What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

What is the most punctual flight time for San Diego to Boston flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

Which airline has the best punctuality record on San Diego to Boston flights?

Over the past year, Delta has had the lowest number of delays on this route, with just 12% of flights being delayed.

How often are flights from San Diego to Boston delayed?

About 19% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 174 minutes.

How popular is this San Diego to Boston flight route?

The San Diego to Boston Logan Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from San Diego to Boston?

A quick flight from San Diego to Boston can take about 5h 22m. JetBlue provides one of the quickest options available for as low as C$ 348. San Diego and Boston are separated by a distance of 4154 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Weekly flight availability from San Diego to Boston

The most flights from SAN to BOS are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 mm per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What are the most reliable airlines from San Diego to Boston?

Before booking your flight to Boston from San Diego, check out the most reliable airlines to get you to your destination on time: KLM (100%), Japan Airlines (93%), Aer Lingus( 83%).

Can I find deals for flights from San Diego to Boston that include hotel bookings?

Yes. In addition to deals on San Diego to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Diego to Boston?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Boston.

Can I find deals for business class flights from San Diego to Boston?

Yes. Cheapflights offers flight deals from San Diego to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 166+ Cheap Flights from San Diego to Boston

Cheap flight deals from San Diego to Boston

Enter your travel dates to find the best prices.

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Best

Direct

Last-minute

One-way

Cheapest flights from San Diego to Boston
Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Wed 2/1210:35 a.m. -

1 stop10h 42m

Sun 6/126:50 a.m. -

Nonstop6h 34m

Deal found 2/11C$ 248

Thu 24/1211:44 a.m. -

Nonstop5h 32m

Tue 12/12:46 p.m. -

1 stop8h 34m

Deal found 3/11C$ 249

Fri 4/1210:35 a.m. -

1 stop10h 42m

Mon 7/124:05 p.m. -

Nonstop6h 28m

Deal found 4/11C$ 250

Wed 23/128:35 p.m. -

Nonstop5h 29m

Mon 11/12:46 p.m. -

1 stop8h 34m

Deal found 3/11C$ 253

Tue 17/1111:25 a.m. -

Nonstop5h 25m

Sat 21/1110:20 p.m. -

1 stop13h 45m

Deal found 31/10C$ 256

Wed 16/1210:34 a.m. -

1 stop10h 43m

Tue 19/14:35 p.m. -

Nonstop6h 38m

Deal found 4/11C$ 262

Fri 4/1210:13 p.m. -

Nonstop5h 26m

Tue 8/125:10 p.m. -

Nonstop6h 33m

Deal found 3/11C$ 276

Mon 16/118:26 p.m. -

Nonstop5h 34m

Tue 17/111:00 p.m. -

1 stop10h 22m

Deal found 1/11C$ 282

Tue 17/112:07 p.m. -

Nonstop5h 52m

Wed 18/117:00 a.m. -

Nonstop6h 31m

Deal found 31/10C$ 289

Mon 16/119:40 p.m. -

1 stop10h 01m

Thu 19/111:24 p.m. -

1 stop9h 20m

Deal found 2/11C$ 296

Find flight deals from San Diego to Boston

Round-trip from	C$ 248
One-way from	C$ 166
Popular in	December
Cheapest in	January
Average price	C$ 529

JetBlue
2/12-6/12
1 total stop
17h 16m total
San Diego to Boston

Search Deals

Delta
24/11-31/12
Nonstop
5h 23m total
San Diego to Boston

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Tue 22/12

7:10 p.m.-5:54 a.m.

1 stop7h 44m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 180

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sat 23/1

7:41 p.m.-10:38 a.m.

2 stops11h 57m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 187

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Mon 9/11

8:30 p.m.-8:20 a.m.

2 stops8h 50m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 229

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Fri 12/3

10:20 p.m.-6:45 a.m.

Nonstop5h 25m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 236

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sun 17/1

6:50 a.m.-6:38 p.m.

1 stop8h 48m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 249

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Wed 3/3

12:05 p.m.-11:45 p.m.

2 stops8h 40m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 256

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Tue 1/12

8:05 p.m.-8:20 a.m.

2 stops9h 15m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 256

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sun 27/12

8:46 p.m.-5:28 a.m.

Nonstop5h 42m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 260

Quickest round-trip

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sun 20/12

10:30 p.m.-6:45 a.m.

Nonstop5h 15m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 262

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Mon 15/3

10:30 p.m.-9:16 a.m.

