價格以新臺幣顯示。

搜尋台北 臺灣桃園國際機場飛往大阪國際機場的便宜機票

TPE - ITM

搜尋台北 臺灣桃園國際機場飛往大阪國際機場的便宜機票

同時搜尋數百家旅遊網站,為你尋找飛往大阪國際機場的機票優惠

來回
經濟艙
台北 (TPE)
大阪國際機場
6月25日 週五
7月2日 週五
任何月份
比較KAYAK和 |

有用資訊

淡季

12月避開人潮的最佳時機,價格平均可下降36%

旺季

1月最熱門的出行時段,價格平均可高21%

來回平均價格

NT$10,297(過去兩週的平均價格)

來回超值優惠

NT$10,304或以下

預訂台北 臺灣桃園國際機場飛往大阪國際機場機票的最佳時機

來回機票估價
每月平均價格
臨近出發日期的機票價格走勢

搜尋便宜機票小秘訣

  • 想找便宜機票?25%搜尋此航線的用戶找到NT$10,304或更低的來回機票價格。
  • 一般而言,出發前43天可以最低價格預訂從台北 臺灣桃園國際機場飛往大阪國際機場的機票。
  • 想以低於平均價格訂機票,應提前最少4星期預訂。
  • 12月、1月及2月為旅遊旺季。12月的機票最便宜。
  • 早上出發的航班平均較晚間出發的航班便宜29%。*
*KAYAK搜尋結果(未來30天內出發)中的平均最低價

預訂台北 臺灣桃園國際機場飛往大阪國際機場機票的常見問題

從台北 臺灣桃園國際機場飛往大阪國際機場需要多久?

從台北 臺灣桃園國際機場飛往大阪國際機場,哪些航空公司的機票最便宜?

從台北 臺灣桃園國際機場飛往大阪國際機場,哪一天出發最便宜?

KAYAK如何找出從台北 臺灣桃園國際機場飛往大阪國際機場的便宜機票?

KAYAK的機票「價格預測」工具如何幫我選擇好時機購買從台北 臺灣桃園國際機場飛往大阪國際機場的機票?

從台北 臺灣桃園國際機場飛往大阪國際機場的機票有KAYAK組合選項,它是什麽?

KAYAK的「彈性日期」功能是什麽?在搜尋從台北 臺灣桃園國際機場飛往大阪國際機場的機票時,我爲什麽該使用這個功能?

從台北 臺灣桃園國際機場飛往大阪國際機場的熱門航空公司

根據KAYAK顧客評價得出的評分

8.7
日本航空
根據4,512則評價得出的總分
8.9
登機
8.6
舒適
9.0
機艙服務員
8.5
娛樂
8.4
食品
航空公司評價

優點: "The crew is outstanding. A girl two seats away from me barfed and two attendants were there immediately with a bag, cleaning wipes, etc. They are very friendly and patient with passengers. The next best part was the comfort. I got a good amount of sleep on my nine-hour flight."
缺點: "The movie selection and meals were not bad, but I've had better on other airlines."

優點: "Crew members are extremely friendly and the seat has more leg room."
缺點: "in flight entertainment can add more movie and TV shows."

缺點: "Kiosk, bag service, One World Integration"

優點: "她們很对工作有熱誠,很照顧乘客"
缺點: "已經很不错"

優點: "On time. Boarding was great. Flight wasn’t full so plenty of room to stretch out."

優點: "Excellent Service, food and beverage. Comfortable aircraft cabin atmosphere."
缺點: "in-flight Wifi is not working"

優點: "The food on the plane is really good. The airline assistants are very friendly. The whole trip is really comfortable."
缺點: "The travel is too long for me. If there’s a direct flight, it only takes 12 to 13 hours for me to land but this trip took me 19 hours because the weather and they have to change the transfer spot to another in Japan."

優點: "The business class layout was very good. Seats comfortable with excellent cabin staff and the food and its presentation was A+"
缺點: "Hard to think of something here...possibly better movie selection and having to bus from plane to terminal... But that's about it!"

優點: "even though middle seat, there was enough leg room to rest comfortably."

