What’s the cost of a flight from Chicago O'Hare to Porto?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Chicago and Porto.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports serve Chicago and Porto?

When planning a trip of about 6332 km, it's a good idea to check flights from surrounding airports too.

• Airports in Chicago: Chicago is connected to 3 airports - Midway, O'Hare, Rockford.
• Airports in Porto: The only active airport in Porto is Porto.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Refine your flight search from Chicago O'Hare to Porto

With Jetcost, it’s easy to narrow down results to find flights that match your schedule and preferences. You can filter by airline, price, trip type, and more — including offers from the best airlines and travel agencies.

Other popular destinations

Also looking at Portugal? These cities are trending: Faro, Funchal, Lisbon, Ponta Delgada, Porto.

Online agencies can show different offers for the same flight — it’s worth comparing. Filters let you narrow things down further, like selecting a specific time slot to find flights that suit you best.