The flight from Dublin to Chicago is usually about 8 hours 20–25 minutes for a nonstop service. For a 16:45 departure specifically, the latest direct option shown arrives around 19:00 local Chicago time and takes 8 hours 20 minutes.

Flight time

  • Typical nonstop duration: 8h 25m.
  • A similar schedule shows a 16:40 departure landing at 19:00 in Chicago in 8h 20m.

What 16:45 means

A 16:45 departure is likely in the same ballpark as the 16:40 nonstop listed, so you can expect roughly 8 hours 20 minutes to 8 hours 30 minutes in the air if it’s direct.

Note

If that 16:45 flight has a stop, the total trip can be much longer; one example in the search results shows a 16:45 itinerary with a layover taking 21h 55m.