FlyerTalk Forums - View Single Post - Does Southwest require passport for domestic travel?
Old Sep 1, 2015, 2:25 pm
  #6  
MSPeconomist
A FlyerTalk Posting Legend
 
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,417
If OP is flying to/from New Mexico, a passport is needed just in case an airline agent doesn't know than NM is one of the fifty states. District of Columbia is similarly risky, because some people think it's a region of South America.
MSPeconomist is offline