Cheap flights from Portland to Vietnam from $419
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Vietnam departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Portland to Vietnam
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Vietnam?
The month of September is, on average, the cheapest month to fly to Vietnam from Portland, with most prices found around $955. If you don’t want to visit Vietnam in September, then you should wait until August to fly from Portland, when ticket prices are also cheap, with an average price of $966.
What is the cheapest day to depart on your flight to Vietnam?
According to our data, Friday is the cheapest day to fly to Vietnam from Portland. The lowest ticket price found for a Friday departure recently was $1,106. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Vietnam on Tuesday is $1,285.
What is the cheapest time of day to depart on your flight to Vietnam?
Flying to Vietnam from Portland at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,136 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to Vietnam, so prices are often more expensive at around $1,246 per ticket.
How far in advance should I book a flight to Vietnam?
You are more likely to see cheaper flights to Vietnam from Portland when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $1,111 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Portland for as low as $911 on momondo.
What is the cheapest airline that flies from Portland to Vietnam?
Japan Airlines, United Airlines, and Korean Air are the most popular carriers operating from Portland to Vietnam
What airlines fly to Vietnam?
Korean Air, STARLUX Airlines and Delta are the top three most popular airlines that fly to Vietnam from Portland according to our data. Korean Air is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 12 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.
Cheap Portland to Vietnam flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Vietnam
When did momondo last update prices for flights from Portland Airport to Vietnam?
Prices for flights from Portland Airport to Vietnam are updated daily.
How many operators does momondo search for flights from Portland Airport to Vietnam?
As of June 2025, there are 12 operators available to choose from for flights from Portland Airport to Vietnam.
How old do you have to be to fly from Portland Airport to Vietnam?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Vietnam.
What documentation or ID do you need to fly to Vietnam?
The travel and health documents required for your trip to Vietnam can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Vietnam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Portland to Vietnam
Compare and see reviews for airlines that fly from Portland to Vietnam with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $804 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $845 | Free Cancellation | Rating 8.3 738 reviews | |||
| PriceFrom $870 | Free Cancellation | Rating 8.3 882 reviews | |||
| PriceFrom $872 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $892 | Free Cancellation | Rating 8.3 1,490 reviews | |||
| PriceFrom $901 | Free Cancellation | Rating 9.1 177 reviews | |||
| PriceFrom $903 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $910 | Free Cancellation | Rating 8.1 1,302 reviews | |||
| PriceFrom $911 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $937 | Free Cancellation | Rating 8.4 1,202 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Vietnam?
Finding the right flight to Vietnam from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Vietnam quick and easy, saving you time and money.
Can I find flights from Portland to Vietnam with flexible booking policies on momondo?
momondo does allow users to show only those flights to Vietnam from Portland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Portland to Vietnam?
momondo provides multiple filters to help you find the best flight to Vietnam from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Portland to Vietnam right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Vietnam from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.