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Cheap flights from Oregon to Singapore from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Singapore departing on 1/18. 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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0 bags

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Cheap round-trip flights

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Air Canada Logo
7:00 pm - 7:00 amPDX-SIN
21h 00m1 stop
Air Canada Logo
8:50 am - 9:15 amSIN-PDX
16h 25m1 stop
$735Air Canada
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Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
9:50 am - 7:00 amPDX-SIN
30h 10m1 stop
Air Canada Logo
9:00 pm - 9:15 amSIN-PDX
28h 15m2 stops
$736Air Canada
Find Deal
Tue, Oct 28 - Tue, Nov 11
Multiple Airlines Logo
7:30 am - 9:35 amPDX-SIN
34h 05m2 stops
Multiple Airlines Logo
10:35 am - 12:18 amSIN-PDX
29h 43m2 stops
$741Multiple Airlines
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Sun, Nov 16 - Sun, Nov 23
Multiple Airlines Logo
1:00 pm - 7:00 amPDX-SIN
27h 00m2 stops
Multiple Airlines Logo
8:50 am - 2:45 pmSIN-PDX
21h 55m1 stop
$749Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
7:00 pm - 7:00 amPDX-SIN
20h 00m1 stop
Air Canada Logo
9:55 am - 6:30 pmSIN-PDX
24h 35m2 stops
$764Air Canada
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Wed, Feb 11 - Wed, Feb 25
Singapore Airlines Logo
10:52 am - 5:30 amPDX-SIN
26h 38m1 stop
Singapore Airlines Logo
9:15 am - 8:38 pmSIN-PDX
27h 23m1 stop
$839Singapore Airlines
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Wed, Feb 11 - Wed, Feb 25
Korean Air Logo
6:00 am - 12:10 amPDX-SIN
27h 10m2 stops
Korean Air Logo
1:35 am - 12:49 pmSIN-PDX
27h 14m2 stops
$866Korean Air
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Thu, Oct 30 - Wed, Nov 5
Singapore Airlines Logo
10:28 pm - 5:45 pmPDX-SIN
28h 17m1 stop
Singapore Airlines Logo
9:00 am - 12:38 pmSIN-PDX
19h 38m1 stop
$890Singapore Airlines
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Sat, Nov 1 - Sat, Nov 8
Korean Air Logo
6:30 am - 12:10 amPDX-SIN
26h 40m2 stops
Korean Air Logo
10:30 pm - 1:14 pmSIN-PDX
29h 44m2 stops
$891Korean Air
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Tue, Mar 10 - Thu, Mar 12
Japan Airlines Logo
7:18 am - 12:50 amPDX-SIN
25h 32m2 stops
Japan Airlines Logo
2:20 am - 3:13 pmSIN-PDX
28h 53m2 stops
$1,007Japan Airlines
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Wed, Feb 11 - Tue, Feb 24

Singapore Airlines flights from Oregon to Singapore

Our best Singapore Airlines deals on Oregon to Singapore flight tickets
Singapore Airlines
Feb 11
PDX10:52 amPortland
26h 38m
1 stop
SIN5:30 amSingapore Changi
Feb 25
SIN9:15 amSingapore Changi
27h 23m
1 stop
PDX8:38 pmPortland
$839
Find similar
Singapore Airlines
Nov 1
PDX10:28 pmPortland
28h 17m
1 stop
SIN5:45 pmSingapore Changi
Nov 8
SIN9:00 amSingapore Changi
19h 38m
1 stop
PDX12:38 pmPortland
$890
Find similar
Singapore Airlines
Nov 1
PDX10:28 pmPortland
28h 17m
1 stop
SIN5:45 pmSingapore Changi
Nov 16
SIN9:00 amSingapore Changi
17h 32m
1 stop
PDX10:32 amPortland
$963
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Qatar Airways flights from Oregon to Singapore

