Cheap flights from Portland to Singapore from $458
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 Singapore departing on 9/18. 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 Singapore
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 Singapore?
The month of September is, on average, the cheapest month to fly to Singapore from Portland, with most prices found around $820. If you aren’t able to travel to Singapore during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $919.
What is the cheapest day to depart on your flight to Singapore?
The cheapest day to depart from Portland to Singapore is on a Tuesday when prices can be found for as low as $1,256. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,673.
What is the cheapest time of day to depart on your flight to Singapore?
At noon is the cheapest time of day to fly from Portland to Singapore when you can find flight prices for as low as $1,121. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,334 on average. Flights to Singapore from Portland in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Singapore?
You are more likely to see cheaper flights to Singapore from Portland when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,052 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Portland for as low as $933 on momondo.
What is the cheapest airline that flies from Portland to Singapore?
Air Canada, Singapore Airlines, and United Airlines are the most popular carriers operating from Portland to Singapore
What airlines fly to Singapore?
United Airlines, Air Canada and Singapore Airlines are the top three most popular airlines that fly to Singapore from Portland according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 5 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.
Cheap Portland to Singapore flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Singapore
When did momondo last update prices for flights from Portland Airport to Singapore?
Prices for flights from Portland Airport to Singapore were last updated today.
How many operators does momondo search for flights from Portland Airport to Singapore?
As of June 2025, there are 5 operators available to choose from for flights from Portland Airport to Singapore.
How old do you have to be to fly from Portland Airport to Singapore?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Singapore.
What documentation or ID do you need to fly to Singapore?
The travel and health documents required for your trip to Singapore 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 Singapore. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Portland to Singapore
Compare and see reviews for airlines that fly from Portland to Singapore with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $694 | Free Cancellation | Rating 7.1 9,554 reviews | |||
| PriceFrom $799 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $800 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $930 | Free Cancellation | Rating 8.4 1,090 reviews | |||
| PriceFrom $978 | Free Cancellation | Rating 8.1 1,308 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Singapore?
It is quick and easy to find Portland to Singapore flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Singapore that suits you.
Can I find flights from Portland to Singapore with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Portland to Singapore flights to just show those with flexible booking policies.
How can momondo help me find flights from Portland to Singapore?
Once you have performed a search for Portland to Singapore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Portland to Singapore right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Portland to Singapore flights. All you need is a valid email address and we will do the rest; it is that quick and easy.