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$155+ Cheap flights from Wilmington to San Diego (ILM - SAN)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SAN
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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Cheap flight deals from Wilmington to San Diego

Cheapest flights from Wilmington to San Diego
Explore the most affordable flight options available from Wilmington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This American Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 4/151:25 pm
ILM
-
SAN
1 stop8h 35m
American Airlines
Tue 4/2111:01 am
SAN
-
ILM
1 stop8h 52m
American Airlines
Deal found 3/25$309
This Delta deal was found by Cheapflights users on 3/24. 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.
Mon 4/205:50 pm
ILM
-
SAN
1 stop8h 35m
Delta
Sat 4/2510:30 pm
SAN
-
ILM
1 stop8h 04m
Delta
Deal found 3/24$349
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/156:00 am
ILM
-
SAN
2 stops11h 57m
United Airlines
Tue 4/216:15 am
SAN
-
ILM
2 stops14h 29m
United Airlines
Deal found 3/25$364
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/141:25 pm
ILM
-
SAN
1 stop7h 40m
American Airlines
Tue 4/2112:17 pm
SAN
-
ILM
1 stop7h 36m
American Airlines
Deal found 3/25$379
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/146:00 am
ILM
-
SAN
1 stop10h 05m
United Airlines
Tue 4/216:15 am
SAN
-
ILM
2 stops14h 29m
United Airlines
Deal found 3/25$384
This Delta deal was found by Cheapflights users on 3/26. 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 5/2910:26 am
ILM
-
SAN
1 stop9h 04m
Delta
Mon 6/110:25 pm
SAN
-
ILM
1 stop8h 15m
Delta
Deal found 3/26$389
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 6/94:23 pm
ILM
-
SAN
1 stop8h 25m
American Airlines
Tue 6/239:25 pm
SAN
-
ILM
1 stop7h 55m
American Airlines
Deal found 3/25$390
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/164:24 pm
ILM
-
SAN
1 stop7h 26m
American Airlines
Mon 4/209:45 pm
SAN
-
ILM
1 stop9h 01m
American Airlines
Deal found 3/27$419
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 6/44:05 pm
ILM
-
SAN
1 stop9h 29m
United Airlines
Mon 6/89:45 pm
SAN
-
ILM
2 stops11h 27m
United Airlines
Deal found 3/27$424
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/211:25 pm
ILM
-
SAN
1 stop7h 40m
American Airlines
Sun 4/269:45 pm
SAN
-
ILM
1 stop7h 46m
American Airlines
Deal found 3/25$428
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/156:00 am
ILM
-
SAN
2 stops15h 05m
United Airlines
Sat 4/186:15 am
SAN
-
ILM
2 stops14h 29m
United Airlines
Deal found 3/25$429

Find flight deals from Wilmington to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Wilmington (ILM) to San Diego (SAN). 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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(American Airlines)

One-way from

$155
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$511
Provider with most accurate pricing for Wilmington New Hanover County-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Wilmington New Hanover County-San Diego flights.
Search Deals
From Wilmington New Hanover County to San Diego
Search Deals
One-way flight from Wilmington New Hanover County to San Diego
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wilmington to San Diego 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 29, 2026.
Use the filters below to find and compare flights from Wilmington to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Wed 4/15

6:00 am-5:12 pm

2 stops14h 12m

San Diego

Tue 4/21

8:45 am-11:44 pm

2 stops11h 59m

$409
Quickest round-trip

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Tue 5/5

6:00 am-12:43 pm

1 stop9h 43m

San Diego

Sat 5/9

7:00 am-11:44 pm

2 stops13h 44m

$469

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Wed 4/15

6:00 am-1:05 pm

1 stop10h 05m

San Diego

Sat 4/18

6:32 am-11:44 pm

2 stops14h 12m

$494

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Thu 4/16

6:00 am-2:57 pm

2 stops11h 57m

San Diego

Sat 4/18

6:15 am-11:44 pm

2 stops14h 29m

$499

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Fri 5/29

1:03 pm-10:25 pm

2 stops12h 22m

San Diego

Mon 6/1

8:32 pm-12:12 pm

2 stops12h 40m

$528

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Thu 4/23

6:00 am-3:33 pm

2 stops12h 33m

San Diego

Thu 4/30

6:32 am-11:44 pm

2 stops14h 12m

$597
Cheapest one-way
Quickest one-way

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Tue 4/21

1:25 pm-8:09 pm

1 stop9h 44m

$155

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Sun 5/10

8:20 pm-5:59 pm

3 stops48h 39m

$185

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Sat 5/2

6:00 am-8:38 pm

3 stops17h 38m

$220

WilmingtonSan Diego

ILM - SAN

ILMSAN

Wilmington New Hanover County

Fri 5/15

9:53 pm-8:42 am

3 stops37h 49m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Wilmington to San Diego

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 Wilmington to San Diego in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Wilmington-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Wilmington-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Wilmington-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Wilmington-San Diego 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 Wilmington-San Diego 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 Wilmington to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Wilmington 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 Wilmington to San Diego

How far ahead should I book a flight from Wilmington to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Wilmington to San Diego. Price data was last updated on March 13, 2026.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from Wilmington to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Wilmington to San Diego (average of $223). Flying from Wilmington to San Diego in June is currently the most expensive (average of $308). 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.

How much does it cost to fly round-trip from Wilmington to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated March 29, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Wilmington to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,359 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,359 reviews
Delta
7.9
Good
8,359 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.1
Good
11,521 reviews
Delta
7.9
Good
8,359 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • How long is the flight from Wilmington to San Diego?

    Airlines like United Airlines fly from Wilmington to San Diego in about 14h 12m. The time it takes to get you to your destination can typically vary by up to . There are 2251 mi between Wilmington and San Diego.

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

    According to our current data, American Airlines ($250), and Delta ($296) offers the cheapest pricing from Wilmington to San Diego. American Airlines is currently priced 38% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from Wilmington to San Diego?

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

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

    Yes. Cheapflights offers flight deals from Wilmington to San Diego 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 Wilmington to San Diego?

    Currently, May is the cheapest month in which you can book a flight from Wilmington to San Diego (average of $223). Flying from Wilmington to San Diego in June is currently the most expensive (average of $308). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 2 airlines flying from Wilmington to San Diego

Discover the top 2 airlines that operate flights from Wilmington to San Diego. 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$250Average$399FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$333FlexibilityNo cancel feeOn-timeN/A

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