TEXAS INTERNATIONAL AIRLINES JULY 1, 1970
TEXAS INTERNATIONAL AIRLINES APRIL 1, 1973
TEXAS INTERNATIONAL AIRLINES MARCH 15, 1978
TEXAS INTERNATIONAL AIRLINES APRIL 1, 1979
TEXAS INTERNATIONAL AIRLINES JUNE 1, 1980  
TEXAS INTERNATIONAL AIRLINES APRIL 1, 1981
TEXAS INTERNATIONAL AIRLINES JULY 15, 1981
Airline Route Maps
(Page 9 of 10)
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TRANSAMERICA AIRLINES MAY 1, 1982
TRANSAMERICA AIRLINES MAY 1, 1984
TRANS WORLD AIRLINES APRIL 28, 1968
TRANS WORLD AIRLINES APRIL 30, 1972
TRANS WORLD AIRLINES MAY 1, 1974  
TRANS WORLD AIRLINES MAY 1, 1975  
TRANS WORLD AIRLINES JUNE 10, 1976  
TRANS WORLD AIRLINES OCTOBER 30, 1977
TRANS WORLD AIRLINES APRIL 29, 1979
TRANS WORLD AIRLINES AUGUST 1, 1980
TRANS WORLD AIRLINES JANUARY 8, 1981
TRANS WORLD AIRLINES DECEMBER 1, 1981
TRANS WORLD AIRLINES OCTOBER 31, 1982
TRANS WORLD AIRLINES JULY 1, 1983
TRANS WORLD AIRLINES FEBRUARY 1, 1984
TRANS WORLD AIRLINES MARCH 1, 1985
TRANS WORLD AIRLINES APRIL 27, 1986
TRANS WORLD AIRLINES JANUARY 31, 1987
TRANS WORLD AIRLINES JUNE 1, 1987
TRANS WORLD AIRLINES OCTOBER 30, 1988
TRANS WORLD AIRLINES SEPTEMBER 10, 1989
TRANS WORLD AIRLINES JUNE 1, 1992
TRANS WORLD AIRLINES DECEMBER 16, 1992
TRANS WORLD AIRLINES OCTOBER 31, 1993
TRANS WORLD AIRLINES JULY 1, 1994
TRANS WORLD AIRLINES DECEMBER 1997 (NORTH AMERICA)
TRANS WORLD AIRLINES DECEMBER 1997 (EUROPE/MIDDLE EAST)
TAHOE AIR JULY 1, 1999
SWIFT AIRE LINES AUGUST 1, 1976
SWIFT AIRE LINES JULY 1, 1979
SWIFT AIRE LINES AUGUST 3, 1980  
SWIFT AIRE LINES APRIL 1, 1981
SWIFT AIRE
TENNESSEE AIRWAYS NOVEMBER 15, 1979
TENNESSEE AIRWAYS MARCH 2, 1981
TENNESSEE AIRWAYS MAY 1, 1982
TENNESSEE AIRWAYS MAY 1, 1983   
TENNESSEE AIRWAYS MARCH 4, 1984
TENNESSEE AIRWAYS MAY 6, 1985   
TENNESSEE
AIRWAYS
TRANS-MO AIRLINES NOVEMBER 15, 1979
TRANSWESTERN AIRLINES NOVEMBER 15, 1979
TRANSWESTERN AIRLINES JANUARY 6, 1981
TRANSWESTERN AIRLINES JULY 1, 1981
TRANSWESTERN AIRLINES SEPTEMBER 7, 1983
TRANSWESTERN AIRLINES JUNE 3 ,1983
TRANS COLORADO AIRLINES AUGUST 1, 1985
TRANS-CENTRAL AIRLINE APRIL 24, 1983
TRANS-CENTRAL AIRLINE SEPTEMBER 15, 1983
TRANS-CENTRAL AIRLINE MAY 1, 1984
TRANS MIDWEST AIRLINES MAY 1, 1984
TEXAS AIRLINES FEBRUARY 15, 1985
SUSQUEHANNA AIRLINES JUNE 6, 1983
SUSQUEHANNA AIRLINES FEBRUARY 15, 1985
TRANS AIR FEBRUARY 15, 1985
TRANSTAR AIRLINES MARCH 14, 1986
TRANSTAR AIRLINES JUNE 15, 1987
TRISTAR AIRLINES JANUARY 11, 1996
ULTRAIR EARLY 1995
UNITED AIRLINES JUNE 1, 1972
UNITED AIRLINES MARCH 2, 1983
UNITED AIRLINES JUNE 1, 1984
UNITED SHUTTLE/SHUTTLE BY UNITED OCT. 1, 1994
TEJAS AIRLINES NOVEMBER 15, 1979
Trans Southern
Airways
TRANS SOUTHERN AIRWAYS FEBRUARY 15, 1985
TIME AIR NOVEMBER 15, 1979
TIME AIR OCTOBER 27, 1985  
TIME AIR MAY 1, 1988
TIME AIR MAY 1, 1989
TRANSAIR (CANADA) MAY 25, 1976
TEXAS NATIONAL AIRLINES NOVEMBER 5, 1984
TEXAS NATIONAL AIRLINES JULY 1, 1985
TRANS STATES AIRLINES/TRANS WORLD EXPRESS (1990)
Trans Penn Airlines
TRANS PENN AIRLINES NOVEMBER 15, 1979