Wikipedia:WikiProject U.S. Roads/Florida/National Highway System

Some of these are also of the Florida Intrastate Highway System.

• US 1: Key West to I-95 (Miami), SR A1A (Callahan) to Georgia also FIHS from Key Largo to HEFT, I-295 (north) to Georgia
• US 17: I-75 to SR 570 (via US 98) also FIHS
• US 19: I-275 (via SR 694) to Georgia also FIHS
• US 27: SR 112 to FLTP (Clermont), I-10 to Georgia also FIHS from SR 826 to FLTP (Clermont)
• US 27A: I-75 (via US 27) to US 19 also FIHS
• US 29: I-10 to Alabama also FIHS
• US 92: I-275 (via SR 694) to SR 618 FIHS only
• US 98: I-110 to US 231 also FIHS in Walton County
• US 231: US 98 to Alabama also FIHS north of Baldwin Road
• US 301: SR 326 to I-95 (via SR A1A) also FIHS
• US 319: I-10 to Georgia also FIHS
• US 331: US 98 to Alabama also FIHS

• FLTP: I-95 to I-75 also FIHS
• HEFT: US 1 to FLTP also FIHS
• SR 9A: I-95 to I-95 also FIHS
• SR 9B: I-95 to SR 9A also FIHS (as Jacksonville Eastern Beltway)
• SR 20: SR 85 to US 231, I-75 (via SR 331, SR 121) to I-95 (via SR 207) also FIHS from I-75 to I-95
• SR 23: SR 21 to I-10 FIHS only
• SR 26: US 19 to I-75 also FIHS
• SR 29: SR 80 to US 27 also FIHS
• SR 40: I-75 (via SR 326) to I-95 also FIHS
• SR 44: US 19 to I-75 also FIHS
• SR 50: US 19 to I-75 also FIHS
• SR 54: SR 589 (via US 41, SR 597, SR 568) to I-75 (via SR 56) also FIHS (as East/West Connector)
• SR 60: US 19 to I-275, I-75 to I-95 also FIHS from SR 589 to I-275 (as I-275/Veterans Expressway Connector), I-75 to I-95
• SR 64: US 17 to US 27 also FIHS
• SR 70: I-75 to I-95 also FIHS
• SR 77: US 231 to SR 20 also FIHS from CR 2300 to I-10
• SR 78: Burnt Store to I-75 (via Del Prado Extension) FIHS only
• SR 79: US 98 to SR 20 also FIHS from Panama City urban limits to I-10
• SR 80: I-75 to I-95 also FIHS
• SR 85: US 98 to I-10 also FIHS north of SR 123
• SR 87: US 98 to I-10 FIHS only
• SR 112: US 27 to I-95 also FIHS
• SR 123: SR 85 to SR 85 FIHS only
• SR 408: FLTP to SR 417 also FIHS
• SR 417: I-4 to I-4 also FIHS
• SR 429: I-4 to I-4 FIHS only
• SR 524: I-95 to SR 528
• SR 528: I-4 to SR A1A also FIHS
• SR 570: I-4 to I-4 also FIHS
• SR 589: SR 60 to SR 50 also FIHS from SR 60 to US 19 (via US 98) and proposed to US 19
• SR 618: US 92 to I-75 also FIHS
• SR 710: SR 70 to I-95 (via SR 708) also FIHS
• SR 826: US 1 to I-95 also FIHS
• SR 836: HEFT to I-95 also FIHS
• SR 869: I-75 to I-95 also FIHS
• SR 874: HEFT to SR 826 also FIHS
• SR 924: I-75 to I-95 also FIHS
• SR 997: US 1 to US 27 also FIHS

• 118th Street: US 19 to I-275 FIHS only
• Crosstown Expressway/I-4 Connector: SR 618 to I-4 FIHS only
• First Coast Outer Beltway: I-95 to SR 21 FIHS only
• Pensacola Bay Crossing: US 98 to I-110 FIHS only
• Port of Miami Tunnel: I-395 to Port Boulevard FIHS only