Interstate 678 runs from JFK Airport along the Van Wyck Expressway, Whitestone Expressway (formerly Whitestone Parkway), Bronx-Whitestone Bridge, and a converted section of the Hutchinson River Parkway. It was planned to run along a cancelled freeway to I-278 before being routed on the Van Wyck.
| Mile | Northbound | Southbound | Notes |
|---|---|---|---|
| Queens County Borough of Queens |
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| Speed Limit 30 | |||
| 0.0 |  |
Terminal 7 Terminals 5 and 6 |
JFK Airport JFK Expressway |
| 0.0 | Terminal 8 | JFK Airport JFK Expressway |
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| 0.0 | Terminal 4 | JFK Airport JFK Expressway |
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| 0.2 | Terminals 1-3 | JFK Airport JFK Expressway |
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| Speed Limit 50 | Speed Limit 30 | ||
| 0.5 | Exit A Return to terminals Port Authority Police |
Exit A Citibank Port Authority Police Vehicles over 12'-6'' |
JFK Airport |
| 1.4 | Exit B Cell Phone Lot Port Authority Administration General Aviation Vehicles over 12'-6'' |
JFK Airport | |
| 1.7 | Exit C Long Term Parking Rental Car Returns All Cargo Areas |
Exit C Long Term Parking Rental Car Returns Cell Phone Lot All Cargo Areas |
JFK Airport |
| 2.1 | Exit D Airport Hotel |
JFK Airport | |
| 2.3 | Exit 1A EastBelt Parkway East Eastern Long Island |
Exits 1-1E East EastTruck-bus route Belt Parkway East Passenger cars only Eastern Long Island |
 East |
| 2.4 | Exits 1B-2 Belt Parkway West Verrazano Bridge Rockaway Boulevard |
Exit 1W Belt Parkway West Brooklyn Verrazano Bridge |
West |
| 2.9 | Exit 2 Rockaway Boulevard |
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| 3.5 | Exit 3 Linden Boulevard |
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| 4.2 | Exit 4 Liberty Avenue |
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| 4.6 | Exit 5 Atlantic Avenue |
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| 5.0 | Exit 6 Jamaica Avenue Hillside Avenue |
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| 5.1 | Exit 6 Hillside Avenue Jamaica Avenue |
Ramp diverges north of exit 8 | |
| 5.6 | Exit 8 Main Street Union Turnpike |
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| 5.6 | Exit 9 WestQueens Boulevard |
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| 6.1 | Exit 10 Grand Central Parkway LaGuardia Airport Triboro Bridge Passenger cars only Clearance 10'-5'' |
Exits 7A-B Union Turnpike Jackie Robinson Parkway Passenger cars only Clearance 8'-8'' |
Interboro Parkway Robert F. Kennedy Bridge |
| 6.6 | Exit 11 69th Road Jewel Avenue Harry Van Arsdale Jr Avenue |
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| 7.7 | Exit 12A EastLong Island Expressway Eastern Long Island College Pt Boulevard |
Exit 11 Flushing Meadows Corona Park 69th Road Jewel Avenue Harry Van Arsdale Ju Avenue |
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| 8.1 | Exit 12B West Long Island Expressway Midtown Tunnel |
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| 8.4 | Exit 12A To EastLong Island Expressway Eastern Long Island College Point Boulevard |
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| 9.6 | Exit 13 Northern Boulevard Astoria Boulevard Triboro Bridge |
Exits 13A-D West Astoria Boulevard West Grand Central Parkway LaGuardia Airport Northern Boulevard Citi Field Exits 13B-C - Passenger cars only |
Robert F. Kennedy Bridge |
| 10.3 | Exit 14 Linden Place |
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| 11.1 | Exit 15 20th Avenue |
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| 11.7 | Exit 16 Cross Island Parkway South Eastern Long Island Passenger cars only Clearance 9'-10'' |
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| 11.8 | Exit 17 3rd Avenue |
Exit 17 14th Avenue |
Exit number not posted southbound |
| Speed Limit 40 | Speed Limit 50 | ||
| Bronx County Borough of The Bronx |
Queens County Borough of Queens |
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| Bronx-Whitestone Bridge Toll | |||
| 13.8 | Exit 18 Ferry Point Park Lafayette Avenue |
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| 14.3 | Exit 18 Lafayette Avenue |
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| 14.6 | Exits 19N-S-W  WestNew Haven CT George Washington Bridge Manhattan |
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| 14.6 | Hutchinson River Parkway North Passenger cars only |
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| Speed Limit 40 | |||
| Bronx County Borough of The Bronx |
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