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Cheap flights from Champaign to San Diego from $414

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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Champaign to San Diego (CMI-SAN)

Cheap round-trip flights

American Airlines Logo
7:12 am - 12:27 pmCMI-SAN
7h 15m1 stop
American Airlines Logo
11:35 am - 8:57 pmSAN-CMI
7h 22m1 stop
$414American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 28
American Airlines Logo
6:00 am - 3:21 pmCMI-SAN
11h 21m2 stops
American Airlines Logo
6:15 am - 3:19 pmSAN-CMI
7h 04m1 stop
$420American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 28
American Airlines Logo
6:00 am - 3:21 pmCMI-SAN
11h 21m2 stops
American Airlines Logo
6:15 am - 8:57 pmSAN-CMI
12h 42m2 stops
$425American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 28
American Airlines Logo
6:13 am - 10:50 amCMI-SAN
6h 37m1 stop
American Airlines Logo
1:23 pm - 9:28 pmSAN-CMI
6h 05m1 stop
$452American Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
6:13 am - 3:16 pmCMI-SAN
11h 03m2 stops
American Airlines Logo
1:23 pm - 9:28 pmSAN-CMI
6h 05m1 stop
$458American Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
6:02 am - 12:45 pmCMI-SAN
8h 43m1 stop
American Airlines Logo
6:15 am - 2:45 pmSAN-CMI
6h 30m1 stop
$486American Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
6:02 am - 3:16 pmCMI-SAN
11h 14m2 stops
American Airlines Logo
6:15 am - 2:45 pmSAN-CMI
6h 30m1 stop
$492American Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
11:21 am - 6:25 pmCMI-SAN
9h 04m2 stops
American Airlines Logo
8:30 am - 8:32 pmSAN-CMI
10h 02m2 stops
$497American Airlines
Find Deal
Wed, Dec 3 - Fri, Jan 9
American Airlines Logo
6:00 am - 12:03 pmCMI-SAN
8h 03m1 stop
American Airlines Logo
6:15 am - 2:59 pmSAN-CMI
6h 44m1 stop
$534American Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 16
American Airlines Logo
7:12 am - 3:21 pmCMI-SAN
10h 09m2 stops
American Airlines Logo
6:15 am - 2:59 pmSAN-CMI
6h 44m1 stop
$540American Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 16

American Airlines flights from Champaign to San Diego

Our best American Airlines deals on Champaign to San Diego flight tickets
American Airlines
Oct 1
CMI7:12 amChampaign University-Willard
7h 15m
1 stop
SAN12:27 pmSan Diego
Oct 28
SAN11:35 amSan Diego
7h 22m
1 stop
CMI8:57 pmChampaign University-Willard
$414
Find similar
American Airlines
Oct 1
CMI6:00 amChampaign University-Willard
11h 21m
2 stops
SAN3:21 pmSan Diego
Oct 28
SAN6:15 amSan Diego
7h 04m
1 stop
CMI3:19 pmChampaign University-Willard
$420
Find similar
American Airlines
Oct 1
CMI6:00 amChampaign University-Willard
11h 21m
2 stops
SAN3:21 pmSan Diego
Oct 28
SAN6:15 amSan Diego
12h 42m
2 stops
CMI8:57 pmChampaign University-Willard
$425
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 August 28, 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

Wed 10/1

7:12 am-12:27 pm

1 stop7h 15m

San Diego

Tue 10/28

11:35 am-8:57 pm

1 stop7h 22m

$414

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 10/1

6:00 am-3:21 pm

2 stops11h 21m

San Diego

Tue 10/28

6:15 am-3:19 pm

1 stop7h 04m

$420

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 10/1

6:00 am-3:21 pm

2 stops11h 21m

San Diego

Tue 10/28

6:15 am-8:57 pm

2 stops12h 42m

$425

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 11/19

6:13 am-10:50 am

1 stop6h 37m

San Diego

Sun 11/23

1:23 pm-9:28 pm

1 stop6h 05m

$452

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 11/19

6:13 am-3:16 pm

2 stops11h 03m

San Diego

Sun 11/23

1:23 pm-9:28 pm

1 stop6h 05m

$458

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 11/19

6:02 am-12:45 pm

1 stop8h 43m

San Diego

Sun 11/23

6:15 am-2:45 pm

1 stop6h 30m

$486

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 11/19

6:02 am-3:16 pm

2 stops11h 14m

San Diego

Sun 11/23

6:15 am-2:45 pm

1 stop6h 30m

$492

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Wed 12/3

11:21 am-6:25 pm

2 stops9h 04m

San Diego

Fri 1/9

8:30 am-8:32 pm

2 stops10h 02m

$497

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Fri 9/12

6:00 am-12:03 pm

1 stop8h 03m

San Diego

Tue 9/16

6:15 am-2:59 pm

1 stop6h 44m

$534

ChampaignSan Diego

CMI - SAN

CMISAN

Champaign University-Willard

Fri 9/12

7:12 am-3:21 pm

2 stops10h 09m

San Diego

Tue 9/16

6:15 am-2:59 pm

1 stop6h 44m

$540

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 month to fly to San Diego?

If you are unable to visit San Diego during the month of February, then departing from Champaign during the month September is also very affordable. Most momondo users find prices during this month for around $308.

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

Direct flights

None
There are no direct flights from Champaign to San Diego. There are no popular flight routes from Champaign to San Diego.
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  • 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 6h 37m 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 $268Free CancellationRating
7.2
10,000 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
La Mesa
National City
Imperial Beach
Poway
San Ysidro
Borrego Springs
Alpine
Lemon Grove
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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