$459+ Cheap flights from Portland (PDX) to Singapore (SIN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Nov 13 — Nov 201
Round-trip
1 adult, Economy
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Find cheap flights from Portland 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 Portland to Singapore
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Cheapest flights from Portland to SingaporeExplore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2026.
Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2026.
This FlightHub deal was found by Cheapflights users on 10/10. 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.
Sat 11/77:04 am -
2 stops46h 56m
Thu 11/1212:25 am -
2 stops38h 53m
Deal found 10/10![Multiple Airlines logo]()
$1,020
This Priceline deal was found by Cheapflights users on 10/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:46 am -
2 stops47h 39m
Mon 11/1611:00 pm -
2 stops33h 34m
Deal found 10/12![Multiple Airlines logo]()
$1,056
This FlightHub deal was found by Cheapflights users on 10/10. 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.
Sat 11/77:04 am -
2 stops39h 56m
Fri 11/1312:25 am -
2 stops38h 53m
Deal found 10/10![Multiple Airlines logo]()
$1,075
This Air Canada deal was found by Cheapflights users on 10/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:45 pm -
2 stops43h 55m
Sun 11/19:00 pm -
2 stops37h 31m
Deal found 10/10![Air Canada logo]()
$1,082
This Gotogate deal was found by Cheapflights users on 10/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:10 pm -
2 stops28h 15m
Fri 11/208:40 am -
1 stop16h 46m
Deal found 10/9![Multiple Airlines logo]()
$1,097
This Air Canada deal was found by Cheapflights users on 10/11. 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.
Wed 11/2510:00 am -
1 stop29h 00m
Wed 12/211:55 pm -
2 stops34h 36m
Deal found 10/11![Multiple Airlines logo]()
$1,115
Best flights from Portland to SingaporeDiscover carefully curated flight deals from Portland to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
Discover carefully curated flight deals from Portland to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
This Singapore Airlines deal was found by Cheapflights users on 10/13. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/99:50 pm -
1 stop29h 15m
Fri 4/29:15 am -
1 stop26h 33m
Deal found 10/13![Multiple Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/117:26 pm -
1 stop20h 34m
Mon 11/2310:10 am -
1 stop20h 24m
Deal found 10/14![United Airlines logo]()
$1,291
This Singapore Airlines deal was found by Cheapflights users on 10/11. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:53 pm -
1 stop25h 02m
Fri 12/189:05 am -
1 stop30h 44m
Deal found 10/11![Multiple Airlines logo]()
$1,244
This Singapore Airlines deal was found by Cheapflights users on 10/13. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/25:32 pm -
1 stop22h 23m
Tue 2/239:05 am -
1 stop20h 45m
Deal found 10/13![Multiple Airlines logo]()
$1,259
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated October 14, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 10/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:45 pm -
2 stops43h 55m
Sun 11/19:00 pm -
2 stops37h 31m
Deal found 10/10![Air Canada logo]()
$1,082
This FlightHub deal was found by Cheapflights users on 10/10. 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.
Sat 11/77:04 am -
2 stops46h 56m
Thu 11/1212:25 am -
2 stops38h 53m
Deal found 10/10![Multiple Airlines logo]()
$1,020
This FlightHub deal was found by Cheapflights users on 10/10. 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.
Sat 11/77:04 am -
2 stops39h 56m
Fri 11/1312:25 am -
2 stops38h 53m
Deal found 10/10![Multiple Airlines logo]()
$1,075
This Priceline deal was found by Cheapflights users on 10/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:46 am -
2 stops47h 39m
Mon 11/1611:00 pm -
2 stops33h 34m
Deal found 10/12![Multiple Airlines logo]()
$1,056
This Gotogate deal was found by Cheapflights users on 10/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:10 pm -
2 stops28h 15m
Fri 11/208:40 am -
1 stop16h 46m
Deal found 10/9![Multiple Airlines logo]()
$1,097
This Air Canada deal was found by Cheapflights users on 10/11. 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.
