Oniks (P-800) missile: speed, range and flight time to Odesa
The Oniks (P-800, also spelled Onyx; export name Yakhont) is a supersonic anti-ship missile. Russia fires it at Ukraine from Bastion coastal systems in Crimea, most often at Odesa Oblast. It flies at about 2.5 times the speed of sound; from Sevastopol to Odesa it takes about 6.6 min. On approach it skims the water, which makes it hard to spot in time and shoot down.
How long an Oniks takes to reach Odesa, Mykolaiv and Dnipro
The times below are for a straight line from Crimea to the city centre, at the speed the map uses for supersonic missiles (2,750 km/h). They match Krym.Realii's estimate: an Oniks takes 6–7 minutes from Sevastopol to Odesa [3]. Beyond 500 km (the range on a high trajectory) no time is shown [2].
| From | Odesa | Mykolaiv | Dnipro | Kharkiv | Kyiv |
|---|---|---|---|---|---|
| Crimea (Sevastopol) | 6.6 min 303 km | 6.3 min 290 km | 9.7 min 445 km | — | — |
| Crimea (Simferopol) | 6.8 min 313 km | 6.1 min 278 km | 8.7 min 397 km | — | — |
Only minutes pass from launch to impact in Odesa Oblast, so during an alert in the south take shelter right away rather than waiting for the marker on the map.
Oniks speed
The Oniks's top speed is up to 750 m/s — about 2,700 km/h — and it is supersonic on every leg of the flight [2]. CSIS puts it at Mach 2.2–2.6 [1]. En route it flies up to 14 km high and drops to 10–15 m above the water before the target [2] [4].
Where Oniks missiles are launched from
From Bastion coastal missile systems in occupied Crimea. Ukrainian intelligence hunts them: in March 2026 a Bastion was destroyed together with its missiles near Simferopol for the first time [8], and another was hit in August [9]. The Oniks can also be fired from ships and submarines [2].
In 2026 Oniks missiles from Crimea strike mostly Odesa Oblast: on 24 July, two missiles that did not reach their targets [6]; on 24 August, two, one shot down [7].
How many Oniks missiles have been fired at Ukraine
According to figures cited by Ukrinform, since 24 February 2022 Russia has fired up to 150 Oniks missiles at Ukraine: 71 in 2022, 42 in 2023, 2 in 2024, 8 in 2025 and 9 in the first seven months of 2026 [5]. Production goes on: according to Defence Intelligence, Russia built 60 Oniks missiles in the first seven months of 2026 [10].
Can an Oniks be shot down?
Yes, but it is hard. The missile approaches 10–15 m above the water, so radars see it late; according to Nataliia Humeniuk, spokeswoman for the Southern Defence Forces, only Patriot and SAMP/T can shoot it down [4]. Still, interceptions happen: as early as June 2022 air defence downed two Oniks missiles over Odesa [11], and on 24 August 2026 one of two [7].
Oniks specifications
| Type | supersonic anti-ship cruise missile |
|---|---|
| Other names | P-800, 3M55, Onyx; export version Yakhont; NATO designation SS-N-26 |
| Speed | up to 750 m/s (~2,700 km/h), Mach 2.2–2.6 [1] [2] |
| Altitude | up to 14 km en route, 10–15 m on approach [2] [4] |
| Range | 450–500 km on a high trajectory [2]; much less on a low one |
| Warhead | 200–250 kg [1] |
| Weight and length | ~3,000 kg; 8 m (ship version) [2] |
| Carriers | Bastion coastal systems, ships, submarines [2] |
Oniks, Oniks-M and Zircon
The Oniks and the Zircon are fired from the same Bastions, so the Air Force and monitoring channels often write "Zircon/Oniks". The missile fired from Kursk Oblast at Kyiv that channels call "Oniks-M" is counted by the Alarm Maps map as a Zircon — see the Zircon page. The Oniks flying from Crimea or the sea at Odesa and the coast is "Supersonic" on the map, like the Kh-22 and Kh-32, though it is a different weapon.
What an Oniks looks like on the map
A pink marker with swept wings is "Supersonic" (the sea-launched Oniks, Kh-22, Kh-32). Next to it is the number of minutes to arrival. Open the map · all threat types · Kh-22 and Kh-32 · Zircon · Banderol
Sources
- CSIS Missile Threat — SS-N-26 Oniks
- Fakty — the Oniks anti-ship missile and its specs (25.03.2024, Ukrainian)
- Krym.Realii — how long an Oniks takes to reach Odesa (27.07.2023, Ukrainian)
- Zaxid.net — Southern Command on why Oniks missiles are hard to shoot down (07.10.2023, Ukrainian)
- The Page — how many Oniks, Zircon and Kinzhal missiles Russia has fired (24.07.2026, Ukrainian)
- ArmyInform — Oniks missiles from Crimea, 24 July 2026 (Ukrainian)
- LB.ua — the 24 August 2026 attack: two Oniks missiles (Ukrainian)
- Euromaidan Press — a Bastion destroyed near Simferopol (25.03.2026)
- UNITED24 — a Bastion hit in Crimea (04.09.2026)
- Fakty — Defence Intelligence on Russia's missile output in 7 months of 2026 (10.08.2026, Ukrainian)
- ArmyInform — air defence downs two Oniks missiles over Odesa (27.06.2022, Ukrainian)
Our figure — the 2,750 km/h the map uses for a supersonic missile's time to arrival — comes from the Alarm Maps map; how we compute it is described on the Sources page.
Updated .