$453+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Nov 18 — Nov 251
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 19, 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 19, 2026.
This Booking.com deal was found by Cheapflights users on 10/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:10 pm -
2 stops28h 15m
Mon 11/2310:30 am -
2 stops22h 53m
Deal found 10/15![Multiple Airlines logo]()
$1,033
This Expedia deal was found by Cheapflights users on 10/17. 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.
Wed 11/258:22 am -
2 stops28h 38m
Wed 12/911:10 pm -
2 stops32h 11m
Deal found 10/17![Multiple Airlines logo]()
$1,060
This Expedia deal was found by Cheapflights users on 10/18. 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 11/122:10 pm -
2 stops28h 15m
Thu 11/2611:55 pm -
2 stops34h 36m
Deal found 10/18![Multiple Airlines logo]()
$1,072
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:04 am -
2 stops27h 21m
Thu 11/1212:25 am -
2 stops38h 53m
Deal found 10/14![Multiple Airlines logo]()
$1,081
This Expedia deal was found by Cheapflights users on 10/18. 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.
Wed 12/28:30 am -
2 stops23h 10m
Wed 12/911:10 pm -
2 stops32h 11m
Deal found 10/18![Multiple Airlines logo]()
$1,090
This lol.travel deal was found by Cheapflights users on 10/18. 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 11/1210:00 am -
1 stop29h 00m
Thu 11/268:40 am -
1 stop16h 46m
Deal found 10/18![Air Canada logo]()
$1,114
This FlightHub deal was found by Cheapflights users on 10/17. 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.
Sun 11/293:15 pm -
2 stops41h 30m
Tue 12/228:40 am -
1 stop22h 01m
Deal found 10/17![Air Canada logo]()
$1,117
This SmartFares deal was found by Cheapflights users on 10/16. 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.
Tue 11/35:04 pm -
2 stops27h 56m
Tue 11/172:05 pm -
2 stops22h 32m
Deal found 10/16![Multiple Airlines logo]()
$1,125
This Cheapflightsfares deal was found by Cheapflights users on 10/19. 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.
Wed 12/27:00 am -
2 stops25h 50m
Tue 12/82:20 am -
2 stops37h 08m
Deal found 10/19![Japan Airlines logo]()
$1,132
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 19, 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 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/19. 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.
Thu 1/219:31 am -
2 stops23h 19m
Thu 2/118:15 am -
2 stops29h 06m
Deal found 10/19![Japan Airlines logo]()
$1,137
This Singapore Airlines deal was found by Cheapflights users on 10/16. 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 10/16![Multiple Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/15![United Airlines logo]()
$1,292
This Singapore Airlines deal was found by Cheapflights users on 10/18. 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 stop22h 37m
Wed 12/99:05 am -
1 stop20h 45m
Deal found 10/18![Multiple Airlines logo]()
$1,251
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:30 am -
1 stop22h 45m
Fri 12/1810:10 am -
1 stop30h 37m
Deal found 10/16![United Airlines logo]()
$1,298
This Singapore Airlines deal was found by Cheapflights users on 10/19. 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.
Thu 1/2110:48 am -
1 stop29h 07m
Thu 2/119:05 am -
1 stop23h 45m
Deal found 10/19![Multiple Airlines logo]()
$1,259
This United Airlines deal was found by Cheapflights users on 10/16. 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 12/25:00 am -
2 stops35h 00m
Fri 12/1810:10 am -
1 stop30h 37m
Deal found 10/16![United Airlines logo]()
$1,303
This Singapore Airlines deal was found by Cheapflights users on 10/19. 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.
Thu 1/282:34 pm -
1 stop25h 21m
Mon 2/18:45 pm -
1 stop27h 55m
Deal found 10/19![Multiple Airlines logo]()
$1,304
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated October 19, 2026 and is based on user searches.
This SmartFares deal was found by Cheapflights users on 10/16. 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.
