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Cheap flights from San Francisco to Hanoi from $343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Hanoi departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Philippine Airlines Logo
11:30 pm - 1:45 amSFO-HAN
36h 15m1 stop
Philippine Airlines Logo
2:50 am - 7:30 pmHAN-SFO
31h 40m1 stop
$655Philippine Airlines
Find Deal
Mon, Oct 27 - Tue, Nov 4
Philippine Airlines Logo
11:55 pm - 12:45 amSFO-HAN
34h 50m1 stop
Philippine Airlines Logo
1:45 am - 8:50 pmHAN-SFO
33h 05m1 stop
$657Philippine Airlines
Find Deal
Mon, Oct 13 - Sun, Oct 19
Asiana Airlines Logo
11:30 pm - 1:10 pmSFO-HAN
22h 40m1 stop
Asiana Airlines Logo
11:30 pm - 3:00 pmHAN-SFO
30h 30m1 stop
$659Asiana Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Singapore Airlines Logo
9:40 am - 5:20 pmSFO-HAN
40h 40m1 stop
Singapore Airlines Logo
6:30 pm - 8:50 amHAN-SFO
28h 20m1 stop
$660Singapore Airlines
Find Deal
Wed, Feb 18 - Wed, Mar 18
China Eastern Logo
12:00 pm - 2:10 pmSFO-HAN
35h 10m1 stop
China Eastern Logo
2:45 am - 9:00 amHAN-SFO
21h 15m1 stop
$663China Eastern
Find Deal
Thu, Nov 27 - Wed, Dec 3
Asiana Airlines Logo
11:30 pm - 12:15 pmSFO-HAN
22h 45m1 stop
Asiana Airlines Logo
11:30 pm - 3:30 pmHAN-SFO
30h 00m1 stop
$664Asiana Airlines
Find Deal
Sun, Sep 28 - Sat, Oct 18
China Eastern Logo
12:00 pm - 1:45 amSFO-HAN
22h 45m1 stop
China Eastern Logo
6:45 pm - 9:00 amHAN-SFO
29h 15m1 stop
$668China Eastern
Find Deal
Mon, Nov 10 - Wed, Nov 19
China Airlines Logo
1:05 am - 4:50 pmSFO-HAN
25h 45m1 stop
China Airlines Logo
11:35 am - 6:45 pmHAN-SFO
22h 10m1 stop
$733China Airlines
Find Deal
Tue, Oct 14 - Mon, Nov 17
China Airlines Logo
11:40 pm - 10:35 amSFO-HAN
20h 55m1 stop
China Airlines Logo
5:30 pm - 7:45 pmHAN-SFO
16h 15m1 stop
$737China Airlines
Find Deal
Thu, Mar 12 - Mon, Mar 16
Cathay Pacific Logo
12:20 am - 9:55 amSFO-HAN
19h 35m1 stop
Cathay Pacific Logo
7:05 pm - 5:30 pmHAN-SFO
36h 25m1 stop
$741Cathay Pacific
Find Deal
Tue, Sep 30 - Wed, Oct 8

Cathay Pacific flights from San Francisco to Hanoi

Our best Cathay Pacific deals on San Francisco to Hanoi flight tickets
Cathay Pacific
Sep 30
SFO12:20 amSan Francisco
19h 35m
1 stop
HAN9:55 amHanoi Noibai
Oct 8
HAN7:05 pmHanoi Noibai
36h 25m
1 stop
SFO5:30 pmSan Francisco
$741
Find similar
Cathay Pacific
Sep 18
SFO12:20 amSan Francisco
25h 15m
1 stop
HAN3:35 pmHanoi Noibai
Oct 2
HAN10:55 amHanoi Noibai
20h 35m
1 stop
SFO5:30 pmSan Francisco
$791
Find similar
Cathay Pacific
Sep 18
SFO11:10 pmSan Francisco
26h 25m
1 stop
HAN3:35 pmHanoi Noibai
Sep 29
HAN10:30 amHanoi Noibai
21h 00m
1 stop
SFO5:30 pmSan Francisco
$798
Find similar

China Eastern flights from San Francisco to Hanoi

Our best China Eastern deals on San Francisco to Hanoi flight tickets
China Eastern
Nov 27
SFO12:00 pmSan Francisco
35h 10m
1 stop
HAN2:10 pmHanoi Noibai
Dec 3
HAN2:45 amHanoi Noibai
21h 15m
1 stop
SFO9:00 amSan Francisco
$663
Find similar
China Eastern
Nov 10
SFO12:00 pmSan Francisco
22h 45m
1 stop
HAN1:45 amHanoi Noibai
Nov 19
HAN6:45 pmHanoi Noibai
29h 15m
1 stop
SFO9:00 amSan Francisco
$668
Find similar
China Eastern
Oct 16
SFO12:00 pmSan Francisco
23h 20m
1 stop
HAN1:20 amHanoi Noibai
Oct 22
HAN2:20 amHanoi Noibai
20h 45m
1 stop
SFO9:05 amSan Francisco
$690
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from San Francisco to Hanoi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Mon 10/27

