UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2005

(Commission File No. 1-14728)

Lan Airlines S.A.
(Translation of registrant's name in English)

Avenida Americo Vespucio Sur 901
Renca,
Santiago, Chile
(Address of Principal Executive Offices)

(Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.)

Form 20-F    X    Form 40-F _____

(Indicate by check mark whether the registrant by furnishing the
information contained in this form is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under the
Securities Exchange Act of 1934.)

Yes ____ No     X    

 

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[Lan Airlines Letterhead]

MATERIAL FACT

Santiago, May 18, 2005

Mr. Alejandro Ferreiro Y.
Superintendent of Securities and Insurance
Present

To whom it may concern:

In compliance with Article 9 and the second paragraph of Article 10 of Law 18,045, I inform you of the material fact that, as of this date, we were notified that a Director of the company, Mr. Sebastián Piñera Echenique has resigned from the Board.

Sincerely,

/s/  José Miguel Bambach S.               

José Miguel Bambach S.
General Counsel
Lan Airlines S.A.

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SIGNATURE

                Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: May 19, 2005

	Lan Airlines S.A.
	/s/ Alejandro de la Fuente Goic By: Alejandro de la Fuente Goic Chief Financial Officer