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Cheap flights from Portland, ME (PWM) to Vietnam

PWM — SGN
Jan 19 — Jan 261
Mon 1/19
Mon 1/26
1 adult, Economy
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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 December 20, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Popular in

June

Cheapest in

September

Average price

$1,380
Provider with most accurate pricing for Boston Logan Intl-Ho Chi Minh City flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Ho Chi Minh City flights.
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Highest demand for flights based on searches. 17% potential increase in price ($235 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 $640). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,117). 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 December 20, 2025.
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
9,099 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,099 reviews
United Airlines
7.4
Good
9,099 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 $640). Flying from Portland, Maine to Vietnam in June is currently the most expensive (average of $1,117). 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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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 December 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$971Average$1,320FlexibilityNo cancel feeOn-time69%

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