$144 Find Cheap Flights from Costa Rica to Newark Liberty Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Newark departing on 3/7. 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

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These are the airlines KAYAK users have selected most often from within our search results for flights to Newark
These are the airlines KAYAK users have selected most often from within our search results for flights to Newark
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Cheap Flights from Costa Rica to Newark

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Costa Rica to Newark 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 Costa Rica to Newark

Fri, Mar 6 - Tue, Mar 10
Multiple Airlines Logo
7:22 am - 11:29 pm
SJO
-
EWR
15h 07m
2 stops
Multiple Airlines Logo
5:00 am - 3:06 pm
EWR
-
SJO
12h 06m
1 stop
$238Multiple Airlines
Fri, Mar 6 - Tue, Mar 10
Spirit Airlines Logo
12:35 pm - 11:19 pm
SJO
-
EWR
9h 44m
1 stop
Spirit Airlines Logo
5:00 am - 10:40 am
EWR
-
SJO
7h 40m
1 stop
$240Spirit Airlines
Thu, Mar 5 - Tue, Mar 10
Spirit Airlines Logo
1:31 pm - 11:58 pm
SJO
-
EWR
9h 27m
1 stop
Spirit Airlines Logo
5:45 am - 11:22 am
EWR
-
SJO
7h 37m
1 stop
$243Spirit Airlines
Wed, Mar 11 - Tue, Mar 17
Arajet Logo
11:23 am - 11:30 pm
SJO
-
EWR
10h 07m
1 stop
Arajet Logo
1:05 am - 10:38 am
EWR
-
SJO
11h 33m
1 stop
$246Arajet
Sat, Mar 7 - Tue, Mar 10
Multiple Airlines Logo
1:31 pm - 11:58 pm
SJO
-
EWR
9h 27m
1 stop
Multiple Airlines Logo
1:05 am - 10:38 am
EWR
-
SJO
11h 33m
1 stop
$251Multiple Airlines
Wed, Mar 11 - Mon, Mar 16
United Airlines Logo
4:15 pm - 11:17 pm
LIR
-
EWR
5h 02mnonstop
United Airlines Logo
9:25 pm - 11:55 am
EWR
-
LIR
16h 30m
1 stop
$285United Airlines
Wed, Mar 11 - Tue, Mar 17
United Airlines Logo
1:01 pm - 9:07 am
LIR
-
EWR
18h 06m
1 stop
United Airlines Logo
7:18 am - 10:44 am
EWR
-
LIR
5h 26mnonstop
$291United Airlines
Wed, Mar 11 - Wed, Mar 18
Avianca Logo
4:15 pm - 11:17 pm
LIR
-
EWR
5h 02mnonstop
Avianca Logo
8:29 pm - 12:10 pm
EWR
-
LIR
17h 41m
1 stop
$300Avianca
Mon, May 4 - Mon, May 11
American Airlines Logo
2:40 pm - 10:53 pm
LIR
-
EWR
30h 13m
1 stop
American Airlines Logo
8:00 am - 1:10 pm
EWR
-
LIR
7h 10m
1 stop
$304American Airlines
Mon, May 4 - Mon, May 11
American Airlines Logo
2:40 pm - 10:53 pm
LIR
-
EWR
30h 13m
1 stop
American Airlines Logo
7:26 pm - 11:24 am
EWR
-
LIR
17h 58m
2 stops
$309American Airlines
Booking Insights

KAYAK's insights & trends for flights to Newark

Get data-powered insights and trends for flights to Newark to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Newark Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Newark 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 to Newark Airport is October, where tickets cost $321 on average for one-way flights. On the other hand, the most expensive months are July and April, where the average cost of tickets from Costa Rica is $493 and $477 respectively. For return trips, the best month to travel is October with an average price of $321.

What is a good deal for flights to Newark Airport?

If you’re looking for cheap airfare to Newark Airport, 25% of our users found tickets to Newark Airport for the following prices or less: From San José $174 one-way - $351 round-trip, from Liberia $229 one-way - $274 round-trip.

How far in advance should I book a flight to Newark Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Newark 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, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Good to know

Low seasonFebruary
Cheapest flight$144
Best time to beat the crowds but there is an average 3% increase in price.
Flight from San José to Newark Liberty Airport

FAQs - booking Newark Liberty Airport flights

  • How far is Newark Airport from central Newark?

    You’ll need to travel 3 miles to reach the Newark city center from Newark Airport.

  • How much is a flight to Newark?

    On average, a flight to Newark costs $359. The cheapest price found on KAYAK in the last 2 weeks cost $137 and departed from San José Juan Santamaria Intl Airport.

  • What is the cheapest day to fly to Newark?

    Based on KAYAK data, the cheapest day to fly to Newark is Wednesday where tickets can be as cheap as $404. On the other hand, the most expensive day to fly is Sunday, where prices are $554 on average.

