Find Cheap Flights from Denver International to Ontario (DEN - ONT)

Search hundreds of travel sites at once for deals on flights to Ontario

Depart
Return
Any month
Compare vs. KAYAK |

Denver International to Ontario Flight Information

Avg. Flight Duration 2h 25m
Flights Arrive in Ontario
Flights Depart from Denver International
Flight Price $117
Distance 817 miles
Airlines Frontier, United Airlines, American Airlines, Delta, Alaska Airlines

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
November
Most popular time to fly
14%
expected price increase
Average Price:
$216
(avg. price over the last 2 weeks)
Good Deal:
$118
or less (round trip)

When to Book Flights from Denver International to Ontario

Estimated round-trip price
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 $118 or less.
The cheapest flight from Denver International to Ontario was found 18 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
High season is considered to be October, November and December. The cheapest month to fly is January.
Morning departure is around 9% cheaper 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 Denver International to Ontario Flights

How long does a flight from Denver International to Ontario take?
An average nonstop flight takes 2h 19m, covering a distance of 817 miles.
How many flights are there between Denver International and Ontario?
There are 105 (nonstop) flights between Denver International and Ontario per week, averaging 15 per day.
Which airlines provide the cheapest flights from Denver International to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($117), United Airlines ($164) and American Airlines ($192).
Do I need a passport to fly between Denver International and Ontario?
No.
Which airlines fly most frequently between Denver International and Ontario?
Southwest (6 times daily), Air Canada (3 times daily), United Airlines (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Denver International to Ontario?
For Denver International to Ontario, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ontario back to Denver International, the best deals are generally found on Tuesday, with Saturday being the most expensive.
Which airports will I be using when flying from Denver to Ontario?
When flying out of Denver you will be using Denver International, often referred to as Denver Airport. You will be landing at Ontario, also known as Ontario Airport.

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

Airports
Origin
Denver
$117
only
$117
Destination
Ontario
$117
only
$117
Tue, Jan 8
DEN
Denver International
ONT
Ontario
2h 33m
Thu, Jan 17
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 10 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Mediocre 2.0

Cons: We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

DEN
ONT
Mediocre 2.0

Pros: Nothing

Cons: Everything

MKE
TPA
Mediocre 3.3

Pros: Nothing

Cons: How we were all told after most were ay the gate it was changed to a different gate once there we were told that it would be ay least 2hr late for maintenance. I'm handicapped couldn't get around that was time I could have spent with my family and I was Hungary snf needed to use the restroom which couldn't use until boarding. Very unprofessional I wouldn't give a better grade than a d'- not sure if I would use this airline again. At least we could have comped a free soda and chips. Since the airline new that was happening ahead of time and we could have made choice our selves what to doyou people charge for or fee for anything we might want to change but it's ok for you to treat us poorly sincerely Eugenio Cortez

DEN
ORD
Mediocre 2.0

Pros: Nothing

Cons: Waiting for 2+ hours at the gate waiting for the plane to leave.

Mon, Jan 14
DEN
Denver International
ONT
Ontario
2h 20m
Sun, Feb 3
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 21 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
ONT
Excellent 8.3

Pros: The flight was very smooth and fast. Great crew!

Cons: The food is terrible! Why give out anything?

DEN
ONT
Excellent 10.0

Pros: Same as above. Nothing to add

EWR
MSY
Good 6.6

Pros: Crew was efficient and personable.

Cons: Two and a half hour delay leaving EWR because aircraft was late from prior destination. UAL said FAA limited flights coming in due to weather. Although scattered light rain, no seemingly unusual weather at EWR. No special reward once on the flight to make up for that delay (I.e. still charged for snacks and alcoholic drinks). Delay was very frustrating. Also, not a fan of selections on United WiFi entertainment - very limited.

DEN
ONT
Excellent 10.0

Pros: How smooth and fast everything was

DEN
ONT
Excellent 10.0

Pros: no delays

Fri, Jan 4
DEN
Denver International
ONT
Ontario
4h 25m
Tue, Jan 8
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
BNA
LAX
Excellent 8.8

Pros: there was an open seat between aisle and window seat!!! however I did pay extra $40 for that seat. so nice to be able to move without constantly knocking into person sitting smashed next to you! great AA crew, polite & professional. on time departure and arrival. comfortable cabin, seats

Cons: would be nice to have individual entertainment screen - instead it was above every few seats

GSP
CLT
Okay 4.0

Pros: Seats

Cons: WiFi was weak...things were stolen out of my carry on checked at the gate in Charlotte...I had the only bag checked at the gate.

