BUFFALO, N.Y.-- First Niagara branches are officially transitioning to KeyBank branches this weekend.

All First Niagara branches closed at 3 p.m. Friday and most will reopen on Tuesday, Oct. 11, as KeyBank offices.

Cleveland-based KeyCorp completed its $4.1 billion purchase of Buffalo-based First Niagara Financial Group on July 29 and will convert First Niagara's branches into KeyBanks during the Columbus Day weekend.

Here's how the conversion will work:

  • 11:59 p.m. Thursday (Oct. 6): First Niagara's online bill pay service no longer available.
  • 3 p.m. Friday (Oct. 7): All First Niagara branches close.
  • 6 p.m. Friday (Oct. 7): FirstNiagara.com, mobile banking and telephone banking no longer available.
  • Saturday, Sunday, Monday (Oct. 8, 9, 10): All First Niagara branches remain closed.
  • Tuesday, Oct. 11: First Niagara branches reopen, with all systems and accounts converted to KeyBank. Online bill pay, and online, mobile and telephone banking available again.

Steve Fournier, president of KeyBank's Central New York market, said First Niagara customers will be able to use their First Niagara checks, credit and debit cards, with no change in routing or PIN numbers, throughout the weekend and afterward.

First Niagara customers will be able to withdraw money from First Niagara and KeyBank ATMs, but they will not be able to make deposits at them during the conversion. KeyBank customers will also be able to bank as usual at all KeyBank branches and make use of all of the bank's services throughout the conversion, Fournier said.

First Niagara customers may call First Niagara's customer service center at (800) 421-0004 for assistance during the conversion.

The acquisition, which was announced on Oct. 30 last year, includes approximately 300 First Niagara branches in New York, Pennsylvania, Connecticut, and Massachusetts, bringing KeyBank's total to more than 1,200 branches throughout its 15-state footprint. It also adds approximately $29 billion in deposits and total assets of $40 billion to KeyCorp.