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Wilmington

$355+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$369
(Delta)

One-way from

$355
(Alaska Airlines)

Popular in

March

Cheapest in

January

Average price

$576
From Ontario to Wilmington New Hanover County
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One-way flight from Ontario to Wilmington New Hanover County
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Highest demand for flights based on searches. 13% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 7/2310:05 pmONT - ILM
1 stop8h 38mDelta
Tue 7/295:51 pmILM - ONT
1 stop7h 36mDelta
Deal found 6/10$369
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 8/710:29 pmONT - ILM
1 stop7h 48mAmerican Airlines
Mon 8/115:00 pmILM - ONT
1 stop8h 48mAmerican Airlines
Deal found 6/9$394
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/121:34 pmONT - ILM
2 stops22h 50mUnited Airlines
Fri 8/154:59 pmILM - ONT
2 stops22h 33mUnited Airlines
Deal found 6/11$576
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/144:00 pmONT - ILM
2 stops15h 50mAlaska Airlines
Fri 8/152:16 pmILM - ONT
2 stops12h 57mAlaska Airlines
Deal found 6/11$704

Cheapflights Fare Finder

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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Wilmington that are best for you.

Fly from

Ontario

Fly to

Wilmington

Route

Depart

Return

Price

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 7/23

10:05 pm-9:43 am

1 stop8h 38m

Wilmington New Hanover County

Wed 7/30

5:51 pm-10:27 pm

1 stop7h 36m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 8/7

10:29 pm-9:17 am

1 stop7h 48m

Wilmington New Hanover County

Mon 8/11

5:00 pm-10:48 pm

1 stop8h 48m

$394

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 8/12

1:34 pm-3:24 pm

2 stops22h 50m

Wilmington New Hanover County

Fri 8/15

4:59 pm-12:32 pm

2 stops22h 33m

$576

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 8/27

6:00 am-8:50 pm

2 stops11h 50m

Wilmington New Hanover County

Sun 8/31

2:16 pm-11:53 pm

2 stops12h 37m

$747

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 8/12

4:00 pm-10:50 am

2 stops15h 50m

$355

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 8/12

6:00 am-3:24 pm

3 stops30h 24m

$413

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 6/19

10:05 pm-9:39 am

1 stop8h 34m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.

Cheapflights Insights

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

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 December is currently the most expensive (average of $385). 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 June 12, 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 June 12, 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
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Delta is currently your cheapest option to Wilmington, with prices starting at $369. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $394 and $576, respectively. You may be able to fly from Ontario to Wilmington for 22% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $355. United Airlines flights start at $413 while deals on Delta start at $470 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 December is currently the most expensive (average of $385). 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
Kure Beach
Southport
Wrightsville Beach

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$413FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$498FlexibilityNo cancel feeOn-time71%

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