Cheap Flights from Chicago to Ulaanbaatar — $463

Fly from Chicago to Ulaanbaatar with confidence — our search scans over 700 airlines, more than 50 travel agencies and 5+ top booking systems to uncover the best prices, times and travel conditions for your Mongolia trip. Compare flexible routings and fare options in seconds and secure the itinerary that fits your schedule and budget.

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.

Fly nonstop from Chicago to Ulaanbaatar for the fastest, most convenient way to reach Mongolia’s capital — less time in transit means more time exploring the city and surrounding steppe. While connecting flights can sometimes be cheaper, a direct option cuts layovers and travel stress, making it ideal if you value comfort and efficiency on long-haul trips.

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.

The Chicago — Ulaanbaatar route is served by a wide range of airlines: 4 in total, including American Airlines, Frontier Airlines, Air Canada, and United Airlines. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $463. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.