Cheap Flights from Chicago to Lisbon — $535

You can fly from Chicago to Lisbon with Frontier Airlines. It is the only carrier on this route, which makes the choice straightforward. Despite the lack of competition, ticket prices remain affordable: fares start from $535. Our service helps you track price changes, compare by dates, and select the most suitable flight. If you value stability and predictability, flying with Frontier Airlines is a convenient solution. We make it easy to find good deals and ensure a comfortable booking process.

Fly from Chicago to Lisbon with confidence — our search scans over 700 airlines, 50+ travel agencies and 5+ leading booking systems to uncover the best prices, timetables and ticket conditions for your trip. Compare real options in seconds and lock in the ideal flight for your schedule and budget.

Chicago is served primarily by O'Hare International (ORD) and Midway International (MDW), with ORD acting as the city’s major international hub and Midway catering more to domestic and low-cost carriers. O'Hare typically hosts a wide mix of legacy and global airlines, while Midway is often favored by budget and domestic routes. O'Hare lies about 17 miles northwest of downtown (roughly 30–60 minutes by car depending on traffic) and is linked by the CTA Blue Line train (about 45–55 minutes) and shuttle/taxi services; fares for public transit are modest, while rideshares and taxis can vary. Midway sits around 10 miles southwest of the Loop (roughly 20–40 minutes by car) and connects via the CTA Orange Line (about 25–35 minutes) plus buses and taxis. Pros: O'Hare offers extensive international connections and many amenities; Midway can be quicker for domestic trips and easier to navigate. Cons: O'Hare can be busy with longer transfer times and delays; Midway has fewer long-haul options and can feel cramped during peak periods.

Fly nonstop from Chicago to Lisbon for the fastest, most convenient way to reach Portugal’s sunlit coastal capital — fewer hassles, no layovers, and more time to enjoy the city. While connecting routes can sometimes be cheaper, a direct flight saves hours and delivers a more comfortable, reliable travel experience worth the convenience.

Lisbon Humberto Delgado Airport (LIS) is Portugal’s main international gateway and typically handles a mix of full-service carriers, European low-cost airlines, and intercontinental flights. It sits about 7 km (4–5 miles) northeast of the city centre, making transfers relatively quick: metro rides to central stations take roughly 20–30 minutes (single fares usually in the low-euro range), taxis or rideshares reach downtown in 15–30 minutes depending on traffic and can be costlier. Trains/buses and organized shuttles are also available for budget-minded travellers. Pros: extensive route network, frequent public transport links and amenities; cons: can be busy during peak hours and terminal layouts may require extra time for connections.