Find cheap flights from Ontario to Costa Rica

Find cheap flights from Ontario to Costa Rica

Round-trip
Economy
Ontario (ONT)
Costa Rica
Thu 2/25
Thu 3/4
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Good to know

Low season

October Best time to beat the crowds with an average 6% drop in price.

High season

June Most popular time to fly with an average 16% increase in price.

Average price round-trip

$840 (avg. price over the last 2 weeks)

Good deal round-trip

$540 or less

Good deal one-way

$258 or less

Top tips for finding cheap flights to Costa Rica

  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly to Costa Rica is August.
  • Morning departure is around 19% 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 - booking Costa Rica flights

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Top 4 airlines serving Ontario to Costa Rica

Scores according to KAYAK customer reviews

7.9
Avianca
Overall score based on 13,162 reviews
8.0
Boarding
8.0
Comfort
8.3
Crew
7.9
Entertainment
7.5
Food
Airline reviews

Cons: "the sandwich was cold, they should have used the microwave"

Cons: "Fue un avión no adaptado a nuestros tiempos, sin entretenimiento a bordo, ni siquiera tenía para conectar el celular. Un servicio low cost."

Pros: "Nothing"
Cons: "Everything"

Pros: "Service"
Cons: "Na"

Pros: "Good service from the crew and the boarding process was made quick and punctual."

Pros: "Just anything. I have better trips taking a crowded bus."
Cons: "They had 3 boarding trips in the same gate it was a mess, the saddest sadwichch with the mediocre orange juice was the best option, angry crew."

Pros: "Easy check in, and boarding process."

Pros: "Friendly crew, arrived earlier than expected. Offered to excellent assistance to my mom with the wheelchair"
Cons: "Food wasn’t good. During the stop in Guatemala didn’t change planes so had to wait for the maintenance staff to clean the plane before using bathroom. No water during stop and had to change seats"

Pros: "Los aviones cómodos, con buen espacio para estirar las piernas. A pesar de ser un vuelo de 2 horas te dan comida, algo que las demás no hacen."
Cons: "Podrían mejorar el sabor de la comida que sirven, ya que no es de las mejores."

Cons: "At the time of boarding the crew members started going by group. This only lasted 1 min. Everybody started getting in a line without regarding group or any type of particular order. The crew members did mind and just kept boarding people. Very poor management and lack of authority."

Pros: "I liked that the crew where nice and congratulate the mountain bike team of Costa Rica who had won second place in the panamerican games"
Cons: "I push the "call the stewart" bottom and they never came to me.."

Pros: "Nos encanta el servicio al cliente de los que nos atendieron en el vuelo, excelentes"

Pros: "very nice experience nice flight food and beverages"

Pros: "Avianca es la aerolinea que prefiero y continua siendo"
Cons: "Las aeromozas tienen muy mala actitud, parece que uno les está pidiendo plata."

Pros: "La atención y la comida"

Pros: "Connections very easy. Flight arrived early. In-flight service exceptional."

Pros: "Crew, food."
Cons: "The airplane's entertainment equipment remained in the 90s, and just one station worked. No USB for charging, no even individual screen."

Cons: "The flight attendants were friendly and helpful during an unscheduled delay"

Pros: "comfort crew entertainment passable for the age of the plane clean quick boarding"
Cons: "not enough food.............................................."

Pros: "Flight crew very professional."
Cons: "Flight late leaving Bogota and late arriving in San Jose."

Pros: "The trip was on time, plane was clean, crew was nice, duty free is excellent"

Pros: "Nice crew"
Cons: "The food"

Pros: "It was hard to not laugh at the gate confusion, time confusion, and clear general incompetence of the thousands of airport staff."

Cons: "The flight was delayed so they put me in another flight. When I already had the confirmation, the people at the counters said I could not fly because the flight was oversold. I had to complain strongly and asked to see the manager. Finally I was able to fly, but after much arguing and stress. Poor experience."

Pros: "fine"
Cons: "no issues. all fine."

