What is a composite flight plan?

A composite flight plan is a single flight plan that combines an IFR segment and a VFR segment for the same flight, filed with ATC before departure. For example, a pilot might fly IFR to a certain fix or airport and then continue VFR to the final destination. The AIM describes composite flight plans and requires pilots to file the appropriate portion with the FSS or ATC facility responsible for each segment.

How do you cancel IFR and transition to VFR on a composite flight plan?

When transitioning from the IFR segment to the VFR segment, the pilot must cancel the IFR flight plan with ATC before or upon reaching the clearance limit or the point where VFR flight begins, while remaining in VFR conditions and able to remain clear of clouds. The pilot should contact the controlling ATC facility directly to cancel IFR, or relay the cancellation through FSS if not in direct contact; simply not checking in does not constitute a proper cancellation and can trigger search-and-rescue procedures. After canceling IFR, the pilot becomes solely responsible for VFR cloud clearance, visibility requirements, and terrain separation for the remainder of the flight.

What's the difference between a composite flight plan and a combination flight plan?

A composite flight plan specifically refers to a plan that includes one IFR segment and one VFR segment filed together, with the IFR portion activated first and the VFR portion beginning after the IFR cancel point. A combination flight plan is sometimes used informally to describe similar hybrid filings, but the FAA's AIM uses "composite flight plan" as the official term for this IFR-then-VFR (or VFR-then-IFR) arrangement. Pilots preparing for the Instrument Rating Airplane Airman Certification Standards should understand that both segments carry distinct regulatory responsibilities regarding ATC communication and airspace compliance.

Composite Flight Plan Rules IFR to VFR

When a flight consists of one portion flown under instrument flight rules and another under visual flight rules, a pilot may file a composite flight plan — a single filing that captures both segments. This practice is common when a pilot departs under IFR through a cloud layer, levels off in visual conditions, and then continues under VFR to a destination that doesn't warrant a full IFR clearance. While composite flight plans are a legitimate and useful tool, they carry specific procedural responsibilities that the FAA tests heavily. Understanding exactly when IFR services end, who cancels what, and what happens if you forget to close is essential for both the instrument rating knowledge test and real-world IFR operations.

The governing guidance for composite flight plans is found in the Aeronautical Information Manual (AIM), which describes how pilots file, activate, and close each segment. The rules exist because ATC must know precisely when you are — and are not — operating under instrument flight rules. Failure to properly transition from IFR to VFR can leave an open IFR flight plan, trigger unnecessary search-and-rescue operations, or result in flight through Class A airspace without a clearance.

How a Composite Flight Plan Is Filed

A composite flight plan is filed on a single FAA flight plan form, but the two segments are treated as distinct operational phases. The pilot designates the flight as composite in the flight plan type block. The IFR portion is filed to the point where the transition to VFR will occur, and the VFR portion continues from that transition point to the final destination.

In practice, the pilot files the flight plan through a Flight Service Station (FSS) or an electronic filing system, clearly indicating the changeover point — the fix, VOR, airport, or waypoint where the pilot intends to cancel IFR and proceed under VFR. FSS then coordinates with the appropriate ARTCC or TRACON so that IFR separation services are provided only through the designated changeover point. The VFR leg is logged as a separate VFR segment, and FSS opens and monitors the VFR portion independently once the pilot transitions.

The Critical Transition: Canceling IFR

This is the point where most confusion — and most FAA test questions — arise. When a pilot on a composite flight plan reaches the IFR-to-VFR changeover point, they must cancel their IFR flight plan with ATC before proceeding under VFR. This is not optional, and it does not happen automatically. The pilot must make an explicit cancellation call.

The exact procedure depends on whether the pilot is in contact with ATC (an ARTCC center or approach control) or not. In many composite flight plan scenarios, the pilot is in radar contact and calls ATC, states their intentions to cancel IFR, and confirms they are in VFR conditions and able to remain clear of clouds. ATC acknowledges the cancellation, at which point IFR separation services cease. The pilot then proceeds under VFR rules for the rest of the flight.

If the transition occurs in uncontrolled airspace and the pilot is not in direct contact with ATC, the cancellation can be made via radio to the nearest FSS. The pilot identifies themselves, gives their aircraft identification, position, and the fact that they are canceling IFR. FSS relays this information to ATC and closes the IFR portion of the flight plan. This relay step is important — cancellation of an IFR flight plan is effective only once ATC is informed, either directly or through an FSS relay, and the cancellation is acknowledged by ATC.

