Flights from Seattle (SEA) to Istanbul (IST)

In-flight Dining
On Seattle–Istanbul journeys via Singapore, you will be served complimentary meals and snacks tailored to the time of day and sector length in Economy Class, Premium Economy Class, and Business Class.

Special Meals
We offer a wide selection of special meals that can be requested in advance, helping you to align your in-flight dining with your dietary needs or preferences.

Book the Cook
Eligible customers in selected cabins can pre-order from our Book the Cook menu on designated sectors, choosing from a broader range of main courses before departure for a more personalised dining experience.

Beverage Service
Throughout the flight, you can enjoy a range of hot and cold drinks, including juices, soft drinks, teas, coffees, and alcoholic beverages. Our signature Singapore Sling is also available on board.

For flights between Seattle and Istanbul, the piece concept applies for checked baggage. In Economy Class, you may check 2 pieces, each up to 23kg. In Premium Economy Class, you may check 2 pieces, each up to 23kg. In Business Class, you may check 2 pieces, each up to 32kg. Each individual checked piece must not exceed 32kg. For cabin baggage, Economy Class and Premium Economy Class customers may bring 1 piece up to 7kg, while Business Class customers may bring 2 pieces, each up to 7kg. Your final 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 Istanbul once the aircraft is above 10,000 feet. It is free and unlimited for KrisFlyer members; Economy Class and Premium Economy Class customers should ensure their membership number is added to the booking at least 1.5 hours before departure. Paid plans are available for non-members. The connection is suitable for messaging apps, email, and basic browsing, but it does not support video streaming, video calls, or large file transfers.

On both the Seattle–Singapore and Singapore–Istanbul sectors operated by the Airbus A350-900, Economy Class seats typically offer a 32-inch pitch and up to 19-inch seat width. Premium Economy Class seats offer around a 38-inch pitch and up to 20-inch seat width. Business Class provides a fully flat bed with every seat offering direct aisle access.

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.

At Singapore Changi Airport, eligible customers may be able to access SilverKris Lounge (First Class), SilverKris Lounge (Business Class), or KrisFlyer Gold Lounge, depending on their cabin and status.

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.

If you have a longer layover at Singapore Changi Airport, you can consider joining one of the official transit tour programmes, which typically require a minimum layover of around 5.5 to 6 hours. These tours offer a glimpse of the city while keeping your connection smooth.

For shorter layovers, you may prefer to stay airside and explore the airport’s attractions. Depending on the terminal, you can enjoy indoor gardens, quiet rest areas, children’s play zones, and in-terminal relaxation facilities.

You will also find a wide range of dining choices and shopping options, as well as transit hotels where available for longer rests between flights. Your time at Singapore Changi Airport is more than just a wait — it is an integral part of your journey.

Seattle follows Pacific Time, which is UTC-8 in winter (roughly November to March) and UTC-7 in summer (roughly March to November). Istanbul operates on Türkiye Time year-round at UTC+3. This means Istanbul is typically 11 hours ahead of Seattle in winter and 10 hours ahead in summer.

Yes, your baggage will typically be checked through to Istanbul Airport 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–Istanbul) 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 Istanbul 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–Istanbul 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.