Flights from Seattle (SEA) to Kathmandu (KTM)

In-flight Dining
On the long-haul Seattle to Singapore sector and onward to Kathmandu, you will be served curated meals in all cabins, with menus that reflect regional flavours and international favourites tailored to the time of day.

Special Meals
We offer a wide range of special meals that can be requested before departure to meet dietary needs or preferences. These should be pre-ordered through our Manage Booking page or via your travel agent, subject to availability.

Book the Cook
Eligible premium cabins on selected sectors of your journey can pre-select main courses from our Book the Cook service. This allows you to choose from a wider menu before you fly, subject to route and aircraft.

Beverage Service
Throughout the journey, a selection of hot and cold drinks, wines, and other beverages will be served. Our signature Singapore Sling is available on board, so you can enjoy a taste of our heritage during your flight.

For flights between Seattle and Kathmandu, the piece concept applies for checked baggage. For Economy Class, you may check in 2 pieces, each up to 23kg. For Premium Economy Class, you may 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 passengers may bring 1 piece up to 7kg, while Business Class passengers may bring 2 pieces, each up to 7kg. Your final 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 once the aircraft is above 10,000 feet. It is free and unlimited for KrisFlyer members, though Economy Class and Premium Economy Class passengers must 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 seats offer a 32-inch pitch with up to 19-inch seat width, Premium Economy Class offers a 38-inch pitch with up to 20-inch seat width, and Business Class provides a fully flat bed with direct aisle access. On the Singapore to Kathmandu sector operated by the Boeing 737-8 MAX, Economy Class offers a comfortable 32-inch pitch with up to 19-inch seat width, and Business Class provides a spacious seat that converts into a fully flat bed, offering additional space and privacy.

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.

Lounge Access Eligibility
Cabin Class: Complimentary for Suites, First, and Business Class passengers. Premium Economy and Economy travellers do not have access unless they hold eligible status.

Frequent Flyer Status: PPS Club and KrisFlyer Elite Gold (or Star Alliance Gold) members have access regardless of cabin class.

The Next Segment Rule: Eligibility is based on the flight immediately departing that airport. For example, if you fly Economy from Seattle but have a Business Class onward flight from Singapore, you get lounge access in Singapore only. In Singapore (SIN), eligible passengers can use facilities such as the SilverKris Lounge (First Class), SilverKris Lounge (Business Class), and KrisFlyer Gold Lounge, depending on cabin and status.

Singapore Changi Airport offers a wide range of amenities that make layovers comfortable and rewarding. With a longer connection, you can join the official free city transit tour, which typically requires a minimum layover of about 5.5 to 6 hours between flights. For shorter layovers, stay airside and explore the airports gardens, relaxation zones, and entertainment areas. You can enjoy indoor greenery, quiet corners, and family-friendly attractions within the terminals. Your time at Singapore Changi Airport is more than just a wait — it is an integral part of your journey.

Seattle is in the America/Los_Angeles time zone, which is UTC-8 in winter (approximately November to March) and UTC-7 in summer (approximately March to November) due to daylight saving time. Kathmandu is in the Asia/Kathmandu time zone, which is UTC+5:45 year-round. This means Kathmandu is typically 13 hours 45 minutes ahead of Seattle in winter and 12 hours 45 minutes ahead in summer.

Yes, your baggage will typically be checked through to Tribhuvan International Airport in Kathmandu when flying from Seattle via Singapore on a single booking with Singapore Airlines.

Through-Check Conditions
For your bags to be sent directly to your final destination, the following general conditions must be met:

Single Itinerary: Both flight segments (Seattle–Singapore and Singapore–Kathmandu) must be under the same booking reference or PNR.

Layover Duration: Your connection in Singapore must be less than 24 hours. If your layover exceeds 24 hours, it is considered a stopover, and you will typically be required to collect your luggage and re-check it for your onward flight.

Partner Airlines: If your onward flight from Singapore to Kathmandu is operated by a partner airline, Singapore Airlines has through-check agreements that usually allow your bags to be tagged to your final destination.

You may be able to plan a stopover in Singapore on your Seattle–Kathmandu trip, subject to your ticket conditions and availability. When booking, you can search for multi-city options or speak with our customer service team or your travel agent, who can advise whether a stopover can be added to your itinerary.