Prepared Remarks:

Operator

Good afternoon, everyone, and welcome to Booking Holdings second quarter 2022 conference call. Booking Holdings would like to remind everyone that this call may contain forward-looking statements, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are not guaranteed of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Therefore, actual results may differ materially from those expressed, implied, or forecasted in any such forward-looking statements.

Expressions of future goals or expectations and similar expressions reflecting something other than historical fact are intended to identify forward-looking statements. For a list of factors that could cause Booking Holdings' actual results to differ materially from those described in the forward-looking statements, please refer to the safe harbor statements at the end of Booking Holdings' earning press release, as well as Booking Holdings' most recent filings with the Securities and Exchange Commission. Unless required by law, Booking Holdings undertakes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events, or otherwise. A copy of Booking Holdings' earnings press release, together with an accompanying financial and statistical supplement, is available in the For Investors section of Booking Holdings' website, www.bookingholdings.com.

And now I would like to introduce Booking Holdings speakers for this afternoon: Mr. Glenn Fogel, CEO; and Mr. David Goulden, CFO. Go ahead, gentlemen.

Glenn Fogel -- Chief Executive Officer

Thank you, and welcome to Booking Holdings second quarter conference call. I'm joined this afternoon by our CFO, David Goulden. I am pleased to announce that we reached another milestone in our company's recovery with room nights for Q2 being the first quarter in which we have surpassed 2019 pre-pandemic levels. Our customers booked 246 million room nights in the second quarter, so just shy of 0.25 billion room nights, which represented an increase of 16% versus Q2 2019 and a significant improvement from the 9% decline in Q1.

We continue to see very strong accommodation ADR growth, which helped drive an even higher 38% increase in gross bookings in the second quarter or 48% growth on a constant currency basis. Both our room nights and gross bookings in Q2 were our company's highest quarterly amounts ever for these metrics. While we continue to see bookings growth in July versus 2019, the pace of growth moderated to about 4% for room nights and just over 20% for gross bookings or about 35% growth on a constant currency basis with room night and gross bookings growth slightly improving in the back half of the month versus the comparable weeks in 2019. For the remainder of the summer period through the end of Q3, we see higher gross bookings on the books than at this point in 2019, which we believe will result in a record revenue for the third quarter, which is our seasonally largest revenue quarter.