---
kind: "section"
citation: "14 C.F.R. § 121.667"
title: "14"
number: "121.667"
heading: "Flight plan: VFR and IFR: Supplemental operations."
url: "https://uscodex.org/cfr/14/121.667"
---

# §121.667. Flight plan: VFR and IFR: Supplemental operations.

- (a) No person may take off an aircraft unless the pilot in command has filed a flight plan, containing the appropriate information required by [part 91](/cfr/14/part91.md), with the nearest FAA communication station or appropriate military station or, when operating outside the United States, with other appropriate authority. However, if communications facilities are not readily available, the pilot in command shall file the flight plan as soon as practicable after the aircraft is airborne. A flight plan must continue in effect for all parts of the flight.
- (b) When flights are operated into military airports, the arrival or completion notice required by §§ [91.153](/cfr/14/91.153.md) and [91.169](/cfr/14/91.169.md) may be filed with the appropriate airport control tower or aeronautical communication facility used for that airport.

## Notes

### Amendments

[Docket 6258, 29 FR 19222, Dec. 31, 1964, as amended by Amdt. 121-206, 54 FR 34331, Aug. 18, 1989]

### Source

Source: Docket 6258, 29 FR 19222, Dec. 31, 1964, unless otherwise noted.

### Authority

Authority: 49 U.S.C. 106(f), 40103, 40113, 40119, 41706, 42301 preceding note added by Pub. L. 112-95, sec. 412, 126 Stat. 89, 44101, 44701-44702, 44705, 44709-44711, 44713, 44716-44717, 44722, 44729, 44732; 46105; Pub. L. 111-216, 124 Stat. 2348 (49 U.S.C. 44701 note); Pub. L. 112-95, 126 Stat. 62 (49 U.S.C. 44732 note); Pub. L. 115-254, 132 Stat. 3186 (49 U.S.C. 44701 note).

### Amendments

[Docket 6258, 29 FR 19222, Dec. 31, 1964, as amended by Amdt. 121-206, 54 FR 34331, Aug. 18, 1989]