Flights from London (LON) to Seattle (SEA)

In-flight Dining
You will be served complimentary meals on both the London–Singapore and Singapore–Seattle sectors, with menus designed to reflect regional cuisines and offer a choice of main courses.

Special Meals
We offer a range of special meals for different dietary needs on this route. You can request these in advance through our Manage Booking page, and they will be served at appropriate times during the flight.

Book the Cook
On eligible cabin classes and sectors, you can pre-select from an extended menu using our Book the Cook service, giving you more choice over what you enjoy on board.

Beverage Service
A selection of hot and cold drinks is available throughout the flight, including juices, soft drinks, tea, coffee, and a curated list of wines and spirits. Our signature Singapore Sling is also available on board.

For flights between London and Seattle, our piece concept applies as the journey involves the United States of America. For checked baggage, Economy Class guests may take 2 pieces, each up to 23kg. Premium Economy Class guests may take 2 pieces, each up to 23kg, and Business Class guests may take 2 pieces, each up to 32kg. First Class and Suites guests on the London–Singapore sector may take 2 pieces, each up to 32kg. No single checked bag may exceed 32kg.

For cabin baggage, Economy Class and Premium Economy Class guests may bring 1 piece up to 7kg. Business Class, First Class, and Suites guests may bring 2 pieces, each up to 7kg. Your final baggage allowance is 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 London to Seattle once the aircraft is above 10,000 feet. KrisFlyer members enjoy free and unlimited Wi-Fi; Economy Class and Premium Economy Class members should add their membership number to the booking at least 1.5 hours before departure. Non-members can purchase access plans. The service is suitable for messaging, email, and basic browsing, but does not support video streaming, video calls, or large file transfers.

On both the London–Singapore and Singapore–Seattle sectors, Economy Class offers a seat pitch of 32 inches, with up to 19 inches of seat width, providing comfortable space for long-haul travel. Premium Economy Class offers a 38-inch pitch and up to 20 inches of seat width, with extra recline and leg support.

Business Class on this route features seats that convert into fully flat beds, with direct aisle access on the Airbus A350-900 and spacious layouts on the Boeing 777-300ER and Airbus A380-800 between London and Singapore. On selected London–Singapore services, First Class and Suites also offer fully flat beds with enhanced space and privacy.

From London to Singapore, you can choose from Economy Class, Premium Economy Class, Business Class, and on selected services, First Class or Suites. From Singapore to Seattle, flights are operated in Economy Class, Premium Economy Class, and Business Class, giving you a consistent long-haul experience across the Pacific.

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.

Singapore Changi Airport offers extensive facilities, including gardens, rest areas, play zones, and a wide selection of shops and dining options, making short layovers comfortable and engaging. For longer layovers, you may be able to join an official city tour if your connection time meets the minimum hours required.

You can also take time to refresh in a transit hotel or eligible lounge, enjoy quiet corners for rest, or explore themed spaces around the terminals. Your time at Singapore Changi Airport is more than just a wait - it is an integral part of your journey.

In London, eligible passengers departing from London Heathrow can access the SilverKris Lounge (First Class) or SilverKris Lounge (Business Class). At London Gatwick, eligible customers may use the No 1 Lounge. During your layover at Singapore Changi Airport, eligible passengers can access The Private Room, SilverKris Lounge (First Class), SilverKris Lounge (Business Class), or the KrisFlyer Gold Lounge, depending on cabin and membership status.

When you travel from London to Seattle on a single Singapore Airlines itinerary via Singapore, we typically check your baggage through to Seattle. You will usually not need to collect your checked baggage in Singapore, but the final handling and tagging will be confirmed at check-in and shown on your baggage receipts.

London operates on Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) from late March to late October. Seattle follows Pacific Standard Time (PST, UTC-8) in winter and Pacific Daylight Time (PDT, UTC-7) in summer. This means Seattle is typically 8 hours behind London in winter and 8 hours behind in summer when both regions observe daylight saving, though there can be brief transition periods where the difference is 7 or 9 hours.

Entry requirements for the United States of America depend on your nationality, passport type, and purpose of visit. We recommend checking the latest information with official government sources or your local embassy before you travel, and ensuring any required electronic travel authorisation is obtained in advance.

For your London to Seattle journey via Singapore, we recommend arriving at the airport at least 3 hours before your scheduled departure time from London. This allows enough time for check-in, security, and any tax refund procedures, as well as time to relax before boarding.

When connecting in Singapore on the way to Seattle, follow the transfer signs on arrival and check the displays for your next departure gate. You will usually remain in the transit area, and do not need to pass immigration unless instructed. There are many shops, dining options, and rest areas to use between flights.

Whether you can leave Singapore Changi Airport during your layover depends on your nationality, visa requirements, and the length of your connection. If you plan to go into the city, ensure you have sufficient time to clear immigration, travel, and return for your next flight. Always check entry rules before you travel.