With proper credit to my brother Alan, following is a list of books he recommended at my request when I started spending 4+ hours per week on an airplane. I've read a fair number of them and continue to work through it. Books I have read are in bold. Feel free to comment or give some other recommendations. And yes, I feel superior because I no longer read fiction (although I do feel slightly dumber for having read Glenn Beck's An Inconvenient Book).
Revolutionary Era
Mayflower (Philbrick)
The Founding Brothers (Ellis)
Benjamin Franklin: The First American (Brands)
Benjamin Franklin (Isaacson)
His Excellency (Ellis)
Washington’s Crossing (Fischer)
1776 (McCullough)
The Glorious Cause (Middlekauff)
John Adams (McCullough)
Alexander Hamilton (Chernow)
1800s
Andrew Jackson (Remini)
Andrew Jackson (Brands)
Team of Rivals (Goodwin)
Abraham Lincoln (Donald)
The Battle Cry of Freedom (McPherson)
Manhunt (Swanson)
The Devil in the White City (Larson)
Titan (Chernow)
1900s
The Rise of Theodore Roosevelt (Morris)
Theodore Rex (Morris)
No Ordinary Time (Goodwin)
Freedom From Fear (Kennedy)
Truman (McCullough)
Master of the Senate (Caro)
President Kennedy (Reeves)
Robert Kennedy: His Life (Thomas)
The Best and the Brightest (Halberstam)
Simple Justice (Kluger)
First In His Class (Maraniss)
My Life (Clinton)
Middle East
The Six Day War (Oren)
From Beirut to Jerusalem (Friedman)
Guests of the Ayatollah (Bowden)
Sports
When Pride Still Mattered (Maraniss)
Luckiest Man (Eig)
9/11 - Afghanistan
Ghost Wars (Coll)
9/11 Commission Report
The Looming Tower (Wright)
Iraq
Plan of Attack (Woodward)
Cobra II (Gordon)
The Assassins’ Gate (Packer)
Other Good Choices
Black Hawk Down (Bowden)
Freakonomics (Levitt and Dubner)
The Prize (Yergin)
The World is Flat (Friedman)
Longitudes and Attitudes (Friedman)
Revolutionary Era
Mayflower (Philbrick)
The Founding Brothers (Ellis)
Benjamin Franklin: The First American (Brands)
Benjamin Franklin (Isaacson)
His Excellency (Ellis)
Washington’s Crossing (Fischer)
1776 (McCullough)
The Glorious Cause (Middlekauff)
John Adams (McCullough)
Alexander Hamilton (Chernow)
1800s
Andrew Jackson (Remini)
Andrew Jackson (Brands)
Team of Rivals (Goodwin)
Abraham Lincoln (Donald)
The Battle Cry of Freedom (McPherson)
Manhunt (Swanson)
The Devil in the White City (Larson)
Titan (Chernow)
1900s
The Rise of Theodore Roosevelt (Morris)
Theodore Rex (Morris)
No Ordinary Time (Goodwin)
Freedom From Fear (Kennedy)
Truman (McCullough)
Master of the Senate (Caro)
President Kennedy (Reeves)
Robert Kennedy: His Life (Thomas)
The Best and the Brightest (Halberstam)
Simple Justice (Kluger)
First In His Class (Maraniss)
My Life (Clinton)
Middle East
The Six Day War (Oren)
From Beirut to Jerusalem (Friedman)
Guests of the Ayatollah (Bowden)
Sports
When Pride Still Mattered (Maraniss)
Luckiest Man (Eig)
9/11 - Afghanistan
Ghost Wars (Coll)
9/11 Commission Report
The Looming Tower (Wright)
Iraq
Plan of Attack (Woodward)
Cobra II (Gordon)
The Assassins’ Gate (Packer)
Other Good Choices
Black Hawk Down (Bowden)
Freakonomics (Levitt and Dubner)
The Prize (Yergin)
The World is Flat (Friedman)
Longitudes and Attitudes (Friedman)