Me, too - sextile between 9 and 4 rulers, trine between 4 and 1 ruler, opposition between 9 and 1 ruler - and I've lived all over the world, and do not live in the same country either where I was born or where I grew up.
You'll find the occasional exception, but it's a pretty good rule overall.
Normally for travel you find the Almuten of Travel and then look at the aspects.
Jupiter is the Almuten of Travel in my chart. The Lot of Travel (ASC + 9th House Cusp - 9th House Ruler -- assumes Whole Sign or Alcabitius Houses Cusps -- can't guarantee performance for non-conformist House Systems) is in the Pisces 5th House. Jupiter is in the 5th House conjunct the Lot and is the Exaltation Ruler of the Cancer 9th House. Moon ruling the 9th House is conjunct Jupiter. Venus at 4° Cancer in the 9th House trines Moon/Jupiter/Lot of Travel
Moon, Venus and Jupiter all trine 1st House and Moon/Jupiter trine 9th House.
I've spent 30 days (or more) in Norway, Denmark, the Netherlands, Belgium, Luxembourg, France, Spain, Greece, Turkey, Egypt, Iraq, Thailand, Korea, Honduras, Slovakia, Hungaria and Serbia, lived for 6 years in Germany, 2 years in the UK and 5 years in Romania, plus spent at least 3 days in Monaco, Cheha, Ireland, Canada and a few other places.
Using Alcabitius Houses, Moon/Jupiter are in Pisces 4th House (with 4th House Ruler Jupiter receiving 9th House Ruler Moon by Sign), no Planets in Cancer 9th House, but Lot of Travel is in Aries in the 5th House and unaspected and ruled by Aries 6th House Mars. That would make Venus the Almuten of Travel (Venus is Term Ruler for 9th House Cusp and Lot of Travel and 9th House Ruler Moon is in the Term of Venus) and Venus trines Moon/Jupiter.
I mentioned before the Almuten aspecting the 1st House, that indicates how much control the Native has over their travel. Where you find there is no aspect to the Ascendant (in the 2nd, 6th, 8th or 12th) they have little or no choice in the matter, and they are often expelled, exiled or forced to flee for political or social reasons, or because of conflict or in the case of minors, they go wherever their parents go. When it does aspect the Ascendant, the Native travels by choice for whatever reason.