SJU - ORD

$99 Find Cheap Flights from San Juan Airport 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 Luis Munoz Marin Intl to O'Hare Intl departing on 5/23. 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 San Juan to Chicago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Chicago.
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Everything you should know

Cheapest round-trip
$165
Typical prices: $442-$222
Frontier
Sat 5/23Sat 5/30
SJU - ORD • Non-stop
Cheapest non-stop
$171
Typical prices: $478-$250
Frontier
Sat 5/30Sun 5/31
SJU - ORD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Priority Boarding ensures carry-on space.
Spirit's Wi-Fi offers gate-to-gate connectivity.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $165 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with American Airlines, Spirit Airlines and others. Average duration is 5h 18m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 96% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $157 (round-trip)
Shortest trip • 7h 16m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
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+1
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We hope you love your trip to O'Hare Intl!
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Flight Deals

Cheap Flights from Luis Munoz Marin Intl to O'Hare Intl (SJU-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl to O'Hare Intl

Sat, May 23 - Sat, May 30
Frontier Logo
7:04 pm - 11:26 pm
SJU
-
ORD
5h 22mnonstop
Frontier Logo
7:52 pm - 4:01 am
ORD
-
SJU
7h 09m
1 stop
$165Frontier
Sat, May 30 - Sun, May 31
Frontier Logo
7:04 pm - 11:26 pm
SJU
-
ORD
5h 22mnonstop
Frontier Logo
12:33 am - 6:24 am
ORD
-
SJU
4h 51mnonstop
$171Frontier
Sat, Aug 1 - Sat, Aug 15
Frontier Logo
6:00 am - 12:25 pm
SJU
-
ORD
7h 25m
1 stop
Frontier Logo
12:44 am - 6:44 am
ORD
-
SJU
5h 00mnonstop
$172Frontier
Sat, May 23 - Sat, May 30
Frontier Logo
7:04 pm - 11:26 pm
SJU
-
ORD
5h 22mnonstop
Frontier Logo
7:52 pm - 4:01 am
ORD
-
SJU
7h 09m
1 stop
$179Frontier
Sun, Aug 2 - Sat, Aug 15
Frontier Logo
4:05 pm - 11:05 pm
SJU
-
ORD
8h 00m
1 stop
Frontier Logo
12:44 am - 6:44 am
ORD
-
SJU
5h 00mnonstop
$182Frontier
Sat, May 23 - Sun, May 24
Frontier Logo
7:04 pm - 11:26 pm
SJU
-
ORD
5h 22mnonstop
Frontier Logo
12:33 am - 6:24 am
ORD
-
SJU
4h 51mnonstop
$183Frontier
Sat, May 16 - Sat, May 30
Frontier Logo
6:30 am - 6:44 pm
SJU
-
ORD
13h 14m
1 stop
Frontier Logo
7:52 pm - 4:01 am
ORD
-
SJU
7h 09m
1 stop
$189Frontier
Sat, May 23 - Mon, May 25
Frontier Logo
7:04 pm - 11:26 pm
SJU
-
ORD
5h 22mnonstop
Frontier Logo
8:05 am - 3:55 pm
ORD
-
SJU
6h 50m
1 stop
$192Frontier
Fri, May 15 - Sun, May 17
Frontier Logo
11:00 am - 11:59 pm
SJU
-
ORD
13h 59m
1 stop
Frontier Logo
10:22 am - 11:57 pm
ORD
-
SJU
12h 35m
1 stop
$196Frontier
Thu, May 21 - Sun, May 24
Spirit Airlines Logo
11:39 am - 3:49 pm
SJU
-
ORD
5h 10mnonstop
Spirit Airlines Logo
4:44 pm - 10:21 pm
ORD
-
SJU
4h 37mnonstop
$198Spirit Airlines
Booking Insights

KAYAK's insights & trends for Luis Munoz Marin Intl to O'Hare Intl flights

Get data-powered insights and trends into flights from Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport departing in May.

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

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

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

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport is February, where tickets cost $232 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $382 and $379 respectively.

Can I save money by flying with a layover from San Juan Luis Munoz Marin Intl Airport 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $337 on average.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from Luis Munoz Marin Intl 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
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and 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.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from San Juan Airport to Chicago O'Hare Airport

When to book flights from Luis Munoz Marin Intl to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Luis Munoz Marin Intl 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 San Juan Airport to Chicago O'Hare Airport flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport was $99 for a one-way ticket and $165 for a round-trip.

