Effective upon launch of Unlimited Domestic Upgrades (planned for the second quarter of 2010)

1. Eligible Customers: This upgrade will automatically be requested on behalf of Mileage Plus members at the Global Services, 1K, Premier Executive, and Premier level.
2. Valid Carrier: This upgrade may be used only on 2 or 3-cabin flights operated and marketed by United® or United Express®, and not on flights operated or marketed by other airlines.
3. Valid Routing: This upgrade may be used for travel on United and United Express within Region 1: the Continental United States, Hawaii, Alaska, Canada, Central America and the Caribbean, with the exception of 3-cabin transcontinental p.s.-branded flights. For specific definitions please refer to the detailed chart.
4. Upgradeable Booking Classes: This upgrade may be used on United Business (J,C,D,Z) and United Economy fares (Y,B,M,E,U,H,Q,V,W,S,T,K,L) in Region 1, except on 3-cabin transcontinental p.s.-branded flights, and anywhere the terms and conditions of sale state that the booking class is not eligible for an upgrade.
5. Non-Upgradeable Tickets: This upgrade may not be used on any booking classes not specifically listed as upgradeable, or on any Mileage Plus award ticket or previously upgraded ticket (G,XY,XC,NY,NC,X,I,O,R,N, or Standard Awards booked in Y or C).
6. Mileage Plus Accrual: The Mileage Plus miles earned will be based upon the class of service purchased, not the upgraded class of service.
7. Ticketing: Ticket must be issued in the purchased United Economy class or United Business class fare.
8. Request Upgrade: The upgraded United First booking class or United Business booking class will automatically be requested for a Global Services, 1K, Premier Executive, or Premier customer after eligible ticket is issued in the purchased United Economy or United Business fare. If available, the upgraded class will be confirmed as designated below. Upgrade space may not always be available on all flights or on all days of the week when traveling.
9. Upgrade Processing: Upgrades will be processed based on the availability of capacity-controlled seating at the designated times determined by the Mileage Plus status of the traveler: Global Services - up to 120 hours prior to departure; 1K - up to 100 hours; Premier Executive - up to 72 hours; Premier - up to 48 hours. Upgrades are subject to availability.
10. Upgrade Rules: Upgrades may not be combined to obtain a two-cabin upgrade. For flights that stop en route, the upgrade is only permitted when the upgraded seating is available and confirmed on all portions of the flight.
11. Changes/Refunds: The rules of the fare purchased determine the changes or refunds that are allowed on the itinerary; check with a United agent or your travel professional for details.
12. Companions: Upgrades are non-transferable, but may be used to upgrade up to one companion traveling on the same reservation number as the eligible elite member, following the same guidelines.

Other Important Notes: Other restrictions may apply. Terms and conditions subject to change without notice.

1. Valid Carrier: This upgrade certificate may be used only on United® or United Express® flights (only on multi-cabin aircraft) and not on flights operated by other airlines. Upgrade requests for flights marketed by other airlines but operated by United are only permitted at the airport on the day of travel, subject to availability.
   
   
2. Valid Routing: This upgrade may be used for travel on United and United Express within Region 1 which includes - North America,Hawaii, Caribbean and Central America. For specific definitions please refer to the detailed chart*. Stopovers are not permitted.
   
   
3. Upgradeable Booking Classes: This upgrade may be used on United Business (C,D,J) and United Economy fares (Y,B,M,E,H,U,Q,V,W,S,T,K,L) in Region 1, except where the terms and conditions of sale state that the booking class is not eligible for an upgrade.
   
   
4. Non-Upgradeable Tickets: This upgrade may not be used on any booking classes not specifically listed as upgradeable, or on any Mileage Plus award ticket. Some Internet sites, such as Priceline and Hotwire, issue tickets that are not upgradeable. Please check with your Internet site for terms and conditions.
   
   
5. Mileage Plus Accrual: The Mileage Plus miles earned will be based upon the class of service purchased, not the upgraded class of service.
   
   
6. Ticketing: Ticket must be issued in the purchased United Economy class or United Business class fare. Ticket will not be reissued using this upgrade certificate.
   
   
7. Request Upgrade: The upgraded United First NF booking class or United Business NC booking class of service may be requested after ticket is issued in the purchased United Economy class or United Business class fare. If available, the upgraded class will be confirmed as designated below and seat assignment may be requested. The upgraded NF/NC booking class may not always be available on all flights or on all days of the week when traveling.
   
