Cheap Flights from San Francisco to Hanoi from $376

Frequently Asked Questions

• What are the cheapest flights from San Francisco to Hanoi (SFO-HAN)?

  Based on Trip.com data, Philippine Airlines offers one-way fares as low as $376 on Cheapest nonstop routes (e.g. SFO to HAN on Wed, Aug 12), while Air China offers Cheapest nonstop round-trips from $698 departing on Sat, Sep 5 and returning on Fri, Sep 11.

• Which airlines offer flights from San Francisco to Hanoi?

  At the moment, several airlines serve connecting flights from San Francisco to Hanoi, including: Asiana Airlines Korean Air STARLUX Airlines China Airlines China Eastern Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from San Francisco to Hanoi?

  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.

• How can I find the best deals on flights from San Francisco to Hanoi?

  To find best deals on flights from San Francisco to Hanoi, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Aug 12, with one-way flights priced at just $376.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Philippine Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Hanoi travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from San Francisco (SFO) to Hanoi (HAN) the cheapest?

  The cheapest months to fly from San Francisco to Hanoi is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from San Francisco to Hanoi on?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from San Francisco to Hanoi on July 25, 2026 with China Eastern Airlines, with prices starting at $434.

• Which airports can I fly to for Hanoi from San Francisco?

  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).

• Is there any time difference between San Francisco and Hanoi?

  The time difference between Hanoi and San Francisco is 15h.

• How do I change or cancel my ticket from San Francisco to Hanoi?

  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.