I photographed the Boeing 787 Dreamliner #1 at Boeing Field and a prototype on display at the Pima Air Museum in 2017. Note that the first four planes on this list are consecutive airframes #40690, #40691, #40692 and #40693. I also caught an early one in flight over Boeing Field but cannot make out the numbers for it.
2009 Boeing 787-8 Dreamliner #40690 (Line #1)
Boeing Field 2011
2009 Boeing 787-8 Dreamliner #40691 ZA002
Pima Air Museum 2017
2010 Boeing 787-8 Dreamliner #40692 ZA003
Museum of Flight 2023
2009 Boeing 787-8 Dreamliner #40693
Boeing Field 2022
2016 Boeing 787-9 Dreamliner #34858
Seattle 2024
2014 Boeing 787-8 #35310 (EI-LND)
Paine Field 2013
2016 Boeing 787-8 #35506
Dulles Airport 2026
2014 Boeing 787-9 #37967
Heathrow Airport; London 2019
2015 Boeing 787-9 Dreamliner #37968
Charles de Gaulle Airport 2026
2018 Boeing 787-9 #38893 (#680)
Charles de Gaulle Airport 2026
2018 Boeing 787-9 Dreamliner #38789 (#691)
Charles de Gaulle Airport 2026
2015 Boeing 787-8 Dreamliner #40619
Charles de Gaulle Airport 2026
2017 Boeing 787-9 Dreamliner #43862
Charles de Gaulle Airport 2026
2018 Boeing 787-9 Dreamliner #60627
Boeing Field 2022
2019 Boeing 787-10 #60638
Charles de Gaulle Airport 2026
2020 Boeing 787-9 Dreamliner #64977 (#959)
Charles de Gaulle Airport 2026
Boeing 787-9 Dreamliner #66430
SeaTac Airport 2026
Boeing 787
Boeing Field 2014