Ontario International Airport Map (Most Up-To-Date)
Ontario International Airport (ONT) spreads passengers across three disconnected landside nodes—Terminal 2, Terminal 4, and the separate International Arrivals Terminal—wrapped by a one-way loop (East Airport Drive) that favors cars over pedestrians. The footprint is wide and low-rise, with Terminal 2 encountered first on the main loop and Terminal 4 downstream past a confusing parking/rental split. Within Southern California’s Inland Empire air hub, curb islands and a vertical security core in Terminal 4 drive most wayfinding stress.
Map Table
| Terminal Zone | Key Nodes | Primary Function | Connection Mode |
|---|---|---|---|
| Terminal 2 | TSA, Gates 200s, Central concessions | Domestic departures/arrivals | Walk; landside shuttle |
| Terminal 4 | Split-level ticketing, TSA upstairs, Islands 1–2 | Domestic departures/arrivals | Walk; landside shuttle |
| International Arrivals Terminal | Single exit curb, arrivals processing | International arrivals | On-demand shuttle; rideshare |
Ontario International Airport Map Strategy
- Treat ONT as “three islands”: Terminal 2, Terminal 4, and International Arrivals do not connect airside, so any transfer means exiting and re-clearing TSA.
- On the loop road, prioritize terminal commitment early: stay centered/left to bypass the Terminal 2 drop-off, then move aggressively right immediately after Terminal 2 to catch the Terminal 4 curb slip.
- At Terminal 4, memorize the landside nodes: Inner Curb for quick drop-off, Island 1 for rideshare pickup, Island 2 for inter-terminal and rental car shuttles.
- Plan for TSA surge geometry: Terminal 4 security is upstairs via a single central escalator/stair core, and overflow can back down to Level 1 along the back wall, creating choke points right where passengers enter from curb doors.
2026 Ontario International Airport Map + Printable PDF
Active operations at ONT continue to revolve around the same high-friction geometry: Terminal 2 and Terminal 4 remain fully separated landside-only, and the International Arrivals Terminal still behaves like a satellite node. The 2026 map is most valuable for two moments that break trips: the post–Terminal 2 roadway split that can bypass Terminal 4 entirely, and the Terminal 4 vertical funnel where TSA lines can spill into Level 1.
Ontario International Airport International Arrivals Terminal Level 1 Map 2026
Ontario International Airport Terminal 1 Map 2026
Ontario International Airport Terminal 2 Level 1 Map 2026
Ontario International Airport Terminal 2 Level 2 Map 2026
Ontario International Airport Terminal 4 Level 1 Map 2026
Ontario International Airport Terminal 4 Level 2 Map 2026
2026 Ontario International Airport Map Guide
What is the exact driving path from I-10 airport exits to Terminal 4 departures drop-off, including the final turn(s) where drivers commonly end up wrong?
The dealbreaker is the post–Terminal 2 roadway split where drivers who stayed too far left get trapped into parking/rental-car through lanes and miss the Terminal 4 curb, forcing a recirculation loop. From I-10, take the Archibald Ave exit, go south to the airport entrance, then turn right onto E. Airport Dr to enter the one-way terminal loop. Pass the Terminal 2 complex without turning into its drop-off, staying center-left to avoid the Terminal 2 slip. Immediately after clearing the Terminal 2 merge zone, move decisively to the right-side lanes so you can take the sharp right deviation into Terminal 4 Departures/airlines curb (signed for American, Southwest, Hawaiian). The common wrong move is “avoiding Terminal 2” by staying far left too long; those left lanes peel toward Parking/Rental Car Return and bypass the Terminal 4 curb ramp entirely.
What is the exact walking distance (feet/meters) from the Terminal 4 curbside drop-off to the Terminal 4 TSA checkpoint entrance?
Walking is about 350–400 feet (roughly 107–122 meters) from the Terminal 4 curb drop-off to the TSA document-check entrance, using the standard path through the ticketing lobby and up the central vertical core. The path starts at the Inner Curb doors into the Level 1 lobby, continues across the lobby toward the central escalator/stair bank between the American and Southwest counter areas, then goes up to Level 2 and forward to the TSA podiums. The distance swings toward the low end if you’re dropped near the central doors, and toward the high end if you’re dropped at the far ends of the curb and must backtrack to the middle.