優點: "The crew"
缺點: "Being late"

優點: "i cancelled my flight and still have not got my money returned"
缺點: "I dont have my return but you take it right away"

優點: "Our flight was delayed due to lightning strike on arriving flight, we were transferred to non stop EVA Airline so we can get home and not need a connecting flight in Japan. JAL did all these arrangements without us requesting it. They also were very polite and got our luggage in time to be on the flight with us. JAL is truly a top airline in the world."
缺點: "None"

優點: "服務 電影 雪糕"
缺點: "飯不好"

缺點: "The crew kept accidentally bumping my chair and never apologized"

優點: "JAL is great!"
缺點: "Nothing"

優點: "It was short flight.. I slept good through."

優點: "I had to change my flight and it was a terrible experience, I will book directly with the airlines from now on."

優點: "Their customer service is excellent! when I left my card (fell out of my pursue while in transit), they called me immediately! After a long vacation, exploring. I was extremely tired and and left my phone completely on silent for 4 days, and within those 4 days they called and left me messages. Lucky I live here in Hawaii, can you imagine being a tourist and you lost your card? Excellent customer service."
缺點: "Nothing"

優點: "The crew was friendly, and the view from the window was stunning."
缺點: "There wasn't enough leg space; it would be nice if the entertainment system had usb charging available."

缺點: "Our flight was delayed for two hours. We have a connecting flight from Osaka to Los Angeles, which we were worried we couldn't make it. They told me the flight will wait for us because there were 20 plus people also need to get on that plane. When the time of boarding we heard they were calling us to the front and explained the flight we were suppose to be connecting already took off. They had to booked us to another airline. We were extremely disappointed! We asked if we could took another Japanese airline but they said our luggages were already transferred to that airline and the tickets were printed! Mosf importantly we have already waited in airport 5 hours and they needed us to wait for another 3 hours! Very bad experience with how they dealing with this situation!"

優點: "No wait at JAL business class checkin.....security and immigration were slow, didn't see a separate line for business class if it existed. Access to Korean lounge, was fairly standard. Crew very friendly once on board. Plenty of good food and drink for a relatively short flight."
缺點: "IFE in armrests,not in back of seat in front. Limited liquor options onboard (just chivas)."

優點: "The crew, the flight, the pilot to cabin communications, the food, USB hookup, and the movie selection was amazing. I am so happy that I flew Japan Airlines on my return trip. I would highly recommend them for your international travels."
缺點: "The flight was extremely late to leave and I almost missed my connecting flight in Osaka"

優點: "No major disasters, comfortable seats, on time."

優點: "service was excellent. Seating was OK in spite of it being economy."
缺點: "One meal was sufficient in quantity, mediocre in quality. Other meals and snacks were skimpy in frequency and quantity."

優點: "The staff"

優點: "Movie choices"
缺點: "Too small, too hot. Not enough air conditioning. China air was better. Only one meal choice. No choice for vegetarians or allergies. Didn't warn about the rain, stairs were slippery"

優點: "Simply excellent !!!"

優點: "The seats were quite small but other than that it was a nice flight. The crew was very nice."

優點: "Excellent service. Flight attendants are consistantly helpful and friendly."

優點: "Superior service in a great and spacious plane."
缺點: "Seats are a bit flat and shallow, besides that it was awesome!"

優點: "The food is very delicious. I can choose a lot of great movies. The space is also big to move."

優點: "I feel like I got way more than what I paid for with this airline! The hostesses were super friendly always offering some sort of beverage, the food was tasty (Be careful not to drop noodles on yourself like I did, those bad boys left a little mark). The video selection wasn't huge, but it was definitely adequate with good titles. Maybe I haven't noticed this before in other airlines, but they had new toothbrushes (packaged, not someone's forgotten toothbrush) in the restroom so the poor sap next to me didn't have to smell my stinky breath. Finally, they were quick with boarding! They were very punctual and we took off right when we got on, so nice!"
缺點: "The seats were pretty adequately sized, however, I felt like I couldn't lay back too far or if the the person in front of me did, it made it really difficult to get the seats. Also, I thought it was my headphones, but it happened on a couple of flights with different headphones, but the audio only comes out of one earphone which was slightly annoying... Other than those things, JAL is super solid and I would recommend it to anyone considering them."

