Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Antigua as you normally would.
To save up to 4% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to Antigua from $805 1-2 weeks out and tickets from $805 for flights departing within the next 72 hours.
The best pricing can be found in the month of September. Prices to Antigua from Illinois average $784. You can even find prices in September for less than $784, as users have found deals to Antigua from as low as $619. The month of December appears to be one of the more expensive times to travel to Antigua from Illinois. Flying in the targeted month can save you up to 31%.