Ontario International (KONT) radio calls

Towered airport with a Class C surface area

Sample calls at KONT

Ontario International has a Class C surface area: establish two-way communication with the approach control before entering, and keep it (AIM 3-2-4 c 3). A reply with your call sign, even "standby", establishes it. The calls below use runway 08L; the tower assigns the runway in use on the day.

The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.

1. There is no ATIS frequency in the FAA data for this airport, so ask Ground for the numbers on your first call: they will give the runway, wind and altimeter.
2. YouOntario Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
3. ATCCessna Six Zero Foxtrot, Ontario Clearance, maintain VFR at or below two thousand five hundred, departure frequency one two seven point zero, squawk four six one two.
4. YouAt or below two thousand five hundred, departure one two seven point zero, squawk four six one two, Cessna Six Zero Foxtrot.
5. YouOntario Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
6. ATCCessna Six Zero Foxtrot, Ontario Ground, runway zero eight left, taxi via Alpha, hold short of runway zero eight left.
7. YouRunway zero eight left, taxi via Alpha, hold short of runway zero eight left, Cessna Six Zero Foxtrot.
8. The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
9. YouOntario Tower, Cessna Six Zero Foxtrot, holding short runway zero eight left, ready for departure, northbound.
10. ATCCessna Six Zero Foxtrot, Ontario Tower, runway zero eight left, cleared for takeoff.
11. YouRunway zero eight left, cleared for takeoff, Cessna Six Zero Foxtrot.
12. ATCCessna Six Zero Foxtrot, contact SoCal Approach one two seven point zero.
13. Youone two seven point zero, Cessna Six Zero Foxtrot.
14. YouSoCal Approach, Cessna Three One Six Zero Foxtrot, two thousand climbing four thousand five hundred, request VFR flight following to the north.
15. ATCCessna Six Zero Foxtrot, SoCal Approach, radar contact, altimeter three zero zero one.
16. YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
17. Inbound: call the approach control before the Class C boundary; a reply with your call sign establishes communication and you may enter (AIM 3-2-4 c 3).
18. YouSoCal Approach, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand five hundred, squawking one two zero zero, with Information Bravo, landing Ontario, request Class Charlie service.
19. ATCCessna Six Zero Foxtrot, SoCal Approach, squawk four six one two, ident.
20. YouSquawk four six one two, ident, Cessna Six Zero Foxtrot.
21. ATCCessna Six Zero Foxtrot, radar contact, altimeter three zero zero one, contact Ontario Tower one two zero point six.
22. YouAltimeter three zero zero one, one two zero point six, Cessna Six Zero Foxtrot.
23. YouOntario Tower, Cessna Six Zero Foxtrot, five miles north, three thousand, with Bravo.
24. ATCCessna Six Zero Foxtrot, Ontario Tower, enter left downwind runway zero eight left, report midfield downwind.
25. YouEnter left downwind runway zero eight left, report midfield, Cessna Six Zero Foxtrot.
26. YouOntario Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway zero eight left.
27. ATCCessna Six Zero Foxtrot, runway zero eight left, cleared to land, wind two seven zero at eight.
28. YouRunway zero eight left, cleared to land, Cessna Six Zero Foxtrot.
29. The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
30. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Ontario Ground one two one point niner.
31. YouExit next taxiway, one two one point niner, Cessna Six Zero Foxtrot.
32. YouOntario Ground, Cessna Six Zero Foxtrot, clear of runway zero eight left, taxi to the ramp.

If things change. The tower operates 24 hours. If you cannot raise it, check the frequency and volume, then squawk 7600, remain outside the Class D until you have the traffic flow, and watch for light signals (AIM 4-2-13).

Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-4 c 3. What TowerTalk grades against →

The calls you will make here

• How to call Ground for taxi →
• Calling the tower inbound →
• Line up and wait, cleared for takeoff, cleared to land →
• Class C airport radio calls →
• How to request VFR flight following →

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