SJO - BOS

$144 Find Cheap Flights from San José 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 from San José to Boston departing on 6/4. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from San José to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San José to Boston.
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Cheap Flight Deals from San José to Boston (SJO-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San José 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.

Recent round-trip flight deals from San José to Boston

KAYAK's recommended round-trip deals from the most popular airlines that fly from San José to Boston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Spirit Airlines Logo
11:32 am - 11:47 pmSJO-BOS
10h 15m1 stop
Spirit Airlines Logo
5:42 pm - 10:27 amBOS-SJO
18h 45m1 stop
$245Spirit Airlines
Find Deal
Thu, May 8 - Mon, May 12
Spirit Airlines Logo
11:32 am - 9:50 pmSJO-BOS
8h 18m1 stop
Spirit Airlines Logo
5:42 pm - 10:27 amBOS-SJO
18h 45m1 stop
$246Spirit Airlines
Find Deal
Wed, May 14 - Mon, May 19
Spirit Airlines Logo
12:28 pm - 11:29 pmSJO-BOS
9h 01m1 stop
Spirit Airlines Logo
6:10 am - 11:33 amBOS-SJO
7h 23m1 stop
$254Spirit Airlines
Find Deal
Thu, May 8 - Thu, May 15
American Airlines Logo
12:50 pm - 3:19 pmSJO-BOS
24h 29m1 stop
American Airlines Logo
7:25 pm - 9:25 amBOS-SJO
16h 00m2 stops
$329American Airlines
Find Deal
Tue, Sep 16 - Mon, Sep 22
Copa Airlines Logo
4:10 am - 2:14 pmSJO-BOS
8h 04m1 stop
Copa Airlines Logo
8:47 am - 6:59 pmBOS-SJO
12h 12m1 stop
$332Copa Airlines
Find Deal
Tue, May 13 - Wed, May 28
American Airlines Logo
2:10 pm - 9:28 amSJO-BOS
17h 18m1 stop
American Airlines Logo
5:10 am - 6:35 pmBOS-SJO
15h 25m1 stop
$344American Airlines
Find Deal
Fri, May 9 - Fri, May 30
United Airlines Logo
7:55 am - 11:44 pmSJO-BOS
13h 49m1 stop
United Airlines Logo
12:29 pm - 10:11 amBOS-SJO
23h 42m2 stops
$354United Airlines
Find Deal
Tue, Jun 3 - Tue, Jun 10
Copa Airlines Logo
4:10 am - 2:06 pmSJO-BOS
7h 56m1 stop
Copa Airlines Logo
3:55 pm - 7:35 amBOS-SJO
17h 40m1 stop
$355Copa Airlines
Find Deal
Tue, Apr 29 - Tue, May 13
United Airlines Logo
7:55 am - 10:39 amSJO-BOS
24h 44m2 stops
United Airlines Logo
6:00 am - 10:11 amBOS-SJO
30h 11m2 stops
$359United Airlines
Find Deal
Tue, May 20 - Thu, May 29
JetBlue Logo
2:05 pm - 12:27 amSJO-BOS
8h 22m1 stop
JetBlue Logo
6:25 am - 11:55 amBOS-SJO
7h 30m1 stop
$437JetBlue
Find Deal
Tue, Jun 17 - Mon, Jul 21

KAYAK's insights & trends for San José to Boston flights

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

What’s the cheapest day of the week to fly from San José to Boston?

The average price of all round-trip flights from San José to Boston clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Boston on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from San José to Boston. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from San José to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San José 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 from San José to Boston is May, where tickets cost $353 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $511 and $498 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San José 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 on the flight from San José to Boston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

February

High season

December

Cheapest flight

$144
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from San José to Boston

When to book flights from San José to Boston

Are your dates flexible? Find out the best times to travel from San José to Boston 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 flights from San José to Boston

  • What is the cheapest flight from San José to Boston?

    In the last 3 days, the lowest price for a flight from San José to Boston was $144 for a one-way ticket and $245 for a round-trip.

  • Do I need a passport to fly between San José and Boston?

    A passport is required to fly from San José to Boston.