PHL
DUB
Excellent 10.0

Pros: Boarding was very smooth crew was very pleasant and helpful

AKL
LAX
Excellent 10.0

Pros: I was in business class and the individual cubicles were so comfortable. I slept well. The airline attendant was so attentive and helpful

Cons: Going through LAX what a mess

CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

Thu, May 2
DEN
Denver International
ONT
Ontario
4h 21m
Thu, May 9
ONT
Ontario
DEN
Denver International
2h 11m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,950 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
ANC
SEA
Excellent 9.0

Pros: Everything was fine. Delta did a great job.

Cons: The kid screaming in my ear for 3 hours

BOS
PHL
Excellent 8.6

Pros: We left early

BDL
ATL
Excellent 9.3

Pros: New plane with great entertainment arrived 30 mins early

MKE
LGA
Good 7.3

Pros: Boarding was easy, plane clean, snacks good.

Cons: Small plane but that’s not really fixable

ATL
MCI
Excellent 10.0

Pros: Nice people

Cons: Waiting at gate in KC

Thu, Jan 10
DEN
Denver International
ONT
Ontario
2h 33m
Thu, Jan 17
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 8 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Okay 4.0

Pros: The flight itself was fine

Cons: I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle

DEN
ONT
Mediocre 3.3

Pros: None of the self check in stations was working so there’s one very long line to check in with attendants. No effort by staff to get passengers with current flights to get to front of line. Had to convince staff that small women’s pack was a purse and not a 2nd bag to be checked in for $50. Woman in front of me had a more traditional large purse and encountered no problems.

DEN
ONT
Good 6.0

Cons: The plane was over an hour late and they lost our luggage. I understand things happen it was not that big of deal but the lady in Syracuse was unfriendly and acted like she could care less. We ended up going to a wedding in our shorts and flip flops because we had no clothes and not enough time to purchase any. Our bag was delivered about 1am. The customer service was really pathetic. Not even an I'm sorry this happened.

DEN
ONT
Good 6.0

Pros: a bit better, the flight was only half full so it made the experience more enjoyable overall.

Cons: Kinda annoying they are always trying to upsell.

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

Sun, Jan 13
DEN
Denver International
ONT
Ontario
2h 33m
Tue, Jan 15
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 3 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Okay 4.0

Pros: The flight itself was fine

Cons: I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle

LAS
GEG
Okay 5.6

Pros: Direct flight

Cons: Not really a negative thing to say

DEN
ONT
Mediocre 2.0

Cons: We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful

MKE
TPA
Mediocre 3.3

Pros: Nothing

Cons: How we were all told after most were ay the gate it was changed to a different gate once there we were told that it would be ay least 2hr late for maintenance. I'm handicapped couldn't get around that was time I could have spent with my family and I was Hungary snf needed to use the restroom which couldn't use until boarding. Very unprofessional I wouldn't give a better grade than a d'- not sure if I would use this airline again. At least we could have comped a free soda and chips. Since the airline new that was happening ahead of time and we could have made choice our selves what to doyou people charge for or fee for anything we might want to change but it's ok for you to treat us poorly sincerely Eugenio Cortez

DEN
ONT
Mediocre 2.0

Pros: Nothing

Cons: Everything

Thu, Jan 17
DEN
Denver International
ONT
Ontario
2h 33m
Tue, Jan 22
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 6 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Good 6.0

Cons: The plane was over an hour late and they lost our luggage. I understand things happen it was not that big of deal but the lady in Syracuse was unfriendly and acted like she could care less. We ended up going to a wedding in our shorts and flip flops because we had no clothes and not enough time to purchase any. Our bag was delivered about 1am. The customer service was really pathetic. Not even an I'm sorry this happened.

DEN
ORD
Mediocre 2.0

Pros: Nothing

Cons: Waiting for 2+ hours at the gate waiting for the plane to leave.

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

LAS
MCO
Mediocre 2.0

Pros: Absolutely nothing !

