$313+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
May 21 — May 281
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 April 21, 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 April 21, 2026.
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:07 am
PDX
- SIN
1 stop20h 28m
Singapore Airlines
Thu 10/159:00 am
SIN
- PDX
1 stop18h 22m
Singapore Airlines
Deal found 4/20![Singapore Airlines logo]()
$897
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:07 am
PDX
- SIN
1 stop20h 28m
Singapore Airlines
Mon 10/129:15 am
SIN
- PDX
1 stop28h 18m
Singapore Airlines
Deal found 4/21![Singapore Airlines logo]()
$917
This oojo deal was found by Cheapflights users on 4/16. 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.
Tue 10/65:40 pm
PDX
- SIN
1 stop23h 00m
Singapore Airlines
Tue 10/279:15 am
SIN
- PDX
1 stop19h 35m
Singapore Airlines
Deal found 4/16![Singapore Airlines logo]()
$940
This Travelocity deal was found by Cheapflights users on 4/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:19 am
PDX
- SIN
2 stops24h 16m
Multiple Airlines
Thu 9/242:30 pm
SIN
- PDX
2 stops41h 20m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$941
This oojo deal was found by Cheapflights users on 4/16. 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.
Thu 9/102:50 pm
PDX
- SIN
1 stop25h 50m
Singapore Airlines
Thu 9/249:00 am
SIN
- PDX
1 stop25h 50m
Singapore Airlines
Deal found 4/16![Singapore Airlines logo]()
$965
This oojo deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:00 am
PDX
- SIN
2 stops26h 00m
Multiple Airlines
Thu 11/199:00 am
SIN
- PDX
1 stop19h 22m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$977
This oojo deal was found by Cheapflights users on 4/16. 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.
Thu 10/12:50 pm
PDX
- SIN
1 stop25h 50m
Singapore Airlines
Sat 10/109:15 am
SIN
- PDX
1 stop22h 35m
Singapore Airlines
Deal found 4/16![Singapore Airlines logo]()
$985
This oojo deal was found by Cheapflights users on 4/16. 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 5/410:35 am
PDX
- SIN
2 stops31h 45m
Qatar Airways
Sun 5/101:30 am
SIN
- PDX
2 stops32h 06m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,001
This oojo deal was found by Cheapflights users on 4/17. 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.
Wed 4/228:45 am
PDX
- SIN
2 stops40h 30m
Qatar Airways
Fri 5/11:30 am
SIN
- PDX
2 stops32h 06m
Qatar Airways
Deal found 4/17![Qatar Airways logo]()
$1,041
This Justfly.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:57 am
PDX
- SIN
2 stops28h 48m
Qatar Airways
Thu 12/103:15 am
SIN
- PDX
2 stops27h 40m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$1,047
This oojo deal was found by Cheapflights users on 4/16. 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.
Wed 4/228:45 am
PDX
- SIN
2 stops33h 35m
Qatar Airways
Sun 5/37:40 pm
SIN
- PDX
2 stops37h 56m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,048
This FlightHub deal was found by Cheapflights users on 4/17. 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 9/1010:45 am
PDX
- SIN
2 stops43h 30m
Qatar Airways
Thu 9/247:40 pm
SIN
- PDX
2 stops39h 10m
Qatar Airways
Deal found 4/17![Qatar Airways logo]()
$1,049
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 April 21, 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 April 21, 2026.
This Justfly.com deal was found by Cheapflights users on 4/21. 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.
Sun 10/49:40 am
PDX
- SIN
2 stops39h 05m
Qatar Airways
Sun 10/113:15 am
SIN
- PDX
2 stops35h 55m
Qatar Airways
Deal found 4/21![Qatar Airways logo]()
$1,047
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:07 am
PDX
- SIN
1 stop20h 28m
Singapore Airlines
Mon 10/129:25 am
SIN
- PDX
2 stops26h 06m
Singapore Airlines
Deal found 4/21![Singapore Airlines logo]()
$1,117
This Singapore Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm
PDX
- SIN
1 stop25h 50m
Multiple Airlines
Thu 9/249:25 am
SIN
- PDX
2 stops27h 30m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,291
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:00 am
PDX
- SIN
2 stops39h 55m
EVA Air
Tue 6/93:20 pm
SIN
- PDX
2 stops32h 42m
EVA Air
Deal found 4/20![EVA Air logo]()
$1,358
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Mon 5/45:30 am
PDX
- SIN
1 stop22h 05m
United Airlines
Mon 5/119:00 am
SIN
- PDX
1 stop24h 46m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,627
This United Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 6/98:45 am
SIN
- PDX
1 stop29h 04m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,627
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:30 am
PDX
- SIN
1 stop22h 05m
United Airlines
Mon 6/18:35 pm
SIN
- PDX
2 stops31h 31m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,631
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Mon 5/185:30 am
PDX
- SIN
1 stop22h 05m
United Airlines
Mon 5/258:35 pm
SIN
- PDX
2 stops33h 38m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,631
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/155:30 am
PDX
- SIN
1 stop22h 05m
United Airlines
Mon 5/258:35 pm
SIN
- PDX
1 stop28h 45m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,727
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/165:35 pm
PDX
- SIN
1 stop34h 00m
United Airlines
Mon 6/18:35 pm
SIN
- PDX
2 stops36h 11m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,739
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated April 21, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated April 21, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/17. 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.
