Vietnam

$763+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SGN
Jul 11 — Jul 181
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Vietnam with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 June 11, 2026.

This Japan Airlines 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
PWM
-
SGN
2 stops36h 25m
Japan Airlines
Mon 9/1411:15 pm
SGN
-
PWM
2 stops35h 37m
Japan Airlines
Deal found 6/10$1,283
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.
Sun 8/236:00 am
PWM
-
SGN
2 stops28h 55m
United Airlines
Sat 8/2911:15 pm
SGN
-
PWM
2 stops31h 09m
United Airlines
Deal found 6/11$1,367
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/76:00 am
PWM
-
SGN
2 stops28h 55m
United Airlines
Tue 7/1411:15 pm
SGN
-
PWM
2 stops33h 26m
United Airlines
Deal found 6/9$1,595
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:15 am
PWM
-
SGN
3 stops29h 50m
United Airlines
Mon 9/1411:15 pm
SGN
-
PWM
2 stops33h 08m
United Airlines
Deal found 6/10$1,846
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:17 pm
PWM
-
SGN
3 stops34h 38m
Singapore Airlines
Sat 8/297:40 pm
SGN
-
PWM
3 stops39h 34m
Singapore Airlines
Deal found 6/11$3,360
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:30 am
PWM
-
SGN
3 stops29h 15m
American Airlines
Sat 8/2911:15 pm
SGN
-
PWM
3 stops33h 06m
American Airlines
Deal found 6/10$5,358

Find flight deals from Portland to Vietnam

Keep the following information in mind while searching for Portland to Vietnam flight deals. Data was last updated June 11, 2026.

Round-trip from

$1,283
(Japan Airlines)

One-way from

$763
(BusinessClass)
From Portland to Vietnam
One-way flight from Portland to Vietnam

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 June 11, 2026.
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

Cheapest round-trip

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Thu 9/10

6:00 am-5:25 am

2 stops36h 25m

Ho Chi Minh City

Mon 9/14

11:15 pm-11:52 pm

2 stops35h 37m

$1,283
Quickest round-trip

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Sun 8/23

8:15 am-10:05 pm

2 stops26h 50m

Ho Chi Minh City

Sat 8/29

11:15 pm-7:24 pm

2 stops31h 09m

$1,367
Cheapest one-way

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Fri 7/10

6:00 am-5:25 am

2 stops36h 25m

$763
Quickest one-way

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Fri 7/10

5:15 am-10:05 pm

3 stops29h 50m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Sorted by cheapest first

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
No data available for this route at this time. Please check back soon.

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 June 11, 2026.
See what other customers who have flown with 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.

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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.

  • How long is the flight from Portland, Maine to Vietnam?

    For as low as $1,283, Japan Airlines can have you in Vietnam from Portland, Maine in 36h 25m. Portland, Maine and Vietnam are separated by a distance of 8663 mi.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Portland to Vietnam

Discover the top airline that operate flights from Portland to Vietnam. 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$845Average$1,320FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.