HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Singapore

$449+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oregon to Singapore with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2025.

Round-trip from

$735
(Air Canada)

One-way from

$449
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,081
From Oregon to Singapore
Search Deals
One-way flight from Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 3, 2025.

This Air Canada deal was found by Cheapflights users on 6/30. 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.
Thu 9/43:25 pmPDX - SIN
1 stop24h 40mAir Canada
Thu 9/259:10 amSIN - PDX
1 stop24h 36mAir Canada
Deal found 6/30$735
This FlightHub deal was found by Cheapflights users on 7/1. 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 10/286:00 amPDX - SIN
1 stop20h 45mSingapore Airlines
Tue 11/119:00 amSIN - PDX
1 stop17h 32mSingapore Airlines
Deal found 7/1$755
This FlightHub deal was found by Cheapflights users on 7/2. 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 9/48:55 amPDX - SIN
2 stops23h 45mKorean Air
Wed 9/241:10 amSIN - PDX
2 stops28h 41mKorean Air
Deal found 7/2$814
This Gurufare deal was found by Cheapflights users on 7/2. 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 10/217:40 amPDX - SIN
2 stops25h 40mJapan Airlines
Tue 11/118:15 amSIN - PDX
2 stops20h 14mJapan Airlines
Deal found 7/2$836
This Delta deal was found by Cheapflights users on 6/30. 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.
Mon 7/219:15 amPDX - SIN
2 stops23h 25mDelta
Sun 7/271:10 amSIN - PDX
2 stops34h 51mDelta
Deal found 6/30$842
This Japan Airlines deal was found by Cheapflights users on 7/3. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:16 pmPDX - SIN
2 stops37h 14mMultiple Airlines
Wed 10/298:15 amSIN - PDX
2 stops27h 55mMultiple Airlines
Deal found 7/3$905
This American Airlines deal was found by Cheapflights users on 7/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:30 amPDX - SIN
2 stops24h 50mAmerican Airlines
Wed 9/241:55 amSIN - PDX
2 stops27h 28mAmerican Airlines
Deal found 7/3$950
This Trip.com deal was found by Cheapflights users on 7/1. 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.
Fri 8/156:00 amEUG - SIN
2 stops33h 40mMultiple Airlines
Fri 8/2211:05 amSIN - EUG
2 stops27h 54mMultiple Airlines
Deal found 7/1$997
This FlightHub deal was found by Cheapflights users on 7/1. 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 8/56:30 amEUG - SIN
2 stops26h 10mKorean Air
Tue 8/261:10 amSIN - EUG
2 stops30h 41mKorean Air
Deal found 7/1$1,004
This Ovago deal was found by Cheapflights users on 7/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:27 pmBOI - SIN
2 stops25h 18mMultiple Airlines
Thu 9/251:25 pmSIN - BOI
2 stops23h 29mMultiple Airlines
Deal found 7/1$1,016
This Gurufare deal was found by Cheapflights users on 7/2. 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.
Mon 9/1511:22 amBOI - SIN
2 stops22h 58mJapan Airlines
Thu 9/258:05 amSIN - BOI
2 stops20h 55mJapan Airlines
Deal found 7/2$1,029
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 8/52:02 pmEUG - SIN
1 stop37h 23mUnited Airlines
Wed 8/2711:05 amSIN - EUG
2 stops45h 45mUnited Airlines
Deal found 7/1$1,042

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 July 3, 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

