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Ontario to Colorado Flight Information

Flights Arrive in Colorado
Flights Depart from Ontario
Flight Price $97
Airlines Frontier, United Airlines, Delta, American Airlines

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

Airports
Origin
Ontario
$97
only
$97
Destination
Denver
$97
only
$97
Thu, Nov 29
ONT
Ontario
DEN
Denver International
2h 19m
Thu, Dec 6
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAT
DEN
Mediocre 2.0

Cons: Soooo bad both flights were deleted.

DEN
DCA
Okay 4.0

Pros: I got to DC in one piece.

Cons: Seats are REALLY uncomfortable as they're thin and don't recline, no USB plugs in plane or Wifi available. Lots of turbulence on this flight which sucked, but that's out of the airline's hands I suppose. The trip from Seattle to Denver was even worse. Bag drop took over an hour, and the plan wasn't ready when it was supposed to be. Took forever, which sucked on a red eye.

LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

ONT
DEN
Mediocre 2.0

Cons: Due to all the delays on my first flight I just decided To re-book a different flight back I will never fly with this company again terrible the only reason they get a star because I can’t give them nine terrible

AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

Tue, Dec 11
ONT
Ontario
DEN
Denver International
2h 07m
Thu, Dec 13
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ONT
DEN
Excellent 10.0

Cons: They crushed my luggage but replaced the carry on after.

ONT
DEN
Good 7.3

Pros: Upon arrival at my gate departing to Durham with a 2 year old handful. I was excited to hear the attendant call for travelers with small children to board first. The thought of boarding at the same time as everyone else was giving me anxiety.

Cons: Once I shuffled through tons disgruntled travelers because of my "child privilege" the attendant rolled her eyes and took a deep breath at the amount of time it took me to get to my ticket. Mind you, it makes sense I would have it somewhere convenient, but like I said single traveller, 2 year old handful. She scanned my ticket and flogged her hair in the air telling me take my stuff to the front of the plane. While the other attendant tagged all my items.

ONT
DEN
Excellent 10.0

Pros: I didn't fly.I bought the ticket for my son. He had no complaints. You should ask in your questionnaire if the booked flight was for self or someone else.

ONT
DEN
Excellent 8.6

Pros: This was a short flight. The only issue was the boarding. Took a while for me to get to my seat.

PNS
ORD
Excellent 8.0

Pros: Smaller plane was awesome. Flight service great. Checkin easy.

Cons: We are okay with seat area but would ask that united freeze seat backs. The inconsiderate bumpkins in front of us put seat back and then leaned forward the whole flight. we could not even put our tray table all the way down. Coke spilled all over us in turbulence as liose tabke bounced significantly more than if set in place. Give people rude, freeze saet so cant recline or remove tray tables so we dont hurt ourselves due to rude people.

Wed, Dec 5
ONT
Ontario
DEN
Denver International
4h 15m
Sun, Dec 9
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,442 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

SAN
LAX
Good 7.3

Pros: Delta was OK

Cons: Lack of attention by the fly stuard in Virgin Australia Virgin had a 45´delay

DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

ATL
SFO
Good 6.0

Pros: Transfer f from first flight leg

Cons: Food and the 757 lay out

Sun, Dec 2
ONT
Ontario
DEN
Denver International
2h 19m
Tue, Dec 4
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
AUS
Mediocre 2.6

Cons: Was late on the flight there and the flight back. Pilot messed up the landing. Price was good and that's it.

ONT
DEN
Okay 5.0

Pros: Nothing

Cons: Late. Late.Late Staff seemed rude

DEN
DTW
Excellent 10.0

Pros: I really like this a-la-carte method- you only pay for what you want. This was an extremely cheap flight ($126RT) and you pay for any upgrades- which we did not require as we travelled with just a backpack for a long weekend to Colorado. The backpack was well within the measurements they allot for the FREE personal item, so we didn’t even have to pay for the carry on as it stowed under the seat in front. The staff was funny and joked over the speakers, they were helpful and smiling.

Cons: Nothing to complain about. That’s the way to do it, Frontier!

ONT
DEN
Okay 5.0

Pros: I liked that there were no issues with my flight I was able to just board , get there and have no problems

Cons: I don’t like the fees for everything. It kinda just made me annoyed that there were fees attached to everything that doubled the cost of my flight.

