AirHint found the following cheapest return flights from Washington (DCA) to Rio Negro (MDE) in December 2025 (see full year).

Return flights

01 Dec - 07 Dec	United
03 Dec - 09 Dec	United
06 Dec - 13 Dec	United
04 Dec - 08 Dec	United
31 Dec - 17 Jan	jetBlue
11 Dec - 14 Dec	United
11 Dec - 16 Dec	United
16 Dec - 31 Jan	jetBlue
30 Dec - 17 Jan	LATAM Airlines Group
01 Dec - 11 Jan	American Airlines
06 Dec - 12 Dec	LATAM Airlines Group
03 Dec - 27 Dec	LATAM Airlines Group
23 Dec - 28 Dec	LATAM Airlines Group
22 Dec - 27 Dec	United
18 Dec - 01 Jan	jetBlue
24 Dec - 02 Jan	jetBlue
19 Dec - 04 Jan	jetBlue
20 Dec - 04 Jan	jetBlue
20 Dec - 03 Jan	jetBlue
18 Dec - 03 Jan	jetBlue

Also check the deals for one-way flights from Washington to Rio Negro in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Rio Negro

Cheap car rent in Rio Negro

Cheapest return flights from Washington to Rio Negro in December from $293

Return flights