   
8. Upgrade Processing: For United or United Express operated flights, this upgrade will be processed based on the availability of capacity-controlled seating at the designated times determined by the Mileage Plus status of the traveler: 1K - 100 hours; Premier Executive - 72 hours; Premier - 48 hours; Premier Associate - 36 hours; all others - 24 hours. All times are before scheduled flight departure. Upgrades are subject to availability.
   
   
9. Upgrade Rules: Multiple certificates or awards may not be combined to obtain a two-cabin upgrade. For flights that stop en route, the upgrade is only permitted when the upgraded seating is available and confirmed on all portions of the flight.
   
   
10. Changes/Refunds: The rules of the fare purchased determine the changes or refunds that are allowed on the itinerary; check with United or a travel professional for details. Purchased upgrades are non-refundable.
    
    
11. Companions: Certificate is non-transferable, but may be used to upgrade one traveling companion to the same class of service following the same guidelines. Companion must be traveling on same flight as certificate holder. Additional upgrade certificate(s) will be required.
    
    
12. Other Important Notes: This upgrade certificate may only be used to upgrade one person. Certificate is not combinable with other upgrades. Certificate has no cash value and may not be altered or duplicated. Lost, stolen, expired, or destroyed upgrade certificates will not be replaced. Expiration dates will not be extended. This certificate is void if sold or bartered. Other restrictions may apply.Terms and conditions subject to change without notice.
    

1. Valid Carrier: This upgrade certificate may be used only on United or United Express flights (only on multi-cabin aircraft) and not on flights operated by other airlines. Upgrade requests for flights marketed by other airlines but operated by United are only permitted at the airport on the day of travel, subject to availability.
   
   
2. Valid Routing: This upgrade may be used for travel on United or United Express within Region 1, which includes North America, Hawaii, Caribbean and Central America. For specific definitions please refer to the detailed chart*. Stopovers are not permitted.
   
   
3. Upgradeable Booking Classes: This upgrade may be used on United Business (C, D,J) and United Economy fares (Y, B, M, E, H, U, Q, V, W, S, T, K, L) in Region 1, except where the terms and conditions of sale state that the booking class is not eligible for upgrade.
   
   
4. Non-Upgradeable Tickets: This upgrade may not be used on any booking classes not specifically listed as upgradeable, or on any Mileage Plus® award ticket. Some Internet sites, such as Priceline.com and Hotwire.com, issue tickets that are not upgradeable. Please check with your Internet site for terms and conditions.
   
   
5. Mileage Plus Accrual: The Mileage Plus miles earned will be based upon the class of service purchased, not the upgraded class of service.
   
   
6. Ticketing: Ticket must be issued in the purchased United Economy class or United Business class fare. Ticket will not be reissued using this upgrade certificate.
   
   
7. Request Upgrade: The upgraded United First NF booking class or United Business NC booking class of service may be requested after ticket is issued in the purchased United Economy class or United Business class fare. If available, the upgraded class will be confirmed and a seat assignment may be requested. The upgraded NF/NC booking class may not always be available on all flights or on all days of the week when traveling.
   
   
8. Upgrade Processing: For United- and United Express-oerated flights, upgrade may be requested any time after ticketing, and this upgrade will be processed based on the availability of capacity-controlled seating. Upgrades are subject to availability.
   
   
9. Upgrade Rules: Multiple certificates or awards may not be combined to obtain a two-cabin upgrade. For flights that stop en route, the upgrade is only permitted when the upgraded seating is available and confirmed on all portions of the flight.
   
   
10. Changes/Refunds: The rules of the fare purchased determine the changes or refunds that are allowed. Check with United or a travel professional.
    
    
11. Other Important Notes: This upgrade certificate may only be used to upgrade one person. Certificate has no cash value and may not be altered or duplicated. This upgrade is assignable in person at the airport. Valid ID is required for authorization. Lost, stolen, expired or destroyed upgrade certificates will not be replaced. Expiration date will not be extended. This certificate is void if sold or bartered. Other restrictions may apply. Terms and conditions subject to change without notice.
    

