Substantial claims resulting from an accident or significant incident in excess of our related insurance coverage could have a material adverse effect on our business, financial condition and results of operations. Moreover, any aircraft accident, even if fully insured, could cause the negative public perception that our aircraft are less safe or reliable than those operated by other airlines, which could have a material adverse effect on our business, financial condition and results of operations.

Insurance premiums may also increase due to an accident or incident affecting one of our airline affiliates or alliance partners or affecting other airlines.

Our business, financial condition and results of operations could be adversely affected by high levels of competition within the industry, particularly the entrance of new competitors into the markets in which we operate. Airlines compete primarily over fare levels, frequency and dependability of service, brand recognition, passenger amenities (such as frequent flyer programs) and the availability and convenience of other passenger or cargo services. New and existing airlines could enter our markets and compete with us on any of these bases. Several of our competitors are larger than us and have greater brand recognition and greater resources than we do. Competing carriers include investor-owned, government-subsidized and national flag carriers of foreign countries as well as low-cost carriers offering discounted fares. The U.S.-ChileU.S. -Chile and other open skies agreements may subject us to

further competition from international carriers. In addition to traditional competition among airline companies, we face competition from companies that provide ground transportation, especially in our domestic cargo and passenger businesses, as well as sea transportation for our cargo business. Competition could reduce our passenger traffic and cargo demand, forcing us to reduce our fare levels, which could have a material adverse effect on our revenues and level of operations.

Some of our competitors may receive support from external sources, such as their national governments, which may be unavailable to us. Support may include, among others, subsidies, financial aid or tax waivers. This support could place us at a competitive disadvantage and adversely affect our operations and financial performance.

A large portion of our aircraft are subject to long-term operating leases. Our operating leases typically run from three to twelve years from the date of delivery. We may face more competition for, or a limited supply of, leased aircraft, making it difficult for us to negotiate on competitive terms upon expiration of our current operating leases or to lease additional capacity required for our targeted level of operations. If we are forced to pay higher lease rates in the future to maintain our capacity and the number of aircraft in our fleet, our profitability could be adversely affected.

In recent years we have decided to incorporate a number of new aircraft, equipment and systems. The decision to incorporate these new elements has been based on their potential to enhance customer satisfaction, increase efficiency and/or streamline processes. However, the phase-in of these elements may temporarily result in lower service and operating standards, which could affect how our customers perceive us and have a negative impact on our results of operations.

We require significant amounts of financing to meet our aircraft capital requirements and may require additional financing to fund our other business needs. We cannot guarantee that we will have access to or be able to arrange for financing in the future on favorable terms. If we are unable to obtain financing for a significant portion of our capital requirements, our ability to acquire new aircraft or to expand operations could be impaired and our business negatively affected.

We have a high degree of debt and payment obligations under our aircraft operating leases compared to equity capital. In order to finance our debt, we depend in part on our cash flow from operations. We cannot assure you that in the future we will be able to meet our payment obligations. In addition, the majority of our property and equipment is subject to liens securing our indebtedness. In the event that we fail to make payments on the secured indebtedness, creditors’ enforcement of liens could limit or end our ability to use the affected property and equipment to fulfill our operational needs and thus generate revenue.

Major events affecting the aviation insurance industry (such as terrorist attacks, hijackings or airline crashes) may result in significant increases of the airlines'airlines’ insurance premium or in significant decreases of insurance coverage, as it happened after the 9/11 terrorist attacks. Increases in insurance costs and/or significant reductions in coverage could harm our financial condition and results of operations.

Our operations, including our ability to deliver customer service, are dependent on the effective operation of our equipment, including our aircraft, maintenance systems and reservation systems. Our operations are also dependent on the effective operation of domestic and international air traffic control systems and the air traffic control infrastructure in the markets in which we operate. Equipment failures, personnel shortages, air traffic control problems and other factors that could interrupt operations could adversely affect our operations and financial results as well as our reputation.

