But during a time when air travel overall is on the upswing, none of the competing airlines are expecting a lot of extra business -- at least in the short term.
A spokeswoman for Sun Country Airlines says the carrier has seen an increase of around ten to 15 percent.
United Airlines also reports a small bump since Northwest mechanics went on strike Saturday. American Airlines also is seeing heavier bookings, but doesn't know if it's a result of the strike.
So far, Northwest reports only minimal flight cancellations.