Chicago to Porto Flights
Flights from Chicago (CHI) to Porto (OPO) connect United States and Portugal. The great-circle distance is approximately 6,332 km, and a typical direct flight takes about 9 hours. Airports commonly used for this city pair include CHI, ORD, MDW and OPO. The reverse route is Porto to Chicago. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- Chicago, United States
- Destination
- Porto, Portugal
- Distance
- 6,332 km
- Typical duration
- about 9 hours
- Origin codes
- CHI, ORD, MDW
- Destination codes
- OPO
- Primary keyword
- flights from Chicago to Porto
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Route overview
Chicago to Porto is a city-pair air route between United States and Portugal. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are CHI and OPO. Related codes: CHI, ORD, MDW → OPO.
Distance
Approximate flight distance: 6,332 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 9 hours. Connecting itineraries take longer and depend on layover airports.
Airports
Chicago airports and metro codes: CHI, ORD, MDW.
Porto airports and metro codes: OPO.
Alternative routes
Related searches include the reverse route Porto to Chicago, other destinations from Chicago, and other origins into Porto.
Frequently asked questions
How long is the flight from Chicago to Porto?
Direct flights from Chicago to Porto typically take about 9 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Chicago to Porto?
The great-circle distance between Chicago and Porto is approximately 6,332 km. Flown distance can be longer depending on airways.
Which airports serve flights from Chicago to Porto?
Chicago is commonly searched with code CHI (related: CHI, ORD, MDW). Porto is commonly searched with code OPO (related: OPO).
Are there direct flights from Chicago to Porto?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from Porto to Chicago?
The reverse city pair is Porto to Chicago. Distance is the same great-circle measure (6,332 km); block time can differ with winds and schedules.
Which countries does the Chicago to Porto route connect?
This route connects United States (Chicago) with Portugal (Porto).