ONT - ORD

$89 Find Cheap Flights from Ontario to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to O'Hare Intl departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Chicago, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$295
Typical prices: $513-$295
Frontier
Fri 8/28Sat 8/29
ONT - ORD • 1 stop
Cheapest non-stop
$297
Typical prices: $527-$394
United Airlines
Thu 8/20Mon 8/24
ONT - ORD • Non-stop
Top airlines
Cheapest • from $295 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 4h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $288 (round-trip)
Shortest trip • 6h 08m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to O'Hare Intl!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Ontario to O'Hare Intl (ONT-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to O'Hare Intl

Fri, Aug 28 - Sat, Aug 29
Frontier Logo
10:50 am - 8:53 pm
ONT
-
ORD
8h 03m
1 stop
Frontier Logo
9:33 am - 4:48 pm
ORD
-
ONT
9h 15m
1 stop
$295Frontier
Thu, Aug 27 - Tue, Sep 1
Delta Logo
1:06 pm - 9:30 pm
ONT
-
ORD
6h 24m
1 stop
Delta Logo
7:48 am - 12:16 pm
ORD
-
ONT
6h 28m
1 stop
$296Delta
Thu, Aug 13 - Wed, Aug 26
Frontier Logo
4:34 pm - 5:37 am
ONT
-
ORD
11h 03m
1 stop
Frontier Logo
9:33 am - 4:48 pm
ORD
-
ONT
9h 15m
1 stop
$297Frontier
Tue, Jul 21 - Thu, Jul 30
Frontier Logo
9:32 am - 12:49 am
ONT
-
ORD
13h 17m
1 stop
Frontier Logo
9:34 pm - 8:37 am
ORD
-
ONT
13h 03m
1 stop
$298Frontier
Wed, Aug 26 - Sat, Aug 29
Frontier Logo
6:00 am - 8:53 pm
ONT
-
ORD
12h 53m
1 stop
Frontier Logo
9:33 am - 4:48 pm
ORD
-
ONT
9h 15m
1 stop
$299Frontier
Tue, Jul 21 - Fri, Jul 24
Frontier Logo
9:32 am - 12:49 am
ONT
-
ORD
13h 17m
1 stop
Frontier Logo
5:46 pm - 7:32 am
ORD
-
ONT
15h 46m
1 stop
$300Frontier
Mon, Jul 20 - Tue, Aug 4
Frontier Logo
11:52 am - 5:37 am
ONT
-
ORD
15h 45m
1 stop
Frontier Logo
7:15 am - 3:14 pm
ORD
-
ONT
9h 59m
1 stop
$301Frontier
Tue, Jul 21 - Sat, Aug 1
Frontier Logo
9:32 am - 12:49 am
ONT
-
ORD
13h 17m
1 stop
Frontier Logo
7:15 am - 3:14 pm
ORD
-
ONT
9h 59m
1 stop
$302Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
1:38 pm - 5:37 am
ONT
-
ORD
13h 59m
1 stop
Frontier Logo
9:34 pm - 8:41 am
ORD
-
ONT
13h 07m
1 stop
$303Frontier
Wed, Aug 12 - Sat, Aug 15
United Airlines Logo
7:00 am - 1:10 pm
ONT
-
ORD
4h 10mnonstop
United Airlines Logo
8:06 pm - 10:35 pm
ORD
-
ONT
4h 29mnonstop
$304United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to O'Hare Intl flights

Get data-powered insights and trends into flights from Ontario to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ontario to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Chicago O'Hare Intl Airport departing in August.

What’s the cheapest day of the week to fly from Ontario to Chicago O'Hare Airport?

The average price of all round-trip flights from Ontario to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Ontario to Chicago O'Hare Airport, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Ontario to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Chicago O'Hare Intl Airport is May, where tickets cost $362 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $489 and $487 respectively.

Can I save money by flying with a layover from Ontario to Chicago O'Hare Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $412, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Ontario to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Ontario to O'Hare Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Good to know

Low seasonJanuary
Cheapest flight$89
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Ontario to Chicago O'Hare Airport

When to book flights from Ontario to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Ontario to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Chicago O'Hare Airport flights

  • How can I get Downtown from Chicago O'Hare International Airport (ORD)?

    The means of transport you choose will determine how fast you will get downtown and how much you will likely spend. If you are on a budget, take CTA public bus or the suburban public bus as a public means of transport. Consider a taxi as a mode of transfer if you are getting late for your appointment. Shared Ride Shuttle, Trains, Airport shuttles, and Car rentals are also available.

  • How early should I get to ONT Airport?

    ONT is the busiest airport in the region, thus experiencing long security lines and insane traffic. To navigate through the lines, ensure you get to the airport 2-3h before your scheduled departure time.

