KSFB Orlando Sanford International — Instrument Checkride Guide

What kind of airport is KSFB and what is its IFR environment?

Orlando Sanford International Airport (KSFB) is located in Sanford, Florida, 16 nm northeast of Orlando at 54 ft MSL. The airport occupies approximately 3,000 acres and operates four runways, making it one of the larger general aviation and secondary commercial airports in the Central Florida region. Its Class C airspace designation reflects regular charter, cargo, and airline operations alongside significant GA traffic.

KSFB serves as the alternate in the Central Florida triad scenario (ORL–DAB–SFB), which is routed through the busy Orlando-area airspace corridor. Sanford Approach handles IFR arrivals and departures on 125.225 MHz (south sector) and 135.3 MHz (north sector). ATIS broadcasts on 125.975 MHz. Tower operates on 120.3 and 135.25 MHz; Ground is 121.35 MHz; Clearance Delivery is 123.975 MHz. Under 14 CFR 91.130, two-way radio communication with approach control is required before entering Class C airspace.

KSFB's proximity to Orlando International (KMCO) — approximately 14 nm to the south-southwest — creates an airspace coordination challenge for IFR operations. Southbound departures from KSFB may be vectored around the KMCO Class B structure, and pilots should expect altitude restrictions designed to keep them out of KMCO arrivals until clear of the Class B floor.

What instrument approaches are published at KSFB?

KSFB has ILS approaches to 3 runway ends and RNAV (GPS) coverage of 5 runway ends, sourced from SkyVector current chart listings.

Always verify current minimums on official FAA charts. Runway 18/36 has no ILS — RNAV (GPS) RWY 18 is the only instrument approach to runway 18 and RNAV approaches serve runway 27L where no ILS is published. Runway 36 has no published instrument approach.

What is the runway configuration at KSFB?

KSFB operates 4 runways covering multiple compass directions. The primary instrument runway is 09L/27R at 11,002 ft, which provides the full ILS on both ends.

The 11,002-ft primary runway provides ample length for any GA aircraft on an instrument checkride. Runway 09C/27C is a short parallel and has no published instrument approach. Runway 36 has no published instrument approach — a detail that matters when the DPE asks you to select an approach for a northbound arrival.

What weather should instrument pilots expect at KSFB?

Central Florida's summer weather pattern is the defining IFR challenge at KSFB. From June through September, the sea-breeze convergence zone — where Atlantic and Gulf sea breezes collide over the interior — produces widespread afternoon thunderstorm development, typically beginning around 1300–1400 local and peaking by 1500–1700. These storms form quickly, move unpredictably, and can cover an airport that was VFR 30 minutes earlier. The triad scenario notes explicitly: "afternoon thunderstorm potential, busy airspace near MCO" — this is not a generic weather note, it is a daily operational reality during Florida summer.

Pilots planning afternoon departures or arrivals at KSFB in summer should obtain NEXRAD, SIGMET, and convective outlook data before departure and have a weather-abort plan briefed before entering IMC. The NWS Melbourne (MLB) office issues Convective SIGMETs and METARs for the Central Florida area.

Winter and spring bring a different, milder pattern. Morning coastal fog can reduce visibility below IFR minimums from December through March, particularly after cold frontal passage when temperatures drop near the dew point overnight. These fog events typically clear by 1000–1100 local as solar heating increases. PIREPs from Orlando Executive (KORL) and Daytona Beach (KDAB) provide useful supplemental ground truth for fog coverage.

The KMCO proximity adds a planning layer: when convective weather grounds operations at KMCO, its high traffic volume creates pressure on surrounding airspace. Expect ground delays and holding when KMCO goes IFR — SA approach at KSFB may inherit rerouted traffic.

What should you expect on an instrument checkride at KSFB?

A checkride at KSFB gives the DPE multiple evaluation levers: Class C airspace compliance, proximity-airspace awareness near KMCO, a weather avoidance decision in the convective-heavy summer environment, and approach selection from a 4-runway airport with asymmetric instrument coverage.

Class C airspace entry under 14 CFR 91.130 is the first evaluation point. The DPE will expect you to know that two-way radio contact (not a clearance) is required before entering Class C — and that this is satisfied when Sanford Approach responds with your call sign. A response like "Aircraft calling Sanford Approach, stand by" does NOT satisfy the requirement because the controller has not used your call sign.

The ILS RWY 27R is the primary DPE approach given its 11,002-ft runway and full precision guidance. The DPE may set up an approach from the northeast, transitioning you through the Sanford Class C before vectoring you for the ILS. Expect a full approach briefing to be completed while simultaneously complying with ATC instructions — the DPE is specifically evaluating task management and workload prioritization as defined in ACS Area I.

