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$448+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Oregon to Singapore

Keep the following information in mind while searching for Oregon to Singapore flight deals. Data was last updated June 12, 2025.

Round-trip from

$694
(Air Canada)

One-way from

$448
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,091
From Oregon to Singapore
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One-way flight from Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:25 pmPDX - SIN
1 stop24h 40mAir Canada
Tue 9/309:10 amSIN - PDX
1 stop20h 36mAir Canada
Deal found 6/11$694
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Wed 9/247:40 pmPDX - SIN
2 stops36h 40mMultiple Airlines
Wed 10/228:00 amSIN - PDX
2 stops25h 46mMultiple Airlines
Deal found 6/10$744
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Wed 10/157:00 amPDX - SIN
1 stop21h 10mSingapore Airlines
Wed 10/299:15 amSIN - PDX
1 stop19h 08mSingapore Airlines
Deal found 6/10$795
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Tue 10/72:44 pmBOI - SIN
2 stops26h 21mAir Canada
Tue 10/149:10 amSIN - BOI
2 stops42h 38mAir Canada
Deal found 6/10$927
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2712:43 pmBOI - SIN
2 stops52h 32mMultiple Airlines
Wed 9/38:30 pmSIN - BOI
2 stops37h 20mMultiple Airlines
Deal found 6/11$956
This oojo deal was found by Cheapflights users on 6/10. 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.
Tue 9/165:36 pmPDX - SIN
2 stops39h 59mChina Airlines
Mon 10/202:00 amSIN - PDX
2 stops53h 50mChina Airlines
Deal found 6/10$977
This FlightHub deal was found by Cheapflights users on 6/11. 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 9/46:14 amPDX - SIN
2 stops31h 46mKorean Air
Wed 9/241:10 amSIN - PDX
2 stops30h 56mKorean Air
Deal found 6/11$992
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Tue 10/76:30 amBOI - SIN
1 stop21h 05mSingapore Airlines
Tue 10/149:00 amSIN - BOI
1 stop19h 35mSingapore Airlines
Deal found 6/10$1,002
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 9/1510:38 amBOI - SIN
2 stops28h 22mKorean Air
Wed 9/241:10 amSIN - BOI
2 stops31h 21mKorean Air
Deal found 6/12$1,003
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Wed 10/157:00 amPDX - SIN
2 stops26h 20mJapan Airlines
Tue 10/282:20 amSIN - PDX
2 stops29h 30mJapan Airlines
Deal found 6/11$1,016
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:45 amPDX - SIN
1 stop19h 40mUnited Airlines
Tue 9/308:45 amSIN - PDX
1 stop24h 48mUnited Airlines
Deal found 6/10$1,025
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:10 amPDX - SIN
2 stops23h 30mDelta
Mon 10/201:10 amSIN - PDX
2 stops30h 56mDelta
Deal found 6/10$1,027

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 June 12, 2025.
Use the filters below to find and compare flights from Oregon to Singapore that are best for you.

Fly from

Oregon

Fly to

Singapore

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/4

7:40 pm-7:05 am

1 stop20h 25m

Singapore Changi

Thu 9/25

9:10 am-2:46 pm

1 stop20h 36m

$694

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Tue 10/7

2:44 pm-7:05 am

2 stops26h 21m

Singapore Changi

Tue 10/14

9:10 am-1:48 pm

2 stops42h 38m

$927

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 8/27

12:43 pm-7:15 am

2 stops52h 32m

Singapore Changi

Wed 9/3

8:30 pm-7:50 pm

2 stops37h 20m

$956

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/4

6:14 am-5:00 am

2 stops31h 46m

Singapore Changi

Wed 9/24

1:10 am-5:06 pm

2 stops30h 56m

$992

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 8/9

5:55 pm-9:30 pm

2 stops36h 35m

Singapore Changi

Sun 8/17

10:50 pm-4:25 pm

2 stops32h 35m

$993

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Tue 10/7

6:30 am-5:35 pm

1 stop21h 05m

Singapore Changi

Tue 10/14

9:00 am-2:35 pm

1 stop19h 35m

$1,002

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Mon 9/15

10:38 am-5:00 am

2 stops28h 22m

Singapore Changi

Wed 9/24

1:10 am-6:31 pm

2 stops31h 21m

$1,003

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 8/20

7:35 pm-6:15 am

1 stop19h 40m

Singapore Changi

Wed 8/27

8:45 am-2:42 pm

1 stop20h 57m

$1,025

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 8/20

11:14 am-11:40 pm

2 stops21h 26m

Singapore Changi

Mon 8/25

1:10 am-4:59 pm

2 stops30h 49m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/4

8:30 am-12:20 am

2 stops24h 50m

Singapore Changi

Wed 9/24

1:55 am-2:23 pm

2 stops27h 28m

$1,042

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 31 results
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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 $1,011). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,684). 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.

What is the cheapest time of day to fly from OR to SG?

Find hourly flight availability from Oregon to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Singapore as you normally would.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and China Airlines from Oregon to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,088 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,489 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
738 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
882 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,302 reviews
Korean Air
8.4
Very good
1,088 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

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

    $458 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 United Airlines and Singapore Airlines, with prices starting from $605 and $986, 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 $1,011). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,684). 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

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Top 5 airlines flying from Oregon to Singapore

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$829FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$800Average$1,159FlexibilityNo cancel feeOn-time69%
DeltaCheapest$800Average$921FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$930Average$978FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$978Average$1,273FlexibilityNo cancel feeOn-time81%

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