$524+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Jun 17 — Jun 241
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 May 18, 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 May 18, 2026.
This oojo deal was found by Cheapflights users on 5/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 am
PDX
- SIN
1 stop20h 55m
Singapore Airlines
Tue 11/179:00 am
SIN
- PDX
1 stop20h 14m
Singapore Airlines
Deal found 5/16![Singapore Airlines logo]()
$944
This oojo deal was found by Cheapflights users on 5/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:07 am
PDX
- SIN
1 stop21h 28m
Singapore Airlines
Thu 9/109:00 am
SIN
- PDX
1 stop22h 50m
Singapore Airlines
Deal found 5/17![Singapore Airlines logo]()
$992
This FlightHub deal was found by Cheapflights users on 5/17. 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.
Thu 9/38:07 am
PDX
- SIN
2 stops40h 38m
Qatar Airways
Thu 9/107:40 pm
SIN
- PDX
2 stops41h 21m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,007
This oojo deal was found by Cheapflights users on 5/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:07 am
PDX
- SIN
1 stop21h 28m
Singapore Airlines
Sat 10/109:00 am
SIN
- PDX
1 stop23h 00m
Singapore Airlines
Deal found 5/17![Singapore Airlines logo]()
$1,035
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:06 am
PDX
- SIN
2 stops36h 44m
Qatar Airways
Sun 11/153:15 am
SIN
- PDX
2 stops29h 35m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$1,042
This FlightHub deal was found by Cheapflights users on 5/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:03 pm
PDX
- SIN
2 stops36h 42m
Qatar Airways
Mon 8/313:15 am
SIN
- PDX
2 stops34h 43m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$1,052
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am
PDX
- SIN
2 stops37h 00m
Qatar Airways
Fri 10/93:15 am
SIN
- PDX
2 stops33h 44m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$1,070
This oojo deal was found by Cheapflights users on 5/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:19 am
PDX
- SIN
1 stop20h 51m
Singapore Airlines
Tue 9/19:05 am
SIN
- PDX
1 stop19h 40m
Singapore Airlines
Deal found 5/17![Singapore Airlines logo]()
$1,081
This KAYAK deal was found by Cheapflights users on 5/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 am
PDX
- SIN
2 stops28h 10m
Multiple Airlines
Tue 11/1711:00 pm
SIN
- PDX
2 stops40h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,082
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 May 18, 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 May 18, 2026.
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:19 am
PDX
- SIN
2 stops39h 26m
Qatar Airways
Sun 8/303:15 am
SIN
- PDX
2 stops31h 35m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$1,117
This United Airlines deal was found by Cheapflights users on 5/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:43 pm
PDX
- SIN
2 stops47h 57m
United Airlines
Sat 8/2911:05 am
SIN
- PDX
2 stops26h 40m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,165
This oojo deal was found by Cheapflights users on 5/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:15 am
PDX
- SIN
1 stop20h 55m
Singapore Airlines
Mon 8/319:05 am
SIN
- PDX
1 stop26h 45m
Singapore Airlines
Deal found 5/14![Singapore Airlines logo]()
$1,180
This Air Canada deal was found by Cheapflights users on 5/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:45 pm
PDX
- SIN
1 stop18h 30m
Air Canada
Sat 7/257:00 am
SIN
- PDX
1 stop17h 31m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,267
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:15 am
PDX
- SIN
1 stop20h 55m
Multiple Airlines
Mon 8/3111:05 pm
SIN
- PDX
2 stops38h 46m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,287
This Qatar Airways deal was found by Cheapflights users on 5/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:19 am
PDX
- SIN
2 stops33h 31m
Qatar Airways
Fri 7/243:15 am
SIN
- PDX
2 stops35h 20m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$1,292
This United Airlines deal was found by Cheapflights users on 5/16. 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.
