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Cheap flights from Decatur, Illinois to San Diego from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Decatur, Illinois to San Diego departing on 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Decatur, Illinois to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:42 am - 3:33 pm
DEC
-
SAN
7h 51m
1 stop
United Airlines Logo
10:40 pm - 8:58 am
SAN
-
DEC
8h 18m
1 stop
$414United Airlines
qua, mai 13 - dom, mai 17
United Airlines Logo
9:42 am - 8:04 pm
DEC
-
SAN
12h 22m
2 stops
United Airlines Logo
10:40 pm - 8:58 am
SAN
-
DEC
8h 18m
1 stop
$424United Airlines
qua, mai 13 - dom, mai 17
United Airlines Logo
9:42 am - 3:02 pm
DEC
-
SAN
7h 20m
1 stop
United Airlines Logo
10:40 pm - 8:46 am
SAN
-
DEC
8h 06m
1 stop
$444United Airlines
qua, set 2 - dom, set 6
United Airlines Logo
9:42 am - 8:45 pm
DEC
-
SAN
13h 03m
2 stops
United Airlines Logo
6:40 am - 5:51 pm
SAN
-
DEC
9h 11m
1 stop
$450United Airlines
qua, set 2 - dom, set 6
United Airlines Logo
9:42 am - 8:34 pm
DEC
-
SAN
12h 52m
2 stops
United Airlines Logo
6:20 am - 5:51 pm
SAN
-
DEC
9h 31m
2 stops
$459United Airlines
qua, set 2 - dom, set 6
United Airlines Logo
9:37 am - 3:27 pm
DEC
-
SAN
7h 50m
1 stop
United Airlines Logo
6:40 am - 5:56 pm
SAN
-
DEC
9h 16m
1 stop
$464United Airlines
sex, jul 17 - seg, jul 20
United Airlines Logo
9:42 am - 8:45 pm
DEC
-
SAN
13h 03m
2 stops
United Airlines Logo
6:40 am - 5:51 pm
SAN
-
DEC
9h 11m
1 stop
$470United Airlines
qua, set 2 - dom, set 6
United Airlines Logo
9:42 am - 8:03 pm
DEC
-
SAN
12h 21m
2 stops
United Airlines Logo
8:45 pm - 8:58 am
SAN
-
DEC
10h 13m
2 stops
$472United Airlines
qua, mai 13 - dom, mai 17
United Airlines Logo
9:42 am - 7:55 pm
DEC
-
SAN
12h 13m
2 stops
United Airlines Logo
6:20 am - 5:51 pm
SAN
-
DEC
9h 31m
2 stops
$479United Airlines
qua, set 2 - dom, set 6
United Airlines Logo
9:42 am - 8:02 pm
DEC
-
SAN
12h 20m
2 stops
United Airlines Logo
7:00 am - 5:58 pm
SAN
-
DEC
8h 58m
1 stop
$485United Airlines
qui, mai 14 - seg, mai 18

United Airlines flights from Decatur, Illinois to San Diego

Our best United Airlines deals on Decatur, Illinois to San Diego flight tickets
United Airlines
May 13
DEC9:42 amDecatur Arpt
7h 51m
1 stop
SAN3:33 pmSan Diego
May 17
SAN10:40 pmSan Diego
8h 18m
1 stop
DEC8:58 amDecatur Arpt
$414
United Airlines
May 13
DEC9:42 amDecatur Arpt
12h 22m
2 stops
SAN8:04 pmSan Diego
May 17
SAN10:40 pmSan Diego
8h 18m
1 stop
DEC8:58 amDecatur Arpt
$424
United Airlines
Sep 2
DEC9:42 amDecatur Arpt
7h 20m
1 stop
SAN3:02 pmSan Diego
Sep 6
SAN10:40 pmSan Diego
8h 06m
1 stop
DEC8:46 amDecatur Arpt
$444

momondo Fare Finder

 
Customize your flight search to find flights from Decatur, Illinois 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, momondo users made 832,500 searches. Data last updated abril 30, 2026.
Use the filters below to find and compare flights from Decatur, Illinois to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 5/13

9:42 am-3:33 pm

1 stop7h 51m

San Diego

dom 5/17

10:40 pm-8:58 am

1 stop8h 18m

$414

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 5/13

9:42 am-8:04 pm

2 stops12h 22m

San Diego

dom 5/17

10:40 pm-8:58 am

1 stop8h 18m

$424
Quickest round-trip

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 9/2

9:42 am-3:02 pm

1 stop7h 20m

San Diego

dom 9/6

10:40 pm-8:46 am

1 stop8h 06m

$444

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 9/2

9:42 am-8:45 pm

2 stops13h 03m

San Diego

dom 9/6

6:40 am-5:51 pm

1 stop9h 11m

$450

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 9/2

9:42 am-8:34 pm

2 stops12h 52m

San Diego

dom 9/6

6:20 am-5:51 pm

2 stops9h 31m

$459

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

sex 7/17

9:37 am-3:27 pm

1 stop7h 50m

San Diego

seg 7/20

6:40 am-5:56 pm

1 stop9h 16m

$464

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 9/2

9:42 am-8:45 pm

2 stops13h 03m

San Diego

dom 9/6

6:40 am-5:51 pm

1 stop9h 11m

$470

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 5/13

9:42 am-8:03 pm

2 stops12h 21m

San Diego

dom 5/17

8:45 pm-8:58 am

2 stops10h 13m

$472

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qua 9/2

9:42 am-7:55 pm

2 stops12h 13m

San Diego

dom 9/6

6:20 am-5:51 pm

2 stops9h 31m

$479

DecaturSan Diego

DEC - SAN

DECSAN

Decatur Arpt

qui 5/14

9:42 am-8:02 pm

2 stops12h 20m

San Diego

seg 5/18

7:00 am-5:58 pm

1 stop8h 58m

$485

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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How to get the cheapest flight ticket from Decatur, Illinois to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Decatur Arpt to San Diego?

United Airlines is the most popular carrier operating from Decatur Arpt to San Diego

When to book flights from Decatur, Illinois to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Decatur, Illinois to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Decatur, Illinois to San Diego (DEC to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Decatur, Illinois to San Diego

Fastest flight time

7h 20m

Direct flights

None
The fastest flight from Decatur, Illinois to San Diego takes 7h 20m
There are no direct flights from Decatur, Illinois to San Diego. There are no popular flight routes from Decatur, Illinois to San Diego.
Search flight deals

Frequently asked questions about flying from Decatur, Illinois to San Diego

  • How far is Decatur Arpt to San Diego by plane?

    The distance between Decatur Arpt and San Diego is about 1637.2 mi. A reasonable flight in good conditions will take 7h 20m.

  • When did momondo last update prices for flights from Decatur Arpt Airport to San Diego Airport?

    Prices for flights from Decatur Arpt Airport to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Decatur Arpt Airport to San Diego Airport?

  • How old do you have to be to fly from Decatur Arpt Airport to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Decatur Arpt Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Decatur, Illinois to San Diego?

Best airlines flying from Decatur, Illinois to San Diego

Compare and see reviews for airlines that fly from Decatur, Illinois to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Poway
San Ysidro
La Mesa
Imperial Beach
Borrego Springs
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Decatur to San Diego?

It is quick and easy to find Decatur to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Decatur to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Decatur to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from Decatur to San Diego?

Once you have performed a search for Decatur to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Decatur to San Diego right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Diego from Decatur. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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