DEN
DCA
Okay 4.0

Pros: I got to DC in one piece.

Cons: Seats are REALLY uncomfortable as they're thin and don't recline, no USB plugs in plane or Wifi available. Lots of turbulence on this flight which sucked, but that's out of the airline's hands I suppose. The trip from Seattle to Denver was even worse. Bag drop took over an hour, and the plan wasn't ready when it was supposed to be. Took forever, which sucked on a red eye.

Wed, Feb 20
ONT
Ontario
DEN
Denver International
3h 49m
Sun, Feb 24
DEN
Denver International
ONT
Ontario
2h 27m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,173 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
ORD
PHL
Okay 4.3

Pros: Had pre assigned seats and American changed without saying anything.

DFW
PDX
Mediocre 2.3

Pros: None

Cons: I had very bad emotions sickness from London to Dallas TX. After I got on the plane I asked one crew member if I have any chance to switch the seat to sit by the bathroom because I am very sick, but seems no one cares. They said there is nothing they can do and tell me to get back to my seat. The whole fight I was sick. It was a horrible no crews member were asked me how I felt. No crews member checked me if I were ok. I had fever and so sick. There were late. I never have any bad fight like this forever.

HSV
ORD
Good 6.6

Pros: Crew was nice and flight enjoyable

MIA
CLT
Okay 5.0

Pros: The speed with which phone AA Platinum customer service changed me to alternative flight

Cons: Flight delayed, no honest info put forth. Fortunately changed my flight to 1:37 pm flight, original flight left after 3 pm! Got stuck with middle seat.

LAX
ORD
Excellent 10.0

Pros: Although they charged me $10 to book a seat for check in it allowed me to pick one that keep the middle seat open for my wife.

Cons: To be charged to pick a seat. You should have revealed that in you pricing.

Tue, Dec 4
ONT
Ontario
DEN
Denver International
2h 19m
Tue, Dec 11
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

RDU
AUS
Mediocre 2.6

Cons: Was late on the flight there and the flight back. Pilot messed up the landing. Price was good and that's it.

AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

ONT
DEN
Okay 5.0

Pros: Nothing

Cons: Late. Late.Late Staff seemed rude

ONT
DEN
Mediocre 2.0

Cons: Due to all the delays on my first flight I just decided To re-book a different flight back I will never fly with this company again terrible the only reason they get a star because I can’t give them nine terrible

Thu, Dec 6
ONT
Ontario
DEN
Denver International
2h 19m
Tue, Dec 11
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 6 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ONT
DEN
Okay 5.0

Pros: Nothing

Cons: Late. Late.Late Staff seemed rude

DEN
DTW
Excellent 10.0

Pros: I really like this a-la-carte method- you only pay for what you want. This was an extremely cheap flight ($126RT) and you pay for any upgrades- which we did not require as we travelled with just a backpack for a long weekend to Colorado. The backpack was well within the measurements they allot for the FREE personal item, so we didn’t even have to pay for the carry on as it stowed under the seat in front. The staff was funny and joked over the speakers, they were helpful and smiling.

Cons: Nothing to complain about. That’s the way to do it, Frontier!

LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

ONT
DEN
Excellent 8.6

Pros: Early, friendly staff

Cons: No WiFi

Sun, Dec 9
ONT
Ontario
DEN
Denver International
2h 19m
Thu, Dec 13
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ONT
DEN
Okay 5.0

Pros: Nothing

Cons: Late. Late.Late Staff seemed rude

ONT
DEN
Mediocre 2.0

Cons: 5 hour delay, horrible last minute communication. Second time in a row this has happened with Frontier. Will never fly them again at any price.

RDU
AUS
Mediocre 2.6

Cons: Was late on the flight there and the flight back. Pilot messed up the landing. Price was good and that's it.

AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

ONT
DEN
Excellent 10.0

Pros: Boarding was fast, Polite staff, Very nice crew.

Wed, Nov 28
ONT
Ontario
DEN
Denver International
2h 06m
Sun, Dec 2
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
FRA
IAH
Okay 5.3

Cons: No smiles with any of the cabin crew

ONT
DEN
Excellent 10.0

Pros: I didn't fly.I bought the ticket for my son. He had no complaints. You should ask in your questionnaire if the booked flight was for self or someone else.

