Grand Lake Regional Airport (IATA: NRI, FAA LID: 3O9) is a privately owned, public use airport in Delaware County, Oklahoma, United States.

[1] It is located on Monkey Island, a peninsula on the northern shore of Grand Lake o' the Cherokees.

The airport is nine nautical miles (10 mi, 17 km) southeast of Afton,[1] a city in Ottawa County, Oklahoma.

[2] Grand Lake Regional Airport covers an area of 60 acres (24 ha) at an elevation of 792 feet (241 m) above mean sea level.

[1] For the 12-month period ending October 7, 2009, the airport had 7,000 general aviation aircraft operations, an average of 19 per day.