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Cheap flights from Oregon to Singapore from $313

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 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oregon to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
2:30 pm - 5:15 am
PDX
-
SIN
23h 45m
1 stop
Singapore Airlines Logo
9:00 am - 12:22 pm
SIN
-
PDX
18h 22m
1 stop
$920Singapore Airlines
Wed, Oct 7 - Thu, Oct 22
Singapore Airlines Logo
5:40 pm - 7:40 am
PDX
-
SIN
23h 00m
1 stop
Singapore Airlines Logo
9:15 am - 1:50 pm
SIN
-
PDX
19h 35m
1 stop
$940Singapore Airlines
Tue, Oct 6 - Tue, Oct 27
Multiple Airlines Logo
8:19 am - 11:35 pm
PDX
-
SIN
24h 16m
2 stops
Multiple Airlines Logo
2:30 pm - 4:50 pm
SIN
-
PDX
41h 20m
2 stops
$941Multiple Airlines
Thu, Sep 10 - Thu, Sep 24
Singapore Airlines Logo
2:50 pm - 7:40 am
PDX
-
SIN
25h 50m
1 stop
Singapore Airlines Logo
9:00 am - 7:50 pm
SIN
-
PDX
25h 50m
1 stop
$965Singapore Airlines
Thu, Sep 10 - Thu, Sep 24
Multiple Airlines Logo
5:48 pm - 5:35 pm
EUG
-
SIN
32h 47m
1 stop
Multiple Airlines Logo
9:00 am - 12:23 am
SIN
-
EUG
30h 23m
1 stop
$982Multiple Airlines
Mon, Oct 12 - Sun, Oct 18
Singapore Airlines Logo
2:50 pm - 7:40 am
PDX
-
SIN
25h 50m
1 stop
Singapore Airlines Logo
9:15 am - 1:50 pm
SIN
-
PDX
19h 35m
1 stop
$985Singapore Airlines
Thu, Oct 1 - Sat, Oct 10
Singapore Airlines Logo
7:00 am - 12:55 am
PDX
-
SIN
26h 55m
2 stops
Singapore Airlines Logo
9:15 am - 8:48 pm
SIN
-
PDX
26h 33m
1 stop
$997Singapore Airlines
Wed, Oct 14 - Wed, Oct 21
Qatar Airways Logo
10:35 am - 9:20 am
PDX
-
SIN
31h 45m
2 stops
Qatar Airways Logo
1:30 am - 6:36 pm
SIN
-
PDX
32h 06m
2 stops
$1,001Qatar Airways
Mon, May 4 - Sun, May 10
Qatar Airways Logo
1:30 pm - 8:50 am
PDX
-
SIN
28h 20m
2 stops
Qatar Airways Logo
7:40 pm - 10:44 pm
SIN
-
PDX
42h 04m
2 stops
$1,027Qatar Airways
Wed, Oct 14 - Wed, Oct 21
Qatar Airways Logo
1:30 pm - 3:45 pm
PDX
-
SIN
35h 15m
2 stops
Qatar Airways Logo
3:15 am - 4:37 pm
SIN
-
PDX
28h 22m
2 stops
$1,047Qatar Airways
Tue, Oct 6 - Mon, Oct 26

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Singapore Airlines flights from Oregon to Singapore

Our best Singapore Airlines deals on Oregon to Singapore flight tickets
Singapore Airlines
Oct 7
PDX2:30 pmPortland
23h 45m
1 stop
SIN5:15 amSingapore Changi
Oct 22
SIN9:00 amSingapore Changi
18h 22m
1 stop
PDX12:22 pmPortland
$920
Singapore Airlines
Oct 6
PDX5:40 pmPortland
23h 00m
1 stop
SIN7:40 amSingapore Changi
Oct 27
SIN9:15 amSingapore Changi
19h 35m
1 stop
PDX1:50 pmPortland
$940
Singapore Airlines
Sep 10
PDX2:50 pmPortland
25h 50m
1 stop
SIN7:40 amSingapore Changi
Sep 24
SIN9:00 amSingapore Changi
25h 50m
1 stop
PDX7:50 pmPortland
$965

