Cheap Flights from Chicago to Ulaanbaatar — $589

The route Chicago — Ulaanbaatar is served by a single airline — Alaska Airlines. This means that when planning your trip, you won’t need to spend time choosing between dozens of carriers: all flights are operated by one provider, which simplifies the booking process. Despite the limited choice, passengers can still plan ahead, select optimal departure dates, and buy tickets at the lowest price — from $589. Using our service, you can quickly compare available Alaska Airlines flights and book a seat in advance at a favorable rate.

Chicago is served by two main airports with different roles. O'Hare International (ORD) is a major global hub for both legacy and international carriers, typically offering the widest route network and more premium services; it sits about 17 miles northwest of downtown and usually takes 30–60 minutes to reach by car depending on traffic. Transit options include the CTA Blue Line train (about 45–60 minutes, low single-digit fares) and taxis or rideshares (30–60 minutes, fares vary). Midway Airport (MDW) functions mainly as a domestic/budget-focused airport with many low-cost and regional flights; it lies roughly 10 miles southwest of the Loop, commonly 20–40 minutes by car. Midway connects to the city via the CTA Orange Line (about 25–35 minutes, low single-digit fares) and taxis/rideshares. O'Hare’s pros are broad international connections and more airline amenities, while cons can be longer transfers and busier terminals; Midway’s pros include shorter ground times and simpler layouts, with cons being fewer international options and sometimes higher prices on core domestic routes.

Ulaanbaatar is served mainly by Chinggis Khaan International Airport (ULN), the country’s international gateway and largest airport, while the older Buyant-Ukhaa handles some domestic and charter flights. ULN typically hosts full-service international carriers as well as regional and low-cost operators, and fares can be higher than in nearby Asian markets due to limited competition. The airport sits about 45–50 km south of the city center; transfer options include taxis (roughly 45–60 minutes, fares around USD 15–30), airport shuttles and private transfers, with occasional public bus connections taking longer. Pros: modern facilities and customs efficiency; cons: distance from central Ulaanbaatar and seasonal weather delays can affect comfort and timing.