We went on a road trip to Moskow from Vladivostok (a city in Russia). We had some stops to sleep, rest, or enjoy the scenery on the way to Moscow but we had to come back without any stop except for filling up the tank.
Can I use nonstop for the italic part above? I feel nonstop implies a repetitive action like we keep coming back from our trip which doesn't make sense. Am I right?
Informal words or phrases are also welcome. Plus if there is a word or phrase that shows disapproval or humor that is it's not normal to do so please mention that, too.
[Edit: Thanks to JavaLatte's comment, I changed the spelling of "non stop" to "nonstop"]