$521 Cheap KLM flights Chicago (ORD) to Belgrade (BEG)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap KLM round-trip flights from $872 from ORD to BEG. Affordable one-way fares from $521 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

KLM flights to Belgrade are usually cheaper in the off-peak months of February and January. Whether you’re after a return or one-way ticket, you could score a better deal then.

To find affordable flights from ORD to BEG with KLM, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Enter your dates, click search and use the “Nonstop” filter on Expedia to browse any direct flights from ORD to BEG with KLM or another airline.

Sort your results by “Early Morning” and “Morning” to browse the earliest flights from ORD to BEG. Heading off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Take a KLM flight from O’Hare Intl. Airport (ORD) to Belgrade, and you’ll probably touch down at Nikola Tesla Airport (BEG). This is the airline’s primary hub in this city.

Fly from ORD to BEG with KLM and enjoy a range of benefits including a 4-star airline rating. When booking through Expedia as a KLM Flying Blue and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that. For further details about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your itinerary without additional costs, tick the “Changes included” and “No cancel fee” filters when organizing your next break.