$125 Cheap Flights from Wilmington (ILM) to San Diego (SAN)

View $125 flight on Fri, May 30, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Wilmington to San Diego (ILM-SAN)

Prices were available within the past 7 days and start at $125 for one-way flights and $250 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, May 30 - Tue, Jun 3
ILM
Wilmington
SAN
San Diego
$250 Roundtrip, found 4 hours ago
$250
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, May 30 from Wilmington to San Diego, returning Tue, Jun 3, priced at $250 found 4 hours ago
American Airlines
Sat, Aug 16 - Tue, Aug 19
ILM
Wilmington
SAN
San Diego
$251 Roundtrip, found 2 hours ago
$251
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 16 from Wilmington to San Diego, returning Tue, Aug 19, priced at $251 found 2 hours ago
United
Fri, May 30 - Tue, Jun 3
ILM
Wilmington
SAN
San Diego
$254 Roundtrip, found 4 hours ago
$254
Roundtrip
found 4 hours ago
Select United flight, departing Fri, May 30 from Wilmington to San Diego, returning Tue, Jun 3, priced at $254 found 4 hours ago
United
Tue, Jun 10 - Tue, Jun 17
ILM
Wilmington
SAN
San Diego
$255 Roundtrip, found 7 hours ago
$255
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Jun 10 from Wilmington to San Diego, returning Tue, Jun 17, priced at $255 found 7 hours ago
American Airlines
Sat, Jun 7 - Tue, Jun 17
ILM
Wilmington
SAN
San Diego
$256 Roundtrip, found 17 hours ago
$256
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Sat, Jun 7 from Wilmington to San Diego, returning Tue, Jun 17, priced at $256 found 17 hours ago
United
Fri, May 30 - Tue, Jun 3
ILM
Wilmington
SAN
San Diego
$259 Roundtrip, found 4 hours ago
$259
Roundtrip
found 4 hours ago
Select United flight, departing Fri, May 30 from Wilmington to San Diego, returning Tue, Jun 3, priced at $259 found 4 hours ago
American Airlines
Sat, Aug 16 - Tue, Aug 19
ILM
Wilmington
SAN
San Diego
$260 Roundtrip, found 2 hours ago
$260
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 16 from Wilmington to San Diego, returning Tue, Aug 19, priced at $260 found 2 hours ago
American Airlines
Tue, Aug 5 - Tue, Aug 12
ILM
Wilmington
CLD
Carlsbad
$261 Roundtrip, found 14 hours ago
$261
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Tue, Aug 5 from Wilmington to Carlsbad, returning Tue, Aug 12, priced at $261 found 14 hours ago
JetBlue Airways
Wed, May 14 - Wed, May 28
ILM
Wilmington
SAN
San Diego
$271 Roundtrip, found 6 hours ago
$271
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Wed, May 14 from Wilmington to San Diego, returning Wed, May 28, priced at $271 found 6 hours ago
Delta
Sat, Aug 16 - Tue, Aug 19
ILM
Wilmington
SAN
San Diego
$278 Roundtrip, found 2 hours ago
$278
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 16 from Wilmington to San Diego, returning Tue, Aug 19, priced at $278 found 2 hours ago
Flights from Wilmington (ILM) to San Diego (SAN)
Origin airport
Wilmington Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$249
Distance
2251 mi

Wilmington to San Diego Flights

The cheapest times to fly from Wilmington to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Wilmington to San Diego are during the month of May. You can find some of the cheapest flights from Wilmington to San Diego with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Wilmington to San Diego

Sunday is one of the best days to book for cheap flights from Wilmington to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Wilmington to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Wilmington to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $125 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Wilmington to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Wilmington to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN) cost?
Discover the latest flight deals from ILM to SAN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ILM to SAN?
The cheapest flights from ILM to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ILM to SAN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ILM to SAN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)?
There aren’t any daily nonstop flights from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you’ll be cruising above the clouds in no time at all.
What day of the week has the most flights from ILM to SAN?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)?
Book a flight from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN) last-minute?
Last-minute bookings from ILM to SAN are generally more expensive. To lock in the cheapest rates, start searching for flights well ahead of time. That being said, if you can play around with your travel dates, it’s possible to score a cheap fare right before you leave.
Is it cheaper to book an ILM to SAN flight and hotel package?
You’ll typically save money by booking an ILM to SAN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. Once you’ve selected your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)?
Generally, it’s possible to reschedule or cancel your ILM to SAN flight. However, if it’s been more than 24 hours since booking, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.