Cons: The staff from beginning to end where rude inattentive , the seat where extremely uncomfortable. Gate change multiple time within the last hour

DEN
ONT
Mediocre 3.3

Pros: None of the self check in stations was working so there’s one very long line to check in with attendants. No effort by staff to get passengers with current flights to get to front of line. Had to convince staff that small women’s pack was a purse and not a 2nd bag to be checked in for $50. Woman in front of me had a more traditional large purse and encountered no problems.

Wed, Jan 16
DEN
Denver International
ONT
Ontario
2h 20m
Sun, Jan 20
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
ONT
Mediocre 2.0

Cons: Bag was sent LAX. I have very important documents and items in my bag. Still waiting on it to arrive...

DEN
ONT
Excellent 10.0

Cons: Delayed by 15mins

DEN
ONT
Good 7.6

Cons: Nowhere to plug in phones or iPads. Snacks were marginal

IAH
ORD
Okay 4.3

Cons: Check in crew was so inflexible, and demanding. She wanted me to open a careful-sealed box just to take a pound out. Whrist my other luggage was only 48 pounds! I understand it is part of my fault not to be careful when weigh the boxes but she should have asked nicely. I would rate 0 for the bad behavior. This is not a first time I have bad experienced with United Airlines. I would not recomend this airlines.

DEN
ONT
Excellent 10.0

Pros: Flight was a bit bumpy but staff was helpful and not deterred from providing great service.

Tue, Jan 22
DEN
Denver International
ONT
Ontario
2h 33m
Thu, Jan 24
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 3 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
LAS
MCO
Mediocre 2.0

Pros: Absolutely nothing !

Cons: The staff from beginning to end where rude inattentive , the seat where extremely uncomfortable. Gate change multiple time within the last hour

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

DEN
ORD
Mediocre 2.0

Pros: Nothing

Cons: Waiting for 2+ hours at the gate waiting for the plane to leave.

MKE
TPA
Mediocre 3.3

Pros: Nothing

Cons: How we were all told after most were ay the gate it was changed to a different gate once there we were told that it would be ay least 2hr late for maintenance. I'm handicapped couldn't get around that was time I could have spent with my family and I was Hungary snf needed to use the restroom which couldn't use until boarding. Very unprofessional I wouldn't give a better grade than a d'- not sure if I would use this airline again. At least we could have comped a free soda and chips. Since the airline new that was happening ahead of time and we could have made choice our selves what to doyou people charge for or fee for anything we might want to change but it's ok for you to treat us poorly sincerely Eugenio Cortez

DEN
ONT
Good 6.0

Pros: a bit better, the flight was only half full so it made the experience more enjoyable overall.

Cons: Kinda annoying they are always trying to upsell.

Fri, Jan 4
DEN
Denver International
ONT
Ontario
11h 35m
Sun, Jan 6
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 3 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 24,909 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
LAX
EWR
Excellent 10.0

Pros: First time on Alaska. Smooth flight, quick boarding and deboarding.

SFO
AUS
Okay 5.6

Cons: Alaska has utterly ruined Virgin’s first class experience, and the food is garbage.

SJC
LAX
Mediocre 3.0

Cons: My experience: Animal Abuse during boarding, cancellation of flights every single time I’ve booked flights, horrible mess with customer service, just don’t care about people...

LAX
LAS
Excellent 10.0

Pros: Individual tv, seat comfort

BWI
SAN
Excellent 10.0

Cons: Smooth sailing no issues

Thu, Jan 17
DEN
Denver International
ONT
Ontario
2h 20m
Sun, Feb 3
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 18 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
EWR
MSY
Good 6.6

Pros: Crew was efficient and personable.

Cons: Two and a half hour delay leaving EWR because aircraft was late from prior destination. UAL said FAA limited flights coming in due to weather. Although scattered light rain, no seemingly unusual weather at EWR. No special reward once on the flight to make up for that delay (I.e. still charged for snacks and alcoholic drinks). Delay was very frustrating. Also, not a fan of selections on United WiFi entertainment - very limited.