缺點: "Leg room"

優點: "Curteous and pleasant."
缺點: "All packed the plane. Tight."

優點: "Airplane is well kept. Snacks are available near the beverage area."

優點: "The flight attendants are quick in services and with great manner. Cabin foods are generous, filled with variety and tasting the best among various international airlines that I have experienced between LAX and Taipei, Taiwan in the past ten years. The seat belt on light and bell were kept at minimal, in contrast to other airlines like EVA, China Airlines, Korean Airlines and United Airlines."
缺點: "None"

優點: "From start to finish, we were amazed by the customer service of Japan Airlines. Altogether we we had a 14-hour day or so of flying with two small children and it could have easily been a 20-hour-or-more day of flying had Japan Airlines not been so great at what they do. We can't say enough about how amazed and blessed we were by their customer service."
缺點: "Having to pay for wifi and not having access to power outlets. Everything else was amazing and honestly these minor things were very forgivable given the great entertainment choices that came along with the plan ride and and the amazing customer service."

優點: "A meal on a two hour flight is an amazing perk!"

優點: "I have gotten used to long flights on various American airlines where it seems the staff do the minimal amount. Service is so incredibly better on Japan Airlines. Staff respond when you ask for assistance. They smile and work with the passengers. They were actively present almost all the time which was amazing. There is just no, "no," on Japanese Airlines. I loved the media options."
缺點: "It has been a while but the food was not as good as I remembered from way back when, or maybe that was Korean Air? It was, however, hot when it should be hot and cold when it should be cold."

優點: "It was anything very good, my trips on air are great. all flight attendant did good job.i got good slept well on flight JL 060.so I will choice Japan Airline next time. Thank you very much"

優點: "Very comfortable, good movie/entertainment choices, great crew"

優點: "Staffs areattentive"
缺點: "Chair space so limited"

優點: "Comfortable and spacious for economy class. Very helpful staff."
缺點: "If I have to be picky the movie selection didn't seem great."

優點: "Last minute accommodation for Muslim meal was awesome!"
缺點: "Transit in NRT was too short! Didn't give me time to buy souvenirs.."

缺點: "The main entree was not very good."

優點: "Entertainment was excellent"
缺點: "I'm an entertainer, very well respected in Hawaii, Japan and the world. and has always traveled JAL. I travel with my guitar and has never had a problem carrying it on board. The staff will usually come a get it and put it in the closet if it didn't fit in the overhead. But I guess recently rules change, and was told I would have to check it in because the closet space is used only for staff and business people. Was told that the 737 was to small for my guitar won't fit overhead. I have taken 737's all my life with Aloha Airlines and told them that my guitar would fit. That gentleman was a JERK! and was'nt very helpful, and told me I couldn't take it on board and I would have to take it to the package store and have them box it up. That spoiled my whole vacation."

優點: "Finally arriving"
缺點: "AA waited 4-hours to cancel the flight with 24-hours to the next flight.. Breakfast voucher didn't cover a third of the cheapest breakfast in the hotel where I was sent for the night. Even the flight the next day, sunny, was delayed."

優點: "the crew was extraordinarily helpful in getting me through customs with my luggage which i was lead to believe did not need to be looked at in Tokyo because it was checked through to Osaka by finding me taking me back through customs and onto the flight in time for its departure. JAL's crews on both flights and the ground personnel were very courteous and always extremely helpful."

優點: "It seemed more spacious. Food was pretty good."

優點: "The crew was awesome. They went above and beyond."

缺點: "I was not aware that I flew in Narita and flew out of another airport."

優點: "Great experience all together"

優點: "Loved the Kabuki actors used for safety instructional video - stay for the ending credits!"
缺點: "Boarding felt like a standing cattle call. Some - not all - stews acted as though they were insulted to have to provide food and beverage service, as though they were too tired and/or impatient to deal w/ economy class."

缺點: "if the seat can be reclined a little more"

優點: "Their friendliness And care for the passengers"
缺點: "i can not think of anything."

優點: "Food was good"
缺點: "Disappointed with some of flight attendants. ANA used to provide best customer service."

缺點: "Seats are a little narrow near the window."