1 stop7h 46m

Boston Logan Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 271

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from San Diego to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Diego with our price prediction graph.

SAN-BOS

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Boston

Prices

Airlines

Delays

How far ahead should I book a flight from San Diego to Boston?

The best time to book flights from San Diego to Boston is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego to Boston?

Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of C$ 425). Flying from San Diego to Boston in December is currently the most expensive (average of C$ 624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to BOS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Boston as you normally would.

How much does it cost to fly round-trip from San Diego to Boston?

Airfare is below average for this route at the moment.

San Diego to Boston flights typically cost between C$ 364 and C$ 736 in December.
The cheapest round-trip price found within the last 5 days was C$ 248 on JetBlue (2 Dec-6 Dec).

Related info for your journey

How popular is this San Diego to Boston flight route?
The San Diego to Boston Logan Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from San Diego to Boston?
A quick flight from San Diego to Boston can take about 5h 22m. JetBlue provides one of the quickest options available for as low as C$ 348. San Diego and Boston are separated by a distance of 4154 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most reliable airlines from San Diego to Boston?
Before booking your flight to Boston from San Diego, check out the most reliable airlines to get you to your destination on time: KLM (100%), Japan Airlines (93%), Aer Lingus( 83%).
Can I find deals for flights from San Diego to Boston that include hotel bookings?
Yes. In addition to deals on San Diego to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Boston.
Can I find deals for business class flights from San Diego to Boston?
Yes. Cheapflights offers flight deals from San Diego to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Diego to Boston?
Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of C$ 425). Flying from San Diego to Boston in December is currently the most expensive (average of C$ 624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Cheapflights helps you search for flights from San Diego to Boston via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Boston?

Cheapflights simply makes it quick and affordable to book flights from San Diego to Boston by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from San Diego to Boston with no change fees?

Need flexible booking options for your flight to Boston from San Diego? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Boston become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from San Diego today and book when prices fit your budget.

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Cheap flights from San Diego to Boston from C$ 166

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Diego to Boston

Cheapest flights from San Diego to BostonExplore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Best flights from San Diego to BostonDiscover carefully curated flight deals from San Diego to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Discover carefully curated flight deals from San Diego to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Direct flights from San Diego to BostonExplore direct flight options from San Diego to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Explore direct flight options from San Diego to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated 4 November 2026 and is based on user searches.

Discover last-minute flight deals from San Diego to Boston. Data last updated 4 November 2026 and is based on user searches.

One-way flights from San Diego to BostonSearch for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

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Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Best time to book a flight from San Diego to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Diego with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from San Diego to Boston?

The best time to book flights from San Diego to Boston is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego to Boston?

What is the cheapest time of day to fly from SAN to BOS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Boston as you normally would.

How much does it cost to fly round-trip from San Diego to Boston?

Airfare is below average for this route at the moment.

San Diego to Boston flights typically cost between C$ 364 and C$ 736 in December.The cheapest round-trip price found within the last 5 days was C$ 248 on JetBlue (2 Dec-6 Dec).

Weekly flight availability from San Diego to Boston

The most flights from SAN to BOS are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from San Diego to Boston delayed?

About 19% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 174 minutes.

What is the most punctual flight time for San Diego to Boston flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Diego to Boston flights?

Over the past year, Delta has had the lowest number of delays on this route, with just 12% of flights being delayed.

Related info for your journey

How popular is this San Diego to Boston flight route?

How long is the flight from San Diego to Boston?

What are the most reliable airlines from San Diego to Boston?

Can I find deals for flights from San Diego to Boston that include hotel bookings?

How can I find direct flights from San Diego to Boston?

Can I find deals for business class flights from San Diego to Boston?

What is the cheapest month to book a flight from San Diego to Boston?

Travelling to a place near Boston?

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Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 November 2026.

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Can Cheapflights notify me if prices for flights from San Diego to Boston become cheaper?

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Cheapest flights from San Diego to Boston
Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2026.

Best flights from San Diego to Boston
Discover carefully curated flight deals from San Diego to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 November 2026.

Direct flights from San Diego to Boston
Explore direct flight options from San Diego to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 November 2026.

Last-minute flights from San Diego to Boston
Discover last-minute flight deals from San Diego to Boston. Data last updated 4 November 2026 and is based on user searches.

One-way flights from San Diego to Boston
Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated 4 November 2026.

San Diego to Boston flights typically cost between C$ 364 and C$ 736 in December.
The cheapest round-trip price found within the last 5 days was C$ 248 on JetBlue (2 Dec-6 Dec).