Our best Qatar Airways deals on Oregon to Singapore flight tickets
Qatar Airways
Nov 19
EUG7:00 amEugene
33h 45m
2 stops
SIN8:45 amSingapore Changi
Nov 22
SIN3:15 amSingapore Changi
34h 30m
2 stops
EUG9:45 pmEugene
$1,433
Find similar
Qatar Airways
Oct 9
PDX1:25 pmPortland
28h 35m
2 stops
SIN9:00 amSingapore Changi
Oct 17
SIN3:10 amSingapore Changi
42h 10m
2 stops
PDX6:20 amPortland
$1,450
Find similar
Qatar Airways
Oct 15
PDX1:25 pmPortland
35h 20m
2 stops
SIN3:45 pmSingapore Changi
Oct 17
SIN3:10 amSingapore Changi
42h 10m
2 stops
PDX6:20 amPortland
$1,465
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momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 2, 2025.
Use the filters below to find and compare flights from Oregon to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10/30

7:00 pm-7:00 am

1 stop21h 00m

Singapore Changi

Thu 11/6

8:50 am-9:15 am

1 stop16h 25m

$735

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10/28

9:50 am-7:00 am

1 stop30h 10m

Singapore Changi

Tue 11/11

9:00 pm-9:15 am

2 stops28h 15m

$736

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 11/16

7:30 am-9:35 am

2 stops34h 05m

Singapore Changi

Sun 11/23

10:35 am-12:18 am

2 stops29h 43m

$741

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10/30

1:00 pm-7:00 am

2 stops27h 00m

Singapore Changi

Thu 11/6

8:50 am-2:45 pm

1 stop21h 55m

$749

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/11

7:00 pm-7:00 am

1 stop20h 00m

Singapore Changi

Wed 2/25

9:55 am-6:30 pm

2 stops24h 35m

$764

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/11

10:52 am-5:30 am

1 stop26h 38m

Singapore Changi

Wed 2/25

9:15 am-8:38 pm

1 stop27h 23m

$839

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10/30

6:00 am-12:10 am

2 stops27h 10m

Singapore Changi

Wed 11/5

1:35 am-12:49 pm

2 stops27h 14m

$866

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 11/1

10:28 pm-5:45 pm

1 stop28h 17m

Singapore Changi

Sat 11/8

9:00 am-12:38 pm

1 stop19h 38m

$890

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 3/10

6:30 am-12:10 am

2 stops26h 40m

Singapore Changi

Thu 3/12

10:30 pm-1:14 pm

2 stops29h 44m

$891

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/11

7:18 am-12:50 am

2 stops25h 32m

Singapore Changi

Tue 2/24

2:20 am-3:13 pm

2 stops28h 53m

$1,007

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Singapore from

How to get the cheapest flight ticket from Oregon 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 Oregon, with most prices found around $753. If you aren’t able to travel to Singapore during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $880.

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Oregon 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 Oregon 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 Oregon 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 Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,022 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Oregon for as low as $774 on momondo.

Can stopping save me money on Oregon to Singapore flights?

You could potentially save up to 6% on your flight if you consider stops on a Oregon to Singapore flight.

Cheap Oregon to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Singapore

Direct flights

None
There are no direct flights from Oregon to Singapore. There are no popular flight routes from Oregon to Singapore.
Search flight deals

  • When did momondo last update prices for flights from Oregon to Singapore Changi Airport?

    Prices for flights from Oregon to Singapore Changi Airport refresh daily.

  • How many operators does momondo search for flights from Oregon to Singapore Changi Airport?

  • How old do you have to be to fly from Oregon to Singapore Changi Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Oregon to Singapore Changi Airport.

  • What documentation or ID do you need to fly to Singapore Changi Airport?

    The necessary travel and health documents for your Singapore Changi Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oregon to Singapore

Compare and see reviews for airlines that fly from Oregon to Singapore with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $694Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
DeltaPriceFrom $800Free CancellationRating
7.9
7,962 reviews
Search Delta flights
Korean AirPriceFrom $808Free CancellationRating
8.4
1,145 reviews
Search Korean Air flights
United AirlinesPriceFrom $868Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $891Free CancellationRating
8.1
1,373 reviews
Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Singapore?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oregon to Singapore for you.

Can I find flights from Oregon to Singapore with flexible booking policies on momondo?

momondo does allow users to show only those flights to Singapore from Oregon which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Oregon to Singapore?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oregon to Singapore.

I’m not ready to book a flight from Oregon to Singapore right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Oregon to Singapore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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