DC? Megabus.
No
not yet
It is not currently possible to make this trip via megabus because: 1) Bronx does not have a megabus stop. (Manhattan does) 2) Chicago and New York are, as of 2011, considered separate hubs that have no possible connections made via any megabus line or combination of routes.
Megabus travels to almost every city across the USA.
No, it stops in Secaucus
Either the Megabus from Victoria or the train from Paddington
Megabus operates throughout the UK and has recently expanded to the MidWest United States. It is based out of Scotland and offers many low cost travel routes.
The cheapest bus transportation from St. Louis to Washington DC would be taking the MegaBus. Tickets for a MegaBus can start as low as $1.
Megabus has stops through the United Kingdom and Europe. This service has stops and routes originating in Brussels, London, Manchester, Aberdeen, and Blackpool, just to name a few.
Megabus will take you there.
Megabus service is available in Belgium, the Netherlands, France, the United Kingdom, Canada and the United States. This company provides safe, low-cost daily bus service to its passengers.