DEN
ONT
Excellent 10.0

Pros: How smooth and fast everything was

DEN
ONT
Excellent 10.0

Pros: Same as above. Nothing to add

DEN
ONT
Good 7.6

Cons: Nowhere to plug in phones or iPads. Snacks were marginal

DEN
ONT
Excellent 10.0

Pros: no delays

Sun, Feb 3
DEN
Denver International
ONT
Ontario
2h 33m
Sun, Feb 17
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 15 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Okay 4.0

Pros: The flight itself was fine

Cons: I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle

DEN
ONT
Good 6.0

Cons: The plane was over an hour late and they lost our luggage. I understand things happen it was not that big of deal but the lady in Syracuse was unfriendly and acted like she could care less. We ended up going to a wedding in our shorts and flip flops because we had no clothes and not enough time to purchase any. Our bag was delivered about 1am. The customer service was really pathetic. Not even an I'm sorry this happened.

DEN
ONT
Mediocre 2.0

Cons: We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

DEN
ONT
Mediocre 3.3

Pros: None of the self check in stations was working so there’s one very long line to check in with attendants. No effort by staff to get passengers with current flights to get to front of line. Had to convince staff that small women’s pack was a purse and not a 2nd bag to be checked in for $50. Woman in front of me had a more traditional large purse and encountered no problems.

Sat, Feb 2
DEN
Denver International
ONT
Ontario
2h 19m
Sun, Feb 17
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 16 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
ONT
Okay 4.3

Cons: The seats are incredibly cramped. Also, they want $10 for 4.5 oz of cheese and crackers. Rip off.

EWR
LAX
Excellent 9.6

Pros: Great video entertainment selection

Cons: Being in a middle seat

DEN
ONT
Good 7.6

Cons: Nowhere to plug in phones or iPads. Snacks were marginal

DEN
ONT
Mediocre 2.0

Cons: Bag was sent LAX. I have very important documents and items in my bag. Still waiting on it to arrive...

IAH
ORD
Okay 4.3

Cons: Check in crew was so inflexible, and demanding. She wanted me to open a careful-sealed box just to take a pound out. Whrist my other luggage was only 48 pounds! I understand it is part of my fault not to be careful when weigh the boxes but she should have asked nicely. I would rate 0 for the bad behavior. This is not a first time I have bad experienced with United Airlines. I would not recomend this airlines.

Sat, Feb 23
DEN
Denver International
ONT
Ontario
2h 19m
Sun, Feb 24
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 2 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
ONT
Excellent 10.0

Pros: How smooth and fast everything was

DEN
ONT
Okay 4.3

Cons: The seats are incredibly cramped. Also, they want $10 for 4.5 oz of cheese and crackers. Rip off.

DEN
ONT
Excellent 10.0

Pros: Same as above. Nothing to add

EWR
LAX
Excellent 9.6

Pros: Great video entertainment selection

Cons: Being in a middle seat

DEN
ONT
Excellent 10.0

Pros: Flight was a bit bumpy but staff was helpful and not deterred from providing great service.

Sat, Mar 2
DEN
Denver International
ONT
Ontario
5h 06m
Wed, Mar 6
ONT
Ontario
DEN
Denver International
2h 09m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

PHL
MAD
Excellent 8.0

Pros: Punctual, connexion gate very close

ROC
CLT
Good 6.0

Pros: The airlines don't allow enough room to sit comfortably. I am 6' 2" 250 lbs. My knees touch the back of the seat in front of me and there is no room side to side. Very uncomfortable.

BNA
LAX
Excellent 8.8

Pros: there was an open seat between aisle and window seat!!! however I did pay extra $40 for that seat. so nice to be able to move without constantly knocking into person sitting smashed next to you! great AA crew, polite & professional. on time departure and arrival. comfortable cabin, seats

Cons: would be nice to have individual entertainment screen - instead it was above every few seats

JFK
DCA
Good 7.5

Pros: It was quick.

Cons: Flying these days is no better than taking a local bus.

Sat, Jan 12
DEN
Denver International
ONT
Ontario
4h 31m
Thu, Jan 17
ONT
Ontario
DEN
Denver International
6h 05m
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,950 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
ANC
SEA
Excellent 9.0

Pros: Everything was fine. Delta did a great job.

Cons: The kid screaming in my ear for 3 hours

LAX
HNL
Good 6.0

Pros: One of the flight attendants was nice.