  • How does KAYAK find such low prices on flights to Newark Liberty 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 to Newark Liberty Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Newark Liberty Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Newark Liberty 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 to Newark Liberty 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 Newark Liberty Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Newark Liberty 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 Newark Liberty Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Newark Airport?

    The cheapest time of day to fly to Newark Airport is generally at night, when flights cost $391 on average. The most expensive time of day to fly to Newark Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is $505.

Top tips for finding cheap flights to Newark Liberty Airport

  • Looking for cheap airfare to Newark Liberty Airport? 25% of our users found round-trip tickets to Newark Liberty Airport for the following prices or less: From Liberia $252, from San José $340
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Newark Liberty Airport flight deals.

Reviews of the top 5 airlines serving from Costa Rica to Newark

 
See real verified KAYAK customer reviews for airlines flying to Newark. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Costa Rica to Newark. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Newark? 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 9322 reviews
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

Nothing also dont give to people that disgusting blanket and pilow.

2.0 MediocreAnonymous, Feb 2026
MUC - EWR
Read more United Airlines reviews

Nothing also dont give to people that disgusting blanket and pilow.

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Airport experience at Newark was not great. Only one gate open at immigration for US passports when multiple international flights arriving at the same time. Then having to take a train and a bus to different terminal only to have to clear security again, after I had already gone through at my initial departure location. Older plane, no entertainment screens available, and for economy plus, seat was very uncomfortable. Crew was friendly and this leg of my flight was on-time, even though I arrived later than initially scheduled due to 1st flight being over 2 hours delayed and missing my original connection.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

The boarding was cumbersome. The staff was not aligned. They called group 1 but then the agent said no. Then they called group 1 again but still would not board us. Then they called group 2 and they all came up and still hadn’t started boarding. Then someone came from the plane and said why is no one coming? And the agent said bc i thought not yet and she said I said over the walkie talkie to send the passengers down? What was not clear about that? Also, onboard, the crew gave announcements very ironic/authoritative, and in first class they gave us a cheesebox. My expectations based on competition airlines, is a warm meal. A little underwhelming.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

It was good, although we could not get our preferred seats, we did enjoy the whole experience from Costa Rica. I still don't understand why our luggage is not the first to come out at the band.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

The smell from the bathroom kept wafting through the cabin. It made people sick.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

Delayed, no updates, had a rewards number but was not working

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Overall, an average flight; food options were not the best, and there were bugs on the plane.

There was no TV's on the plane? I tried to activated the WiFi multiple times before the plane took off but it wasn't work well.

Very smooth flight, good legroom with the "even more room" seats. Entertainment choice was excellent, wifi on board, plane was modern. Pilot got a round of applause for a smooth landing in very blustery conditions. Love flying with them. Check in was OK too. We were too early so we had to wait until groundstaff showed up 3hrs before the flight.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

They initially informed us that the flight was delayed, but only after waiting an hour for updates. In any event, the flight was canceled, but the way it was handled was really poor and egregious. I feel they handled the situation of informing travelers very irresponsibly. I sat in a wheelchair at the airport for over four hours before finally being told that the flight was canceled.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

Horrible experience!! In the meantime we were in Philadelphia they didn’t give us some water and the information about the fly on the plane was without empathy!!! Plus the fly started with delay!! So very unhappy moment!!!

Forgot my anxiety pills, crew didn’t knew what to do then few minutes after they gave me a bottle of water and told me to walk thru the hall. They should be trained for this kinds of situations cause it really would help someone. Tips: bottle of water (airports should allow passengers at least having them thru) for this kinds of situations. Alcohol wipes just in case they don’t have. Tap water on skin (preferably little cold or a normal temperature) this will help.

All of our flights were canceled, though every other airline was flying out and in

didn't order food on board. there's no way to hold a water botton on the way. otherwise it was a pleasant flight, thanks to the crew.

Even though there was a delay the crew was exceptional.

The flight was on time, the crew is friendly, and the seat was nice and wide compared to some other airlines. (the KAYAK survey should allow for the response, not applicable, because I did not have any food or take advantage of the entertainment)

A Spirit agent caused me to miss my flight. The company has not responded for request of refund. Stay away from Spirit.

It was good. It will be nice one check Baggage cost and picking seats were free.

Sprit being a value airlines providing flights for less prices, does its basic job. Flight was on time and ride was comfortable. Its did take off and landed on time. Luggage took sometime to arrive at carousal but that could be Newark airport issue.

Worst every experience travelling with Family. So much delayed while going and returning both. All airlines were time except this. not sure Spirit operational issues. No recommend Spirit. It may spoil your entire trip. Rather spent extra $ and book better airlines.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

Frontier line changes my flight schedule with out my authorization. They never ask me and with out my concern they cut off 4 hours of my vacation they force my to leave 4 hours early from Puerto Rico.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

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.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

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.

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Everything you need to know for your flight to Newark

Information on the airport you'll fly into in Newark