Our success depends to a significant extent on the ability of our senior management team and key personnel to operate and manage our business effectively. Our employment agreements with key personnel do not contain any non-competition provisions applicable upon termination. Competition for highly qualified personnel is intense. If we lose any executive officer, senior manager or other key employee and are not able to obtain an adequate replacement, or if we are unable to attract and retain new qualified personnel, our business, financial condition and results of operations could be materially adversely affected.

Approximately 39%49% of our employees, including administrative personnel, cabin crews, flight attendants, pilots and maintenance technicians are members of unions and have contracts and collective bargaining agreements which expire on a regular basis. Our business, financial condition and results of operations could be materially adversely affected by a failure to reach agreement with any labor union representing such employees or by an agreement with a labor union that contains terms that are not in line with our expectations or that prevent us from competing effectively with other airlines.

Certain employee groups such as pilots, flight attendants, mechanics and our airport personnel have highly specialized skills. As a consequence, actions by these groups, such as strikes, walk-outs or stoppages, could severely disrupt our operations and negatively impact our operating and financial performance, as well as how our customers perceive us.

For example, during the third quarter of 2001, members of one of our pilot unions implemented a series of actions that disrupted our services prior to the negotiation of their collective bargaining agreement, which had a negative impact on our operations and our profitability.

Labor costs constitute a significant percentage of our total operating costs (20.4%(19.6% in 2010)2011), and at times in our operating history we have experienced pressure to increase wages and benefits for our employees. A significant increase in our labor costs above the assumed costs could result in a material reduction in our earnings.

Our business is labor intensive. We employ a large number of pilots, flight attendants, maintenance technicians and other operating and administrative personnel. The airline industry has, from time to time, experienced a shortage of qualified personnel, specifically pilots and maintenance technicians. In addition, as is common with most of our competitors, we may, from time to time, face considerable turnover of our employees. Should the turnover of employees, particularly pilots and maintenance technicians, sharply increase, our training costs will be significantly higher. We cannot assure you that we will be able to recruit, train and retain the qualified employees that we need to continue our current operations or replace departing employees. A failure to hire and retain qualified employees at a reasonable cost could materially adversely affect our business, financial condition and results of operations.

Our operations are covered by environmental regulations at local, national and international levels. These regulations cover, among other things, emissions to the atmosphere, disposal of solid waste and aqueous effluents, aircraft noise and other activities incident to our business. Future operations and financial results may vary as a result of such regulations. Compliance with these regulations and new or existing regulations that may be applicable to us in the future could increase our cost base and adversely affect our operations and financial results. In addition, failure to comply with these regulations could adversely affect us in a variety of ways, including adverse effects on our reputation.

We conduct a significant portion of our operations in emerging market countries, particularly in Latin America. As a result, economic and political developments in these countries, including future economic crises and political instability, could impact the Chilean economy or the market value of our securities and have a material adverse effect on our business, financial condition and results of operations. Beginning late 2008, and continuing during 2009, many of the countries we serve, including Chile, experienced economic slowdowns or recessions, which resulted in a substantial weakening of demand. Although economic conditions in other emerging market countries may differ significantly from economic conditions in Chile, we cannot assure that events in other countries, particularly other emerging market countries, will not adversely affect the market value of, or market for, our common shares or ADSs.

Changes in the exchange rate between the Chilean peso and the U.S. dollar or other currencies in the countries in which we operate could adversely affect our business, financial condition and results of operations. We operate in numerous countries and face the risk of variation in foreign currency exchange rates against the U.S. dollar or between the currencies of these various countries. Approximately 99% of our indebtedness at December 31, 20102011 is

denominated in U.S. dollars, 15%22% of our revenues and 40%47% of our operating expenses in 20102011 were denominated in currencies other than the U.S. dollar, mainly the Chilean peso. If the value of the peso, or of other currencies in which revenues are denominated, declines against the U.S. dollar, we will need more pesos or other local currency to repay the same amount of U.S. dollars. The Chilean peso has experienced volatility in recent years, including an average nominal depreciation of 1.3% against the U.S. dollar in 2008, an average nominal depreciation of 4.7% against the U.S. dollar in 2009 and an average nominal appreciation of 4.6% against the U.S. dollar in 2010. The exchange rate of the Chilean peso and other currencies against the U.S. dollar may fluctuate significantly in the future. Changes in Chilean and other governmental economic policies affecting foreign exchange rates could also adversely affect our business, financial condition, results of operations and the return to our shareholders on their common shares or ADSs.

