$533 Cheap Flights from San Francisco (SFO) to Haiphong (HPH)

View $533 flight on Sun, Jan 25, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Haiphong (HPH-Cat Bi)

Cheap Flights from San Francisco to Haiphong (SFO-HPH)

Prices were available within the past 7 days and start at $533 for one-way flights and $950 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vietnam Airlines
Thu, Jan 22 - Tue, Feb 3
SFO
San Francisco
HPH
Hai Phong
$950 Roundtrip, found 6 days ago
$950
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Thu, Jan 22 from San Francisco to Hai Phong, returning Tue, Feb 3, priced at $950 found 6 days ago
Vietnam Airlines
Thu, Jan 22 - Thu, Feb 5
SFO
San Francisco
HPH
Hai Phong
$961 Roundtrip, found 6 days ago
$961
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Thu, Jan 22 from San Francisco to Hai Phong, returning Thu, Feb 5, priced at $961 found 6 days ago
Vietnam Airlines
Sat, Jan 24 - Tue, Feb 3
SFO
San Francisco
HPH
Hai Phong
$990 Roundtrip, found 6 days ago
$990
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Sat, Jan 24 from San Francisco to Hai Phong, returning Tue, Feb 3, priced at $990 found 6 days ago
Vietnam Airlines
Thu, Jan 22 - Sat, Feb 7
SFO
San Francisco
HPH
Hai Phong
$996 Roundtrip, found 6 days ago
$996
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Thu, Jan 22 from San Francisco to Hai Phong, returning Sat, Feb 7, priced at $996 found 6 days ago
Vietnam Airlines
Sat, Jan 24 - Thu, Feb 5
SFO
San Francisco
HPH
Hai Phong
$1,001 Roundtrip, found 6 days ago
$1,001
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Sat, Jan 24 from San Francisco to Hai Phong, returning Thu, Feb 5, priced at $1,001 found 6 days ago
Vietnam Airlines
Thu, Jan 22 - Wed, Feb 4
SFO
San Francisco
HPH
Hai Phong
$1,010 Roundtrip, found 6 days ago
$1,010
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Thu, Jan 22 from San Francisco to Hai Phong, returning Wed, Feb 4, priced at $1,010 found 6 days ago
EVA Airways
Thu, Jan 29 - Tue, Feb 10
SFO
San Francisco
HPH
Hai Phong
$1,019 Roundtrip, found 6 days ago
$1,019
Roundtrip
found 6 days ago
Select EVA Airways flight, departing Thu, Jan 29 from San Francisco to Hai Phong, returning Tue, Feb 10, priced at $1,019 found 6 days ago
EVA Airways
Thu, Jan 8 - Wed, Jan 14
SFO
San Francisco
HPH
Hai Phong
$1,024 Roundtrip, found 6 days ago
$1,024
Roundtrip
found 6 days ago
Select EVA Airways flight, departing Thu, Jan 8 from San Francisco to Hai Phong, returning Wed, Jan 14, priced at $1,024 found 6 days ago
Vietnam Airlines
Sun, Jan 25 - Tue, Feb 3
SFO
San Francisco
HPH
Hai Phong
$1,030 Roundtrip, found 6 days ago
$1,030
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Sun, Jan 25 from San Francisco to Hai Phong, returning Tue, Feb 3, priced at $1,030 found 6 days ago
Vietnam Airlines
Sun, Jan 18 - Wed, Jan 28
SFO
San Francisco
HPH
Hai Phong
$1,035 Roundtrip, found 6 days ago
$1,035
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Sun, Jan 18 from San Francisco to Hai Phong, returning Wed, Jan 28, priced at $1,035 found 6 days ago
Flights from San Francisco (SFO) to Haiphong (HPH)
Origin airport
San Francisco Intl.
Destination airport
Cat Bi
Roundtrip price
$949
Distance
7290 mi

San Francisco to Haiphong Flights

The cheapest times to fly from San Francisco to Haiphong

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 Haiphong are during the month of January. You can find some of the cheapest flights from San Francisco to Haiphong with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Francisco to Haiphong: 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 Haiphong

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 Haiphong in 2026. You can also book with separate airlines for your outbound and return journeys, from $533 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 Haiphong 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 Haiphong 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.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH) cost?
Snag a cheap one-way flight from $533 or cheap return flight from $950 from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH) 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 Cat Bi Airport (HPH)?
January is the cheapest month to fly from SFO to HPH. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH)?
To find the cheapest airline that'll fly you from SFO to HPH, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH)?
There aren't any daily direct flights departing from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SFO to HPH?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, such as the carrier and season.*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 Cat Bi Airport (HPH)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being 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 Cat Bi Airport (HPH) last-minute?
Waiting until just before your trip to book a ticket from SFO to HPH generally means paying more. Although you may find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book a SFO to HPH flight and hotel package?
Booking a SFO to HPH flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Cat Bi Airport (HPH)?
If you reserved your SFO to HPH flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, 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 more details.

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*Available to One Key members.