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Cheap flights from Champaign to San Diego from $538

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to San Diego departing on 4/9. 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 Champaign to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:44 pm - 11:09 pm
CMI
-
SAN
6h 25m1 stop
American Airlines Logo
2:59 pm - 10:40 pm
SAN
-
CMI
5h 41m1 stop
$538American Airlines
Thu, Apr 9 - Thu, Apr 16
American Airlines Logo
2:54 pm - 10:23 pm
CMI
-
SAN
9h 29m1 stop
American Airlines Logo
6:20 am - 2:24 pm
SAN
-
CMI
6h 04m1 stop
$608American Airlines
Thu, Mar 26 - Sun, Mar 29
American Airlines Logo
3:45 pm - 10:50 pm
CMI
-
SAN
9h 05m1 stop
American Airlines Logo
12:32 pm - 9:17 pm
SAN
-
CMI
6h 45m1 stop
$699American Airlines
Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
6:00 am - 3:03 pm
CMI
-
SAN
11h 03m2 stops
American Airlines Logo
12:32 pm - 9:17 pm
SAN
-
CMI
6h 45m1 stop
$735American Airlines
Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
2:54 pm - 9:39 pm
CMI
-
SAN
8h 45m2 stops
American Airlines Logo
6:20 am - 2:24 pm
SAN
-
CMI
6h 04m1 stop
$748American Airlines
Thu, Mar 26 - Sun, Mar 29
American Airlines Logo
6:44 pm - 11:09 pm
CMI
-
SAN
6h 25m1 stop
American Airlines Logo
6:31 am - 3:45 pm
SAN
-
CMI
7h 14m2 stops
$765American Airlines
Thu, Apr 9 - Thu, Apr 16
American Airlines Logo
11:24 am - 6:35 pm
CMI
-
SAN
9h 11m2 stops
American Airlines Logo
10:09 am - 9:17 pm
SAN
-
CMI
9h 08m2 stops
$891American Airlines
Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
2:54 pm - 9:39 pm
CMI
-
SAN
8h 45m2 stops
American Airlines Logo
9:45 am - 8:58 pm
SAN
-
CMI
9h 13m2 stops
$1,052American Airlines
Thu, Mar 26 - Sun, Mar 29
American Airlines Logo
2:54 pm - 10:23 pm
CMI
-
SAN
9h 29m1 stop
American Airlines Logo
6:20 am - 2:24 pm
SAN
-
CMI
6h 04m1 stop
$1,448American Airlines
Thu, Mar 26 - Sun, Mar 29
American Airlines Logo
2:54 pm - 9:39 pm
CMI
-
SAN
8h 45m2 stops
American Airlines Logo
6:20 am - 2:24 pm
SAN
-
CMI
6h 04m1 stop
$1,625American Airlines
Thu, Mar 26 - Sun, Mar 29

American Airlines flights from Champaign to San Diego

Our best American Airlines deals on Champaign to San Diego flight tickets
American Airlines
Jan 1
CMI11:33 amChampaign University-Willard
10h 26m
1 stop
SAN7:59 pmSan Diego
Jan 24
SAN6:20 amSan Diego
12h 07m
1 stop
CMI8:27 pmChampaign University-Willard
$471
Find similar
American Airlines
Jan 1
CMI6:52 amChampaign University-Willard
10h 32m
2 stops
SAN3:24 pmSan Diego
Jan 24
SAN1:19 pmSan Diego
5h 58m
1 stop
CMI9:17 pmChampaign University-Willard
$488
Find similar
American Airlines
Jan 1
CMI6:52 amChampaign University-Willard
10h 32m
2 stops
SAN3:24 pmSan Diego
Jan 24
SAN6:15 amSan Diego
10h 08m
2 stops
CMI6:23 pmChampaign University-Willard
$493
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Champaign 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 December 22, 2025.
Use the filters below to find and compare flights from Champaign to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 4/9

6:44 pm-11:09 pm

1 stop6h 25m

San Diego

Thu 4/16

2:59 pm-10:40 pm

1 stop5h 41m

$538

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 3/26

2:54 pm-10:23 pm

1 stop9h 29m

San Diego

Sun 3/29

6:20 am-2:24 pm

1 stop6h 04m

$608

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 1/15

3:45 pm-10:50 pm

1 stop9h 05m

San Diego

Mon 1/19

12:32 pm-9:17 pm

1 stop6h 45m

$699

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 1/15

6:00 am-3:03 pm

2 stops11h 03m

San Diego

Mon 1/19

12:32 pm-9:17 pm

1 stop6h 45m

$735

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 3/26

2:54 pm-9:39 pm

2 stops8h 45m

San Diego

Sun 3/29

6:20 am-2:24 pm

1 stop6h 04m

$748

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 4/9

6:44 pm-11:09 pm

1 stop6h 25m

San Diego

Thu 4/16

6:31 am-3:45 pm

2 stops7h 14m

$765

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 1/15

11:24 am-6:35 pm

2 stops9h 11m

San Diego

Mon 1/19

10:09 am-9:17 pm

2 stops9h 08m

$891

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 3/26

2:54 pm-9:39 pm

2 stops8h 45m

San Diego

Sun 3/29

9:45 am-8:58 pm

2 stops9h 13m

$1,052

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 3/26

2:54 pm-10:23 pm

1 stop9h 29m

San Diego

Sun 3/29

6:20 am-2:24 pm

1 stop6h 04m

$1,448

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Thu 3/26

2:54 pm-9:39 pm

2 stops8h 45m

San Diego

Sun 3/29

6:20 am-2:24 pm

1 stop6h 04m

$1,625

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Diego from

How to get the cheapest flight ticket from Champaign 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 day to depart on your flight to San Diego?

The cheapest day to depart from Champaign to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $268. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $639. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $308. Flights in the afternoon are often more expensive with an average ticket price of $539.

When to book flights from Champaign to San Diego

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

Cheap Champaign to San Diego (CMI to SAN) flight deals and tips

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

Fastest flight time

7h 18m

Direct flights

None
The fastest flight from Champaign to San Diego takes 7h 18m
There are no direct flights from Champaign to San Diego. There are no popular flight routes from Champaign to San Diego.
Search flight deals

  • How far is Champaign University-Willard to San Diego by plane?

    There are 1678.1 mi between Champaign University-Willard and San Diego. Typically, this will take 7h 18m by plane in normal conditions.

  • When did momondo last update prices for flights from Champaign University-Willard Airport to San Diego Airport?

    Prices for flights from Champaign University-Willard Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from Champaign University-Willard Airport to San Diego Airport?

  • How old do you have to be to fly from Champaign University-Willard Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Champaign University-Willard Airport to San Diego Airport.

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

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Champaign to San Diego?

Best airlines flying from Champaign to San Diego

Compare and see reviews for airlines that fly from Champaign to San Diego with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $336Free CancellationRating
7.2
11,054 reviews
Search American 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
Poway
National City
Borrego Springs
Imperial Beach
La Mesa
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

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

Finding the right flight to San Diego from Champaign is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to San Diego from Champaign. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Champaign to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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