Cheap flights from Portland to Vietnam from $366

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Vietnam departing on 1/20. 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

Enter your travel dates to find the best prices.
Delta Logo
5:19 am - 10:40 amPDX-HAN
39h 21m2 stops
Delta Logo
11:10 pm - 4:56 pmHAN-PDX
31h 46m2 stops
$800Delta
Find Deal
Sun, Mar 29 - Tue, Apr 7
Korean Air Logo
5:40 pm - 10:40 amPDX-HAN
27h 00m2 stops
Korean Air Logo
11:10 pm - 10:23 pmHAN-PDX
37h 13m2 stops
$805Korean Air
Find Deal
Tue, Mar 31 - Tue, Apr 7
ANA Logo
7:45 am - 11:05 pmPDX-HAN
24h 20m2 stops
ANA Logo
12:25 am - 2:48 pmHAN-PDX
29h 23m2 stops
$809ANA
Find Deal
Wed, Jan 21 - Tue, Jan 27
China Airlines Logo
11:30 am - 4:50 pmPDX-HAN
39h 20m2 stops
China Airlines Logo
5:50 pm - 7:54 amHAN-PDX
28h 04m2 stops
$811China Airlines
Find Deal
Wed, Apr 1 - Mon, Apr 13
China Airlines Logo
2:50 pm - 9:40 amPDX-SGN
28h 50m2 stops
China Airlines Logo
5:30 pm - 9:28 amSGN-PDX
29h 58m2 stops
$815China Airlines
Find Deal
Fri, Apr 24 - Sun, May 31
United Airlines Logo
7:30 am - 10:55 pmPDX-SGN
24h 25m2 stops
United Airlines Logo
6:00 am - 12:39 amSGN-PDX
33h 39m2 stops
$817United Airlines
Find Deal
Mon, Jan 5 - Sat, Jan 31
United Airlines Logo
1:40 pm - 10:55 pmPDX-SGN
42h 15m2 stops
United Airlines Logo
6:00 am - 6:47 pmSGN-PDX
26h 47m2 stops
$823United Airlines
Find Deal
Thu, Feb 26 - Fri, Mar 27
Korean Air Logo
6:30 am - 10:25 pmPDX-SGN
24h 55m2 stops
Korean Air Logo
8:00 am - 1:11 pmSGN-PDX
19h 11m2 stops
$828Korean Air
Find Deal
Tue, Jan 13 - Sat, Mar 14
ANA Logo
7:30 am - 11:05 pmPDX-HAN
48h 35m2 stops
ANA Logo
12:25 am - 6:47 pmHAN-PDX
32h 22m2 stops
$848ANA
Find Deal
Tue, Feb 24 - Tue, Mar 17
Delta Logo
5:30 am - 2:15 pmPDX-DAD
41h 45m2 stops
Delta Logo
3:45 pm - 4:56 pmDAD-PDX
39h 11m2 stops
$884Delta
Find Deal
Fri, Feb 27 - Sun, Mar 15

Cathay Pacific flights from Portland to Vietnam

Our best Cathay Pacific deals on Portland to Vietnam flight tickets
Cathay Pacific
Feb 10
PDX2:57 pmPortland
28h 38m
2 stops
SGN10:35 amHo Chi Minh City
Mar 10
SGN11:35 amHo Chi Minh City
36h 00m
2 stops
PDX9:35 amPortland
Cathay Pacific
Feb 9
PDX2:57 pmPortland
28h 38m
2 stops
SGN10:35 amHo Chi Minh City
Feb 23
SGN11:35 amHo Chi Minh City
37h 00m
2 stops
PDX9:35 amPortland
Cathay Pacific
Feb 25
PDX9:15 pmPortland
21h 50m
2 stops
HAN10:05 amHanoi Noibai
Mar 16
HAN7:30 pmHanoi Noibai
35h 11m
2 stops
PDX4:41 pmPortland

Korean Air flights from Portland to Vietnam

Our best Korean Air deals on Portland to Vietnam flight tickets
Korean Air
Mar 31
PDX5:40 pmPortland
27h 00m
2 stops
HAN10:40 amHanoi Noibai
Apr 7
HAN11:10 pmHanoi Noibai
37h 13m
2 stops
PDX10:23 pmPortland
Korean Air
Jan 13
PDX6:30 amPortland
24h 55m
2 stops
SGN10:25 pmHo Chi Minh City
Mar 14
SGN8:00 amHo Chi Minh City
19h 11m
2 stops
PDX1:11 pmPortland
Korean Air
Feb 6
PDX6:25 amPortland
25h 00m
2 stops
SGN10:25 pmHo Chi Minh City
Feb 26
SGN8:00 amHo Chi Minh City
49h 49m
2 stops
PDX6:49 pmPortland

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Vietnam 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 November 26, 2025.
Use the filters below to find and compare flights from Portland to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Sun 3/29

