$493+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Singapore with Cheapflights
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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
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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
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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 6, 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 6, 2026.
This CheapTickets deal was found by Cheapflights users on 8/2. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:03 am -
2 stops25h 52m
Wed 9/237:30 am -
2 stops24h 20m
Deal found 8/2![Multiple Airlines logo]()
$925
This Ovago deal was found by Cheapflights users on 8/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:18 am -
2 stops28h 07m
Mon 10/2611:00 pm -
2 stops32h 34m
Deal found 8/5![Multiple Airlines logo]()
$943
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 Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:47 am -
2 stops31h 13m
Wed 9/237:30 am -
2 stops31h 24m
Deal found 8/5![Delta logo]()
$1,005
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 8/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:05 am -
2 stops33h 40m
Mon 11/163:15 am -
2 stops34h 40m
Deal found 8/4![Qatar Airways logo]()
$1,012
This Korean Air deal was found by Cheapflights users on 8/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:59 pm -
2 stops42h 01m
Wed 10/211:25 am -
2 stops30h 39m
Deal found 8/5![Korean Air logo]()
$1,017
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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.
Wed 9/26:35 am -
2 stops32h 35m
Wed 9/98:05 am -
2 stops20h 32m
Deal found 8/3![Japan Airlines logo]()
$1,018
This oojo deal was found by Cheapflights users on 8/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:09 am -
2 stops41h 36m
Thu 10/13:15 am -
2 stops28h 35m
Deal found 8/2![Qatar Airways logo]()
$1,019
This Justfly.com deal was found by Cheapflights users on 8/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:09 am -
2 stops39h 46m
Sun 11/83:15 am -
2 stops33h 35m
Deal found 8/5![Qatar Airways logo]()
$1,022
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:31 am -
2 stops32h 19m
Wed 10/213:15 am -
2 stops28h 35m
Deal found 8/6![Multiple Airlines logo]()
$1,023
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 6, 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 6, 2026.
This Korean Air deal was found by Cheapflights users on 8/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/16:30 am -
2 stops30h 30m
Wed 3/1010:40 am -
2 stops24h 48m
Deal found 8/3![Korean Air logo]()
$1,010
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/301:03 pm -
1 stop26h 12m
Sun 9/68:45 am -
1 stop21h 02m
Deal found 8/2![United Airlines logo]()
$1,146
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.
Wed 10/146:45 am -
2 stops31h 15m
Sat 10/247:30 am -
2 stops24h 34m
Deal found 8/6![Korean Air logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:10 am -
1 stop22h 05m
Mon 11/910:10 am -
1 stop24h 14m
Deal found 8/2![United Airlines logo]()
$1,146
This Korean Air deal was found by Cheapflights users on 8/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:38 pm -
2 stops34h 47m
Thu 12/171:35 am -
2 stops31h 29m
Deal found 8/5![Korean Air logo]()
$1,138
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 9/19:00 am -
1 stop30h 15m
Mon 9/78:45 am -
1 stop27h 14m
Deal found 8/4![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:30 am -
1 stop22h 05m
Fri 10/238:45 am -
1 stop24h 46m
Deal found 8/2![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/173:43 pm -
1 stop23h 32m
Tue 9/18:45 am -
1 stop24h 34m
Deal found 8/4![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:00 am -
1 stop30h 15m
Wed 9/98:45 am -
1 stop27h 02m
Deal found 8/3![United Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:23 pm -
1 stop23h 52m
Thu 10/228:45 am -
1 stop20h 42m
Deal found 8/5![United Airlines logo]()
$1,146
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated August 6, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:45 pm -
2 stops27h 45m
Tue 9/18:50 pm -
2 stops33h 01m
Deal found 8/3![Air Canada logo]()
$1,066
This oojo deal was found by Cheapflights users on 8/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:09 am -
2 stops41h 36m
Thu 10/13:15 am -
2 stops28h 35m
Deal found 8/2![Qatar Airways logo]()
$1,019
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:03 am -
2 stops32h 07m
Mon 9/79:50 pm -
2 stops41h 09m
Deal found 8/4![Japan Airlines logo]()
$1,052
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 Cheapflightsfares deal was found by Cheapflights users on 8/3. 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.
