The cheapest times to fly from ACK to SJC are

  • January 1st to March 25th
  • June 25th to August 5th
  • October 29th to November 18th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ACK to SJC is late February and early March. Prices can be as high as $1358 for Sunday flights during late May, or as low as $499 for Tuesday flights around late February and early March.


When to Fly to San Jose

Flying from Nantucket, MA (ACK) to San Jose, CA (SJC) will usually cost between $575 to $1180 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late February and early March with an average ticket price of $588. Due to high demand the most expensive time to fly is late May, with an average price of $1162. Planning your trip to low-cost times can easily save you $574 on economy flights and even more on first-class flights. Generally, any price below $788 can be considered a good price for a round-trip ACK to SJC flight.

See below for a graph of average weekly prices for the ACK to SJC route. All prices are for round-trip tickets in USD.

ACK to SJC Flight Prices

Compared to other flights, the ACK to SJC flight is cheaper than the average and costs less than the average flight leaving from Nantucket. The average price per mile (for a direct flight) is $0.18, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to SJC, and Wednesday the cheapest day to fly back into ACK. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $158 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $759. Return trip prices are from the SJC to ACK flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ACK to SJC can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 55 minutes may not be realistic.


Flight Hacking ACK to SJC

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ACK to SJC — but Champion Traveler does!

Hack #1: Boston, MA (ACK > BOS > SJC)

  • Price for both tickets: $743
  • Average savings: $45 (5.71%)

See ACK to BOS flights


Flight Questions Answered

Still have questions about flying from ACK to SJC? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Cape Air, Delta, Hawaiian, JetBlue, United, and potentially more during busy seasons.

How far away is it from Norman Y. Mineta San Jose International Airport to Nantucket Memorial Airport?

The distance between the two airports is roughly 2744 miles or 4416 kilometers.

How long does it take to fly from ACK to SJC?

The real-world flight time for a nonstop ACK to SJC flight is about 5 hour 55 minutes.

How many flights go between Nantucket, MA and San Jose, CA?

It depends on the day of the week and the date, but a typical day might have around 14 available flights from ACK to SJC.


Airport Location Info


Departing Airport

Origination code ACK
Origination airport name Nantucket Memorial Airport
City Nantucket, MA
Country the United States
Latitude 41.3
Longitude -70.1

Return Airport

Destination code SJC
Destination airport name Norman Y. Mineta San Jose International Airport
City San Jose, CA
Country the United States
Latitude 37.4
Longitude -121.9


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.