PDX - SIN

S$ 550 Find Cheap Flights from Portland to Singapore – Compare and Save

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Everything you should know

Cheapest return flight
S$ 1,081
Typical prices: S$ 1,255-S$ 1,615
ANA
Thu 1-2Thu 15-2
PDX - SIN • 2 stops
Cheapest one-way flight
S$ 550
Typical prices: S$ 643-S$ 953
United Airlines
Wed 11-4
PDX - SIN • 2 stops
Direct flights
There are currently no direct flights between Portland and Singapore. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 12 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg S$ 1,267 (return)
Shortest trip • 18h 38m (one-way)
Insights
Insights
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We hope you enjoy your trip to Singapore!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Singapore (PDX-SIN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portland to Singapore

Mon, 1 Feb - Mon, 15 Feb
ANA Logo
07:00 - 00:45PDX  Portland-SIN Singapore Changi
25h 45m2 stops San Francisco Tokyo Narita
ANA Logo
22:20 - 18:26SIN  Singapore Changi-PDX Portland
36h 06m2 stops Tokyo Haneda San Francisco
S$ 1,081ANA
14 hours ago
Wed, 14 Apr - Wed, 28 Apr
ANA Logo
07:30 - 00:45PDX  Portland-SIN Singapore Changi
26h 15m2 stops San Francisco Tokyo Narita
ANA Logo
06:15 - 16:11SIN  Singapore Changi-PDX Portland
24h 56m2 stops Tokyo Narita San Francisco
S$ 1,089ANA
16 hours ago
Mon, 1 Mar - Tue, 16 Mar
United Airlines Logo
07:00 - 20:15PDX  Portland-SIN Singapore Changi
21h 15m1 stop San Francisco
United Airlines Logo
10:10 - 18:31SIN  Singapore Changi-PDX Portland
23h 21m1 stop San Francisco
S$ 1,090United Airlines
3+ days ago
Tue, 30 Mar - Tue, 13 Apr
ANA Logo
09:24 - 00:45PDX  Portland-SIN Singapore Changi
24h 21m2 stops San Francisco Tokyo Narita
ANA Logo
11:05 - 16:11SIN  Singapore Changi-PDX Portland
44h 06m2 stops Tokyo Haneda San Francisco
S$ 1,093ANA
14 hours ago
Mon, 1 Mar - Tue, 16 Mar
United Airlines Logo
07:00 - 20:15PDX  Portland-SIN Singapore Changi
21h 15m1 stop San Francisco
United Airlines Logo
22:20 - 21:03SIN  Singapore Changi-PDX Portland
37h 43m2 stops San Francisco Denver Intl
S$ 1,095United Airlines
3+ days ago
Thu, 21 Jan - Thu, 11 Feb
United Airlines Logo
05:30 - 20:15PDX  Portland-SIN Singapore Changi
22h 45m1 stop San Francisco
United Airlines Logo
06:35 - 18:16SIN  Singapore Changi-PDX Portland
27h 41m2 stops Tokyo Narita San Francisco
S$ 1,098United Airlines
1 day ago
Wed, 14 Apr - Wed, 28 Apr
United Airlines Logo
19:49 - 06:45PDX  Portland-SIN Singapore Changi
19h 56m1 stop San Francisco
United Airlines Logo
09:00 - 20:49SIN  Singapore Changi-PDX Portland
26h 49m2 stops San Francisco Denver Intl
S$ 1,101United Airlines
16 hours ago
Wed, 11 Nov - Mon, 23 Nov
Korean Air Logo
07:00 - 05:00PDX  Portland-SIN Singapore Changi
30h 00m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
22:30 - 17:11SIN  Singapore Changi-PDX Portland
34h 41m2 stops Incheon Intl Seattle/Tacoma Intl
S$ 1,106Korean Air
3 hours ago
Tue, 30 Mar - Thu, 15 Apr
United Airlines Logo
13:39 - 06:40PDX  Portland-SIN Singapore Changi
50h 01m2 stops San Francisco Tokyo Haneda
United Airlines Logo
09:00 - 12:25SIN  Singapore Changi-PDX Portland
18h 25m1 stop San Francisco
S$ 1,107United Airlines
14 hours ago
Mon, 1 Feb - Mon, 15 Feb
United Airlines Logo
19:19 - 06:55PDX  Portland-SIN Singapore Changi
43h 36m2 stops San Francisco Tokyo Haneda
United Airlines Logo
10:45 - 23:25SIN  Singapore Changi-PDX Portland
28h 40m2 stops Tokyo Haneda San Francisco
S$ 1,108United Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for Portland to Singapore flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Portland to Singapore?