Pros: "Nothing"
Cons: "El equipo del Aeropuerto de AVIANCA guatemala, pone muchos peros a las personas que no pertenecen a LifeMiles y hay casi hay que exigir que te hagan valer tu Millage Plus, y eso que se supone que son parte del mismo grupo Star Alliance. A mi parecer dejan mucho que desear. Si por mi fuera No volvería a volar por avianca."

Pros: "The most was the attention of the flight attendant and how fast and save we landed. Good vibes"

Pros: "The flights wers on time"

Pros: "El espacio en los asientos"
Cons: "La comida no estuvo muy buena"

Pros: "Flight attendants were friendly"
Cons: "Delayed on the runway for an hour after a delay in the airport. My friend missed his connection because of the delay and was still forced to pay his own hotel."

Cons: "The crew allowed a drunk man to take the plane. It was a terrible experience to travel next to him. Also, the gate for taking the flight change with no previous notification. I realized of this a few minutes before taking the flight."

Pros: "The good timming"
Cons: "El aircraft was totally awfull. too mcuh noise, toilets smell bad, no coffee because machine was broken... such a bad experience"

Pros: "On time"

Pros: "Staff help us tho resolve some troubles with wrong name on check in."
Cons: "Wrong name in check in on line"

Pros: "Everything was fine."
Cons: "We did not know our ticket-price included breakfast. However, the flight had no vegetarian option, so we passed."

Cons: "The airplane was terribly dirty and disgusting"

Pros: "Impressed from the checking to the smooth landing. Clean airplane, pleasant stewardesses, on time."

Pros: "Nothing"
Cons: "2times was cancelled and I have to Stay 2 nights in Bogota"

Pros: "I am impressed! I will be booking through Avianca again!"

Pros: "Being moved to a copa fligth"
Cons: "They had us 3hours con the plain and after that it was cancelled. Several people lost a full day of work no responsability from Avianca."

Pros: "Same as above."

Pros: "Got lucky with a free upgrade to 1st class and the crew always helpful."
Cons: "Tried to add an additional bag for 50 to 70 Lbs and website said $50 USD and they wanted to charge $100 USD for some reason. end up removing stuff from the bag to not get charge an extra $60 USD"

Cons: "Really bad orange juice. Blankets were gone, they claimed to run out of them. Didn't got the Costa Rica customs papers."

Pros: "Crew was nice and individual tv screens were great! Free wine."
Cons: "God tasted like cardboard."

Pros: "Personal TV's on flight from NYC to San Salvador"
Cons: "Boarding in San Salvador was confusing because there were two flights boarding at the same gate at the same time. The screen for our flight did not indicate that the flight was boarding, so we thought only the other flight was boarding. We asked three different Avianca employees where and when our flight was boarding. All three gave different answers, none of which were correct. Luckily, we were able to figure out on our own where to go in time to catch the flight."

Pros: "The complimentary blankets and pillows"
Cons: "The crew constantly putting our window shades up"

Cons: "2 and a half hours of company owned delay. Very little explanation in situ."

Cons: "I am tired on the cheese snadwiches that Aviancas gives in every flight. Why not to offer fruit plates instead?"

Pros: "All was amazing"

Pros: "Crew was great!"

Cons: "I didn’t take the flight. Due to a change in my post-flight quarantine lodging arrangements in Salt Lake City, I needed to change the date of my flight. Delta directed me to Aeromexico to make any changes. Aeromexico refused to allow any changes. So I was forced to not take the flight and buy a new ticket for a later date."

Pros: "Great crew members. Very friendly and helpful."

Pros: "The crew was amazing and the flight was fast and smooth. Seating was great"
Cons: "Nothing needs to be corrected"

Cons: "It’s time to update the snacks, bu thank you for serving more than just peanuts. I was very cold on the flight - unusual, but definitely very chilly."

Cons: "WiFi"

Pros: "Crew was extremely friendly"
Cons: "Cleaner window"

Cons: "No milk available."

