$432+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Oct 25 — Nov 11
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Singapore with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Singapore
Cheapest
Best
Last-minute
One-way
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 25, 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 25, 2026.
This Air Canada deal was found by Cheapflights users on 9/22. 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 9/22![Air Canada logo]()
$910
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Wed 11/47:10 pm -
1 stop19h 50m
Thu 11/128:40 am -
1 stop16h 46m
Deal found 9/22![Air Canada logo]()
$920
This Justfly.com deal was found by Cheapflights users on 9/22. 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.
Wed 11/113:15 pm -
1 stop23h 45m
Mon 11/2311:10 pm -
2 stops31h 31m
Deal found 9/22![Air Canada logo]()
$927
This Air Canada deal was found by Cheapflights users on 9/24. 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 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 9/24![Air Canada logo]()
$931
This Justfly.com deal was found by Cheapflights users on 9/21. 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.
Tue 9/225:30 am -
2 stops32h 45m
Tue 9/297:00 am -
2 stops26h 31m
Deal found 9/21![Air Canada logo]()
$934
This Air Canada deal was found by Cheapflights users on 9/22. 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 9/239:00 am -
2 stops24h 30m
Wed 9/306:15 am -
2 stops23h 31m
Deal found 9/22![Multiple Airlines logo]()
$937
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Thu 11/51:25 pm -
2 stops25h 35m
Tue 11/101:35 am -
2 stops23h 51m
Deal found 9/22![Air Canada logo]()
$939
This Air Canada deal was found by Cheapflights users on 9/21. 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 11/2910:00 am -
1 stop29h 00m
Thu 12/108:40 am -
1 stop22h 01m
Deal found 9/21![Air Canada logo]()
$947
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Wed 11/410:00 am -
1 stop29h 00m
Fri 11/138:40 am -
1 stop16h 46m
Deal found 9/22![Air Canada logo]()
$957
This FlightHub deal was found by Cheapflights users on 9/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops33h 30m
Fri 11/278:40 am -
1 stop25h 51m
Deal found 9/24![Air Canada logo]()
$961
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 25, 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 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/21. 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 3/211:39 pm -
1 stop26h 21m
Sat 3/2710:20 pm -
1 stop25h 42m
Deal found 9/21![United Airlines logo]()
$1,146
This Korean Air deal was found by Cheapflights users on 9/21. 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 2/176:40 am -
2 stops25h 35m
Fri 2/1910:30 pm -
2 stops29h 38m
Deal found 9/21![Korean Air logo]()
$1,149
This Singapore Airlines deal was found by Cheapflights users on 9/21. 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.
Sun 11/15:30 pm -
1 stop33h 35m
Wed 1/209:05 am -
1 stop27h 45m
Deal found 9/21![Multiple Airlines logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/22![United Airlines logo]()
$1,153
This Korean Air deal was found by Cheapflights users on 9/23. 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 12/26:20 am -
2 stops25h 55m
Fri 12/1810:30 am -
2 stops22h 49m
Deal found 9/23![Korean Air logo]()
$1,244
This China Airlines deal was found by Cheapflights users on 9/22. 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 12/25:25 pm -
3 stops27h 40m
Fri 12/182:25 pm -
2 stops35h 08m
Deal found 9/22![Multiple Airlines logo]()
$1,339
This United Airlines deal was found by Cheapflights users on 9/24. 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 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 9/24![United Airlines logo]()
$1,241
This United Airlines deal was found by Cheapflights users on 9/22. 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 3/85:35 am -
1 stop22h 40m
Wed 3/2410:10 am -
2 stops25h 39m
Deal found 9/22![United Airlines logo]()
$1,246
This United Airlines deal was found by Cheapflights users on 9/20. 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 3/95:35 am -
1 stop22h 40m
Fri 4/26:15 am -
2 stops27h 16m
Deal found 9/20![United Airlines logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/2810:59 am -
1 stop29h 01m
Thu 12/1010:20 pm -
1 stop18h 23m
Deal found 9/21![United Airlines logo]()
$1,349
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated September 25, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/21. 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 9/2810:30 am -
2 stops31h 20m
Tue 10/133:15 am -
2 stops34h 47m
Deal found 9/21![Qatar Airways logo]()
$1,021
This Travelocity deal was found by Cheapflights users on 9/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:31 am -
2 stops32h 34m
Sun 10/258:40 am -
1 stop24h 51m
Deal found 9/25![Multiple Airlines logo]()
$1,076
This FlightHub deal was found by Cheapflights users on 9/22. 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.