優點: "Empty seats"
缺點: "Only snack No entertainment No chargers"

優點: "Same level of exceptional service on this second leg of my journey. I am looking forward to my next two flights with ANA when i return home."

優點: "Food and entertainment has to be better."
缺點: "In Chicago, the flight was delayed for almost 4 hours which in turn made us miss our connecting flight to Jakarta. Then next flight available flight to Jakarta was 24 hours later."

優點: "Even though the flight was around 45 min, still got a nice cup of consomme soup while I was working on the in-flight WiFi. Overall good for a short flight but basic interior with poor visibility of safety video on 787-9."
缺點: "Boarding is a bit chaotic. Only people at the front of the queue can see the correct places to stand, so many people were trying to push in the front of the queue because the signs weren't visible from some angles or from far away. Basically couldn't see the inflight safety videos from my seat (17K) because of the curvature of the overhead bins and positions of the few screens (no seat-back monitors)."

優點: "Pretty much everything"

優點: "Great food"
缺點: "Leg room"

缺點: "The flight was delay .and I can’t able to catch my connecting flight I have to extra money for other connection flight"

優點: "Service and the fact that flight was not full provided for a better experience. Staff was super friendly and attentive. The films were new and tv was big! Food was ok."

優點: "Good food. The seats were spacious enough. I used both the pillow and blanket provided. Lots of drinks were served keeping everyone hydrated. Enough staff to manage the needs of everyone."
缺點: "How loud and aggressively the toilet flushes."

優點: "Everything"
缺點: "Nothing. It was perfect. Comfortable, cute stewards"

優點: "Service is Stellar"
缺點: "Business class seats were a bit old"

缺點: "I was very disappointed with the new release movie selection. For a 12 hour flight, there seemed to be more foreign movie options than American new releases."

優點: "Attendants were friendly."
缺點: "Flight was late."

優點: "- Airfare Price - Ease of Checking In - Friendliness of Staffs - Aircraft is clean"
缺點: "- Entertainment options were limited - Food choices limited as well - Seats are a bit stiff and small"

優點: "Good food, seats were comfy enough for a 4.5-hr flight."
缺點: "Better Hollywood options for entertainment."

優點: "Configuration of your 787-800 Busn./ Class,was nothing more than an updated 707 from the past. Crew was good food was average. A flight I may avoid."

缺點: "The flight left late and it was extremely hot in the cabin. It was a good thing that our connecting flight was a couple of doors down or we would not have made it, we sat on the runway waiting for our turn"

缺點: "More of an movie selection. Maybe up date movie ever 2-3 weeks as they become available for the company"

優點: "Same thing"
缺點: "I did not like in air port new Delhi my suite case was a damaged Told to air port employee he said may stuck in belt."

缺點: "I missed it due to delayed flight from LAX"

優點: "the service were fantastic. the flight attendants were very courteous; offering food & snacks and drinks non-stopped. overall, the services offered were great."
缺點: "the temperature inside was overwhelmingly hot made it impossible to relax. in a crowded airplane, such environment is perfect for customers to acquire upper respiratory infection once they have to share the air with others. please adjust the air temperature. thanks"

優點: "Legroom is good, you don't need to recline the seat"
缺點: "Food wasn't the best"

優點: "The entertainment and food were very good. It’s a long flight, so more cushions in the seat would be great. I felt like my tailbone was getting bruised."
缺點: "The entertainment and food were very good. It’s a long flight, so more cushions in the seat would be great. I felt like my tailbone was getting bruised."

優點: "Flight spot on time."
缺點: "Can't think of a better thing"

優點: "Generous for portions. Crew were awesome. The interface was easy and had lots of options"
缺點: "Main food dish was combinations of flavors I would never put together. Lack of leg room."

優點: "Wonderful leg room for the flight, great selection of movies, wonderful staff, food is excellent, bathroom clean and large for airplane. Truly this was a fantastic experience"
缺點: "Nothing, they did run out of my breakfast food choice but the other choice ended up being great so Can't complain...."

優點: "Courteous and friendly staff, clean aircraft and on-time schedule."
缺點: "There was nothing I did not like."

優點: "Efficient, courteous crews,"
缺點: "Luggage check-in referred to United Airline was refused.JetBlue checked luggage to final destination efficiently."

