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Flights from San Francisco to Hanoi

Find cheap airlines flights from San Francisco to Hanoi

Choose from 6 carriers that fly from San Francisco to Hanoi, including China Airlines, EVA Air, and Asiana Airlines. Enjoy the cheapest tickets on this route with United Airlines.

Find flight deals from San Francisco to Hanoi for the next 3 months. Book one way flights from $259 or round trip flights from $752.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | San Francisco to Hanoi

The distance between San Francisco and Hanoi is about 11,757.37 km. The most popular month to Hanoi is January. The off-season for travel is September.

Cheapest one-way flight price$259
Cheapest round-trip ticket price$752
Off-season for travelSeptember
Peak season for travelJanuary
Flight distance11,757.37 km
Popular airlineChina Airlines

When is the cheapest time to fly from San Francisco to Hanoi?

The cheapest time for San Francisco to Hanoi flights: Nov 30 to Dec 7 — one way flight prices from $259.

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer flights from San Francisco to Hanoi?

    At the moment, several airlines serve connecting flights from San Francisco to Hanoi, including: China Airlines Asiana Airlines EVA Air Korean Air Singapore Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Hanoi is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • The cheapest months to fly from San Francisco to Hanoi is September, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from San Francisco to Hanoi on November 15, 2025 with China Eastern Airlines, with prices starting at $659.
  • You can land at any one of the following hubs in Hanoi, with San Francisco International Airport to Noi Bai International Airport (SFO-HAN) is by far the most common option on this route: Noi Bai International Airport (HAN).
  • The time difference between Hanoi and San Francisco is 15h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.