Street vendor with a bicycle in the urban market of Hanoi, Vietnam. — flights from San Francisco to Hanoi
San FranciscoHanoi, Vietnam

Flights from San Francisco to Hanoi

Flying time from San Francisco (SFO) to Hanoi (HAN) is about 15h 12m (11,758 km). Lowest fare seen: $476 one-way, 1 stop (12 Oct 2026).

All flights from San Francisco →All flights to Hanoi →

Photo of Hanoi: Tan Danh on Pexels.

When you land in Hanoi

The airport transfer and the few things worth sorting before you fly.

Find hotels in Hanoi

Hotels, hostels & more · Trip.com

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Airlines flying San Francisco to Hanoi

We have not confirmed which airlines fly SFO–HAN nonstop. Search the route to see every carrier selling it today, including connections.

Best time to fly to Hanoi

Based on weather and travel conditions in Vietnam

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

Vietnam spans multiple climate zones. Hanoi and the north are best Oct–Apr; Ho Chi Minh City is best Nov–Apr. Da Nang is excellent Feb–Aug. The middle has complex weather patterns.

Peak season: October – April

More for this trip

Frequently asked questions — San Francisco to Hanoi flights

How long is the flight from San Francisco to Hanoi?
San Francisco (SFO) and Hanoi (HAN) are 11,758 km apart, about 15h 12m of flying time. We have not seen a nonstop fare on this pair, so expect to connect — the cheapest itinerary seen had 1 stop, which adds to the total journey time.
How far is San Francisco from Hanoi by air?
The great-circle distance between San Francisco International Airport and Noi Bai International Airport is 11,758 km (7,306 miles), a ultra long-haul route.
How much does a flight from San Francisco to Hanoi cost?
The lowest one-way fare seen recently on SFO–HAN was $476 USD with Cathay Pacific (1 stop), departing 12 Oct 2026, found in fare searches as of 12 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
Do I need a visa to travel from San Francisco to Vietnam?
It depends on your passport. Some nationalities can enter Vietnam visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Hanoi?
Vietnam spans multiple climate zones. Hanoi and the north are best Oct–Apr; Ho Chi Minh City is best Nov–Apr. Da Nang is excellent Feb–Aug. The middle has complex weather patterns.

Sources: fares from Travelpayouts flight-search data, seen 12 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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