11:30 pm-1:45 am

1 stop36h 15m

Hanoi Noibai

Tue 11/4

2:50 am-7:30 pm

1 stop31h 40m

$655

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Mon 10/13

11:55 pm-12:45 am

1 stop34h 50m

Hanoi Noibai

Sun 10/19

1:45 am-8:50 pm

1 stop33h 05m

$657

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Thu 11/27

11:30 pm-1:10 pm

1 stop22h 40m

Hanoi Noibai

Thu 12/4

11:30 pm-3:00 pm

1 stop30h 30m

$659

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Wed 2/18

9:40 am-5:20 pm

1 stop40h 40m

Hanoi Noibai

Wed 3/18

6:30 pm-8:50 am

1 stop28h 20m

$660

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Thu 11/27

12:00 pm-2:10 pm

1 stop35h 10m

Hanoi Noibai

Wed 12/3

2:45 am-9:00 am

1 stop21h 15m

$663

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Sun 9/28

11:30 pm-12:15 pm

1 stop22h 45m

Hanoi Noibai

Sat 10/18

11:30 pm-3:30 pm

1 stop30h 00m

$664

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Mon 11/10

12:00 pm-1:45 am

1 stop22h 45m

Hanoi Noibai

Wed 11/19

6:45 pm-9:00 am

1 stop29h 15m

$668

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Tue 10/14

1:05 am-4:50 pm

1 stop25h 45m

Hanoi Noibai

Mon 11/17

11:35 am-6:45 pm

1 stop22h 10m

$733

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Thu 3/12

11:40 pm-10:35 am

1 stop20h 55m

Hanoi Noibai

Mon 3/16

5:30 pm-7:45 pm

1 stop16h 15m

$737

San FranciscoHanoi

SFO - HAN

SFOHAN

San Francisco

Tue 9/30

12:20 am-9:55 am

1 stop19h 35m

Hanoi Noibai

Wed 10/8

7:05 pm-5:30 pm

1 stop36h 25m

$741

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Hanoi from

How to get the cheapest flight ticket from San Francisco to Hanoi

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Hanoi?

The cheapest month to fly to Hanoi from San Francisco is in September. Flight prices, which tend to average around $781, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in September, then March is your next best option. Flight prices from San Francisco to Hanoi during March average around $792.

What is the cheapest day to depart on your flight to Hanoi?

According to our data, Monday is the cheapest day to fly to Hanoi from San Francisco. The lowest ticket price found for a Monday departure recently was $892. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Hanoi on Saturday is $1,014.

What is the cheapest time of day to depart on your flight to Hanoi?

Our most recent data shows that the best time of day to fly to Hanoi is in the evening. Flights from San Francisco to Hanoi during this time can be as low as $920. Try not to purchase tickets at noon because they tend to be around $1,120. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Hanoi?

You are more likely to see cheaper flights to Hanoi from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around $940 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from San Francisco for as low as $800 on momondo.

How have San Francisco to Hanoi flight prices changed over time?

As of September 2025, prices for San Francisco to Hanoi flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Hanoi

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Hanoi according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Hanoi (SFO to HAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Hanoi

Direct flights

None
There are no direct flights from San Francisco to Hanoi. There are no popular flight routes from San Francisco to Hanoi.
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  • How far is San Francisco to Hanoi Noibai by plane?

    San Francisco and Hanoi Noibai are 7302.4 mi apart from one another. 19h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to Hanoi Noibai Airport?

    Prices for flights from San Francisco Airport to Hanoi Noibai Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Hanoi Noibai Airport?

  • How old do you have to be to fly from San Francisco Airport to Hanoi Noibai Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Hanoi Noibai Airport.

  • What documentation or ID do you need to fly to Hanoi Noibai Airport?

    The required travel and health documents for your Hanoi Noibai Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Hanoi Noibai Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Hanoi?

Best airlines flying from San Francisco to Hanoi

Compare and see reviews for airlines that fly from San Francisco to Hanoi with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $555Free CancellationRating
8.1
1,367 reviews
Search Singapore Airlines flights
China SouthernPriceFrom $567Free CancellationRating
7.5
110 reviews
Search China Southern flights
China EasternPriceFrom $654Free CancellationRating
7.2
166 reviews
Search China Eastern flights
Philippine AirlinesPriceFrom $655Free CancellationRating
7.2
911 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $666Free CancellationRating
8.2
481 reviews
Search Asiana Airlines flights
Cathay PacificPriceFrom $684Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights
Korean AirPriceFrom $686Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights
ANAPriceFrom $728Free CancellationRating
8.4
964 reviews
Search ANA flights
Japan AirlinesPriceFrom $730Free CancellationRating
8.3
1,559 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $731Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Hanoi?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Hanoi. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to Hanoi with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Hanoi from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Hanoi?

momondo helps you find the best flight between San Francisco and Hanoi by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to Hanoi right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to Hanoi flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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