Singapore Airlines Check-In Policy

Flying Singapore Airlines from Australia? Check-in rules and deadlines often cause confusion, leading to unnecessary stress at the airport. This blog covers when to check in, how to do it, and what rules apply before your flight departs. Read on for clear, practical advice so your next Singapore Airlines departure runs smoothly from start to finish.

Singapore Airlines Check-In Policy, Methods & Deadlines

The Singapore Airlines check-in policy explains the official time window and methods available for confirming your presence on a flight. It also sets the cut-off time after which the airline may deny boarding, even if you hold a valid ticket.

The policy also covers:

Online check-in through the official website
Mobile app check-in with digital boarding passes
Self-service kiosks at selected airports
Airport counter check-in for passengers who need assistance

We cover each method below, along with the specific deadlines you need to meet when flying from Australia.

Online / Web Check-In

This is the most popular and convenient option for most travellers. Singapore Airlines allows passengers to check in online 48 hours before departure. This applies to most flights across its global network. Online check-in closes 1.5 hours before the scheduled departure time.

Follow these steps to complete your Singapore Airlines web check-in:

Access the Check-In Portal
Navigate to the official Singapore Airlines website and select the “Check-in” option on the homepage. You can also use the Singapore Airlines mobile app if you prefer checking in from your phone.
Enter Your Details
Enter your 6-character booking reference (PNR) or 13-digit e-ticket number, along with your last name. Make sure your name matches your passport exactly to avoid any issues.
Seat Selection
If you have not selected a seat yet, you can view the seat map and pick one during online check-in. This is a good time to choose seats together if you are travelling with family or friends, as any remaining standard seats become available.
Provide Passport and Visa Information
For international flights, you will need to enter your passport details. Singapore Airlines uses this information to complete advanced passenger checks, which can help make airport processing smoother.
Save Your Boarding Pass
After reviewing your details, confirm your check-in. You can receive your boarding pass by email, download it to your phone, or save it to Apple Wallet or Google Wallet.
At the Airport
If you have checked baggage, go to the bag drop counter or an automated bag drop area to check in your luggage. Again, if you are travelling with carry-on only and if your destination accepts digital boarding passes and no document check is required, you can proceed directly to security screening.

Mobile Check-In (via App)

Singapore Airlines also offers mobile check-in through the SingaporeAir app, giving you a simple way to manage your flight from your phone. The check-in window opens 48 hours before departure and closes 1.5 hours before take-off, just like web check-in.

Using the app is convenient if you are travelling and want everything in one place, including your boarding pass and flight updates.

Follow these steps to check in using the SingaporeAir app:

Download and Open the App
Log in to your KrisFlyer account if you have one, or retrieve your booking using your reference number.
Retrieve Your Booking
Enter your 6-character booking reference (PNR) or 13-digit e-ticket number, along with your last name. Make sure the details match your passport exactly.
Confirm Passenger Details
Review your personal information and add your passport details if prompted. For international flights, this step is required before your boarding pass is issued.
Select or Change Your Seat
You can choose your seat from the seat map if you have not already done so. This is also your chance to change seats, subject to availability.
Get Your Mobile Boarding Pass
Once check-in is complete, your boarding pass will be available in the app. You can also save it to Apple Wallet or Google Wallet for quick access at the airport.

Airport Check-In Counters

If you prefer to check in at the airport, Singapore Airlines provides staffed counters and self-service kiosks at most departure airports. This option suits travellers who need extra assistance. If you have special requests or are flying with checked baggage, this option is for you.

Airport check-in times vary by location, but counters usually open around 3 hours before departure for international flights. They typically close 60 minutes before take-off.

Here is what to expect at the airport:

First, check the departure boards for your flight number and follow the signs to the Singapore Airlines check-in area. Staff members are available to guide you if needed.
Present Your Travel Document, passport, visa (if required), and booking reference ready. The check-in agent will verify your documents and confirm your flight details.
Place your luggage on the scale for weighing and tagging. Make sure your bags meet the airline’s size and weight limits to avoid extra charges.
If you have not chosen a seat, you can request one at the counter. Seat changes are subject to availability.
Once check-in is complete, you will receive a printed boarding pass. Keep it handy for security screening and boarding.

After check-in, proceed to security and immigration. Allow enough time to clear both before heading to your departure gate.

Self-Service Kiosks (at the Airport)

If you prefer a quicker option at the terminal, you can use the self-service kiosks available at many Singapore Airlines departure airports. This is a practical choice if you want to avoid queues but still need to check in at the airport.

Kiosks are generally available from around 3 hours before departure and close about 60 minutes before take-off, depending on the airport.

Here is how the process works:

Look for the Singapore Airlines self-service machines in the check-in area. Airport signage will guide you to the correct zone.
Enter your 6-character booking reference (PNR), scan your passport, or use your e-ticket number to access your booking. Follow the prompts on the screen.
Next, review your personal and travel information. For international flights, you may be asked to scan your passport so the system can verify your details.
You can view the seat map and choose or change your seat, subject to availability.
Once check-in is complete, the kiosk will print your boarding pass. If you have checked baggage, it will also print bag tags for you to attach to your luggage.
After tagging your bags, proceed to the designated bag drop counter. Staff will confirm the tags and send your luggage through to your flight.

If you are travelling with carry-on only and no document check is required, you can head straight to security after printing your boarding pass.

Check-In Type	Opens Before	Closes Before	Best For
Online / Mobile	48 Hours	1.5 Hours	Carry-on only & early seat selection
Kiosk	24 Hours	60 Minutes	Printing bag tags & skipping counter lines
Counter	3 Hours*	40–60 Minutes	Complex needs & special assistance

*Counter opening times can be up to 48 hours in advance at Singapore Changi Airport.

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Baggage Rules at Check-In

Singapore Airlines applies baggage rules based on:

Travel class (Economy, Premium Economy, Business, or First Class)
• Fare type
• Route
• KrisFlyer membership tier

If you complete online check-in, you must still drop your checked baggage at the airport counter. You can drop your bag self-service before the cut-off time. Online check-in does not extend baggage deadlines.

Cabin Bags: In Economy class, you carry one cabin bag up to 7kg and a personal item like a laptop bag that fits under the seat; total dimensions stay under 115cm (length plus width plus height). Premium Economy and Business allow two cabin bags totalling 14kg.
Checked baggage follows a weight concept for most routes, with Economy flyers allowed 25 kg total across bags and First/Business getting 40kg; US flights switch to two pieces at 23kg each. Overweight bags cost extra per kg based on the route.
Print tags at kiosks or counters after check-in, then drop bags at dedicated belts; staff verify weight and size on the spot. For Australia departures like Sydney, expect strict checks due to security rules. Always weigh your bags at home.

Arrive early if you travel with multiple bags, special equipment, or sports gear. Extra processing time may apply. Meeting baggage deadlines protects your booking and ensures your luggage travels on the same flight as you.

Still unsure about your Singapore Airlines check-in deadline for your route?

If you are unsure about your Singapore Airlines check-in deadline, baggage allowance, or travel documents, Airways Travel can handle it for you. Our team confirms your check-in window, reviews your ticket rules, and guides you step by step so you do not miss important cut-off times.

Book now with Airways Travel or call us today and let our travel experts manage your Singapore Airlines check-in and flight support.