Noah's Ark
Work your way through the alphabet naming animals from
A-Z (Aardvark -Zither ). 
You can alternate letters or everyone takes  a turn with each letter.

Whether you're traveling by car, plane, train, or canoe, you'll still want to keep your children busy.
Minimize whining with a shoe box of their own. A plastic storage box filled with snacks, juice packs, paper, cards crayons etc. You supply the family, the box will supply the fun!

Fooler, Fooler
State three facts about
yourself. The trick is that one
 of the facts, are not fact at all.
The challenge is who can  discriminate fact from fiction. Take turns being the "fooler".
The players who stump
everyone are the winners

Would You Rather
First select a category...Food for instance. Then each other questions phrased like this: "Would you rather eat 
bugs or French fries?  
French Fries or ice cream? 
Ice Cream with whipped cream or nuts...and so on. 
Topics can be serious or silly.

Junior Opera
For a designated period of 
time, tell your kids that when they want to say something, they have to sing it instead. 

Build a Story
"Once upon a time there lived . . . ." 
Finish the sentence...
Then the rest of the family continues the story one or two sentences at a time.

The Category Game
The first player names a category i.e.. first names, last names, animals, countries, friends, feelings, foods, hot or cold things.  Then take turns naming things that belong in that category. A player is out if they name something that does 
not belong in the category or if they can't think of another item. The game is over when only one person remains. 
Then start over with a new category. 

Three Nouns
State three nouns. Everyone takes turns creating a 
sentence with those three nouns. Alternate who is the noun giver and the sentence makers. An example from my son: Apple, mailbox, cow
"The cow was excited because 
her apple red bonnet arrived
in the mail box today."

GO
Give the kids a magazine. When you say "Go", Each child has a full minute to study the same page from the magazine. Then put the page away and let everyone take turns recalling items from the page.

I'm Going on a Trip

The first player says, "I'm going on a trip and I'm going to pack. . . ," finishing the sentence with the name of something that begins with the letter A. The second player repeats what the first player has said and adds the name of another item starting with B. The third player repeats everything that has been said so far and adds something that begins with C. And so on throughout the alphabet. Anyone who skips or misremembers an item is out. 

Related Links
Tips for Traveling with Kids
Christmas Family Fun
Thanksgiving Family Fun