Houston (IAH) Terminal Map & Navigation Guide

Everything you need to navigate Houston: 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.

Where can I find the official Houston terminal map?

The IAH 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.

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.

What is in each Houston terminal?

Here is what each terminal or concourse at IAH handles — which airlines fly from it, the gate range, and key amenities to know before you go.

How do I get between terminals at Houston?

Two free automated people movers run in parallel. The Skyway is an elevated airside tram (within security) with 4 stations: Terminal A, Terminal B, Terminal C, and Terminal D/E - it departs every 2 minutes and is the primary inter-terminal connection for ticketed passengers. The Subway is an underground landside train (outside security/pre-checkpoint) with stations at Terminals A, C, D/E, and the Airport Marriott - it departs every 3 minutes and operates 3:15 am to 12:15 am daily. Terminal B is the only terminal NOT served by the Subway; it connects landside only by walking to Terminal A.

How do I find my gate at Houston?

Terminal B (United Express) has no landside Subway stop and no gate-level food - grab a meal in the main Terminal B check-in hall or in Terminal A before heading to your pier. For all airside connections across the airport, skip walking and take the free Skyway tram (every 2 min), which runs 24/7 and links all five terminals.

A few habits that prevent last-minute sprints:

• Open your airline app two hours before departure. Gate assignments update in the app before they appear on printed boarding passes and sometimes before terminal displays are updated.
• Check departure screens immediately after clearing security. Every terminal at IAH has overhead departure boards near the checkpoint exit — confirming your gate here costs 30 seconds and can save a long detour.
• Note which security checkpoint serves your concourse. At multi-concourse airports, entering through the wrong checkpoint can mean exiting security and re-queuing, which adds 20 minutes or more.
• International arrivals follow the customs signs first. If you are connecting from an international arrival, clear U.S. Customs and Border Protection before looking for your domestic connection gate — the process is one-way.

What is the easiest way to navigate Houston?

Experienced travellers at IAH use a short checklist every time:

• Review the map before leaving home. Open the Houston interactive map on your phone while you are still home so the terminal layout is familiar.
• Know your terminal before you arrive. At airports with multiple separate buildings (JFK, LAX, DTW, MSP) confirm your terminal from your boarding pass — rideshare and taxi drivers need the correct terminal to drop you at the right curb.
• Use automated people-movers instead of walking. At large airports with trains (ATL Plane Train, DFW Skylink, DEN AGTS) a single train ride replaces 20–30 minutes of walking. Look for signs to the train immediately after clearing security.
• Follow colour-coded signage. Most airports (TPA Blue/Red, SEA North/South Satellite, PHX T3/T4) use colour or number coding from curbside through gates — picking the right colour zone at check-in means you do not cross the terminal twice.
• Check the live TSA wait before you leave. Knowing the current security wait at IAH lets you time your departure so you arrive at the gate relaxed, not sprinting.

Common questions about Houston maps