Find Cheap Flights from Ontario to Bangkok (ONT - TH1)

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Book cheap flights from Ontario to Bangkok (round-trip)

Airports
Origin
Ontario
$686
only
$686
Destination
Bangkok
$686
only
$686
Tue, Mar 13
ONT
BKK
26h 40m
Wed, Mar 28
BKK
ONT
23h 07m
Trip: 16 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.

SFO
SAN
Excellent 8.0

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

JAX
IAH
Good 7.6

N/A

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

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

EWR
PBI
Okay 4.6

Arrived on time

Distance between gates

Fri, Mar 23
ONT
BKK
30h 20m
Mon, Apr 2
BKK
ONT
21h 33m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 18
ONT
BKK
27h 10m
Wed, May 9
BKK
ONT
23h 07m
Trip: 22 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
DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

SJC
EWR
Mediocre 3.6

Arrived on time

Narrow seat

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.

NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

Tue, Apr 24
ONT
BKK
23h 35m
Tue, May 8
BKK
ONT
23h 07m
Trip: 15 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
PBI
Okay 4.6

Arrived on time

Distance between gates

SFO
SAN
Excellent 8.0

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

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.

EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

Mon, Apr 2
ONT
BKK
37h 40m
Fri, Apr 6
BKK
ONT
31h 07m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 3
ONT
BKK
27h 50m
Sun, Mar 11
BKK
ONT
64h 32m
$1759
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
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
BUD
Mediocre 2.6

Only card why?? No free food??

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).

LHR
DEN
Excellent 10.0

plane was not full so plenty of room to move around etc

LHR
DEN
Excellent 10.0

Everything

Mon, Nov 20
ONT
BKK
35h 10m
Mon, Dec 18
BKK
ONT
24h 22m
Trip: 29 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 22
ONT
BKK
24h 55m
Fri, Feb 9
BKK
ONT
23h 43m
Trip: 19 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
NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

JAX
IAH
Good 7.6

N/A

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

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

DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

Sat, Jan 6
ONT
BKK
24h 20m
Sat, Jan 27
BKK
ONT
36h 38m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 7
ONT
BKK
23h 40m
Sat, Mar 17
BKK
ONT
29h 27m
$1068
Trip: 10 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.

EWR
PBI
Okay 4.6

Arrived on time

Distance between gates

EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

Thu, Dec 7
ONT
BKK
37h 35m
Tue, Dec 26
BKK
ONT
27h 03m
$1112
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 5
ONT
BKK
40h 30m
Sat, Feb 17
BKK
ONT
27h 13m
$1072
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
SFO
SAN
Excellent 8.0

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

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.

NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

Sun, Dec 31
ONT
BKK
34h 10m
Mon, Jan 15
BKK
ONT
45h 51m
$1973
Trip: 16 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
LAS
LHR
Excellent 8.0

The flight was great. Business class is the way to go if it’s in your budget. However, the British Airways photos of business class does not quite reflect reality. It’s just a regular seat with more leg room.

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).

LHR
BOS
Okay 5.6

Were very nice and accomodating

Entertainment only worked sporadiaclly, crew tried toreaet it numerous times

LHR
DEN
Excellent 8.0

I liked the fact that the customer service on board was pretty spectacular & very clean bathrooms.

It was extremely warm throughout the flight and the seats weren’t too comfortable.

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.

*
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