$293 Find Cheap Flights from Illinois to Portugal

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonJanuary
Cheapest flight$293
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Chicago to Porto

Everything you need to know for your flight to Portugal

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Portugal
Business Class flights to Portugalfrom $2,674
Premium Economy Class flights to Portugalfrom $4,394
Economy Class flights to Portugalfrom $464