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Denver International to Ontario Flight Information

Flights Arrive in Ontario
Flights Depart from Denver International
Flight Price $315
Airlines Delta, United, American Airlines, WestJet, Porter Airlines, Air Canada

Book cheap flights from Denver International to Ontario (round-trip)

Airports
Origin
Denver
$315
only
$315
Destination
Hamilton
$413
only
$413
Ottawa
$315
only
$315
Toronto
$347
only
$347
$540
only
$540
Wed, Nov 14
DEN
Denver International
YOW
Ottawa
11h 59m
Wed, Nov 21
YOW
Ottawa
DEN
Denver International
8h 50m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,359 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
LAX
SYD
Mediocre 2.0

They lost my luggage & made me miss my connecting flight

ATL
MCO
Excellent 10.0

Television

No drinks or snacks

ATL
CLT
Excellent 8.6

Video access

Too hot, too crowded

ORD
CVG
Good 6.0

Short flight

Flight attendant was not willing to go above and beyond as he stated he would. My husband asked for a coke and the flight attendant told him he could only get water.

AUS
ATL
Excellent 8.6

love that Delta is now giving out Kind bars. Thanks!

Thu, Oct 25
DEN
Denver International
YOW
Ottawa
6h 05m
Tue, Oct 30
YOW
Ottawa
DEN
Denver International
6h 08m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 59,500 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ZRH
IAD
Excellent 9.6

Very nice FLY and fantastic weather. No turbulence THAT all. UNITED CAPITAN AND CREW, nice. Thanks to GOD a nice fly in ALL aspects.

To be honest, everything was OK.

IAH
EWR
Mediocre 2.0

Lounge

Delayed flight which kept pushing back for more then 5 hours. Got booked on the next flight got middle seat. Flight attendant was rude and short with people. Not very personable. Plane was so hot everyone was sweating.

ATL
ORD
Okay 4.3

It got us to London. My bags were quickly available.

The seats were SO. UNCOMFORTABLE. I didn't sleep at all and have a headache because of them. Absolutely atrocious. The food was meh. One of the flight attendants was so rude I dreaded every time she headed over. I'll be flying with Delta in the future.

LGA
IAD
Excellent 8.0

Smoothie landing

Only one snack

DEN
LGA
Excellent 9.0

The flight attendant was super awesome. She was personable and had a great attitude. I didnt get her name, but she was by far the best! Blonde lady, smelled wonderful, very refreshing and funny conversation...(Ua1412 to LaGuardia) yeah yeah! Amazing!

I wanted the salami and cheese crackers but the flight wasn’t given any, so I chose the veggie smash/pita bread/quinoa/almond thing. Not too bad, but definitely no match for salami and cheese crackers. You know?

Tue, Oct 9
DEN
Denver International
YYZ
Toronto Pearson Intl
6h 25m
Wed, Oct 17
YYZ
Toronto Pearson Intl
DEN
Denver International
7h 17m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 33,760 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
SAT
MIA
Excellent 9.3

The service was excellent and the flight on time.

The seats have been refurbished In the narrow size.

PHL
PRG
Okay 4.6

Crew was good.

Plane needs updated or put out of service. Uncomfortable for international flights. Monitors were few and broken in the main cabin.

PVD
PHL
Excellent 10.0

No problems, arrived early

LAX
ORD
Okay 5.3

Not the best. Marginal food and hassled about carry-on that fit the size requirements. More like premium economy.

LHR
DFW
Excellent 8.0

Arrived safely.

Noisy children.

Wed, Oct 10
DEN
Denver International
YYZ
Toronto Pearson Intl
8h 17m
Tue, Nov 6
YYZ
Toronto Pearson Intl
DEN
Denver International
8h 21m
Trip: 28 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Oct 23
DEN
Denver International
YHM
Hamilton
8h 43m
Wed, Oct 24
YHM
Hamilton
DEN
Denver International
8h 30m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 6,887 reviews
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.1
Food
7.2
YYZ
YYC
Good 6.0

The flight itself was okay. Nothing bad to say.

We didn't know that you need an app to watch movies on your own devices with West Jet. Y u need to download the app before you get to the airport, because the WiFi doesn't work at the airport or on the plane. I don't have data on my phone or tablet.

FLL
YYZ
Okay 4.0

Flight from Fort Lauderdale to Toronto heavily delayed, missed connection.

YYZ
YWG
Mediocre 2.0

Later flight from Toronto delayed multiple times, finally to 2:40 am and then canceled at midnight. Way too late to find an affordable hotel, had to stay at expensive airport hotel instead.

