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Cheap flights from San Francisco to Vietnam from £330

SFO — SGN
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Vietnam

Mon 9/1123:00 -
1 stop32h 25m
Thu 12/1113:30 -
1 stop16h 00m
Deal found 21/10£622
Mon 7/1211:45 -
1 stop19h 00m
Wed 23/1212:20 -
1 stop36h 15m
Deal found 22/10£652
Mon 16/1123:00 -
1 stop32h 25m
Wed 25/1123:50 -
1 stop29h 40m
Deal found 21/10£655
Sat 28/1111:44 -
2 stops43h 01m
Sun 13/1223:05 -
1 stop25h 30m
Deal found 21/10£656
Mon 7/1208:45 -
2 stops23h 30m
Sun 13/1200:35 -
1 stop23h 45m
Deal found 23/10£660
Mon 16/1106:17 -
2 stops37h 53m
Wed 2/1223:05 -
2 stops32h 20m
Deal found 24/10£661
Mon 16/1111:45 -
1 stop19h 00m
Thu 3/1223:05 -
2 stops48h 59m
Deal found 24/10£664
Sat 14/1109:56 -
2 stops58h 14m
Fri 4/1223:05 -
2 stops32h 13m
Deal found 24/10£665
Sun 8/1108:45 -
2 stops23h 20m
Wed 11/1100:25 -
2 stops37h 41m
Deal found 23/10£667
Sun 15/1111:44 -
2 stops32h 26m
Thu 3/1212:20 -
2 stops35h 44m
Deal found 24/10£669
Sun 8/1123:00 -
1 stop32h 25m
Sun 15/1123:50 -
1 stop29h 40m
Deal found 25/10£670

Find flight deals from San Francisco to Vietnam

Round-trip from

£622

One-way from

£330

Popular in

December

Cheapest in

March

Average price

£655
Asiana Airlines
  • Asiana Airlines
  • 9/2-4/3
  • 2 total stops
  • 38h 10m total
  • San Francisco to Vietnam
Search Deals
Asiana Airlines
  • Asiana Airlines
  • 6/1-31/12
  • 1 total stop
  • 22h 10m total
  • San Francisco to Vietnam
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Francisco to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Sun 17/1

11:45-11:10

1 stop32h 25m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£334

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Tue 17/11

11:45-11:10

1 stop32h 25m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£334

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Fri 19/3

12:45-11:10

1 stop32h 25m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£334

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Mon 7/12

11:45-11:10

1 stop32h 25m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£334

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Wed 25/11

05:50-11:10

2 stops38h 20m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£336
Fastest return journey

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Sun 6/12

10:45-23:15

1 stop21h 30m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£336

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Sun 21/3

06:05-21:45

2 stops25h 40m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£336

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Tue 19/1

14:00-21:45

2 stops40h 45m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£339

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Sun 14/2

16:15-11:10

2 stops27h 55m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£339

San FranciscoHanoi

SFO San Francisco - HAN Hanoi Noibai

SFOHAN

San Francisco

Fri 12/3

13:05-21:45

2 stops41h 40m

Hanoi Noibai

Wed 31/12

00:00-08:00

Nonstop0h 00m

£339

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from San Francisco with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Vietnam

What is the cheapest month to book a flight from San Francisco to Vietnam?

Currently, March is the cheapest month in which you can book a flight from San Francisco to Vietnam (average of £580). Flying from San Francisco to Vietnam in December is currently the most expensive (average of £999). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How often are flights from San Francisco to Vietnam delayed?

About 16% of weekly flights between San Francisco and Vietnam have experienced delays in the past year, with the average delay time being 84 minutes.

What is the most punctual flight time for San Francisco to Vietnam flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to Vietnam flights?

Over the past year, Vietnam Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

How far ahead should I book a flight from San Francisco to Vietnam?

To ensure you get the cheapest price possible for a flight from San Francisco to Vietnam, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • What airport do you fly from for flights from San Francisco to Vietnam?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Vietnam. It is only a 11.0 mi journey to San Francisco (SFO) from San Francisco’s city center.

  • How popular is this San Francisco to Vietnam flight route?

    Flights from San Francisco to Vietnam have been viewed 1 times in the past calendar month.

  • How long is the flight from San Francisco to Vietnam?

    For as low as £637, Asiana Airlines can have you in Vietnam from San Francisco in 22h 10m. There are 7301 mi between San Francisco and Vietnam. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from San Francisco to Vietnam that include hotel bookings?

    Yes. In addition to deals on San Francisco to Vietnam flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Vietnam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Vietnam.

  • Can I find deals for business class flights from San Francisco to Vietnam?

    Yes. Cheapflights offers flight deals from San Francisco to Vietnam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Vietnam?

    Currently, March is the cheapest month in which you can book a flight from San Francisco to Vietnam (average of £580). Flying from San Francisco to Vietnam in December is currently the most expensive (average of £999). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from San Francisco to Vietnam?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco to Vietnam. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Vietnam?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Vietnam.

Can Cheapflights find flights from San Francisco to Vietnam with no change fees?

Certainly. Search results for flights to Vietnam from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco to Vietnam become cheaper?

Yes! Start tracking prices for San Francisco to Vietnam flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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