"At least here in South America, when we make a mistake, we recognize it and at least ask for forgiveness from those we have offended. ... Let them apologize for once in their lives for what they have done," she said.
Venezuelan President Nicolas Maduro blamed the CIA, saying he believes the agency pressured governments to refuse to allow Morales through their airspace.
"What just happened with the South American indigenous leader Evo Morales shows the level of madness and desperation that the (U.S.) empire has reached," he said.
So where is Snowden?
The situation is the latest twist in what has become a global guessing game over Snowden's next steps.
Snowden has admitted leaking classified documents about U.S. surveillance programs and faces espionage charges in the United States. He has applied for asylum in 21 countries, including Bolivia.
Snowden has been holed up at Moscow's Sheremetyevo International Airport since June 23. He arrived from Hong Kong.
Morales, a left-leaning president who has long criticized the United States, had been attending a conference of gas-exporting countries in Russia, where he told the Russia Today news network that he would be willing to consider asylum for Snowden.
But Bolivian officials said accusations that an official aircraft would harbor Snowden were baseless.
"We cannot lie to the international community by carrying ghost passengers," Bolivian Foreign Minister David Choquehuanca said.
Moscow condemned the nations that blocked Morales' path.
"France, Spain, and Portugal's actions (were) not friendly toward Bolivia and toward Russia," the Russian Foreign Ministry said. "Moscow will demand strict observance of international law ... guaranteeing immunity of heads of state."
France denied it refused to allow the plane to enter its airspace.
French Foreign Minister Laurent Fabius called his Bolivian counterpart to express regrets about a delay in the confirmation to authorize the plane to fly over its territory, the French Foreign Ministry said.
The authorization was granted as soon as French authorities were informed the plane was the Bolivian president's aircraft, the ministry said.
France "never intended to deny president Morales' plane access to (its) airspace," and the Bolivian leader is welcome in France, Fabius said.
France was among the countries where Snowden sought asylum. France said Thursday it had refused the request.
Italy also turned down Snowden's asylum request Thursday. "There are no legal reasons to accept this request," Foreign Minister Emma Bonino told the Italian parliament.
Meanwhile, in Iceland, lawmakers from several political parties have proposed a new law to grant Snowden citizenship after receiving a request from the former NSA contractor, lawmaker Birgitta Jonsdottir said.
On her website, Jonsdottir published what she said was the text of a letter from Snowden.
"I want to extend my gratitude to the Icelandic parliament for considering my request for Icelandic citizenship," he said, according to Jonsdottir. "I have been left defacto-stateless by my own government after communicating with the public."
Iceland has said it can't consider Snowden's request for asylum there until he's in its territory.