It may get lost in the major news of the day — Priceline has agreed to acquire Kayak — but the travel metasearch company’s efforts in making a little money off mobile are beginning to pay off.

In reporting its third quarter results today, Kayak indicated that its mobile RPM (revenue per thousand queries) increased 63% in the third quarter to $62 compared with the third quarter of 2011.

Based on the 56 million mobile queries, an 87% jump, which Kayak handled during the quarter, that means Kayak attracted nearly $3.5 million in revenue from mobile revenue, and that’s a significant number.

It’s a small chunk of the overall $78.6 million in revenue Kayak took in during the quarter, but the mobile portion is growing.

Overall Q3 numbers:

  • Revenue: $78.6 million, a 29% increase from $61.2 million in the third quarter of 2011.
  • Adjusted EBITDA: $21.1 million, a 19% increase from $17.7 million in the third quarter of 2011.
  • Net Income: $8.0 million, a 14% increase from $7.0 million in the third quarter of 2011.
  • International: Revenue from non-US geographies was $17.3 million for the third quarter 2012, a 40% increase from $12.3 million in the third quarter of 2011.
  • Queries growth: 302 million queries across its sites and mobile applications, a 31% increase from 231 million queries in the third quarter of 2011.
  • App downloads: Downloaded 3.1 million times, a 95% increase compared to the third quarter of 2011.