The corporate disclosure requirements that apply to us may not be equivalent to the disclosure requirements that apply to a U.S. company and, as a result, you may receive less information about us than you would receive from a comparable U.S. company. We are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act. The disclosure requirements applicable to foreign issuers under the Exchange Act are more limited than the disclosure requirements applicable to U.S. issuers. Publicly available information about issuers of securities listed on Chilean stock exchanges also provides less detail in certain respects than the information regularly published by listed companies in the United States or in certain other countries. Furthermore, there is a lower level of regulation of the Chilean securities markets and of the activities of investors in such markets as compared with the level of regulation of the securities markets in the United States and in certain other developed countries.

As of April 29, 2011January 31, 2012 our controlling shareholders, beneficially owned 34.01%33.9% of our voting common shares. Controlling shareholders are in a position to elect four of the nine members of our board of directors and are in a position to direct our management. In addition, under the terms of the deposit agreement governing the ADSs, if holders of ADSs do not provide TheJP Morgan Chase Bank, of New York Mellon,N.A., in its capacity as depositary for the ADSs, with timely instructions on the voting of the common shares underlying their ADRs, the depositary will be deemed to have been instructed to give a person designated by the board of directors the right to vote those common shares.

Chilean securities markets are substantially smaller, less liquid and more volatile than major securities markets in the United States. In addition, Chilean securities markets may be materially affected by developments in other emerging markets, particularly other countries in Latin America. Accordingly, although you are entitled to withdraw the common shares underlying the ADSs from the depositary at any time, your ability to sell the common shares underlying ADSs in the amount and at the price and time that you wish to do so may be substantially limited. This limited trading market may also increase the price volatility of the ADSs or the common shares underlying the ADSs.

If the peso exchange rate falls relative to the U.S. dollar, the value of the ADSs and any distributions made thereon from the depositary could be adversely affected. Cash distributions made in respect of the ADSs are received by the depositary (represented by the custodian bank in Chile) in pesos, converted by the custodian bank into U.S. dollars at the then prevailing exchange rate and distributed by the depositary to the holders of the ADRs evidencing those ADSs. In addition, the depositary will incur foreign currency conversion costs (to be borne by the holders of the ADRs) in connection with the foreign currency conversion and subsequent distribution of dividends or other payments with respect to the ADSs.

Equity investments in Chile by non-Chilean residents have been subject in the past to various exchange control regulations that govern investment repatriation and earnings thereon. Although not currently in effect, regulations of the Central Bank of Chile have in the past required, and could again require, foreign investors acquiring securities in the secondary market in Chile to maintain a cash reserve or to pay a fee upon conversion of foreign currency to purchase such securities. Further, future changes in withholding taxes could negatively affect non-Chilean residents that invest in our shares.

When we established our ADS facility as part of our initial public offering in 1997, there were foreign exchange controls in Chile. At that time, in order to allow the depositary and investors to be able to enter into foreign exchange transactions to repatriate from Chile amounts they received in connection with the deposited shares of common stock (including dividends and proceeds from the sale in Chile of the underlying shares of common stock and any rights with respect thereto), we entered into a foreign investment contract (the “Foreign Investment Contract”) with the Central Bank and the depositary. The Foreign Investment Contract guaranteed ADS investors and the depositary access to the Formal Exchange Market to convert amounts from Chilean pesos into U.S. dollars and to repatriate such amounts.

In 2001, a new Compendium of Foreign Exchange Regulations (the “New Compendium”) removed exchange controls and many other barriers to investment. However, even though there are no longer foreign exchange controls in Chile, all foreign investment contracts (including the Foreign Investment Contract), continue to remain in full force.