KMCO proximity creates a testable Class B question. Most southbound departures from KSFB will require altitude restrictions that keep you below the KMCO Class B floor. If ATC assigns you a heading that would take you into Class B without an explicit clearance, you are expected to query ATC — not assume the clearance is implicit in the routing. Under 14 CFR 91.131, Class B entry without clearance is a regulatory violation.

A missed approach at KSFB means climbing back into the Class C environment and coordinating with Sanford Approach for either a second approach or an alternate. The DPE will evaluate whether you execute the missed approach immediately at DA without the required visual references under 14 CFR 91.175(e) and whether your radio call is precise and immediate.

Practice Questions

1. You are on final for the ILS RWY 27R at KSFB. Sanford Approach says "Aircraft N12345, be advised, IFR conditions at KSFB, ceiling 200 overcast, visibility 1/2 mile." You have the published minimums. What do you do, and what visual references must you have before descending below DA under 14 CFR 91.175(c)?

2. You are departing KSFB southbound on an IFR clearance. ATC assigns you 3,000 ft MSL. You see on your sectional that the KMCO Class B floor in your route of flight is 3,000 ft. Are you in Class B airspace? What FAR governs this?

3. Sanford Approach responds to your initial call with "Aircraft calling, stand by." Are you authorized to enter the Class C airspace? Explain the specific requirement under 14 CFR 91.130.

4. The DPE assigns you the RNAV (GPS) RWY 18 approach. Your avionics show LPV guidance is available. How does flying to an LPV decision altitude differ from flying to an ILS decision altitude in terms of guidance source, precision, and applicable regulations?

5. You are planning KORL to KDAB with KSFB as your alternate in summer. The afternoon forecast for KSFB shows a broken ceiling at 1,500 ft with isolated embedded thunderstorms. Is KSFB a legal alternate? What weather criteria does 14 CFR 91.169 require for a precision-approach alternate?

Frequently Asked Questions

Q: What instrument approaches are published at KSFB?

KSFB publishes ILS or LOC approaches to runways 09L, 09R, and 27R, plus RNAV (GPS) approaches to runways 09L, 09R, 18, 27L, and 27R. There is no ILS published for runways 18, 36, or 27L. Data sourced from SkyVector current chart listings.

Q: What airspace class is KSFB?

KSFB operates within Class C airspace. Under 14 CFR 91.130, two-way radio communication with approach control is required before entering Class C. Orlando Sanford Approach handles IFR traffic on 125.225 MHz (south) and 135.3 MHz (north).

Q: What is the ATIS frequency at KSFB?

KSFB ATIS broadcasts on 125.975 MHz. Sanford Tower operates on 120.3 and 135.25 MHz. Ground Control is on 121.35 MHz. Approach/Departure operates on 125.225 (south) and 135.3 (north) MHz. Clearance Delivery is on 123.975 MHz.

Q: How close is KSFB to Orlando International (KMCO)?

KSFB is located 16 nm northeast of Orlando and approximately 14 nm north-northeast of KMCO. Operations in the KSFB terminal area require coordination with both Sanford Approach and Orlando Approach (KMCO), particularly for southbound departures that may transit the KMCO Class B structure.

Q: What weather hazards affect KSFB?

Central Florida's afternoon convective pattern is the dominant IFR hazard at KSFB. From June through September, sea-breeze convergence zones trigger widespread thunderstorm development by early afternoon, frequently reaching the airport by 1400–1600 local. Summer checkrides at KSFB often require weather avoidance decisions. Morning coastal fog is an occasional winter and spring hazard.

Q: What is the longest runway at KSFB?

Runway 09L/27R is 11,002 ft × 150 ft — the primary instrument runway and the longest at KSFB. It is the only runway with a published ILS on both the 09L and 27R ends. Runway 09R/27L is 5,839 ft and Runway 18/36 is 6,002 ft.

Sources

• SkyVector — KSFB Instrument Approach Procedures
• 14 CFR 91.130 — Operations in Class C Airspace (Cornell LII)
• 14 CFR 91.131 — Operations in Class B Airspace (Cornell LII)
• 14 CFR 91.169 — IFR Flight Plan: Information Required (Cornell LII)
• 14 CFR 91.175 — Takeoff and Landing Under IFR (Cornell LII)
• FAA Instrument Flying Handbook FAA-H-8083-15B
• NWS Melbourne (MLB) — Convective SIGMETs and TAFs

This article was researched from FAA primary sources (ACS, FAR/AIM, Advisory Circulars, Instrument Flying Handbook), approach procedure data from SkyVector, and citing current 14 CFR Part 91 — drafted by MockDPE Editorial Team. Last updated: May 2026. If you spot an inaccuracy, email corrections@mockdpe.org.