Qatar Airways flights from Oregon to Singapore

Our best Qatar Airways deals on Oregon to Singapore flight tickets
Qatar Airways
May 4
PDX10:35 amPortland
31h 45m
2 stops
SIN9:20 amSingapore Changi
May 10
SIN1:30 amSingapore Changi
32h 06m
2 stops
PDX6:36 pmPortland
$1,001
Qatar Airways
Oct 14
PDX1:30 pmPortland
28h 20m
2 stops
SIN8:50 amSingapore Changi
Oct 21
SIN7:40 pmSingapore Changi
42h 04m
2 stops
PDX10:44 pmPortland
$1,027
Qatar Airways
Apr 22
PDX8:45 amPortland
40h 30m
2 stops
SIN4:15 pmSingapore Changi
May 1
SIN1:30 amSingapore Changi
32h 06m
2 stops
PDX6:36 pmPortland
$1,041

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 April 20, 2026.
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

Cheapest round-trip
Quickest round-trip

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 10/7

2:30 pm-5:15 am

1 stop23h 45m

Singapore Changi

Thu 10/22

9:00 am-12:22 pm

1 stop18h 22m

$920

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10/6

5:40 pm-7:40 am

1 stop23h 00m

Singapore Changi

Tue 10/27

9:15 am-1:50 pm

1 stop19h 35m

$940

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/10

8:19 am-11:35 pm

2 stops24h 16m

Singapore Changi

Thu 9/24

2:30 pm-4:50 pm

2 stops41h 20m

$941

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/10

2:50 pm-7:40 am

1 stop25h 50m

Singapore Changi

Thu 9/24

9:00 am-7:50 pm

1 stop25h 50m

$965

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Mon 10/12

5:48 pm-5:35 pm

1 stop32h 47m

Singapore Changi

Sun 10/18

9:00 am-12:23 am

1 stop30h 23m

$982

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10/1

2:50 pm-7:40 am

1 stop25h 50m

Singapore Changi

Sat 10/10

9:15 am-1:50 pm

1 stop19h 35m

$985

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 10/14

7:00 am-12:55 am

2 stops26h 55m

Singapore Changi

Wed 10/21

9:15 am-8:48 pm

1 stop26h 33m

$997

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 5/4

10:35 am-9:20 am

2 stops31h 45m

Singapore Changi

Sun 5/10

1:30 am-6:36 pm

2 stops32h 06m

$1,001

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 10/14

1:30 pm-8:50 am

2 stops28h 20m

Singapore Changi

Wed 10/21

7:40 pm-10:44 pm

2 stops42h 04m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10/6

1:30 pm-3:45 pm

2 stops35h 15m

Singapore Changi

Mon 10/26

3:15 am-4:37 pm

2 stops28h 22m

$1,047

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 May is, on average, the cheapest month to fly to Singapore from Oregon, with most prices found around $858. If you aren’t able to travel to Singapore during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $874.

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 $1,042 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 $778 on momondo.

Can stopping save me money on Oregon to Singapore flights?

You could potentially save up to 3% 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 16m

Direct flights

None
The fastest flight from Oregon to Singapore takes 20h 16m
There are no direct flights from Oregon to Singapore. There are no popular flight routes from Oregon to Singapore.
Search flight deals

Frequently asked questions about flying from Oregon to Singapore

  • 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
10,943 reviews
Search Air Canada flights
Korean AirPriceFrom $786Free CancellationRating
8.4
1,212 reviews
Search Korean Air flights
Singapore AirlinesPriceFrom $837Free CancellationRating
8.2
1,499 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $1,012Free CancellationRating
7.4
9,607 reviews
Search United 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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Air Canada
Singapore Airlines
United Airlines
Korean Air