ONT - ILM

$366 Find Cheap Flights from Ontario to Wilmington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Wilmington departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Wilmington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Wilmington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Wilmington, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$401
Typical prices: $533-$430
Delta
Wed 7/29Wed 8/12
ONT - ILM • 1 stop
Cheapest one-way
$366
Multiple Airlines
Sat 7/11
ONT - ILM • 2 stops
Top airlines
Cheapest • from $401 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Wilmington. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $448 (round-trip)
Shortest trip • 6h 54m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Wilmington!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Wilmington (ONT-ILM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Wilmington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Wilmington

Wed, Jul 29 - Wed, Aug 12
Delta Logo
10:00 pm - 9:40 am
ONT
-
ILM
8h 40m
1 stop
Delta Logo
5:45 pm - 9:56 pm
ILM
-
ONT
7h 11m
1 stop
$401Delta
Sat, May 2 - Sat, May 9
Delta Logo
10:15 pm - 9:34 am
ONT
-
ILM
8h 19m
1 stop
Delta Logo
6:00 am - 10:57 am
ILM
-
ONT
7h 57m
1 stop
$402Delta
Tue, May 19 - Sat, May 23
American Airlines Logo
11:59 pm - 12:35 pm
ONT
-
ILM
9h 36m
2 stops
American Airlines Logo
6:09 pm - 10:36 pm
ILM
-
ONT
7h 27m
1 stop
$406American Airlines
Sat, Sep 12 - Wed, Sep 16
American Airlines Logo
7:20 am - 9:20 pm
ONT
-
ILM
11h 00m
2 stops
American Airlines Logo
7:18 am - 1:27 pm
ILM
-
ONT
9h 09m
2 stops
$411American Airlines
Mon, Aug 3 - Wed, Aug 12
Delta Logo
10:00 pm - 9:40 am
ONT
-
ILM
8h 40m
1 stop
Delta Logo
5:45 pm - 9:56 pm
ILM
-
ONT
7h 11m
1 stop
$425Delta
Wed, Jul 29 - Thu, Aug 13
Delta Logo
10:00 pm - 9:40 am
ONT
-
ILM
8h 40m
1 stop
Delta Logo
5:45 pm - 9:56 pm
ILM
-
ONT
7h 11m
1 stop
$450Delta
Wed, Jul 29 - Thu, Aug 13
Delta Logo
10:00 pm - 9:40 am
ONT
-
ILM
8h 40m
1 stop
Delta Logo
7:00 am - 6:01 pm
ILM
-
ONT
14h 01m
2 stops
$468Delta
Wed, Apr 15 - Wed, Apr 22
Delta Logo
12:49 pm - 11:59 pm
ONT
-
ILM
8h 10m
1 stop
Delta Logo
2:24 pm - 9:00 pm
ILM
-
ONT
9h 36m
1 stop
$471Delta
Sat, May 23 - Tue, May 26
American Airlines Logo
10:00 pm - 8:30 am
ONT
-
ILM
7h 30m
1 stop
American Airlines Logo
6:50 am - 11:47 am
ILM
-
ONT
7h 57m
1 stop
$473American Airlines
Fri, Jul 31 - Tue, Aug 11
Delta Logo
7:05 am - 6:03 pm
ONT
-
ILM
7h 58m
1 stop
Delta Logo
5:45 pm - 9:56 pm
ILM
-
ONT
7h 11m
1 stop
$474Delta
Booking Insights

KAYAK's insights & trends for Ontario to Wilmington flights

Get data-powered insights and trends into flights from Ontario to Wilmington to help you find the cheapest flights, the best time to fly and much more.

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

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 Wilmington departing in July.

Good to know

Low seasonFebruary
Cheapest flight$366
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Ontario to Wilmington

When to book flights from Ontario to Wilmington

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

FAQs for booking flights from Ontario to Wilmington

  • What is the cheapest flight from Ontario to Wilmington?

    In the last 3 days, the lowest price for a flight from Ontario to Wilmington was $366 for a one-way ticket and $401 for a round-trip.

  • Do I need a passport to fly between Ontario and Wilmington?

    No, a passport isn't needed to fly from Ontario to Wilmington. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Wilmington?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Wilmington?

    SkyTeam, and oneworld are the airline alliances operating flights between Ontario and Wilmington, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Wilmington, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Wilmington are Delta and American Airlines. With an average price for the route of $493 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $519 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Ontario to Wilmington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Wilmington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Wilmington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Wilmington from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Wilmington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Wilmington with an airline and back to Ontario with another airline. Booking your flights between Ontario and ILM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Wilmington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Wilmington from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Wilmington

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Wilmington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Wilmington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8368 reviews
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

10.0 ExcellentLorna, Mar 2026
LAX - PDX
Read more Delta reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Flight was delayed. No urgency by American Airlines team to assist those with connecting flights. It was basically you are on your own to run through the terminals to try and make your connection. Thanks, Mary

I have never been assaulted they way I was today in Charlotte - shame on American

One of our group members was struggling to walk. In Charlotte we asked for a wheelchair and she was accompanied by Desmond. I was impressed by his patience and attention. In Boston she received the same service. I didn’t get the name of the helper but she went above and beyond in assisting us. A great AA service

Flight was on-time, boarding was flawless and the crew was friendly.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

I appreciate that I finally got the seat I paid extra for this time. Thank you

It would have been nice if American tried to care.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Flights were constantly delayed. CRW took 50 minutes to get bags

Everything you need to know for your flight from Ontario to Wilmington

Information on your arrival and departure airports