Flights from San Francisco (SFO) to Vietnam

Yes, meals are served on flights from San Francisco to Vietnam. On the long-haul San Francisco–Singapore sector, you can enjoy in-flight dining with a choice of main courses inspired by international and Asian flavours, along with bread, dessert, and light bites during the journey. Special meals are available on request before departure, catering to a range of dietary preferences. On selected cabins and routes, you can also use our Book the Cook service from Singapore, pre-ordering a main course designed by our culinary partners. Throughout the flight, a full beverage service is available, including juices, soft drinks, hot drinks, and a selection of wines and spirits, as well as our signature Singapore Sling.

Flights between the United States of America and Vietnam use the piece concept for checked baggage. In Economy Class, you can typically check in two pieces of baggage. In Premium Economy Class and Business Class, you can usually enjoy a higher checked baggage allowance. For all cabins, you may also bring cabin baggage on board within size and piece limits. Exact allowances depend on your ticket type and KrisFlyer status, so please check your booking confirmation.

Wi-Fi is available on most Singapore Airlines flights from San Francisco to Vietnam once the aircraft is above 10,000 feet. KrisFlyer members enjoy free and unlimited Wi-Fi; if you are travelling in Economy Class or Premium Economy Class, please add your membership number to your booking at least 1.5 hours before departure to enjoy this benefit. Non-members and additional users can choose from paid plans. The service is ideal for messaging, email, and basic browsing, but it does not support video streaming, video calls, or large file transfers.

Across flights from San Francisco to Vietnam, you can travel in Business Class, Premium Economy Class, or Economy Class. The San Francisco–Singapore sector offers Business Class, Premium Economy Class, and Economy Class on selected services, while onward flights from Singapore to Vietnamese cities provide Business Class and Economy Class. Cabin configurations may differ slightly between the Airbus A350-900 and the Boeing 737-8 MAX used on these routes.

In Economy Class, you can expect around 32-inch pitch and up to 19-inch seat width, offering comfortable legroom for long flights. In Premium Economy Class, seats provide about 38-inch pitch and up to 20-inch seat width for added space and recline on the San Francisco–Singapore sector. In Business Class, your seat converts into a fully flat bed, with direct aisle access on wide-body aircraft, giving you generous personal space. Cabin layouts can vary slightly between Airbus A350-900 and Boeing 737-8 MAX services, but all cabins are designed with comfort in mind.

Yes, Singapore Airlines provides lounge access to eligible passengers at layover airports on connections to Vietnam. Eligibility is based on your class of travel or KrisFlyer and Star Alliance status, determined by the flight departing the layover airport. Other options such as purchasing a day pass 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.

Most journeys from San Francisco to Vietnam connect via Singapore Changi Airport, which offers extensive amenities. For shorter layovers, you can stay airside and enjoy quiet rest areas, gardens, and shower facilities, or explore dining and shopping across the terminals. With a longer connection, you may join a free transit tour into the city if timing and eligibility permit, or relax in a lounge or airport hotel. Your time at the airport is more than just a wait — it is an integral part of your journey.

Vietnam follows a single time zone, Indochina Time (UTC+7), with no daylight saving time. San Francisco uses Pacific Time, which is UTC−8 in standard time (roughly November to March) and UTC−7 in daylight saving time (roughly March to November). This means Vietnam is typically 15 hours ahead of San Francisco during Pacific Standard Time, and 14 hours ahead during Pacific Daylight Time.

Yes, your baggage will typically be checked through to your final destination in Vietnam when flying via the layover airport on a single booking with Singapore Airlines, provided both flight segments are under the same booking reference (PNR), the connection is under 24 hours, and, for partner-operated onward flights, a through-check agreement is in place.

You may be able to plan a stopover at the layover city on your journey to Vietnam, 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.