The machinists union, which has 22,000 members working at Northwest, made an offer.
And all six unions at Northwest said they saw a need to grant the airline concessions.
Such a move is not likely at Northwest, at least for now, labor experts say.
The last big industry strike was at Northwest, when pilots walked off the job briefly in 1998.
Only the pilots at Northwest have yet to agree to concessions.
At Northwest, (800) 225-2525, is the number to call for general information.
But he did not step in when pilots at Northwest walked out the following year.
They do not want the same thing to happen at Northwest.
The pilots hold the trump card at Northwest, industry experts say.
He was president at Northwest from 1913 to 1921.