Find Cheap Flights from Ontario to Lambert-St Louis (ONT - STL)

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Good to Know

Average Price:
$445
(avg. price over the last 2 weeks)
Good Deal:
$335
or less (round trip)

When to Book Flights from Ontario to Lambert-St Louis

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 $335 or less.
The cheapest flight from Ontario to Lambert-St Louis was found 46 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
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 Ontario to Lambert-St Louis Flights

How long does a flight from Ontario to Lambert-St Louis take?
An average nonstop flight takes 5h 30m, covering a distance of 1544 miles.
Which airlines provide the cheapest flights from Ontario to Lambert-St Louis?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($238), United ($318) and American Airlines ($318).
Do I need a passport to fly between Ontario and Lambert-St Louis?
No.
What’s the cheapest day of the week to fly Ontario to Lambert-St Louis?
For Ontario to Lambert-St Louis, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Lambert-St Louis back to Ontario, the best deals are generally found on Tuesday, with Saturday being the most expensive.

Book cheap flights from Ontario to Lambert-St Louis (round-trip)

Airports
Origin
Ontario
$238
only
$238
Destination
St. Louis
$238
only
$238
Tue, Feb 27
ONT
STL
15h 25m
Tue, Mar 6
STL
ONT
16h 29m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ORD
Excellent 9.6

They left me alone.

Fold down tables are tiny

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

MCO
CLT
Mediocre 3.3

The flight was ok

First of all the check in lady was rude and unprofessional. The company lost y luggage resulting in extra charges When I was looking for assistance mr Prince was extremely rude, rolling the eyes and not providing support, I was lost and seeking for guidance and I had to figure it out by myself

Sat, Mar 10
ONT
STL
8h 10m
Wed, Mar 21
STL
ONT
7h 10m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

Sat, Apr 21
ONT
STL
5h 47m
Tue, Apr 24
STL
ONT
6h 30m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
SJU
MIA
Excellent 9.3

New onboard entertainment

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

DFW
FLL
Excellent 8.0

No issues at all

N/A

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

Wed, Feb 28
ONT
STL
23h 01m
Tue, Mar 6
STL
ONT
16h 29m
Trip: 7 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

MCO
CLT
Mediocre 3.3

The flight was ok

First of all the check in lady was rude and unprofessional. The company lost y luggage resulting in extra charges When I was looking for assistance mr Prince was extremely rude, rolling the eyes and not providing support, I was lost and seeking for guidance and I had to figure it out by myself

Tue, May 1
ONT
STL
7h 36m
Wed, May 9
STL
ONT
15h 57m
Trip: 9 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

BUF
MCO
Good 7.3

Flight was great. Checkin etc was great

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

Wed, May 2
ONT
STL
17h 19m
Wed, May 9
STL
ONT
15h 57m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
CLT
Mediocre 3.3

The flight was ok

First of all the check in lady was rude and unprofessional. The company lost y luggage resulting in extra charges When I was looking for assistance mr Prince was extremely rude, rolling the eyes and not providing support, I was lost and seeking for guidance and I had to figure it out by myself

BUF
MCO
Good 7.3

Flight was great. Checkin etc was great

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

ATL
DEN
Excellent 8.0

The gate agent and the crew were great to accommodate the barrage of flight changes. Once we were cleared for takeoff the flight was very smooth and the cabin crew as well as the pilots did a fantastic job to ensure timely arrival and that everyone is accommodated.

I received at least 3 emails that that the flight was delayed: by 30min, 12min and then by 1min. Of course the mobile app did not reflect this (in an effort to make things more confusing). Once we boarded it was very very hot inside and the pilot informed us that we'll get cooled as soon as they start the engines.

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

Thu, May 3
ONT
STL
7h 36m
Wed, May 9
STL
ONT
15h 57m
Trip: 7 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

IAD
SAT
Mediocre 3.6

The crew was helpful and apologetic.

They purposefully understaffed the check in counter, which you have to use. They charge for every little thing, even carry on bags and snacks. The seats might as well be lawn chairs. They are so close together everyone onboard will die from head injuries if there's an accident. I'll fly Southwest from now on.

BUF
MCO
Good 7.3

Flight was great. Checkin etc was great

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

Tue, Mar 13
ONT
STL
8h 10m
Wed, Mar 21
STL
ONT
7h 10m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

Tue, May 1
ONT
STL
5h 35m
Tue, May 8
STL
ONT
6h 17m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

DFW
FLL
Excellent 8.0

No issues at all

N/A

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

Fri, May 4
ONT
STL
17h 19m
Wed, May 9
STL
ONT
15h 57m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
CLT
Mediocre 3.3

The flight was ok

First of all the check in lady was rude and unprofessional. The company lost y luggage resulting in extra charges When I was looking for assistance mr Prince was extremely rude, rolling the eyes and not providing support, I was lost and seeking for guidance and I had to figure it out by myself

DCA
DEN
Excellent 8.0

Friendly staff

Didn't like I wasn't offered a cup of water and they nickel and dime you for EVERYTHING!

TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

ATL
DEN
Excellent 8.0

The gate agent and the crew were great to accommodate the barrage of flight changes. Once we were cleared for takeoff the flight was very smooth and the cabin crew as well as the pilots did a fantastic job to ensure timely arrival and that everyone is accommodated.

I received at least 3 emails that that the flight was delayed: by 30min, 12min and then by 1min. Of course the mobile app did not reflect this (in an effort to make things more confusing). Once we boarded it was very very hot inside and the pilot informed us that we'll get cooled as soon as they start the engines.

Tue, Mar 20
ONT
STL
5h 30m
Tue, Apr 3
STL
ONT
7h 10m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

Wed, May 2
ONT
STL
5h 47m
Tue, May 8
STL
ONT
6h 03m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
DFW
FLL
Excellent 8.0

No issues at all

N/A

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

SJU
MIA
Excellent 9.3

New onboard entertainment

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

Wed, Apr 11
ONT
STL
7h 42m
Tue, Apr 17
STL
ONT
7h 11m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

Sat, May 5
ONT
STL
5h 39m
Tue, May 8
STL
ONT
6h 17m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
SJU
MIA
Excellent 9.3

New onboard entertainment

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

DFW
FLL
Excellent 8.0

No issues at all

N/A

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

Sat, May 5
ONT
STL
17h 19m
Wed, May 9
STL
ONT
15h 57m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

DEN
ORD
Excellent 9.6

They left me alone.

Fold down tables are tiny

BUF
MCO
Good 7.3

Flight was great. Checkin etc was great

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

BUF
MCO
Mediocre 3.3

The service was Ok, but our flight was 4 hours delayed and it wasn't mechanical or weather related delay, the airline made a scheduling error, we almost missed our car rental and we didn't get to our destination til really late at night when it should been there in the daytime. Overall, won't fly with them again

Sat, Apr 14
ONT
STL
7h 44m
Tue, Apr 17
STL
ONT
7h 11m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

Sat, May 26
ONT
STL
5h 39m
Tue, May 29
STL
ONT
6h 17m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

LHR
JFK
Excellent 9.3

Great flat beds, entertainment, noise cancelling headphones. Awesome 3 course meal.

Could have made the bar area more exciting ... as Virgin Atlantic bars do.

SJU
MIA
Excellent 9.3

New onboard entertainment

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

Tue, May 8
ONT
STL
8h 10m
Wed, May 16
STL
ONT
6h 08m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

Fri, Jun 1
ONT
STL
7h 38m
Wed, Jun 6
STL
ONT
6h 03m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
LHR
JFK
Excellent 9.3

Great flat beds, entertainment, noise cancelling headphones. Awesome 3 course meal.

Could have made the bar area more exciting ... as Virgin Atlantic bars do.

SJU
MIA
Excellent 9.3

New onboard entertainment

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

DFW
FLL
Excellent 8.0

No issues at all

N/A

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

Tue, Feb 27
ONT
STL
15h 25m
Thu, Mar 1
STL
ONT
16h 28m
Trip: 3 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33843 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
TPA
LAS
Okay 4.3

Very reasonable price.

You literally have to pay for even the basic things, including for seats to recline. Cushion on seats thin and seats don't recline. 5hrs flight and No entertainment, no tv, no radio, no complimentary food...they offered a cup of water.

MKE
TPA
Mediocre 2.0

the flights and attendents were good ,flight was delayed almost 2 hours on my return flight

didnt have to pay for luggage on first flight put under seat on return flight the girl at ticket counter was rude to me and charged me 45.00 for my bag i put under my seat and she was not a pleasant person to deal with, i wouldnt fly frontier again

ORD
RSW
Good 6.0

Crew was super nice

Delayed 3 hours, boarded and was told would be another 30minutes because of mechanical issues.

DCA
DEN
Excellent 8.0

Friendly staff

Didn't like I wasn't offered a cup of water and they nickel and dime you for EVERYTHING!

ISP
MIA
Excellent 10.0

Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!

Seats are small but newly redesigned.

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Ontario to Lambert-St Louis Flight Information

Flights Arrive in Lambert-St Louis
Flights Depart from Ontario
Flight Price $238
Distance 1544 miles
Airlines Frontier, United, American Airlines
*
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