HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Vietnam

$1,520+ Cheap flights from Portland, ME (PWM) to Vietnam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SGN
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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 April 10, 2026.

This Qatar Airways deal was found by Cheapflights users on 4/6. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am
PWM
-
SGN
2 stops38h 40m
Qatar Airways
Mon 9/218:00 pm
SGN
-
PWM
2 stops38h 52m
Qatar Airways
Deal found 4/6$1,520
This United Airlines deal was found by Cheapflights users on 4/6. 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 9/176:00 am
PWM
-
SGN
3 stops29h 05m
United Airlines
Mon 9/2111:15 pm
SGN
-
PWM
2 stops26h 20m
United Airlines
Deal found 4/6$1,525
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Mon 9/145:15 am
PWM
-
SGN
2 stops29h 40m
United Airlines
Thu 9/177:00 am
SGN
-
PWM
2 stops38h 12m
United Airlines
Deal found 4/7$1,532
This KAYAK deal was found by Cheapflights users on 4/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
PWM
-
SGN
2 stops31h 15m
ANA
Mon 8/317:00 am
SGN
-
PWM
2 stops26h 01m
ANA
Deal found 4/10$1,570
This United Airlines deal was found by Cheapflights users on 4/6. 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 6/256:25 pm
PWM
-
SGN
3 stops40h 40m
United Airlines
Fri 7/107:00 am
SGN
-
PWM
3 stops42h 26m
United Airlines
Deal found 4/6$1,666
This Qatar Airways deal was found by Cheapflights users on 4/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:03 pm
PWM
-
SGN
2 stops35h 47m
Qatar Airways
Thu 9/178:00 pm
SGN
-
PWM
2 stops27h 17m
Qatar Airways
Deal found 4/9$1,696
This Ovago deal was found by Cheapflights users on 4/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:00 am
PWM
-
SGN
2 stops29h 05m
Multiple Airlines
Fri 7/107:00 am
SGN
-
PWM
2 stops42h 26m
Multiple Airlines
Deal found 4/6$1,737
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Wed 7/86:25 pm
PWM
-
SGN
3 stops40h 40m
United Airlines
Mon 8/3111:15 pm
SGN
-
PWM
2 stops26h 13m
United Airlines
Deal found 4/10$1,800
This Priceline deal was found by Cheapflights users on 4/6. 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.
Fri 4/106:00 am
PWM
-
SGN
2 stops24h 20m
Multiple Airlines
Sun 4/127:35 pm
SGN
-
PWM
2 stops39h 24m
Multiple Airlines
Deal found 4/6$1,829

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 April 10, 2026.

Round-trip from

$1,520
(Qatar Airways)
From Portland to Vietnam
Search Deals

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 April 10, 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 9/17

6:00 am-7:40 am

2 stops38h 40m

Ho Chi Minh City

Mon 9/21

8:00 pm-11:52 pm

2 stops38h 52m

$1,520

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Thu 9/17

5:15 am-10:05 pm

3 stops29h 50m

Ho Chi Minh City

Mon 9/21

11:15 pm-11:59 pm

2 stops35h 44m

$1,525

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 9/14

5:15 am-9:55 pm

2 stops29h 40m

Ho Chi Minh City

Thu 9/17

7:00 am-10:12 am

2 stops38h 12m

$1,532

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Thu 6/25

6:25 pm-10:05 pm

3 stops40h 40m

Ho Chi Minh City

Fri 7/10

7:00 am-2:26 pm

3 stops42h 26m

$1,666
Quickest round-trip

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 9/14

3:03 pm-1:50 pm

2 stops35h 47m

Ho Chi Minh City

Thu 9/17

8:00 pm-12:17 pm

2 stops27h 17m

$1,696

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

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

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

Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Vietnam (average of $564). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,038). 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 April 10, 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.
United Airlines
7.4
Good
9,562 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,562 reviews
United Airlines
7.4
Good
9,562 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $1,525, Qatar Airways can have you in Vietnam from Portland, Maine in 29h 50m. Portland, Maine and Vietnam are separated by a distance of 8663 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, April is the cheapest month in which you can book a flight from Portland, Maine to Vietnam (average of $564). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,038). 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

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 April 10, 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.