$415+ Cheap flights from Portland (PDX) 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Sep 28 — Oct 51
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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Best
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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 August 29, 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 August 29, 2026.
This Air Canada deal was found by Cheapflights users on 8/27. 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 11/33:15 pm -
1 stop23h 45m
Tue 11/178:40 am -
1 stop16h 46m
Deal found 8/27![Air Canada logo]()
$895
This Bravofly deal was found by Cheapflights users on 8/26. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:59 pm -
2 stops42h 01m
Wed 10/2810:30 pm -
2 stops31h 21m
Deal found 8/26![Korean Air logo]()
$950
This Justfly.com deal was found by Cheapflights users on 8/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:15 pm -
1 stop23h 45m
Fri 11/138:40 am -
2 stops32h 04m
Deal found 8/29![Air Canada logo]()
$967
This Air Canada deal was found by Cheapflights users on 8/27. 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 11/83:15 pm -
1 stop23h 45m
Sat 11/288:40 am -
1 stop16h 46m
Deal found 8/27![Air Canada logo]()
$970
This FlightHub deal was found by Cheapflights users on 8/26. 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 11/711:30 pm -
2 stops39h 30m
Fri 11/138:40 am -
2 stops32h 04m
Deal found 8/26![Air Canada logo]()
$971
This Air Canada deal was found by Cheapflights users on 8/26. 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 stop25h 51m
Deal found 8/26![Air Canada logo]()
$984
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 August 29, 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 August 29, 2026.
This Korean Air deal was found by Cheapflights users on 8/25. 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 50m
Sun 11/1510:30 pm -
2 stops36h 26m
Deal found 8/25![Korean Air logo]()
$1,051
This United Airlines deal was found by Cheapflights users on 8/28. 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 11/75:30 am -
1 stop22h 45m
Sat 11/1410:20 pm -
1 stop27h 58m
Deal found 8/28![United Airlines logo]()
$1,147
This Qatar Airways deal was found by Cheapflights users on 8/28. 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.
Thu 10/111:48 am -
2 stops36h 57m
Fri 10/93:15 am -
2 stops33h 41m
Deal found 8/28![Qatar Airways logo]()
$1,165
This Singapore Airlines deal was found by Cheapflights users on 8/28. 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 12/29:50 pm -
1 stop29h 15m
Fri 12/189:05 am -
1 stop22h 26m
Deal found 8/28![Multiple Airlines logo]()
$1,192
This United Airlines deal was found by Cheapflights users on 8/25. 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 8/25![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 8/28. 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 11/73:40 pm -
1 stop24h 20m
Fri 11/1310:20 pm -
1 stop18h 24m
Deal found 8/28![United Airlines logo]()
$1,147
This China Airlines deal was found by Cheapflights users on 8/29. 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 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 8/29![Multiple Airlines logo]()
$1,305
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Sun 1/177:30 am -
1 stop20h 45m
Wed 1/2710:10 am -
2 stops26h 39m
Deal found 8/25![United Airlines logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 8/26. 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 stop32h 49m
Mon 11/3010:10 am -
1 stop28h 36m
Deal found 8/26![United Airlines logo]()
$1,153
This China Airlines deal was found by Cheapflights users on 8/27. 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.
Tue 12/15:25 pm -
3 stops27h 40m
Thu 12/172:00 am -
2 stops36h 05m
Deal found 8/27![Multiple Airlines logo]()
$1,561
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated August 29, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 8/26. 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 9/2210:10 am -
1 stop28h 05m
Wed 10/146:15 am -
2 stops23h 31m
Deal found 8/26![Air Canada logo]()
$996
This Air Canada deal was found by Cheapflights users on 8/25. 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 9/257:45 pm -
1 stop18h 30m
Wed 9/306:15 am -
2 stops27h 56m
Deal found 8/25![Air Canada logo]()
$1,033
This Cheapflightsfares deal was found by Cheapflights users on 8/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:48 am -
2 stops30h 02m
Thu 10/13:15 am -
2 stops31h 35m
Deal found 8/29![Qatar Airways logo]()
$1,040
This Air Canada deal was found by Cheapflights users on 8/27. 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 9/2710:10 am -
1 stop28h 05m
Sun 10/117:00 am -
1 stop17h 31m
Deal found 8/27![Air Canada logo]()
$970
This Cheapflightsfares deal was found by Cheapflights users on 8/26. 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 9/2811:48 am -
2 stops30h 02m
Tue 10/133:15 am -
2 stops34h 47m
Deal found 8/26![Qatar Airways logo]()
$1,002
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 9/287:03 am -
2 stops26h 17m
Tue 10/131:55 am -
2 stops29h 49m
Deal found 8/24![Japan Airlines logo]()
$1,026
This oojo deal was found by Cheapflights users on 8/27. 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 9/2911:48 am -
2 stops36h 57m
Fri 10/163:15 am -
2 stops28h 35m
Deal found 8/27![Qatar Airways logo]()
$1,060
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 August 29, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 1/2610:59 am -
1 stop40h 06m
Deal found 8/26![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 1/277:09 am -
1 stop43h 56m
Deal found 8/25![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 1/286:10 pm -
1 stop32h 55m
Deal found 8/25![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 1/107:28 am -
1 stop43h 37m
Deal found 8/27![Multiple Airlines logo]()
$468
This FlightHub deal was found by Cheapflights users on 8/26. 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 1/267:30 am -
2 stops31h 30m
Deal found 8/26![Air Canada logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/245:48 pm -
2 stops37h 07m
Deal found 8/24![Multiple Airlines logo]()
$504
This oojo deal was found by Cheapflights users on 8/25. 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.
