智选升级适用于所有经济客舱及特选经济客舱票价类别，奖励机票除外。请浏览我们的智选升级页面以了解更多详情。
更多有关票价级别自选附加项目的信息
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Can I purchase add-ons, such as advance seat reservations, after purchasing my ticket?
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I purchased Economy Essential/Flex fares but seats in the seat type of my choice are unavailable. Can I get a free refund for my ticket?
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I purchased Economy Essential/Flex fares and reserved my seat in advance free of charge. Is my seat reservation guaranteed?
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I’d like to reserve my seat in advance, but the other benefits included in the higher fare type are not applicable to my trip. What are my options?
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For early standby, can I take a flight a day earlier than planned?
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Is Upgrade Bid available for all fare types?