  • Which aircraft models fly most regularly from San José to Boston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San José to Boston?

    oneworld, and Star Alliance are the airline alliances operating flights between San José and Boston, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Boston from San José?

    Fort Lauderdale is the most popular layover city among KAYAK users traveling from San José to Boston.

  • Which is the best airline for flights from San José to Boston, Copa Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from San José to Boston are Copa Airlines and United Airlines. With an average price for the route of $454 and an overall rating of 7.6, Copa Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $475 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San José 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 from San José to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from San José 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 José 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 to San José with another airline. Booking your flights between San José and BOS 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 José 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 from San José up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from San José to Boston

 
See real verified KAYAK customer reviews for airlines flying from San José to Boston. 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 San José 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 1400 reviews
6.8Entertainment
8.1Crew
7.4Comfort
7.8Boarding
6.8Food
Airline reviews

I upgraded myself to Business Class at the last minute so I had a DREAMS window seat. Seeing as I've never flown Business before everything was novel and fun for me and it made the 7 hour flight much more enjoyable for sure.

10.0 ExcellentLisa, Mar 2025PTY - LAX
Read more Copa Airlines reviews

I upgraded myself to Business Class at the last minute so I had a DREAMS window seat. Seeing as I've never flown Business before everything was novel and fun for me and it made the 7 hour flight much more enjoyable for sure.

It was good, plane is a bit older so seats are somewhat flat

Great from check in all the way to the end. Very happy with Copa

Copa stranded us ans then tried to charge us thousands to leave Panama.

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

Friendly flight team and seamless travel from one stop to next.

I loved my experience. Very safe, Very informative and very friendly.

At JFK the Security line was extremely long and few checkpoints open.

Flight attendant -José? - was over the top friendly and professional. Beautiful new plane with lie flat seats in Business (worth it!)

Horrible food. No wine or any other alcohol is served on the flight. Water is not served often and they refused when I asked for water in two cups. On the other hand, both going and coming back flights were on time.

The gate was too far away for the connecting flight

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

We were Polaris passengers and found the service poor. The food was ok but the flight attendants were not attentive and rushed the service.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Love the mosaic program, being able to move to an extra space seat for free is awesome

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

The flight was late and we missed this connecting flight. American Airlines refused to put us anywhere for the night for their snafu. We had to find our own accommodations in Miami, and it was expensive for a crappy hotel.

The trip was very smooth and they provided great customer service

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Free wifi was available, but only some time, being at least 30 minutes into the flight. it would have been better that an announcement had been made about the delay.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

I book a filght for me and my daughter from Miami home to Las Vegas and getting her checked in was awful the lady at the baggage check in was horrible!!! She was the rudest person I have ever encountered in my entire life!!!! My daughter dose not speak Spanish and so I was trying to translate for her but the woman would not let me so my daughter was 100 💯 confused because she could not understand what was going on or being said at all horrible absolutely horrible and rude extremely stressful worst experience ever!!!!!!! And then we were actually told by other air port staff not to complain because if we did sprint would make sure we miss our flight ✈️ that they do it all the time 😧

Terrible! They kept postponing and finally canceled our flight. They canceled so late. We had no other options but to drive to a different city and try to find a new flight to get onto our cruise. We still aren’t there yet and might not make it.

The flight was on time. The seats are very narrow.

My only complaint is that the standing recline. I wasn’t aware of that when I booked the ticket.

Unclear pricing; ended up being charged an extra $52 just to get onboard

Spirit is awful. Too expensive for what you get. Stop nickel and diming.

No leg room AT all extremely uncomfortable flight water even cost 5 dollars

Seats are poor. They do not lean back. They do not even have pockets on the back, making it impossible to store a phone or a coke bottle. If you opt for basic economy cheap seats, they stick you always in the middle or window seat, even though there are unoccupied seats on the aisle. And then there is the nickel and diming. No carry-ons. And checking your carry-on is $70. At the end there is no price advantage but there is plenty of aggravation.

Not good. No updates regarding the flight status until after the fact on the delays and then a cancellation.

Flight crew was great. Spirit leaves a lot to be desired in terms of comfort.

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