Return flights from Portland to Singapore typically range from S$ 1,255 to S$ 1,615. The lowest price found in the past 5 days was S$ 1,081 on ANA.

What's the cheapest day of the week to fly from Portland to Singapore?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Portland to Singapore. It's 2% cheaper than the average day, while Saturday is the most expensive, with prices 11% higher.

What is the cheapest month to fly from Portland to Singapore?

•March is the cheapest month to fly from Portland to Singapore at S$ 1,208 return.
•December (S$ 1,665) and June (S$ 1,641) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 37% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Portland to Singapore the cheapest?

Flights from Portland to Singapore are cheapest 12 weeks before departure. Booking in this window typically costs about 24% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Portland to Singapore flights

Low season

June

Cheapest flight

S$ 550
Beat the crowds with an average 23% drop in travellers.
The most popular month to fly with an average 37% increase in travellers.
One-way flight from Portland to Singapore

When to book flights from Portland to Singapore

Are your dates flexible? Find out the best times to travel from Portland to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Portland to Singapore flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Portland to Singapore?

    Only Premium Economy Class is available on flights from Portland to Singapore.

  • How long is a flight from Portland to Singapore?

    A direct flight from Portland to Singapore takes 00m, covering 21,037 km.

  • Do I need a passport to fly from Portland to Singapore?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Portland to Singapore flight?

    Return flights from Portland to Singapore range from S$ 1,255 to S$ 1,615, with an average of S$ 1,395 over the past 12 months. Anything below S$ 1,255 counts as a good deal.

  • How expensive are last-minute Portland to Singapore flights?

    Last-minute fares on this route (booked within two weeks of departure) run 0% above the S$ 1,395 route average. Book 12 weeks before departure for the lowest fares.

  • How are flight prices from Portland to Singapore looking right now?

    One-way fares from Portland to Singapore are currently lower than usual. Average one-way flight prices are about S$ 586, which is 20% below the typical average for this route.

  • Which car hire options are available at Singapore Changi Airport (SIN)?

    Singapore Changi Airport (SIN) hosts 5 major car rental companies, with daily rates starting from around S$ 75 for economy cars. Top options include:

    • Avis
    • Sixt
    • Thrifty
    • Hertz
    • Europcar

  • Which airports can I use when flying from Portland to Singapore?

    Flights from Portland to Singapore usually depart from Portland (PDX) and arrive at Singapore Changi (SIN).

  • Which airports do connecting flights from Portland to Singapore pass through?

    One-stop flights from Portland to Singapore most commonly connect through:

    • Vancouver Intl (YVR) – 48% of one-stop connections
    • San Francisco (SFO) – 43% of one-stop connections
    • Seattle/Tacoma Intl (SEA) – 8% of one-stop connections
    • Los Angeles (LAX) – 1% of one-stop connections

  • Can I save money by using flexible dates for flights from Portland to Singapore?

    Yes. Flexible dates can save you up to 12% on flights from Portland to Singapore. Sunday is the cheapest departure day at S$ 1,377 return on average, while Saturday is the most expensive at S$ 1,551, a difference of S$ 174.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different stopover airport from Portland to Singapore?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time of 18h 38m, compared to 19h 50m via Seattle/Tacoma Intl (SEA) and 20h 38m via San Francisco (SFO).

  • What is the time difference between Portland and Singapore?

    Singapore is 15 hours ahead of Portland (Singapore Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Singapore?

    Some of the most popular sights in Singapore are Sentosa, North Bridge Road, and Marina Square. These are among the most viewed places in Singapore on KAYAK.

Your guide to booking Portland to Singapore flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Saturday. On this route, Sunday flights average S$ 1,377, which is about S$ 174 less than Saturday fares (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 12 weeks before you fly. On this route, that window historically saves about 24% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Portland to Singapore trip for March. Fares historically average S$ 1,208 return in that month – typically S$ 457 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Singapore Changi Airport.

    • Crowne Plaza Changi Airport by IHG
    • Changi Transit Hotel Terminal 1
    • The Haven by Jetquay

More options for your flight from Portland to Singapore

Complete your trip to Singapore with a hotel stay or car hire