AirHint found the following cheapest return flights from Phoenix (PHX) to Delhi (DEL) in December 2025 (see full year).

Return flights

03 Dec - 13 Jan	Lufthansa
04 Dec - 12 Jan	Lufthansa
10 Dec - 15 Jan	Frontier Airlines
10 Dec - 16 Jan	Frontier Airlines
07 Dec - 16 Dec	Delta
15 Dec - 12 Jan	Lufthansa
16 Dec - 12 Jan	Lufthansa
13 Dec - 20 Jan	Lufthansa
10 Dec - 07 Jan	SWISS
14 Dec - 20 Jan	Lufthansa
06 Dec - 13 Jan	Delta
14 Dec - 30 Dec	Lufthansa
18 Dec - 25 Dec	Delta

Also check the deals for one-way flights from Phoenix to Delhi 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.

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Cheapest return flights from Phoenix to Delhi in December from $909

Return flights