Cheap Flights from Seoul to Chicago — $425

Seoul is served mainly by two airports with different roles. Incheon International (ICN) is the city’s primary international hub, handling most long-haul and full-service carriers; it’s about 48 km west of downtown and typically takes 45–70 minutes by express train or 60–90 minutes by airport limousine bus, with fares usually higher than local transit. Gimpo (GMP) acts as a domestic and short-haul gateway, favored by budget and regional airlines and located roughly 15 km from central Seoul — travel by metro or bus can be 20–40 minutes for modest fares. ICN offers extensive amenities and quieter transfer options, while Gimpo is more convenient for quick connections and lower local travel times; choose based on carrier and schedule rather than one-size-fits-all cost assumptions.

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Seoul to Chicago

O'Hare International Airport (ORD) is Chicago's primary international hub and a major connecting point for both full-service and low-cost carriers, so fares can range from budget-competitive to premium depending on carrier and routing. Located about 17 miles (27 km) northwest of downtown, O'Hare is typically reachable by CTA Blue Line trains in roughly 45–55 minutes for a low fare, or by car/taxi and rideshare in 30–60 minutes depending on traffic, often at higher cost. The airport offers extensive dining, lounges and multiple terminals, making it convenient for transfers but sometimes busy and spread out, which can mean longer connections and walks between gates. Midway International Airport (MDW) functions primarily as a domestic and low-cost carrier base, often perceived as more budget-friendly than O'Hare for short-haul U.S. flights. It sits about 10 miles (16 km) southwest of the Loop; passengers typically reach downtown by CTA Orange Line in about 25–30 minutes for a modest fare, or by taxi/rideshare in 20–40 minutes depending on traffic. Midway is generally more compact and easier to navigate than O'Hare, offering quicker check-in and shorter transfer times, though it has fewer international connections and can be busier during peak holiday periods.

The route Seoul — Chicago is served by many carriers — 5 in total, including Korean Air, T'way Air, Perimeter Aviation Ltd., VietjetAir, and Westjet. This gives passengers wide opportunities: from finding the lowest fare (from $425) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.