SJO - BOS

$142 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 5/15. 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 - 9:50 pmSJO-BOS
8h 18m1 stop
Spirit Airlines Logo
6:10 am - 11:33 amBOS-SJO
7h 23m1 stop
$230Spirit Airlines
Find Deal
Tue, May 20 - Tue, May 27
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
$231Spirit Airlines
Find Deal
Wed, May 21 - Wed, May 28
 Logo
11:32 am - 8:40 amSJO-BOS
19h 08m1 stop
 Logo
6:10 am - 11:33 amBOS-SJO
7h 23m1 stop
Thu, May 22 - Thu, May 29
 Logo
11:32 am - 12:44 amSJO-BOS
11h 12m1 stop
 Logo
5:42 pm - 10:27 amBOS-SJO
18h 45m1 stop
Sat, May 17 - Tue, May 20
American Airlines Logo
12:50 pm - 12:27 amSJO-BOS
9h 37m1 stop
American Airlines Logo
7:25 pm - 9:25 amBOS-SJO
16h 00m2 stops
$328American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 15
American Airlines Logo
7:35 am - 11:33 pmSJO-BOS
13h 58m2 stops
American Airlines Logo
5:29 am - 12:55 pmBOS-SJO
9h 26m1 stop
$329American Airlines
Find Deal
Sat, Sep 6 - Fri, Sep 12
United Airlines Logo
1:30 pm - 5:01 pmSJO-BOS
25h 31m1 stop
United Airlines Logo
11:02 am - 10:11 amBOS-SJO
25h 09m2 stops
$335United Airlines
Find Deal
Sat, May 24 - Wed, May 28
United Airlines Logo
7:55 am - 11:59 pmSJO-BOS
14h 04m2 stops
United Airlines Logo
6:00 am - 10:39 pmBOS-SJO
18h 39m2 stops
$349United Airlines
Find Deal
Tue, May 13 - Wed, May 28
Copa Airlines Logo
10:57 am - 10:27 pmSJO-BOS
9h 30m1 stop
Copa Airlines Logo
4:05 pm - 7:35 amBOS-SJO
17h 30m1 stop
$351Copa Airlines
Find Deal
Thu, Jul 24 - Mon, Jul 28
Copa Airlines Logo
6:07 pm - 2:14 pmSJO-BOS
18h 07m1 stop
Copa Airlines Logo
3:55 pm - 8:20 amBOS-SJO
18h 25m1 stop
$355Copa Airlines
Find Deal
Mon, May 19 - Thu, May 22

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 October, where tickets cost $352 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $513 and $499 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. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

March

High season

December

Cheapest flight

$142
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 4% 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 $142 for a one-way ticket and $230 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?

    Star Alliance, oneworld, and SkyTeam 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, 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 $471 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $457 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.

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 1410 reviews
7.4Comfort
6.8Entertainment
7.8Boarding
8.1Crew
6.8Food
Airline reviews

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

4.0 OkayAnonymous, Apr 2025LAX - PTY
Read more Copa Airlines reviews

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

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!)

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

My suitcase was destroyed. The top part where the handle is is completed broken. And unusable now.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Great flight. Departed early, arrived early. However they were out of meals for sale. Also, we arrived early and the gate was not available so we sat on the taxiway for quite a while (not JetBlue’s fault).

The gate and ground staff were excellent, friendly, went out of their way to acknowledge my Mosaic status. The plane was an older Airbus, so the seats were a little worn. The in flight attendant was not very nice, and seemed to be annoyed to be at work or be on this flight. Flight was fast and we landed early and pilots kept us informed.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

The inflight system with their wifi is a hot mess and doesn't work. Separately they do, but when you try to do theoretically simple things like pair a device for control it all falls apart

It was too hot in the cabin. The AC did not help.

The regular feedback of any changes to our flights. The Jetblue staff were very helpful. Our flights were great. Lots of leg room!

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

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

They lost my luggage and it didn’t get delivered until the next day.

Would have thought that they would gas up plane before everyone got on board

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

Very efficient process and boarding, seats felt standard. Flight conditions from take off to landing had been very smooth. Alcohol on the menu however was not available… Will fly Spirit in the future for the price, you can’t really complain if you fly light.

It’s what we expected from Spirit..reasonable cost, good for a 2-3 hour flight. Disappointed that we had a 2 hour delay in departure from DFW for a maintenance issue, but the pilot handled it well once we were outbound on a different Airbus.

Worst airline ever! The guy weighing my bag had his foot on the metal plate and when I called him out on it, I got this stupid little smirk. La is a scam and so is Spirit Airlines. All the flight attendants looked like they hated our flight just as much as we did.

My experience with Spirit went pretty much as expected. It's a no frills airline, and you get what you pay for. I don't require much, so I was grateful to have an inexpensive way to travel. It is sad to me that the gate agents and flight crew don't smile much or seem very friendly or helpful. They are competent and efficient, and that's really all I need.

My experience was okay. The flight did not offer even water without a fee. Also had to pay extra for my carry on, as I was told I had to check my bag, even though it said I had the option to carry on a bag when booking. This costed me an extra $100. Would likely not fly with Spirit again.

The flight was rescheduled several times without a reason for the schedule changes. I had to be in New Orleans at a certain time and it was just easier to drive at a certain point. I don’t know if the flight ever left. This is my first experience with Spirit Airlines and is also the last.

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

As my first time on Spirit, I thought that it was good.

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