package holiday vs package tour

package holiday and package tour both are nouns.

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

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

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

package holiday (noun)	package tour (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