- Track prices by route and date
- Any dates alerts you to significant drops in the month's lowest price
- Carry-on baggage reference size: 56 × 45 × 25cm
- Check each airline's baggage rules before payment
When and on which day of the week is it cheapest to buy?
Search routes to Japan and travel dates on Google Flights, then track prices.
You can track a specific flight, route, and date. If your travel dates are flexible, you can also select Any dates.
| Item | How to verify | Information you receive |
|---|---|---|
| Confirm travel dates | Track searched dates | Major price changes for tracked flights or routes |
| Dates can be adjusted | Track with Any dates | Email when the lowest fare on the route drops significantly over a month |
| Confirm a specific flight | Track after selecting a flight | Email when the price of the selected flight changes significantly |
| No significant drop for Any dates | Keep tracking with Any dates | Regular email updates on the lowest currently available flight prices |
How do I turn on price alerts?
First decide the number of connections, seat class, and number of tickets needed, then enter your departure point and destination in Japan.
- Choose the number of stops and cabin class on Google Flights.
- Enter the number of tickets needed, departure airport, and destination.
- Select the dates you searched or Any dates.
- Turn on Track prices to track the route price.
- If you have chosen a specific flight, track that flight separately as well.
- Check the routes saved in Tracked Flights and their email alert status.
You can also receive alerts when prices on a tracked route are likely to rise or when the current fare may end soon and become more expensive. The alert also includes the estimated increase and confidence level.
Should I pay as soon as I receive the alert?
Do not look at price alone. Check the airline's actual conditions of carriage and baggage allowance before deciding.
- Check that the route and travel date shown in the alert are correct.
- Double-check the number of connections, seat class, and number of tickets.
- Check the airline's carry-on and checked baggage allowances.
- Check restricted items and how to carry batteries.
- Book when all the conditions fit your itinerary.
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How do carry-on baggage dimensions differ from checked baggage limits?
- Carry-on baggage length reference56cm
- Carry-on baggage width reference45cm
- Carry-on baggage height reference25cm
- Total when purchased separately126cm
- Total linear dimension limit for checked baggage on some routes158cm
For this itinerary, buying separately is It is 32cm cheaper.
Calculation basis: Compare the total dimensions of a typical carry-on bag with the common maximum checked baggage dimensions used on some routes.
Offers you can use for this trip
Up to KRW 22,000 off your first flight booking on Trip.com
For the first flight booking only, get KRW 5,000 off purchases of KRW 220,000 or more, or KRW 22,000 off purchases of KRW 550,000 or more.
Average 11% Off When Booking a Flight + Hotel Together on Trip.com
Applies when you book a flight and accommodation together.
What should I check first in the baggage rules?
First check the airline's allowance, followed by size and weight, restricted items, and storage location.
| Item | Reference criteria | Important points to check |
|---|---|---|
| Carry-on baggage | 56 × 45 × 25cm | Includes wheels and handles; varies by airline, seat class, and aircraft type |
| Carry-on baggage weight | Some airlines apply limits starting at 5kg | Check the airline's terms for actual restrictions |
| Checked baggage | Each bag should weigh no more than 23kg | Check allowances by airline and route |
| Maximum checked baggage weight | 32kg per bag in multiple regions | Check regional and airline conditions |
| Checked baggage size | A total linear dimension of 158cm is common on some routes | Check quantity, weight, and size limits by route |
If overhead storage is limited, your carry-on baggage may be moved to the cargo hold at the gate. Do not place valuables or hard-to-replace items in checked baggage.
How should I pack batteries and liquids?
Carry power banks, spare batteries, and e-cigarettes in your carry-on baggage, and check the departure location’s security rules for liquids.
- Protect each spare battery individually to prevent short circuits.
- Completely power off electronic devices packed in checked baggage.
- Do not pack sharp objects or cutting tools in your carry-on baggage.
- In many countries, liquid containers must not exceed 100ml.
- Place liquid containers in a transparent, resealable bag of 1 liter or less and present it separately at security.
- Medicines, baby food, and special dietary items are generally exempt.
Some airports conduct additional screening for powders over 355ml. For medical items such as syringes, prepare documents proving medical necessity and have them professionally packed and labeled.
What if my checked baggage doesn't arrive?
If your bag does not arrive at baggage claim, file a missing baggage report in that area before leaving the airport.
99.5% of baggage worldwide arrives with its passengers, and most mishandled bags are returned within 48 hours. Problems are common at transfer points with short connection times or flight disruptions.