優點: "Most comfortable economy flight I've ever taken, good legroom, excellent customer service, tasty food, best toilets!"

缺點: "We didn't hear the announcement that the gate for our flight had changed. I just happened to look at the flight info and noticed our flight was not listed. I went to the desk then I was informed of the change. Poor service."

缺點: "Service"

優點: "Good staff, good service, good entertainment"
缺點: "Although my partner and I bought our tickets together and booked them almost 9 months in advance, we were not seated together, which made the flight more difficult and uncomfortable."

優點: "Service was amazing."
缺點: "Nothing."

優點: "I could upgrade my seat from a regular economy seat to a premium economy seat about 24 hours in advance. The flight attendants were generally attentive and thanks to the kindness of my ajacent passenger to my left, I could sometimes go to restrooms."
缺點: "I usually take an aisle seat, but it was not available this time. Furthermore, my ajacent passenger to my right hand side had cold and often coughed and I myseld caught cold from him during this flight...."

缺點: "Flight were shaking badly several times and I feel dizzy"

優點: "I've flown to Asia many, many times and NH is the best of all the carriers I've used."

優點: "Great movies!!"
缺點: "Terrible seats- difficult to find s confirtsble position."

優點: "In-flight service from staff was excellent as always, food is good but not outstanding (but let's be clear this was economy class), movie selection is good."
缺點: "From Japan to other places they're always organised, but boarding in London was a little chaotic which is a common problem for ANA flights in other countries *to* Japan - they hadn't set up signs properly or made clear announcements for families with children, First Class, Business class boarding etc. The First Class/Diamond status queue (not for me!) was actually set up in front of a supporting pillar, basic organisational things like that. On balance though, still a top-class airline."

優點: "As always, the Japanese customer service is wonderful - I have no complaints in that department!"
缺點: "The boarding process is pretty annoying....they do not board until minutes before the flight time and we still had to take a bus to the actual plane. We took off late (which, personally, at this point, I had just been on a 14 hour flight plus the 2 hours layover) - a delay just added to the exhaustion. Also, the plane was very old and very hot...even though it was only a one hour flight, it was very uncomfortable and outdated."

優點: "Everyone crew members was very friendly and helpful. I"

優點: "I liked my seat. It was in the first row behind first class. The ticket lady was very nice and patient"
缺點: "I was very frustrated because I thought I had 90 minutes between flights but by the time I got my luggage it was too late to get my scheduled plane. This forced me to wait two hours for the next plane after I had been on a plane for 13 hours."

優點: "Food was delicious, crew was very nice and attentive. Plane was very new and clean"
缺點: "Delay on tarmack at airport. No fault of ANA"

