| 2019 Formula 1 United States Grand Prix - Free Practice 1 Results |
| Pos | Driver | Nationality | Team | Time/Gap |
| 1 | Max Verstappen | NED | Aston Martin Red Bull Racing Honda | 1m34.057s |
| 2 | Sebastian Vettel | GER | Scuderia Ferrari | + 0.169s |
| 3 | Alexander Albon | THA | Aston Martin Red Bull Racing Honda | + 0.259s |
| 4 | Pierre Gasly | FRA | Red Bull Toro Rosso Honda | + 0.951s |
| 5 | Daniel Ricciardo | AUS | Renault F1 Team | + 1.206s |
| 6 | Romain Grosjean | FRA | Haas F1 Team | + 1.299s |
| 7 | Charles Leclerc | MON | Scuderia Ferrari | + 1.323s |
| 8 | Lewis Hamilton | GBR | Mercedes AMG Petronas Motorsport | + 1.382s |
| 9 | Lance Stroll | CAN | SportPesa Racing Point F1 Team | + 1.529s |
| 10 | Kevin Magnussen | DEN | Haas F1 Team | + 1.602s |
| 11 | Daniil Kvyat | RUS | Red Bull Toro Rosso Honda | + 1.604s |
| 12 | Carlos Sainz | ESP | McLaren F1 Team | + 1.666s |
| 13 | Kimi Raikkonen | FIN | Alfa Romeo Racing | + 1.797s |
| 14 | Sergio Perez | MEX | SportPesa Racing Point F1 Team | + 1.914s |
| 15 | Antonio Giovinazzi | ITA | Alfa Romeo Racing | + 1.980s |
| 16 | Nico Hulkenberg | GER | Renault F1 Team | + 2.067s |
| 17 | Valtteri Bottas | FIN | Mercedes AMG Petronas Motorsport | + 2.102s |
| 18 | Lando Norris | GBR | McLaren F1 Team | + 2.206s |
| 19 | Robert Kubica | POL | ROKiT Williams Racing | + 3.891s |
| 20 | Nicholas Latifi | CAN | ROKiT Williams Racing | + 7.055s |
