Flights from Seattle (SEA) to Adelaide (ADL)

In-flight Dining
You will be served meals and refreshments tailored to the time of day on both the long-haul Seattle to Singapore sector and the onward Singapore to Adelaide flight. Menus feature a range of regional and international dishes.

Special Meals
We offer a variety of special meals for specific dietary needs on this route. These should be requested in advance through your booking so that we can prepare them for you.

Book the Cook
Eligible premium cabins on selected sectors of this journey can pre-order meals through our Book the Cook service. This allows you to choose from an extended menu before you fly, subject to availability on your specific flight.

Beverage Service
Throughout the flight, you can enjoy a selection of hot and cold drinks. Our signature Singapore Sling is available on board, along with a range of other beverages.

For flights between Seattle and Adelaide, our checked baggage allowance follows the piece concept as the journey involves the United States of America. For Economy Class, you may check in 2 pieces, each up to 23kg. For Premium Economy Class, you may also check in 2 pieces, each up to 23kg. For Business Class, you may check in 2 pieces, each up to 32kg. Each individual checked bag must not exceed 32kg.

For cabin baggage, Economy Class and Premium Economy Class guests may bring 1 piece up to 7kg. Business Class guests may bring 2 pieces, each up to 7kg. Your exact baggage allowance will be shown on your e-ticket, and KrisFlyer Elite Gold and PPS Club members enjoy additional allowances.

Wi-Fi is available on Singapore Airlines flights from Seattle to Singapore and onwards to Adelaide once the aircraft is above 10,000 feet. Wi-Fi is free and unlimited for KrisFlyer members, and Economy Class and Premium Economy Class members should add their membership number to the booking at least 1.5 hours before departure. Paid plans are available for non-members. The connection is suitable for messaging, email, and basic browsing, but it does not support video streaming, video calls, or large file transfers.

On the Seattle to Singapore sector, operated by the Airbus A350-900, Economy Class offers a seat pitch of about 32 inches with up to 19 inches of seat width, Premium Economy Class offers around 38 inches of pitch with up to 20 inches of width, and Business Class provides a fully flat bed with direct aisle access.

On the Singapore to Adelaide sector, operated by the Boeing 787-10, Economy Class also offers a seat pitch of about 32 inches with up to 19 inches of seat width, while Business Class offers a fully flat bed with direct aisle access.

On both the Airbus A350-900 and Boeing 787-10 services between Seattle and Adelaide, you can enjoy KrisWorld, our in-flight entertainment system. It offers a wide selection of movies, television shows, music, and games, accessible through a personal screen at your seat with noise-reducing headphones provided.

You can select seats on Singapore Airlines flights from Seattle to Adelaide during booking or via Manage Booking, subject to your fare conditions and cabin class. Some seats may be chargeable, and availability can change as other customers make their selections.

Yes, Singapore Airlines provides lounge access to eligible passengers with a layover in Singapore. Your eligibility is based on your class of travel or your KrisFlyer and Star Alliance status, and it is determined by your flight leaving Singapore. Other options, like purchasing a day pass at a pay-per-use lounge, are also available.

With a layover at Singapore Changi Airport, you have many ways to spend your time comfortably. For longer layovers, you can consider joining the airport's free transit tour if your connection meets the minimum time requirement of about 5.5 to 6 hours. For shorter stops, stay airside to enjoy gardens, quiet rest areas, shower facilities, and a wide range of dining and shopping.

If you have a very long layover, you may also consider booking an airport hotel within the terminals for additional rest. Your time at Singapore Changi Airport is more than just a wait — it is an integral part of your journey.

In Seattle, eligible Singapore Airlines customers may be invited to use The Club at SEA before departure. Lounge access depends on your cabin class and frequent flyer status, and details will be confirmed at check-in or on your boarding pass.

During your layover at Singapore Changi Airport, eligible customers travelling in premium cabins or holding qualifying KrisFlyer or Star Alliance status may be able to access the SilverKris Lounge (First Class), SilverKris Lounge (Business Class), or KrisFlyer Gold Lounge, depending on their ticket and membership tier.

Seattle follows Pacific Time, which is UTC-8 in winter and UTC-7 in summer (approximately November to March for standard time, and March to November for daylight saving). Adelaide operates on Australian Central Time, which is UTC+9:30 in winter and UTC+10:30 in summer. This means the time difference between Seattle and Adelaide varies between about 16.5 and 18.5 hours depending on the time of year.

Visa and entry requirements for Australia depend on your nationality and the purpose and length of your stay. We recommend checking the latest information with the relevant Australian authorities or your local consulate before you travel, and ensuring your passport has sufficient validity.

For Singapore Airlines flights from Seattle to Adelaide via Singapore, we recommend arriving at Seattle-Tacoma International Airport at least 3 hours before your scheduled departure. This allows enough time for check-in, security screening, and reaching the departure gate comfortably.

When connecting in Singapore on the way to Adelaide, your checked baggage is generally tagged through to Adelaide if both flights are on the same itinerary. Follow the transfer signs on arrival, check the flight information screens for your gate, and allow time to move between terminals if needed. Singapore Changi Airport is well signposted, with transfer desks and staff available to assist.

On arrival in Adelaide, you will go through immigration, collect your checked baggage, and then pass through customs and biosecurity checks. Australia has strict rules about bringing in food and other items, so complete your arrival card accurately and declare any goods as required. After exiting customs, you will find signs for ground transport and onward connections.