Everything you need to navigate Milwaukee: 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 MKE 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
Milwaukee 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 MKE handles — which airlines fly from it, the gate range, and key amenities to know before you go.
Gates C9–C25. Serves Southwest Airlines, United Airlines, and Sun Country Airlines. Upper level gates. Southwest is the dominant carrier in this concourse.
Gates D27–D56. Serves Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, JetBlue Airways, and Spirit Airlines. Upper level gates. All other major carriers are consolidated here. New Concourse E (international) is under construction with an expected late 2027 opening.
Internal corridor via central atrium — ticketing is on the lower level and security plus all gates are on the upper level. One consolidated checkpoint on the upper level serves both Concourses C and D.
Timing tip
Always allow 15–30 minutes for any inter-terminal transfer at MKE — 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.
Budget time for the escalator or elevator from lower-level ticketing to upper-level security, especially if traveling with strollers or oversized carry-ons. CLEAR enrollment kiosks are on-site (Sun–Thu 6 AM–6 PM, Fri–Sat 6 AM–5:30 PM) — you can enroll same-day before joining the queue. New Concourse E construction (late 2027 opening) does not disrupt current checkpoint operations but may affect wayfinding signage.
A few habits that prevent last-minute sprints:
Experienced travellers at MKE use a short checklist every time:
The official Milwaukee terminal map is on the airport authority website at https://www.mitchellairport.com/airport-guide/interactive-terminal-guide. Maps are updated when new gates or concourses open; always verify your specific gate on your boarding pass.
Internal corridor via central atrium — ticketing is on the lower level and security plus all gates are on the upper level. One consolidated checkpoint on the upper level serves both Concourses C and D.
Budget time for the escalator or elevator from lower-level ticketing to upper-level security, especially if traveling with strollers or oversized carry-ons. CLEAR enrollment kiosks are on-site (Sun–Thu 6 AM–6 PM, Fri–Sat 6 AM–5:30 PM) — you can enroll same-day before joining the queue. New Concourse E construction (late 2027 opening) does not disrupt current checkpoint operations but may affect wayfinding signage. 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.mitchellairport.com/airport-guide/interactive-terminal-guide before you arrive to familiarise yourself with the layout. Budget time for the escalator or elevator from lower-level ticketing to upper-level security, especially if traveling with strollers or oversized carry-ons. CLEAR enrollment kiosks are on-site (Sun–Thu 6 AM–6 PM, Fri–Sat 6 AM–5:30 PM) — you can enroll same-day before joining the queue. New Concourse E construction (late 2027 opening) does not disrupt current checkpoint operations but may affect wayfinding signage.
Concourse C: Gates C9–C25. Serves Southwest Airlines, United Airlines, and Sun Country Airlines. Upper level gates. Southwest is the dominant carrier in this concourse. Concourse D: Gates D27–D56. Serves Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, JetBlue Airways, and Spirit Airlines. Upper level gates. All other major carriers are consolidated here. New Concourse E (international) is under construction with an expected late 2027 opening.
Leave-By calculator
The TSA Wait Times Leave-By calculator folds the live MKE 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 MKE TSA wait times · MKE terminals guide · MKE security tips