Sat 8/153:43 pm
PDX
- SIN
1 stop23h 32m
United Airlines
Mon 8/3111:05 am
SIN
- PDX
2 stops28h 29m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,311
This FlightHub deal was found by Cheapflights users on 5/13. 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 6/107:45 pm
PDX
- SIN
2 stops28h 55m
Multiple Airlines
Wed 6/178:10 am
SIN
- PDX
2 stops21h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,470
This Mytrip deal was found by Cheapflights users on 5/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:45 pm
PDX
- SIN
2 stops27h 05m
Multiple Airlines
Wed 6/178:50 pm
SIN
- PDX
3 stops33h 01m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,497
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated May 18, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated May 18, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:59 pm
PDX
- SIN
2 stops26h 56m
Multiple Airlines
Mon 5/253:20 pm
SIN
- PDX
2 stops37h 30m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,353
This Justfly.com deal was found by Cheapflights users on 5/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:45 pm
PDX
- SIN
2 stops24h 30m
Air Canada
Tue 6/97:00 am
SIN
- PDX
2 stops32h 50m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,289
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:45 pm
PDX
- SIN
2 stops25h 40m
Multiple Airlines
Tue 6/97:00 am
SIN
- PDX
2 stops32h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,304
This oojo deal was found by Cheapflights users on 5/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:59 pm
PDX
- SIN
2 stops26h 56m
EVA Air
Tue 6/91:10 pm
SIN
- PDX
2 stops22h 40m
EVA Air
Deal found 5/18![EVA Air logo]()
$1,346
This Mytrip deal was found by Cheapflights users on 5/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:45 pm
PDX
- SIN
2 stops35h 30m
Multiple Airlines
Tue 6/97:00 am
SIN
- PDX
1 stop17h 30m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,252
This Rumbo deal was found by Cheapflights users on 5/14. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:19 am
PDX
- SIN
2 stops44h 56m
Qatar Airways
Sun 7/57:40 pm
SIN
- PDX
2 stops42h 50m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$1,121
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 May 18, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
This Justfly.com deal was found by Cheapflights users on 5/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:00 am
PDX
- SIN
2 stops49h 15m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$524
This FlightHub deal was found by Cheapflights users on 5/13. 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 7/86:19 am
PDX
- SIN
2 stops42h 26m
Qatar Airways
Deal found 5/13![Qatar Airways logo]()
$564
This FlightHub deal was found by Cheapflights users on 5/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:19 am
PDX
- SIN
2 stops44h 56m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$566
This Qatar Airways deal was found by Cheapflights users on 5/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:00 am
PDX
- SIN
2 stops49h 15m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$602
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Fri 7/109:19 am
PDX
- SIN
2 stops32h 31m
Qatar Airways
Deal found 5/13![Qatar Airways logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:30 pm
PDX
- SIN
3 stops49h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$641
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:30 pm
PDX
- SIN
3 stops52h 20m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$652
This Air Canada deal was found by Cheapflights users on 5/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:45 pm
PDX
- SIN
1 stop18h 30m
Air Canada
Deal found 5/18![Air Canada logo]()
$654
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 7/810:42 am
PDX
- SIN
3 stops46h 28m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$660
This Qatar Airways deal was found by Cheapflights users on 5/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:00 am
PDX
- SIN
2 stops49h 15m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$705
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/52:30 pm
PDX
- SIN
3 stops39h 20m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$718
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 May 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,104 (FlightHub) |
One-way from | $524 (Justfly.com) |
Popular in | December |
Cheapest in | January |
Average price | $913 |
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 May 18, 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 - SIN
PDXSIN
Portland
Sat 8/15
9:19 am-3:45 pm
2 stops39h 26m
Singapore Changi
Sun 8/30
3:15 am-7:50 pm
2 stops31h 35m
$1,117
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
3:43 pm-6:40 am
2 stops47h 57m
Singapore Changi
Sat 8/29
11:05 am-10:45 pm
2 stops26h 40m
$1,165
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
7:15 am-7:10 pm
1 stop20h 55m
Singapore Changi
Mon 8/31
9:05 am-8:50 pm
1 stop26h 45m
$1,180
Quickest round-trip
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Fri 7/17
7:45 pm-5:15 am
1 stop18h 30m
Singapore Changi
Sat 7/25
7:00 am-9:31 am
1 stop17h 31m
$1,267
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
7:15 am-7:10 pm
1 stop20h 55m
Singapore Changi
Mon 8/31
11:05 pm-10:51 pm
2 stops38h 46m
$1,287
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Fri 7/17
8:19 am-8:50 am
2 stops33h 31m
Singapore Changi
Fri 7/24
3:15 am-11:35 pm
2 stops35h 20m
$1,292
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
3:43 pm-6:15 am
1 stop23h 32m
Singapore Changi
Mon 8/31
11:05 am-12:34 am
2 stops28h 29m
$1,311
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Wed 6/10
7:45 pm-3:40 pm
2 stops28h 55m
Singapore Changi
Wed 6/17
8:10 am-2:45 pm
2 stops21h 35m
$1,470
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Fri 6/5
7:45 pm-1:50 pm
2 stops27h 05m
Singapore Changi
Wed 6/17
8:50 pm-2:51 pm
3 stops33h 01m
$1,497
Cheapest one-way
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Thu 8/6
5:00 am-9:15 pm
2 stops49h 15m
$524
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
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 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Portland to Singapore?
Currently, September is the cheapest month in which you can book a flight from Portland to Singapore (average of $693). Flying from Portland to Singapore in June is currently the most expensive (average of $887). 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 May 18, 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
Entertainment
8.0
Crew
8.6
Comfort
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SYD - SIN
Overall
8.2
Entertainment
8.0
Crew
8.6
Comfort
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SYD - SIN
Overall
8.2
Entertainment
8.0
Crew
8.6
Comfort
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SYD - SIN
Overall
8.2
Entertainment
8.0
Crew
8.6
Comfort
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SYD - 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 May 18, 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 2,558,603 searches. Data last updated May 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$694 | Average$931 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$837 | Average$1,000 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,024 | Average$1,312 | FlexibilityNo cancel fee | On-time69% |