The 12 Most Important Spy Planes Ever Flown

The most important spy plane ever flown is the Lockheed U-2. Its photographs of Soviet missiles in Cuba in October 1962 set off the Cuban Missile Crisis, and 71 years after its first flight it is still flying missions in 2026.

The SR-71 Blackbird is faster and far more famous, but fame is not the measure here. This list ranks spy planes by impact: what the intelligence they gathered changed, how long they served, and how much they shaped the aircraft that came after them.

It covers manned jets, a Second World War fighter, signals-intelligence airliners, and the drones that are taking over the job. Every status is current as of September 2026.

Rank	Spy plane	Country	Defining moment	Status (2026)
1	Lockheed U-2 Dragon Lady	US	Found Soviet missiles in Cuba, 1962	In service
2	Lockheed SR-71 Blackbird	US	Mach 3 overflights, none lost to enemy fire	Retired 1998 (USAF)
3	Supermarine Spitfire PR	UK	Found the Bismarck, May 1941	Retired 1954
4	Boeing RC-135 Rivet Joint	US, UK	In every sizeable US conflict since Vietnam	In service
5	Lockheed A-12 Oxcart	US (CIA)	Found the captured USS Pueblo, 1968	Retired 1968
6	Vought RF-8A Crusader	US	160,000 low-level images of Cuba	Retired
7	Northrop Grumman RQ-4 Global Hawk	US	Nonstop drone flight to Australia, 2001	In service (9 left)
8	Boeing RB-47 Stratojet	US	Overflew the Soviet Union, 1954	Retired 1967
9	Lockheed EP-3E Aries II	US	Hainan Island collision, 2001	Retired 2025
10	Lockheed Martin RQ-170 Sentinel	US	Watched the bin Laden raid, 2011	In service
11	Mikoyan MiG-25R Foxbat	USSR	Untouchable over Sinai, 1971	Retired by India, 2006
12	Ilyushin Il-20 Coot	USSR, Russia	Shot down by its own ally, 2018	In service

1. Lockheed U-2 Dragon Lady

Few aircraft have changed more history with a camera. On October 14, 1962, Maj. Richard Heyser spent less than seven minutes over Cuba in a CIA U-2, and analysts in Washington found Soviet SS-4 missile transporters on his film.

That discovery started the Cuban Missile Crisis. Two years earlier, on May 1, 1960, a Soviet surface-to-air missile had brought down Francis Gary Powers in a U-2 over the Soviet Union, the most famous spy-plane loss of the Cold War.

Kelly Johnson’s Skunk Works built the U-2 Dragon Lady in complete secrecy, and it first flew in August 1955. The current U-2S cruises at 410 mph (660 km/h), routinely works above 70,000 feet, and can fly more than 7,000 miles (11,300 km) without refueling.

What puts it ahead of the Blackbird is endurance. The SR-71 retired in 1998, while the U-2 is still one of the oldest military planes in service, with 23 aircraft averaging more than 40 years old.

The Air Force asked to retire all 23 by the end of fiscal 2027. In June 2026 a draft House spending bill pushed back, capping retirements at two and adding $81 million to restore four aircraft, so the fight over its future is not over.

2. Lockheed SR-71 Blackbird

The SR-71 is the most famous spy plane ever built, and its records still stand. On July 28, 1976, an SR-71A set the absolute world speed record for an air-breathing aircraft at 2,193.2 mph (3,529.6 km/h), and that same month an SR-71 set an absolute altitude record of 85,069 feet.

Its defense was speed. Lockheed built 32 Blackbirds and 12 were lost in accidents, but not one was lost to enemy action, a story told in full in how many SR-71 Blackbirds were lost.

On its delivery flight to the Smithsonian on March 6, 1990, an SR-71 flew from Los Angeles to Washington in 1 hour, 4 minutes and 20 seconds, averaging about 2,124 mph (3,418 km/h). The Air Force retired the type for good in 1998, and NASA flew its last one in 1999.

The SR-71 Blackbird ranks second, not first, because its intelligence never set off a crisis the way the U-2’s did. It was the ultimate spy plane technically, and a short-lived one.

3. Supermarine Spitfire PR

The Spitfire is remembered as a fighter, but its unarmed photo-reconnaissance versions may have mattered as much. Inspired by Sidney Cotton, the RAF stripped out the guns and radio, filled the space with cameras and fuel, and relied on speed and height instead of firepower.

On May 21, 1941, Flying Officer Michael Suckling took Spitfire X4496 from Wick in Scotland and found the German battleship Bismarck anchored in the Grimstadfjord near Bergen. Churchill had the photos published as “the pictures that sank the Bismarck,” and the ship was sunk on May 27, six days later.

