UPDATE 1-Canada reports progress on NAFTA, says 'we're not there yet'

(Releads with comments from Canadian foreign minister)

OTTAWA/MEXICO CITY, April 4 (Reuters) - Mexico, Canada and the United States have made good progress in their bid to rework the NAFTA trade pact but still have work to do, Canadian Foreign Minister Chrystia Freeland said on Wednesday.

Freeland also said she would be flying to Washington for a meeting on Thursday with U.S. Trade Representative Robert Lighthizer, who is pushing hard for a quick deal in principle to avoid clashing with Mexican presidential elections in July.

The three members of the North American Free Trade Agreement could soon announce the outlines of a deal that would likely tackle the key issue of autos content while leaving other contentious chapters to be dealt with later, three sources familiar with the matter said on Tuesday.

"We're making good progress on NAFTA ... having said that, we're not there yet," Freeland told business executives in Winnipeg. The meeting was televised.

Mexico's Economy Minister Ildefonso Guajardo was holding talks with Lighthizer in Washington on Wednesday ahead of a planned trilateral meeting including Freeland, the Mexican government said in a statement.

At the same time, Mexico's Foreign Minister Luis Videgaray will also be in Washington to meet U.S. President Donald Trump's son-in-law and advisor Jared Kushner, it added.

Moises Kalach, a senior member of the CCE business lobby, which represents Mexico's private sector in the talks to revise NAFTA, said he expects signs of progress even if ministers do not reach a formal agreement.

The United States "is in more of a rush than before ... the window of opportunity is now open, it's a couple of weeks," Kalach said on Mexican television.

"We expect that between two to three weeks - there is a process so that there is a chance to close."

NAFTA negotiating teams have been meeting for weeks to try to narrow their differences, Guajardo said on Monday, sounding a positive note for making further advances at a summit of leaders in the Americas in Peru that begins on April 13.

If an initial NAFTA deal is reached, a longer period will be needed to finalize technical details, Guajardo said.

Trump has threatened to ditch NAFTA if it cannot be reworked to his satisfaction, and talks to modernize the 24-year-old treaty have dragged on since August.

The last formal round of talks closed in March, with no confirmation as yet for a subsequent round. (Reporting by Veronica Gomez and Daina Beth Solomon, additional reporting by David Ljunggren; editing by G Crosse and Chizu Nomiyama)