According to "douglas m", on Yahoo Answers Uk:
"IF" you were to take a balloon on a plane a latex balloon "if" it was inflated to a average size then it would expand, Once the plane got to its cruising height then it would more than likely just stay the same but as you come down then the balloon would deflate and it would go all wrinkly and horrible.
"IF" it was a foil balloon it would burst even before the plane got to its cruising height.
You wouldn't get arrested for trying to take balloons on a plane they would simply be taken off you at security.
the next time you fly take a packet of crisps with you that you bought on the ground either at the airport and watch what happens when you are in the air.
Southwest airlines
WN SOUTHWEST AIRLINES (U.S.A.) 526
China Southwest Airlines ended in 2002.
No, Southwest Airlines originated in Texas in 1971.
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Yes, you can take it onboard, but you cannot switch it on.
Yes they do.
southwest
More than 34,000 employees work for Southwest Airlines.
China Southwest Airlines was created on 1987-10-15.
The symbol for Southwest Airlines Company in the NYSE is: LUV.
Southwest Airlines headquarters is based in Dallas,Texas. At Love Field Airport.