To save up to 76% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago-O'Hare Intl to Southampton from $602 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 March. Prices to Southampton from Chicago-O'Hare Intl average $453. You can even find prices in March for less than $453, as users have found deals to Southampton from as low as $327. The month of December appears to be one of the more expensive times to travel to Southampton from Chicago-O'Hare Intl. Flying in the targeted month can save you up to 39%.
A simple way to save on the total cost of your ticket is to fly from Chicago-O'Hare Intl to Southampton in the afternoon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.