SJO - BOS

$106 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 11/18. 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.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$230
Overall average: $421
JetBlue
Thu 12/25Fri 1/2
SJO - BOS • 1 stop
Cheapest one-way
$106
Typical prices: $212-$347
Spirit Airlines
Tue 11/18
SJO - BOS • 1 stop
Top airlines
JetBlue
Cheapest • from $230 (round-trip)
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 15% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Thu, Dec 25 - Fri, Jan 2
JetBlue Logo
10:00 am - 8:00 pmSJO-BOS
9h 00m1 stop
JetBlue Logo
9:29 pm - 8:53 amBOS-SJO
12h 24m1 stop
$230JetBlue
Find Deal
Thu, Nov 13 - Sun, Nov 16
Spirit Airlines Logo
1:30 pm - 11:59 pmSJO-BOS
9h 29m1 stop
Spirit Airlines Logo
6:16 am - 12:25 pmBOS-SJO
7h 09m1 stop
$231Spirit Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 18
Multiple Airlines Logo
5:00 am - 1:50 pmSJO-BOS
7h 50m1 stop
Multiple Airlines Logo
6:16 am - 12:25 pmBOS-SJO
7h 09m1 stop
$233Multiple Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11
United Airlines Logo
2:20 pm - 9:30 amSJO-BOS
18h 10m2 stops
United Airlines Logo
7:38 pm - 11:25 amBOS-SJO
16h 47m2 stops
$234United Airlines
Find Deal
Thu, Dec 25 - Thu, Jan 1
United Airlines Logo
6:30 am - 12:45 amSJO-BOS
17h 15m2 stops
United Airlines Logo
6:20 am - 8:39 pmBOS-SJO
15h 19m1 stop
$247United Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 8
American Airlines Logo
1:23 pm - 12:16 amSJO-BOS
9h 53m1 stop
American Airlines Logo
1:45 pm - 10:28 pmBOS-SJO
9h 43m1 stop
$248American Airlines
Find Deal
Thu, Dec 11 - Wed, Apr 8
American Airlines Logo
7:00 am - 10:16 pmSJO-BOS
14h 16m2 stops
American Airlines Logo
5:48 am - 1:10 pmBOS-SJO
9h 22m1 stop
$251American Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 23
Multiple Airlines Logo
5:00 am - 1:50 pmSJO-BOS
7h 50m1 stop
Multiple Airlines Logo
5:45 pm - 10:19 amBOS-SJO
17h 34m1 stop
$264Multiple Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
Copa Airlines Logo
4:08 am - 10:03 pmSJO-BOS
16h 55m1 stop
Copa Airlines Logo
2:44 pm - 9:05 amBOS-SJO
19h 21m1 stop
$275Copa Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Copa Airlines Logo
10:08 am - 10:03 pmSJO-BOS
10h 55m1 stop
Copa Airlines Logo
2:44 pm - 4:50 pmBOS-SJO
27h 06m3 stops
$280Copa Airlines
Find Deal
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 $355 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $485 and $470 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$106
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 1% 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 $106 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?

    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 $438 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 1562 reviews
8.1Crew
6.8Entertainment
7.8Boarding
7.4Comfort
6.9Food
Airline reviews

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

6.0 GoodZach, Oct 2025DEN - PTY
Read more Copa Airlines reviews

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.

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Very disappointed with food service. They ran out of entree selections- so for the last 10 rows only option was lentil stew. Not a fan. Then the morning service (pizza twist) was lukewarm at best- I exited my 12 hour flight having eaten a roll and dessert. They knew it was a full flight.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

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.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

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.

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 Hawaiian lady that boarded me was rude and the one help me a the ticket counter was rude

My experience was terrible. They cancelled my flight twice. They kept delaying it and leading me on, acting like the flight was going to go when it never had a chance. I missed out on valuable family time because of spirit and I won’t be flying with them again.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

The flight was cancelled at the last minute. Will never fly Spirit again. Without a doubt the worst airline around.

My flight was delayed several times and eventually cancelled. Then the re-booked flight for 8pm was delayed multiple times over, and eventually it would have forced me to be at the airport for 9 hours. I accepted a rebook for the following day, fortunately I was able to stay with my friend again in New York, but if I didn’t have him as a resource it would have been much more upsetting.

Horrible, delay after delay due to our plane needing fuel.

Rough landings but comfortable and affordable if you can pack light

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!

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.