YYC
YUL
Excellent 10.0

Airport services were excellent. Wait at check in and security were very little, just a few minutes. We had an awesome experience on both Calgary and Montreal sides

YYJ
YYC
Excellent 8.0

Boarding etc was all fine.

Thu, Oct 25
DEN
Denver International
YTZ
Toronto Island
9h 04m
Mon, Oct 29
YTZ
Toronto Island
DEN
Denver International
10h 48m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 2,142 reviews
Boarding
7.9
Comfort
7.9
Crew
8.4
Entertainment
6.9
Food
7.8
YTZ
BOS
Mediocre 2.0

late and no apologies

YUL
YTZ
Excellent 8.6

Friendly crew, comfortable seats, leg room is really good and snacks.

Delayed flight 45 minutes

YUL
YTZ
Excellent 8.0

Flight was smooth. Crew was nice.

YTZ
IAD
Excellent 8.0

My return flight was delayed by 90 minutes.

YTZ
YQB
Excellent 9.3

City Center airport and staff at Porter was great

Flight kept getting delayed without explanation or rescheduling. Each "new" time had already passed when it was set, e.g., "The new departure time is noon" when it was already 12:15.

Mon, Oct 8
DEN
Denver International
YYZ
Toronto Pearson Intl
3h 02m
Sat, Oct 20
YYZ
Toronto Pearson Intl
DEN
Denver International
5h 53m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 79 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
DEN
YYZ
Okay 5.3

1 stewardess was great

Flights were delayed. Did not check boarding passes which was scary.

DEN
YYZ
Excellent 8.3

Cabin crew were terrific!

The unfortunate delay of our flight. And the entertainment systems seems to be getting old. What I mean is that it is by todays standard very very slow to switch between menus etc. And in some cases did not display all the menu content.

DEN
YYZ
Okay 4.0

Not much. Crew was good but that is about it.

Tight spaces packed in like sardines. FAA seriously needs to look at how these airlines pack us into these seats. Can barely sit in the set, no room to stretch legs, tray table hits my stomach, and I don't even have a big belly. When the guy in front reclines, cannot even get out of my seat. Chaotic boarding process without any order or instructions or announcements, poor food and entertainment.

DEN
YYZ
Good 6.0

put us up in decent hotels gave food vouchers the crew didn't do anything to make it horrible Large selection of movies/tv on board comfiest seats out of all the major airlines I've flown

The flight kept getting delayed bc of mechanical problems, and then eventually cancelled. They rebooked everyone on new flights, but it took an extra stop in Toronto before getting us to Montreal. Once it was rebooked for the morning, it took off a little late. Plus the pretzels they gave us were stale. This was the first of two flights I took this trip that had mechanical issues, so they obviously need to fix their planes better or get new ones, because two Air Canada flights in one day that have mechanical problems leaves me worried that the planes aren't in optimal condition. It took me over 24 hours to get from Tucson, AZ to Montreal, Canada when normal travel takes less than 8 hours including layovers.

DEN
YYZ
Okay 4.0

Nothing! Unpleasant unhelpful crew at gate, no better onboard, absolutely moist cramped seating ever! Disorganized and late- boarding, departing, waited to disembark at arrival, 25 min before first bag off baggage......dreadful no one cares

Thank you for choosing Air Canada- smiles and goodbyes- where's all that Before you leave? They treat you like problem cattle to be dealt with, you're anonymous and valueless until you leave then they look at you and thank you?! Missing sincerity And service!

Fri, Nov 9
DEN
Denver International
YOW
Ottawa
7h 45m
Mon, Nov 12
YOW
Ottawa
DEN
Denver International
7h 19m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,359 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
IND
ATL
Excellent 10.0

Quick

YYZ
ATL
Excellent 9.3

Customs massively backed up. Somewhat disorganized

AMS
PDX
Okay 5.0

Going back home to the US

I had 15 hours layover in Amsterdam so I got me a hotel.one hour after I got to the hotel I got a notification from Kayak app asking me to go get my bag from Schiphol. My bag was supposed to be directly shipped to PDX. I had to leave my hotel back to the airport and spend 2 hours trying to find it only to be told that it was going to PDX. I lost my $170 hotel room, over $70 for taxis and ended up spending the night on the floor at Schipol. I do not think I'll ever use Kayak again. The travel guarantee is a joke too.

ATL
CLT
Excellent 8.6

Video access

Too hot, too crowded

AUS
ATL
Excellent 8.6

love that Delta is now giving out Kind bars. Thanks!

