Avanti West Coast
South Western Railway
LNER
Northern
Great Western Railway
Paris to Nice train
Madrid to Barcelona train
Manchester to London train
London to Paris train
RegioJet
BlaBlaCar Bus
Eurolines
National Express
Avanza
London to Berlin coach
Cardiff to Dublin coach
Glasgow to Edinburgh coach
London to Brussels coach
Hamburg to Amsterdam coach
Aer Lingus
KLM
British Airways
Ryanair
easyJet
London to Paris flight
Edinburgh to London flight
London to Gibraltar flight
Valencia to Lisbon flight
Paris to Barcelona flight
Travelmar
SNAV
Fred Olsen Express
Trasmapi
Moby Lines
Holyhead to Dublin ferry
Dover to Calais ferry
Naples to Palermo ferry
Ibiza to Barcelona ferry
Liverpool to Belfast ferry
Here are some other resources that might have the information you need