How does air traffic control work in flight simulators?

In a general-purpose flight simulator, air traffic control (ATC) uses your flight plan, aircraft position, radio frequency and airport conditions to issue clearances from taxi to landing. You receive and acknowledge instructions through menus and synthetic speech, or over voice with a live controller; realism depends mainly on which system is providing the service.

We use ATC here in the general civilian flight-simulator sense rather than one title’s exact interface. Position names, phraseology and available services vary by country, airport and simulator, but the operating sequence is broadly shared.

What happens at each ATC stage of a flight?

Each ATC stage transfers responsibility to the controller handling that part of the airport or airspace.

Smaller airports may combine several positions, while a simulator may omit positions it does not model. At an uncontrolled aerodrome there is no controller to issue taxi, take-off or landing clearance; pilots instead broadcast their position and intentions on the appropriate advisory frequency.

Built-in ATC normally reads the flight plan held by the simulator itself. A route entered only into an aircraft’s flight management system may be invisible to ATC, even though it appears correctly on the cockpit display. Across simulator generations, this mismatch is one of the most common reasons ATC assigns an unexpected route or approach.

ATC does not normally fly the aircraft. The pilot must tune the assigned frequency, set the transponder, select headings and altitudes, and manage the autopilot unless an assistance feature has been delegated to do those jobs.

How do I use flight simulator ATC from the gate to landing?

A controlled flight follows a predictable sequence: prepare the route, contact the appropriate station, acknowledge each instruction and change controller when handed off.

1. Prepare a matching flight plan. Select IFR or VFR, check the departure and destination, and make sure the simulator-level route agrees with the route in the cockpit FMS.
2. Obtain airport information. Check the weather, active runway, pressure setting and any available information broadcast before making the first call.
3. Request clearance when required. An IFR clearance commonly includes the cleared route, initial altitude and transponder code. VFR services and terminology vary more between airspace systems.
4. Contact Ground and request taxi. Follow the assigned taxiways and stop at every runway holding point or hold-short instruction. Taxi clearance does not include permission to enter or take off from a runway.
5. Contact Tower when instructed. Report ready, then wait for an explicit line-up or take-off clearance. Line up and wait is not a take-off clearance.
6. Follow hand-offs during climb and cruise. Tune the assigned frequency, contact the next controller and comply with headings, altitudes and route amendments.
7. Confirm the approach before descending. Check that the cleared runway and approach match what is loaded in the aircraft. After landing, clear the runway, contact Ground and request taxi to parking.

How do I tune the ATC radio to Ground and request taxi clearance?

Power the radios, place the airport’s Ground frequency in the active COM slot, monitor that COM channel and then select or transmit the taxi request.

1. Power the radio equipment. The battery, avionics and relevant COM radio must be on. Check the radio and communications volume as well.
2. Find the Ground frequency. Use the simulator’s airport information, ATC panel or cockpit airport data. If the airport has Clearance Delivery and you are flying IFR, contact that position first.
3. Make the frequency active. Entering it into the standby window is not enough; use the transfer control so it appears in the active field. Confirm that the audio panel is monitoring the same COM radio.
4. Request taxi. In menu-driven ATC, choose the displayed taxi option. With human ATC, a typical initial call is Ground, [callsign], at [stand], information [letter], ready to taxi.
5. Read back and follow the route. Repeat the runway, holding point, taxiways and every hold-short restriction, then move only when cleared.

If no taxi option appears, confirm that the previous clearance has been acknowledged and that you are tuned to the correct station. An airport without a Ground service will not produce a Ground clearance; use the combined controller or advisory procedure modelled by the simulator.

How do you respond to ATC in Microsoft Flight Simulator 2024?

In Microsoft Flight Simulator 2024, open the ATC or communications panel and select the displayed acknowledgement, request or contact option using your mapped PC or console controls.

1. Open the communications panel. Available calls depend on your location, flight plan, tuned frequency and previous ATC exchange.
2. Select the appropriate response. MSFS generates the spoken readback for the menu item you choose. Control bindings differ between PC, Xbox Series X|S and PlayStation 5, so there is no universal button that applies to every setup.
3. Carry out the instruction. Selecting an acknowledgement does not change the aircraft’s heading, altitude or speed unless a separate assistance feature is controlling it.
4. Complete each hand-off. Put the assigned frequency into the active radio and select the option to contact the new controller. Remaining on the old frequency can halt the ATC sequence.

