Originally Posted by
jrl767
3- LAX CORRECT; JFK INCORRECT for this leg; AA INCORRECT for this leg; 747-100 CORRECT
Based on this hint, and with the rest of the North American legs covered, this would put the arriving flight of Leg 5 at JFK unless the hint was a mistake. I would then assume EWR would be the departure leg to Europe. However this does not follow the departure airport being east of the arrival airport as EWR is west of JFK.
And along the same lines IAD is West of DCA, so my guess for leg 5 would be BWI-JFK on Allegeheny Airlines DH7 as one of the airlines.
For leg 4, Jlemon beat me to the other airline on this route FLL-DCA