$434+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Nov 3 — Nov 101
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 October 4, 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 4, 2026.
This Air Canada deal was found by Cheapflights users on 9/29. 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 10/2810:00 am -
1 stop30h 00m
Wed 11/410:45 am -
2 stops23h 46m
Deal found 9/29![Multiple Airlines logo]()
$937
This Air Canada deal was found by Cheapflights users on 10/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:45 pm -
1 stop18h 30m
Sat 10/107:00 am -
1 stop17h 31m
Deal found 10/1![Air Canada logo]()
$957
This Air Canada deal was found by Cheapflights users on 10/4. 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 10/4![Air Canada logo]()
$972
This Air Canada deal was found by Cheapflights users on 10/2. 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 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 stop28h 06m
Deal found 10/2![Air Canada logo]()
$984
This Air Canada deal was found by Cheapflights users on 9/29. 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.
Fri 11/137:10 pm -
1 stop19h 50m
Fri 11/208:40 am -
1 stop16h 46m
Deal found 9/29![Air Canada logo]()
$985
This Air Canada deal was found by Cheapflights users on 10/4. 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 11/113:15 pm -
1 stop23h 45m
Mon 11/2311:10 pm -
2 stops31h 31m
Deal found 10/4![Air Canada logo]()
$991
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 4, 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 4, 2026.
This Korean Air deal was found by Cheapflights users on 10/1. 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 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 stops34h 41m
Deal found 10/1![Korean Air logo]()
$1,132
This Singapore Airlines deal was found by Cheapflights users on 10/2. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:35 pm -
1 stop23h 55m
Fri 12/189:05 am -
1 stop22h 26m
Deal found 10/2![Multiple Airlines logo]()
$1,237
This United Airlines deal was found by Cheapflights users on 10/4. 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 11/117:10 am -
1 stop21h 05m
Mon 11/2310:10 am -
1 stop28h 36m
Deal found 10/4![United Airlines logo]()
$1,241
This Korean Air deal was found by Cheapflights users on 10/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:20 am -
2 stops25h 55m
Sun 11/221:40 am -
2 stops31h 31m
Deal found 10/3![Korean Air logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 10/4. 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 10/125:30 am -
1 stop22h 05m
Mon 10/2610:10 am -
2 stops26h 03m
Deal found 10/4![United Airlines logo]()
$1,246
This Korean Air deal was found by Cheapflights users on 10/4. 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.
Mon 10/128:44 pm -
2 stops41h 16m
Mon 10/2610:30 am -
2 stops24h 30m
Deal found 10/4![Korean Air logo]()
$1,197
This China Airlines deal was found by Cheapflights users on 10/3. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:25 pm -
3 stops27h 40m
Mon 11/232:25 pm -
2 stops23h 29m
Deal found 10/3![Multiple Airlines logo]()
$1,359
This Korean Air deal was found by Cheapflights users on 10/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:00 am -
2 stops45h 25m
Fri 12/1810:30 pm -
2 stops36h 31m
Deal found 10/3![Korean Air logo]()
$1,197
This United Airlines deal was found by Cheapflights users on 10/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:09 am -
1 stop21h 06m
Sat 11/1410:20 pm -
1 stop38h 42m
Deal found 10/3![United Airlines logo]()
$1,385
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated October 4, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated October 4, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 10/4. 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 10/4![Air Canada logo]()
$972
This Air Canada deal was found by Cheapflights users on 9/29. 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 10/2810:00 am -
1 stop30h 00m
Wed 11/410:45 am -
2 stops23h 46m
Deal found 9/29![Multiple Airlines logo]()
$937
This Air Canada deal was found by Cheapflights users on 10/2. 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 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 stop28h 06m
Deal found 10/2![Air Canada logo]()
$984
This Air Canada deal was found by Cheapflights users on 10/4. 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 11/113:15 pm -
1 stop23h 45m
Mon 11/2311:10 pm -
2 stops31h 31m
Deal found 10/4![Air Canada logo]()
$991
This Air Canada deal was found by Cheapflights users on 9/29. 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.
Fri 11/137:10 pm -
1 stop19h 50m
Fri 11/208:40 am -
1 stop16h 46m
Deal found 9/29![Air Canada 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 October 4, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
This SmartFares deal was found by Cheapflights users on 10/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:20 am -
2 stops33h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Multiple Airlines logo]()
$434
This SmartFares deal was found by Cheapflights users on 9/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:08 am -
2 stops36h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:04 am -
2 stops29h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$447
This Priceline deal was found by Cheapflights users on 10/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:15 pm -
1 stop23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Air Canada logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:51 pm -
2 stops58h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/79:33 pm -
2 stops56h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:04 pm -
3 stops31h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Multiple Airlines logo]()
$583
This Justfly.com deal was found by Cheapflights users on 9/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/13:20 pm -
1 stop23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Air Canada logo]()
$592
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 October 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $937 (Air Canada) |
One-way from | $434 (SmartFares) |
Popular in | December |
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 4, 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
Mon 11/16
12:31 pm-10:25 am
3 stops53h 54m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$539
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 11/17
12:04 pm-11:50 am
3 stops31h 46m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$583
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/11
7:26 pm-8:00 am
1 stop20h 34m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$678
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
$678
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 11/17
7:10 am-8:15 pm
1 stop21h 05m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$678
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/4
7:15 am-12:15 am
2 stops25h 00m
Singapore Changi
Sun 11/8
10:30 pm-5:11 pm
2 stops34h 41m
$1,132
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/11
6:20 am-12:15 am
2 stops25h 55m
Singapore Changi
Sun 11/22
1:40 am-5:11 pm
2 stops31h 31m
$1,132
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 10/12
8:44 pm-5:00 am
2 stops41h 16m
Singapore Changi
Mon 10/26
10:30 am-8:00 pm
2 stops24h 30m
$1,197
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 12/1
7:00 am-8:25 pm
2 stops45h 25m
Singapore Changi
Fri 12/18
10:30 pm-7:01 pm
2 stops36h 31m
$1,197
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 12/2
1:35 pm-5:30 am
1 stop23h 55m
Singapore Changi
Fri 12/18
9:05 am-3:31 pm
1 stop22h 26m
$1,237
Showing 1-10 of 19 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 $1,301). 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 47 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 October 4, 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
Crew
8.6
Food
7.8
Overall
8.2
Entertainment
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Crew
8.6
Food
7.8
Overall
8.2
Entertainment
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Crew
8.6
Food
7.8
Overall
8.2
Entertainment
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Crew
8.6
Food
7.8
Overall
8.2
Entertainment
8.1
Comfort
8.0
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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Alternative routes for Portland to Singapore
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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 4, 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 October 4, 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% |