  • Are there onsite hotels in ORD?

    If you are looking forward to sleeping at the airport, there is one onsite hotel with a free airport shuttle connected to all Terminals via an underground walkway. The Hilton Chicago O' Hare Airport Hotel is located in Terminal 2. However, suppose you miss a room at this hotel. In that case, nearby hotels offer free bus shuttles, like Aloft Chicago O'Hare and The Crowne Plaza Chicago O'Hare Hotel and Conference Center.

  • Can I book a flight with layover options?

    If you love airline layover options, consider flying with Spirit Airlines and Frontier Airlines. Both tend to have their layover option at Las Vegas Harry Reid International Airport (LAS).

  • What is the cheapest flight from Ontario to Chicago O'Hare Intl Airport?

    In the last 5 days, the lowest price for a flight from Ontario to Chicago O'Hare Intl Airport was $89 for a one-way ticket and $295 for a round-trip.

  • Do I need a passport to fly between Ontario and Chicago O'Hare Airport?

    No, a passport isn't needed to fly from Ontario to Chicago O'Hare Airport. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Ontario to Chicago O'Hare Airport?

    When flying out of Ontario you will be using Ontario. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Ontario to Chicago O'Hare Airport?

    JetBlue, Alaska Airlines, American Airlines, and British Airways offer inflight Wi-Fi service on the Ontario to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Ontario to Chicago O'Hare Airport?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Ontario to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Ontario to Chicago O'Hare Airport?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Chicago O'Hare Airport, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Ontario to Chicago O'Hare Airport?

    There are nonstop flights from Ontario to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Ontario to Chicago, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to Chicago are Southwest and Delta. With an average price for the route of $336 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $446 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Ontario to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ontario to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $218 or less one-way and $437 or less round-trip.
  • If you have an early flight from Ontario International Airport (ONT) and sleeping in the airport sounds like a nightmare, there are nearby hotels where you can spend your night. The Candlewood Suites Ontario Convention Center, Comfort Suites Ontario Convention Center, and Azure Hotel & Suites Ontario Airport are nearby hotels. It is worth mentioning that Comfort Suites Ontario Convention Center; is the only hotel that offers free shuttle services to the airport terminals.
  • Regardless of what class service you are flying, there are onsite lounges that you can access by either purchasing a day pass or paying at the door at Ontario International Airport (ONT). Aspire Lounge is located in Terminal 2 and Terminal 4.
  • Ontario International Airport has nursing facilities for mothers traveling with their toddlers. There are two baby rooms for breastfeeding and diaper changing. One changing room is located in Terminal 2 and another in Terminal 4. These rooms have a sink, comfortable seats, a changing table, power output, and a private breastfeeding unit. In Chicago O'Hare International Airport (ORD), the mother's rooms are located in Terminal 1 and Terminal 2. You can find lactation rooms in Terminals 1 and 2.
  • If you have questions or need assistance at Chicago O'Hare International Airport (ORD), you need not worry. There are four information desks to assist. One is in Terminal 2 near gates B7 and C18, Terminal 2 near gate F1D, Terminal 3 at gate K2, and Terminal 5 on the Upper Ticketing Level and lower Arrivals.
  • If you want to freshen up before your meeting, there are shower facilities at Chicago O'Hare International Airport. You can use either shower at Admirals Club in Terminal 3 near Concourse H, Hilton Athletic Club, or at United Polaris Lounge in Terminal 1 near Concourse C.

Prefer to fly direct from Ontario to Chicago O'Hare Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Ontario to Chicago O'Hare Intl.
Find which airlines fly direct from Ontario Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Ontario to Chicago O'Hare Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Chicago O'Hare Intl to Ontario

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Ontario to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

Was fine, delayed and feels like southwest is always late

6.0 GoodAnonymous, Jun 2026
SMF - LAS
Read more Southwest reviews

Was fine, delayed and feels like southwest is always late

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight from LA to Chicago was smooth and service was very good overall.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

They lost my baggage and I am still struggling to the information and update

Requested early boarding to disinfect seat, tray table, etc. before general boarding. Instructed to board after wheelchair passengers. Waited on jet bridge behind 12 wheelchair passengers. Stopped immediately after entering plane to wait for gate agent in rear of plane cleaning a seat that was wet, got to my row and found both seats adjacent to mine already occupied, with the lack of room making it impossible for me to clean my own space and defeating the purpose of my boarding early. Cleaned the armrests and tray table as best I could.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

They didn’t offer a water, even after I asked

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Everything you need to know for your flight from Ontario to O'Hare Intl

Information on your arrival and departure airports