Join two tables with multiple foreign keys

SELECT  t.TripId_PK, ls.name StartLocationName, le.name EndLocationName
FROM    trips t
JOIN    locations ls
ON      ls.LocationId_PK = t.StartLocationId_FK
JOIN    locations le
ON      le.LocationId_PK = t.EndLocationId_FK

You can try this

SELECT t.TripId_PK, ls.StartLocationName, le.EndLocationName
FROM Trips t
JOIN Locations ls ON t.StartLocationId_FK = ls.LocationId_PK
JOIN Locations le ON t.EndLocationId_FK = le.LocationId_PK