Cons: "No customer service they do not care and it shows"

Pros: "The flight crew was friendly and communicated well. They also had a friendly attitude."
Cons: "A 1 hour wait for wheelchair assistance in Houston and then a 30 minute delay for wheelchair people to take my mom to baggage claim. Then the wheelchair attendant kept complaining she wouldn't receive a good tip to take us to the Lyft pickup area."

Cons: "It was late"

Pros: "Great experience!"

Pros: "The crew was amazing"
Cons: "Ran over 2 hours late with no explanation"

Pros: "Crew was nice, food and entertainment was nice."
Cons: "Seats could’ve been more comfortable."

Cons: "Food was blah, not hot and watery"

Pros: "The crew was amazing"
Cons: "Everything it’s perfect"

Pros: "Fantastic crew!"

Pros: "Crew was amazing"
Cons: "If you could figure out how to get online wifi..."

Pros: "The crew was amazing my daughter is still talking about how nice they were to her."
Cons: "Nothing at all!"

Pros: "The crew"
Cons: "Very small plane"

Pros: "Speedy check in. Friendly crew."
Cons: "The tv kept having problems. In all three seats we were in. We could only watch tv but the audio kept cutting out. Annoying to say the least"

Cons: "I got bumped from this flight a couple of hours before departing."

Pros: "Crew"

Pros: "Original flight delayed by more than 2 hours. Rescheduled and got to Bos with a layover"
Cons: "Delta rescheduled me automatically and I woudl not have found out if I did not call their re-booking center."

Cons: "Crew wasn’t very friendly"

Pros: "I will always fly Delta. I have tried other airlines and they don't conmpare to Delta's service"

Pros: "Eventually made it home. At 1am, when it should have been 1130pm."

Pros: "Crew was very helpful."
Cons: "On the way to Minneapolis the plane was BEYOND PACKED. There was no room for even my backpack."

Cons: "Being delay"

Pros: "No issues boarding as a group of 6, including one child. We all had at least a personal item and/or a carry-on to stow. The flight was easy, comfortable, and the free movies were current and definitely helped pass the time."
Cons: "We were seated right behind the delta comfort+ and saw the special snacks they got. Being teased by that is not a huge deal, just a little disappointed by the regular snack selection, the snack mix was definitely subpar."

Pros: "Getting home in one piece"
Cons: "Why do airlines schedule 2 flights for the exact same time in the exact same gate? Just to watch passengers squeeze in like cattle??"

Cons: "Boarding was rushed and the crew barely announced the sections. It took an incredibly long time to bard the longest that I have ever experienced and I couldn't point to any reason why."

Cons: "Terrible boarding process. I booked the tickets months ago, but didn't have seats until the last minute. They didn't even put my wife and I together, but sandwiched 2 people between us. Boneheads."

Pros: "Special staff great pilots snacks free movies safety"
Cons: "Everything was great"

Pros: "Friendly cabin crew"

Pros: "Staff lovely"
Cons: "Flight delayed so we got bumped to a later connecting flight An eight hour trip became a 12 hour trip"

Pros: "Had tv & movies available but kept losing signal"
Cons: "Terrible turbulence. Very rough landing. No beverage service. Late taking off."

Pros: "Boarding was easy, flights on time Wi-Fi available (although I didn't use it)"
Cons: "Seats rather crowded in coach, small plane so it was also a bit noisy"

Pros: "The variety of what you could listen to or watch. Liked the way the seats reclined. Plenty of leg room (I am short)."

Pros: "I had a window seat"
Cons: "bumpy flight"

Pros: "New equipment"
Cons: "Late departure"

Pros: "First flight"
Cons: "Too packed"

Pros: "Flight was on time and even landed early. Boarding was seamless with bag tag. Seats were comfy. Crew was professional."
Cons: "A drink with no napkins? I know airlines need to cut costs but what if I spilled my drink or want to wipe my hands after eating pretzels Delta? You can still provide napkins."

Pros: "friendly courteous staff"
Cons: "didn't have the tapas box, or the crave box or any food box for sale...the flight attendant did give me extra cookies and pretzels"

Pros: "Crew was wonderful"
Cons: "Nothing- good flight, I couldn't sleep but that wasn't your fault"

Pros: "The food has REALLY improved!! GREAT CREW!"

