Sagittarius and Aries both enjoy spontaneity
"Sagittarii love to travel. The Aries and the Sagittarius are good together," said Angel.
Aries is a Cardinal sign (associated with starting things) and Sagittarius is a Mutable sign (associated with flexibility), which means Sagittarii will go along with the things Aries want to do, and be able to "change direction more easily."
Angel also mentioned that Sagittarii and Geminis would travel well together because they are both "interested in experiencing everything," they "enjoy spontaneity," and they are independent and happy to do their own thing.
[Photo via @laurenswells]