$471+ 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
Jun 4 — Jun 111
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 5, 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 5, 2026.
This oojo deal was found by Cheapflights users on 5/4. 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 11/269:59 pm
PDX
- SIN
1 stop27h 46m
Singapore Airlines
Thu 12/109:00 am
SIN
- PDX
1 stop17h 50m
Singapore Airlines
Deal found 5/4![Singapore Airlines logo]()
$905
This oojo deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:30 pm
PDX
- SIN
1 stop25h 25m
Singapore Airlines
Tue 11/179:00 am
SIN
- PDX
1 stop19h 48m
Singapore Airlines
Deal found 5/3![Singapore Airlines logo]()
$976
This Orbitz deal was found by Cheapflights users on 5/4. 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.
Thu 11/269:59 pm
PDX
- SIN
1 stop27h 46m
Multiple Airlines
Thu 12/109:00 am
SIN
- PDX
1 stop19h 22m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$985
This oojo deal was found by Cheapflights users on 5/1. 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 9/95:35 pm
PDX
- SIN
1 stop23h 05m
Singapore Airlines
Wed 9/239:15 am
SIN
- PDX
1 stop22h 35m
Singapore Airlines
Deal found 5/1![Singapore Airlines logo]()
$996
This FlightHub deal was found by Cheapflights users on 5/1. 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 9/98:10 am
PDX
- SIN
2 stops33h 40m
Qatar Airways
Tue 9/223:15 am
SIN
- PDX
2 stops33h 46m
Qatar Airways
Deal found 5/1![Qatar Airways logo]()
$1,007
This FlightHub deal was found by Cheapflights users on 5/2. 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 9/137:05 am
PDX
- SIN
2 stops47h 10m
Qatar Airways
Wed 9/233:15 am
SIN
- PDX
2 stops31h 35m
Qatar Airways
Deal found 5/2![Qatar Airways logo]()
$1,009
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:05 am
PDX
- SIN
1 stop20h 30m
Singapore Airlines
Mon 10/59:15 am
SIN
- PDX
1 stop26h 33m
Singapore Airlines
Deal found 4/30![Singapore Airlines logo]()
$1,012
This Trip.com deal was found by Cheapflights users on 5/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:31 pm
PDX
- SIN
1 stop25h 44m
Multiple Airlines
Mon 10/269:15 am
SIN
- PDX
1 stop19h 35m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$1,019
This oojo deal was found by Cheapflights users on 4/30. 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 10/15:35 pm
PDX
- SIN
1 stop23h 05m
Singapore Airlines
Sat 10/109:00 am
SIN
- PDX
1 stop18h 22m
Singapore Airlines
Deal found 4/30![Singapore Airlines logo]()
$1,021
This Cheapflightsfares deal was found by Cheapflights users on 5/3. 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.
Tue 11/310:30 am
PDX
- SIN
2 stops30h 15m
Qatar Airways
Mon 11/163:15 am
SIN
- PDX
2 stops27h 38m
Qatar Airways
Deal found 5/3![Qatar Airways logo]()
$1,031
This FlightHub deal was found by Cheapflights users on 5/4. 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 11/269:40 am
PDX
- SIN
2 stops31h 05m
Qatar Airways
Tue 12/83:15 am
SIN
- PDX
2 stops27h 40m
Qatar Airways
Deal found 5/4![Qatar Airways logo]()
$1,042
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 5, 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 5, 2026.
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:05 am
PDX
- SIN
1 stop20h 30m
Singapore Airlines
Mon 10/59:15 am
SIN
- PDX
1 stop26h 33m
Singapore Airlines
Deal found 4/30![Singapore Airlines logo]()
$1,012
This Singapore Airlines deal was found by Cheapflights users on 5/4. 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.
Mon 8/179:30 pm
PDX
- SIN
1 stop29h 05m
Multiple Airlines
Tue 9/19:15 am
SIN
- PDX
1 stop19h 30m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,103
This FlightHub deal was found by Cheapflights users on 4/30. 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 8/1512:03 pm
PDX
- SIN
2 stops42h 12m
Qatar Airways
Sun 8/303:15 am
SIN
- PDX
2 stops31h 35m
Qatar Airways
Deal found 4/30![Qatar Airways logo]()
$1,119
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/185:30 am
PDX
- SIN
1 stop22h 05m
United Airlines
Tue 6/28:35 pm
SIN
- PDX
1 stop19h 15m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,637
This Qatar Airways deal was found by Cheapflights users on 5/2. 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 10/211:30 pm
PDX
- SIN
2 stops28h 20m
Qatar Airways
Sun 10/253:15 am
SIN
- PDX
2 stops34h 29m
Qatar Airways
Deal found 5/2![Qatar Airways logo]()
$1,193
This FlightHub deal was found by Cheapflights users on 5/5. 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 stops38h 00m
Multiple Airlines
Tue 6/97:00 am
SIN
- PDX
2 stops32h 50m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,311
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/177:15 am
PDX
- SIN
1 stop20h 20m
United Airlines
Mon 5/258:35 pm
SIN
- PDX
2 stops31h 31m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,697
This United Airlines deal was found by Cheapflights users on 4/30. 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 8/1510:35 am
PDX
- SIN
2 stops28h 40m
United Airlines
Mon 8/318:35 pm
SIN
- PDX
1 stop19h 12m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,697
This United Airlines deal was found by Cheapflights users on 5/4. 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 10/295:35 am
PDX
- SIN
1 stop23h 40m
United Airlines
Mon 11/210:10 am
SIN
- PDX
1 stop26h 23m
United Airlines
Deal found 5/4![United Airlines logo]()
$1,841
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated May 5, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 5/118:45 am
PDX
- SIN
2 stops40h 30m
Qatar Airways
Tue 5/191:30 am
SIN
- PDX
2 stops34h 58m
Qatar Airways
Deal found 4/30![Qatar Airways logo]()
$1,079
This oojo deal was found by Cheapflights users on 5/3. 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.
