AirHint found the following cheapest return flights from Seattle (SEA) to Kuala Lumpur (KUL) in April 2026 (see full year).
Return flights
| 14 Apr - 29 Apr | Singapore Airlines | ||
| 14 Apr - 24 Apr | Singapore Airlines | ||
| 06 Apr - 19 May | Delta | ||
| 06 Apr - 20 May | EVA Air |
Also check the deals for one-way flights from Seattle to Kuala Lumpur in April.
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