Where is the official inter-terminal shuttle stop at Terminal 4 (exact curb zone/door number/side), as shown on the airport map?
The inter-terminal shuttle stop at Terminal 4 is on the outer shuttle island, not on the Inner Curb by the terminal doors. It boards from Island 2 (the second median/outer island) in the Terminal 4 curb complex—the same outer-island zone used by multiple shuttles—so you must cross the Inner Curb lane and the first island area to reach it. On the curb, follow the “Inter-Terminal Shuttle” placard/signage on Island 2 (distinct from rideshare on Island 1 and separate from the rental car branding).
Where is the official inter-terminal shuttle stop at the International Arrivals Terminal, and what is the shortest mapped path from baggage claim exit to that stop?
The inter-terminal shuttle stop at the International Arrivals Terminal is directly curbside in front of the terminal’s single public exit on International Way. After exiting baggage claim and customs, continue straight to the only main doors to the outside curb, then stop at the signed shuttle pickup on the curb line immediately in front of that exit. The key operational constraint is that this shuttle can behave like on-demand service, so the curbside stop is the correct node even when no bus is present, and the request protocol may be required at that location.
What is the exact outdoor walking route (sidewalk-by-sidewalk) from the International Arrivals Terminal to Terminal 4, and how many minutes is it at normal walking speed?
Walking is about 0.7 miles and typically takes 15–25 minutes with luggage, and the route is hostile enough that the shuttle or a rideshare is the practical choice. Exit the International Arrivals Terminal at 2222 International Way, then walk east on the International Way sidewalk until you reach the intersection with E. Airport Dr. Turn right (south) to meet E. Airport Dr, then follow the perimeter sidewalk toward the Terminal 4 complex, staying on the pedestrian edge past the administration/parking frontage until you reach the Terminal 4 east-end curb area. The non-obvious failure point is the transition onto E. Airport Dr, where wide driveway aprons and high-speed traffic make “which side” and “where the sidewalk continues” feel unclear.
What is the exact outdoor walking route from Terminal 2 to Terminal 4 that avoids dead-ends/road crossings, and what is the mapped distance?
Walking is about 0.25–0.3 miles (roughly 1,300–1,600 feet) if you stay on the perimeter sidewalk along E. Airport Dr instead of cutting through parking lots. Start at Terminal 2’s lower-level baggage claim exit, turn right (east), and continue past the Terminal 2 service/loading frontage until you meet the public sidewalk that runs parallel to the loop road. Stay on that sidewalk as you pass the parking lot driveways for Lot 3, continuing straight until the sidewalk feeds into the Terminal 4 approach/curb area. The dead-end trap is trying to shortcut through Lot 3, where fencing and stall rows force backtracking; the only reliable line is the street-edge sidewalk.
Where are the Terminal 2 and Terminal 4 TSA entrances located relative to each other, and what is the shortest mapped re-entry path if you accidentally clear TSA in the wrong terminal?
No airside connection exists between Terminal 2 and Terminal 4, so clearing TSA in the wrong terminal requires exiting landside and re-clearing security at the other building. Terminal 2’s TSA entrance is on its departures level in the compact pre-security core, while Terminal 4’s TSA entrance is upstairs on Level 2, reached via the central escalator/stair bank in the middle of the Level 1 ticketing lobby (between the American and Southwest counter areas). The shortest recovery path is: exit the sterile area back down to the public side (follow signs to baggage claim/exit), leave the terminal to the curb, then take the inter-terminal shuttle from the outer shuttle island (Island 2) or walk the E. Airport Dr perimeter sidewalk to the other terminal, and enter that terminal’s TSA from its main departures lobby. The practical penalty is the second screening, not the distance.
Where does the TSA line physically overflow during peak periods in Terminal 4 (which level/which corridor), based on the building layout map?
The overflow pushes down from Level 2 into the vertical core and can snake into Level 1 along the back wall of the ticketing lobby. At Terminal 4, the TSA queue first fills the Level 2 stanchion area near the checkpoint, then backs up along the corridor that connects the escalator landing to the document-check podiums. When Level 2 saturates, the queue spills down the escalators/stairs, and agents may hold people at the bottom to prevent overcrowding upstairs. In the worst surges, the line wraps through Level 1’s ticketing lobby along the rear wall opposite the curb-entry doors, creating cross-traffic where arriving passengers must cut through the security line to reach airline counters.
