$436+ Cheap flights from Portland (PDX) to Singapore
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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Singapore with Cheapflights
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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
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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 September 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 September 14, 2026.
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Tue 11/33:20 pm -
1 stop23h 40m
Tue 11/178:40 am -
1 stop16h 46m
Deal found 9/10![Air Canada logo]()
$895
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:30 pm -
1 stop22h 45m
Thu 10/87:00 am -
1 stop22h 46m
Deal found 9/11![Air Canada logo]()
$901
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:45 pm -
1 stop18h 30m
Thu 10/17:00 am -
1 stop17h 31m
Deal found 9/14![Air Canada logo]()
$932
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Thu 10/223:30 pm -
1 stop22h 45m
Thu 10/298:40 am -
1 stop21h 01m
Deal found 9/10![Air Canada logo]()
$951
This Justfly.com deal was found by Cheapflights users on 9/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:10 pm -
1 stop19h 50m
Fri 12/118:40 am -
2 stops32h 03m
Deal found 9/13![Air Canada logo]()
$967
This Justfly.com deal was found by Cheapflights users on 9/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:30 pm -
2 stops39h 30m
Fri 11/138:40 am -
1 stop22h 01m
Deal found 9/11![Air Canada logo]()
$974
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Sat 11/711:30 pm -
2 stops39h 30m
Sat 11/148:40 am -
1 stop22h 01m
Deal found 9/10![Air Canada logo]()
$985
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 September 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 September 14, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/911:40 am -
2 stops35h 15m
Thu 4/13:15 am -
2 stops32h 58m
Deal found 9/14![Qatar Airways logo]()
$1,006
This Korean Air deal was found by Cheapflights users on 9/9. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
2 stops25h 00m
Sun 11/810:30 pm -
2 stops31h 05m
Deal found 9/9![Korean Air logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 9/247:00 am -
1 stop20h 35m
Thu 10/88:45 am -
2 stops24h 01m
Deal found 9/14![United Airlines logo]()
$1,136
This Singapore Airlines deal was found by Cheapflights users on 9/10. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:32 pm -
1 stop29h 33m
Tue 2/29:05 am -
1 stop27h 45m
Deal found 9/10![Multiple Airlines logo]()
$1,142
This Qatar Airways deal was found by Cheapflights users on 9/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:09 am -
2 stops33h 41m
Sun 10/253:15 am -
2 stops34h 47m
Deal found 9/14![Qatar Airways logo]()
$1,066
This Korean Air deal was found by Cheapflights users on 9/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:29 pm -
2 stops43h 31m
Fri 12/1810:30 pm -
2 stops40h 50m
Deal found 9/12![Korean Air logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 9/281:03 pm -
1 stop26h 12m
Wed 10/148:45 am -
1 stop24h 46m
Deal found 9/14![United Airlines logo]()
$1,147
This Korean Air deal was found by Cheapflights users on 9/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:29 pm -
2 stops34h 56m
Fri 12/1810:30 pm -
2 stops40h 50m
Deal found 9/11![Korean Air logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:51 am -
1 stop28h 24m
Mon 10/2610:10 am -
1 stop23h 14m
Deal found 9/11![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 1/217:30 am -
1 stop20h 45m
Thu 2/1110:20 pm -
1 stop18h 34m
Deal found 9/14![United Airlines logo]()
$1,147
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated September 14, 2026 and is based on user searches.
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:30 pm -
1 stop22h 45m
Thu 10/87:00 am -
1 stop22h 46m
Deal found 9/11![Air Canada logo]()
$901
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:45 pm -
1 stop18h 30m
Thu 10/17:00 am -
1 stop17h 31m
Deal found 9/14![Air Canada logo]()
$932
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Mon 9/2811:59 pm -
2 stops38h 16m
Wed 10/1410:50 pm -
2 stops30h 56m
Deal found 9/10![Multiple Airlines logo]()
$996
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Tue 9/299:20 am -
2 stops39h 25m
Thu 10/153:15 am -
2 stops34h 47m
Deal found 9/11![Qatar Airways logo]()
$1,027
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:09 am -
2 stops33h 41m
Sun 10/253:15 am -
2 stops34h 47m
Deal found 9/10![Qatar Airways logo]()
$1,002
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Thu 10/223:30 pm -
1 stop22h 45m
Thu 10/298:40 am -
1 stop21h 01m
Deal found 9/10![Air Canada logo]()
$951
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Sat 10/2411:59 pm -
2 stops40h 01m
Fri 10/308:40 am -
1 stop24h 51m
Deal found 9/10![Multiple Airlines logo]()
$985
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 September 14, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:48 am -
2 stops34h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 1/126:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 1/115:06 pm -
1 stop33h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 1/135:06 pm -
1 stop33h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:56 am -
1 stop40h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 1/146:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$456
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:45 pm -
1 stop18h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Air Canada logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/287:18 am -
2 stops30h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Wed 12/25:55 pm -
2 stops36h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$502
Find flight deals from Portland to Singapore
Keep the following information in mind while searching for Portland to Singapore flight deals. Data was last updated September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $895 (Air Canada) |
One-way from | $436 (SmartFares) |
Popular in | December |
Cheapest in | April |
Average price | $1,046 |
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 September 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
Tue 12/1
4:35 pm-7:05 pm
2 stops34h 30m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$505
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 10/22
11:03 am-3:45 pm
2 stops37h 42m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$524
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 1/10
6:25 am-8:45 am
2 stops34h 20m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$555
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 9/22
8:18 pm-10:15 am
3 stops46h 57m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$573
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 10/21
6:40 am-2:25 am
2 stops28h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$575
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 11/30
5:30 am-8:25 pm
2 stops46h 55m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$589
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 1/15
7:30 am-8:45 am
2 stops33h 15m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$595
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 12/6
5:59 pm-8:25 pm
2 stops58h 26m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$600
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 11/29
2:15 pm-5:00 am
2 stops46h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$600
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 10/23
5:18 pm-11:55 am
2 stops27h 37m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$621
Showing 1-10 of 21 resultsSorted by cheapest first
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
PDX-SG0
PDX-SIN
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 December is currently the most expensive (average of $1,412). 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 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 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 September 14, 2026.
Read reviews from past customers who have flown Singapore Airlines,United Airlines, andAir Canada from Portland to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Overall
8.2
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Overall
8.2
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Overall
8.2
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Overall
8.2
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - 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.
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.
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Alternative routes for Portland to Singapore
See prices for flight routes from nearby airports that may be better suited for you.
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 September 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 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 September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$789 | Average$1,013 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$796 | Average$1,220 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,024 | Average$1,212 | FlexibilityNo cancel fee | On-time69% |