ONT
DEN
Excellent 10.0

Pros: We were on time and the flights were excellent. Liked the way the pilot and the crew interacted

ONT
DEN
Mediocre 2.0

Cons: TSA took forever, other than that. My flight boards at 0540 and I got there exactly at 0545. The plane already made its way to the runway and wouldn't wait an extra 10 mins for passengers to enter.

ONT
DEN
Good 7.3

Pros: Upon arrival at my gate departing to Durham with a 2 year old handful. I was excited to hear the attendant call for travelers with small children to board first. The thought of boarding at the same time as everyone else was giving me anxiety.

Cons: Once I shuffled through tons disgruntled travelers because of my "child privilege" the attendant rolled her eyes and took a deep breath at the amount of time it took me to get to my ticket. Mind you, it makes sense I would have it somewhere convenient, but like I said single traveller, 2 year old handful. She scanned my ticket and flogged her hair in the air telling me take my stuff to the front of the plane. While the other attendant tagged all my items.

Wed, Dec 12
ONT
Ontario
DEN
Denver International
2h 07m
Sun, Dec 16
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ONT
DEN
Excellent 10.0

Pros: I didn't fly.I bought the ticket for my son. He had no complaints. You should ask in your questionnaire if the booked flight was for self or someone else.

ONT
DEN
Mediocre 2.0

Pros: 2.5 HR layover lost bag

ONT
DEN
Mediocre 2.0

Cons: TSA took forever, other than that. My flight boards at 0540 and I got there exactly at 0545. The plane already made its way to the runway and wouldn't wait an extra 10 mins for passengers to enter.

ONT
DEN
Excellent 10.0

Pros: Great staff.

Cons: A crying baby that say behind me.

PNS
ORD
Excellent 8.0

Pros: Smaller plane was awesome. Flight service great. Checkin easy.

Cons: We are okay with seat area but would ask that united freeze seat backs. The inconsiderate bumpkins in front of us put seat back and then leaned forward the whole flight. we could not even put our tray table all the way down. Coke spilled all over us in turbulence as liose tabke bounced significantly more than if set in place. Give people rude, freeze saet so cant recline or remove tray tables so we dont hurt ourselves due to rude people.

Sat, Jan 5
ONT
Ontario
DEN
Denver International
6h 05m
Tue, Jan 15
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,442 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

ATL
SFO
Good 6.4

Pros: Better than average entertainment system for domestic flights.

Cons: Boarding done against logic: my seat was in the last 5 rows of the cabin and I was scheduled to board in the final group. When I got to my seat the first 30 rows were nearly fully, but the back of the plane was half empty. The whole time the gate agent was urging passengers to move faster through the aisle, but Delta should really rethink its boarding strategy. It shouldn't take 40 minutes to board a 757.

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

Tue, Jan 15
ONT
Ontario
DEN
Denver International
2h 23m
Tue, Jan 22
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SAT
DEN
Mediocre 2.0

Cons: Soooo bad both flights were deleted.

AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

DEN
DCA
Okay 4.0

Pros: I got to DC in one piece.

Cons: Seats are REALLY uncomfortable as they're thin and don't recline, no USB plugs in plane or Wifi available. Lots of turbulence on this flight which sucked, but that's out of the airline's hands I suppose. The trip from Seattle to Denver was even worse. Bag drop took over an hour, and the plan wasn't ready when it was supposed to be. Took forever, which sucked on a red eye.

LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

ONT
DEN
Okay 5.0

Pros: I liked that there were no issues with my flight I was able to just board , get there and have no problems

Cons: I don’t like the fees for everything. It kinda just made me annoyed that there were fees attached to everything that doubled the cost of my flight.

Mon, Dec 3
ONT
Ontario
DEN
Denver International
2h 07m
Thu, Dec 6
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
PNS
ORD
Excellent 8.0

Pros: Smaller plane was awesome. Flight service great. Checkin easy.