Pros: "On time, efficient boarding, no lines or delays. Attendants not as top notch as on the domestic leg but we're friendly and efficient. Loved the seat back entertainment options, watched a movie, listened to 2 podcasts, and enjoyed some excellent blues music. All while tracking he flight progress. Made the 6 hour flight go by quickly and not mind the bumpy air in the tropics."

Cons: "Delayed 12 hours"

Pros: "Flight attendant was very nice."
Cons: "My 6 pm flight left at 8:19. Debris wasn't cleaned from plane between flights. Want some French fries? Lady had two barking dogs in first class. I was in first class. It wasn't worth the extra money we paid to be in first class."

Pros: "The crew friendly,boarding was easy the flight was comfortable they even went around and gave blankets they could do a little more with the snacks. There were TVs so the entertainment was really good. Seats didn't go back, wish they did."
Cons: "I wish they had more snacks like JetBlue but all was fine."

Pros: "The crew was awesome and boarding was quick"

Pros: "Crew was very accommodating but all three of us passengers were very close together, Thank goodness we were all considerate of the other."
Cons: ", Thank goodness we were all considerate of the other.Just need a little more elbow room for a comfortable flight."

Pros: "Yes!"
Cons: "No more comments!"

Pros: "Crew was awesome...love AA crew! Always and this time superb!"
Cons: "Leg room gets worse and worse...boarding sucked since they took our bags and we felt like it was only us that were singled out!!!"

Cons: "Delay of 1 h at Philadelphia to Syracuse !!"

Pros: "On time, main cabin extra was great, crew was nice, entertainment was great."
Cons: "No criticism"

Cons: "INTERNET is difficult to figure out in these AA flights"

Pros: "We finally got here."
Cons: "Communication about the delay , which gate we were leaving from, having an entertainment system that worked (they said I could use my device with the app downloaded, but it did not work, I kept getting an error)."

Pros: "Not much crew stayed in back almost the whole 6 1/2 hr flight and seemed not to friendly"
Cons: "It would have been better if they had departed when they said they were going to after a delay. Flight was delayed first 1 hr then two more hours. The airline finally posted that it would depart a 4 PM and we didn't even start boarding until 5PM. Then they tried to rush us on so that everyone was standing on the HOT jetway for 10 min waiting to get on the plane. Plane didn't take off til 5:35 PM. Over all on this trip I had three flights that were delayed. I'll think twice before taking American Air again."

Pros: "Crew was nice, entertainment was good"
Cons: "Food was mediocre"

Pros: "Once boarding, we didn’t wait long for take off."
Cons: "Being on time."

Pros: "Customer service was excellent"
Cons: "Great service always"

Cons: "My luggage was delayed. I received it the day after"

Pros: "The agent at checkin was so kind, nice, professional and superb...I will always fly American Airlines....you have the best checkin agents, best gate agents (super funny yet professional) and also the flight crew was absolutely amazing!"
Cons: "baggage claim in Costa Rica is terrible service...but that is the airports fault since this happens with other airlines.....something has to0 change!!!!"

Pros: "4 flights and all of them in middle uncomfortable seats. I requested aisle seats many times and counter agents were unhelpful and rude."
Cons: "Better seat options and more comfortable seats"

Cons: "It ridiculous how small the seats and aisles are. It not fun flying any more"

Pros: "Very good service"
Cons: "Ok"

Pros: "The crew was very nice and friendly"
Cons: "There was a technical difficulty with the plane, which made a short delay in our flight."

Cons: "Entertainment is becoming too complicated for us old heads. Food, I still resent having to pay for something that is ed to be included in my fare."

Pros: "0ntime quick boarding"
Cons: "cost to check baggage"

Pros: "Quick flight. Took longer boarding than air time!"

Pros: "Must wider seats on this aircraft"
Cons: "Inflight monitor broken"

Pros: "On time departure, this flight tends to get delayed, not this time. Good service and pleasant flight."
Cons: "I prefer personal entertainment systems."

