U.S., April 19 -- The number of airline passengers who traveled through Southern California's Ontario International Airport (ONT) increased by more than 5% last month compared to March last year, the Ontario International Airport Authority (OIAA) announced. Overall, passenger numbers grew from 415,000 in March 2018 to 436,701 last month.

The number of domestic travelers increased by 2% to 412,440 from 404,334 in March last year. Meanwhile, the number of international passengers rose to 24,261 last month, up from 10,665 in March 2018, an increase of 127.5%.

In the first three months of 2019, nearly 1.2 million air travelers passed through ONT, an increase of 4.6% over the same period a year ago. The number of international travelers rose...