Opening the VFR Portion

After the IFR segment is canceled, the pilot is responsible for activating the VFR portion of the composite flight plan. This is done by contacting FSS and requesting that they open the VFR flight plan. If the pilot neglects this step, the VFR segment will never be formally activated, and there will be no one monitoring the flight or expecting an arrival report at the final destination.

It is worth noting that ATC does not open the VFR leg for you. ATC's role ends when IFR is canceled. The FSS handles VFR flight plans, and it is entirely the pilot's responsibility to make that activation call. Many pilots cancel IFR, thank the controller, and switch frequencies — then forget to call FSS to open the VFR portion. The result is an unmonitored VFR flight with no one expecting the pilot to arrive.

Closing the VFR Portion

Just like any other VFR flight plan, the VFR segment of a composite flight plan must be closed upon arrival. If the pilot lands at a towered airport, the tower controller does not automatically close the VFR flight plan — the pilot must still call FSS (by phone or radio) and confirm arrival. If the VFR leg is not closed within 30 minutes of the estimated time of arrival (ETA), search and rescue procedures are started, beginning with FSS attempting to contact the pilot or the destination airport. If unable to reach the aircraft, FSS initiates search and rescue procedures through the appropriate authority.

The 30-minute ETA window is a commonly tested figure. It is the standard time after which an overdue VFR aircraft triggers the start of search and rescue procedures. Keeping an accurate ETA on file and updating it if the flight is delayed is a basic airmanship responsibility.

Why Composite Flight Plans Matter

The composite flight plan is a tool that increases flexibility and reduces the administrative burden of filing two entirely separate flight plans. However, its benefit comes with a proportional responsibility. Because IFR and VFR operations carry fundamentally different rules — IFR provides positive separation and allows flight in IMC; VFR requires the pilot to maintain cloud clearances and avoid controlled airspace without authorization — the handoff between them must be crisp and unambiguous.

From a safety perspective, the most dangerous failure mode is a pilot who cancels IFR but never opens the VFR leg, then encounters deteriorating weather and attempts to continue VFR into IMC with no one monitoring the flight. The composite flight plan system assumes the pilot will manage both legs diligently. ATC will not chase you down to remind you to open the VFR portion.

Key Numbers and Rules

Composite flight plan type: Designated as such on the FAA flight plan form; combines one IFR and one VFR segment in sequence.
IFR cancellation: Pilot must explicitly cancel IFR with ATC or relay through FSS at the designated changeover point — it does not close automatically.
VFR leg activation: Pilot contacts FSS to open the VFR portion after IFR is canceled; ATC does not do this.
VFR flight plan closure: Pilot must close with FSS upon arrival; towers do not close VFR flight plans.
Overdue VFR ETA window: 30 minutes after ETA — search and rescue procedures are started if the flight plan hasn't been closed.
Class A airspace reminder: Class A begins at 18,000 feet MSL. A pilot who cancels IFR below Class A and then climbs without a clearance violates 14 CFR Part 91 — composite plan transitions should always account for altitude.

Common Test Traps

Who closes what: A favorite exam question is whether the tower controller closes the VFR flight plan when you land. The answer is no — only FSS closes it, and only when the pilot reports arrival. Never assume it closes automatically.
Who opens the VFR leg: ATC cannot open a VFR flight plan. After canceling IFR, many students assume ATC hands them off seamlessly. The pilot must contact FSS separately to activate the VFR portion.
IFR cancellation is not automatic on landing: Landing at a towered airport does not by itself automatically cancel an IFR flight plan. On a composite flight plan, the pilot must explicitly cancel IFR at or near the transition point — not simply assume it closes upon arrival. Pilots should not rely on landing alone to close out an IFR flight plan.
The 30-minute ETA trigger: Some students confuse this with other time intervals in aviation. The 30-minute window specifically applies to overdue VFR aircraft and triggers the start of search and rescue procedures — not 45 minutes, not 1 hour.
In-flight IFR cancellation in VMC: A pilot can cancel IFR any time they are in VFR conditions and able to remain clear of clouds, below Class A airspace. However, on a composite plan, the cancellation must occur at or near the planned changeover point to keep the VFR leg timing accurate and the FSS coordination intact.