Another PR Spitfire photographed a German Würzburg radar at Bruneval on the French coast, which set up the British commando raid on the site, Operation Biting. The late-war photo Spitfire, the PR Mk XIX, was built in 225 examples and stayed in front-line RAF service until April 1954.

4. Boeing RC-135 Rivet Joint

The RC-135 is the least glamorous plane on this list and possibly the hardest-working. Versions of it have flown since 1961, and the Rivet Joint is the Air Force’s standard airborne signals-intelligence aircraft.

It is a heavily modified C-135 that carries more than 30 people, including electronic warfare officers and intelligence operators. They detect, identify and locate radio and radar signals across the spectrum and pass what they find to commanders in near real time.

According to the Air Force, the RC-135 fleet has been present in every sizeable US conflict since Vietnam. By August 2010 the Rivet Joint had marked 20 years of unbroken presence in the Middle East, the longest of any aircraft in the Air Force inventory, and Britain bought three of its own as the RC-135W Airseeker from 2013.

5. Lockheed A-12 Oxcart

Before the SR-71 there was the A-12, a single-seat Mach 3 spy plane flown by the CIA. It first flew on April 26, 1962, and only 13 were built, six of which were lost.

From May 31, 1967, A-12s flew Operation Black Shield out of Kadena Air Base on Okinawa, photographing North Vietnam. In January 1968 an A-12 overflight found the captured spy ship USS Pueblo in North Korea’s Wonsan Bay.

The program ended with a final flight on June 21, 1968, handing the job to the Air Force’s two-seat SR-71. The same design also produced three YF-12A interceptor prototypes.

6. Vought RF-8A Crusader

The U-2 found the missiles in Cuba, but the Navy’s RF-8A Crusaders showed them up close. From October 23, 1962, pairs of unarmed RF-8As flew low over the island twice a day from Key West, then raced the film to Jacksonville for developing and on to the Pentagon.

Over about six weeks the Crusaders brought back 160,000 images, confirming the Soviet missiles and then watching them leave. The pilots received the Distinguished Flying Cross.

The photo Crusader had already made history once. On July 16, 1957, Maj. John Glenn flew an F8U-1P from California to New York in 3 hours, 23 minutes and 8.3 seconds, the first supersonic transcontinental flight.

7. Northrop Grumman RQ-4 Global Hawk

The Global Hawk proved a drone could do the U-2’s job without a pilot. It first flew on February 28, 1998, and on April 24, 2001 it flew nonstop from Edwards Air Force Base to Australia, 8,214 miles (13,220 km), a distance record for an unmanned aircraft.

It works at up to 60,000 feet and once stayed airborne for 33.1 hours. In June 2019, Iran shot down a Navy RQ-4A test version near the Strait of Hormuz with a surface-to-air missile, claiming it had entered Iranian airspace, which the US denied.

The Air Force is down to nine RQ-4s from a peak of 33, and Congress has barred it from retiring any until the end of fiscal 2030. Its successors in the best military drones in the world all build on what it proved.

8. Boeing RB-47 Stratojet

Before the U-2 existed, the US spied on the Soviet Union with converted bombers. Boeing built 240 camera-carrying RB-47Es and 32 electronic-intelligence RB-47Hs, variants of the B-47 Stratojet bomber.

On May 8, 1954, Capt. Hal Austin flew an RB-47E straight over the Soviet Union near Murmansk, was chased and hit by MiG-17s, and still made it back to RAF Fairford. Not every crew was that lucky: in April 1955 an RB-47 vanished after MiG-15s intercepted it off Kamchatka.

On July 1, 1960, just two months after Powers, a MiG-19 shot down an RB-47H in international airspace over the Barents Sea. Four crew died and two were captured and released in 1961, and the last RB-47H retired on December 29, 1967.

9. Lockheed EP-3E Aries II

The EP-3E, a signals-intelligence version of the P-3 Orion patrol plane, is on this list mainly for one day. On April 1, 2001, a Chinese J-8II fighter collided with an EP-3E over the South China Sea, and the Chinese pilot, Wang Wei, was killed.

The crippled EP-3E made an unauthorized emergency landing at Lingshui airfield on Hainan Island with 24 crew aboard. China held them for 10 days, then sent the aircraft back in July 2001, taken apart and flown out in two Antonov An-124 freighters.

The crew went home only after the US sent China a letter expressing regret. The Navy retired its last EP-3E in February 2025 and handed the job to the MQ-4C Triton drone.

