight from Cleveland to Ontario?

    A nonstop flight from Cleveland to Ontario takes 00m, covering 2,002 miles.

  • Do I need a passport to fly from Cleveland to Ontario?

    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.

  • How much should I expect to pay for a Cleveland to Ontario flight?

    Round-trip flights from Cleveland to Ontario range from $313 to $511, with an average of $409 over the past 12 months. Anything below $313 counts as a good deal.

  • Have flight prices from Cleveland to Ontario 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 $188 to $1,744. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Cleveland to Ontario looking right now?

    One-way fares from Cleveland to Ontario are currently lower than usual. Average one-way flight prices are about $179, which is 14% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Cleveland to Ontario?

    Flights from Cleveland to Ontario usually depart from Cleveland Hopkins Intl (CLE) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Cleveland to Ontario pass through?

    One-stop flights from Cleveland to Ontario most commonly connect through:

    • Las Vegas Harry Reid Intl (LAS) - 35% of one-stop connections
    • Denver Intl (DEN) - 30% of one-stop connections
    • Dallas/Fort Worth (DFW) - 15% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Cleveland to Ontario?

    Yes. Flexible dates can save you up to 29% on flights from Cleveland to Ontario. Tuesday is the cheapest departure day at $356 round-trip on average, while Saturday is the most expensive at $496, a difference of $140.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Cleveland to Ontario?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 55m, compared with 7h 08m via Phoenix Sky Harbor Intl (PHX) and 7h 23m via Salt Lake City (SLC).

  • What is the time difference between Cleveland and Ontario?

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

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Cleveland to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $356, about $140 less than Saturday fares (28% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Cleveland to Ontario trip for February. Fares historically average $349 round-trip in that month - typically $237 less than the most expensive month, which is September (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • Holiday Inn Ontario Airport By IHG

More options for your flight from Cleveland to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario