In January 1955, she embarked upon a voyage to the Mediterranean Sea where she served with the 6th Fleet until March.
Resuming duty with the Atlantic Fleet ASW forces, she operated along the eastern seaboard until the fall of 1956.
In October of that year, she cruised to the waters of the eastern Atlantic for NATO ASW exercises and goodwill visits to ports in Allied countries.
She ran aground off Brest, France, on 22 October 1956, but was refloated undamaged.
While the carrier was in Rotterdam, the Suez crisis broke out in the eastern Mediterranean.
Antietam cut short her visit to the Netherlands and headed for the Mediterranean to bolster the 6th Fleet during the evacuation of American citizens from Alexandria, Egypt.
At the end of that assignment, she conducted ASW training exercises with Italian naval officers embarked before returning to Quonset Point on 22 December.

After resuming operations along the eastern seaboard early in 1957, Antietam was assigned on 21 April 1957 to training duty with the Naval Air Station Pensacola, Florida.
Mayport however, served as her home port because ships of her draft could not then enter port at Pensacola.
For almost two years the aircraft carrier operated out of Mayport training new Navy pilots and conducting tests on new aviation equipment—most noteworthy on the Bell automatic landing system during August 1958.
She also participated in annual Naval Academy midshipmen cruises each summer.

In January 1959, after the deepening of the channel into Pensacola had been completed, Antietam's home port was changed from Mayport to Pensacola.
For the remainder of her active career, the carrier operated out of Pensacola as an aviation training ship.

The deck of the Antietam served as the launching pad for the stratospheric balloon flight of Commander Malcolm D. Ross and Lieutenant Commander Victor A. Prather, both of the United States Navy, on 4 May 1961.
This flight set an absolute official altitude record for manned balloons of 113,740 feet (34,670 m).
The flight took place over the Gulf of Mexico.
During recovery, Prather slipped from the rescue helicopter's lifting harness, fell into the ocean, and died from his injuries onboard Antietam.
Commander Ross was successfully recovered.

On two occasions, she provided humanitarian services to victims of hurricane damage.
The first came in September 1961 when she rushed to the Texas coast to provide supplies and medical assistance to the victims of Hurricane Carla.
The second came just over a month later when she carried medical supplies, doctors, nurses, and other medical personnel to British Honduras to help the victims of Hurricane Hattie.
Otherwise, she spent the final four years of her naval career in routine naval aviation training duty out of Pensacola.
On 23 October 1962, Antietam was relieved by sister ship Lexington as aviation training ship at Pensacola and was placed in commission, in reserve, on 7 January 1963.
Berthed at Philadelphia, Pennsylvania, she remained in reserve until May 1973 when her name was struck from the Navy List.
On 28 February 1974, she was sold to the Union Minerals & Alloys Corp. for scrapping.
In January 1955, she embarked upon a voyage to the Mediterranean Sea where she served with the 6th Fleet until March. Resuming duty with the Atlantic Fleet ASW forces, she operated along the eastern seaboard until the fall of 1956. In October of that year, she cruised to the waters of the eastern Atlantic for NATO ASW exercises and goodwill visits to ports in Allied countries. She ran aground off Brest, France, on 22 October 1956, but was refloated undamaged. While the carrier was in Rotterdam, the Suez crisis broke out in the eastern Mediterranean. Antietam cut short her visit to the Netherlands and headed for the Mediterranean to bolster the 6th Fleet during the evacuation of American citizens from Alexandria, Egypt. At the end of that assignment, she conducted ASW training exercises with Italian naval officers embarked before returning to Quonset Point on 22 December.
After resuming operations along the eastern seaboard early in 1957, Antietam was assigned on 21 April 1957 to training duty with the Naval Air Station Pensacola, Florida. Mayport however, served as her home port because ships of her draft could not then enter port at Pensacola. For almost two years the aircraft carrier operated out of Mayport training new Navy pilots and conducting tests on new aviation equipment—most noteworthy on the Bell automatic landing system during August 1958. She also participated in annual Naval Academy midshipmen cruises each summer.
In January 1959, after the deepening of the channel into Pensacola had been completed, Antietam's home port was changed from Mayport to Pensacola. For the remainder of her active career, the carrier operated out of Pensacola as an aviation training ship.
The deck of the Antietam served as the launching pad for the stratospheric balloon flight of Commander Malcolm D. Ross and Lieutenant Commander Victor A. Prather, both of the United States Navy, on 4 May 1961. This flight set an absolute official altitude record for manned balloons of 113,740 feet (34,670 m). The flight took place over the Gulf of Mexico. During recovery, Prather slipped from the rescue helicopter's lifting harness, fell into the ocean, and died from his injuries onboard Antietam. Commander Ross was successfully recovered.
On two occasions, she provided humanitarian services to victims of hurricane damage. The first came in September 1961 when she rushed to the Texas coast to provide supplies and medical assistance to the victims of Hurricane Carla. The second came just over a month later when she carried medical supplies, doctors, nurses, and other medical personnel to British Honduras to help the victims of Hurricane Hattie. Otherwise, she spent the final four years of her naval career in routine naval aviation training duty out of Pensacola. On 23 October 1962, Antietam was relieved by sister ship Lexington as aviation training ship at Pensacola and was placed in commission, in reserve, on 7 January 1963. Berthed at Philadelphia, Pennsylvania, she remained in reserve until May 1973 when her name was struck from the Navy List. On 28 February 1974, she was sold to the Union Minerals & Alloys Corp. for scrapping.
USS Antietam (CV-36)