We cannot assure that additional Chilean restrictions applicable to the holders of ADRs, the disposition of the common shares underlying ADSs or the repatriation of the proceeds from an acquisition, a disposition or a dividend payment, will not be imposed or required in the future, nor could we make an assessment as to the duration or impact, were any such restrictions to be imposed or required. For further information, see “Additional“Item 10. Additional Information—Foreign Investment and Exchange Controls in Chile,” under Item 10.

The Chilean Corporation Law, provides that preemptive rights shall be granted to all shareholders whenever a company issues new shares for cash, giving such holders the right to purchase a sufficient number of shares to maintain their existing ownership percentage. We will not be able to offer shares to holders of ADSs and shareholders located in the United States pursuant to the preemptive rights granted to shareholders in connection with any future issuance of shares unless a registration statement under the U.S. Securities Act of 1933, as amended, or the Securities Act,(the “Securities Act”), is effective with respect to such rights and shares, or an exemption from the registration requirements of the Securities Act is available. At the time of any rights offering, we will evaluate the potential costs and liabilities associated with any such registration statement in light of any indirect benefit to us of enabling U.S. holders of ADRs evidencing ADSs and shareholders located in the United States to exercise preemptive rights, as well as any other factors that may be considered appropriate at that time, and we will then make a decision as to whether we will file a registration statement. We cannot assure that we will decide to file a registration statement or that such rights will be available to ADS holders and shareholders located in the United States.

The Chilean government founded Lan Airlines (formerly Lan Chile S.A.) in 1929. Lan Airlines was a government-owned company from 1929 until its incorporation in 1983. Lan AirlinesWe began international service to Buenos Aires, Argentina in 1946, to the United States in 1958 and to Europe in 1970. In 1989, the Chilean government sold 51%51.0% of Lan Airlines’Airlines’s capital stock to Chilean investors and to Scandinavian Airlines System. In 1994, our controlling shareholders together with other major shareholders acquired 98.7% of Lan Airlines’Airlines’s stock, including the remaining stock held by the Chilean government, in a series of transactions. As of February 28, 2011, the29, 2012, our controlling shareholders held 34.01%33.9% of our capital stock. For more information about our controlling shareholders, see “Controlling“Item 7. Controlling Shareholders and Related Party Transactions—Controlling Shareholders” and “Related“Item 7. Controlling Shareholders and Related Party Transactions—Related Party Transactions” under Item 7.

Our principal executive offices are located at Presidente Riesco 5711, 20^th floor, Las Condes, Santiago, Chile and our general telephone number at this location is (56-2) 565-2525. We have designated LAN is a company primarily involvedAirlines as our agent in the transportationUnited States, located at 970 South Dixie Highway, Miami, Florida 33156. Our website address iswww.lan.com. Information obtained on, or accessible through, this website is not incorporated by reference herein and shall not be considered part of passengersthis annual report. For more information contact Gisela Escobar, Director of Investor Relations at gisela.escobar@lan.com.

Capital Expenditures

For a description of our capital expenditures, see “Item 5. Operating and cargo. Our operations are carried out principally by Lan AirlinesFinancial Review and also by a number of different subsidiaries. As of February 28, 2011, in the passenger business we operated through six main airlines: Lan Airlines, Transporte Aéreo S.A. (which does business under the name “Lan Express”), Lan Perú S.A. (“Lan Peru”), Aerolane Líneas Aéreas Nacionales del Ecuador S.A. (“Lan Ecuador”), Lan Argentina S.A. (“Lan Argentina,” previously Aero 2000 S.A.)Prospects—Liquidity and the recently acquired Aerovías de Integración Regional, Aires S.A. (“Aires”)Capital Resources—Capital Expenditures”.

On August 13, 2010, we jointly announced with TAM that we had entered into a non-binding Memorandum of Understanding relating to the proposed all-stock transaction that would combine the holdings of LAN and TAM under a single parent entity.