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

    Yes, you’ll need a passport to travel to Chicago O'Hare Airport from San Juan Airport.

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

    On your way to Chicago O'Hare Airport, you’ll fly out from San Juan Luis Munoz Marin Intl. You’ll be landing at Chicago O'Hare Intl.

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

    All the following airlines offer inflight Wi-Fi service on the San Juan Airport to Chicago O'Hare Airport flight route: American Airlines, Delta, Alaska Airlines, Alaska Airlines, Iberia, and Finnair.

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

    The Airbus A321neo is the aircraft model that flies most regularly on the San Juan Airport to Chicago O'Hare Airport flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Juan to Chicago are Southwest and Delta. With an average price for the route of $457 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 $538 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Juan Airport 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 San Juan Airport 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 San Juan Airport 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 San Juan Airport 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 San Juan Airport 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 San Juan Airport with another airline. Booking your flights between San Juan Airport 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 San Juan Airport 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 San Juan Airport 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $166 or less one-way and $276 or less round-trip.

Prefer to fly direct from San Juan Airport 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 San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl.
Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl

Monday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Tuesday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Wednesday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Thursday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Friday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Saturday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Sunday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

See more direct flights

Direct returns

Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl

Monday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Tuesday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Wednesday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Thursday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Friday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Saturday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

Sunday

American Airlines,Spirit Airlines,United Airlines, +1 more

American Airlines,Spirit Airlines, +2 more

See more direct flights

Reviews of the top 5 airlines serving from Luis Munoz Marin Intl to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from San Juan 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 Luis Munoz Marin Intl 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.
7.4
United AirlinesOverall score based on 9681 reviews
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

8.0 ExcellentAnonymous, Apr 2026
ZRH - ORD
Read more United Airlines reviews

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

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

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

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

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

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.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

I have always loved JetBlue and had no complaints on my last trip… I will always recommend then. Thank you JetBlue

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

The comfortability was very good. Except, when entering the craft the the first steward never greeted us upon entering the airplane. He spoke too fast where his words were all jumbled and difficult to understand.

Jet blue was great But the Jayak system Wasa pure nightmare and wasted so much of my time and energy by not giving me a way to access jet blue to check in the flight back I didn’t even get the number confirmation code 24 hours before. Because I didn’t receive the email with the confirmation code I could NoT CHECk IN. I spoke to a kayak third party and they informed me I could not carry a carry on, on the flight which caused me so much extra stress it was just too much. You can be sure I will not be using it recommending your site. Again.

There was a screen but no earphones that could use the older input so I could listen to anything.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Right now I’m still in Jamaica waiting on a flight to New York which I should be in New York from the 30th and I’m here in Jamaica

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

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.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Didn't make it back on American Airlines due to a maintenance issue. The communication and updates were terrible. I ended up returning on Aero Mexico which had a much nicer aircraft with a large entertainment screen with movies and shows AND they had a nice inflight meal. That was a treat after being delayed 26 hours! I think some additional flight miles, or something should be offered for that long of a delay ---it was not pleasant at all---very physical and emotional experience.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

Shut down without prior notice End up with spending lots of extra $$$

My first time experience with Spirit Air was not good at all.The reason i did not know to cancel 24Hrs before flight depature you do charge cancellation fee. It's ridiculous policy.Actually you should provide full voucher instead of charging cancellation fee. Confirmation Code# ZNVPHG Thanks Much , Rita S

That this is my second time the they cancel flights and they always wait until the last minute to let people know

Spirit is awful. Do not fly spirit. Nothing but delays, cancellations.

Nothing. We didn’t even have a pilot until one hour after our flight was set to depart and now we are waiting for a gate on a very hot packed aircraft. Spirit has lost its goddamn minds and we will never fly again. On the way down the delay went from 5 minutes to 6 hours to cancelled.

Delayed 11 hours with two being on our destinations tarmac, no compensation or refund and was told I would actually get charged a $200 cancellation fee if I decided to switch airlines for my return flight. For their inconvenience they gave a $10 meal voucher to split between two people in a airport.

Like Spirit but bad that you have to pay for water 🙃

If there are delays, it takes less than a minute for a Spirit employee to make an announcement. It’s very simple.

For a change, friendly staff at check-in and in flight.

Delayed both in takeoff and landing, trash plane no amenities, I've said it before but I'll never fly Spirit again.

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

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

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

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

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

Everything you need to know for your flight from Luis Munoz Marin Intl to O'Hare Intl

Information on your arrival and departure airports