SJO - BOS

$141 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 12/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
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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Everything you should know

Cheapest round-trip
$231
Overall average: $407
American Airlines
Fri 2/6Tue 2/10
SJO - BOS • 2 stops
Cheapest one-way
$141
Typical prices: $165-$294
United Airlines
Fri 12/26
SJO - BOS • 1 stop
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 1% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 19% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San José to Boston

Fri, Feb 6 - Tue, Feb 10
American Airlines Logo
8:00 am - 7:02 pm
SJO
-
BOS
10h 02m2 stops
American Airlines Logo
2:43 pm - 10:30 pm
BOS
-
SJO
8h 47m1 stop
$231American Airlines
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
6:30 am - 11:20 pm
SJO
-
BOS
15h 50m1 stop
United Airlines Logo
7:05 am - 8:39 pm
BOS
-
SJO
14h 34m1 stop
$234United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
6:30 am - 9:52 pm
SJO
-
BOS
14h 22m2 stops
United Airlines Logo
4:49 pm - 1:15 pm
BOS
-
SJO
21h 26m2 stops
$239United Airlines
Wed, Jan 28 - Mon, Feb 2
American Airlines Logo
7:09 am - 8:45 pm
SJO
-
BOS
12h 36m1 stop
American Airlines Logo
8:00 am - 9:02 pm
BOS
-
SJO
14h 02m1 stop
$240American Airlines
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
6:30 am - 9:52 pm
SJO
-
BOS
14h 22m2 stops
United Airlines Logo
7:07 pm - 6:16 pm
BOS
-
SJO
24h 09m2 stops
$243United Airlines
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
6:00 am - 12:59 am
SJO
-
BOS
17h 59m1 stop
American Airlines Logo
2:43 pm - 10:30 pm
BOS
-
SJO
8h 47m1 stop
$244American Airlines
Thu, Jan 22 - Thu, Jan 29
American Airlines Logo
7:09 am - 8:45 pm
SJO
-
BOS
12h 36m1 stop
American Airlines Logo
7:00 am - 10:30 pm
BOS
-
SJO
16h 30m1 stop
$245American Airlines
Tue, Jan 27 - Wed, Feb 4
American Airlines Logo
6:00 am - 8:11 pm
SJO
-
BOS
13h 11m2 stops
American Airlines Logo
11:10 am - 10:30 pm
BOS
-
SJO
12h 20m2 stops
$246American Airlines
Sun, Dec 28 - Mon, Jan 5
United Airlines Logo
6:30 am - 11:38 pm
SJO
-
BOS
16h 08m1 stop
United Airlines Logo
7:44 pm - 1:15 pm
BOS
-
SJO
18h 31m2 stops
$247United Airlines
Thu, Jan 29 - Sun, Feb 1
United Airlines Logo
2:05 pm - 12:46 pm
SJO
-
BOS
21h 41m1 stop
United Airlines Logo
7:05 am - 1:15 pm
BOS
-
SJO
31h 10m1 stop
$248United Airlines
Booking Insights

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 November, where tickets cost $331 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $476 and $471 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 3 weeks before departure, which saves you about 1% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$141
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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 $141 for a one-way ticket and $231 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between San José and Boston, with SkyTeam 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, Delta or Copa Airlines?

    The two airlines most popular with KAYAK users for flights from San José to Boston are Delta and Copa Airlines. With an average price for the route of $450 and an overall rating of 7.9, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $436 and an overall rating of 7.6.

  • 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.

Reviews of the 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 1556 reviews
8.1Crew
6.8Entertainment
7.4Comfort
6.8Food
7.8Boarding
Airline reviews

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

8.0 ExcellentAnonymous, Dec 2025
PTY - CUR
Read more Copa Airlines reviews

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

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

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

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

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

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.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

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.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

we were delayed because of some safety check that wasn't done or available

Qatar Airways only had spicy meals on the menu in economy class. You might want to get food in the airport before boarding.

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.

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).

Horrible. Arrived at my gate at 6:37 for a 6:50 flight and was denied by staff to board. Literally watched my flight leave from the window and it didn’t take off until after 7am. Tried to talk to staff and they were rude beyond compare. Will never fly with this airline again.

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

We had to sit and wait for almost an hour after landing and taxiing to the gate. The jet bridge was broken so we just waited and waited and waited and it was inconvenient, hot, and unnecessary.

Flight was in time, very smooth ride and surprisingly lots of legroom in the cabin so I certainly will fly with spirit again

The seats are the most uncomfortable seats I’ve ever sat in. Don’t believe I’ll ever fly spirit again!!

Seats Are hard, Plane was very dirty, used gum stuck on my tray table, wet red liquid under my feet at me seat

Seats are too close. Bags are too expensive. One bag should always be free.

Flight was canceled and instead of rescheduling at the gate we had to go out to the ticket counter. Unruly kids kicking the back of my rows chair with staff to inattentive to say something.

Customer feedback I sent to Spirited today: “I will never fly Spirit Airlines again and will work hard to convince my friends and family to boycott/avoid Spirit Airlines at all costs. I booked three seats for me and my 8 and 10 year old children on NK 1222 from Orlando to Kansas City for 12/7/25 leaving Orlando at 10:37AM. This itinerary was abandoned by Spirit and we were rebooked onto Spirit flight NK 213 leaving at 9:06PM without any notice. Then the nightmare really began. Flight 213 was delayed a total of 12 times, finally leaving at 6:35AM the following day. The gate was changed 5 times and our electronic boarding passes were invalidated at midnight. The worst part was that the 12 separate delays were incremental making it impossible to plan for accommodations for my family. My kids missed a day of school and barely slept under the harsh lights with lots of noise on the filthy airport floor. The customer service agent at Spirit Airlines told us we would be emailed a voucher for a hotel which never happened. I asked about it multiple times and it never arrived in my email inbox. This whole unfortunate situation could’ve been avoided if spirit had taken a realistic approach and delayed the flight from 9 PM until 6 AM from the beginning. My son gleefully deleted the Spirit app from my phone once we landed and we will never fly with Spirit again.”

The experience was really good, the crew members were excellent

Everything you need to know for your flight from San José to Boston

Information on your arrival and departure airports