Absolutely, go with the flow, u will be surprised how quickly they adapt, we have been travelling back and forth between UK and Estonia since LO was 2.5 month, flight time is 3 hours and time of flights is just ridiculous time in am, plus the two hours time difference.... Yes it takes a day or two to get back on track, the hardest part for me was to lodge him around at the airport in the sling tbh, he is a heavy boy and i traveled on my own. In terms of sleep as long as he slept at some point thats all that mattered really. We had to get him up at 4.30am, goodness he didnt want to get up at all, got dressed etc, then slept a bit in te car on the way to the airport, nappy change and BF at the airport and off we went.
We dont really use a dummy but i do take one on a dummy clip when we fly so he can suck on something.
Have fun!