Wed 11/2510:00 am -
1 stop29h 00m
Wed 12/211:55 pm -
2 stops34h 36m
Deal found 10/11![Multiple Airlines logo]()
$1,115
One-way flights from Portland to SingaporeSearch for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/115:55 pm -
1 stop33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/135:06 pm -
1 stop33h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$477
This KAYAK deal was found by Cheapflights users on 10/13. 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.
Sun 11/159:59 pm -
2 stops47h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:06 am -
2 stops32h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:31 pm -
3 stops55h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$532
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:02 pm -
3 stops43h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:06 am -
2 stops42h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$540
This Expedia deal was found by Cheapflights users on 10/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1110:30 am -
2 stops30h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Alaska Airlines logo]()
$548
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:04 pm -
2 stops37h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$565
This Priceline deal was found by Cheapflights users on 10/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/153:15 pm -
1 stop23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Air Canada logo]()
$566
Find flight deals from Portland to Singapore
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,020 (FlightHub) |
One-way from | $459 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $1,071 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 7,457,451 searches. Data last updated October 14, 2026.
Use the filters below to find and compare flights from Portland to Singapore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 1/13
5:06 pm-7:05 pm
1 stop33h 59m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$477
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 11/13
11:06 am-9:55 pm
2 stops42h 49m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$540
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 11/15
3:15 pm-7:00 am
1 stop23h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$566
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/18
2:38 pm-6:50 am
3 stops48h 12m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$594
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 11/16
3:40 pm-8:00 am
1 stop24h 20m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$703
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 12/28
5:53 pm-8:45 am
2 stops46h 52m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$750
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 12/28
5:30 am-8:15 pm
1 stop22h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$1,032
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 12/27
5:30 am-8:15 pm
1 stop22h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$1,032
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 10/27
6:30 am-5:25 pm
2 stops43h 55m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$1,169
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 3/9
9:50 pm-7:05 pm
1 stop29h 15m
Singapore Changi
Fri 4/2
9:15 am-8:48 pm
1 stop26h 33m
$1,203
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Portland to Singapore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Singapore in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Singapore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Singapore
Have a flexible travel schedule? Discover the best time to fly to Singapore from Portland with our price prediction graph.
PDX-SIN
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 Portland to Singapore
How far ahead should I book a flight from Portland to Singapore?
The price you pay for your flight from Portland to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Portland to Singapore?
Currently, April is the cheapest month in which you can book a flight from Portland to Singapore (average of $996). Flying from Portland to Singapore in June is currently the most expensive (average of $1,295). 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.
How much does it cost to fly round-trip from Portland to Singapore?
Airfare is below average for this route at the moment.
Portland to Singapore flights typically cost between $1,048 and $1,365 in November.The cheapest round-trip price found within the last 5 days was $1,020 on Multiple Airlines (Nov 7-Nov 12).
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 October 14, 2026.
Get a feel of what it's like to fly with Singapore Airlines,United Airlines, andAir Canada from Portland to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Overall
8.2
Entertainment
8.1
Food
7.8
Boarding
8.3
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Comfort
8.0
Crew
8.6
Overall
8.2
Entertainment
8.1
Food
7.8
Boarding
8.3
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Comfort
8.0
Crew
8.6
Overall
8.2
Entertainment
8.1
Food
7.8
Boarding
8.3
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Comfort
8.0
Crew
8.6
Overall
8.2
Entertainment
8.1
Food
7.8
Boarding
8.3
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Related info for your journey
Find useful and relevant information for your journey from Portland to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Singapore by cabin class
Find flights from Portland to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Singapore flights
Browse other Portland and Singapore flight options. Last updated on October 14, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Singapore
Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Top 3 airlines flying from Portland to Singapore
Discover the top 3 airlines that operate flights from Portland 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 7,457,451 searches. Data last updated October 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$789 | Average$1,022 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$820 | Average$1,220 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,024 | Average$1,177 | FlexibilityNo cancel fee | On-time69% |