HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wilmington

$350+ Cheap flights from Ontario to Wilmington (ONT - ILM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Mar 13 — Mar 201
Thu 3/13
Thu 3/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Wilmington with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Wilmington

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Wilmington (ILM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(American Airlines)

One-way from

$350
(Delta)

Popular in

November

Cheapest in

January

Average price

$726
Provider with most accurate pricing for Ontario-Wilmington New Hanover County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Wilmington New Hanover County flights.
Search Deals
From Ontario to Wilmington New Hanover County
Search Deals
One-way flight from Ontario to Wilmington New Hanover County
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Ontario to Wilmington

Cheapest flights from Ontario to Wilmington
Explore the most affordable flight options available from Ontario to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1810:29 pmONT - ILM
1 stop6h 50mAmerican Airlines
Sat 7/265:00 amILM - ONT
2 stops11h 50mAmerican Airlines
Deal found 3/6$389
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/196:00 amONT - ILM
2 stops14h 51mUnited Airlines
Wed 3/266:00 amILM - ONT
2 stops15h 04mUnited Airlines
Deal found 3/7$524
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/611:40 pmONT - ILM
1 stop8h 22mDelta
Fri 6/136:25 pmILM - ONT
1 stop7h 04mDelta
Deal found 3/7$629
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/187:30 amONT - ILM
3 stops23h 38mAlaska Airlines
Sat 7/2612:35 pmILM - ONT
3 stops23h 48mAlaska Airlines
Deal found 3/6$1,038

Find flights from Ontario to Wilmington within your budget

Customize your flight search to find flights from Ontario to Wilmington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 8, 2025.

Fly from

Ontario

Fly to

Wilmington

Route

Depart

Return

Price

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 7/18

10:29 pm-8:19 am

1 stop6h 50m

Wilmington New Hanover County

Sat 7/26

5:00 am-1:50 pm

2 stops11h 50m

$389

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 3/19

6:00 am-11:51 pm

2 stops14h 51m

Wilmington New Hanover County

Wed 3/26

6:00 am-6:04 pm

2 stops15h 04m

$524

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 6/6

11:40 pm-11:02 am

1 stop8h 22m

Wilmington New Hanover County

Fri 6/13

6:25 pm-10:29 pm

1 stop7h 04m

$629

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 7/18

7:30 am-10:08 am

3 stops23h 38m

Wilmington New Hanover County

Sat 7/26

12:35 pm-9:23 am

3 stops23h 48m

$1,038

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 3/24

12:46 pm-10:39 pm

1 stop6h 53m

$350

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 3/24

5:44 pm-9:00 pm

3 stops24h 16m

$445

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 3/18

6:00 am-11:51 pm

2 stops14h 51m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Compare providers for flights from Ontario to Wilmington

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Wilmington in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Wilmington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Wilmington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Wilmington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Wilmington flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Wilmington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Wilmington

Have a flexible travel schedule? Discover the best time to fly to Wilmington from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Wilmington

Get recent, data-driven insights about flights from Ontario to Wilmington including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Wilmington?

Currently, January is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $296). Flying from Ontario to Wilmington in March is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to ILM?

Find hourly flight availability from Ontario to Wilmington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 8, 2025.

It’s optimal to fly from Ontario to Wilmington at noon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the morning.

Rainfall in Wilmington by month

Plan your trip to Wilmington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Wilmington ranges from 2.8 - 7.8 inches per month. September is typically the wettest month, when rainfall can reach 7.8 in. April is typically the driest time to visit Wilmington when rainfall is around 2.8 in.

Temperature in Wilmington by month

Plan your trip to Wilmington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Wilmington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Wilmington

Get insights into the airlines that provide service to Wilmington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wilmington. Reviews last updated March 8, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and United Airlines from Ontario to Wilmington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,716 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,716 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,024 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,649 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Wilmington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Ontario to Wilmington round-trip?

    Flying on American Airlines is currently your cheapest option to Wilmington, with prices starting at $389. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $524 and $629, respectively. You may be able to fly from Ontario to Wilmington for 27% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Ontario to Wilmington one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $350. Alaska Airlines flights start at $445 while deals on United Airlines start at $450 one-way.

  • Can I find deals for flights from Ontario to Wilmington that include hotel bookings?

    Yes. In addition to deals on Ontario to Wilmington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Wilmington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Wilmington.

  • Can I find deals for business class flights from Ontario to Wilmington?

    Yes. Cheapflights offers flight deals from Ontario to Wilmington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Wilmington?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $296). Flying from Ontario to Wilmington in March is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Carolina Beach
Southport
Kure Beach
Wrightsville Beach

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Wilmington

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Raleigh flights
San Francisco to Raleigh flights
Los Angeles to Charlotte flights
San Francisco to Charlotte flights
Ontario to Charlotte flights
Ontario to Raleigh flights
San Diego to Raleigh flights
Santa Ana to Charlotte flights
San Diego to Charlotte flights
Burbank to Charlotte flights
Las Vegas to Charlotte flights
Los Angeles to Norfolk flights
Santa Ana to Raleigh flights
Las Vegas to Raleigh flights
Los Angeles to Knoxville flights
Los Angeles to Asheville flights
San Francisco to Asheville flights
San Francisco to Norfolk flights
San Francisco to Knoxville flights
Ontario to Knoxville flights
Los Angeles to Greensboro flights
San Francisco to Greensboro flights
Sacramento to Charlotte flights
Santa Ana to Knoxville flights
Burbank to Raleigh flights
San Diego to Knoxville flights
San Francisco to Myrtle Beach flights
San Diego to Norfolk flights
Oakland to Charlotte flights
San Jose to Raleigh flights
Oakland to Raleigh flights
Los Angeles to Myrtle Beach flights
Las Vegas to Greensboro flights
San Jose to Charlotte flights
Sacramento to Knoxville flights
San Jose to Knoxville flights
Ontario to Asheville flights
San Diego to Wilmington flights
San Diego to Asheville flights
Fresno to Raleigh flights
Ontario to Greensboro flights
Sacramento to Raleigh flights
Ontario to Norfolk flights
Las Vegas to Wilmington flights
Los Angeles to Wilmington flights
Long Beach to Charlotte flights
Las Vegas to Norfolk flights
Burbank to Knoxville flights
Burbank to Asheville flights
Las Vegas to Knoxville flights

Top 2 airlines flying from Ontario to Wilmington

Discover the top 2 airlines that operate flights from Ontario to Wilmington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$448FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$333Average$509FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.