Cons: "This was a connecting flight, and I arrived at the gate from American Airlines flight 2656 in plenty of time to make the connection. However 15 minutes after arriving at my designated gate it was announced that American Airline flight 4874 would be delayed for 15 minutes for maintenance, which was fine, I want the plane I am flying in to be in perfect working order. So the departure time went from 2:32 to 3:00, then it went from 3:00 to 4:01. Next, it was announced that there had been a gate change. Once we all arrived and the passengers had deplaned and it was announced we could board it was closing in on 4:30. Now once we were on the plane we sat for one and a half hours with no food or water. Finally, they announced that the flight attendant would be coming around with water which was poured from bottles into cups and cookies or pretzels, what, did the plane crash on a deserted island and I not know it? After more sitting, we finally took off, I arrived at my destination 4 hours later than planned. I think this could have been handled more efficiently, and with more aplomb than the standard "we apologize", that does nothing for me and my trip went from 1 hour to 4 with me finally arriving at the Roanoke airport at 6:45."

Pros: "Comfort, promptness, and food."

Pros: "Friendly staff and helpful"
Cons: "Did not fly out of Ontario, I was being led to fly out of LAX since there was a delay. Ended up flying out of John Wayne Airport."

Pros: "great"

Pros: "everything but the cabin temperature. it was very hot and uncomfortable."
Cons: "Too warm in the cabin."

Pros: "Can’t say anything good"
Cons: "When boarding crew was rude because carry on did not fit the overhead compartment. No options to choose from for entertainment. Flight was delayed almost an hour while sitting in plane. Food options almost nonexistent"

Cons: "On time"

Pros: "Came around a few times with drink service. Friendly crew"

Pros: "The flight was on time. It was smooth and we had absolutely no problems"

Pros: "I like the in-flight attendants as they are courteous even though it was late night flight. I cannot complain at all."
Cons: "Gate agent refused to try to put my 9-year-old son to sit next to me. She said "It's full flight" right out of the bat. Well, even if that's the fact of the matter, at least, be kind in responding to customer's inquiry. My son was seated across the isle, same row, but in reality the row was not even straight. And as a little boy, he cannot sleep straight and he has to lean to a stranger's shoulder? Thankfully I got a nice gent who should have sat next to him who were so kind to exchange seat with me. It's all in the attitude.... hopefully my attitude is not as bad :-) But maybe the gate agent was so tired for it was the last flight from ONT, at 1 AM. Bless her heart! Thank you though for your help to get the plane leave on time.!"

Pros: "We arrived safely."
Cons: "I don’t like having to pay for luggage or upgraded seats, WiFi. All money makers. Wish every airline could be like southwest."

Pros: "The staff at Ontario International was very helpful."
Cons: "No real complaint of the flight or staff. Next time I will upgrade my seating."

Pros: "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."

Pros: "Everyone was courteous and professional"

Cons: "Everything was great"

Pros: "Nice and clean and seats were comfy"
Cons: "No outlet to charge devices"

Pros: "The crew was very friendly and accommodating. The food as usual just snack type food for purchase as expected. The entertainment system malfunctioned and we could not watch the movie they offered. However one flight attendant was very nice and gave my kids special cookies. Nice touch!"

Pros: "The agent at the desk helped seat us together after our disastrous 1st flight. Crew was friendly & upbeat, great service."
Cons: "Old plane No entertainment No place to plug in/charge devices."

Pros: "Mostly everyrhing"
Cons: "Food was so so"

Pros: "Crew was friendly and accommodating to handling my wheelchair and helping me to my seat most uncomfortable seats I have ever used. My neck was sore before we even took off."

Pros: "the clerk at the boarding desk was kind"
Cons: "delayed"

Cons: "The plane never cooled off for the entire flight"

Pros: "The boarding was super fast as well as exiting, WOW!"

Pros: "Everything was great to me"
Cons: "The flight was packed"

Pros: "I like the comfortable chairs and screen touch screen in the seat in front of me"

Cons: "Mejorar el snack"

Cons: "The flight was late due to flight attendants coming from another plane! American Airlines is a billion dollar company; they should have had flight attendants on stand-bye. Then we had to wait an hour just to get out luggage..."