Wed 9/26:35 am -
2 stops32h 35m
Wed 9/98:05 am -
2 stops20h 32m
Deal found 8/3![Japan Airlines logo]()
$1,018
This Air Canada deal was found by Cheapflights users on 8/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:30 pm -
2 stops28h 45m
Tue 9/87:00 am -
1 stop27h 11m
Deal found 8/5![Air Canada logo]()
$1,064
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:47 am -
2 stops31h 13m
Wed 9/237:30 am -
2 stops31h 24m
Deal found 8/5![Delta logo]()
$1,005
This CheapTickets deal was found by Cheapflights users on 8/2. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:03 am -
2 stops25h 52m
Wed 9/237:30 am -
2 stops24h 20m
Deal found 8/2![Multiple Airlines logo]()
$925
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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.
Wed 9/166:08 am -
2 stops31h 52m
Tue 9/221:25 am -
2 stops30h 12m
Deal found 8/3![Korean Air logo]()
$1,010
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:48 am -
2 stops36h 57m
Wed 9/233:15 am -
2 stops28h 35m
Deal found 8/4![Qatar Airways logo]()
$1,012
This FlightHub deal was found by Cheapflights users on 8/5. 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.
Sat 9/2610:45 am -
2 stops38h 00m
Sun 10/43:15 am -
2 stops34h 47m
Deal found 8/5![Qatar Airways logo]()
$1,061
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 6, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Travelocity deal was found by Cheapflights users on 8/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/273:40 pm -
2 stops29h 30m
Deal found 8/3![Multiple Airlines logo]()
$493
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.
Sat 9/52:40 pm -
2 stops39h 50m
Deal found 8/6![Multiple Airlines logo]()
$495
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 Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 10/1411:03 am -
3 stops26h 12m
Deal found 8/4![Multiple Airlines logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
2 stops35h 40m
Deal found 8/2![Multiple Airlines logo]()
$519
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/262:30 pm -
2 stops35h 05m
Deal found 8/3![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:02 am -
3 stops45h 53m
Deal found 8/3![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/282:30 pm -
2 stops35h 05m
Deal found 8/3![Multiple Airlines logo]()
$527
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $925 (CheapTickets) |
One-way from | $487 (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 6, 2026.
Use the filters below to find and compare flights from Portland to Singapore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 2/1
6:30 am-5:00 am
2 stops30h 30m
Singapore Changi
Wed 3/10
10:40 am-7:28 pm
2 stops24h 48m
$1,010
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 10/14
6:45 am-5:00 am
2 stops31h 15m
Singapore Changi
Sat 10/24
7:30 am-5:04 pm
2 stops24h 34m
$1,024
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 12/2
5:38 pm-8:25 pm
2 stops34h 47m
Singapore Changi
Thu 12/17
1:35 am-5:04 pm
2 stops31h 29m
$1,138
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 8/30
1:03 pm-6:15 am
1 stop26h 12m
Singapore Changi
Sun 9/6
8:45 am-2:47 pm
1 stop21h 02m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 10/26
7:10 am-8:15 pm
1 stop22h 05m
Singapore Changi
Mon 11/9
10:10 am-6:24 pm
1 stop24h 14m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Tue 9/1
9:00 am-6:15 am
1 stop30h 15m
Singapore Changi
Mon 9/7
8:45 am-8:59 pm
1 stop27h 14m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 10/19
5:30 am-6:35 pm
1 stop22h 05m
Singapore Changi
Fri 10/23
8:45 am-6:31 pm
1 stop24h 46m
$1,146
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 8/17
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
Wed 9/2
9:00 am-6:15 am
1 stop30h 15m
Singapore Changi
Wed 9/9
8:45 am-8:47 pm
1 stop27h 02m
$1,146
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 10/18
3:23 pm-6:15 am
1 stop23h 52m
Singapore Changi
Thu 10/22
8:45 am-2:27 pm
1 stop20h 42m
$1,146
Showing 1-10 of 18 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.
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 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Singapore
Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated August 6, 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.
Comfort
8.0
Crew
8.6
Boarding
8.3
Overall
8.2
Entertainment
8.1
Food
7.8
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Comfort
8.0
Crew
8.6
Boarding
8.3
Overall
8.2
Entertainment
8.1
Food
7.8
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Comfort
8.0
Crew
8.6
Boarding
8.3
Overall
8.2
Entertainment
8.1
Food
7.8
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Comfort
8.0
Crew
8.6
Boarding
8.3
Overall
8.2
Entertainment
8.1
Food
7.8
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.
Alternative routes
Complete your trip
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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 August 6, 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 August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$731 | Average$1,077 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$789 | Average$996 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,024 | Average$1,201 | FlexibilityNo cancel fee | On-time69% |