AIM Text
- Pilots departing on an IFR flight plan should consult the Chart Supplement to determine the frequency or telephone number to use to contact clearance delivery. On initial contact, pilots should advise that the flight is IFR and state the departure and destination airports.
- Air traffic facilities providing clearance delivery services via telephone will have their telephone number published in the Chart Supplement of that airport's entry. This same section may also contain a telephone number to use for cancellation of an IFR flight plan after landing.
- Except in Alaska, pilots of MEDEVAC flights may obtain a clearance by calling 1-877-543-4733.
Source: FAA Aeronautical Information Manual · current edition · paragraph 5-2-3.
The short answer
This AIM section is FAA advisory guidance on obtaining an IFR clearance when departing an uncontrolled airport. It directs pilots to consult the Chart Supplement for the clearance delivery frequency or telephone number, advise on initial contact that the flight is IFR, and state departure and destination airports. It supports clearance requirements under 14 CFR 91.173.
Research Notes
Common Questions
How do I get my IFR clearance leaving an airport with no control tower?
Per the AIM, consult the Chart Supplement for that airport to find the frequency or telephone number for clearance delivery. On initial contact, advise the flight is IFR and state your departure and destination airports.
Where do I cancel my IFR flight plan after landing at an uncontrolled field?
The AIM notes that the Chart Supplement entry for the airport may contain a telephone number to use for cancellation of an IFR flight plan after landing.
Is there a special clearance number for MEDEVAC flights?
Yes. The AIM states that, except in Alaska, pilots of MEDEVAC flights may obtain a clearance by calling 1-877-543-4733.