Our MSFS walkthrough for clearances, frequencies and controller hand-offs covers the title-specific workflow in more detail. If radio-communication assistance is enabled, the simulator may tune and answer automatically; disable that delegation when you want to practise the exchanges yourself.

Speaking into an ordinary microphone does not operate stock menu ATC. Voice control requires compatible recognition software or a connection to human controllers; our explanation of what voice recognition can and cannot control in MSFS 2024 separates those methods.

With human ATC, read back safety-critical parts rather than replying only with Roger. For example, Taxi to holding point A1 via Alpha, hold short of runway 27, G-ABCD confirms both the route and runway restriction. Exact requirements vary by region, but our real-world radio call and readback examples explain the underlying phraseology.

Which type of ATC simulator should I use?

Choose built-in ATC for convenient solo flying, human online ATC for responsive radio practice, and a standalone ATC simulator when you want to act as the controller rather than fly the aircraft.

Taking a plane simulator online for multiplayer does not automatically provide human air traffic control. Live traffic is also not live ATC: it supplies moving aircraft data, while a controller service handles clearances and separation. Built-in ATC can sequence only the traffic recognised by its own logic.

Is online flight simulator ATC more realistic?

Human online ATC is generally more realistic because a controller can react to pilot behaviour, traffic conflicts, weather changes and unusual requests instead of following a fixed decision tree.

A typical setup requires a compatible connection client, a filed flight plan, a callsign, a microphone and a push-to-talk control. Our guide to how live online ATC connects pilots, controllers and shared traffic explains that process without confusing it with ordinary multiplayer.

Controller coverage is not guaranteed, and local AI aircraft may not be part of the network’s controlled traffic. Avoid running two independent ATC systems for the same flight: stock instructions and human instructions can conflict. Online ATC is the better choice once you can hold an assigned heading or altitude, change frequency while flying and tell a controller promptly when you are unable to comply.

Why does flight simulator ATC give no reply or bad instructions?

Missing replies and implausible instructions usually come from radio configuration, mismatched flight plans, changing weather, scenery data or limits in the simulator’s traffic logic.

• The taxi request is missing: Finish and acknowledge any required IFR clearance, tune the active Ground frequency and confirm that the airport actually has a Ground service. Some systems do not offer taxi options until the aircraft is positioned at a recognised parking stand.
• No controller replies: Check electrical and avionics power, active versus standby frequency, COM1 or COM2 selection, audio-panel monitoring and radio volume. You may also be outside the modelled station range.
• ATC text appears but no voice is heard: Inspect the simulator’s communications volume and selected audio output. Automated speech can fail independently of the ATC text and menu logic.
• ATC ignores the cockpit route: Load or import the route into the simulator’s own flight-planning system as well as the aircraft FMS. After major route changes, cancel and request a new clearance where the simulator permits it.
• The wrong runway or approach is assigned: Weather may have changed since the flight was planned. Renumbered runways, old navigation data, duplicate airport scenery and conflicting add-ons can also make the ATC database disagree with the visible airport.
• ATC repeatedly reports an altitude error: Set local pressure below the applicable transition level and the standard pressure setting above it. A wrong QNH or an inches-of-mercury versus hectopascal entry can create an apparent altitude error of hundreds of feet.
• Descent comes too late: Monitor the planned descent independently and request a lower altitude if the ATC system allows it. Do not force an unstable approach to satisfy automated instructions; go around and try again.
• Traffic becomes stuck or repeatedly goes around: Reduce AI or injected traffic density and avoid running overlapping traffic injectors. Automated runway sequencing can deadlock when more aircraft arrive than its logic can handle.

Built-in ATC is useful for practising radio flow and cockpit workload, but it is not a substitute for checking terrain, published procedures and approach stability. When an automated instruction is clearly impossible or unsafe within the simulation, reject it, request an alternative or discontinue the approach.