AirHint found the following cheapest one-way flights from Seattle (SEA) to Beijing (PEK) in March 2026 (see full year).
One-Way flights
| 26 Mar | Hainan Airlines | ||
| 28 Mar | Korean Air | ||
| 25 Mar | Korean Air | ||
| 05 Mar | Korean Air | ||
| 28 Mar | Hainan Airlines | direct | |
| 15 Mar | Philippine Airlines |
Also check the deals for return flights from Seattle to Beijing in March.
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