ORD → LIS

Find and Compare the Cheapest Ways to Fly from Chicago to Lisbon

Compare one-way, round-trip and flight + hotel packages from Chicago to Lisbon, a nonstop flight of about 8h 35m, with fares from around 480.

Chicago to Lisbon flight facts

Chicago to Lisbon is an international route covering about 3,997 miles, arriving at Humberto Delgado Airport (LIS) in Portugal. Peak travel season in Lisbon runs June–August (hot, dry and sunny), while November–March is usually the quietest and best-value time to visit. The cheapest fares we've tracked on this route include at least one stop.

Key facts for flights from Chicago to Lisbon
Departing fromO'Hare International Airport (ORD)
Arriving atHumberto Delgado Airport (LIS)
Distance3,997 miles (6,436 km)
Nonstop flight timeAbout 8h 35m
Nonstop airlines seenNone in recent fares, expect 1 stop
Round-trip fares from$480 (estimate)
Cheapest monthsMay, September, February
Peak season in LisbonJune–August
Cheapest hotel months in LisbonNovember–March
Best time to book2 to 6 months ahead
Route info updatedOctober 16, 2026

When to visit Lisbon

  • Peak season

    June–August

    Hot, dry and sunny

  • Shoulder season

    April–May & September–October

    Warm and pleasant

  • Off-peak season

    November–March

    Cool and occasionally rainy

Estimated round-trip fares by month, Chicago to Lisbon

Estimated lowest round-trip fare per month
MonthFares from
January$520
February$490
March$510
April$520
May$480
June$675
July$720
August$690
September$480
October$550
November$580
December$640

Flying from Chicago to Lisbon

Airlines Flying this Route

The cheapest fares we've tracked on this route include at least one stop. Ducoffs.com compares full-service and low-cost airlines flying between Chicago and Lisbon in a single search, including nonstop and one-stop options, so you can weigh price against total travel time.

Best Time to Book Flights from Chicago to Lisbon

Fares on this route tend to be lowest in May, September, and February. For the best selection, book about 2 to 6 months before departure and stay flexible by a day or two.

Average Travel Duration

Chicago and Lisbon are about 3,997 miles apart. A nonstop flight takes roughly 8h 35m; connecting itineraries usually add 2 to 5 hours.

Chicago to Lisbon flight questions

How can I find the absolute cheapest flight from Chicago to Lisbon?

The best way to secure budget rates is by comparing multiple airlines simultaneously and checking flexible dates. Ducoffs.com scans available partner networks to bring you real-time pricing options.

What is the cheapest month to fly from Chicago to Lisbon?

Based on typical seasonal demand, May, September, and February tend to offer the lowest fares on this route, with estimated round-trip prices starting around $480. Live prices change daily, so run a search for your exact dates.

How long is the flight from Chicago to Lisbon?

Chicago and Lisbon are about 3,997 miles apart. A nonstop flight takes roughly 8h 35m, while connecting itineraries usually add 2 to 5 hours depending on the layover.

Which airlines fly nonstop from Chicago to Lisbon?

The cheapest fares we've tracked recently on this route include at least one stop. Your live search shows any nonstop options available for your dates.

When are hotels cheapest in Lisbon?

Hotel rates in Lisbon are usually lowest in November–March, when demand is quieter, and highest during peak season (June–August). Booking your flight and hotel together can save up to 30%.

Which airport do I fly into for Lisbon?

This route arrives at Humberto Delgado Airport (LIS). Your search results also show nearby airports when they offer a cheaper or faster option.

How far in advance should I book a flight to Lisbon?

For this route, booking about 2 to 6 months before departure usually gives the best balance of price and seat selection. Mid-week departures are often cheaper than weekend flights.

Is it cheaper to bundle flights and hotels together?

Yes. Bundling your travel components can save you up to 30% compared to booking flights and hotels separately, as airlines and properties offer exclusive package discounts.