What is the exact location of the “bottom of stairs” choke point where PreCheck traffic gets mixed, and what is the mapped bypass route (if any)?
The choke point is at the base of Terminal 4’s central escalator and stair bank in the middle of the Level 1 ticketing lobby, roughly between the American Airlines counter zone (east side) and the Southwest counter zone (west side). PreCheck mixing happens here because separation often doesn’t occur until the top landing on Level 2, so General passengers can physically block the escalator/stairs before any lane split is visible. A reliable bypass route is not present for able-bodied travelers: the adjacent elevators exist, but they are typically consumed by strollers, wheelchairs, and heavy luggage and don’t function as a predictable “fast lane” around the escalator crush.
Where is the Rental Car Center shuttle pick-up point at Terminal 4, and what is the shortest mapped path from baggage claim to that stop?
The Rental Car Center shuttle pick-up at Terminal 4 is on Island 2 (the outer shuttle island/second median), not at the Inner Curb by the terminal doors. From Terminal 4 baggage claim, exit to the curb, cross the active Inner Curb lane, continue across the first island area, cross the next traffic lane, and wait on Island 2 under the purple/branded rental car shuttle signage. The main landmark is that Island 1 is the rideshare island; you keep going one more island outward to reach the shuttle island used by rental car and other buses.
Where is the fastest mapped route from Terminal 4 arrivals to on-airport rental cars (walk vs shuttle decision point), including where the walk becomes non-obvious?
The dealbreaker is that walking turns unsafe and non-obvious at the Haven Avenue interchange area, so the fastest mapped route is the Rental Car Center shuttle from Terminal 4’s outer shuttle island. From Terminal 4 arrivals/baggage claim, go out to the curb, cross to Island 2 (second median) and board the purple/branded rental car shuttle to the Rental Car Center (3450 E. Airport Dr). The walk-vs-shuttle decision point is right at the curb: the shuttle node is clear once you commit to Island 2, but the walking path quickly degrades once you leave the terminal loop because it requires negotiating high-speed turning traffic and discontinuous pedestrian edges near Haven Ave.
Inside Terminal 2, what is the mapped location of food options post-security, and what is the shortest walking distance from TSA to the nearest hot-food vendor?
Food options post-security in Terminal 2 cluster immediately beyond the TSA checkpoint in the Gates 204–209 area, with the nearest hot-food option essentially right there. Rock & Brews is near Gate 208, Cross Grain Brewhouse is near Gate 209, Pizza Vino and Einstein Bros. Bagels are near Gate 205. The shortest walk from TSA recomposure benches to the nearest hot food (Rock & Brews) is under about 100 feet, with the main landmark being that the dining node is visible almost immediately after you clear the checkpoint.
What is the exact curbside pickup geometry at Terminal 4 (islands/lane order), and where is the best mapped “low-chaos” pickup spot to avoid wrong-side confusion?
Terminal 4 uses a multi-island curb with parallel lanes: the Inner Curb lane directly beside the terminal for active private drop-offs, then Island 1 (first median) commonly used for rideshare/TNC pickup, then another travel lane, then Island 2 (second median/outer island) used for shuttles (including inter-terminal and rental car), with outer through/recirculation lanes beyond. The lowest-chaos strategy is to use the far west end of the Inner Curb near the Southwest Airlines side, where space is typically less congested than the east-end entry crush and where merging back into traffic is easier at the downstream taper. The main wrong-side confusion comes from stopping early at the first available curb space (east end), which concentrates vehicles and forces pedestrians to cross active lanes to reach Island 1 or Island 2.
What is the mapped location of the International Arrivals exit relative to Terminal 4, and which curb segment is closest for a rideshare pickup without crossing traffic?
The International Arrivals Terminal exit is on a separate spur at 2222 International Way, west of the main Terminal 2/Terminal 4 loop, so it is not adjacent to Terminal 4’s island curb system. Rideshare pickup at International Arrivals is curbside directly in front of the terminal, and the closest low-conflict pickup spot is the curb area just east (downstream) of the taxi stand on that same linear curb. Because the International Arrivals curb is a single roadway without islands, choosing the downstream curb segment avoids weaving across active terminal-loop lanes and lets drivers exit back toward Archibald more cleanly than routing into the main terminal loop.
