ONT - ILM

$185 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 7/26. 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

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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Flights 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

Sat, Aug 23 - Tue, Aug 26
Delta Logo
11:45 am - 11:12 pmONT-ILM
8h 27m1 stop
Delta Logo
6:00 am - 10:35 amILM-ONT
7h 35m1 stop
$319Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
11:45 am - 11:12 pmONT-ILM
8h 27m1 stop
Delta Logo
6:00 am - 12:14 pmILM-ONT
9h 14m2 stops
$324Delta
Find Deal
Tue, Sep 2 - Sat, Sep 6
Delta Logo
4:50 pm - 9:42 amONT-ILM
13h 52m2 stops
Delta Logo
2:55 pm - 10:40 pmILM-ONT
10h 45m2 stops
$329Delta
Find Deal
Thu, Aug 7 - Mon, Aug 11
American Airlines Logo
6:17 am - 9:16 pmONT-ILM
11h 59m2 stops
American Airlines Logo
5:00 pm - 10:48 pmILM-ONT
8h 48m1 stop
$351American Airlines
Find Deal
Thu, Aug 7 - Mon, Aug 11
American Airlines Logo
6:17 am - 9:16 pmONT-ILM
11h 59m2 stops
American Airlines Logo
6:44 am - 11:32 amILM-ONT
7h 48m2 stops
$356American Airlines
Find Deal
Tue, Jul 22 - Thu, Jul 24
United Airlines Logo
6:28 pm - 3:24 pmONT-ILM
17h 56m2 stops
United Airlines Logo
4:59 pm - 10:06 pmILM-ONT
8h 07m1 stop
$651United Airlines
Find Deal
Tue, Jul 15 - Tue, Jul 22
United Airlines Logo
6:28 pm - 3:24 pmONT-ILM
17h 56m2 stops
United Airlines Logo
4:59 pm - 10:11 pmILM-ONT
8h 12m1 stop
$652United Airlines
Find Deal
Wed, Aug 13 - Fri, Aug 22
Alaska Airlines Logo
4:00 pm - 10:50 amONT-ILM
15h 50m2 stops
Alaska Airlines Logo
2:16 pm - 11:53 pmILM-ONT
12h 37m2 stops
$668Alaska Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
Alaska Airlines Logo
6:00 am - 10:56 pmONT-ILM
13h 56m2 stops
Alaska Airlines Logo
1:29 pm - 11:53 pmILM-ONT
13h 24m2 stops
$701Alaska Airlines
Find Deal
Fri, Jul 18 - Wed, Jul 23
 Logo
7:00 am - 11:35 amONT-ILM
25h 35m2 stops
 Logo
7:00 am - 8:54 pmILM-ONT
16h 54m2 stops
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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.

What’s the cheapest day of the week to fly from Ontario to Wilmington?

The average price of all round-trip flights from Ontario to Wilmington clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Wilmington on a Monday and more expensive on a Thursday. On your return trip to Ontario, you should consider flying back on a Saturday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Ontario to Wilmington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Wilmington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Wilmington is January, where tickets cost $319 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $668 and $634 respectively.

Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$185
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 25% lower on average.
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 $185 for a one-way ticket and $319 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, Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Wilmington, with oneworld 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 $418 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $502 and an overall rating of 7.2.

  • 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.
8.0
DeltaOverall score based on 7973 reviews
8.5Crew
7.3Food
7.9Entertainment
8.2Boarding
7.9Comfort
Airline reviews

Crew was excellent. Comfort seats not as nice as other kinds of planes.

10.0 ExcellentMary, Jun 2025SAN - ATL
Read more Delta reviews

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

In flight connectivity (via T-Mobile) was often not working.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

They lost my luggage and it didn’t get delivered until the next day.

3 hours late. Not even water offered on a 2.25 hour flight.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

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

Information on your arrival and departure airports

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