American AirlinesDepart19:01
Tue, Nov 24CMI → SAN
6h 18m · 1 stop
$371one way, per person
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- Cheapest fare
- $371
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 6h 18m
American Airlines · Tue, Nov 24
from $371
Usually 1+ stop
2,700 km
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Cheapest month to fly from Champaign to San Diego
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
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About flights from Champaign to San Diego
Champaign (CMI) and San Diego (SAN) are about 2,700 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 6h 18m. Over the next few months, one-way fares start from $371, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Champaign to San Diego?
The cheapest one-way fare we've seen recently is $371 with American Airlines, departing Tuesday, November 24, 2026.
What is the cheapest month to fly from Champaign to San Diego?
November 2026 currently has the lowest fares, from $371 one way.
Are there direct flights from Champaign to San Diego?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Champaign to San Diego?
The quickest journey we've seen takes about 6h 18m. Champaign and San Diego are around 2,700 km apart.
Which airlines fly from Champaign to San Diego?
Recent fares on this route were with American Airlines.
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