Columns: District | Vacator | Reason for change | Successor | Date successor seated
Missouri 6th | Vacant | Rep. Philip A. Bennett died in previous Congress | Marion T. Bennett (R) | January 12, 1943 | California 2nd | Harry L. Englebright (R) | Died May 13, 1943 | Clair Engle (D) | August 31, 1943 | Kansas 2nd | Ulysses S. Guyer (R) | Died June 5, 1943 | Errett P. Scrivner (R) | September 14, 1943 | New York 32nd | Francis D. Culkin (R) | Died August 4, 1943 | Hadwen C. Fuller (R) | November 2, 1943 | Kentucky 4th | Edward W. Creal (D) | Died October 13, 1943 | Chester O. Carrier (R) | November 30, 1943 | Pennsylvania 17th | J. William Ditter (R) | Died November 21, 1943 | Vacant until the next Congress | Vacant until the next Congress | Alabama 3rd | Henry B. Steagall (D) | Died November 22, 1943 | George W. Andrews (D) | March 14, 1944 | Colorado 1st | Lawrence Lewis (D) | Died December 9, 1943 | Dean M. Gillespie (R) | March 7, 1944 | Illinois 19th | William H. Wheat (R) | Died January 16, 1944 | Rolla C. McMillen (R) | June 13, 1944 | Illinois 7th | Leonard W. Schuetz (D) | Died February 13, 1944 | Vacant until the next Congress | Vacant until the next Congress | New York 4th | Thomas H. Cullen (D) | Died March 1, 1944 | John J. Rooney (D) | June 6, 1944 | New York 11th | James A. O'Leary (D) | Died March 16, 1944 | Ellsworth B. Buck (R) | June 6, 1944 | California 16th | Will Rogers, Jr. (D) | Resigned May 23, 1944 to enter the US Army | Vacant until the next Congress | Vacant until the next Congress | Virginia 2nd | Winder R. Harris (D) | Resigned September 15, 1944 | Ralph Hunter Daughton (D) | November 7, 1944 | Florida 3rd | Robert L. F. Sikes (D) | Resigned October 19, 1944 to enter the US Army | Vacant until the next Congress | Vacant until the next Congress | South Carolina 2nd | Hampton P. Fulmer (D) | Died October 19, 1944 | Willa L. Fulmer (R) | November 7, 1944