Cons: "Food"

Pros: "Inflight movies"
Cons: "None"

Pros: "I was asleep."
Cons: "The seats were very cramped."

Pros: "Amabilidad de la tripulacion"
Cons: "Podrían dar comida, el viaje no es tan corto. Aire acondicionado demasiado frío, muchos pasajeros solicitaron regular l temperatura, no habían suficientes mantas"

Pros: "Have seatback TV and arrived on-time"
Cons: "Sitting in window seat"

Pros: "The crew was so polite and helpful."
Cons: "Nothing could be improved for this short flight!"

Cons: "Flight was canceled due to United's mismanagement of crews."

Pros: "Clean, comfortable and on time."
Cons: "Nothing"

Cons: "No screens in the seats. Food options are the usual limited fair"

Pros: "Crew & flight attendants very courteous and apologetic; complisnacks while waiting for delayed flight"
Cons: "Flight delay!!"

Pros: "Comfortable seats with screens"
Cons: "Mediocre snack"

Pros: "Fast boarding in good order"

Cons: "flight was delayed. tug car didn’t work"

Cons: "Slow boarding, no food no drinks, no tv."

Pros: "Nothing"

Pros: "Más espacio, al menos una película que ver, y algún bocadillo por ser un vuelo de tantas horas"

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

Cons: "Arrival time was delayed 2 hours and my itinerary fell apart. United could not assist me. I bought a ticket from Alaska Airlines from a different airport.to JFK."

Pros: "Ontario airport is so easy and convenient"

Pros: "Easy, convenient and everyone is nice and accommodating. We always get to SFO under an hour"

Pros: "The plane took two hours to leave the ground due to weather. This was unfortunate and made the passengers uncomfortable but it was not the fault of the airline."
Cons: "The airline gave all the passengers access to the movies and television channels."

Pros: "The fact that I got fully refunded, even though I still lost out on $500+."
Cons: "My flight was supposed to leave at 12, and all that Kept happening was me receiving text messages about delays pushing my departure time back to 5:35pm. I missed a big birthday event I was throwing for my class that I teach, lost out on money spent for the event and missed out on all the memories made that night. I never got to leave, ended up cancelling my flight. What a waste of time. Seems to always happen when I fly through United."

Pros: "on time"

Pros: "Que acomoden a las parejas juntas."
Cons: "Asiento incomodo"

Cons: "2 hour delay"

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."

Cons: "Snack offering was caramely sugar cookie"

Cons: "Fligh delay."

Pros: "I was allowed to get off the aircraft to collect a bag I left behind"

Pros: "Attendants were amazing"
Cons: "We spent the whole delay on the plane and wasn't notified of a problem until after an hour. A lot of my time was wasted. That's not okay. Keep your customers informed."

Cons: "The plane landed to San Francisco earlier than scheduled, but we could not get off the plane due to the gate not available. We were stuck on plane for about half an hour and I really worried about making my connection. I hope such arrangements are conducted more smoothly."

Pros: "Nice and comfy seats, good service on plane, fast boarding"
Cons: "No good food and the entertainment was not the beat"

Cons: "Same. No ffood ..poor Service and allso charging. To much for extra weight. $200 for 3 extra pounds. Ridiculous. Also charged for one check in bag..Todo much"

Cons: "Viajar en United es desastroso. Los asientos son demasiado pequeños, yo mido1.57 metros y no me podía ni mover."