10. Lockheed Martin RQ-170 Sentinel

The RQ-170 is a stealthy flying-wing drone that the Air Force admitted to only after grainy photos appeared of it at Kandahar in December 2009. The nickname stuck: the Beast of Kandahar.

The Washington Post reported that an RQ-170 watched the May 2, 2011 raid on Osama bin Laden’s compound, feeding live video to President Obama’s national security team. Seven months later, on December 4, 2011, one came down inside Iran near Kashmar.

Iran said its electronic warfare unit brought it down, and US officials acknowledged losing the drone. Iran later claimed to have copied it, and its Shahed 171 is modeled on the captured airframe, making the RQ-170 one of the few stealth aircraft an adversary has held in its hands.

11. Mikoyan MiG-25R Foxbat

The Soviet Union’s best answer to the Blackbird was a reconnaissance version of its fastest interceptor. In 1971 and 1972, Soviet-flown MiG-25Rs based in Egypt made pairs of high-speed runs over Israeli-held Sinai at 56,000 to 75,000 feet.

Israeli F-4 Phantoms tried to catch them, including on November 6, 1971, and failed. The MiG-25 Foxbat was redlined at Mach 2.8, fast enough and high enough to make interception close to impossible.

India flew MiG-25Rs as well, and in May 1997 one reportedly flew faster than Mach 3 over Pakistani territory after a reconnaissance run, drawing a formal Pakistani protest. India retired its fleet in 2006.

12. Ilyushin Il-20 Coot

The Il-20, known to NATO as the Coot-A, is Russia’s signals-intelligence airliner, built on the Il-18 turboprop. It first flew on March 21, 1968, and only 19 were built, yet NATO fighters have intercepted it again and again over the Baltic.

On September 17, 2018, a Syrian S-200 missile battery shot down a Russian Il-20M over the eastern Mediterranean, killing all 15 aboard. Russia’s own ally had fired the missile.

It is still busy. On August 20, 2026, Finland said an Il-20 was suspected of flying about 4.7 nautical miles into Finnish airspace south of the island of Utö for roughly three minutes, and an investigation is underway.

Near misses

The Lockheed D-21 was a Mach 3.3 drone launched from B-52s against China’s Lop Nor nuclear test site between 1969 and 1971. It was brilliant engineering, but all four operational missions failed, so it misses the list on impact.

The US Army’s new HADES, a converted Bombardier Global 6500 business jet, is too new to rank. Flight testing was scheduled for summer 2026 and service entry is expected in 2027, as covered in our look at the Army’s HADES spy plane.

FAQ

Does the US still use spy planes?

Yes. As of September 2026 the Air Force still flies 23 U-2 Dragon Ladies, the RC-135 Rivet Joint signals-intelligence fleet, and nine RQ-4 Global Hawk drones. The Army is also bringing a new manned spy jet, HADES, into service, with entry expected in 2027.

What is the most famous spy plane in history?

The SR-71 Blackbird is the most famous, thanks to its speed record of 2,193.2 mph and the fact that none of the 32 built was lost to enemy action. The most important is the U-2, whose photographs of Soviet missiles in Cuba in October 1962 started the Cuban Missile Crisis.

What plane does the CIA use?

The CIA’s current aircraft are not public. Historically it flew the U-2, including the aircraft that found the missiles in Cuba, and the A-12 Oxcart, a single-seat Mach 3 spy plane it operated until 1968. The RQ-170 Sentinel drone lost over Iran in 2011 was described by US officials as a CIA-operated aircraft.

What spy planes are used today?

In the US, the main spy planes in 2026 are the U-2S, the RC-135 family, the RQ-4 Global Hawk, the RQ-170 Sentinel and the Navy’s MQ-4C Triton, which replaced the EP-3E in 2025. Britain flies three RC-135W Airseekers, and Russia still flies the Il-20 Coot, which Finland suspected of entering its airspace in August 2026.

How high can a U-2 spy plane fly?

The Air Force lists the U-2’s ceiling as above 70,000 feet, and it routinely flies there. At that height the pilot must wear a full pressure suit similar to an astronaut’s.

Was an SR-71 ever shot down?

No. Lockheed built 32 SR-71s and 12 were lost in accidents, but none was lost to enemy action. Its speed and altitude, above Mach 3 at around 85,000 feet, let it outrun the threats aimed at it.

What is the fastest spy plane ever built?

The SR-71 holds the official record at 2,193.2 mph, set on July 28, 1976. The CIA’s A-12, its predecessor, reached Mach 3.2 to 3.3 and flew slightly higher than the SR-71 at the same speed, and the unmanned D-21 drone exceeded Mach 3.3.