The countries that used the F2A were Australia, Belgium (40), Britain (170), Finland, Netherlands East Indies (72), New Zealand, and United States.
The VF-3 received the first eleven F2A Buffalos in June 1940 on the USS Saratoga.
After being operational for a few months the Buffalo was withdrawn from service and replaced by F4F Wildcats.
The United States Marine Corps used F2As in the VMF-221 at Midway in 1942. 13 of the 19 available were shot down.
Finland ordered 44 B-239s.
They were used with success against the Soviets from 1941 to 1944.
Belgium ordered 40 B-339Bs. 38 of these were diverted to the United Kingdom.
The Dutch ordered 72 B-339Ds.
The Dutch East Indies was to receive 20 B-439s but these were delivered to the United States Air Corp. 17 of these were sent to Australia.
The United Kingdom received 38 of the B-339Bs that were intended for the Belgians. They also received 170 B-339Es that were designated the Buffalo Mk I. Most of the Buffalos served with the Royal Air Force (RAF) and only a few served with the Royal Navy.