To Singapore

Cheap Flights from Portland to Singapore

Browse current best options from Portland. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Portland

RatePunk searches hundreds of travel sites at once for deals on flights to Singapore

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Portland to Singapore

Explore current cheapest deals departing from Portland to Singapore

Round trip

Sort by: Cheapest

October 7 - October 15

Cheapest

Best

PDX - Singapore

$1,256

$874

Round trip

September 3 - September 10

PDX - Singapore

$1,154

$875

Round trip

September 28 - October 22

PDX - Singapore

$1,180

$882

Round trip

September 17 - September 24

PDX - Singapore

$1,179

$882

Round trip

October 5 - October 20

Best

PDX - Singapore

$1,243

$882

Round trip

November 17 - November 24

PDX - Singapore

$1,209

$884

Round trip

September 2 - September 9

PDX - Singapore

$1,154

$888

Round trip

September 8 - September 16

PDX - Singapore

$1,145

$888

Round trip

August 17 - September 1

Earliest

PDX - Singapore

$1,254

$891

Round trip

November 4 - November 9

PDX - Singapore

$1,229

$891

Round trip

Unlock all 500+ flight deals to Singapore and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Portland to Singapore

Most itineraries for flights from Portland to Singapore connect at least once, as 0% of recent fares were non-stop. For the majority of flights that do connect, the typical number of stopovers is 3, indicating a journey that often involves multiple layovers before reaching Singapore.

A typical journey from Portland to Singapore, including connections, takes about 47h 36m. This long-haul route covers a substantial distance of 13081 km, making it a significant international trip that requires careful planning for layovers and overall travel time.

When is the cheapest time to fly from Portland to Singapore? The data indicates that February is typically the most affordable month, with a median fare of $584. January also offers competitive prices, with a median fare of $648, followed by April at a median of $717. These months present the best opportunities for finding more economical flights.

For cheap flights from Portland to Singapore, fares typically range from $933–$1520, with a median of $1349. Right now, fares are above the typical level. Only 7% of recent fares were classified as a good price, suggesting that finding a low-cost flight on this route can be challenging. New deals show up several times a week, so setting up a price alert can be beneficial.

How much is a round trip from Portland to Singapore

Regular price: $1,103 - $1,867

Prices for flights from Portland to Singapore are currently below the regular range.

The regular price range for flights from Portland to Singapore is between $1103 and $1867. The current lowest deal is $874 with United Airlines, for travel from Oct 7-Oct 15.

now $874

Low $1,103

High $1,867

The cheapest time to fly from Portland to Singapore

The cheapest month to fly from Portland to Singapore is February, with a median price of $584. The most expensive month is December, with a median price of $1800. Prices are generally lower from January to October.

February

Cheapest

Flights from $584

December

Most Expensive

Flights from $1,800

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Portland to Singapore

United Airlines

Alaska Airlines, Inc.

Singapore Airlines

Air Canada

Last-minute flights going from Portland to Singapore

Tue, Jul 7

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,212

$1,076

One-way

Tue, Jul 28

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

United Airlines

$1,157

$891

One-way

Wed, Jul 29

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

United Airlines

$1,157

$891

One-way

Thu, Jul 30

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

United Airlines

$1,157

$891

One-way

Wed, Aug 5

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

United Airlines

$1,212

$891

One-way

Mon, Aug 10

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

United Airlines

$1,215

$891

One-way

Biggest price drops on these dates for flights from Portland to Singapore

16 nights

Dec 2 - Dec 18

$1,462 → $1,010

31%

17 nights

Dec 1 - Dec 18

$1,451 → $1,010

30%

8 nights

Dec 3 - Dec 11

$1,446 → $1,052

27%

8 nights

Oct 7 - Oct 15

$1,256 → $874

30%

Popular Airports to fly from Portland to Singapore

Portland - Singapore route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Portland to Singapore are above the typical level, with a median price of $1349.

📅 Best time to fly

February is historically the cheapest month to fly

Historically, February is the cheapest month to fly from Portland to Singapore, with a median price of $584.

⏱️ Flight duration

Flights are typically 47h 36m

The typical flight duration from Portland to Singapore is 47 hours and 36 minutes, including layovers.

✈️ Airlines & availability

Connecting flights are dominant for this route

Connecting flights are dominant for this route, with a median of 3 stopovers for deals found.

🏆 Airline highlight

United Airlines offers deals for this route

United Airlines has offered 21 deals for flights from Portland to Singapore, making it a frequent option.

🎯 Booking tip

Deals appear regularly for this route

Historically, deals for flights from Portland to Singapore appear regularly, about 0.2 deals per day.

Portland main airports to depart from

Portland International (PDX)

Cheapest

Portland International Airport offers flights to Singapore, providing a convenient departure point for your journey.

📍 ~10 km from city center (reachable by car or public transport)

💸 Flights from ~$874

Singapore main airports to arrive at

Singapore Changi (SIN)

Cheapest

Singapore Changi Airport is a major hub, offering extensive connections for your arrival in Singapore.

📍 ~17 km from Singapore city center (reachable by car, bus, train)

💸 Flights from ~$874

Airports nearby Singapore used as alternative

Senai International (JHB)

This airport is a useful alternative for regional Malaysia flights due to its land proximity to Singapore.

📍 ~35 km from Singapore (reachable by car or bus)

💸 Flights from ~$1151

Kuala Lumpur International (KUL)

Cheapest

This major regional hub offers an extensive global network and competitive pricing on long-haul routes.

📍 ~300 km from Singapore (reachable by flight, bus, or car)

💸 Flights from ~$978

Seletar Airport (XSP)

Located within Singapore, this airport offers fast check-in and is ideal for specific regional hops.

📍 ~10 km from Singapore (reachable by car)

💸 Flights from ~$1413

Hang Nadim (BTH)

This airport is a viable alternative for domestic Indonesian travel, accessible via frequent ferry services.

📍 ~35 km from Singapore (reachable by ferry)

💸 Flights from ~$1232

Sultan Abdul Aziz Shah (SZB)

This airport is closer to Kuala Lumpur city center and has direct turboprop links from Singapore.

📍 ~320 km from Singapore (reachable by flight, bus, or car)

💸 Flights from ~$1156

Business & First Class Flight Deals to Singapore

78% AI deal score

$5,432

From PDX

Elite

Sep 30

Singapore, Singapore

78% AI deal score

$5,758

$5,736

Save $22

From PDX

Elite

Sep 24

Singapore, Singapore

78% AI deal score

$5,847

From PDX

Elite

Sep 23

Singapore, Singapore

78% AI deal score

$5,875

From PDX

Singapore, Singapore

69% AI deal score

$16,487

Frequently Asked Questions About Flights to Singapore

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can also help you discover better deals. Setting up price alerts may notify you when fares drop for your desired route.

Booking flights in advance often provides more options and potentially lower prices. However, last-minute deals can sometimes appear, so it's wise to monitor fare trends. The ideal booking time can vary, but planning ahead usually offers an advantage.

Comparing nearby airports can sometimes reveal more affordable flight options or different schedules. While it might add to your ground travel, the potential savings could be significant. Always factor in the total cost and convenience when considering alternative airports.

Related routes

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