United States
USD

COU - ONT

$333 Find Cheap Flights from Columbia to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$348
Typical prices: $398-$556
American Airlines
Tue 11/6Sat 11/10
COU - ONT • 1 stop
Cheapest one-way
$333
Typical prices: $473-$493
American Airlines
Fri 12/21
COU - ONT • 1 stop
When to travel
March
Cheapest • 31% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg $327 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 34m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Columbia to Ontario (COU-ONT)

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

Recent round-trip flight deals from Columbia to Ontario

Fri, Nov 6 - Tue, Nov 10
American Airlines Logo
5:11 pm - 11:46 pmCOU  Columbia Regional-ONT Ontario
8h 35m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 4:41 pmONT  Ontario-COU Columbia Regional
8h 41m1 stop Dallas/Fort Worth
$348American Airlines
Thu, Jan 28 - Thu, Feb 4
American Airlines Logo
5:11 pm - 11:13 pmCOU  Columbia Regional-ONT Ontario
8h 02m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 4:37 pmONT  Ontario-COU Columbia Regional
8h 37m1 stop Dallas/Fort Worth
$348American Airlines
Fri, Nov 6 - Tue, Nov 10
American Airlines Logo
5:11 pm - 11:46 pmCOU  Columbia Regional-ONT Ontario
8h 35m1 stop Dallas/Fort Worth
American Airlines Logo
9:50 am - 9:43 pmONT  Ontario-COU Columbia Regional
9h 53m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$354American Airlines
Thu, Jan 28 - Thu, Feb 4
American Airlines Logo
12:07 pm - 6:51 pmCOU  Columbia Regional-ONT Ontario
8h 44m1 stop Dallas/Fort Worth
American Airlines Logo
9:28 am - 9:50 pmONT  Ontario-COU Columbia Regional
10h 22m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$354American Airlines
Fri, Jan 8 - Wed, Jan 13
American Airlines Logo
6:50 am - 3:29 pmCOU  Columbia Regional-ONT Ontario
10h 39m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl
American Airlines Logo
9:28 am - 9:50 pmONT  Ontario-COU Columbia Regional
10h 22m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$359American Airlines
Thu, Jan 28 - Thu, Feb 4
American Airlines Logo
12:07 pm - 10:15 pmCOU  Columbia Regional-ONT Ontario
12h 08m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
9:28 am - 9:50 pmONT  Ontario-COU Columbia Regional
10h 22m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$422American Airlines
Thu, Nov 26 - Wed, Dec 2
United Airlines Logo
8:00 am - 3:59 pmCOU  Columbia Regional-ONT Ontario
9h 59m1 stop Chicago O'Hare Intl
United Airlines Logo
1:40 pm - 9:39 pmONT  Ontario-COU Columbia Regional
5h 59m1 stop Denver Intl
$458United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
9:00 am - 12:33 pmCOU  Columbia Regional-ONT Ontario
5h 33m1 stop Denver Intl
United Airlines Logo
1:00 pm - 8:30 pmONT  Ontario-COU Columbia Regional
5h 30m1 stop Denver Intl
$458United Airlines
Wed, Nov 4 - Sat, Nov 7
United Airlines Logo
9:01 am - 12:33 pmCOU  Columbia Regional-ONT Ontario
5h 32m1 stop Denver Intl
United Airlines Logo
1:29 pm - 8:41 pmONT  Ontario-COU Columbia Regional
5h 12m1 stop Denver Intl
$458United Airlines
Wed, Jan 6 - Tue, Jan 12
United Airlines Logo
9:00 am - 12:33 pmCOU  Columbia Regional-ONT Ontario
5h 33m1 stop Denver Intl
United Airlines Logo
1:00 pm - 8:30 pmONT  Ontario-COU Columbia Regional
5h 30m1 stop Denver Intl
$458United Airlines
Booking Insights

Price, demand and travel trends for Columbia 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 Columbia to Ontario?

Round-trip flights from Columbia to Ontario typically range from $398 to $556. The lowest price found in the past 5 days was $348, on American Airlines.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Columbia to Ontario. It’s 31% cheaper than the average day, while Saturday is the most expensive, with prices 76% higher.

Find deals

Key details for Columbia to Ontario flights

Low season

January

Cheapest flight

$333
Beat the crowds with an average 11% drop in travelers.
The most popular month to fly with an average 11% increase in travelers.
One-way flight from Columbia to Ontario

When to book flights from Columbia to Ontario

Are your dates flexible? Find out the best times to travel from Columbia 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 Columbia 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 Columbia to Ontario?

    Only Economy Class is available on flights from Columbia to Ontario.

  • How long is a flight from Columbia to Ontario?

    There are currently no nonstop flights available from Columbia to Ontario. Flights with 1 layover take between 5h 34m and 8h 02m in total, depending on the connection.

  • Do I need a passport to fly from Columbia 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 Columbia to Ontario flight?

    Round-trip flights from Columbia to Ontario range from $398 to $556, with an average of $553 over the past 12 months. Anything below $398 counts as a good deal.

  • Have flight prices from Columbia 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 $348 to $2,339. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from Columbia to Ontario are currently lower than usual. Average one-way flight prices are about $429, which is 13% 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 starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

    Flights from Columbia to Ontario usually depart from Columbia Regional (COU) and arrive at Ontario (ONT).

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

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

    • Dallas/Fort Worth (DFW) - 74% of one-stop connections
    • Denver Intl (DEN) - 24% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 3% of one-stop connections

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

    Yes. Flexible dates can save you up to 61% on flights from Columbia to Ontario. Tuesday is the cheapest departure day at $383 round-trip on average, while Saturday is the most expensive at $977, a difference of $594.

    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 Columbia to Ontario?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 34m, compared with 6h 43m via Dallas/Fort Worth (DFW) and 8h 02m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Columbia and Ontario?

    Ontario is 2 hours behind Columbia (Pacific Time vs Central 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 Columbia 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 $383, about $594 less than Saturday fares (61% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Columbia to Ontario trip for March. Fares historically average $383 round-trip in that month - typically $594 less than the most expensive month, which is December (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.

    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport
    • Ontario Airport Inn

More options for your flight from Columbia to Ontario

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario