Find Cheap Flights from Portland to Singapore Changi (PDX - SIN)

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Good to Know

Low Season:
October
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
7%
expected price increase
Average Price:
$1419
(avg. price over the last 2 weeks)
Good Deal:
$858
or less (round trip)

When to Book Flights from Portland to Singapore Changi

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $858 or less.
The cheapest flight from Portland to Singapore Changi was found 1 day before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 23% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Portland to Singapore Changi Flights

How long does a flight from Portland to Singapore Changi take?
An average nonstop flight takes 20h 40m, covering a distance of 8128 miles.
Which airlines provide the cheapest flights from Portland to Singapore Changi?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($587), United ($649) and ANA ($766).
Do I need a passport to fly between Portland and Singapore Changi?
Yes.

Book cheap flights from Portland to Singapore Changi (round-trip)

Airports
Origin
Portland
$587
only
$587
Destination
Singapore
$587
only
$587
Wed, Mar 14
PDX
SIN
45h 00m
Mon, Mar 26
SIN
PDX
37h 39m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 9
PDX
SIN
21h 50m
Mon, Apr 23
SIN
PDX
22h 30m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

Wed, Aug 15
PDX
SIN
25h 15m
Thu, Aug 23
SIN
PDX
26h 33m
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3146 reviews
Overall
8.8
Boarding
8.9
Comfort
8.5
Crew
9.1
Entertainment
8.4
Food
8.3
KUL
NRT
Excellent 8.0

Very nice, new plane. Clean bathrooms. Good amount of legroom. Polite staff. Easy check-in process. Kid-friendly. God entertainment system.

Limited entertainment options for kids.

BKK
HND
Excellent 8.3

It was alright.

Prepare to wake up with neck pain.

NRT
JFK
Excellent 10.0

Friendly crew, delicious meals, comfortable seats. Would fly no other airline to Japan.

LAX
HND
Good 7.2

Hot food was good. Crew were friendly and helpful. They got me a window flight even though it wasnt on my ticket. Leg room was pretty good. Bathroom had a lot of amenities.

The seats didn't recline at all. I slept horribly even though I'm pretty good at sleeping on planes.

KUL
HND
Excellent 8.8

The dinner was served too late, not right after take off. Also, the portions were way too small.

Thu, Apr 5
PDX
SIN
42h 20m
Mon, Apr 16
SIN
PDX
47h 10m
Trip: 12 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4578 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
PVG
KMG
Okay 5.6

We stopped in NAO (Nanchong) for about an hour and it was quite a sketch experience.

SVO
PVG
Excellent 8.3

Very good seats

Very few movies it the list

PVG
NGO
Excellent 8.3

clean plane, good crew, good food.

The smaller plane on this flight was being pushed around by the hough winds.

CTU
KWL
Excellent 10.0

Airline personnel very helpful. Plane was clean.

Finding China Eastern in very large terminal. Almost no signs in English.

PVG
JFK
Good 6.3

good price. on time. reasonably comfortable seats.

unannounced gate change that almost led to our missing the flight. mediocre food and non-existent entertainment.

Wed, Aug 15
PDX
SIN
33h 55m
Wed, Aug 22
SIN
PDX
49h 15m
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2306 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

SIN
CGK
Okay 4.0

The flights were always late causing us to miss a connection. Also when purchasing the ticket I was not informed of two extra stops that only showed up when I checked in.

MAA
SIN
Good 7.6

The seats and there is not much leg room

JFK
FRA
Good 7.6

Headphones didn’t work entirely for listening to movies. Had to manually hold it in.

SIN
LAX
Good 7.6

There was not much leg room in the seatings

Fri, Mar 2
PDX
SIN
23h 05m
Mon, Mar 12
SIN
PDX
47h 28m
$1015
Trip: 10 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 3762 reviews
Overall
8.9
Boarding
8.9
Comfort
8.7
Crew
9.1
Entertainment
8.7
Food
8.5
JFK
ICN
Okay 4.0

Nothing but headaches and made me throw out my $100 e cigarette that I checked under the plane half way through my trip from new york to vietnam. And they made me run all over the airport to address the situation only to find out once I arrived that they threw it out without my knowledge or permission

JFK
ICN
Excellent 10.0

Good is in Vietnam finish

ORD
ICN
Excellent 8.0

Long flight....seats were comfy for economy....nice crew....good overall experience....entertainment was okay for its selection on movies and music.

Food got me sick the next day....would have been great if wifi was available

ICN
MNL
Good 6.3

Everything was going well until our bags didn’t show up at our final destination. Big no-no. Just ruined the otherwise pleasant experience

ORD
ICN
Excellent 10.0

My flight to Seoul was originally through Air Canada but my flight was cancelled due to weather in Toronto. So I was rebooked with Korean Air and I loved every minute of my flight. The staff are so talented speaking flawlessly in Korean and English. They made me feel comfortable for the whole 14 hours. I’d definitely fly with them again.

