$112 Find Cheap Flights from Costa Rica to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 11/12. 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 Boston
These are the airlines KAYAK users have selected most often from within our search results for flights to Boston
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Cheap Flights from Costa Rica to Boston

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

Wed, Feb 4 - Tue, Feb 10
United Airlines Logo
8:45 am - 9:52 pmSJO-BOS
12h 07m2 stops
United Airlines Logo
3:25 pm - 6:16 pmBOS-SJO
27h 51m1 stop
$234United Airlines
Find Deal
Mon, Nov 24 - Sun, Dec 7
JetBlue Logo
11:01 am - 11:57 pmSJO-BOS
11h 56m1 stop
JetBlue Logo
8:30 pm - 8:52 amBOS-SJO
13h 22m1 stop
$240JetBlue
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
3:11 pm - 12:51 amSJO-BOS
8h 40m1 stop
American Airlines Logo
5:30 am - 2:10 pmBOS-SJO
9h 40m1 stop
$243American Airlines
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Thu, Nov 13 - Wed, Nov 19
Spirit Airlines Logo
1:30 pm - 11:59 pmSJO-BOS
9h 29m1 stop
Spirit Airlines Logo
6:16 am - 10:19 amBOS-SJO
29h 03m2 stops
$245Spirit Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 27
American Airlines Logo
6:00 am - 8:11 pmSJO-BOS
13h 11m2 stops
American Airlines Logo
6:00 am - 3:01 pmBOS-SJO
10h 01m1 stop
$247American Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 27
Spirit Airlines Logo
1:19 pm - 12:40 amSJO-BOS
10h 21m1 stop
Spirit Airlines Logo
5:45 am - 12:14 pmBOS-SJO
7h 29m1 stop
$258Spirit Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
Copa Airlines Logo
4:08 am - 10:03 pmSJO-BOS
16h 55m1 stop
Copa Airlines Logo
2:44 pm - 8:19 amBOS-SJO
18h 35m1 stop
$275Copa Airlines
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Wed, Nov 12 - Sun, Nov 16
Copa Airlines Logo
4:08 am - 10:03 pmSJO-BOS
16h 55m1 stop
Copa Airlines Logo
2:44 pm - 4:50 pmBOS-SJO
27h 06m3 stops
$280Copa Airlines
Find Deal
Thu, Dec 25 - Fri, Jan 2
Delta Logo
2:05 pm - 11:54 pmLIR-BOS
8h 49m1 stop
Delta Logo
5:40 am - 12:50 pmBOS-LIR
8h 10m1 stop
$332Delta
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Sat, Feb 28 - Sat, Mar 7
Delta Logo
3:55 pm - 12:59 amLIR-BOS
8h 04m1 stop
Delta Logo
7:25 am - 12:30 pmBOS-LIR
6h 05mnonstop
$726Delta
Find Deal

Everything you should know

Top routes
SJO-BOS
Cheapest
LIR-BOS
Most popular
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 14% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$234
Overall average: $416
United Airlines
Wed 2/4Tue 2/10
SJO - BOS • 2 stops
Cheapest non-stop
$326
JetBlue
Thu 12/25Fri 1/2
LIR - BOS • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Booking Insights

KAYAK's insights & trends for flights to Boston

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

What is the cheapest flight to Boston?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the lowest price for a flight to Boston was $112 for a one-way ticket from San José and $234 for a round-trip. The most popular route searched for by our users was for flights from Liberia to Boston and the best round-trip deal found in the last 3 days was $304.

What is the cheapest month to fly to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Boston, 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 Boston is December, where tickets cost $387 on average for one-way flights. On the other hand, the most expensive months are March and September, where the average cost of tickets from Costa Rica is $640 and $603 respectively. For return trips, the best month to travel is November with an average price of $355.

What is a good deal for flights to Boston?

If you’re looking for cheap airfare to Boston, 25% of our users found tickets to Boston for the following prices or less: From Liberia $220 one-way - $249 round-trip.

