$375 Find Cheap Flights from San Antonio to Champaign - Compare and Save

Only Economy Class is available on flights from San Antonio to Champaign.

There are currently no nonstop flights available from San Antonio to Champaign. Flights with 1 layover take between 4h 16m and 5h 06m in total, depending on the connection.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from San Antonio to Champaign range from $530 to $596, with an average of $530 over the past 12 months. Anything below $530 counts as a good deal.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $375 to $523. That means the highest observed fare was about 39% higher than the lowest one.

Champaign University-Willard Airport (CMI) hosts 5 major car rental companies, with daily rates starting from around $33 for economy cars. Top options include:

• Budget
• Enterprise Rent-A-Car
• Alamo
• Avis
• National

Flights from San Antonio to Champaign usually depart from San Antonio (SAT) and arrive at Champaign University-Willard (CMI).

Connecting flights from San Antonio to Champaign most commonly pass through:

• Dallas/Fort Worth (DFW) - 50% of one-stop connections
• Chicago O'Hare Intl (ORD) - 50% of one-stop connections

Yes. Flexible dates can save you up to 57% on flights from San Antonio to Champaign. Tuesday is the cheapest departure day at $352 round-trip on average, while Wednesday is the most expensive at $812, a difference of $460.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 4h 16m, compared with 5h 06m via Chicago O'Hare Intl (ORD).