Fri, Feb 23
PDX
SIN
20h 40m
Wed, Mar 7
SIN
PDX
27h 26m
$1039
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

Wed, Mar 28
PDX
SIN
32h 45m
Tue, Apr 3
SIN
PDX
31h 45m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 8
PDX
SIN
22h 45m
Tue, Jun 26
SIN
PDX
22h 22m
Trip: 50 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Aug 13
PDX
SIN
27h 55m
Thu, Aug 23
SIN
PDX
37h 55m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

Thu, May 10
PDX
SIN
28h 15m
Thu, May 17
SIN
PDX
22h 22m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Aug 14
PDX
SIN
26h 15m
Thu, Aug 23
SIN
PDX
32h 08m
Trip: 10 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3146 reviews
Overall
8.8
Boarding
8.9
Comfort
8.5
Crew
9.1
Entertainment
8.4
Food
8.3
KUL
HND
Excellent 8.8

The dinner was served too late, not right after take off. Also, the portions were way too small.

BKK
HND
Okay 4.6

The seat was nice

Service was extremely slow, it took almost two hours just to get offered a drink. There wasn't any offering after boarding and I had to ask just to get water. The food was quite bad, normally I would choose the Japanese meal, however, both the Japanese and International options were poor. The staff seemed unorganized and did not follow a set protocol.

NRT
JFK
Excellent 10.0

Friendly crew, delicious meals, comfortable seats. Would fly no other airline to Japan.

HND
GMP
Good 6.4

Prepackaged sandwiches were so so. Crew were friendly and helpful. Leg room was pretty good. Bathroom had a lot of amenities.

The seats are kind of flat.

NRT
ORD
Excellent 10.0

The crew are so courteous and helpful.

Wed, Aug 15
PDX
SIN
33h 55m
Sun, Aug 26
SIN
PDX
30h 34m
Trip: 12 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2306 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SFO
SIN
Excellent 10.0

The seats seem to have more leg room, food was actually good, and the staff was delightful.

It was a 17 hour flight, but they made it bearable.

LAX
NRT
Excellent 9.6

Everything

Lost our luggage that full with our winter clothing for the trip singapore airlines delivered to our hotel the next day and compensate us ¥jpn 12000

SIN
CGK
Okay 4.0

The flights were always late causing us to miss a connection. Also when purchasing the ticket I was not informed of two extra stops that only showed up when I checked in.

SIN
LAX
Good 7.6

There was not much leg room in the seatings

SGN
SIN
Good 6.3

Nothing

My flight was delayed by 2 hours so I missed my connecting flight in Singapore. There was a huge queue of people who missed their connecting flight cos of an accident in the runway. The airline did nothing to prepare for this situation. It took hours to get another flight organised, communication was non existent and refreshments took ages to come. Airline didn't help with finding a hotel for stranded passengers.

Sun, Aug 12
PDX
SIN
28h 55m
Wed, Aug 22
SIN
PDX
23h 58m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

Wed, Mar 14
PDX
SIN
55h 50m
Sun, Mar 25
SIN
PDX
49h 48m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Aug 15
PDX
SIN
25h 15m
Wed, Aug 22
SIN
PDX
26h 33m
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3146 reviews
Overall
8.8
Boarding
8.9
Comfort
8.5
Crew
9.1
Entertainment
8.4
Food
8.3
MNL
NRT
Excellent 10.0

The crew are so courteous and helpful.

NRT
JFK
Excellent 10.0

Friendly crew, delicious meals, comfortable seats. Would fly no other airline to Japan.

BKK
HND
Okay 4.6

The seat was nice

Service was extremely slow, it took almost two hours just to get offered a drink. There wasn't any offering after boarding and I had to ask just to get water. The food was quite bad, normally I would choose the Japanese meal, however, both the Japanese and International options were poor. The staff seemed unorganized and did not follow a set protocol.

HND
GMP
Good 6.4

Prepackaged sandwiches were so so. Crew were friendly and helpful. Leg room was pretty good. Bathroom had a lot of amenities.

The seats are kind of flat.

HND
LAX
Excellent 9.6

Been flying with ANA ever since I started living in Japan, and it has always been a pleasure. No complaints whatsoever.

No problems.

Mon, Apr 9
PDX
SIN
33h 55m
Sun, Apr 22
SIN
PDX
32h 05m
Trip: 14 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2306 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SFO
SIN
Excellent 8.0

Premium economy

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

MAA
SIN
Good 7.6

The seats and there is not much leg room

SIN
DPS
Excellent 10.0

More leg room than other airlines, superb service and excellent food!

SIN
LAX
Good 7.6

There was not much leg room in the seatings

Sun, Aug 12
PDX
SIN
28h 55m
Thu, Aug 23
SIN
PDX
37h 55m
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

Tue, Apr 3
PDX
SIN
33h 21m
Sun, Apr 15
SIN
PDX
61h 46m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 16
PDX
SIN
33h 55m
Thu, Aug 23
SIN
PDX
30h 50m
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2306 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SIN
LAX
Excellent 9.6

SQ did a great job again. I plan to fly them in the future.

My only criticism is that the flight attendants didn’t pass through the cabin with water during the 9 hour flight.

LAX
ICN
Good 7.0

Loved the hot towel service

Entertainment could be better, however there were a few new and Oscar nominated movies available. Personal air conditioning would be great, I was too hot the entire flight

MAA
SIN
Good 7.6

The seats and there is not much leg room

LAX
NRT
Excellent 9.6

Everything

Lost our luggage that full with our winter clothing for the trip singapore airlines delivered to our hotel the next day and compensate us ¥jpn 12000

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

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Portland to Singapore Changi Flight Information

Flights Arrive in Singapore Changi
Flights Depart from Portland
Flight Price $587
Distance 8128 miles
Airlines United, ANA, China Eastern, Singapore Airlines, Korean Air, Delta
*
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Here's why:

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.