According to the White House, Trump and Macron affirmed in the call on Saturday that the joint airstrikes were "successful and necessary" to deter Syria from any further use of chemical weapons, Xinhua news agency reported.
They also discussed the need to reinvigorate multinational stabilization efforts in Syria to ensure the long-term defeat of Islamic State (IS).
In a separate call, Trump thanked May for her support of the strikes.
Earlier on Saturday, Trump hailed the "perfectly executed strike" of the three western nations on Syria, noting "Mission Accomplished!" in his tweet.
Trump on Friday ordered precise strikes against Syrian military facilities with Britain and France in a coordinated action.
The trilateral operations came with questionable legitimacy due to the lacking of proof that could show Syrian government behind the chemical attack, and has been widely criticised by Syria, Russia and Iran, among other nations.
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