Air transportation, scheduled Sample Contracts

EXHIBIT 4.12 DELTA AIR LINES, INC. Common Stock, par value $1.50 per share REGISTRATION RIGHTS AGREEMENT -----------------------------
Registration Rights Agreement • December 21st, 2004 • Delta Air Lines Inc /De/ • Air transportation, scheduled • New York
Among
Credit Agreement • April 20th, 2006 • Amr Corp • Air transportation, scheduled • New York
EMPLOYMENT AGREEMENT AMENDMENT NO. 2
Employment Agreement • August 16th, 1999 • Ual Corp /De/ • Air transportation, scheduled
EXHIBIT 10.1
Stock Purchase Agreement • March 31st, 2005 • Hawaiian Holdings Inc • Air transportation, scheduled • Delaware
TRUSTEE Senior Convertible Notes due 2024 INDENTURE
Indenture • May 7th, 2004 • Mesa Air Group Inc • Air transportation, scheduled • New York
Medium-Term Notes, Series C
Distribution Agreement • January 8th, 1999 • Delta Air Lines Inc /De/ • Air transportation, scheduled • New York
EXHIBIT 4.1 CREDIT AGREEMENT DATED AS OF MAY 19, 2000
Credit Agreement • August 13th, 2002 • Delta Air Lines Inc /De/ • Air transportation, scheduled • New York
BACKGROUND
Escrow Agreement • April 22nd, 2005 • U.S. Helicopter CORP • Air transportation, scheduled • New Jersey
RECITALS
Voting Agreement • December 31st, 2001 • Aloha Airgroup Inc • Air transportation, scheduled • Delaware
PLEDGE AGREEMENT
Pledge Agreement • February 21st, 2001 • Travelbyus Inc • Air transportation, scheduled • Texas
AS ISSUER, TO BANK ONE, N.A., AS TRUSTEE
First Supplemental Indenture • January 23rd, 2002 • Continental Airlines Inc /De/ • Air transportation, scheduled • New York
LOAN AND SECURITY AGREEMENT
Loan and Security Agreement • April 11th, 2000 • Great Lakes Aviation LTD • Air transportation, scheduled • California
AND
Employment Agreement • December 23rd, 2002 • Mesa Air Group Inc • Air transportation, scheduled • Arizona
RECITALS
Note Purchase Agreement • November 25th, 2008 • U.S. Helicopter CORP • Air transportation, scheduled • New York
Between
Warrant Agreement • June 28th, 2000 • Aviation Group Inc • Air transportation, scheduled • Texas
W I T N E S S E T H:
Distribution Agreement • November 14th, 1995 • Mesaba Holdings Inc • Air transportation, scheduled
PARTICIPATION AGREEMENT Dated as of May 24, 2001
Participation Agreement • November 16th, 2001 • American Airlines Inc • Air transportation, scheduled • New York
Among
Merger Agreement • June 13th, 2001 • Ual Corp /De/ • Air transportation, scheduled • Delaware
ARTICLE I THE MERGER
Merger Agreement • November 26th, 1997 • Midway Airlines Corp • Air transportation, scheduled • Delaware
June 1, 2001
Share Purchase Agreement • June 13th, 2001 • Ual Corp /De/ • Air transportation, scheduled

Subject to the terms and conditions hereof, as soon as practicable after the commencement of the tender offer to be commenced by Buyer pursuant to the Merger Agreement (the "Tender Offer"), but in no event later than the scheduled ------------ expiration date of the Tender Offer as of the date hereof, you will tender to Buyer, or cause to be tendered, all of the Shares, regardless of whether another offer for such Shares has been made. If you withdraw your tender of Shares in the Tender Offer, you shall immediately, but in no event later than the scheduled expiration date of the Tender Offer as of the date hereof, re-tender such Shares to Buyer.

ARTICLE II INVESTOR'S REPRESENTATIONS AND WARRANTIES
Securities Purchase Agreement • June 20th, 2002 • Midwest Express Holdings Inc • Air transportation, scheduled • New York
TO
Indenture • December 21st, 2004 • Delta Air Lines Inc /De/ • Air transportation, scheduled • New York