Users have found that booking a flight from Chicago to Portugal at least 61 days early can save you up to 78% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Chicago to Portugal for as little as $1313 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1956 for flights departing within the next 3 days.
The best pricing can be found in the month of February. Prices to Portugal from Chicago average $915. You can even find prices in February for less than $915, as users have found deals to Portugal from as low as $497. The month of August appears to be one of the more expensive times to travel to Portugal from Chicago. Flying in the targeted month can save you up to 41%.