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ILM - ONT

$394 Find Cheap Flights from Wilmington to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$489
Typical prices: $374-$545
Delta
Fri 1/19Fri 1/26
ILM - ONT • 1 stop
Cheapest one-way
$394
Typical prices: $369-$484
United Airlines
Sun 10/28
ILM - ONT • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Wilmington and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 23% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $445 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 7h 56m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Wilmington to Ontario (ILM-ONT)

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

Recent round-trip flight deals from Wilmington to Ontario

Tue, Jan 19 - Tue, Jan 26
Delta Logo
5:45 pm - 10:14 pmILM  Wilmington New Hanover County-ONT Ontario
7h 29m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 11:04 pmONT  Ontario-ILM Wilmington New Hanover County
8h 04m1 stop Atlanta Hartsfield-Jackson
$489Delta
Wed, Mar 3 - Sun, Mar 7
American Airlines Logo
7:00 am - 1:32 pmILM  Wilmington New Hanover County-ONT Ontario
9h 32m1 stop Dallas/Fort Worth
American Airlines Logo
10:40 pm - 10:33 amONT  Ontario-ILM Wilmington New Hanover County
8h 53m1 stop Charlotte Douglas
$512American Airlines
Sat, Oct 31 - Sat, Nov 7
United Airlines Logo
6:00 am - 6:47 pmILM  Wilmington New Hanover County-ONT Ontario
15h 47m2 stops Newark Chicago O'Hare Intl
United Airlines Logo
7:00 am - 11:44 pmONT  Ontario-ILM Wilmington New Hanover County
13h 44m2 stops Chicago O'Hare Intl Newark
$539United Airlines
Tue, Jan 19 - Tue, Jan 26
United Airlines Logo
6:00 am - 5:47 pmILM  Wilmington New Hanover County-ONT Ontario
14h 47m2 stops Newark San Francisco
United Airlines Logo
6:53 pm - 11:33 amONT  Ontario-ILM Wilmington New Hanover County
13h 40m2 stops San Francisco Newark
$539United Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
2:20 pm - 10:42 amILM  Wilmington New Hanover County-ONT Ontario
23h 22m3 stops Tampa Atlanta Hartsfield-Jackson Denver Intl
Multiple Airlines Logo
11:52 am - 2:43 pmONT  Ontario-ILM Wilmington New Hanover County
23h 51m3 stops Denver Intl Tampa Greater Wilmington
$542Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
2:20 pm - 10:42 amILM  Wilmington New Hanover County-ONT Ontario
23h 22m2 stops Tampa Denver Intl
Multiple Airlines Logo
11:52 am - 2:43 pmONT  Ontario-ILM Wilmington New Hanover County
23h 51m3 stops Denver Intl Tampa Greater Wilmington
$562Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Delta Logo
6:20 am - 11:06 amILM  Wilmington New Hanover County-ONT Ontario
7h 46m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:16 pm - 9:56 pmONT  Ontario-ILM Wilmington New Hanover County
6h 40m1 stop Atlanta Hartsfield-Jackson
$576Delta
Tue, Jan 19 - Tue, Jan 26
American Airlines Logo
8:00 am - 6:51 pmILM  Wilmington New Hanover County-ONT Ontario
13h 51m2 stops Charlotte Douglas Dallas/Fort Worth
American Airlines Logo
10:38 am - 10:49 pmONT  Ontario-ILM Wilmington New Hanover County
9h 11m1 stop Dallas/Fort Worth
$581American Airlines
Wed, Feb 3 - Sat, Feb 6
United Airlines Logo
12:14 pm - 9:40 pmILM  Wilmington New Hanover County-ONT Ontario
12h 26m2 stops Newark Houston George Bush Intcntl
United Airlines Logo
6:00 am - 11:59 pmONT  Ontario-ILM Wilmington New Hanover County
14h 59m2 stops Houston George Bush Intcntl Newark
$610United Airlines
Wed, Mar 3 - Sun, Mar 7
American Airlines Logo
6:00 am - 1:32 pmILM  Wilmington New Hanover County-ONT Ontario
10h 32m2 stops Miami Dallas/Fort Worth
American Airlines Logo
10:40 pm - 10:33 amONT  Ontario-ILM Wilmington New Hanover County
8h 53m1 stop Charlotte Douglas
$634American Airlines
Booking Insights

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

Round-trip flights from Wilmington to Ontario typically range from $374 to $545. The lowest price found in the past 5 days was $489, on Delta.

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Key details for Wilmington to Ontario flights

Low season

May

Cheapest flight

$394
Beat the crowds with an average 73% drop in travelers.
The most popular month to fly with an average 8% increase in travelers.
One-way flight from Wilmington to Ontario

When to book flights from Wilmington to Ontario

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

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

  • How long is a flight from Wilmington to Ontario?

    A nonstop flight from Wilmington to Ontario takes 00m, covering 2,253 miles.

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

    Round-trip flights from Wilmington to Ontario range from $374 to $545, with an average of $486 over the past 12 months. Anything below $374 counts as a good deal.

  • Have flight prices from Wilmington 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 $489 to $2,886. That means the highest observed fare was about 6x higher than the lowest one.

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

    One-way fares from Wilmington to Ontario are currently higher than usual. Average one-way flight prices are about $539, which is 46% above 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 Wilmington to Ontario?

    Flights from Wilmington to Ontario usually depart from Wilmington New Hanover County (ILM) and arrive at Ontario (ONT).

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

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

    • Dallas/Fort Worth (DFW) - 52% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 43% of one-stop connections
    • Charlotte Douglas (CLT) - 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 61% on flights from Wilmington to Ontario. Wednesday is the cheapest departure day at $378 round-trip on average, while Sunday is the most expensive at $968, a difference of $590.

    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 Wilmington to Ontario?

    Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 7h 39m, compared with 7h 56m via Dallas/Fort Worth (DFW) and 8h 02m via Charlotte Douglas (CLT).

  • What is the time difference between Wilmington and Ontario?

    Ontario is 3 hours behind Wilmington (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 Wilmington 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 Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $378, about $590 less than Sunday fares (61% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Wilmington to Ontario trip for January. Fares historically average $374 round-trip in that month - typically $347 less than the most expensive month, which is March (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 Wilmington to Ontario

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario