This is a list of accidents and incidents involving military aircraft grouped by the year in which the accident or incident occurred. Not all of the aircraft were in operation at the time. For more comprehensive lists, see the Bureau of Aircraft Accidents Archives, the Air Safety Network or the Dutch Scramble Stoffer & Blik Database. Combat losses are not included, except for a few singular cases.

Aircraft terminology Information on aircraft are the type and, if available, the serial number of the operator; the constructor's number, also known as the manufacturer's serial number (c/n); exterior codes; nicknames (if any); flight call sign, and operating units.

January–March 1945

1 January A Focke-Wulf Fw 190D-9 Black 12 of 10./JG. 54, flown by Leutnant Theo Nibel of the Grimbergen force, was downed during Unternehmen Bodenplatte when it struck a partridge. The bird made a hole in the plane's radiator, forcing a gear-up landing near Brussels.Weber, Eberhard-Dietrich, Ing (grad), "Dora-9 and the Tank Fighters", Air Enthusiast Quarterly, Number One, Bromley, Kent, UK, 1976, p. 103.

A Lockheed P-38G-10-LO Lightning, 42-13400, c/n 222-7834, crash-landed on Attu Island in the Aleutians, west of Anchorage, Alaska, on a training mission; the pilot, 2nd Lt. Robert Nesmith, was uninjured. The plane's propellers were torn off, its horizontal stabilizer was broken, and its left nacelle was buckled. After a salvage for parts, it was abandoned in place. Recovered in June 1999, it was transported by helicopter to the U.S. Coast Guard station at Attu and flown to Anchorage in an Alaska Air National Guard Lockheed C-130 Hercules. The plane was registered as N55929. Restored at Elmendorf Air Force Base, Alaska, it was placed on display in McCloud Memorial Park at Elmendorf in April 2000.Fisher, S/Sgt. Jim, "A Fitting Tribute", Airman, Air Force News Agency, San Antonio, Texas, September 2000, Volume XLIV, Number 9, pages 38–41.

2 January Admiral Bertram Ramsay, departing from Toussus-le-Noble, France in a Lockheed Hudson for a meeting with General Bernard Montgomery in Brussels, was killed with four other people when the aircraft crashed on takeoff. The cause was attributed to icing, which made the aircraft tail-heavy.

10 January A Northrop P-61B-1-NO Black Widow, 42-39445, c/n 964 of the 550th Fighter Squadron, based at Hollandia, New Guinea, on a supposed proficiency flight (the pilot took three passengers, including a 20-year-old WAAC nurse), landed (largely intact) at the level of the Cyclops Mountains, a few miles from its airfield. All aboard survived, with minor injuries. The airframe, recovered in 1989 by helicopter, is being restored at the Mid-Atlantic Air Museum in Reading, Pennsylvania.Auliard, Gilles, and Baert, John, "Kiss of the Black Widow", FlyPast, Stamford, Lincs., UK, February 2001, pp.72–73.

19 January RAF group captain J. F. X. McKenna AFC, elected a fellow of the Royal Aeronautical Society in 1944 and appointed commandant of the Empire Test Pilots' School of the Aeroplane and Armament Experimental Establishment in March of that year, was killed during a familiarisation flight on Mustang Mk IV KH648. The plane crashed when the ammunition-box cover detached at high speed and the aircraft lost a wing on the perimeter of Old Sarum Airfield, north-northeast of Salisbury, Wiltshire, England.

23 January An RAF Expeditor was lost in the Adriatic Sea near Brindisi. The aircraft was one of two carrying a delegation from the House of Commons to visit British forces in Italy; two members of Parliament, Robert Bernays and John Dermot Campbell, were killed. The plane was not found, and an investigation concluded that the pilot had attempted to push on through a heavy snowstorm rather than change course.

30 January A Consolidated B-24L-1-FO Liberator, 44-49180, crashed west of Helendale, California. The crew consisted of 1st Lt. James G. Wright (pilot), 2nd Lt. Norbert J. Vehr (copilot), 2nd Lt. Carl F. Hansen (radar instructor), 2nd Lt. John R. Palin (radar student), 2nd Lt. Herbert A. Perry (radar student), and T/Sgt. Harvey L. Cook (flight engineer). Perry, Vehr and Cook died in the crash, and the remaining crew members bailed out. The wreckage was recovered to Victorville Army Airfield, California, in February 1945, and reclamation was complete on 9 February.

February The Akutan Zero was destroyed during a training accident at Naval Air Station San Diego, California. While Cmdr. Richard G. Crommelin was taxiing the Mitsubishi A6M for take-off, a Curtiss SB2C Helldiver went out of control and crashed into it; the Helldiver's propeller sliced the A6M to pieces. From the wreckage, Rear Admiral William N. Leonard salvaged the manifold pressure gauge, air-speed indicator and the folding panel of the port wingtip, which he donated to the National Museum of the United States Navy. The Alaska Aviation Heritage Museum has two manufacturer's plates, and the Smithsonian National Air and Space Museum has small pieces of the A6M.Rearden, Fighter, 91. Crommelin, one of the five Alabama brothers who graduated from the U. S. Naval Academy, was killed in a mid-air collision on a mission over Hokkaido in July 1945. is named for the brothers.

1 February An RAF Avro York (MW116) crashed off Lampedusa while attempting to ditch after running out of fuel en route to Malta. Four crew members were injured and rescued by ; four other crew members and all eleven passengers were killed. The passengers, part of a Foreign Office delegation en route to the Yalta Conference, included the private secretary to the permanent secretary of the department and a King's Messenger.

9 or 11 February A Lockheed P-38L-1-LO Lightning, 44-24838, of the 432d Base Unit, Portland Army Air Base, crashed in the Oregon desert about southeast of Christmas Valley on a gunnery-training flight. The pilot, 25-year-old 2nd Lt. Max J. Clark, was killed. On 14 June 2007, the Bureau of Land Management (BLM) declared the crash scene a historic Federal government site at a Flag Day ceremony. An interpretive plaque, describing the designation and the historical significance of the site, was unveiled.

13 February A Douglas R4D-6, BuNo 50765, c/n 14848/26293, of Air Transport Squadron 3 of the US Navy crashed into the sea near Alameda, California, while on approach for landing at Naval Air Station Oakland; all twenty-one passengers and three crew members were killed.

During a high-speed taxi run at Seattle's Boeing Field in Boeing XF8B-1, BuNo 57984, pilot Bob Lamsen experienced an unexpected undercarriage retraction at 4:30 pm. The airframe came to rest near the middle of the main runway after sliding about . No emergency services were required; reports of smoke and fire were apparently due to runway friction. To aid the investigation, three cranes tried to lift the large fighter plane onto a flatbed truck with the gear still retracted; however, they could not gain sufficient height and a decision was made to manually extend the gear so the airframe could be moved with no further damage.Zichek, Jared A., "The Boeing XF8B-1 Fighter: Last of the Line", Schiffer Publishing Ltd., Atglen, Pennsylvania, 2007, , , pages 24–25.

17 February Luftwaffe experten (ace) Jürgen Harder (13 June 1918 – 17 February 1945), recipient of the Knight's Cross of the Iron Cross, with 64 claimed victories, was killed in the crash of a Messerschmitt Bf 109G-14, Werk. Nr. 784 738, near Strausberg, Germany, after the plane's engine failed. Technical experts who analysed the wreckage concluded that the piston of cylinder 12 penetrated the engine block; escaping fumes incapacitated Harder, who lost control of the aircraft.Scherzer, Veit (2007). Die Ritterkreuzträger Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives (in German). Jena, Germany: Scherzers Miltaer-Verlag. .

18 February Luftwaffe pilot Leutnant Erwin Ziller runs into problems 45 minutes into the third flight of Horten H.IX V2, when of one of the plane's jet engines failed; the aircraft spun to the right, and crashed just outside the airfield perimeter. Ziller died in hospital a fortnight later. This second prototype was the only powered Horten IX to fly. The incomplete V3 prototype was shipped to the United States, and is in the Smithsonian National Air and Space Museum.

19 February Two Lockheed P-38L Lightnings of the 433d Base Unit out of Chico Army Airfield, California, collide in mid-air northwest of Barstow, California, during a routine training and gunnery-practice flight and came down near Superior Dry Lake. "When the planes collided, one exploded in the air, and the other crashed to the ground."San Bernardino, California, "Two Army Pilots Killed When P-38s Crash in Mid-Air", San Bernardino Sun, Tuesday 20 February 1945, page 9. 2d Lt. Earl A. Morgan Jr. (in P-38L-1-LO, 44-23861) and 2d Lt. Walter E. Mogensen (in P-38L-5-LO, 44-25637) were both killed.Merlin, Peter W., and Moore, Tony, "X-Plane Crashes: Exploring Experimental, Rocket Plane, and Spycraft Incidents, Accidents and Crash Sites", Specialty Press, North Branch, Minnesota, 2008, Library of Congress card number 2008032059, , page 141. Morgan's mother, Ruth E. Morgan, lived in Camp Rowio, Texas; Mogensen's father, Carl G. Mogensen, lived in Modesto, California.International Press, Fresno Bee, Fresno, California, Thursday 22 February 1945, page 23. "Col. Robert A. Nagle, commanding officer, permitted the identity of the two officers to become known last night (19 February) after notification had been given to next of kin." 22 Feb 1945. Two TBF Avengers collide near Anacapa Island off the coast of California, 4 men are killed. (More details needed).

26 February Lieutenant General Millard Harmon (1888-1945) and Brigadier General James Roy Andersen (1904–1945) are lost with the Consolidated C-87A-CO Liberator Express, 41-24174, on which they were flying between Kwajalein and Johnston Island, en route to Hawaii. Harmon graduated from the United States Military Academy in 1912. In 1942 Harmon first became the Chief of the Air Staff, Army Air Forces and then the commander of all U.S. Army forces in the South Pacific Area. In 1944 he became commander of Army Air Forces, Pacific Ocean Areas (AAFPOA) and deputy commander of the Twentieth Air Force. The flight that Harmon and Andersen were on that led to their deaths was conducted because Harmon was on the way to Washington, D.C. to settle a dispute over long-distance escort fighter groups originally a part of his forces that were transferred to Major General Curtis Lemay, the commander of XXI Bomber Command. Andersen graduated from the United States Military Academy in 1926, served at several army installations, and obtained his wings at Kelly Field, Texas, in 1936. In 1943–1944, he served on the War Department General Staff. In January 1945, Andersen was assigned to HQ AAF, Pacific Ocean Area. Harmon Air Force Base, Guam, and Andersen Air Force Base, Guam, were named in their honor. The pilot of the aircraft was F. E. Savage.

1 March