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Cheap flights from Oregon to Singapore from $372

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 3/6. 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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Find the cheapest flights from Oregon to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:50 am - 7:05 amPDX-SIN
30h 15m1 stop
Air Canada Logo
9:10 am - 6:30 pmSIN-PDX
24h 20m1 stop
$768Air Canada
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Tue, Apr 14 - Tue, Apr 28
Air Canada Logo
9:50 am - 7:05 amPDX-SIN
30h 15m1 stop
Air Canada Logo
8:50 pm - 9:15 amSIN-PDX
27h 25m2 stops
$769Air Canada
Find Deal
Tue, Apr 14 - Tue, Apr 28
Singapore Airlines Logo
9:48 pm - 7:05 pmPDX-SIN
29h 17m1 stop
Singapore Airlines Logo
9:00 am - 12:44 pmSIN-PDX
18h 44m1 stop
$770Singapore Airlines
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Tue, Mar 3 - Thu, Mar 12
Air Canada Logo
9:50 am - 12:45 amPDX-SIN
23h 55m2 stops
Air Canada Logo
8:50 pm - 9:15 amSIN-PDX
27h 25m2 stops
$781Air Canada
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Tue, Apr 14 - Tue, Apr 28
Air Canada Logo
9:50 am - 7:05 amPDX-SIN
30h 15m1 stop
Air Canada Logo
9:10 am - 8:33 pmSIN-PDX
50h 23m2 stops
$819Air Canada
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Thu, Apr 16 - Tue, Apr 28
Multiple Airlines Logo
8:30 am - 7:00 amPDX-SIN
30h 30m2 stops
Multiple Airlines Logo
9:00 pm - 6:30 pmSIN-PDX
37h 30m2 stops
$833Multiple Airlines
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Tue, Jan 20 - Sun, Feb 1
United Airlines Logo
2:20 pm - 8:00 amBOI-SIN
26h 40m1 stop
United Airlines Logo
10:10 am - 4:10 pmSIN-BOI
21h 00m1 stop
$969United Airlines
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Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
10:48 am - 8:00 amBOI-SIN
30h 12m1 stop
United Airlines Logo
10:10 am - 6:07 pmSIN-BOI
22h 57m2 stops
$974United Airlines
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Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
12:15 pm - 5:40 amEUG-SIN
49h 25m2 stops
Multiple Airlines Logo
8:15 pm - 11:19 amSIN-EUG
55h 04m2 stops
$1,050Multiple Airlines
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Sun, Feb 1 - Fri, Feb 13
Japan Airlines Logo
10:00 am - 12:50 amBOI-SIN
23h 50m2 stops
Japan Airlines Logo
8:15 am - 3:10 pmSIN-BOI
21h 55m2 stops
$1,056Japan Airlines
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Thu, Jan 22 - Mon, Jan 26

Air Canada flights from Oregon to Singapore

Our best Air Canada deals on Oregon to Singapore flight tickets
Air Canada
Apr 14
PDX9:50 amPortland
30h 15m
1 stop
SIN7:05 amSingapore Changi
Apr 28
SIN9:10 amSingapore Changi
24h 20m
1 stop
PDX6:30 pmPortland
$768
Find similar
Air Canada
Apr 14
PDX9:50 amPortland
30h 15m
1 stop
SIN7:05 amSingapore Changi
Apr 28
SIN8:50 pmSingapore Changi
27h 25m
2 stops
PDX9:15 amPortland
$769
Find similar
Air Canada
Apr 14
PDX9:50 amPortland
23h 55m
2 stops
SIN12:45 amSingapore Changi
Apr 28
SIN8:50 pmSingapore Changi
27h 25m
2 stops
PDX9:15 amPortland
$781
Find similar

China Eastern flights from Oregon to Singapore

Our best China Eastern deals on Oregon to Singapore flight tickets
China Eastern
Jan 13
PDX6:30 amPortland
30h 55m
2 stops
SIN5:25 amSingapore Changi
Jan 26
SIN12:25 amSingapore Changi
32h 00m
2 stops
PDX4:25 pmPortland
$894
Find similar
China Eastern
Mar 25
PDX6:15 amPortland
32h 10m
2 stops
SIN5:25 amSingapore Changi
Apr 5
SIN11:10 pmSingapore Changi
32h 33m
2 stops
PDX4:43 pmPortland
$1,001
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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 November 26, 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

Tue 4/14

9:50 am-7:05 am

1 stop30h 15m

Singapore Changi

Tue 4/28

9:10 am-6:30 pm

1 stop24h 20m

$768

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

9:50 am-7:05 am

1 stop30h 15m

Singapore Changi

Tue 4/28

8:50 pm-9:15 am

2 stops27h 25m

$769

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 3/3

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

Thu 3/12

9:00 am-12:44 pm

1 stop18h 44m

$770

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

9:50 am-12:45 am

2 stops23h 55m

Singapore Changi

Tue 4/28

8:50 pm-9:15 am

2 stops27h 25m

$781

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 4/16

9:50 am-7:05 am

1 stop30h 15m

Singapore Changi

Tue 4/28

9:10 am-8:33 pm

2 stops50h 23m

$819

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 1/20

8:30 am-7:00 am

2 stops30h 30m

Singapore Changi

Sun 2/1

9:00 pm-6:30 pm

2 stops37h 30m

$833

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 1/22

2:20 pm-8:00 am

1 stop26h 40m

Singapore Changi

Mon 1/26

10:10 am-4:10 pm

1 stop21h 00m

$969

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 1/22

10:48 am-8:00 am

1 stop30h 12m

Singapore Changi

Mon 1/26

10:10 am-6:07 pm

2 stops22h 57m

$974

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Sun 2/1

12:15 pm-5:40 am

2 stops49h 25m

Singapore Changi

Fri 2/13

8:15 pm-11:19 am

2 stops55h 04m

$1,050

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 1/22

10:00 am-12:50 am

2 stops23h 50m

Singapore Changi

Mon 1/26

8:15 am-3:10 pm

2 stops21h 55m

$1,056

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 $749. If you aren’t able to travel to Singapore during the month of September, then flying in March 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 $995 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 $730 on momondo.

Can stopping save me money on Oregon to Singapore flights?

You could potentially save up to 16% 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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Oregon to Singapore takes 20h 45m
There are no direct flights from Oregon to Singapore. There are no popular flight routes from Oregon to Singapore.
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  • 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
10,481 reviews
Search Air Canada flights
Korean AirPriceFrom $792Free CancellationRating
8.4
1,172 reviews
Search Korean Air flights
DeltaPriceFrom $800Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $868Free CancellationRating
7.4
9,049 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $873Free CancellationRating
8.1
1,410 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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Air Canada
United Airlines
Singapore Airlines
Korean Air
Delta