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

For as low as $1,078, Korean Air can have you in Vietnam from Portland, Maine in 27h 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.

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 13.4 inches per month. September is typically the wettest month, when rainfall can reach 13.4 in. February is typically the driest time to visit Vietnam when rainfall is around 0.0 in.

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

What is the cheapest time of day to fly from PWM to VN?

When flying from Portland, Maine to Vietnam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$1,070+ Flights from Portland, ME to Vietnam

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

Best flights from Portland to Vietnam
Discover carefully curated flight deals from Portland to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Tue 1/276:17 amPWM - SGN

2 stops29h 03mKorean Air

Tue 2/38:00 amSGN - PWM

2 stops28h 20mKorean Air

Deal found 12/13

$1,070

Tue 1/276:00 amPWM - SGN

2 stops27h 50mUnited Airlines

Tue 2/37:30 amSGN - PWM

3 stops27h 58mUnited Airlines

Deal found 12/13

$1,078

Last-minute flights from Portland to Vietnam
Discover last-minute flight deals from Portland to Vietnam. Data last updated December 15, 2025 and is based on user searches.

Tue 1/276:17 amPWM - SGN

2 stops29h 03mKorean Air

Tue 2/38:00 amSGN - PWM

2 stops28h 20mKorean Air

Deal found 12/13

$1,070

Tue 1/276:00 amPWM - SGN

2 stops27h 50mUnited Airlines

Tue 2/37:30 amSGN - PWM

3 stops27h 58mUnited Airlines

Deal found 12/13

$1,078

One-way flights from Portland to Vietnam
Search for one-way flight options from Portland to Vietnam. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Mon 3/163:44 pmPWM - SGN

3 stops44h 11mUnited Airlines

Deal found 12/14

$1,200

Mon 3/162:30 pmPWM - SGN

2 stops30h 10mAir France

Deal found 12/14

$2,133

Find flight deals from Portland to Vietnam

Most accurate provider	Gotogate 3 stars
Most trusted provider	Gotogate 3 stars
Round-trip from	$1,070 (Expedia)
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.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Ho Chi Minh City flights.

Search Deals

From Portland to Vietnam

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($235 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 1/27

6:17 am-11:20 pm

2 stops29h 03m

Ho Chi Minh City

Tue 2/3

8:00 am-12:20 am

2 stops28h 20m

$1,070

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Tue 1/27

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Tue 2/3

7:30 am-11:28 pm

3 stops27h 58m

$1,078

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 3/16

3:44 pm-10:55 pm

3 stops44h 11m

$1,200

PortlandHo Chi Minh City

PWM - SGN

PWMSGN

Portland

Mon 3/16

2:30 pm-7:40 am

2 stops30h 10m

$2,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

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 $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

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

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,092 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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 $1,078, Korean Air can have you in Vietnam from Portland, Maine in 27h 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, 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Vietnam

Boston to Narita flights

Boston to Haneda flights

Boston to Suvarnabhumi flights

Boston to New Delhi flights

Boston to Ho Chi Minh City flights

Boston to Mumbai flights

Boston to Hongqiao Intl flights

Boston to Incheon Intl flights

Boston to Hong Kong flights

Boston to Capital flights

Boston to Pu Dong flights

Boston to Taiwan Taoyuan Intl flights

Boston to Bangalore flights

Boston to Beijing Daxing Intl flights

Boston to Manila flights

Boston to Chennai flights

Boston to Kathmandu flights

Boston to Ahmedabad flights

Boston to Kuala Lumpur Intl flights

Boston to Hyderabad flights

Boston to Singapore flights

Boston to Sung Shan flights

Boston to Lahore flights

Boston to Denpasar flights

Boston to Gimpo Intl flights

Boston to Kansai Intl flights

Boston to Phuket City flights

Boston to Hanoi flights

Boston to Islamabad flights

Boston to Dhaka flights

Boston to Osaka Itami flights

Boston to Cochin flights

Boston to Don Mueang Intl flights

Boston to Cebu City flights

Boston to Fuzhou flights

Boston to Tbilisi flights

Boston to Da Nang flights

Boston to Malé flights

Boston to Guangzhou flights

Boston to Kobe flights

Boston to Vientiane flights

Boston to Kolkata flights

Boston to Yerevan flights

Boston to Chitose flights

Boston to Chubu Centrair Intl flights

Portland to Narita flights

Boston to Karachi flights

Boston to Soekarno-Hatta Intl flights

Portland to Haneda flights

Boston to Fukuoka flights

Top airline flying from Portland to Vietnam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$971	Average$1,320	FlexibilityNo cancel fee	On-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.

$1,070+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Vietnam with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Vietnam

Best flights from Portland to VietnamDiscover carefully curated flight deals from Portland to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Discover carefully curated flight deals from Portland to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

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 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Vietnam that are best for you.

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.

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?

Reviews of airlines servicing Vietnam

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.

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?

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

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

How can I find direct flights from Portland to Vietnam?

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

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

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.

Alternative routes for Portland to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portland to Vietnam

100% Free

Book with Flexibility

Travel Smart

Best flights from Portland to Vietnam
Discover carefully curated flight deals from Portland to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.