WarBrief Live | October 22, 2026 | Intelligence Tool Profile
When a U.S. Navy P-8A Poseidon circled off Bulgaria’s Black Sea coast on October 18, 2026, open-source analysts watched it on Flightradar24 — the crowdsourced flight-tracking platform that has become a standard tool in OSINT aircraft tracking. This is the newest profile in WarBrief’s intelligence tools library.
What Flightradar24 does
Flightradar24 combines a global ADS-B receiver network with dozens of other sources into a real-time moving map of air traffic. The company says its network exceeds 50,000 receivers on seven continents and in space, tracking hundreds of thousands of flights daily against a database of more than 1.5 million airframes.
Data comes primarily from ADS-B signals, which carry aircraft identification, position, speed, and altitude. Mode S-only aircraft are positioned through multilateration (MLAT), which also helps counter GPS jamming and spoofing. Satellite-based ADS-B covers areas outside terrestrial range — satellite-tracked aircraft appear as blue icons, terrestrial as yellow — and the service also ingests radar data for North America and Australia.
How OSINT analysts use it to track military aircraft
Combat aircraft are mostly invisible to the platform. But military transports, refueling tankers, training flights, and patrol aircraft often keep transponders on in civilian airspace — and then they are visible to anyone watching.
The current Black Sea surge is a textbook case. After drones struck two cargo ships in Bulgaria’s exclusive economic zone on October 13 — one sinking off Krapets with 11 crew members missing — a U.S. Navy P-8A Poseidon flew low off Varna and Burgas on October 18. Tracking data published by the monitoring account Itamilradar, based on Flightradar24 data, showed the sub-hunter circling off Burgas, reportedly the first such U.S. patrol there in months. Bulgaria’s prime minister confirmed reconnaissance patrols at Sofia’s request, and on October 20 NATO announced additional maritime patrol aircraft and radar assets for the Black Sea. For the maritime equivalent, see MarineTraffic: How Analysts Track Ships in Conflict Zones.
Analysts cross-reference call signs, registrations, and departure points against basing data, and pair Flightradar24 with unfiltered trackers such as ADS-B Exchange, which ignores restriction requests. Typical workflows: monitoring reconnaissance types (P-8A, RC-135W, RQ-4B) near flashpoints, watching diplomatic flights during crises, and capturing incident-response aviation in near real time. More on the discipline in WarBrief’s open-source intelligence hub.
Access and pricing
The core platform is free, with ads, a 30-minute website session timeout, and seven days of flight history. Paid tiers remove those limits: Silver extends flight history to 90 days; Gold extends it to a full year and adds weather layers, aeronautical charts, oceanic tracks, and ATC boundaries; Business extends history to three years with data export and airport runway data. Pricing varies by country and currency — comparisons commonly cite roughly $10/year for Silver, $35 for Gold, and $500 for Business — so check the official premium page for current regional pricing.
Limitations every analyst must know
The biggest limitation is what never appears. Aircraft with transponders switched off — standard for tactical operations — are invisible, and most combat and sensitive missions use encrypted military signals incompatible with civilian networks. Flightradar24 complies with official restriction requests: most restricted aircraft are military, some shown anonymized by type, while high-profile aircraft such as Air Force One are not displayed at all. Private operators can request privacy, in which case the aircraft shows as blocked.
Coverage is uneven: over oceans and remote regions positions are estimated (marked by a black dotted trail). ADS-B can be spoofed, though MLAT cross-checks help expose forged positions. And a track is not a mission: Itamilradar noted the P-8A’s profile was consistent with maritime surveillance but could not establish its exact mission. Flightradar24 is a lead generator — significant observations still need corroboration before becoming analysis.
Frequently asked questions
Is Flightradar24 free?
Yes. The free tier gives real-time global tracking and seven days of history; paid tiers remove ads and timeouts and add extended history, weather layers, and export tools.
Can Flightradar24 show military aircraft?
Only those broadcasting ADS-B or Mode S with transponders on, such as transports, tankers, training flights, and some patrol aircraft. Tactical jets, combat missions, and most restricted flights do not appear.
Sources
- Flightradar24: How Flightradar24 works
- Flightradar24: Subscription plans
- Al Jazeera: NATO to send additional patrol planes to Black Sea after drone attacks
- Defence Blog: U.S. Navy sub hunter plane circles off Bulgaria after drone strikes
- The Intel Hub: How to Track a Plane in Real-Time (Free Flight OSINT Tools)
