Looking on the internet deeply has found these results:

I am coming by train is the most popular phrase on the web.

I am coming on train 10 results on the web	I am coming by train 138 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Re: German train strike and how affects the VT euro meet in Aachen. by croisbeauty Online Now May 18, 2015 at 3:19 PM. I am coming by train: I am coming by train and would like to be collected from Worthing station at 8.30 am. I don't need collecting and will make my own way to you. Agree to terms * Q I am coming by train or bus from a different direction to that advertised in the programme, what time must I get there by? A This is OK but it is essential that�... Is there any facility of "Visa on arrival" at Padang Besar (on Thai side) if I am coming by train from Malaysia? I know it is possible if we cross the border by bus, �...

I am coming on train

10 results on the web

I am coming by train

138 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Re: German train strike and how affects the VT euro meet in Aachen. by croisbeauty Online Now May 18, 2015 at 3:19 PM. I am coming by train:
I am coming by train and would like to be collected from Worthing station at 8.30 am. I don't need collecting and will make my own way to you. Agree to terms *
Q
I am coming by train or bus from a different direction to that advertised in the programme, what time must I get there by? A
This is OK but it is essential that�...
Is there any facility of "Visa on arrival" at Padang Besar (on Thai side) if I am coming by train from Malaysia? I know it is possible if we cross the border by bus, �...