Flight Time from Chicago (ORD) to Lisbon (LIS)

Airlines planning the ORD → LIS leg start from the same arithmetic this page uses: 6,422 km ÷ 850 km/h, then the 40-minute airport allowance. Model it before booking: one stop ≈ 11.2 h total, two stops ≈ 15.2 h, per the slider above.

This 6,422 km length is the sweet spot where non-stops dominate schedules but one-stop fares are often dramatically cheaper. Factor the 6-hour shift into recovery plans: eastbound arrivals at Lisbon generally bite harder than westbound ones.

If fares into LIS spike, the airports tabulated below are the first places to check; each row shows the distance back to Lisbon and the flight time from Chicago. From ORD, reaching OPO instead takes about 1 h — less airborne time than the 8.22 h non-stop, and the surface leg into Lisbon still has to be won back.

Companion flight-time pages exist for 3 of these alternatives (OPO first among them) — see Related calculators. Weigh each alternative against its back-distance to Lisbon — from ORD, a cheap fare hundreds of km from your actual destination is rarely cheap once the surface leg is priced.

Put a departure hour on the math: wheels-up at 10:00 from ORD puts you on the ground at LIS around 00:13 local time, once the 6-hour gain is applied. Daily spend shifts at landing: $136 in Lisbon against $230 at home in Chicago, using the dataset's mid-range figures.

On those numbers Lisbon is the cheaper place to linger — the gap is $94 per day, which over a week funds a second flight. With 6 hours gained eastbound, the 6,422 km out to Lisbon ends in a serious jet-lag bill — plan a quiet first day.