更多關於日本航空的資訊
新型冠狀病毒(COVID-19)資訊

從台北 臺灣桃園國際機場飛往大阪國際機場的航空公司的安全措施

從台北 臺灣桃園國際機場飛往大阪國際機場的航空公司已制定額外安全措施及調整航空公司政策,為旅客提供更佳服務。實際政策根據航空公司而定。

加強消毒

每天清潔,並在台北 臺灣桃園國際機場飛往大阪國際機場的機艙內安裝HEPA高效濾網

強制配戴口罩

旅客在機艙內必須全程佩戴口罩,台北 臺灣桃園國際機場飛往大阪國際機場的機上會提供口罩

保持社交距離的座位

台北 臺灣桃園國際機場飛往大阪國際機場的航班不能預訂中間座位

登機前檢疫

從台北 臺灣桃園國際機場飛往大阪國際機場的乘客必須檢測病毒抗體及檢查症狀

預訂從台北 臺灣桃園國際機場飛往大阪國際機場的特惠機票

最新往返機票優惠

12月3日
週五
轉機1次
日本航空
7小時20分鐘
TPE - ITM
1月20日
週四
轉機1次
日本航空
7小時35分鐘
ITM - TPE
11月22日
週一
轉機2次
多間航空公司
18小時30分鐘
TPE - ITM
11月28日
週日
轉機2次
多間航空公司
27小時45分鐘
ITM - TPE
11月22日
週一
轉機1次
日本航空
7小時15分鐘
TPE - ITM
11月26日
週五
轉機1次
日本航空
7小時35分鐘
ITM - TPE
8月6日
週五
轉機1次
全日空航空
7小時40分鐘
TPE - ITM
8月9日
週一
轉機1次
全日空航空
6小時45分鐘
ITM - TPE
11月22日
週一
轉機1次
日本航空
7小時15分鐘
TPE - ITM
11月25日
週四
轉機1次
日本航空
7小時35分鐘
ITM - TPE
10月1日
週五
轉機1次
日本航空
8小時55分鐘
TPE - ITM
10月10日
週日
轉機1次
日本航空
7小時20分鐘
ITM - TPE
11月22日
週一
轉機2次
多間航空公司
18小時30分鐘
TPE - ITM
11月29日
週一
轉機2次
多間航空公司
20小時45分鐘
ITM - TPE
8月31日
週二
轉機1次
日本航空
16小時40分鐘
TPE - ITM
4月20日
週三
轉機1次
日本航空
7小時20分鐘
ITM - TPE
7月20日
週二
轉機1次
多間航空公司
8小時20分鐘
TPE - ITM
7月24日
週六
轉機1次
多間航空公司
8小時35分鐘
ITM - TPE
10月1日
週五
轉機1次
日本航空
8小時55分鐘
TPE - ITM
10月5日
週二
轉機1次
日本航空
7小時20分鐘
ITM - TPE
10月11日
週一
轉機1次
日本航空
7小時35分鐘
TPE - ITM
10月14日
週四
轉機1次
日本航空
8小時25分鐘
ITM - TPE
8月31日
週二
轉機1次
全日空航空
11小時25分鐘
TPE - ITM
9月1日
週三
轉機1次
全日空航空
6小時45分鐘
ITM - TPE
9月30日
週四
轉機2次
多間航空公司
17小時00分鐘
TPE - ITM
10月10日
週日
轉機2次
多間航空公司
13小時15分鐘
ITM - TPE
8月5日
週四
轉機1次
全日空航空
9小時20分鐘
TPE - ITM
8月8日
週日
轉機1次
全日空航空
9小時55分鐘
ITM - TPE
11月22日
週一
轉機2次
日本航空
25小時35分鐘
TPE - ITM
11月27日
週六
轉機1次
日本航空
14小時15分鐘
ITM - TPE
7月22日
週四
轉機1次
多間航空公司
10小時25分鐘
TPE - ITM
7月26日
週一
轉機2次
多間航空公司
22小時30分鐘
ITM - TPE
11月22日
週一
轉機2次
日本航空
25小時35分鐘
TPE - ITM
11月28日
週日
轉機1次
日本航空
14小時15分鐘
ITM - TPE
9月23日
週四
轉機1次
全日空航空
9小時40分鐘
TPE - ITM
9月27日
週一
轉機1次
全日空航空
7小時40分鐘
ITM - TPE
8月6日
週五
轉機3次
多間航空公司
27小時00分鐘
TPE - ITM
8月9日
週一
轉機1次
多間航空公司
10小時25分鐘
ITM - TPE
11月22日
週一
轉機1次
日本航空
7小時15分鐘
TPE - ITM
11月27日
週六
轉機1次
日本航空
14小時15分鐘
ITM - TPE
顯示更多結果

最新單程機票優惠

8月31日
週二
轉機1次
日本航空
14小時40分鐘
TPE - ITM
7月1日
週四
轉機1次
多間航空公司
9小時50分鐘
TPE - ITM
11月6日
週六
轉機1次
日本航空
8小時55分鐘
TPE - ITM
7月1日
週四
轉機2次
多間航空公司
50小時30分鐘
TPE - ITM
11月6日
週六
轉機2次
多間航空公司
24小時55分鐘
TPE - ITM
8月31日
週二
轉機2次
多間航空公司
29小時50分鐘
TPE - ITM
7月1日
週四
轉機3次
多間航空公司
29小時40分鐘
TPE - ITM
11月6日
週六
轉機3次
多間航空公司
24小時40分鐘
TPE - ITM
顯示更多結果
-
1
  • 來回
  • 單程
  • 多程
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
  • 多個艙等
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙
經濟艙
  • 經濟艙
  • 豪華經濟艙
  • 商務艙
  • 頭等艙