Everything you need to navigate Tri-Cities: the official terminal map link, what airlines fly from each concourse, how to move between terminals, and gate-finding tips that save you backtracking. Verify your specific gate on your boarding pass — assignments change.

The PSC airport authority publishes the most up-to-date map on its official website. Use the link below before you travel so you know the terminal layout and gate locations before you clear security.
Official map
Tri-Cities official terminal map — airport authority website
Maps are updated when terminals are renovated or new concourses open. Terminal 5 at LAX, for example, has been closed since October 2025 for reconstruction — always confirm your terminal from your boarding pass rather than relying on a saved map.
Here is what each terminal or concourse at PSC handles — which airlines fly from it, the gate range, and key amenities to know before you go.
Tri-Cities Airport has a single, single-level terminal following a $42 million renovation completed in January 2017. The West Concourse (opened September 2015) holds Gates 3, 4, and 5; the East Concourse (completed in the 2017 renovation) holds Gates 1 and 2. Alaska/Horizon Air, Delta Air Lines, United Express, American Eagle, and Allegiant Air all operate from these five gates. Ticketing counters, the single TSA checkpoint, and baggage claim are all on the same level, and the whole terminal can be crossed on foot in just a few minutes.
No inter-terminal transport is needed — PSC is one compact terminal, and both concourses (East, Gates 1–2, and West, Gates 3–5) are reached on foot from the same central ticket lobby and security checkpoint, typically a 1–3 minute walk to any gate.
Timing tip
Always allow 15–30 minutes for any inter-terminal transfer at PSC — wait times for people-movers, buses, or security re-screening add up faster than the physical distance suggests. Build the buffer into your Leave-By time, not your gate arrival time.
Because PSC has only one terminal and one TSA checkpoint, there are no terminal transfers to plan for — check in, clear the single security checkpoint, and walk directly to your gate. Build in extra time only during the 6–9 AM and 4–6 PM peak banks, when the single checkpoint queue is longest.
A few habits that prevent last-minute sprints:
Experienced travellers at PSC use a short checklist every time:
The official Tri-Cities terminal map is on the airport authority website at https://www.flytricities.com/interact/airport-map. Maps are updated when new gates or concourses open; always verify your specific gate on your boarding pass.
No inter-terminal transport is needed — PSC is one compact terminal, and both concourses (East, Gates 1–2, and West, Gates 3–5) are reached on foot from the same central ticket lobby and security checkpoint, typically a 1–3 minute walk to any gate.
Because PSC has only one terminal and one TSA checkpoint, there are no terminal transfers to plan for — check in, clear the single security checkpoint, and walk directly to your gate. Build in extra time only during the 6–9 AM and 4–6 PM peak banks, when the single checkpoint queue is longest. Your boarding pass shows the exact gate. Open your airline app about two hours before departure — gate assignments sometimes change after check-in closes. Look for departure boards throughout the terminal for real-time gate information.
Use the official interactive map at https://www.flytricities.com/interact/airport-map before you arrive to familiarise yourself with the layout. Because PSC has only one terminal and one TSA checkpoint, there are no terminal transfers to plan for — check in, clear the single security checkpoint, and walk directly to your gate. Build in extra time only during the 6–9 AM and 4–6 PM peak banks, when the single checkpoint queue is longest.
Main Terminal (Gates 1–5): Tri-Cities Airport has a single, single-level terminal following a $42 million renovation completed in January 2017. The West Concourse (opened September 2015) holds Gates 3, 4, and 5; the East Concourse (completed in the 2017 renovation) holds Gates 1 and 2. Alaska/Horizon Air, Delta Air Lines, United Express, American Eagle, and Allegiant Air all operate from these five gates. Ticketing counters, the single TSA checkpoint, and baggage claim are all on the same level, and the whole terminal can be crossed on foot in just a few minutes.
Leave-By calculator
The TSA Wait Times Leave-By calculator folds the live PSC security wait, your drive time, and terminal navigation into one exact time to leave home — so you reach your gate without guessing.
See also: Live PSC TSA wait times · PSC terminals guide · PSC security tips