When flying from San Antonio to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
To save on the cost of your flight from San Antonio to Illinois, book at least 24 days before your planned departure. Booking around this time can save you about 42% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $331 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $449.
Flights from San Antonio to Illinois lean towards being more expensive in December. Prices are generally better when you fly from San Antonio to Illinois in August, with the cheapest ticket starting at $129.
||$99||$272||No cancel fee||62%|
||$117||$304||No cancel fee||69%|
||$120||$365||No cancel fee||N/A|
||$126||$374||No cancel fee||71%|