The best pricing can be found in the month of August. Prices to New Haven from Illinois average $168. You can even find prices in August for less than $168, as users have found deals to New Haven from as low as $58. The month of December appears to be one of the more expensive times to travel to New Haven from Illinois. Flying in the targeted month can save you up to 30%.
When flying from Illinois to New Haven, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.