5:19 am-10:40 am

2 stops39h 21m

Hanoi Noibai

Tue 4/7

11:10 pm-4:56 pm

2 stops31h 46m

$800

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Tue 3/31

5:40 pm-10:40 am

2 stops27h 00m

Hanoi Noibai

Tue 4/7

11:10 pm-10:23 pm

2 stops37h 13m

$805

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Wed 1/21

7:45 am-11:05 pm

2 stops24h 20m

Hanoi Noibai

Tue 1/27

12:25 am-2:48 pm

2 stops29h 23m

$809

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Wed 4/1

11:30 am-4:50 pm

2 stops39h 20m

Hanoi Noibai

Mon 4/13

5:50 pm-7:54 am

2 stops28h 04m

$811

PortlandHo Chi Minh City

PDX - SGN

PDXSGN

Portland

Fri 4/24

2:50 pm-9:40 am

2 stops28h 50m

Ho Chi Minh City

Sun 5/31

5:30 pm-9:28 am

2 stops29h 58m

$815

PortlandHo Chi Minh City

PDX - SGN

PDXSGN

Portland

Mon 1/5

7:30 am-10:55 pm

2 stops24h 25m

Ho Chi Minh City

Sat 1/31

6:00 am-12:39 am

2 stops33h 39m

$817

PortlandHo Chi Minh City

PDX - SGN

PDXSGN

Portland

Thu 2/26

1:40 pm-10:55 pm

2 stops42h 15m

Ho Chi Minh City

Fri 3/27

6:00 am-6:47 pm

2 stops26h 47m

$823

PortlandHo Chi Minh City

PDX - SGN

PDXSGN

Portland

Tue 1/13

6:30 am-10:25 pm

2 stops24h 55m

Ho Chi Minh City

Sat 3/14

8:00 am-1:11 pm

2 stops19h 11m

$828

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Tue 2/24

7:30 am-11:05 pm

2 stops48h 35m

Hanoi Noibai

Tue 3/17

12:25 am-6:47 pm

2 stops32h 22m

$848

PortlandDa Nang

PDX - DAD

PDXDAD

Portland

Fri 2/27

5:30 am-2:15 pm

2 stops41h 45m

Da Nang

Sun 3/15

3:45 pm-4:56 pm

2 stops39h 11m

$884

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 Vietnam from

How to get the cheapest flight ticket from Portland to Vietnam

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 Vietnam?

The month of February is, on average, the cheapest month to fly to Vietnam from Portland, with most prices found around $869. If you don’t want to visit Vietnam in February, then you should wait until September to fly from Portland, when ticket prices are also cheap, with an average price of $888.

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

According to our data, Friday is the cheapest day to fly to Vietnam from Portland. The lowest ticket price found for a Friday departure recently was $1,106. 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 Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Vietnam on Tuesday is $1,285.

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

Flying to Vietnam from Portland at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,136 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to Vietnam, so prices are often more expensive at around $1,246 per ticket.

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

You are more likely to see cheaper flights to Vietnam from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $1,041 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Portland for as low as $853 on momondo.

Cheap Portland to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Vietnam

Fastest flight time

21h 05m

Direct flights

None
The fastest flight from Portland to Vietnam takes 21h 05m
There are no direct flights from Portland to Vietnam. There are no popular flight routes from Portland to Vietnam.
  • When did momondo last update prices for flights from Portland Airport to Vietnam?

    Prices for flights from Portland Airport to Vietnam are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Vietnam?

  • How old do you have to be to fly from Portland Airport to Vietnam?

    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 Portland Airport to Vietnam.

  • What documentation or ID do you need to fly to Vietnam?

    The travel and health documents required for your trip to Vietnam can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Vietnam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Vietnam

Compare and see reviews for airlines that fly from Portland to Vietnam with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $631Free CancellationRating
7.9
7,998 reviews
Search Delta flights
STARLUX AirlinesPriceFrom $769Free CancellationRating
8.9
235 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $779Free CancellationRating
8.1
1,409 reviews
Search Singapore Airlines flights
ANAPriceFrom $788Free CancellationRating
8.4
1,010 reviews
Search ANA flights
Korean AirPriceFrom $789Free CancellationRating
8.4
1,170 reviews
Search Korean Air flights
United AirlinesPriceFrom $799Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
China AirlinesPriceFrom $810Free CancellationRating
8.3
782 reviews
Search China Airlines flights
Japan AirlinesPriceFrom $859Free CancellationRating
8.3
1,630 reviews
Search Japan Airlines flights
EVA AirPriceFrom $901Free CancellationRating
8.4
1,283 reviews
Search EVA Air flights
Cathay PacificPriceFrom $907Free CancellationRating
7.6
1,068 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Vietnam?

Finding the right flight to Vietnam from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Vietnam quick and easy, saving you time and money.

Can I find flights from Portland to Vietnam with flexible booking policies on momondo?

momondo does allow users to show only those flights to Vietnam from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Vietnam?

momondo provides multiple filters to help you find the best flight to Vietnam from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Vietnam from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Vietnam trip

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1 adult
Fri 12/26
Fri 1/2

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