CMI - SAN

$417 Find Cheap Flights from Champaign to San Diego

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Champaign to San Diego departing on 6/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Champaign to San Diego, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$372
United Airlines
Thu 6/25Sun 6/28
CMI - SAN • 1 stop
Top airlines
Cheapest • from $372 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Champaign and San Diego. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $467 (round-trip)
Shortest trip • 7h 03m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Champaign to San Diego (CMI-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Champaign to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Champaign to San Diego

Thu, Jun 25 - Sun, Jun 28
United Airlines Logo
9:49 am - 3:25 pm
CMI
-
SAN
7h 36m
1 stop
United Airlines Logo
10:40 pm - 8:54 am
SAN
-
CMI
8h 14m
1 stop
$372United Airlines
Sun, Apr 5 - Thu, Apr 9
American Airlines Logo
3:47 pm - 8:20 pm
CMI
-
SAN
6h 33m
1 stop
American Airlines Logo
11:01 am - 8:39 pm
SAN
-
CMI
7h 38m
1 stop
$417American Airlines
Sun, Apr 5 - Thu, Apr 9
American Airlines Logo
9:52 am - 4:00 pm
CMI
-
SAN
8h 08m
2 stops
American Airlines Logo
11:01 am - 8:39 pm
SAN
-
CMI
7h 38m
1 stop
$423American Airlines
Thu, Jun 25 - Sun, Jun 28
United Airlines Logo
1:32 pm - 7:51 pm
CMI
-
SAN
8h 19m
2 stops
United Airlines Logo
10:40 pm - 8:54 am
SAN
-
CMI
8h 14m
1 stop
$443United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
6:00 am - 11:25 am
CMI
-
SAN
7h 25m
1 stop
United Airlines Logo
2:14 pm - 12:03 am
SAN
-
CMI
7h 49m
1 stop
$458United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
9:49 am - 8:38 pm
CMI
-
SAN
12h 49m
2 stops
United Airlines Logo
10:40 pm - 9:06 am
SAN
-
CMI
8h 26m
1 stop
$464United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
9:49 am - 6:33 pm
CMI
-
SAN
10h 44m
2 stops
United Airlines Logo
6:05 pm - 9:06 am
SAN
-
CMI
13h 01m
2 stops
$469United Airlines
Mon, Jun 8 - Thu, Jun 11
American Airlines Logo
6:44 pm - 11:39 pm
CMI
-
SAN
6h 55m
1 stop
American Airlines Logo
10:57 am - 10:01 pm
SAN
-
CMI
9h 04m
1 stop
$497American Airlines
Sun, Apr 5 - Thu, Apr 9
American Airlines Logo
9:52 am - 4:00 pm
CMI
-
SAN
8h 08m
2 stops
American Airlines Logo
6:30 am - 6:28 pm
SAN
-
CMI
9h 58m
2 stops
$508American Airlines
Fri, Jun 19 - Sun, Jun 28
United Airlines Logo
1:32 pm - 6:30 pm
CMI
-
SAN
6h 58m
1 stop
United Airlines Logo
10:40 pm - 8:54 am
SAN
-
CMI
8h 14m
1 stop
$537United Airlines
Booking Insights

KAYAK's insights & trends for Champaign to San Diego flights

Get data-powered insights and trends into flights from Champaign to San Diego to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Champaign to San Diego?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Champaign to San Diego were found on United Airlines ($372) and American Airlines ($417).

Good to know

Low seasonMay
Cheapest flight$372
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Champaign to San Diego

When to book flights from Champaign to San Diego

Are your dates flexible? Find out the best times to travel from Champaign to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Champaign to San Diego

  • What is the cheapest flight from Champaign to San Diego?

    In the last 3 days, the lowest price for a flight from Champaign to San Diego was $372 for a round-trip ticket.

  • Do I need a passport to fly between Champaign and San Diego?

    A passport is not required to fly from Champaign to San Diego.

  • Which airports will I be using when flying from Champaign to San Diego?

    When flying out of Champaign you will be using Champaign University-Willard. You will be landing at San Diego, also known as San Diego.

  • Which aircraft models fly most regularly from Champaign to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Champaign to San Diego?

    oneworld is the only airline alliance operating flights between Champaign and San Diego.

  • How does KAYAK find such low prices on flights from Champaign to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Champaign to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Champaign to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Champaign is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Champaign to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Champaign with another airline. Booking your flights between Champaign and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Champaign to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Champaign up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Champaign to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Champaign to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Champaign to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11487 reviews
6.9Entertainment
7.2Comfort
6.4Food
7.9Crew
7.5Boarding
Airline reviews

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

10.0 ExcellentFraxys, Feb 2026
DFW - ONT
Read more American Airlines reviews

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything you need to know for your flight from Champaign to San Diego

Information on your arrival and departure airports