1. Valid Carrier: This upgrade certificate may be used only on United, United Express or Lufthansa flights (only on multi-cabin aircraft) and not on flights operated by other airlines. Upgrade requests for flights marketed by other airlines but operated by United are only permitted at the airport on the day of travel, subject to availability.
   
   1a. Lufthansa Standby: This upgrade may be used on a standby basis, subject to availability, on the day of travel on any eligible Lufthansa flight in accordance with the terms and conditions of this certificate, except when booked in LH booking classes X, I, R, N, W, S and E. In addition L and T fares are also excluded for Intra-Europe flights. Please note: This upgrade requires a 14-day advanced notification to Mileage Plus in order to print and mail the certificate for presentation to Lufthansa on the day of departure. Please contact the MPI Service Center to have certificates printed.
   
   
2. Valid Routing: This upgrade may be used for travel on United and United Express in or between Region 1 or Region 2.
   Region 1: North America, Hawaii, Caribbean and Central America.
   Region 2: South America, Europe, North or South Asia, Japan, Australia.
   For specific definitions please refer to the detailed chart*. Stopovers are not permitted. An itinerary with a connection of 12 hours or more is considered a stopover and will require additional upgrades. This certificate voucher is also valid on all international Lufthansa operated flights worldwide for standby upgrade.
   
   
3. Upgradeable Booking Classes fares: This upgrade may be used on United Business booking classes (C,D,J) and United Economy booking classes (Y, B, E, M, U, H, Q, V, W, S, T, K, L) for travel in Region 1. This upgrade may be used on United Business booking classes (C,D,J) and United Economy booking classes fares (Y, B, E, M, U, H, Q, V, W) for travel in Region 2.
   
   
4. Non-Upgradeable Tickets Fares: The upgrade may not be used on with tickets in any booking classes not specifically listed in item three (Upgradeable Booking Classes), or any Mileage Plus award ticket or Lufthansa Miles and More award ticket. Some Internet sites, such as Priceline.com and Hotwire.com, issue tickets that are not upgradeable. Please check with your Internet site for terms and conditions.
   
   
5. Mileage Plus Accrual: The Mileage Plus miles you earned will be based upon the class of service you purchased, not the upgraded class of service.
   
   
6. Ticketing: Ticket must be issued in the purchased United Economy- or United Business-class fare or Lufthansa Economy- or Lufthansa Business-class fare. Ticket will not be reissued using this upgrade certificate. If traveling on Lufthansa, a paper upgrade certificate must be presented upon check-in on the day of departure.
   
   
7. Upgrade Request: The upgraded United First NF booking class or United Business NC booking class of service may be requested after ticket is issued in the purchased United Economy- or United Business-class fare. If available, the upgraded class will be confirmed and a seat assignment may be requested. The upgraded NF/NC booking class may not always be available on all flights or on all days of the week when traveling.
   
   7a. Lufthansa Upgrade Request: When traveling on Lufthansa, a standby upgrade may be requested at time of check-in. Prior to traveling on Lufthansa, request an exchange of a systemwide e-upgrade for a paper upgrade certificate to use on Lufthansa from the MPI Service Center. The upgraded class will be confirmed upon check-in, if available, and a seat assignment may be requested. Lufthansa check-in deadlines apply.
   
   
8. Upgrade Processing: For United- and or United Express-operated flights, this upgrade may be requested any time after ticketing, and will be processed based on the availability of capacity-controlled seating. Upgrades are subject to availability.
   
   
9. Upgrade Rules: Multiple certificates or awards may not be combined to obtain a two-cabin upgrade. For flights that stop en route, the upgrade is only permitted when the upgraded seating is available and confirmed on all portions of the flight.
   
   
10. Changes/Refunds: The rules of the fare you purchased determine the changes or refunds that are allowed. Check with United or a your travel professional.
    
    
11. Other Important Notes: This upgrade certificate may only be used to upgrade one person. Certificate has no cash value and may not be altered or duplicated. This upgrade is assignable in person at the airport. Valid ID is required for authorization. Lost, stolen, expired, or destroyed upgrade certificates will not be replaced. Expiration dates will not be extended. This certificate is void if sold or bartered. Other restrictions may apply. Terms and conditions subject to change without notice.
    
    
12. Validity Period: This upgrade certificate is only valid only for travel one year from date of issue. For example, upgrade certificates issued in January 2009 are valid for travel through January 31, 2010.