$350 Cheap Flights from San Francisco (SFO) to Hanoi (HAN)

View $350 flight on Sat, Feb 21, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)

Cheap Flights from San Francisco to Hanoi (SFO-HAN)

Prices were available within the past 7 days and start at $350 for one-way flights and $573 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Mon, Dec 1 - Wed, Dec 10
SFO
San Francisco
HAN
Hanoi
$573 Roundtrip, found 2 hours ago
$573
Roundtrip
found 2 hours ago
Select China Southern Airlines flight, departing Mon, Dec 1 from San Francisco to Hanoi, returning Wed, Dec 10, priced at $573 found 2 hours ago
Singapore Airlines
Mon, Jan 26 - Wed, Feb 4
SFO
San Francisco
HAN
Hanoi
$631 Roundtrip, found 10 hours ago
$631
Roundtrip
found 10 hours ago
Select Singapore Airlines flight, departing Mon, Jan 26 from San Francisco to Hanoi, returning Wed, Feb 4, priced at $631 found 10 hours ago
Philippine Airlines
Mon, Oct 20 - Thu, Oct 30
SFO
San Francisco
HAN
Hanoi
$691 Roundtrip, just found
$691
Roundtrip
just found
Select Philippine Airlines flight, departing Mon, Oct 20 from San Francisco to Hanoi, returning Thu, Oct 30, priced at $691 just found
Asiana Airlines
Wed, Oct 29 - Sun, Nov 2
SFO
San Francisco
HAN
Hanoi
$692 Roundtrip, found 1 hour ago
$692
Roundtrip
found 1 hour ago
Select Asiana Airlines flight, departing Wed, Oct 29 from San Francisco to Hanoi, returning Sun, Nov 2, priced at $692 found 1 hour ago
Korean Air
Tue, Oct 28 - Tue, Nov 18
SFO
San Francisco
HAN
Hanoi
$699 Roundtrip, just found
$699
Roundtrip
just found
Select Korean Air flight, departing Tue, Oct 28 from San Francisco to Hanoi, returning Tue, Nov 18, priced at $699 just found
Air China
Sat, Nov 29 - Fri, Dec 12
SFO
San Francisco
HAN
Hanoi
$700 Roundtrip, found 1 day ago
$700
Roundtrip
found 1 day ago
Select Air China flight, departing Sat, Nov 29 from San Francisco to Hanoi, returning Fri, Dec 12, priced at $700 found 1 day ago
United
Tue, Apr 7 - Tue, Apr 14
SFO
San Francisco
HAN
Hanoi
$707 Roundtrip, found 1 day ago
$707
Roundtrip
found 1 day ago
Select United flight, departing Tue, Apr 7 from San Francisco to Hanoi, returning Tue, Apr 14, priced at $707 found 1 day ago
Delta
Mon, Dec 1 - Mon, Dec 22
SFO
San Francisco
HAN
Hanoi
$710 Roundtrip, found 2 hours ago
$710
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Dec 1 from San Francisco to Hanoi, returning Mon, Dec 22, priced at $710 found 2 hours ago
China Eastern Airlines
Mon, Nov 10 - Thu, Nov 20
SFO
San Francisco
HAN
Hanoi
$713 Roundtrip, found 9 hours ago
$713
Roundtrip
found 9 hours ago
Select China Eastern Airlines flight, departing Mon, Nov 10 from San Francisco to Hanoi, returning Thu, Nov 20, priced at $713 found 9 hours ago
All Nippon Airways
Wed, Jan 21 - Tue, Feb 17
SFO
San Francisco
HAN
Hanoi
$739 Roundtrip, found 9 hours ago
$739
Roundtrip
found 9 hours ago
Select All Nippon Airways flight, departing Wed, Jan 21 from San Francisco to Hanoi, returning Tue, Feb 17, priced at $739 found 9 hours ago

Find the cheapest month to fly from San Francisco (SFO) to Hanoi (HAN)

September is typically the cheapest month to fly

From $627 - $831 per traveler.

Alternative airports near Hanoi

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Noi Bai Intl. HAN. Cheapest and Closest option available. Average driving time to city center is 24 minutes. Flights from $699
HAN
Noi Bai Intl.
CheapestClosest
Average driving time to city center24 min
Flights from $699

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN) cost?
Secure a cheap one-way flight from $350 or cheap return flight from $573 from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)?
Planning your trip for December can help you save, as it's the cheapest month for flights between SFO and HAN. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SFO to HAN flight.
How many flights per day from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)?
There aren't any daily direct flights departing from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from SFO to HAN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)?
Opt for a flight from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN) last-minute?
Booking your plane ticket from SFO to HAN right before your getaway is usually more expensive. However, if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a SFO to HAN flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to HAN flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Noi Bai Intl. Airport (HAN)?
If you reserved your SFO to HAN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Noi Bai Intl.
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, Philippine Airlines, Qatar Airways, STARLUX Airlines, Singapore Airlines, Turkish Airlines, United, Vietnam Airlines
Roundtrip price
$572
Distance
7306 mi

Book with confidence

San Francisco to Hanoi Flights

The cheapest times to fly from San Francisco to Hanoi

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Hanoi are during the month of December. You can find some of the cheapest flights from San Francisco to Hanoi with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Hanoi

Sunday is one of the best days to book for cheap flights from San Francisco to Hanoi: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Hanoi

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Hanoi in 2025. You can also book with separate airlines for your outbound and return journeys, from $350 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Hanoi flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Hanoi airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to Hanoi Flights

Explore a world of travel with Expedia

*Available to One Key members.