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Cheap flights from Oregon to Singapore from $364

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 4/23. 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

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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.
Singapore Airlines Logo
5:49 pm - 7:50 am
PDX
-
SIN
23h 01m
1 stop
Singapore Airlines Logo
8:45 pm - 9:38 am
SIN
-
PDX
27h 53m
1 stop
$846Singapore Airlines
Mon, Apr 27 - Mon, May 4
Singapore Airlines Logo
2:37 pm - 5:15 am
PDX
-
SIN
23h 38m
1 stop
Singapore Airlines Logo
9:15 am - 1:47 pm
SIN
-
PDX
19h 32m
1 stop
$883Singapore Airlines
Wed, Apr 15 - Tue, Apr 28
Singapore Airlines Logo
7:00 am - 7:10 pm
PDX
-
SIN
21h 10m
1 stop
Singapore Airlines Logo
9:00 am - 12:52 pm
SIN
-
PDX
18h 52m
1 stop
$899Singapore Airlines
Wed, Apr 22 - Sat, May 2
Multiple Airlines Logo
5:14 pm - 1:50 pm
PDX
-
SIN
29h 36m
2 stops
Multiple Airlines Logo
3:15 pm - 11:50 am
SIN
-
PDX
35h 35m
2 stops
$918Multiple Airlines
Sun, Apr 12 - Sun, Apr 19
Cathay Pacific Logo
6:00 am - 12:45 am
PDX
-
SIN
27h 45m
2 stops
Cathay Pacific Logo
1:25 pm - 9:35 pm
SIN
-
PDX
23h 10m
2 stops
$922Cathay Pacific
Wed, Apr 15 - Tue, Apr 28
Cathay Pacific Logo
9:30 pm - 5:30 am
PDX
-
SIN
41h 00m
2 stops
Cathay Pacific Logo
7:20 am - 4:30 pm
SIN
-
PDX
24h 10m
2 stops
$929Cathay Pacific
Mon, Apr 6 - Wed, Apr 15
Multiple Airlines Logo
9:30 pm - 12:40 pm
PDX
-
SIN
24h 10m
2 stops
Multiple Airlines Logo
2:00 pm - 9:46 am
SIN
-
PDX
34h 46m
2 stops
$933Multiple Airlines
Sat, Aug 15 - Mon, Aug 31
STARLUX Airlines Logo
5:30 pm - 12:40 pm
PDX
-
SIN
28h 10m
2 stops
STARLUX Airlines Logo
2:00 pm - 12:10 am
SIN
-
PDX
25h 10m
2 stops
$942STARLUX Airlines
Sat, Aug 15 - Mon, Aug 31
United Airlines Logo
6:55 pm - 8:15 pm
BOI
-
SIN
35h 20m
1 stop
United Airlines Logo
10:20 pm - 9:22 pm
SIN
-
BOI
37h 02m
2 stops
$1,130United Airlines
Sat, Mar 21 - Sat, Mar 28
United Airlines Logo
7:07 am - 8:15 pm
BOI
-
SIN
47h 08m
2 stops
United Airlines Logo
10:10 am - 9:54 am
SIN
-
BOI
37h 44m
2 stops
$1,190United Airlines
Sat, Mar 21 - Sat, Mar 28

Singapore Airlines flights from Oregon to Singapore

Our best Singapore Airlines deals on Oregon to Singapore flight tickets
Singapore Airlines
Apr 27
PDX5:49 pmPortland
23h 01m
1 stop
SIN7:50 amSingapore Changi
May 4
SIN8:45 pmSingapore Changi
27h 53m
1 stop
PDX9:38 amPortland
$846
Singapore Airlines
Apr 15
PDX2:37 pmPortland
23h 38m
1 stop
SIN5:15 amSingapore Changi
Apr 28
SIN9:15 amSingapore Changi
19h 32m
1 stop
PDX1:47 pmPortland
$883
Singapore Airlines
Apr 22
PDX7:00 amPortland
21h 10m
1 stop
SIN7:10 pmSingapore Changi
May 2
SIN9:00 amSingapore Changi
18h 52m
1 stop
PDX12:52 pmPortland
$899

United Airlines flights from Oregon to Singapore

Our best United Airlines deals on Oregon to Singapore flight tickets
United Airlines
Apr 13
PDX7:14 pmPortland
20h 31m
1 stop
SIN6:45 amSingapore Changi
Apr 16
SIN9:00 amSingapore Changi
20h 31m
1 stop
PDX2:31 pmPortland
$1,055
United Airlines
Mar 8
PDX1:39 pmPortland
26h 21m
1 stop
SIN7:00 amSingapore Changi
Mar 18
SIN10:10 amSingapore Changi
26h 00m
2 stops
PDX9:10 pmPortland
$1,059
United Airlines
Aug 15
PDX5:30 amPortland
22h 05m
1 stop
SIN6:35 pmSingapore Changi
Aug 21
SIN6:15 amSingapore Changi
33h 38m
2 stops
PDX12:53 amPortland
$1,067

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 February 28, 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

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/27

5:49 pm-7:50 am

1 stop23h 01m

Singapore Changi

Mon 5/4

8:45 pm-9:38 am

1 stop27h 53m

$846

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4/15

2:37 pm-5:15 am

1 stop23h 38m

Singapore Changi

Tue 4/28

9:15 am-1:47 pm

1 stop19h 32m

$883

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4/22

7:00 am-7:10 pm

1 stop21h 10m

Singapore Changi

Sat 5/2

9:00 am-12:52 pm

1 stop18h 52m

$899

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 4/12

5:14 pm-1:50 pm

2 stops29h 36m

Singapore Changi

Sun 4/19

3:15 pm-11:50 am

2 stops35h 35m

$918

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4/15

6:00 am-12:45 am

2 stops27h 45m

Singapore Changi

Tue 4/28

1:25 pm-9:35 pm

2 stops23h 10m

$922

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/6

9:30 pm-5:30 am

2 stops41h 00m

Singapore Changi

Wed 4/15

7:20 am-4:30 pm

2 stops24h 10m

$929

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 8/15

9:30 pm-12:40 pm

2 stops24h 10m

Singapore Changi

Mon 8/31

2:00 pm-9:46 am

2 stops34h 46m

$933

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 8/15

5:30 pm-12:40 pm

2 stops28h 10m

Singapore Changi

Mon 8/31

2:00 pm-12:10 am

2 stops25h 10m

$942

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sat 3/21

6:55 pm-8:15 pm

1 stop35h 20m

Singapore Changi

Sat 3/28

10:20 pm-9:22 pm

2 stops37h 02m

$1,130

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sat 3/21

7:07 am-8:15 pm

2 stops47h 08m

Singapore Changi

Sat 3/28

10:10 am-9:54 am

2 stops37h 44m

$1,190

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 $837.

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 $1,013 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 25% 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 05m

Direct flights

None
The fastest flight from Oregon to Singapore takes 20h 05m
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?

    Prices for flights from Oregon to Singapore refresh daily.

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

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

    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.

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

    The travel and health documents you'll need for your trip to Singapore may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore. It is always advisable to seek 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
10,757 reviews
Search Air Canada flights
Korean AirPriceFrom $792Free CancellationRating
8.4
1,195 reviews
Search Korean Air flights
DeltaPriceFrom $800Free CancellationRating
7.9
8,244 reviews
Search Delta flights
Singapore AirlinesPriceFrom $837Free CancellationRating
8.2
1,465 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $870Free CancellationRating
7.4
9,366 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Singapore from Oregon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Singapore quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Singapore from Oregon with this policy.

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 offers price alerts on flights to Singapore from Oregon. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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