FAAAirport Operations

FAA Preferred IFR Routes

Published preferred IFR routes between major city pairs.

Agency

FAA

Update cadence

Every 14 days (source republishes on the 28-day NASR cycle)

What we ingest

Route strings with departure/arrival fix and altitude.

Where this feed reaches

A region on this list means we fetch it. It is not a promise of station density: a listed region can still have sparse or no reporting sites near a given airport. Where a feed does not reach a region at all, this page says so instead of showing an empty panel.

Continental United States

How AeroCopilot uses it

IFR planning suggestions + AI routing.

Powers these features

The product surfaces below depend on this feed.

IFR planning

Upstream source: https://www.fly.faa.gov/rmt/nfdc_preferred_routes_database.jsp

Cite this

Permalink

AeroCopilot — FAA Preferred IFR Routes. Data: FAA (https://www.fly.faa.gov/rmt/nfdc_preferred_routes_database.jsp). https://www.aerocopilot.ai/data-sources/preferred-routes.

Try the AI Copilot with this data

The Copilot has live access to FAA Preferred IFR Routes during every conversation.