$256 Find Cheap Flights from Wilmington to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Wilmington to Ontario departing on 6/2. 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 Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Wilmington to Ontario, 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 Wilmington to Ontario, as well as popular online travel agencies
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Flight Deals

Book Cheap Wilmington to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Wilmington to Ontario 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 Wilmington to Ontario

Thu, Jun 18 - Mon, Jun 22
Multiple Airlines Logo
4:30 pm - 8:05 pm
ILM
-
YYZ
27h 35m
1 stop
Multiple Airlines Logo
8:10 am - 11:08 am
YYZ
-
ILM
26h 58m
1 stop
$489Multiple Airlines
Thu, May 28 - Mon, Jun 1
Multiple Airlines Logo
4:30 pm - 2:33 pm
ILM
-
YOW
22h 03m
1 stop
Multiple Airlines Logo
7:00 am - 8:09 pm
YOW
-
ILM
13h 09m
1 stop
$517Multiple Airlines
Thu, Jun 11 - Tue, Jun 16
Delta Logo
6:50 am - 6:54 pm
ILM
-
YUL
12h 04m
1 stop
Delta Logo
7:44 pm - 10:50 am
YUL
-
ILM
15h 06m
1 stop
$574Delta
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
6:34 pm - 9:50 am
ILM
-
YUL
15h 16m
1 stop
American Airlines Logo
10:30 am - 10:01 pm
YUL
-
ILM
11h 31m
1 stop
$585American Airlines
Wed, Jun 3 - Sun, Jun 7
United Airlines Logo
3:41 pm - 9:35 pm
ILM
-
YOW
5h 54m
1 stop
United Airlines Logo
6:05 am - 12:19 pm
YOW
-
ILM
6h 14m
1 stop
$605United Airlines
Wed, Jun 24 - Wed, Jul 1
American Airlines Logo
11:10 am - 11:05 pm
ILM
-
YYZ
11h 55m
1 stop
American Airlines Logo
7:26 am - 6:03 pm
YYZ
-
ILM
10h 37m
1 stop
$615American Airlines
Tue, Oct 13 - Sat, Oct 17
Delta Logo
12:15 pm - 8:28 pm
ILM
-
YYZ
8h 13m
1 stop
Delta Logo
7:59 am - 4:31 pm
YYZ
-
ILM
8h 32m
1 stop
$618Delta
Fri, Jun 26 - Sun, Jun 28
United Airlines Logo
7:30 am - 10:05 pm
ILM
-
YOW
14h 35m
1 stop
United Airlines Logo
6:05 am - 12:19 pm
YOW
-
ILM
6h 14m
1 stop
$680United Airlines
Fri, Jun 5 - Mon, Jun 8
WestJet Logo
6:27 pm - 7:00 pm
ILM
-
YQT
48h 33m
2 stops
WestJet Logo
7:50 pm - 1:41 pm
YQT
-
ILM
17h 51m
2 stops
$946WestJet
Fri, Jun 5 - Mon, Jun 8
WestJet Logo
6:27 pm - 7:00 pm
ILM
-
YQT
48h 33m
2 stops
WestJet Logo
7:50 pm - 1:41 pm
YQT
-
ILM
17h 51m
2 stops
$971WestJet
Booking Insights

KAYAK's insights & trends for Wilmington to Ontario flights

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

Which airlines provide the cheapest flights from Wilmington to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Wilmington to Ontario were found on Delta ($574) and American Airlines ($585).

Find deals

Good to know

Cheapest flight$256
Flight from Wilmington to Toronto

FAQs - booking Ontario flights

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

    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 Wilmington to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Wilmington to 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 Wilmington to Ontario?

    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 from Wilmington to Ontario with an airline and back with another airline.

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

    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 from Wilmington to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Wilmington to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Wilmington to Ontario. 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 Wilmington to Ontario? 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.
7.1
American AirlinesOverall score based on 11662 reviews
7.5Boarding
6.4Food
7.2Comfort
7.9Crew
6.9Entertainment
Airline reviews

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

10.0 ExcellentLJ, May 2026
CLT - OMA
Read more American Airlines reviews

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

Airlines should be prohibited from using the seats they get away with.

Got home at 3am after deboarding the plane. No compensation offered by American

The "on the ground" A/C was not working. It was so hot while waiting to get in the air, a passenger from the rear of the plan declared "I just can't!" and waited in the gangway until time to close the doors. It was miserable. But the crew were champs and had an amazing attitude. I know they were as miserable as we were but didn't let that affect their performance.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Cleared standby and gave up my seat. Terrible policy and boarding experience

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Ceiling fell down and had to have maintenance come and duct tape it up. No WiFi on the flight.

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

Information on your arrival and departure airports

Wilmington (ILM)