Cons: We are okay with seat area but would ask that united freeze seat backs. The inconsiderate bumpkins in front of us put seat back and then leaned forward the whole flight. we could not even put our tray table all the way down. Coke spilled all over us in turbulence as liose tabke bounced significantly more than if set in place. Give people rude, freeze saet so cant recline or remove tray tables so we dont hurt ourselves due to rude people.

ONT
DEN
Excellent 8.6

Pros: This was a short flight. The only issue was the boarding. Took a while for me to get to my seat.

FRA
IAH
Okay 5.3

Cons: No smiles with any of the cabin crew

ONT
DEN
Excellent 10.0

Pros: Sincerity and kindness of flight crew.

Cons: Helping another person because she spoke no English set me back on my plans.

ONT
DEN
Excellent 10.0

Pros: We were on time and the flights were excellent. Liked the way the pilot and the crew interacted

Sat, Apr 13
ONT
Ontario
DEN
Denver International
6h 57m
Thu, Apr 18
DEN
Denver International
ONT
Ontario
2h 15m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,173 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
LAX
ORD
Excellent 10.0

Pros: Although they charged me $10 to book a seat for check in it allowed me to pick one that keep the middle seat open for my wife.

Cons: To be charged to pick a seat. You should have revealed that in you pricing.

DFW
PDX
Mediocre 2.3

Pros: None

Cons: I had very bad emotions sickness from London to Dallas TX. After I got on the plane I asked one crew member if I have any chance to switch the seat to sit by the bathroom because I am very sick, but seems no one cares. They said there is nothing they can do and tell me to get back to my seat. The whole fight I was sick. It was a horrible no crews member were asked me how I felt. No crews member checked me if I were ok. I had fever and so sick. There were late. I never have any bad fight like this forever.

HAV
MIA
Mediocre 2.0

Pros: Nothing

Cons: Everything

HSV
ORD
Good 6.6

Pros: Crew was nice and flight enjoyable

LHR
DFW
Good 7.6

Pros: Customers service. The crew was awesome. They're good to me when I was sick.

Fri, Dec 7
ONT
Ontario
DEN
Denver International
2h 10m
Sun, Dec 9
DEN
Denver International
ONT
Ontario
2h 30m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ONT
DEN
Excellent 10.0

Cons: They crushed my luggage but replaced the carry on after.

ONT
DEN
Excellent 10.0

Pros: I didn't fly.I bought the ticket for my son. He had no complaints. You should ask in your questionnaire if the booked flight was for self or someone else.

ONT
DEN
Good 7.3

Pros: Upon arrival at my gate departing to Durham with a 2 year old handful. I was excited to hear the attendant call for travelers with small children to board first. The thought of boarding at the same time as everyone else was giving me anxiety.

Cons: Once I shuffled through tons disgruntled travelers because of my "child privilege" the attendant rolled her eyes and took a deep breath at the amount of time it took me to get to my ticket. Mind you, it makes sense I would have it somewhere convenient, but like I said single traveller, 2 year old handful. She scanned my ticket and flogged her hair in the air telling me take my stuff to the front of the plane. While the other attendant tagged all my items.

ONT
DEN
Excellent 10.0

Pros: We were on time and the flights were excellent. Liked the way the pilot and the crew interacted

ONT
DEN
Excellent 10.0

Pros: Everything went smoothly from arriving to the airport to landing and getting my baggage.

Tue, Jan 29
ONT
Ontario
DEN
Denver International
2h 23m
Thu, Jan 31
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
AUS
SEA
Mediocre 3.0

Pros: Booked only based on the boarding time offered

Cons: Hidden fees not disclosed on the Kayak website (carry on bag cost $50 each way and not included in ticket list price) Flight was delayed leaving and coming from Seattle Plane seats extremely uncomfortable

ONT
DEN
Excellent 10.0

Pros: Boarding was fast, Polite staff, Very nice crew.

LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

ONT
DEN
Mediocre 2.0

Cons: 5 hour delay, horrible last minute communication. Second time in a row this has happened with Frontier. Will never fly them again at any price.

ONT
DEN
Excellent 8.6

Pros: Early, friendly staff

Cons: No WiFi

Fri, Apr 19
ONT
Ontario
DEN
Denver International
5h 57m
Tue, Apr 23
DEN
Denver International
ONT
Ontario
2h 29m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,442 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
DTW
ATL
Okay 5.3

Pros: Delta flights are usually on time and the staff is always polite and helpful

Cons: Both my departure and arrival flight were delayed and I was not please with delay.