3:25 pm-7:05 am

1 stop24h 40m

Singapore Changi

Thu 9/25

9:10 am-6:46 pm

1 stop24h 36m

$735

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10/28

6:00 am-5:45 pm

1 stop20h 45m

Singapore Changi

Tue 11/11

9:00 am-10:32 am

1 stop17h 32m

$755

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 9/4

8:55 am-11:40 pm

2 stops23h 45m

Singapore Changi

Wed 9/24

1:10 am-2:51 pm

2 stops28h 41m

$814

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10/21

7:40 am-12:20 am

2 stops25h 40m

Singapore Changi

Tue 11/11

8:15 am-12:29 pm

2 stops20h 14m

$836

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 7/21

9:15 am-11:40 pm

2 stops23h 25m

Singapore Changi

Sun 7/27

1:10 am-9:01 pm

2 stops34h 51m

$842

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 10/15

1:16 pm-5:30 pm

2 stops37h 14m

Singapore Changi

Wed 10/29

8:15 am-9:10 pm

2 stops27h 55m

$905

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

$950

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Fri 8/15

6:00 am-6:40 am

2 stops33h 40m

Singapore Changi

Fri 8/22

11:05 am-11:59 pm

2 stops27h 54m

$997

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Tue 8/5

6:30 am-11:40 pm

2 stops26h 10m

Singapore Changi

Wed 8/27

10:30 pm-4:51 pm

2 stops33h 21m

$1,004

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Mon 9/15

8:27 pm-11:45 am

2 stops25h 18m

Singapore Changi

Thu 9/25

1:25 pm-10:54 pm

2 stops23h 29m

$1,016

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 35 results
1
2
3
4

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, October is the cheapest month in which you can book a flight from Oregon to Singapore (average of $1,008). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,674). 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 July 3, 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.

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 July 3, 2025.
Read through reviews of airlines operating flights from Oregon to Singapore, such as Korean Air, Japan Airlines, and China Airlines. 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
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
1,503 reviews
Korean Air
8.4
Very good
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
747 reviews
Korean Air
8.4
Very good
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
1,320 reviews
Korean Air
8.4
Very good
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,101 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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?

    $488 is the cheapest one-way deal found within the past few days, from Singapore Airlines. You may also be able to find cheap deals on Air Canada and Korean Air, with prices starting from $492 and $548, 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, October is the cheapest month in which you can book a flight from Oregon to Singapore (average of $1,008). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,674). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Oregon to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
Los Angeles to Narita flights
John F Kennedy Intl to Haneda flights
John F Kennedy Intl to Suvarnabhumi flights
Newark to Haneda flights
Newark to Narita flights
San Francisco to Narita flights
San Francisco to Haneda flights
Los Angeles to Manila flights
Seattle to Narita flights
Seattle to Haneda flights
Dallas/Fort Worth to Narita flights
San Francisco to Manila flights
John F Kennedy Intl to Narita flights
Dallas/Fort Worth to Haneda flights
Los Angeles to Suvarnabhumi flights
Newark to Suvarnabhumi flights
John F Kennedy Intl to New Delhi flights
Boston to Narita flights
LaGuardia to Narita flights
John F Kennedy Intl to Hong Kong flights
LaGuardia to Haneda flights
LaGuardia to Suvarnabhumi flights
O'Hare Intl to Haneda flights
O'Hare Intl to Narita flights
San Francisco to Hong Kong flights
Seattle to Suvarnabhumi flights
Ontario to Narita flights
San Francisco to Suvarnabhumi flights
San Francisco to New Delhi flights
Dallas/Fort Worth to Suvarnabhumi flights
Los Angeles to Incheon Intl flights
John F Kennedy Intl to Incheon Intl flights
Dulles Intl to Haneda flights
Hobby to Haneda flights
Seattle to Incheon Intl flights
John F Kennedy Intl to Taiwan Taoyuan Intl flights
John F Kennedy Intl to Hongqiao Intl flights
Newark to Mumbai flights
John F Kennedy Intl to Mumbai flights
Dulles Intl to Suvarnabhumi flights
John F Kennedy Intl to Manila flights
O'Hare Intl to Suvarnabhumi flights
San Francisco to Taiwan Taoyuan Intl flights
Atlanta to Haneda flights
Hobby to Narita flights
John F Kennedy Intl to Ahmedabad flights
LaGuardia to New Delhi flights
Los Angeles to Hongqiao Intl flights
San Francisco to Ho Chi Minh City flights

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$817FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$799Average$1,136FlexibilityNo cancel feeOn-time69%
DeltaCheapest$800Average$921FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$930Average$978FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$978Average$1,284FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.