How far in advance should I book a flight to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Boston, 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 41 days before departure.

Good to know

Low seasonMarch
Cheapest flight$112
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San José to Boston

FAQs - booking Boston flights

  • What is the cheapest flight to Boston?

    In the last 3 days, the lowest price for a flight to Boston was $112 for a one-way ticket from San José and $234 for a round-trip. The most popular route searched for by our users was for flights from Liberia to Boston and the best round-trip deal found in the last 3 days was $304.

  • How far is Boston Logan Intl Airport from central Boston?

    There are 3 miles between Boston city center and Boston Logan Intl Airport.

  • What is the name of Boston’s airport?

    All flights to Boston land at Boston Logan Intl Airport. The airport code is BOS,and it can also be referred to as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl.

  • How much is a flight to Boston?

    On average, a flight to Boston costs $304. The cheapest price found on KAYAK in the last 2 weeks cost $163 and departed from Liberia Airport.

  • What is the cheapest day to fly to Boston?

    Based on KAYAK data, the cheapest day to fly to Boston is Tuesday where tickets can be as cheap as $393. On the other hand, the most expensive day to fly is Sunday, where prices are $509 on average.

  • How does KAYAK find such low prices on flights to Boston?

    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 Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston 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 Boston?

    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 Boston 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 Boston?

    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 Boston 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 Boston?

    The cheapest time of day to fly to Boston is generally in the evening, when flights cost $356 on average. The most expensive time of day to fly to Boston is generally in the morning, which is peak travel time and where the average cost of a ticket is $474.

Top tips for finding cheap flights to Boston

  • Looking for cheap airfare to Boston? 25% of our users found round-trip tickets to Boston for the following prices or less: From Liberia $234
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

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

 
See real verified KAYAK customer reviews for airlines flying to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Costa Rica to Boston. 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 Boston? 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.
7.6
Copa AirlinesOverall score based on 1561 reviews
7.4Comfort
7.8Boarding
6.9Food
6.8Entertainment
8.1Crew
Airline reviews

Some of the Air hostesses are not that friendly. Need improvement

8.0 ExcellentAnonymous, Oct 2025PTY - IAD
Read more Copa Airlines reviews

Some of the Air hostesses are not that friendly. Need improvement

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Great experience with a crew always thinking in the passenger

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Excellent all round, first time flying United. App is very helpful.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

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.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

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

very difficult boarding process - aggressive passengers not the friendliest crew

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

the plane was not full so the flight attendant had me move to an empty row which made for a good flight. The software for logging on and booking and confirming the flight is much too cumbersome.

Always comes in handy when I want a quick weekend getaway.

For the price I could have taken a “name brand” airline. No drink no snack and constant emails trying to get addition money for EVERYTHING other airlines include in the price. It looks cheaper but it’s Judy bait and switch and emails non stop!

The gate agents for spirit at EWR wouldn’t give me my ticket to board when I arrived 50 min from the flight, saying that I wouldn’t make my flight. They tried to reschedule me to arrive at my destination 14 hours after the original flight, which included a 10 hr layover in another city. I rebooked with another airline and it took me a total of 5 min to go through security. Then I see a charge on my card for a $100 change fee that I did not approve. Beware of this horrible place and these horrible people

Excessive fees for flight delays. What a Scam. I was not able to attend the wedding I needed to go.

Waited at the airport for over 4 hours to board this flight. Terrible airline

Was supposed to take off 8:00 last night. Got delayed till 8:00 this morning

It was terrible, we had to board and unboard the flight with a hour delay that caused me to miss an appointment and a surprise for my wife

When the flight ticket is expensive and you have to purchase check in luggage and there is no snacks, no entertainment, tight seats stuffed in the back of the plane not such good experience. I would like some to reach out to me . I paid for check luggage when I bought the ticket they made me pay again on the return flight extra $70. Very frustrating.

Excellent experience when I am looking for a budget airline where the main expectation is getting me from point A to point B with no frills.

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