I totally get the frustration with flight connections! It can be such a hassle trying to find the best options. Besides Frankfurt and Vienna, consider checking options through Munich as well; it’s another hub with good connections. If you’re looking for fewer layovers or smoother flights, maybe look into those airlines' direct offerings, even if they might be a bit pricier. Have you had any bad experiences with airlines in the past that you want to avoid this time? That might help narrow down your choices.For a trip from Chicago to Ljubljana, you might find great connections through cities like Frankfurt or Vienna. Both offer multiple daily flights and tend to have shorter layover times. Lufthansa and Austrian Airlines are known for their reliable service on these routes. Have you considered how long you’d like your layover to be? Some travelers enjoy a longer stop to explore the layover city a bit!