BUF
LGA
Excellent 9.3

Pros: Excellent flight with efficient service. Flight was on time and friendly staff

Cons: Efficiency

ATL
SFO
Good 6.0

Pros: Transfer f from first flight leg

Cons: Food and the 757 lay out

TYS
ATL
Mediocre 2.0

Cons: Sat on the tarmac for 20 Minutes, after taking off late. Arrived to my connecting gate 10 Minutes prior to scheduled departure with no delta attendants in sight and watched my plane sit at the gate and pull away with no way to get on board. Now I’m waiting unnecessarily for 4 hours on another flight.

JFK
SEA
Excellent 10.0

Pros: Boarded and left JFK on time and arrived 15 minutes early to Seattle. Love DELTA.

Sat, Apr 13
ONT
Ontario
DEN
Denver International
6h 57m
Thu, Apr 18
DEN
Denver International
ONT
Ontario
2h 15m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,173 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
LAX
ORD
Excellent 10.0

Pros: Although they charged me $10 to book a seat for check in it allowed me to pick one that keep the middle seat open for my wife.

Cons: To be charged to pick a seat. You should have revealed that in you pricing.

HSV
ORD
Good 6.6

Pros: Crew was nice and flight enjoyable

PHL
AMS
Okay 4.0

Pros: Plane was only half full

Cons: American did not allow an upgrade at gate and said they never do that but just did it less than a year ago. He said we had to call, then walked away. Plane so old no plugs to charge devices on long flight, horrible.

MIA
LAX
Mediocre 2.0

Pros: Nothing

Cons: Everything

DCA
BOS
Good 7.0

Pros: The flight was crowded, but what can you expect? Turbulence prevented beverage service. The flight arrived early but had to wait to land.

Sun, Dec 9
ONT
Ontario
DEN
Denver International
2h 06m
Sat, Dec 15
DEN
Denver International
ONT
Ontario
2h 15m
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 24 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ONT
DEN
Excellent 10.0

Pros: Sincerity and kindness of flight crew.

Cons: Helping another person because she spoke no English set me back on my plans.

ONT
DEN
Mediocre 2.0

Pros: 2.5 HR layover lost bag

ONT
DEN
Mediocre 2.0

Cons: TSA took forever, other than that. My flight boards at 0540 and I got there exactly at 0545. The plane already made its way to the runway and wouldn't wait an extra 10 mins for passengers to enter.

ONT
DEN
Excellent 8.6

Pros: This was a short flight. The only issue was the boarding. Took a while for me to get to my seat.

ONT
DEN
Excellent 10.0

Cons: They crushed my luggage but replaced the carry on after.

Tue, Feb 5
ONT
Ontario
DEN
Denver International
2h 23m
Thu, Feb 7
DEN
Denver International
ONT
Ontario
2h 33m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 11 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Okay 4.0

Pros: I got to DC in one piece.

Cons: Seats are REALLY uncomfortable as they're thin and don't recline, no USB plugs in plane or Wifi available. Lots of turbulence on this flight which sucked, but that's out of the airline's hands I suppose. The trip from Seattle to Denver was even worse. Bag drop took over an hour, and the plan wasn't ready when it was supposed to be. Took forever, which sucked on a red eye.

ONT
DEN
Mediocre 2.0

Cons: 5 hour delay, horrible last minute communication. Second time in a row this has happened with Frontier. Will never fly them again at any price.

LAS
MCO
Okay 4.3

Pros: Boarding went ok with no problems

Cons: Good thing o had an isle seat. The two people in the seats beside me were large and that made the one setting beside me take up part of my area. Part of my body was covered by her the entire flight except when I got up to go to the bathroom. Leaned into the isle most of the flight. Really annoying to have half a seat.

ONT
DEN
Mediocre 2.0

Cons: Due to all the delays on my first flight I just decided To re-book a different flight back I will never fly with this company again terrible the only reason they get a star because I can’t give them nine terrible

ONT
DEN
Okay 5.0

Pros: Nothing

Cons: Late. Late.Late Staff seemed rude

*
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