Cheap Flights from Champaign, IL to San Diego, CA from $355 - CMI to SAN Tickets & Airfare Deals at Cheapflights.com

How to find the cheapest flight from
Champaign (CMI) to San Diego (SAN)

What is the cheapest day to fly round-trip from Champaign to San Diego?

Saturday flights are found to be more expensive to fly from Champaign to San Diego. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

How far in advance should I book a flight from Champaign to San Diego?

To save on the cost of your flight from Champaign to San Diego, book at least 17 days before your planned departure. Booking around this time can save you about 27% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $73 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $98.

What is the cheapest month to fly from Champaign to San Diego?

Flights from Champaign to San Diego lean towards being more expensive in December. Prices are generally better when you fly from Champaign to San Diego in July, with the cheapest ticket starting at $44.

When is the cheapest time to fly from Champaign to San Diego (CMI - SAN)?

When flying from Champaign to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 8% versus a flight in the morning.

One-way flights to San Diego from Champaign

The cheapest one-way flights from Champaign to San Diego

2:30 am - 8:53 am

American Airlines

1 Stop

8h 23m

CMI - SAN

$478

2:00 am - 1:24 pm

Multiple Airlines

2 Stops

13h 24m

CMI - SAN

$357

Related info for your journey

Useful info, stats and facts about Champaign to San Diego flights.

Flight FAQs

From Champaign to San Diego

Are flight prices decreasing from Champaign to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Champaign and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Champaign University-Willard to San Diego have flexible changes due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines flying from Champaign University-Willard to San Diego have implemented new flexible change policies.

Can I find flights from Champaign to San Diego for under $400 on Cheapflights?

Yes, there are multiple flights from Champaign to San Diego for under $400. The cheapest flight booked recently is on American Airlines for just $355, but on average you can expect to pay $470.

Are there nonstop flights from Champaign to San Diego for under $400 on Cheapflights?

There are no nonstop flights from Champaign to San Diego, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Champaign to San Diego for under $500?

There are currently 2+ open flights from Champaign to San Diego within the next 7 days for less than $500.

How popular is this flight route?

The Champaign University-Willard to San Diego flight path was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Champaign or San Diego?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Champaign is roughly greater than that of San Diego. You can assume this to be the case over the next 12 days.

Is Champaign weather warmer or cooler than San Diego?

Our data indicates that the weather will be 86 °F on average in the month of July. The temperature in San Diego is typically colder than in Champaign. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Champaign to San Diego?

Airlines like American Airlines fly from Champaign to San Diego in about 6h 38m. The time it takes to get you to your destination can typically vary by up to .

What is the cheapest airline to fly from Champaign to San Diego round-trip?

American Airlines, at $355, was found to be the cheapest airline from Champaign to San Diego.. Users have found that American Airlines is 34% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Champaign to San Diego one-way?

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $478.

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Destination information for San Diego

Things to know before you go. Useful info for your trip from Champaign to San Diego

77.0 °F

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Airports servicing Champaign

Champaign (CMI)

Airports servicing San Diego

San Diego (SAN)

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

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How to find the cheapest flight from Champaign (CMI) to San Diego (SAN)