Find a great deal and save up to 101% by booking at least 44 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Portland, Maine to Chicago Greater Rockford Airport within the next two weeks, with the cheapest ticket starting at $303.
Flights from Portland, Maine to Chicago Greater Rockford Airport lean towards being more expensive in April. Prices are generally better when you fly from Portland, Maine to Chicago Greater Rockford Airport in September, with the cheapest ticket starting at $158.
When flying from Portland, Maine to Chicago Greater Rockford Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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