Tue, Oct 23
DEN
Denver International
YYZ
Toronto Pearson Intl
6h 09m
Wed, Oct 24
YYZ
Toronto Pearson Intl
DEN
Denver International
5h 47m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 33,760 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
DEN
DFW
Mediocre 2.0

Nothing.

DFW
LHR
Excellent 8.0

No unexpected surprises.

No complaints.

PVD
PHL
Excellent 10.0

No problems, arrived early

LAX
ELP
Excellent 9.3

I'm 6ft2in not enough leg room

MIA
SJU
Excellent 9.3

The service was excellent and the flight on time. Love American.

The seats have been refurbished and if you are a plus size the seats are uncomfortable.

Wed, Oct 10
DEN
Denver International
YYZ
Toronto Pearson Intl
8h 17m
Wed, Nov 7
YYZ
Toronto Pearson Intl
DEN
Denver International
14h 47m
Trip: 29 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Nov 7
DEN
Denver International
YOW
Ottawa
6h 32m
Sat, Nov 10
YOW
Ottawa
DEN
Denver International
12h 19m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 59,500 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
IAH
EWR
Mediocre 2.0

Lounge

Delayed flight which kept pushing back for more then 5 hours. Got booked on the next flight got middle seat. Flight attendant was rude and short with people. Not very personable. Plane was so hot everyone was sweating.

CDG
IAD
Excellent 10.0

All other stuff good

No music options for entertainment

EWR
LAS
Good 6.3

The staff was kind and flight was smooth

The plane was small and cramped. I could barely bend down to get my bag from under the seat in front of me and I'm tiny. I can just imagine how bigger people felt.

ZRH
IAD
Excellent 9.6

Very nice FLY and fantastic weather. No turbulence THAT all. UNITED CAPITAN AND CREW, nice. Thanks to GOD a nice fly in ALL aspects.

To be honest, everything was OK.

SFO
IAD
Excellent 8.0

.

Wed, Oct 24
DEN
Denver International
YYZ
Toronto Pearson Intl
4h 52m
Tue, Oct 30
YYZ
Toronto Pearson Intl
DEN
Denver International
6h 43m
Trip: 7 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,359 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
IND
ATL
Excellent 10.0

Quick

ORD
CVG
Good 6.0

Short flight

Flight attendant was not willing to go above and beyond as he stated he would. My husband asked for a coke and the flight attendant told him he could only get water.

YYZ
ATL
Excellent 9.3

Customs massively backed up. Somewhat disorganized

AUS
ATL
Excellent 8.6

love that Delta is now giving out Kind bars. Thanks!

DFW
JFK
Excellent 8.3

I was surprised by the amount of snacks and drinks on such a short flight.

Tue, Nov 27
DEN
Denver International
YYZ
Toronto Pearson Intl
6h 18m
Wed, Nov 28
YYZ
Toronto Pearson Intl
DEN
Denver International
6h 09m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 33,760 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
PHL
PRG
Okay 4.6

Crew was good.

Plane needs updated or put out of service. Uncomfortable for international flights. Monitors were few and broken in the main cabin.

DEN
DFW
Mediocre 2.0

Nothing.

SEA
CLT
Mediocre 2.0

They were rude and disrespectful.

They were rude and disrespectful.

MIA
SJU
Excellent 9.3

The service was excellent and the flight on time. Love American.

The seats have been refurbished and if you are a plus size the seats are uncomfortable.

SAT
MIA
Excellent 9.3

The service was excellent and the flight on time.

The seats have been refurbished In the narrow size.

Fri, Nov 2
DEN
Denver International
YYZ
Toronto Pearson Intl
12h 18m
Tue, Nov 13
YYZ
Toronto Pearson Intl
DEN
Denver International
8h 21m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 8
DEN
Denver International
YHM
Hamilton
8h 43m
Tue, Jan 15
YHM
Hamilton
DEN
Denver International
8h 28m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 6,887 reviews
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.1
Food
7.2
YVR
YYZ
Good 6.6

Booked our seats 24 hours in advance and could not get seats together. Airline expects us to pay extra for reasonable expectations as that

YYC
YUL
Excellent 10.0

Airport services were excellent. Wait at check in and security were very little, just a few minutes. We had an awesome experience on both Calgary and Montreal sides

LGW
YVR
Okay 4.0

Charging customers for meals on a transatlantic flight is a terrible way to nickel and dime your customers for the most basic provisions. Not all travellers carry accepted credit cards, including the woman sitting beside me. Because it is so common (formally standardized) for airlines to provide food on longer flights, many travellers assume their WestJet flight will the same and arrive unprepared. I normally love WestJet for their customer service, but these flight attendants talked down to customers with legitimate questions. I am choosing another airline for my next international flight, although reluctantly so - I hope to see some changes from WestJet for a more comfortable flight.