Pros: "The crew were nice though exasperated with cramped new planes and crowded restrooms. Flight was on time"
Cons: "After three years of flying all around US, realized United is the worst of the three major legacy carriers. I'm star alliance gold and it's still a painful experience. Crew admitted in latest redesign of planes they've managed to squeeze another six seats in coach. My seat wouldn't go back but even if it did, would feel too guilty for person behind to do it - so little legroom on newer planes. They've also cut down on restrooms so for most of the flight there was a line of 5-6 people waiting in the aisle. American Airlines seems to have older planes but at least decent legroom (and I'm not tall - anybody over 5'10 would have to sit at an angle on new United planes!). Been very impressed by Delta's service lately. United feels more like Spirit"

Pros: "Timely...and pilots updates of flight time"
Cons: "3 stewardess slow service"

Pros: "Plane was delayed over 2 & 1/2 hours for no apparent reason"

Pros: "Flight Attendants were nice."
Cons: "The flight was expensive and they wouldn't let us or anyone place carry ons in the over head bin. It was an expensive ticket and didn't include checked bags ($25 more). Carry-ons wound up being "stowed". It would have been nice to know before I bought the tickets that I needed a smaller carry on."

Cons: "It was delayed 3hrs!"

Cons: "I paid good money to be back by 6am however I was delayed and had flights cancelled which made me get home 10 hours later than I should have. This was an overnight flight, so all the places to buy food were closed- United didn't offer snacks or blankets or really anything for the troubles. There were kids also stranded."

Pros: "The staff was really polite and were willig to answer all questions with a smile."
Cons: "The seat I was on could not be reclined. This was most unpleasant because it was an overnight flight. You should earn the clients - even economy passengers - when this seat is the one being assigned to them. I would payed beforehand to get a more comfortable seat if I'd known I was to fly on a no-reclining seat on an overnight flight."

Pros: "Nothing"
Cons: "They delayed the flight due to "operational difficulties". I understand this happens, however, their communication towards customers was unacceptable. They first announced a 20 min delay, followed by another 30 min, then 30 more and then 30 more than then 30 more! They basically kept us at the gate for 2 1/2 hours until the found another plane. For a business like United, and flying out of their hub this is completely unacceptable. We ended up leaving at 11pm for a flight scheduled at 8. They didnt give anything in the plane to make up for it. No food, no free wifi, nothing."

Pros: "We were not given seats together..."
Cons: "Busy and not well managed and we bought seats well in advance"

Pros: "Terrible"
Cons: "Everything"

Pros: "Once on the plane, the crew were great."
Cons: "not much leg room"

Cons: "I felt like tuna in a can."

Cons: "Ticket agents did not communicate with passengers on why there was a delay and weren't willing to help passengers find alternate routes to their destination."

Pros: "The crew was nice."
Cons: "Less leg room than any other airline, complementary food is real bad, they charge you for everything, movies, alcohol and food, in other airlines they do not charge you for none of the above!"

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

Pros: "Nice, respectful & very helpful attendance tall man @ the gait in SF prior boarding time. He help us getting the right seat for the trip. He was awesome help."
Cons: "Ontario delayed trip of almost 2 hrs. We could use that time more productively. Then, the other trip was a rush to made in time for Orlando. No entertainment in the plane."

Read more about Avianca
COVID-19 information

Safety measures for airlines flying from Ontario to Costa Rica

Airlines flying from Ontario to Costa Rica have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Ontario to Costa Rica

