The cheapest times to fly from HPH to SFO are

  • February 5th to May 27th
  • October 15th to November 25th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from HPH to SFO is early May. Prices can be as high as $8329 for Tuesday flights during early to mid January, or as low as $1057 for Saturday flights around early May.


When to Fly to San Francisco

Flying from Hai Phong (HPH) to San Francisco, CA (SFO) will usually cost between $1057 to $1533 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early May with an average ticket price of $1057. Due to high demand the most expensive time to fly is early to mid January, with an average price of $3275. Planning your trip to low-cost times can easily save you $2218 on economy flights and even more on first-class flights. Generally, any price below $1104 can be considered a good price for a round-trip HPH to SFO flight.

See below for a graph of average weekly prices for the HPH to SFO route. All prices are for round-trip tickets in USD.

HPH to SFO Flight Prices

Compared to other flights, the HPH to SFO flight is slightly more expensive than the average and costs much less than the average flight leaving from Hai Phong. The average price per mile (for a direct flight) is $0.09, which is far below average.


Flight Prices by Day of the Week

Saturday is usually the cheapest day to fly to SFO, and Tuesday the cheapest day to fly back into HPH. Tuesdays are the most expensive days to fly to San Francisco, and Saturdays are the most expensive days to return to Hai Phong. Selecting flights on the least expensive days could save you up to $192 (13%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $1182. Return trip prices are from the SFO to HPH flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from HPH to SFO can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 14 hour 6 minutes may not be realistic.


Flight Hacking HPH to SFO

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from HPH to SFO — but Champion Traveler does!

Hack #1: Ho Chi Minh City (HPH > SGN > SFO)

  • Price for both tickets: $909
  • Average savings: $195 (17.66%)

See HPH to BKK flights

Hack #2: Bangkok (HPH > BKK > SFO)

  • Price for both tickets: $926
  • Average savings: $178 (16.12%)

See HPH to SGN flights

Hack #3: Seoul (HPH > ICN > SFO)

  • Price for both tickets: $1015
  • Average savings: $89 (8.06%)

See HPH to ICN flights


Flight Questions Answered

Still have questions about flying from HPH to SFO? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air France, American, Cathay Dragon, Cathay Pacific, China Airlines, China Southern, EVA Air, Hainan, Singapore Airlines, United, Vietnam Airlines, and potentially more during busy seasons.

How far away is it from San Francisco International Airport to Catbi International Airport?

The distance between the two airports is roughly 7290 miles or 11732 kilometers.

How long does it take to fly from HPH to SFO?

The real-world flight time for a nonstop HPH to SFO flight is about 14 hour 6 minutes.

How many flights go between Hai Phong and San Francisco, CA?

It depends on the day of the week and the date, but a typical day might have around 1 available flights from HPH to SFO.


Airport Location Info


Departing Airport

Origination codeHPH
Origination airport nameCatbi International Airport
CityHai Phong

Return Airport

Destination codeSFO
Destination airport nameSan Francisco International Airport
CitySan Francisco, CA
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.