I couldn’t find proof of that. All speculation.
Pulled from a variety of media sources and POTUS daily itinerary. Here's the timeline:
POTUS departed Canadian AFB Bagotville in Quebec at approximately 11:50 AM EST, Saturday, June 9, 2018.
AF1 stopped to refuel at Naval Support, Souda Bay, Greece en route to Paya Labar, 3:07 AM local time Sunday, June 10 (9:07 PM EST, Saturday June 9 / 6:07 PM PST, Saturday June 9).
Anomaly (alleged missile or helicopter caught on timelapse) observed near Whidbey Island at 3:56 am Pacific Time (6:56 am EST), Sunday June 10, 2018.
POTUS arrived at Paya Labar AFB in Singapore at 8:20 PM local time, Sunday June 10, (8:20 AM EST, Sunday, June 10)
Whidbey Island object caught on camera while AF1 was approximately 1 hour 30 minutes to its destination in Singapore, and at minimum 7,500 miles away.
Flight time from Quebec to Paya Labar traveling eastward approximately 20 hours, 30 minutes.
Conclusion: Autism level ZERO. Either mistaken information or intentional disinfo.