Delta has low fares at $620 round trip to Prague from several American Airlines hub airports like Dallas DFW, Miami MIA, Philadelphia PHL, Raleigh RDU, Phoenix PHX and St. Louis STL.
American Airlines hits back with $653 Atlanta to MXP Milan, Italy. Departure dates begin in the last week of October on Monday to Thursday at $653 and Sunday at $683. Low fares in this range are available into mid-March, excluding December holiday weeks.
American Airlines Atlanta ATL – Miami MIA – Milan MXP
$652.60 Monday November 2 – Monday November 9
Flight Miles: 11,050 miles in economy O class.
Delta Airlines Phoenix PHX – New York JFK – Prague PRG
$619.70 Wednesday Sep 9 – Saturday Sep 19
Flight Miles: 12,470 flight miles in economy X outbound and economy V inbound.