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$423+ Cheap flights from San Francisco (SFO) to Hanoi (HAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — HAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Hanoi Noibai are usually found in March or August, booked 43 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from San Francisco to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$719
(CheapOair)

One-way from

$423
(Flightnetwork)

Popular in

December

Cheapest in

March

Average price

$1,312
From San Francisco to Hanoi Noibai
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One-way flight from San Francisco to Hanoi Noibai
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Highest demand for flights based on searches. 11% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Francisco to Hanoi

Cheapest flights from San Francisco to Hanoi
Explore the most affordable flight options available from San Francisco to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:05 amSFO - HAN
1 stop25h 45mChina Airlines
Tue 10/711:35 amHAN - SFO
1 stop22h 20mChina Airlines
Deal found 6/12$713
This Priceline deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:00 pmSFO - HAN
2 stops59h 45mChina Eastern
Sun 11/302:20 pmHAN - SFO
1 stop33h 40mChina Eastern
Deal found 6/11$715
This Gurufare deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/201:00 pmSFO - HAN
2 stops31h 40mMultiple Airlines
Mon 10/2711:30 pmHAN - SFO
1 stop25h 00mMultiple Airlines
Deal found 6/10$720
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:00 pmSFO - HAN
2 stops31h 10mKorean Air
Thu 11/2012:20 pmHAN - SFO
2 stops36h 40mKorean Air
Deal found 6/12$723
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1111:55 pmSFO - HAN
1 stop34h 50mPhilippine Airlines
Mon 10/201:45 amHAN - SFO
1 stop33h 05mPhilippine Airlines
Deal found 6/12$728
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:15 pmSFO - HAN
1 stop20h 00mUnited Airlines
Tue 9/3011:35 pmHAN - SFO
1 stop24h 55mUnited Airlines
Deal found 6/11$748
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:00 amSFO - HAN
1 stop21h 05mANA
Fri 1/1612:25 amHAN - SFO
1 stop23h 50mANA
Deal found 6/12$757
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2712:50 amSFO - HAN
1 stop19h 20mSTARLUX Airlines
Fri 10/1711:10 amHAN - SFO
1 stop23h 20mSTARLUX Airlines
Deal found 6/12$762
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:30 amSFO - HAN
1 stop40h 05mSingapore Airlines
Wed 10/2912:35 pmHAN - SFO
1 stop34h 15mSingapore Airlines
Deal found 6/10$771
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:10 pmSFO - HAN
1 stop26h 25mCathay Pacific
Wed 10/297:25 pmHAN - SFO
1 stop29h 20mCathay Pacific
Deal found 6/10$776
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:05 amSFO - HAN
2 stops24h 35mDelta
Mon 12/1512:20 pmHAN - SFO
2 stops25h 12mDelta
Deal found 6/12$781
This Vietnam Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:50 pmSFO - HAN
1 stop20h 15mVietnam Airlines
Thu 10/231:00 pmHAN - SFO
1 stop19h 40mVietnam Airlines
Deal found 6/12$800

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from San Francisco to Hanoi that are best for you.

