AirHint found the following cheapest return flights from Washington (IAD) to Cape Town (CPT) in December 2025 (see full year).

Return flights

05 Dec - 12 Dec	Turkish Airlines
06 Dec - 13 Dec	Turkish Airlines
11 Dec - 15 Dec	Ethiopian Airlines
09 Dec - 15 Dec	Ethiopian Airlines
28 Dec - 11 Jan	Ethiopian Airlines
29 Dec - 09 Jan	Ethiopian Airlines
10 Dec - 16 Dec	Ethiopian Airlines
13 Dec - 28 Dec	Turkish Airlines
13 Dec - 29 Dec	Turkish Airlines
23 Dec - 01 Jan	Ethiopian Airlines
29 Dec - 09 Jan	United	direct
22 Dec - 02 Jan	Turkish Airlines
18 Dec - 06 Jan	Ethiopian Airlines
23 Dec - 02 Jan	Ethiopian Airlines
19 Dec - 03 Jan	Turkish Airlines
21 Dec - 03 Jan	Turkish Airlines
18 Dec - 06 Jan	United	direct

Also check the deals for one-way flights from Washington to Cape Town 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 Cape Town

Cheap car rent in Cape Town

Cheapest return flights from Washington to Cape Town in December from $957

Return flights