Fri 5/157:00 am
PDX
- SIN
2 stops37h 55m
EVA Air
Mon 5/253:20 pm
SIN
- PDX
2 stops37h 30m
EVA Air
Deal found 5/3![EVA Air logo]()
$1,456
This FlightHub deal was found by Cheapflights users on 5/3. 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 5/187:00 am
PDX
- SIN
2 stops31h 25m
Multiple Airlines
Tue 6/911:10 pm
SIN
- PDX
2 stops37h 50m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$1,135
This flugladen.de deal was found by Cheapflights users on 5/4. 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 flugladen.de 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
Multiple Airlines
Tue 6/23:20 pm
SIN
- PDX
2 stops23h 39m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,342
This Trip.com deal was found by Cheapflights users on 5/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:40 pm
PDX
- SIN
1 stop18h 35m
Air Canada
Thu 6/47:00 am
SIN
- PDX
1 stop27h 10m
Air Canada
Deal found 5/2![Air Canada logo]()
$1,238
This FlightHub deal was found by Cheapflights users on 4/30. 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 5/2311:16 am
PDX
- SIN
2 stops50h 59m
Multiple Airlines
Mon 6/158:05 pm
SIN
- PDX
2 stops28h 25m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,380
This Qatar Airways deal was found by Cheapflights users on 5/2. 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 6/249:19 am
PDX
- SIN
2 stops32h 31m
Qatar Airways
Wed 7/13:15 am
SIN
- PDX
2 stops28h 40m
Qatar Airways
Deal found 5/2![Qatar Airways logo]()
$1,115
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 5, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Expedia deal was found by Cheapflights users on 4/30. 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 8/207:22 pm
PDX
- SIN
2 stops37h 13m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$471
This FlightHub deal was found by Cheapflights users on 5/1. 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 7/206:19 am
PDX
- SIN
2 stops47h 56m
Qatar Airways
Deal found 5/1![Qatar Airways logo]()
$524
This FlightHub deal was found by Cheapflights users on 5/1. 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 7/228:19 am
PDX
- SIN
2 stops33h 31m
Qatar Airways
Deal found 5/1![Qatar Airways logo]()
$579
This FlightHub deal was found by Cheapflights users on 5/1. 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 8/69:19 am
PDX
- SIN
2 stops44h 56m
Qatar Airways
Deal found 5/1![Qatar Airways logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 7/2210:35 am
PDX
- SIN
3 stops46h 30m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$652
This Air Canada deal was found by Cheapflights users on 5/1. 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 8/610:10 am
PDX
- SIN
1 stop28h 05m
Air Canada
Deal found 5/1![Air Canada logo]()
$664
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/2610:29 am
PDX
- SIN
3 stops48h 31m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$687
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 7/2012:03 pm
PDX
- SIN
3 stops45h 07m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$691
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 7/212:30 pm
PDX
- SIN
3 stops39h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$709
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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $976 (oojo) |
One-way from | $471 (Expedia) |
Popular in | December |
Cheapest in | January |
Average price | $880 |
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 5, 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
Tue 9/29
6:05 am-5:35 pm
1 stop20h 30m
Singapore Changi
Mon 10/5
9:15 am-8:48 pm
1 stop26h 33m
$1,012
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 8/17
9:30 pm-5:35 pm
1 stop29h 05m
Singapore Changi
Tue 9/1
9:15 am-1:45 pm
1 stop19h 30m
$1,103
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
12:03 pm-9:15 pm
2 stops42h 12m
Singapore Changi
Sun 8/30
3:15 am-7:50 pm
2 stops31h 35m
$1,119
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Wed 10/21
1:30 pm-8:50 am
2 stops28h 20m
Singapore Changi
Sun 10/25
3:15 am-10:44 pm
2 stops34h 29m
$1,193
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/18
7:45 pm-12:45 am
2 stops38h 00m
Singapore Changi
Tue 6/9
7:00 am-12:50 am
2 stops32h 50m
$1,311
Quickest round-trip
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/18
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Tue 6/2
8:35 pm-12:50 am
1 stop19h 15m
$1,637
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sun 5/17
7:15 am-6:35 pm
1 stop20h 20m
Singapore Changi
Mon 5/25
8:35 pm-1:06 pm
2 stops31h 31m
$1,697
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 8/15
10:35 am-6:15 am
2 stops28h 40m
Singapore Changi
Mon 8/31
8:35 pm-12:47 am
1 stop19h 12m
$1,697
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Thu 10/29
5:35 am-8:15 pm
1 stop23h 40m
Singapore Changi
Mon 11/2
10:10 am-8:33 pm
1 stop26h 23m
$1,841
Cheapest one-way
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Tue 7/21
8:19 am-9:15 pm
2 stops45h 56m
$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 62 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, April is the cheapest month in which you can book a flight from Portland to Singapore (average of $538). Flying from Portland to Singapore in July is currently the most expensive (average of $862). 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 5, 2026.
Read reviews from past customers who have flown Korean Air,Singapore Airlines, andUnited Airlines 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
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
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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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 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Portland to Singapore
Discover the top 4 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$694 | Average$917 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$786 | Average$999 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$837 | Average$995 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,024 | Average$1,240 | FlexibilityNo cancel fee | On-time69% |