Mon 11/306:22 am -
2 stops34h 23m
Deal found 8/25![Qatar Airways logo]()
$524
This oojo deal was found by Cheapflights users on 8/25. 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.
Thu 10/158:09 am -
2 stops46h 06m
Deal found 8/25![Qatar Airways logo]()
$527
This Expedia deal was found by Cheapflights users on 8/25. 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 10/157:45 pm -
1 stop18h 30m
Deal found 8/25![Air Canada logo]()
$537
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 August 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $895 (Air Canada) |
One-way from | $415 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,164 |
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 August 29, 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 11/11
6:20 am-12:10 am
2 stops25h 50m
Singapore Changi
Sun 11/15
10:30 pm-6:56 pm
2 stops36h 26m
$1,051
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 11/7
5:30 am-8:15 pm
1 stop22h 45m
Singapore Changi
Sat 11/14
10:20 pm-10:18 am
1 stop27h 58m
$1,147
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 10/12
10:51 am-6:15 am
1 stop28h 24m
Singapore Changi
Mon 10/26
10:10 am-6:24 pm
1 stop23h 14m
$1,147
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 11/7
3:40 pm-8:00 am
1 stop24h 20m
Singapore Changi
Fri 11/13
10:20 pm-12:44 am
1 stop18h 24m
$1,147
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 1/17
7:30 am-8:15 pm
1 stop20h 45m
Singapore Changi
Wed 1/27
10:10 am-8:49 pm
2 stops26h 39m
$1,151
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/11
7:26 pm-8:15 pm
1 stop32h 49m
Singapore Changi
Mon 11/30
10:10 am-10:46 pm
1 stop28h 36m
$1,153
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 10/1
11:48 am-3:45 pm
2 stops36h 57m
Singapore Changi
Fri 10/9
3:15 am-9:56 pm
2 stops33h 41m
$1,165
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 12/2
9:50 pm-7:05 pm
1 stop29h 15m
Singapore Changi
Fri 12/18
9:05 am-3:31 pm
1 stop22h 26m
$1,192
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 11/11
5:25 pm-1:05 pm
3 stops27h 40m
Singapore Changi
Mon 11/23
2:25 pm-9:54 pm
2 stops23h 29m
$1,305
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 12/1
5:25 pm-1:05 pm
3 stops27h 40m
Singapore Changi
Thu 12/17
2:00 am-10:05 pm
2 stops36h 05m
$1,561
Showing 1-10 of 18 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, January is the cheapest month in which you can book a flight from Portland to Singapore (average of $891). Flying from Portland to Singapore in December is currently the most expensive (average of $1,616). 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 August 29, 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.
Food
7.8
Comfort
8.0
Overall
8.2
Boarding
8.3
Entertainment
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Food
7.8
Comfort
8.0
Overall
8.2
Boarding
8.3
Entertainment
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Food
7.8
Comfort
8.0
Overall
8.2
Boarding
8.3
Entertainment
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Food
7.8
Comfort
8.0
Overall
8.2
Boarding
8.3
Entertainment
8.1
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.
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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 August 29, 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 August 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$734 | Average$1,098 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$789 | Average$1,002 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,024 | Average$1,201 | FlexibilityNo cancel fee | On-time69% |