$415+ Cheap flights from Portland (PDX) to Singapore
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Oct 7 — Oct 141
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
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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
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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 September 7, 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 September 7, 2026.
This Air Canada deal was found by Cheapflights users on 9/3. 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.
Tue 11/33:15 pm -
1 stop23h 45m
Tue 11/178:40 am -
1 stop16h 46m
Deal found 9/3![Air Canada logo]()
$895
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:10 am -
1 stop28h 05m
Thu 10/17:00 am -
1 stop22h 46m
Deal found 9/4![Air Canada logo]()
$905
This Air Canada deal was found by Cheapflights users on 9/5. 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.
Tue 10/137:45 pm -
1 stop18h 30m
Tue 10/207:00 am -
1 stop27h 11m
Deal found 9/5![Air Canada logo]()
$951
This Air Canada deal was found by Cheapflights users on 9/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:15 pm -
1 stop23h 45m
Sat 11/288:40 am -
1 stop16h 46m
Deal found 9/2![Air Canada logo]()
$970
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 September 7, 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 September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/237:27 pm -
1 stop19h 48m
Wed 9/308:35 pm -
1 stop28h 35m
Deal found 9/4![United Airlines logo]()
$1,147
This Singapore Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 12/19:50 pm -
1 stop29h 15m
Fri 12/189:05 am -
1 stop22h 26m
Deal found 9/7![Multiple Airlines logo]()
$1,192
This SWISS deal was found by Cheapflights users on 9/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/161:39 pm -
2 stops48h 11m
Sun 1/3111:55 pm -
3 stops62h 48m
Deal found 9/2![SWISS logo]()
$1,790
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 11/75:30 am -
1 stop22h 45m
Sat 11/1410:20 pm -
1 stop27h 58m
Deal found 9/3![United Airlines logo]()
$1,147
This Qatar Airways deal was found by Cheapflights users on 9/2. 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 12/239:35 pm -
2 stops43h 10m
Sat 1/210:15 am -
2 stops45h 05m
Deal found 9/2![Qatar Airways logo]()
$2,353
This Delta deal was found by Cheapflights users on 9/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/262:42 pm -
2 stops37h 43m
Sun 1/310:30 pm -
2 stops34h 29m
Deal found 9/2![Delta logo]()
$2,377
This China Airlines deal was found by Cheapflights users on 9/6. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:25 pm -
3 stops27h 40m
Mon 11/232:25 pm -
2 stops23h 29m
Deal found 9/6![Multiple Airlines logo]()
$1,251
This United Airlines deal was found by Cheapflights users on 9/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/211:39 pm -
1 stop26h 21m
Thu 2/1110:10 am -
1 stop24h 21m
Deal found 9/6![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 11/73:40 pm -
1 stop24h 20m
Fri 11/1310:20 pm -
1 stop18h 24m
Deal found 9/3![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 9/2. 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 2/17:30 am -
2 stops25h 25m
Mon 2/1510:20 pm -
1 stop18h 34m
Deal found 9/2![United Airlines logo]()
$1,159
This SWISS deal was found by Cheapflights users on 9/4. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/118:46 am -
2 stops41h 19m
Wed 2/2412:05 am -
3 stops39h 07m
Deal found 9/4![SWISS logo]()
$2,051
Last-minute flights from Portland to SingaporeDiscover last-minute flight deals from Portland to Singapore. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Singapore. Data last updated September 7, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 9/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:30 pm -
2 stops32h 00m
Tue 9/297:00 am -
1 stop27h 11m
Deal found 9/6![Air Canada logo]()
$986
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:10 am -
1 stop28h 05m
Thu 10/17:00 am -
1 stop22h 46m
Deal found 9/4![Air Canada logo]()
$905
This Air Canada deal was found by Cheapflights users on 9/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:10 am -
1 stop23h 20m
Wed 9/308:10 am -
2 stops21h 36m
Deal found 9/4![Multiple Airlines logo]()
$991
This Air Canada deal was found by Cheapflights users on 9/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:59 pm -
2 stops38h 16m
Mon 10/269:00 pm -
2 stops32h 41m
Deal found 9/4![Multiple Airlines logo]()
$990
This Air Canada deal was found by Cheapflights users on 9/5. 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.
Tue 10/137:45 pm -
1 stop18h 30m
Tue 10/207:00 am -
1 stop27h 11m
Deal found 9/5![Air Canada logo]()
$951
This Air Canada deal was found by Cheapflights users on 9/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:30 pm -
2 stops38h 45m
Sat 10/247:00 am -
1 stop22h 46m
Deal found 9/2![Air Canada logo]()
$984
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 September 7, 2026.
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/305:37 pm -
1 stop33h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/245:32 pm -
1 stop33h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 1/282:30 pm -
1 stop36h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$420
This oojo deal was found by Cheapflights users on 9/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/249:59 pm -
2 stops44h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Philippine Airlines logo]()
$431
This SmartFares deal was found by Cheapflights users on 9/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/225:35 pm -
2 stops24h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$436
This Expedia deal was found by Cheapflights users on 9/7. 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 11/261:49 pm -
2 stops41h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Fri 1/292:30 pm -
1 stop36h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 1/146:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Wed 1/136:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Mon 1/116:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 1/126:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$452
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $895 (Air Canada) |
One-way from | $415 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,046 |
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 7,457,451 searches. Data last updated September 7, 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
Sat 1/30
2:46 pm-7:05 pm
1 stop36h 19m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$415
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Wed 2/24
5:32 pm-7:05 pm
1 stop33h 33m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$417
Quickest round-trip
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 11/26
7:10 pm-7:00 am
1 stop19h 50m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$464
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Mon 2/22
5:32 pm-7:05 pm
1 stop33h 33m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$480
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Sun 1/31
8:30 am-8:45 am
2 stops32h 15m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$521
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 9/24
10:10 am-5:15 am
1 stop28h 05m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$543
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 11/26
6:29 pm-9:55 pm
3 stops59h 26m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$549
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 1/15
7:30 am-8:45 am
2 stops33h 15m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$595
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Fri 1/29
5:32 pm-5:15 pm
3 stops31h 43m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$604
PortlandSingapore
PDX Portland - SIN Singapore Changi
PDXSIN
Portland
Thu 9/24
12:24 pm-11:45 am
3 stops32h 21m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$614
Showing 1-10 of 22 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 $904). Flying from Portland to Singapore in December is currently the most expensive (average of $1,616). 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 September 7, 2026.
Read reviews from past customers who have flown Singapore Airlines,United Airlines, andAir Canada from Portland to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.1
Comfort
8.0
Food
7.8
Overall
8.2
Boarding
8.3
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Comfort
8.0
Food
7.8
Overall
8.2
Boarding
8.3
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Comfort
8.0
Food
7.8
Overall
8.2
Boarding
8.3
Crew
8.6
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Entertainment
8.1
Comfort
8.0
Food
7.8
Overall
8.2
Boarding
8.3
Crew
8.6
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Portland to Singapore
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Complete your trip
Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.
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 September 7, 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$735 | Average$1,199 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$789 | Average$1,002 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,024 | Average$1,212 | FlexibilityNo cancel fee | On-time69% |