Wed 4/228:45 am
PDX
- SIN
2 stops40h 30m
Qatar Airways
Fri 5/11:30 am
SIN
- PDX
2 stops32h 06m
Qatar Airways
Deal found 4/17![Qatar Airways logo]()
$1,041
This oojo deal was found by Cheapflights users on 4/16. 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.
Wed 4/228:45 am
PDX
- SIN
2 stops33h 35m
Qatar Airways
Sun 5/37:40 pm
SIN
- PDX
2 stops37h 56m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,048
This oojo deal was found by Cheapflights users on 4/16. 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 5/410:35 am
PDX
- SIN
2 stops31h 45m
Qatar Airways
Sun 5/101:30 am
SIN
- PDX
2 stops32h 06m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,001
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1710:40 am
PDX
- SIN
2 stops51h 45m
Multiple Airlines
Sun 5/3111:10 pm
SIN
- PDX
2 stops39h 34m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,255
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com 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
Sun 5/316:25 pm
SIN
- PDX
2 stops44h 19m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,092
This Air Canada deal was found by Cheapflights users on 4/18. 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.
Mon 5/1810:10 am
PDX
- SIN
2 stops22h 45m
Multiple Airlines
Tue 6/97:00 am
SIN
- PDX
1 stop17h 30m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,293
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com 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
Sat 5/3011:10 pm
SIN
- PDX
2 stops39h 34m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,320
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 5/187:15 am
PDX
- SIN
2 stops55h 00m
Air Canada
Tue 6/97:00 am
SIN
- PDX
2 stops32h 50m
Air Canada
Deal found 4/17![Air Canada logo]()
$1,346
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 April 21, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Tue 5/55:37 pm
PDX
- SIN
3 stops52h 38m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Mon 5/49:54 am
PDX
- SIN
3 stops36h 21m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Wed 5/62:50 pm
PDX
- SIN
3 stops31h 25m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/310:51 am
PDX
- SIN
2 stops35h 24m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 10/210:30 am
PDX
- SIN
3 stops56h 45m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/95:51 pm
PDX
- SIN
2 stops38h 34m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Thu 5/72:50 pm
PDX
- SIN
3 stops36h 55m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$520
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 April 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $897 (oojo) |
One-way from | $313 (Kiwi.com) |
Popular in | December |
Cheapest in | May |
Average price | $958 |
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 April 21, 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
Sun 10/4
9:40 am-3:45 pm
2 stops39h 05m
Singapore Changi
Sun 10/11
3:15 am-12:10 am
2 stops35h 55m
$1,047
Quickest round-trip
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sun 10/4
6:07 am-5:35 pm
1 stop20h 28m
Singapore Changi
Mon 10/12
9:25 am-8:31 pm
2 stops26h 06m
$1,117
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Thu 9/10
2:50 pm-7:40 am
1 stop25h 50m
Singapore Changi
Thu 9/24
9:25 am-9:55 pm
2 stops27h 30m
$1,291
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/18
7:00 am-1:55 pm
2 stops39h 55m
Singapore Changi
Tue 6/9
3:20 pm-9:02 am
2 stops32h 42m
$1,358
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/4
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Mon 5/11
9:00 am-6:46 pm
1 stop24h 46m
$1,627
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/18
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Tue 6/9
8:45 am-10:49 pm
1 stop29h 04m
$1,627
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Tue 5/19
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Mon 6/1
8:35 pm-1:06 pm
2 stops31h 31m
$1,631
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Mon 5/18
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Mon 5/25
8:35 pm-3:13 pm
2 stops33h 38m
$1,631
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Fri 5/15
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Mon 5/25
8:35 pm-10:20 am
1 stop28h 45m
$1,727
PortlandSingapore
PDX - SIN
PDXSIN
Portland
Sat 5/16
5:35 pm-6:35 pm
1 stop34h 00m
Singapore Changi
Mon 6/1
8:35 pm-5:46 pm
2 stops36h 11m
$1,739
Showing 1-10 of 19 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 $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 April 21, 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.
Overall
8.4
Crew
8.7
Food
8.1
Entertainment
8.2
Boarding
8.5
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Crew
8.7
Food
8.1
Entertainment
8.2
Boarding
8.5
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Crew
8.7
Food
8.1
Entertainment
8.2
Boarding
8.5
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Crew
8.7
Food
8.1
Entertainment
8.2
Boarding
8.5
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Crew
8.7
Food
8.1
Entertainment
8.2
Boarding
8.5
Comfort
8.3
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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
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 April 21, 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 April 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$694 | Average$901 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$786 | Average$978 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$837 | Average$997 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,012 | Average$1,225 | FlexibilityNo cancel fee | On-time69% |