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$426+ Cheap flights from Oregon to Singapore

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
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Cheap flight deals from Oregon to Singapore

Cheapest flights from Oregon to Singapore
Explore the most affordable flight options available from Oregon to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2026.

This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Tue 9/229:15 am
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 3/25$799
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Sat 9/199:15 am
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 3/25$880
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Sat 10/109:15 am
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 3/24$883
This oojo deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Mon 8/318:45 pm
SIN
-
PDX
1 stop27h 40m
Singapore Airlines
Deal found 3/22$891
This oojo deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Fri 9/119:00 am
SIN
-
PDX
1 stop22h 37m
Singapore Airlines
Deal found 3/21$957
This FlightHub deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:54 am
PDX
-
SIN
2 stops25h 26m
ANA
Fri 9/116:15 am
SIN
-
PDX
2 stops23h 32m
ANA
Deal found 3/21$973
This Gurufare deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:35 am
PDX
-
SIN
2 stops25h 10m
ANA
Fri 9/1112:50 am
SIN
-
PDX
2 stops28h 57m
ANA
Deal found 3/22$988
This KAYAK deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:12 pm
BOI
-
SIN
1 stop31h 33m
Multiple Airlines
Wed 11/189:15 am
SIN
-
BOI
1 stop22h 49m
Multiple Airlines
Deal found 3/22$989
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:40 pm
PDX
-
SIN
1 stop20h 35m
Singapore Airlines
Mon 8/319:15 am
SIN
-
PDX
1 stop22h 35m
Singapore Airlines
Deal found 3/24$995
This Gurufare deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:15 am
BOI
-
SIN
2 stops31h 10m
China Eastern
Tue 11/1712:25 am
SIN
-
BOI
2 stops29h 39m
China Eastern
Deal found 3/22$1,030
This Trip.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:11 pm
BOI
-
SIN
1 stop27h 29m
Multiple Airlines
Sat 10/319:15 am
SIN
-
BOI
1 stop21h 49m
Multiple Airlines
Deal found 3/20$1,079
This oojo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:00 pm
BOI
-
SIN
2 stops33h 35m
China Airlines
Sat 10/312:25 pm
SIN
-
BOI
2 stops41h 39m
China Airlines
Deal found 3/20$1,134

Find flight deals from Oregon to Singapore

Keep the following information in mind while searching for Oregon to Singapore flight deals. Data was last updated March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$799
(oojo)

One-way from

$426
(oojo)

Popular in

December

Cheapest in

May

Average price

$978
Provider with most accurate pricing for Portland-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Singapore Changi flights.
Search Deals
From Oregon to Singapore
Search Deals
One-way flight from Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 25, 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

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4/22

1:52 pm-8:50 am

2 stops27h 58m

Singapore Changi

Tue 4/28

3:15 am-4:51 pm

2 stops28h 36m

$1,012

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/10

6:30 am-3:45 pm

2 stops42h 15m

Singapore Changi

Mon 9/14

4:55 pm-4:10 pm

2 stops38h 15m

$1,157

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Thu 9/17

1:30 pm-8:50 am

2 stops28h 20m

Singapore Changi

Sun 9/20

3:15 am-12:23 am

2 stops36h 08m

$1,165

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 5/3

1:41 pm-6:45 am

1 stop26h 04m

Singapore Changi

Sat 5/23

8:35 pm-12:50 am

1 stop19h 15m

$1,204

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 5/18

5:30 am-6:35 pm

1 stop22h 05m

Singapore Changi

Tue 6/9

8:45 am-4:47 pm

1 stop23h 02m

$1,204

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Fri 9/11

10:54 am-8:50 am

2 stops30h 56m

Singapore Changi

Mon 9/14

3:15 am-5:08 pm

2 stops28h 53m

$1,205

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/10

3:43 pm-6:15 am

1 stop23h 32m

Singapore Changi

Mon 9/14

8:45 am-5:43 pm

2 stops23h 58m

$1,209

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 5/5

5:00 am-6:45 am

2 stops34h 45m

Singapore Changi

Tue 5/12

9:00 am-12:35 pm

1 stop18h 35m

$1,209

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Tue 9/1

11:46 am-6:15 am

1 stop28h 29m

Singapore Changi

Sat 9/5

8:45 am-4:48 pm

1 stop22h 03m

$1,214

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sat 5/9

6:23 am-6:35 pm

1 stop22h 12m

Singapore Changi

Thu 5/21

8:45 am-11:55 pm

1 stop29h 10m

$1,214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Oregon to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Oregon with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Singapore

What is the cheapest month to book a flight from Oregon to Singapore?

Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in July is currently the most expensive (average of $883). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oregon to Singapore?

    China Eastern, Qatar Airways, and United Airlines can get you from Oregon to Singapore in just under 20h 02m. Your travel time can differ by up to 22h 13m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Oregon to Singapore one-way?

    $387 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on ANA and United Airlines, with prices starting from $420 and $568, respectively.

  • Can I find deals for flights from Oregon to Singapore that include hotel bookings?

    Yes. In addition to deals on Oregon to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Singapore.

  • Can I find deals for business class flights from Oregon to Singapore?

    Yes. Cheapflights offers flight deals from Oregon to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oregon to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in July is currently the most expensive (average of $883). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oregon to Singapore

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Top 4 airlines flying from Oregon to Singapore

Discover the top 4 airlines that operate flights from Oregon to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$861FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$786Average$978FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$837Average$1,001FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$1,012Average$1,225FlexibilityNo cancel feeOn-time69%

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