YYC
CUN
Okay 4.8

There wasn't any food to purchase other than a few snacks. That's just not good enough for a 6 hour flight, Really poor.

YEG
YYJ
Okay 4.0

Delayed over a hour

Sat, Oct 20
DEN
Denver International
YYZ
Toronto Pearson Intl
13h 57m
Wed, Oct 24
YYZ
Toronto Pearson Intl
DEN
Denver International
6h 43m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,359 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
ATL
CLT
Excellent 8.6

Video access

Too hot, too crowded

IND
ATL
Excellent 10.0

Quick

ORD
CVG
Good 6.0

Short flight

Flight attendant was not willing to go above and beyond as he stated he would. My husband asked for a coke and the flight attendant told him he could only get water.

ATH
FCO
Excellent 10.0

Boarding from back to front. Making early boarders wait to the side when they tried to embark too soon.

All the people standing in line prior to boarding.

AUS
ATL
Excellent 8.6

love that Delta is now giving out Kind bars. Thanks!

Tue, Jan 8
DEN
Denver International
YYZ
Toronto Pearson Intl
5h 16m
Tue, Jan 15
YYZ
Toronto Pearson Intl
DEN
Denver International
7h 33m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 33,760 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
MIA
SJU
Excellent 9.3

The service was excellent and the flight on time. Love American.

The seats have been refurbished and if you are a plus size the seats are uncomfortable.

SAT
MIA
Excellent 9.3

The service was excellent and the flight on time.

The seats have been refurbished In the narrow size.

DEN
DFW
Mediocre 2.0

Nothing.

DFW
LHR
Excellent 8.0

No unexpected surprises.

No complaints.

SEA
CLT
Mediocre 2.0

They were rude and disrespectful.

They were rude and disrespectful.

Sat, Nov 3
DEN
Denver International
YYZ
Toronto Pearson Intl
7h 14m
Tue, Nov 13
YYZ
Toronto Pearson Intl
DEN
Denver International
8h 13m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Oct 22
DEN
Denver International
YYZ
Toronto Pearson Intl
7h 11m
Wed, Oct 24
YYZ
Toronto Pearson Intl
DEN
Denver International
6h 43m
Trip: 3 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,359 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
AUS
ATL
Excellent 8.6

love that Delta is now giving out Kind bars. Thanks!

DFW
JFK
Excellent 8.3

I was surprised by the amount of snacks and drinks on such a short flight.

LAX
SYD
Mediocre 2.0

They lost my luggage & made me miss my connecting flight

AMS
PDX
Okay 5.0

Going back home to the US

I had 15 hours layover in Amsterdam so I got me a hotel.one hour after I got to the hotel I got a notification from Kayak app asking me to go get my bag from Schiphol. My bag was supposed to be directly shipped to PDX. I had to leave my hotel back to the airport and spend 2 hours trying to find it only to be told that it was going to PDX. I lost my $170 hotel room, over $70 for taxis and ended up spending the night on the floor at Schipol. I do not think I'll ever use Kayak again. The travel guarantee is a joke too.

ATH
FCO
Excellent 10.0

Boarding from back to front. Making early boarders wait to the side when they tried to embark too soon.

All the people standing in line prior to boarding.

Wed, Dec 19
DEN
Denver International
YYZ
Toronto Pearson Intl
9h 10m
Wed, Jan 9
YYZ
Toronto Pearson Intl
DEN
Denver International
7h 36m
Trip: 22 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 33,760 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
MIA
ORD
Excellent 10.0

The flight was good. Takeoff and landing were great. Service in flight great.

The online safety show didn’t work. They started it several times, then did it in Edson. The overhead reading lights flashed on and off periodically making me a bit concerned about the electricals. Our main piece of luggage was sent on a different flight. It took us over an hour to locate that had happened. We waited at the distribution point. We got one Piecebut not the other. After all we’re taken from the belt we went in search and found it.

SAT
MIA
Excellent 9.3

The service was excellent and the flight on time.

The seats have been refurbished In the narrow size.

LHR
DFW
Excellent 8.0

Arrived safely.

Noisy children.

PHL
PRG
Okay 4.6

Crew was good.

Plane needs updated or put out of service. Uncomfortable for international flights. Monitors were few and broken in the main cabin.

DFW
JAX
Mediocre 2.0

Couldn't get own crew closed gate and would not open door.

Crew closed gate before the 10 min delayed time, knowing connecting passengers would not be able to make it. From a flight 10 min late.

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