During the period, 25.6 percent of all new vehicles sold were financed through leases, according to Experian, which tracks millions of auto loans written every quarter.
Read MoreSubprime trouble? Car buyers struggle with loans
The average monthly payment for those vehicles leased between April and June was $407, with more than 70 percent of those leases stretching out two to three years.
By comparison, the monthly payment for those buying vehicles in the second quarter was $467.
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Who is driving the surge in leasing?
Increasingly, those leasing cars and SUVs for two to four years are those with higher credit scores. In fact, Experian said 43 percent of those who took out a lease in the second quarter in the U.S. had super-prime credit ratings. Super-prime credit scores are those above 740, according to Experian.