Tue 11/35:04 pm -
2 stops27h 56m
Tue 11/172:05 pm -
2 stops22h 32m
Deal found 10/16![Multiple Airlines logo]()
$1,125
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:04 am -
2 stops27h 21m
Thu 11/1212:25 am -
2 stops38h 53m
Deal found 10/14![Multiple Airlines logo]()
$1,081
This Booking.com deal was found by Cheapflights users on 10/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:10 pm -
2 stops28h 15m
Mon 11/2310:30 am -
2 stops22h 53m
Deal found 10/15![Multiple Airlines logo]()
$1,033
This Expedia deal was found by Cheapflights users on 10/18. 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 11/122:10 pm -
2 stops28h 15m
Thu 11/2611:55 pm -
2 stops34h 36m
Deal found 10/18![Multiple Airlines logo]()
$1,072
This lol.travel deal was found by Cheapflights users on 10/18. 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 11/1210:00 am -
1 stop29h 00m
Thu 11/268:40 am -
1 stop16h 46m
Deal found 10/18![Air Canada logo]()
$1,114
This Expedia deal was found by Cheapflights users on 10/17. 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.
Wed 11/258:22 am -
2 stops28h 38m
Wed 12/911:10 pm -
2 stops32h 11m
Deal found 10/17![Multiple Airlines logo]()
$1,060
This FlightHub deal was found by Cheapflights users on 10/17. 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.
Sun 11/293:15 pm -
2 stops41h 30m
Tue 12/228:40 am -
1 stop22h 01m
Deal found 10/17![Air Canada logo]()
$1,117
This IEagle deal was found by Cheapflights users on 10/15. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:35 pm -
2 stops41h 25m
Sun 12/610:30 pm -
2 stops34h 49m
Deal found 10/15![Korean Air logo]()
$1,138
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 19, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Expedia deal was found by Cheapflights users on 10/18. 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.
Mon 11/305:45 pm -
2 stops38h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$453
This SmartFares deal was found by Cheapflights users on 10/18. 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.
Tue 12/18:30 am -
2 stops23h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$509
This Travelocity deal was found by Cheapflights users on 10/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/223:15 pm -
2 stops29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Air Canada logo]()
$531
This Expedia deal was found by Cheapflights users on 10/15. 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.
Sat 4/31:59 pm -
2 stops27h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Alaska Airlines logo]()
$548
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 12/510:56 am -
2 stops42h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 4/39:30 pm -
1 stop30h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$585
This Expedia deal was found by Cheapflights users on 10/15. 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.
Sun 11/18:28 pm -
2 stops35h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$587
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 3/2210:30 am -
1 stop41h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$616
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 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,033 (Booking.com) |
One-way from | $453 (Expedia) |
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 19, 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 11/30
5:45 pm-11:45 pm
2 stops38h 00m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$453
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 3/22
3:15 pm-11:15 am
2 stops29h 00m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$531
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 12/5
2:32 pm-12:15 am
3 stops41h 43m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$562
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 3/22
10:30 am-7:05 pm
1 stop41h 35m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$616
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 11/1
7:10 am-8:15 pm
1 stop21h 05m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$703
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 12/10
7:00 am-12:50 am
2 stops25h 50m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$706
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 12/10
10:56 am-8:40 pm
3 stops41h 44m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$866
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 12/10
3:15 pm-7:00 am
1 stop23h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$1,116
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 1/21
9:31 am-12:50 am
2 stops23h 19m
Singapore Changi
Thu 2/11
8:15 am-9:21 pm
2 stops29h 06m
$1,137
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 16 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 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 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 19, 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.
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
8.1
Food
7.8
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
8.1
Food
7.8
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
8.1
Food
7.8
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Overall
8.2
Boarding
8.3
Comfort
8.0
Crew
8.6
Entertainment
8.1
Food
7.8
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 19, 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 19, 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$1,212 | FlexibilityNo cancel fee | On-time69% |