Are direct flights from Portland to Singapore always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, they are not always the cheapest option, as flights with connections can sometimes be more affordable. Consider your priorities for cost versus travel time.

Can flexible travel dates help on Portland to Singapore flights?

Yes, being flexible with your travel dates can often lead to finding cheaper flights. Prices for airfare can vary significantly depending on the day of the week or season. Adjusting your departure or return by a few days may result in savings.

What extra costs should I check before booking Portland to Singapore flights?

Always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes or making changes to your booking. Factor these into your total travel budget.

Flights From Portland

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 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Portland to Singapore

Explore current cheapest deals departing from Portland to Singapore

2026-09-02 – 2026-09-09
PDX - Singapore
85% AI deal score
$1,132
$968
Round trip
2026-07-21 – 2026-07-28
PDX - Singapore
90% AI deal score
$1,321
$975
Round trip
2026-11-01 – 2026-11-18
PDX - Singapore
86% AI deal score
$1,153
$993
Round trip
2026-09-05 – 2026-09-11
PDX - Singapore
82% AI deal score
$1,133
$1,008
Round trip
2026-09-22 – 2026-09-29
PDX - Singapore
84% AI deal score
$1,154
$1,008
Round trip
2027-01-05 – 2027-01-26
PDX - Singapore
91% AI deal score
$1,236
$1,018
Round trip
2026-09-10 – 2026-09-19
PDX - Singapore
79% AI deal score
$1,099
$1,035
Round trip
2026-09-05 – 2026-09-13
PDX - Singapore
80% AI deal score
$1,101
$1,035
Round trip
2026-10-01 – 2026-10-17
PDX - Singapore
82% AI deal score
$1,144
$1,038
Round trip
2026-08-20 – 2026-08-27
PDX - Singapore
89% AI deal score
$1,293
$1,039
Round trip

Portland to Singapore: Overview

Insights for flights from Portland to Singapore

Most itineraries for flights from Portland to Singapore connect at least once. Right now, fares to Singapore are significantly below the typical level. Only 7% of recent fares from Portland to Singapore were classified as a good price, indicating that finding particularly low prices can be challenging. New deals show up several times a week, so consistent monitoring can be beneficial.

If you are looking for cheap flights from Portland to Singapore, the cheapest months to fly are February, with a median fare of $584, followed by January at $648, and April at $717. These months offer the most favorable pricing compared to other times of the year.

A typical journey from Portland to Singapore takes approximately 47h 36m, including connections. This duration reflects the long-haul nature of the route, which covers a substantial distance and often involves multiple layovers.

The route from Portland to Singapore spans a considerable 13,081 km, classifying it as a long-haul journey. This significant distance means travelers should expect extended travel times and typically multiple connections.

How much is a round trip from Portland to Singapore

Regular price: $1,067 - $1,541

Prices are currently below the regular range.

The regular price range for flights from Portland to Singapore is $1067-$1541. The current lowest deal is $981 with Korean Air for travel from Nov 18-Nov 25.

now $981

Low $1,067

High $1,541

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

Alaska Airlines, Inc.

United Airlines

Air Canada

Singapore Airlines

Last-minute flights going from Portland to Singapore

Thu, Aug 6

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,251

$942

One-way

Mon, Aug 10

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,287

$1,057

One-way

Tue, Aug 11

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,321

$976

One-way

Thu, Aug 13

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,262

$994

One-way

Sat, Aug 15

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,237

$1,101

One-way

Sat, Aug 15

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,312

$1,132

One-way

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

7 nights

Aug 11 - Aug 18

$1,321 → $976

26%

6 nights

Aug 23 - Aug 29

$1,297 → $972

25%

19 nights

Aug 6 - Aug 25

$1,251 → $942

25%

12 nights

Jan 5 - Jan 17

$1,232 → $960

22%

Popular Airports to fly from Portland to Singapore

Portland - Singapore route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Portland to Singapore are below the typical level, with deals around $981.

📅 Best time to fly

February is historically cheapest

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

⏱️ Flight duration

Long-haul flights, 47h 36m median

Flights from Portland to Singapore are long-haul, with a median duration of 47h 36m.

✈️ Airlines & availability

Connecting flights are typical

Connecting flights are typical for this route, with a median of 2 stopovers.

🏆 Airline highlight

Korean Air offers a recent deal

Korean Air recently offered a deal for $981 from Portland to Singapore.

🎯 Booking tip

Deals appear regularly

Deals for flights from Portland to Singapore appear regularly, so check frequently.

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

Business & First Class Flight Deals to Singapore

83% AI deal score

$2,296

$2,011

Save $285

Frequently Asked Questions About Flights to Singapore

To find cheaper flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch fare drops.

Booking in advance is often recommended for international flights to secure better prices. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday bookings sometimes offer slight advantages.

Comparing nearby airports can sometimes lead to more affordable flight options or different schedules. While it may add to ground travel time, the potential savings could be significant. Always factor in the total cost and convenience.

Related routes

More routes from Portland

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Flights to Singapore from other cities

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Portland to Singapore: Overview

Insights for flights from Portland to Singapore

How much is a round trip from Portland to Singapore

Regular price: $1,067 - $1,541

Prices are currently below the regular range.

The regular price range for flights from Portland to Singapore is $1067-$1541. The current lowest deal is $981 with Korean Air for travel from Nov 18-Nov 25.

now $981

Low $1,067

High $1,541

The cheapest time to fly from Portland to Singapore

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

Alaska Airlines, Inc.

United Airlines

Air Canada

Singapore Airlines

Last-minute flights going from Portland to Singapore

Thu, Aug 6

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,251

$942

One-way

Mon, Aug 10

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,287

$1,057

One-way

Tue, Aug 11

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,321

$976

One-way

Thu, Aug 13

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,262

$994

One-way

Sat, Aug 15

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,237

$1,101

One-way

Sat, Aug 15

⌛ Last-Minute

PDX - Singapore

Portland (PDX) - Singapore (SIN)

Air Canada

$1,312

$1,132

One-way

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

7 nights

Aug 11 - Aug 18

$1,321 → $976

26%

6 nights

Aug 23 - Aug 29

$1,297 → $972

25%

19 nights

Aug 6 - Aug 25

$1,251 → $942

25%

12 nights

Jan 5 - Jan 17

$1,232 → $960

22%

Popular Airports to fly from Portland to Singapore