$476+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Sep 10 — Sep 171
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
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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 11, 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 11, 2026.
This oojo deal was found by Cheapflights users on 8/6. 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.
Wed 9/27:03 am -
2 stops43h 42m
Tue 9/89:50 pm -
2 stops39h 16m
Deal found 8/6![Japan Airlines logo]()
$1,002
This Korean Air deal was found by Cheapflights users on 8/6. 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 11/37:05 am -
2 stops29h 55m
Mon 11/161:35 am -
2 stops31h 29m
Deal found 8/6![Korean Air logo]()
$1,010
This Cheapflightsfares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:48 am -
2 stops36h 57m
Mon 9/213:15 am -
2 stops33h 46m
Deal found 8/11![Qatar Airways logo]()
$1,012
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:03 am -
2 stops32h 07m
Wed 9/301:55 am -
2 stops26h 55m
Deal found 8/9![Japan Airlines logo]()
$1,017
This FlightHub deal was found by Cheapflights users on 8/8. 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 9/77:09 am -
2 stops34h 41m
Wed 9/237:40 pm -
2 stops41h 21m
Deal found 8/8![Qatar Airways logo]()
$1,022
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:09 am -
2 stops40h 46m
Sun 11/83:15 am -
2 stops33h 39m
Deal found 8/11![Qatar Airways logo]()
$1,027
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:03 am -
2 stops32h 07m
Tue 9/158:05 am -
2 stops20h 32m
Deal found 8/9![Japan Airlines logo]()
$1,046
This Cheapflightsfares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:20 am -
2 stops32h 30m
Sun 10/43:15 am -
2 stops34h 47m
Deal found 8/10![Qatar Airways logo]()
$1,050
This Air Canada deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:15 pm -
1 stop23h 45m
Tue 11/178:40 am -
1 stop16h 46m
Deal found 8/10![Air Canada logo]()
$1,052
This Air Canada deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:10 am -
1 stop28h 05m
Thu 10/17:00 am -
1 stop22h 51m
Deal found 8/9![Air Canada logo]()
$1,057
This FlightHub deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub 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 stops34h 47m
Deal found 8/9![Qatar Airways logo]()
$1,061
This FlightHub deal was found by Cheapflights users on 8/8. 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 8/2710:10 am -
1 stop28h 05m
Thu 9/37:00 am -
1 stop22h 51m
Deal found 8/8![Air Canada logo]()
$1,062
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 11, 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 11, 2026.
This Korean Air deal was found by Cheapflights users on 8/6. 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 11/37:05 am -
2 stops29h 55m
Mon 11/161:35 am -
2 stops31h 29m
Deal found 8/6![Korean Air logo]()
$1,010
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/27:45 pm -
2 stops24h 30m
Tue 9/87:00 am -
1 stop22h 46m
Deal found 8/6![Air Canada logo]()
$1,064
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:26 pm -
1 stop20h 34m
Mon 11/2310:10 am -
1 stop20h 27m
Deal found 8/11![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:30 am -
1 stop22h 05m
Tue 9/158:35 pm -
1 stop28h 36m
Deal found 8/10![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/8. 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 8/253:43 pm -
1 stop23h 32m
Tue 9/18:45 am -
1 stop24h 34m
Deal found 8/8![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:03 pm -
1 stop26h 12m
Thu 10/228:45 am -
1 stop27h 15m
Deal found 8/10![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/177:49 pm -
1 stop20h 11m
Wed 2/1010:10 am -
2 stops26h 39m
Deal found 8/9![United Airlines logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:25 pm -
1 stop38h 50m
Fri 11/1310:10 am -
1 stop26h 52m
Deal found 8/10![United Airlines logo]()
$1,152
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/215:35 am -
1 stop22h 40m
Thu 2/116:35 am -
2 stops29h 58m
Deal found 8/10![United Airlines logo]()
$1,158
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Fri 8/289:00 am -
2 stops24h 45m
Sat 9/58:45 am -
1 stop21h 02m
Deal found 8/8![United Airlines logo]()
$1,158
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated August 11, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/8. 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 8/2510:10 am -
2 stops23h 35m
Thu 9/37:00 am -
1 stop27h 11m
Deal found 8/8![Air Canada logo]()
$1,075
This FlightHub deal was found by Cheapflights users on 8/8. 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 8/2710:10 am -
1 stop28h 05m
Thu 9/37:00 am -
1 stop22h 51m
Deal found 8/8![Air Canada logo]()
$1,062
This oojo deal was found by Cheapflights users on 8/6. 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.
