Cheap flights from Chicago (CHI) to Porto (OPO) from $304

Users have found that flying from Chicago to Porto on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

To save on the cost of your flight from Chicago to Porto, book at least 15 days before your planned departure. Booking around this time can save you about 10% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $678 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $791.

Our data shows that February tends to be the cheapest month to fly to Porto from Chicago. Users have commonly found prices around $775 for the month, but tickets can be as low as $267. Due to multiple factors, prepare for potentially higher prices in June.

A simple way to save on the total cost of your ticket is to fly from Chicago to Porto in the afternoon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the evening.

Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Chicago to Porto. 9 airlines have flights to Porto from Chicago on a regular basis. Booking flights from Chicago to Porto should not be difficult; the airport handles an average of 0 inbound flights from Chicago per day.

Yes, there are multiple flights from Chicago to Porto for under $500. The cheapest flight booked recently is on Iberia for just $494, but on average you can expect to pay $517.

Iberia, at $494, was found to be the cheapest airline from Chicago to Porto.Alternate airlines to your destination round-trip include Delta and British Airways. Iberia is 36% cheaper than the average price of flights available within the next 90 days to this destination.

When booking a flight from Chicago to Porto, you may want to consider flying on American Airlines, British Airways or Delta as they are the most popular for this route.

ORD and OPO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ORD to OPO refers to a flight route from Chicago O'Hare Intl Airport to Porto Airport. Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are other airports near this flight route and their unique identifiers/IATA codes.

Cheapflights helps you search for flights from Chicago to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Porto for you. Better yet — we are completely free to use.

Yes, we can. To see specific flights from Chicago to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Yes, and it’s super simple to set up. Perform a flight search above and use a valid email address to enable the Price Alert feature. That’s it!