Looking on the internet deeply has found these results:

welcome on board is the most popular phrase on the web.

welcome on the board 12,460,000 results on the web	welcome on board 12,900,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Ladies and gentleman, welcome on board this Great British Air flight 287 to Barcelona. I want her to feel at ease and welcome on board the Enterprise. Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50, if you would fasten your seatbelts, we'll be leaving any moment. Dr Jackson, welcome on board the Prometheus. Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50. And I'd like to welcome you on board the greatest fighting ship in American naval history. I regret to welcome you on board the already long queue of complaints regarding some of these issues. Welcome on board, Mr. Dallas.	Welcome on board, Mr. Dallas. Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50. Welcome on board, Mr. Thevenet. This is your captain Welcome on board Instant Hell Airline Cmdr Data, welcome on board. Ladies and gentleman, welcome on board this Great British Air flight 287 to Barcelona. Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50, if you would fasten your seatbelts, we'll be leaving any moment. Dr Jackson, welcome on board the Prometheus.

welcome on the board

12,460,000 results on the web

welcome on board

12,900,000 results on the web

More popular!

Ladies and gentleman, welcome on board this Great British Air flight 287 to Barcelona.
I want her to feel at ease and welcome on board the Enterprise.
Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50, if you would fasten your seatbelts, we'll be leaving any moment.
Dr Jackson, welcome on board the Prometheus.
Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50.
And I'd like to welcome you on board the greatest fighting ship in American naval history.
I regret to welcome you on board the already long queue of complaints regarding some of these issues.
Welcome on board, Mr. Dallas.

Welcome on board, Mr. Dallas.
Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50.
Welcome on board, Mr. Thevenet.
This is your captain Welcome on board Instant Hell Airline
Cmdr Data, welcome on board.
Ladies and gentleman, welcome on board this Great British Air flight 287 to Barcelona.
Ladies and gentlemen and variations thereupon, welcome on board the Crusader 50, if you would fasten your seatbelts, we'll be leaving any moment.
Dr Jackson, welcome on board the Prometheus.