Mandatory masks

Masks required on board, masks provided on flights from Ontario to Costa Rica

Social distancing seating

Middle seats unavailable to book on flights from Ontario to Costa Rica

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Ontario to Costa Rica

Book cheap flights from Ontario to Costa Rica

Recent round-trip flight deals

4/27
Tue
2 stops
Delta
21h 04m
ONT - LIR
4/29
Thu
2 stops
Delta
21h 20m
LIR - ONT
4/27
Tue
2 stops
Delta
24h 29m
ONT - LIR
4/29
Thu
1 stop
Delta
23h 31m
LIR - ONT
3/6
Sat
2 stops
Delta
22h 30m
ONT - LIR
3/13
Sat
1 stop
Delta
21h 21m
LIR - ONT
4/10
Sat
1 stop
United Airlines
11h 30m
ONT - SJO
4/16
Fri
1 stop
United Airlines
15h 55m
SJO - ONT
4/10
Sat
1 stop
United Airlines
11h 30m
ONT - SJO
4/16
Fri
2 stops
United Airlines
14h 47m
SJO - ONT
4/1
Thu
1 stop
American Airlines
20h 18m
ONT - SJO
4/6
Tue
1 stop
American Airlines
9h 38m
SJO - ONT
3/20
Sat
1 stop
United Airlines
8h 51m
ONT - SJO
3/28
Sun
1 stop
United Airlines
29h 45m
SJO - ONT
3/16
Tue
1 stop
American Airlines
8h 52m
ONT - SJO
3/23
Tue
1 stop
American Airlines
9h 36m
SJO - ONT
3/18
Thu
2 stops
American Airlines
21h 39m
ONT - SJO
3/22
Mon
1 stop
American Airlines
9h 36m
SJO - ONT
3/24
Wed
2 stops
United Airlines
24h 58m
ONT - SJO
3/31
Wed
2 stops
United Airlines
20h 55m
SJO - ONT
4/27
Tue
1 stop
United Airlines
11h 21m
ONT - LIR
4/28
Wed
1 stop
United Airlines
15h 35m
LIR - ONT
3/6
Sat
2 stops
American Airlines
24h 10m
ONT - LIR
3/13
Sat
2 stops
American Airlines
23h 40m
LIR - ONT
4/27
Tue
2 stops
United Airlines
13h 55m
ONT - LIR
4/28
Wed
2 stops
United Airlines
27h 25m
LIR - ONT
3/9
Tue
1 stop
American Airlines
20h 44m
ONT - LIR
3/17
Wed
2 stops
American Airlines
20h 31m
LIR - ONT
4/9
Fri
2 stops
American Airlines
18h 28m
ONT - LIR
4/11
Sun
1 stop
American Airlines
21h 04m
LIR - ONT
6/5
Sat
1 stop
Delta
12h 14m
ONT - SJO
6/13
Sun
1 stop
Delta
11h 16m
SJO - ONT
4/27
Tue
1 stop
Delta
28h 39m
ONT - LIR
4/29
Thu
1 stop
Delta
23h 31m
LIR - ONT
7/28
Wed
1 stop
Multiple Airlines
11h 21m
ONT - LIR
8/5
Thu
1 stop
Multiple Airlines
8h 45m
LIR - ONT
7/10
Sat
1 stop
Avianca
7h 15m
ONT - SJO
7/15
Thu
1 stop
Avianca
18h 50m
SJO - ONT
6/17
Thu
3 stops
Multiple Airlines
23h 18m
ONT - SJO
6/27
Sun
2 stops
Multiple Airlines
32h 28m
SJO - ONT
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Recent one-way flight deals

4/1
Thu
3 stops
Multiple Airlines
27h 22m
ONT - SJO
3/27
Sat
2 stops
Delta
15h 26m
ONT - LIR
3/31
Wed
2 stops
Multiple Airlines
32h 44m
ONT - SJO
3/31
Wed
1 stop
American Airlines
10h 42m
ONT - SJO
3/31
Wed
3 stops
Multiple Airlines
32h 44m
ONT - SJO
3/30
Tue
3 stops
Multiple Airlines
22h 00m
ONT - SJO
4/1
Thu
1 stop
American Airlines
20h 18m
ONT - SJO
3/19
Fri
1 stop
United Airlines
8h 06m
ONT - LIR
3/18
Thu
1 stop
United Airlines
22h 00m
ONT - LIR
3/3
Wed
1 stop
American Airlines
11h 55m
ONT - SJO
4/1
Thu
2 stops
United Airlines
19h 31m
ONT - SJO
3/26
Fri
3 stops
Multiple Airlines
19h 07m
ONT - LIR
7/2
Fri
1 stop
United Airlines
13h 00m
ONT - LIR
3/25
Thu
2 stops
Multiple Airlines
35h 21m
ONT - LIR
3/30
Tue
2 stops
Multiple Airlines
22h 00m
ONT - SJO
7/2
Fri
2 stops
United Airlines
18h 45m
ONT - LIR
3/26
Fri
2 stops
Multiple Airlines
35h 21m
ONT - LIR
3/25
Thu
3 stops
Multiple Airlines
35h 21m
ONT - LIR
3/3
Wed
3 stops
American Airlines
15h 30m
ONT - SJO
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