从西雅图飞往华盛顿机票含税$129 起
掌握动态收取机票价格下降或上涨的通知*
明智之选预订机票后，加订精选酒店最多可省 30%*
西雅图至华盛顿的廉价航班 (SEA-DCA)
华盛顿附近的其他机场
价格是过去七天内可以订到的价格。价格和供应情况可能会有所变动。
常见问题
从西雅图 - 塔科马国际机场飞往罗纳尔德里根华盛顿国家机场的机票价格是多少？
从西雅图 - 塔科马国际机场到罗纳尔德里根华盛顿国家机场的往返飞机票价低至 $246。低廉价格不要错过！此价格根据过去 7 天 Expedia 针对未来一年出发的航班所提供的数据得出。价格和供应情况可能会有所变动。需遵守其他条款。
如果要取消从 SEA 飞往 DCA 的航班，需要支付取消费用吗？
每个航空公司都有自己的条款和条件，若决定取消预订，请访问我们的客服版块，了解相关步骤。
如果要从西雅图 - 塔科马国际机场飞往罗纳尔德里根华盛顿国家机场，我该如何找到有灵活变更政策的便宜机票？
许多航空公司都提供免费变更航班的服务，您只需补足新旧机票之间的差价即可。在搜索从西雅图 - 塔科马国际机场 (SEA) 飞往罗纳尔德里根华盛顿国家机场 (DCA) 的航班时，可以选择"无变更费"的筛选条件。
从西雅图, 华盛顿州 (SEA - 西雅图 - 塔科马国际机场) 到华盛顿, 华盛顿特区 (DCA-罗纳尔德里根华盛顿国家机场) 的飞行距离是多少？
此趟旅程的飞行时间可能会久一点，因为 SEA 距离 DCA 3,700 公里，所以记得要在登机前整理好喜爱的歌曲，在飞机上享受宁静时光。
有哪些航空公司提供从西雅图 - 塔科马国际机场 (SEA) 直飞罗纳尔德里根华盛顿国家机场 (DCA) 的航班？
许多游客会选择搭乘 Alaska Airlines（AS）。这家航空公司每月安排 5 个班次的航班自西雅图 - 塔科马国际机场飞往罗纳尔德里根华盛顿国家机场，立刻就预订符合您旅途规划的机票吧！
如果等到最后一刻才预订西雅图 - 塔科马国际机场到罗纳尔德里根华盛顿国家机场的机票，是不是会比较便宜？
在 Expedia 上查找从 SEA 飞往 DCA 的航班，旅客最早可以看到出发前 12 个月的信息。虽然在最后一刻预订偶尔会出现超值票，但这么做并不保险。相较之下，早点预订除了可享多种选择，还可以自己挑选座位，好处颇多。所以请持续关注我们的网页，Expedia 会经常更新票价信息，让您享受超划算的折扣。
我现在可以搭乘从西雅图, 华盛顿州 (SEA - 西雅图 - 塔科马国际机场) 飞往华盛顿, 华盛顿特区 (DCA-罗纳尔德里根华盛顿国家机场) 的航班吗？
关于华盛顿, 华盛顿特区 (DCA-罗纳尔德里根华盛顿国家机场) 当前的旅行警示和隔离要求，请浏览 COVID-19 旅行顾问页面。请在预订机票之前确认，以免影响行程。
旅行信息
出发机场 | 西雅图 - 塔科马国际机场 |
|---|---|
到达机场 | 罗纳尔德里根华盛顿国家机场 |
距离 | 距离 2,322 英里 |
提供航班的航空公司 | 阿拉斯加航空, 捷蓝航空, 美国航空, 达美航空, Southwest Airlines, 联合航空, 边疆航空 |
热门航空公司 | 阿拉斯加航空 |
往返票价 | $246 |
平均飞行时长 | 5 小时 10 分 |
放心预订
Seattle to Washington Flights
The cheapest times to fly from Seattle to Washington
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Washington are during the month of 9月. You can find some of the cheapest flights from Seattle to Washington with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Seattle to Washington
Sunday is one of the best days to book for cheap flights from Seattle to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Seattle to Washington
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $129 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.