If there’s a chance that the weather will worsen due to a typhoon or similar conditions, flights might be canceled even before your departure date. However, most delays and cancellations are usually decided at the last minute, so you might not know until just before your flight.

The sooner you know, the easier it will be to adjust your plans, like changing your transportation or accommodation. That’s why it’s important to stay informed—keep checking weather reports and flight statuses regularly.

You can find flight status updates on the airline’s official website or social media accounts. If your flight is canceled or significantly delayed, the airline may also contact you directly at the email address you provided when booking.

If your flight cancellation forces you to extend your stay in Japan, you may end up spending more than you planned, including extra costs for hotels, meals, clothing, and additional travel expenses.

In the event of a power outage, cash may be the only form of payment accepted. Many foreign visitors come from places where cashless payments are common, so they might not be used to carrying much cash. In Japan, credit cards and smartphone payments are widely accepted at major tourist spots and at many ATMs in convenience stores and banks.

However, if a power outage occurs due to bad weather or a natural disaster, credit cards and ATMs may stop working.

Even though power is usually restored quickly, and many evacuation sites will have electricity, you might still need cash if you’re in an area less frequented by tourists where cashless payments aren’t accepted.

If you find yourself in this situation, consider the following options:
・Check if you can pay with or exchange your foreign currency.
・Borrow money from family, friends, or acquaintances in Japan.
・If you have no one to turn to, consult with your embassy or consulate to see if they can act as a guarantor.

In the event of a natural disaster, it's crucial to let your family know you're safe or to check on their well-being. However, immediately after the Great East Japan Earthquake of 2011, the sheer volume of calls overwhelmed phone networks, making it difficult to get through.

Other Ways to Check on Loved Ones' Safety
Fortunately, there are several alternative methods for staying in touch during emergencies. These options not only help you notify others of your safety but can also establish meeting points. Even visitors to Japan can use these temporary services, so it's helpful to be aware of them.

1. Disaster Message: Dial “171”
Telecommunications companies in Japan offer a service to help confirm the safety of family and friends during disasters, helping to avoid network congestion. You can call "171" to leave a message on the phone number of the person you want to contact, or listen to messages from those whose safety you wish to confirm.

Almost all phone lines—landlines, mobile phones, public phones, and IP phones—can be used for outgoing calls, so even foreign visitors in Japan can utilize this service. However, you'll need to know the other person's phone number to use it.

2. Disaster Message Web (Web171)
If you can connect to the Internet using the unified disaster SSID "00000JAPAN (Five Zero Japan)," you can leave a message on a message board via PC or smartphone. As with the phone service, you’ll need the other person’s phone number. Although the URL differs by telephone service provider, all providers are searchable regardless of which one you register with, and English support is available.

3. Disaster Audio Delivery Service
Voice messages can also be sent using smartphone apps from providers like NTT DoCoMo, KDDI (au), Softbank, and Ymobile. If you’ve rented a smartphone during your stay in Japan, you may be able to use these apps. However, note that for feature phones, these apps may not be fully supported, and you might only be able to receive messages.

4. Google Person Finder
If you have Internet access, you can use Google’s Person Finder service to search for loved ones by entering their name or phone number. For Japanese friends and family, you can search using both kanji and hiragana. If the name has an uncommon reading or difficult kanji, it's a good idea to search with hiragana.

This service is also linked to information collected by telecommunications carriers and the Japan Broadcasting Corporation, making it convenient for those who haven't established a specific contact method. It allows you to complete your search without needing to register with multiple services.

If a disaster occurs while you're at the airport, evacuate promptly according to the instructions provided. Post-evacuation services and procedures will vary depending on the airline.

Ticket Changes and Refunds
In cases of unforeseen circumstances, such as typhoons, you can request free ticket changes or transfers to another flight, and in some instances, you may even be transferred to a different carrier. This applies even to tickets that are typically non-changeable or non-refundable. Since airline counters are often crowded with other travelers seeking assistance, it might be more efficient to seek help over the phone or online.

However, if you’re flying with a Low Cost Carrier (LCC), be aware that even in natural disaster situations, tickets may be canceled without the option for a full refund or change. Before booking, be sure to check each airline's disaster policy on their website.

Obtain Delay/Cancellation Certificates
Some airlines may issue certificates for delays of more than 30 minutes or for cancellations. If you need one, be sure to check with the airline.

Arrange Accommodation
If your return flight is canceled and you can't go home, the airline or a travel agency might help arrange accommodation for you. However, you may be responsible for covering the cost.

Aircraft Delay Compensation
Travel insurance and credit card insurance might offer compensation for expenses incurred due to flight delays or cancellations. Check with your insurance provider or credit card company for details.

If you need to file an insurance claim, you’ll typically need an aircraft delay/cancellation certificate and receipts for any accommodation or meal expenses.

Airplanes are often affected by weather-related delays or cancellations, and Japan, being one of the world's most disaster-prone regions, requires extra preparedness. It's wise to discuss safety confirmation methods with your family before your trip and to review them regularly. Additionally, purchasing travel insurance is strongly recommended.