Hello!

What’s the difference between „are you going to travel England“, „will you travel England“ and „are you travelling England“??

I think people ask with „are you going to travel“ and „will you travel“ about the plan of someone and „will“ is about the decision at the moment of speaking.. Then when I ask someone „will you travel“, should the counterpartner decide to travel at the moment of speaking..? 😂

Feel free to provide some sample sentences!

See a translation

part one of your question: none of those are correct.
are you going TO TRAVEL TO england? or: are you GOING TO GO to England? (better)
will you travel to england? sounds strange.
better to say: are you going to go to england.

for me... I would never say :are you going to TRAVEL somewhere. it sounds very formal.
better: are you going to GO TO (wherever).

examples:
question: Do you have any TRAVEL coming up?
answer: Yeah -- Next year, we're planning TO GO TO Hawaii
Next year, we're PLANNING A TRIP to Hawaii
Next year, we're TAKING A TRIP TO Hawaii

Boy, you TRAVEL alot!

any of those work better than trying to use the word TRAVEL that say. it just doesn't sound current.