AirHint found the following cheapest return flights from Washington (IAD) to Beijing (PEK) in May 2026 (see full year).

Return flights

07 May - 17 May	Emirates
08 May - 17 May	Emirates
29 May - 19 Jun	Brussels Airlines
19 May - 05 Jun	Alaska Airlines
21 May - 18 Jun	Porter Airlines (Canada) Ltd
26 May - 16 Jun	Lufthansa
30 May - 16 Jun	Air France
27 May - 17 Jun	Air France
26 May - 17 Jun	Air France
22 May - 16 Jun	Air France
25 May - 18 Jun	Air France
22 May - 19 Jun	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Washington to Beijing in May.

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 Washington to Beijing in May from 1145€

Return flights