Fly from

San Francisco

Fly to

Hanoi

Route

Depart

Return

Price

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Mon 9/1

12:00 pm-8:15 am

2 stops30h 15m

Hanoi Noibai

Sun 11/30

2:45 am-9:00 am

1 stop21h 15m

$719

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Tue 8/5

1:05 am-4:50 pm

1 stop25h 45m

Hanoi Noibai

Thu 9/4

11:35 am-8:30 pm

1 stop22h 55m

$725

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Sat 8/16

6:58 pm-10:40 am

2 stops25h 42m

Hanoi Noibai

Thu 8/28

11:10 pm-11:00 am

1 stop25h 50m

$728

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Fri 8/22

11:55 pm-12:45 am

1 stop34h 50m

Hanoi Noibai

Sat 8/30

11:25 am-8:50 pm

1 stop23h 25m

$730

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Sun 8/31

9:01 am-10:15 pm

2 stops23h 14m

Hanoi Noibai

Sun 9/14

11:35 pm-10:30 am

1 stop24h 55m

$752

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Sat 8/30

12:50 am-10:10 am

1 stop19h 20m

Hanoi Noibai

Sun 9/14

11:25 am-8:30 pm

1 stop23h 05m

$762

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Fri 8/22

9:01 am-10:15 pm

2 stops23h 14m

Hanoi Noibai

Sat 8/30

11:35 pm-10:55 am

1 stop25h 20m

$768

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Fri 8/22

5:55 am-9:35 pm

2 stops25h 40m

Hanoi Noibai

Sat 8/30

12:00 pm-10:51 pm

2 stops24h 51m

$781

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Thu 8/21

1:45 am-10:15 pm

1 stop30h 30m

Hanoi Noibai

Sat 8/30

11:35 pm-7:05 pm

2 stops33h 30m

$794

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Wed 7/30

11:30 pm-12:15 pm

1 stop22h 45m

Hanoi Noibai

Thu 8/14

11:30 pm-4:00 pm

1 stop30h 30m

$907

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 32 results
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Best time to book a flight from San Francisco to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Hanoi. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Hanoi, you should look to book at least 43 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.

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

Currently, September is the cheapest month in which you can book a flight from San Francisco to Hanoi (average of $975). Flying from San Francisco to Hanoi in December is currently the most expensive (average of $1,618). 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.

What is the cheapest time of day to fly from SFO to HAN?

Find hourly flight availability from San Francisco to Hanoi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from San Francisco to Hanoi in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight at noon.

Rainfall in Hanoi by month

Plan your trip to Hanoi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hanoi ranges from 0.6 - 11.7 inches per month. August is typically the wettest month, when rainfall can reach 11.7 in. December is typically the driest time to visit Hanoi when rainfall is around 0.6 in.

Temperature in Hanoi by month

Plan your trip to Hanoi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 62.6 F).

Reviews of airlines servicing Hanoi

Get insights into the airlines that provide service to Hanoi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hanoi. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown STARLUX Airlines, EVA Air and Korean Air from San Francisco to Hanoi. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,490 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Overall

9.1

Entertainment

8.9

Comfort

9.0

Food

8.8

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Francisco to Hanoi round-trip?

    According to our current data, China Eastern ($719), China Airlines ($725), and Korean Air ($728) offers the cheapest pricing from San Francisco to Hanoi. China Eastern is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Francisco to Hanoi one-way?

    To fly one-way, consider booking your trip with Asiana Airlines, which is currently one of the cheapest options available, starting at $423. STARLUX Airlines flights start at $425 while deals on China Airlines start at $428 one-way.

  • Where are the most common layover locations when flying from San Francisco to Hanoi?

    Of the flights from San Francisco to Hanoi that have layovers, most of them stop in Taipei City. Hong Kong sees the next most layovers on San Francisco to Hanoi flights.

  • What are some popular things to do or see while on a layover in Taipei City?

    Taipei City travelers tend to visit Taipei 101, Shilin Night Market, and Raohe Street Night Market more than anywhere else. Taipei 101, Shilin Night Market, and Raohe Street Night Market can be accessed by traveling approximately 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl. Travelers in need of a car in Taipei City can rent one for about $69 per day.

  • What are some popular points of interest to see during a layover in Hong Kong?

    Hong Kong Disneyland, Shatin Baptist Church, and Ocean Park are the most popular attractions in Hong Kong if you're in need of something to do during your layover. Those on a layover in Hong Kong interested in visiting Hong Kong Disneyland, Shatin Baptist Church, or Ocean Park can do so by traveling 7.8 mi, 18.3 mi, and 16.9 mi, respectively from Hong Kong Intl.

  • Where are the least popular layover locations for San Francisco to Hanoi flights?

    San Francisco to Hanoi flights have a layover in Seoul least often. Tokyo sees the second fewest layovers for non-direct flights flying from San Francisco to Hanoi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Hanoi 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 Hanoi?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Hanoi (average of $975). Flying from San Francisco to Hanoi in December is currently the most expensive (average of $1,618). 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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Alternative routes for San Francisco to Hanoi

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from San Francisco to Hanoi

Discover the top 10 airlines that operate flights from San Francisco to Hanoi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$577Average$1,374FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$647Average$840FlexibilityNo cancel feeOn-time81%
China EasternCheapest$654Average$794FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$676Average$806FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$686Average$858FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$701Average$868FlexibilityNo cancel feeOn-time72%
ANACheapest$728Average$905FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$730Average$828FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$731Average$1,090FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$736Average$826FlexibilityNo cancel feeOn-time70%

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