Cheap flights from San Francisco to Hanoi from $353
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Hanoi departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Francisco to Hanoi
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from San Francisco to Hanoi
Our best United Airlines deals on San Francisco to Hanoi flight tickets
Cathay Pacific flights from San Francisco to Hanoi
Our best Cathay Pacific deals on San Francisco to Hanoi flight tickets
See travel insights to Hanoi from
How to get the cheapest flight ticket from San Francisco to Hanoi
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Hanoi?
The cheapest month to fly to Hanoi from San Francisco is in March. Flight prices, which tend to average around $792, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in March, then August is your next best option. Flight prices from San Francisco to Hanoi during August average around $812.
What is the cheapest day to depart on your flight to Hanoi?
According to our data, Monday is the cheapest day to fly to Hanoi from San Francisco. The lowest ticket price found for a Monday departure recently was $892. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Hanoi on Saturday is $1,014.
What is the cheapest time of day to depart on your flight to Hanoi?
Our most recent data shows that the best time of day to fly to Hanoi is in the evening. Flights from San Francisco to Hanoi during this time can be as low as $920. Try not to purchase tickets at noon because they tend to be around $1,120. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Hanoi?
You are more likely to see cheaper flights to Hanoi from San Francisco when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around $961 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from San Francisco for as low as $822 on momondo.
What is the cheapest airline that flies from San Francisco to Hanoi Noibai?
Asiana Airlines, Korean Air, and Cathay Pacific are the most popular carriers operating from San Francisco to Hanoi Noibai
What airlines fly to Hanoi?
China Airlines, Cathay Pacific and EVA Air are the top three most popular airlines that fly to Hanoi from San Francisco according to our data. China Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Hanoi. Keep in mind that there are 14 different airlines that fly to Hanoi on a routine basis, so you have a few additional options to choose from.
When to book flights from San Francisco to Hanoi
Cheap San Francisco to Hanoi (SFO to HAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Hanoi
How far is San Francisco to Hanoi Noibai by plane?
San Francisco and Hanoi Noibai are 7302.4 mi apart from one another. 18h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from San Francisco Airport to Hanoi Noibai Airport?
Prices for flights from San Francisco Airport to Hanoi Noibai Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Hanoi Noibai Airport?
As of June 2025, there are 14 operators available to choose from for flights from San Francisco Airport to Hanoi Noibai Airport.
How old do you have to be to fly from San Francisco Airport to Hanoi Noibai Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Hanoi Noibai Airport.
What documentation or ID do you need to fly to Hanoi Noibai Airport?
The required travel and health documents for your Hanoi Noibai Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Hanoi Noibai Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Hanoi?
momondo data reveals that the most frequently booked airline on the route from San Francisco to Hanoi is China Airlines, representing 30% of all bookings. The subsequent popular airlines are Cathay Pacific at 20%, EVA Air at 12%, and Asiana Airlines at 10%.
Best airlines flying from San Francisco to Hanoi
Compare and see reviews for airlines that fly from San Francisco to Hanoi with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $577 | Free Cancellation | Rating 7.5 99 reviews | |||
| PriceFrom $647 | Free Cancellation | Rating 8.1 1,302 reviews | |||
| PriceFrom $654 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom $676 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom $686 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $701 | Free Cancellation | Rating 7.5 892 reviews | |||
| PriceFrom $728 | Free Cancellation | Rating 8.3 882 reviews | |||
| PriceFrom $730 | Free Cancellation | Rating 8.3 1,489 reviews | |||
| PriceFrom $731 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $736 | Free Cancellation | Rating 8.3 738 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Francisco to Hanoi?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Hanoi. momondo saves you time and could save you money on your trip.
Can I find flights from San Francisco to Hanoi with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Hanoi from San Francisco with this policy.
How can momondo help me find flights from San Francisco to Hanoi?
momondo helps you find the best flight between San Francisco and Hanoi by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from San Francisco to Hanoi right now. Can momondo alert me if prices change?
Yes. momondo can track prices for San Francisco to Hanoi flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.