Wed 9/27:03 am -
2 stops43h 42m
Tue 9/89:50 pm -
2 stops39h 16m
Deal found 8/6![Japan Airlines logo]()
$1,002
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/27:45 pm -
2 stops24h 30m
Tue 9/87:00 am -
1 stop22h 46m
Deal found 8/6![Air Canada logo]()
$1,064
This Cheapflightsfares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:48 am -
2 stops36h 57m
Mon 9/213:15 am -
2 stops33h 46m
Deal found 8/11![Qatar Airways logo]()
$1,012
This FlightHub deal was found by Cheapflights users on 8/8. 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 9/77:09 am -
2 stops34h 41m
Wed 9/237:40 pm -
2 stops41h 21m
Deal found 8/8![Qatar Airways logo]()
$1,022
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:03 am -
2 stops32h 07m
Tue 9/158:05 am -
2 stops20h 32m
Deal found 8/9![Japan Airlines logo]()
$1,046
This Orbitz deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:20 am -
2 stops24h 00m
Tue 9/158:05 am -
2 stops20h 32m
Deal found 8/9![Multiple Airlines logo]()
$1,063
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:03 am -
2 stops32h 07m
Wed 9/301:55 am -
2 stops26h 55m
Deal found 8/9![Japan Airlines logo]()
$1,017
This Air Canada deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:10 am -
1 stop28h 05m
Thu 10/17:00 am -
1 stop22h 51m
Deal found 8/9![Air Canada logo]()
$1,057
This Cheapflightsfares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:20 am -
2 stops32h 30m
Sun 10/43:15 am -
2 stops34h 47m
Deal found 8/10![Qatar Airways logo]()
$1,050
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 11, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This SmartFares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:48 am -
2 stops30h 17m
Deal found 8/10![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:02 am -
2 stops43h 28m
Deal found 8/9![Multiple Airlines logo]()
$508
This SmartFares deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/109:40 am -
2 stops23h 15m
Deal found 8/9![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/271:47 pm -
3 stops40h 43m
Deal found 8/6![Multiple Airlines logo]()
$514
This Cheapflightsfares deal was found by Cheapflights users on 8/8. 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 8/2711:48 am -
2 stops36h 57m
Deal found 8/8![Qatar Airways logo]()
$527
This Justfly.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/45:02 am -
2 stops35h 43m
Deal found 8/10![Qatar Airways logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/57:00 am -
2 stops25h 55m
Deal found 8/10![Multiple Airlines logo]()
$544
This Qatar Airways deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/67:10 am -
2 stops33h 35m
Deal found 8/10![Qatar Airways logo]()
$555
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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,002 (oojo) |
One-way from | $476 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $1,039 |
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 2,558,603 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Portland to Singapore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 11/3
7:05 am-5:00 am
2 stops29h 55m
Singapore Changi
Mon 11/16
1:35 am-5:04 pm
2 stops31h 29m
$1,010
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 9/2
7:45 pm-11:15 am
2 stops24h 30m
Singapore Changi
Tue 9/8
7:00 am-2:46 pm
1 stop22h 46m
$1,064
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
Mon 11/23
10:10 am-2:37 pm
1 stop20h 27m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 9/9
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Tue 9/15
8:35 pm-10:11 am
1 stop28h 36m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 8/25
3:43 pm-6:15 am
1 stop23h 32m
Singapore Changi
Tue 9/1
8:45 am-6:19 pm
1 stop24h 34m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 10/18
1:03 pm-6:15 am
1 stop26h 12m
Singapore Changi
Thu 10/22
8:45 am-9:00 pm
1 stop27h 15m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 1/17
7:49 pm-8:00 am
1 stop20h 11m
Singapore Changi
Wed 2/10
10:10 am-8:49 pm
2 stops26h 39m
$1,151
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sat 11/7
1:25 pm-8:15 pm
1 stop38h 50m
Singapore Changi
Fri 11/13
10:10 am-9:02 pm
1 stop26h 52m
$1,152
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 1/21
5:35 am-8:15 pm
1 stop22h 40m
Singapore Changi
Thu 2/11
6:35 am-8:33 pm
2 stops29h 58m
$1,158
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 8/28
9:00 am-12:45 am
2 stops24h 45m
Singapore Changi
Sat 9/5
8:45 am-2:47 pm
1 stop21h 02m
$1,158
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, 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 $1,709). 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.
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 11, 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.
Entertainment
8.1
Crew
8.6
Food
7.8
Boarding
8.3
Overall
8.2
Comfort
8.0
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Crew
8.6
Food
7.8
Boarding
8.3
Overall
8.2
Comfort
8.0
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Crew
8.6
Food
7.8
Boarding
8.3
Overall
8.2
Comfort
8.0
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Crew
8.6
Food
7.8
Boarding
8.3
Overall
8.2
Comfort
8.0
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Related info for your journey
Find useful and relevant information for your journey from Portland to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Portland to Singapore
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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.
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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 11, 2026.
Popular flight searches
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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 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$734 | Average$1,078 | 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% |