Exhibit 99.1 Contact: Adam N. Satterfield Executive Vice President and Chief Financial Officer (336) 822-5721 OLD DOMINION FREIGHT LINE REPORTS THIRD QUARTER 2025 EARNINGS PER DILUTED SHARE OF $1.28 THOMASVILLE, N.C. (October 29, 2025) – Old Dominion Freight Line, Inc. (Nasdaq: ODFL) today announced financial results for the three-month and nine-month periods ended September 30, 2025. "Our operating ratio increased 160 basis points to 74.3% for the third quarter of 2025 as the decrease in revenue had a dele ...