Find a great deal and save up to 32% by booking at least 61 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 Southampton to Illinois within the next two weeks, with the cheapest ticket starting at £389.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, October can be a great choice for travel to Illinois. Flights to Illinois from Southampton in October are about £364 on average during October, but can be found for as low as £255.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Southampton and Illinois for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.