飞行的 UA4503 里士满机场（里士满） – 杜勒斯机场（华盛顿）由United Express 1%次：期三。
航班時間是1小时 5分钟。
回程航班： UA4278, UA4471, UA4473, YX9912,
所有航班里士满 — 华盛顿
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