Which is correct?

I travel on the underground/subway to work.

I travel in the underground/subway to work.

I'd choose the first option as we say on a bus/tram/street car.


1 Answer 1


You can use by with most forms of transport. You can say you’re going by land, by air, by sea, by car, by train, by ship, and by underground. You can also travel, or be, on a train, on a bus, on a tram and on the underground (note the change of article). You cannot, however, normally travel, or be, on a car.

(In and on, and also by, are not articles, but prepositions.)

  • 1
    NGram says we Brits go on the underground twice as often as by the underground. Or we go by tube. Commented Jan 28, 2012 at 15:47
  • All the above, but under the boardwalk. :-)
    – MetaEd
    Commented Jan 29, 2012 at 0:43

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