Cons: 5+ hours and just some bagged snacks. Had to wait forever for soda. Screen was difficult to work - touch wasn’t working. Much smaller program selection than flights 6 days ago from RSW to LAX via ATL.

RDU
JFK
Mediocre 2.0

Pros: Nothing

Cons: I missed my flight due to Tsa

SEA
GEG
Mediocre 2.0

Cons: The pplane was two hours late to depart due to technical issues.

BDL
ATL
Excellent 9.3

Pros: New plane with great entertainment arrived 30 mins early

Thu, Jan 17
DEN
Denver International
ONT
Ontario
2h 33m
Sun, Jan 20
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 4 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 15 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
ONT
Good 6.0

Pros: a bit better, the flight was only half full so it made the experience more enjoyable overall.

Cons: Kinda annoying they are always trying to upsell.

LAS
MCO
Mediocre 2.0

Pros: Absolutely nothing !

Cons: The staff from beginning to end where rude inattentive , the seat where extremely uncomfortable. Gate change multiple time within the last hour

DEN
ONT
Mediocre 3.3

Pros: None of the self check in stations was working so there’s one very long line to check in with attendants. No effort by staff to get passengers with current flights to get to front of line. Had to convince staff that small women’s pack was a purse and not a 2nd bag to be checked in for $50. Woman in front of me had a more traditional large purse and encountered no problems.

DEN
CLT
Excellent 10.0

Pros: The price! Non stop

DEN
ONT
Okay 4.0

Pros: The flight itself was fine

Cons: I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle

Mon, Jan 7
DEN
Denver International
ONT
Ontario
4h 28m
Wed, Jan 16
ONT
Ontario
DEN
Denver International
3h 46m
Trip: 10 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
ORD
LGA
Mediocre 2.0

Cons: They lost my luggage. They did not allow me to take her whit me in the plane because i did not fit a suitcase that always travel on top because is small suitcase terrible I will never travel again with amercan airlines

ROC
CLT
Good 6.0

Pros: The airlines don't allow enough room to sit comfortably. I am 6' 2" 250 lbs. My knees touch the back of the seat in front of me and there is no room side to side. Very uncomfortable.

JFK
DCA
Good 7.5

Pros: It was quick.

Cons: Flying these days is no better than taking a local bus.

BNA
LAX
Excellent 8.8

Pros: there was an open seat between aisle and window seat!!! however I did pay extra $40 for that seat. so nice to be able to move without constantly knocking into person sitting smashed next to you! great AA crew, polite & professional. on time departure and arrival. comfortable cabin, seats

Cons: would be nice to have individual entertainment screen - instead it was above every few seats

CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

Sat, Jan 26
DEN
Denver International
ONT
Ontario
4h 31m
Tue, Jan 29
ONT
Ontario
DEN
Denver International
4h 50m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,950 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
ATL
CLE
Excellent 10.0

Pros: I’m always pleased with our delta flights to and from Atlanta. Our flight was on time, the comfort plus seats are comfy enough, and the flights are quick and easy.

Cons: Everything was great on our flight.

ANC
SEA
Excellent 9.0

Pros: Everything was fine. Delta did a great job.

Cons: The kid screaming in my ear for 3 hours

RDU
JFK
Mediocre 2.0

Pros: Nothing

Cons: I missed my flight due to Tsa

ATL
MCI
Excellent 10.0

Pros: Nice people

Cons: Waiting at gate in KC

DTW
LAX
Excellent 10.0

Pros: Everything went smoothly. Baggage was at carousel before we were, a first.

Cons: Everything was fine.

Thu, Jan 10
DEN
Denver International
ONT
Ontario
5h 16m
Sun, Jan 13
ONT
Ontario
DEN
Denver International
2h 23m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 25 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
ONT
Excellent 10.0

Pros: no delays

DEN
ONT
Excellent 10.0

Pros: Flight was a bit bumpy but staff was helpful and not deterred from providing great service.

DEN
ONT
Excellent 10.0

Cons: Delayed by 15mins

DEN
ONT
Excellent 8.3

Pros: The flight was very smooth and fast. Great crew!

Cons: The food is terrible! Why give out anything?

EWR
LAX
Excellent 9.6

Pros: Great video entertainment selection

Cons: Being in a middle seat

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
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.