Find Cheap Flights from Ontario to Singapore Changi (ONT - SIN)

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When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $816 or less.

FAQs for Booking Ontario to Singapore Changi Flights

How long does a flight from Ontario to Singapore Changi take?
An average nonstop flight takes 19h 30m, covering a distance of 8796 miles.
Which airlines provide the cheapest flights from Ontario to Singapore Changi?
In the past 3 days, the cheapest round-trip tickets were found on United ($851) and British Airways ($1750)
Do I need a passport to fly between Ontario and Singapore Changi?
Yes.

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

Airports
Origin
Ontario
$851
only
$851
Destination
Singapore
$851
only
$851
Wed, Jan 10
ONT
SIN
19h 40m
Mon, Jan 15
SIN
ONT
27h 00m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

HNL
LAX
Okay 5.6

Flight was delayed over 8 hours due to "mechanical issues." Went from a nice 757 to a 737 which was a little more cramped.

Wed, Jan 31
ONT
SIN
23h 35m
Mon, Feb 12
SIN
ONT
17h 48m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

LAX
ORD
Good 7.3

The crew was excellent

The seating space is to small

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

EWR
PBI
Okay 4.6

Arrived on time

Distance between gates

Sat, Dec 2
ONT
SIN
37h 00m
Sun, Dec 10
SIN
ONT
35h 20m
$1750
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13331 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

CPT
LHR
Good 6.6

Your staff were truly excellent, helpful and engaging.

My TV worked only intermittently and I therefore could not relax and enjoy the entertainment...

ORD
LHR
Good 6.6

Excellent vegan meal selection!

No Wifi, average movie selection, cramped space, 2+ hour delay (half of which was spent sitting on plane).

VIE
LHR
Excellent 8.0

punctuality

trapped on this plane for over 3 hours and they can't even spring for a lousy soda and bag of crisps.

LHR
HYD
Excellent 8.0

The food on the flight was good.

The wheelchair assistance was very bad as no one turned up with a wheelchair. The airways really need to improve their service and make sure that whey they offering wheelchair assistance they in fact do it. This has happened serveral times that no one turned up at the London airport.

Tue, Mar 13
ONT
SIN
20h 30m
Wed, Mar 21
SIN
ONT
20h 57m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

HNL
LAX
Okay 5.6

Flight was delayed over 8 hours due to "mechanical issues." Went from a nice 757 to a 737 which was a little more cramped.

FAT
DEN
Excellent 8.0

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Mon, Apr 23
ONT
SIN
19h 30m
Mon, May 28
SIN
ONT
18h 22m
Trip: 36 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

FAT
DEN
Excellent 8.0

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

Mon, Apr 30
ONT
SIN
23h 15m
Mon, Jun 4
SIN
ONT
22h 12m
Trip: 36 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

LAX
ORD
Good 7.3

The crew was excellent

The seating space is to small

HNL
LAX
Okay 5.6

Flight was delayed over 8 hours due to "mechanical issues." Went from a nice 757 to a 737 which was a little more cramped.

Tue, May 1
ONT
SIN
19h 30m
Mon, Jun 4
SIN
ONT
22h 12m
Trip: 35 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
FAT
DEN
Excellent 8.0

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

LAX
ORD
Good 7.3

The crew was excellent

The seating space is to small

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

Sun, Nov 19
ONT
SIN
42h 15m
Mon, Dec 25
SIN
ONT
17h 58m
Trip: 37 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

EWR
PBI
Okay 4.6

Arrived on time

Distance between gates

DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

Mon, Dec 4
ONT
SIN
20h 20m
Wed, Dec 6
SIN
ONT
17h 47m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

LAX
ORD
Good 7.3

The crew was excellent

The seating space is to small

Tue, Feb 6
ONT
SIN
23h 35m
Fri, Feb 16
SIN
ONT
18h 07m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
HNL
LAX
Okay 5.6

Flight was delayed over 8 hours due to "mechanical issues." Went from a nice 757 to a 737 which was a little more cramped.

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

FAT
DEN
Excellent 8.0

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

Mon, Dec 25
ONT
SIN
23h 27m
Fri, Dec 29
SIN
ONT
22h 03m
$1360
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

FAT
DEN
Excellent 8.0

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

Heavy Hispanic woman got ill and I was really worried she might pass away because she kept laying forward asleep or passed out on the back of the seat in front of her. Finally they found a doctor who was bilingual and he took great care of her. So bravo for that UA!

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

Mon, Dec 18
ONT
SIN
20h 20m
Sat, Dec 30
SIN
ONT
27h 16m
$1945
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

HNL
LAX
Okay 5.6

Flight was delayed over 8 hours due to "mechanical issues." Went from a nice 757 to a 737 which was a little more cramped.

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

*
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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.