$126 Cheap Flights from Wilmington (ILM) to San Diego (SAN)

View $126 flight on Tue, Jan 13, 2026Opens in a new window

Popular airlines from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)

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

Prices were available within the past 7 days and start at $126 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$251 Roundtrip, just found
$251
Roundtrip
just found
Select American Airlines flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $251 just found
United
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$253 Roundtrip, just found
$253
Roundtrip
just found
Select United flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $253 just found
United
Wed, Nov 12 - Sat, Nov 15
ILM
Wilmington
SAN
San Diego
$255 Roundtrip, found 4 days ago
$255
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 12 from Wilmington to San Diego, returning Sat, Nov 15, priced at $255 found 4 days ago
United
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$256 Roundtrip, just found
$256
Roundtrip
just found
Select United flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $256 just found
American Airlines
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$258 Roundtrip, just found
$258
Roundtrip
just found
Select American Airlines flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $258 just found
United
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$258 Roundtrip, just found
$258
Roundtrip
just found
Select United flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $258 just found
American Airlines
Wed, Dec 3 - Tue, Dec 16
ILM
Wilmington
SAN
San Diego
$260 Roundtrip, found 12 hours ago
$260
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Dec 3 from Wilmington to San Diego, returning Tue, Dec 16, priced at $260 found 12 hours ago
United
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$261 Roundtrip, just found
$261
Roundtrip
just found
Select United flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $261 just found
Delta
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$276 Roundtrip, just found
$276
Roundtrip
just found
Select Delta flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $276 just found
Alaska Airlines
Tue, Jan 13 - Wed, Jan 21
ILM
Wilmington
SAN
San Diego
$407 Roundtrip, just found
$407
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Jan 13 from Wilmington to San Diego, returning Wed, Jan 21, priced at $407 just found

Find the cheapest month to fly from Wilmington (ILM) to San Diego (SAN)

May is typically the cheapest month to fly

From $248 - $538 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $426
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $426

Frequently asked questions

How much does a flight from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN) cost?
Get a cheap one-way flight from $126 or cheap return flight from $251 from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)?
The cheapest month to fly from ILM to SAN is January, when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Wilmington Intl. Airport (ILM) to San Diego Intl. Airport (SAN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ILM to SAN flight.
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.

Travel information

Origin airport
Wilmington Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$250
Distance
2251 mi

Book with confidence

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 January. 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 $126 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.

 

Wilmington to San Diego Flights

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*Available to One Key members.