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$723+ Cheap flights from Portland, ME (PWM) to Vietnam

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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SGN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Portland to Vietnam

Keep the following information in mind while searching for Portland to Vietnam flight deals. Data was last updated July 3, 2025.

Round-trip from

$1,085
(Japan Airlines)

One-way from

$723
(United Airlines)
From Portland to Vietnam
Search Deals
One-way flight from Portland to Vietnam
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Find flight deals from Portland to Vietnam

Cheapest flights from Portland to Vietnam
Explore the most affordable flight options available from Portland to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Japan Airlines deal was found by Cheapflights users on 7/2. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:10 pmPWM - SGN
2 stops65h 10mMultiple Airlines
Sun 11/3011:40 pmSGN - PWM
2 stops52h 59mMultiple Airlines
Deal found 7/2$1,085
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 11/44:48 pmPWM - SGN
3 stops42h 07mUnited Airlines
Sun 11/3011:05 pmSGN - PWM
2 stops31h 54mUnited Airlines
Deal found 7/2$1,100

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Portland to Vietnam that are best for you.

Fly from

Portland

Fly to

Vietnam

Route

Depart

Return

Price

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 11/4

5:10 pm-10:20 pm

2 stops65h 10m

Ho Chi Minh City

Sun 11/30

11:40 pm-4:39 pm

2 stops52h 59m

$1,085

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 11/4

4:48 pm-10:55 pm

3 stops42h 07m

Ho Chi Minh City

Sun 11/30

11:05 pm-6:59 pm

2 stops31h 54m

$1,100

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Fri 7/25

5:35 am-9:55 pm

2 stops29h 20m

$723

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Fri 7/25

2:19 pm-6:25 pm

3 stops41h 06m

$1,861

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Portland to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Portland 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 Portland to Vietnam

What is the cheapest month to book a flight from Portland, Maine to Vietnam?

Currently, March is the cheapest month in which you can book a flight from Portland, Maine to Vietnam (average of $917). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,435). 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.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. 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 Vietnam. Reviews last updated July 3, 2025.
See what other customers who have flown with Singapore Airlines and United Airlines from Portland to Vietnam have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,320 reviews

Entertainment

8.0

Crew

8.6

Food

7.7

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very good
1,320 reviews
Singapore Airlines
8.1
Very good
1,320 reviews

Entertainment

8.0

Crew

8.6

Food

7.7

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
United Airlines
7.4
Good
8,861 reviews
Singapore Airlines
8.1
Very good
1,320 reviews

Entertainment

8.0

Crew

8.6

Food

7.7

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

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

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

    Located just 2.9 mi from the city center, Portland (PWM) is the airport most travelers will use when flying to Vietnam from Portland.

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

    Yes. In addition to deals on Portland to Vietnam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Vietnam?

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland, Maine to Vietnam?

    Currently, March is the cheapest month in which you can book a flight from Portland, Maine to Vietnam (average of $917). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,435). 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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