package tour vs package holiday

package tour and package holiday both are nouns.

Word	Noun	Adjective	Verb	Adverb
package tour	Yes	No	No	No
package holiday	Yes	No	No	No

As nouns, package tour and package holiday are synonyms defined as:

package tour and package holiday: a tour arranged by a travel agent; transportation and food and lodging are all provided at an inclusive price

package tour (noun)	package holiday (noun)
a tour arranged by a travel agent; transportation and food and lodging are all provided at an inclusive price	a tour arranged by a travel agent; transportation and food and lodging are all provided at an inclusive price