American Airlines has canceled over 1,800 flights across the country since Friday and it is affecting a few flights in Connecticut on Monday.
There are already two delays and two cancellations at Bradley International Airport on Monday morning.
That's American's busiest airport and it prevented the airline from moving aircrafts and crew, which made the staffing shortage even worse.
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The company also said it is hiring pilots and reservations agents to gear up for the holidays.
The airline said most affected customers are being rebooked the same day.
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Southwest also ran into problems this past weekend and delayed more than 1,000 flights.
In August, staffing shortages also caused American Airlines and Spirit to cancel flights.