Mon 10/128:09 am -
2 stops33h 41m
Sun 10/253:15 am -
2 stops34h 47m
Deal found 9/22![Qatar Airways logo]()
$1,047
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 10/175:48 pm -
2 stops36h 42m
Wed 11/49:05 am -
1 stop20h 43m
Deal found 9/23![Multiple Airlines logo]()
$1,051
This Air Canada deal was found by Cheapflights users on 9/24. 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 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 9/24![Air Canada logo]()
$931
This Air Canada deal was found by Cheapflights users on 9/25. 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.
Sun 10/183:30 pm -
2 stops48h 10m
Fri 10/308:40 am -
2 stops27h 22m
Deal found 9/25![Air Canada logo]()
$972
This FlightHub deal was found by Cheapflights users on 9/21. 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 10/188:09 am -
2 stops46h 06m
Sat 10/313:15 am -
2 stops35h 45m
Deal found 9/21![Qatar Airways logo]()
$1,088
This Justfly.com deal was found by Cheapflights users on 9/23. 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.
Mon 10/198:09 am -
2 stops33h 41m
Sat 10/313:15 am -
2 stops29h 33m
Deal found 9/23![Qatar Airways logo]()
$1,086
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 10/205:45 pm -
2 stops38h 50m
Wed 11/49:05 am -
1 stop20h 43m
Deal found 9/23![Multiple Airlines logo]()
$1,081
This Justfly.com deal was found by Cheapflights users on 9/23. 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 10/237:45 pm -
2 stops24h 30m
Fri 10/308:40 am -
2 stops48h 44m
Deal found 9/23![Air Canada logo]()
$983
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 25, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 1/137:28 am -
1 stop43h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 12/111:35 am -
1 stop39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$434
This SmartFares deal was found by Cheapflights users on 9/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:08 am -
2 stops34h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 -
3 stops55h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 12/710:56 am -
3 stops55h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$470
This Air Canada deal was found by Cheapflights users on 9/20. 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 11/177:10 pm -
1 stop19h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Air Canada logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:56 am -
3 stops57h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$481
This SmartFares deal was found by Cheapflights users on 9/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/219:30 pm -
2 stops44h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$497
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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $910 (Air Canada) |
One-way from | $432 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $1,052 |
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 25, 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 10/19
11:03 am-12:20 am
2 stops22h 17m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$511
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 10/19
7:00 am-6:35 pm
1 stop20h 35m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$678
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 1/21
7:30 am-8:15 pm
1 stop20h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$678
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 11/14
3:40 pm-8:15 pm
1 stop36h 35m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$691
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 1/21
9:00 am-5:45 am
2 stops28h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$872
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 1/9
5:32 pm-7:55 am
1 stop22h 23m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$956
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 10/4
9:00 am-6:15 am
1 stop30h 15m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$1,007
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 3/21
1:39 pm-7:00 am
1 stop26h 21m
Singapore Changi
Sat 3/27
10:20 pm-9:02 am
1 stop25h 42m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 2/17
6:40 am-12:15 am
2 stops25h 35m
Singapore Changi
Fri 2/19
10:30 pm-12:08 pm
2 stops29h 38m
$1,149
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 11/1
5:30 pm-7:05 pm
1 stop33h 35m
Singapore Changi
Wed 1/20
9:05 am-8:50 pm
1 stop27h 45m
$1,149
Showing 1-10 of 20 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 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 25, 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
Overall
8.2
Comfort
8.0
Food
7.8
Crew
8.7
Entertainment
8.1
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Overall
8.2
Comfort
8.0
Food
7.8
Crew
8.7
Entertainment
8.1
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Overall
8.2
Comfort
8.0
Food
7.8
Crew
8.7
Entertainment
8.1
Reviews
1 / 20
10.0
ExcellentJudith,Sep 2026
SFO - SIN
Boarding
8.3
Overall
8.2
Comfort
8.0
Food
7.8
Crew
8.7
Entertainment
8.1
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.
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 25, 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 25, 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% |