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

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

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.

How often are flights from San Diego to Boston delayed?

About 17% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 172 minutes.

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.

How popular is this San Diego to Boston flight route?

Flights from San Diego to Boston Logan Intl have been viewed 1 times in the past calendar month.

How long is the flight from San Diego to Boston?

Airlines like Southwest fly from San Diego to Boston in about 5h 35m. The time it takes to get you to your destination is usually consistent. The distance from San Diego to Boston is about 2581 mi. Most flights are nonstop.

Weekly flight availability from San Diego to Boston

The most flights from SAN to BOS are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches 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?

The top 3 most reliable airlines when flying from San Diego to Boston are American Airlines (83%), Alaska Airlines (83%) and Qatar Airways (82%).

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 holiday 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.

£95+ Cheap Flights from San Diego to Boston

Cheap flight deals from San Diego to Boston

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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 27 August 2026.

Wed 21/1020:20 -

Nonstop6h 06m

Tue 27/1015:50 -

Nonstop6h 24m

Deal found 24/8£174

Sat 17/1020:34 -

Nonstop5h 47m

Thu 29/1018:14 -

Nonstop6h 21m

Deal found 25/8£176

Mon 26/1020:41 -

Nonstop5h 47m

Tue 27/1007:51 -

Nonstop6h 18m

Deal found 24/8£178

Sat 24/1020:20 -

Nonstop6h 06m

Mon 26/1007:00 -

Nonstop6h 31m

Deal found 24/8£181

Wed 23/914:15 -

1 stop7h 55m

Wed 30/911:45 -

1 stop8h 41m

Deal found 24/8£185

Fri 9/1021:53 -

Nonstop5h 42m

Sat 17/1017:10 -

Nonstop6h 18m

Deal found 24/8£189

Wed 23/922:46 -

1 stop7h 53m

Wed 30/914:58 -

1 stop9h 32m

Deal found 22/8£189

Fri 18/915:55 -

Nonstop5h 35m

Tue 22/909:05 -

Nonstop5h 55m

Deal found 23/8£191

Tue 15/914:15 -

1 stop7h 55m

Tue 22/915:49 -

1 stop8h 35m

Deal found 23/8£192

Mon 21/915:55 -

Nonstop5h 35m

Sat 26/908:40 -

1 stop10h 30m

Deal found 25/8£196

Tue 13/1022:40 -

1 stop7h 55m

Sat 24/1005:15 -

2 stops10h 05m

Deal found 24/8£200

Find flight deals from San Diego to Boston

Round-trip from	£174
One-way from	£95
Popular in	December
Cheapest in	October
Average price	£269

JetBlue
24/11-2/12
Nonstop
12h 01m total
San Diego to Boston

Search Deals

Southwest
19/9
Nonstop
5h 35m total
San Diego to Boston

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£2 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sat 17/10

20:34-05:21

Nonstop5h 47m

Boston Logan Intl

Sat 24/10

07:51-11:09

Nonstop6h 18m

£174

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Mon 14/9

22:04-06:40

Nonstop5h 36m

Boston Logan Intl

Fri 18/9

17:10-20:15

Nonstop6h 05m

£198

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Wed 23/9

15:55-00:30

Nonstop5h 35m

Boston Logan Intl

Wed 30/9

05:35-10:10

1 stop7h 35m

£203

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sat 17/10

06:30-19:45

1 stop10h 15m

Boston Logan Intl

Thu 29/10

10:50-14:05

Nonstop6h 15m

£208

Fastest return journey

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Thu 17/9

15:55-00:30

Nonstop5h 35m

Boston Logan Intl

Wed 23/9

09:05-12:00

Nonstop5h 55m

£209

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Fri 13/11

12:10-23:20

2 stops8h 10m

Boston Logan Intl

Tue 17/11

10:35-18:40

2 stops11h 05m

£211

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Fri 16/10

18:27-07:26

1 stop9h 59m

Boston Logan Intl

Tue 20/10

07:51-11:09

Nonstop6h 18m

£239

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Fri 30/10

21:50-08:40

1 stop7h 50m

Boston Logan Intl

Sun 1/11

05:10-10:30

1 stop8h 20m

£240

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Sun 18/10

06:53-06:12

1 stop20h 19m

Boston Logan Intl

Wed 21/10

07:51-11:09

Nonstop6h 18m

£247

Cheapest one-way

San DiegoBoston

SAN San Diego - BOS Boston Logan Intl

SANBOS

San Diego

Thu 22/10

13:46-22:58

Nonstop6h 12m

£95

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 21 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 return 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?

To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from San Diego to Boston (average of £224). Flying from San Diego to Boston in December is currently the most expensive (average of £330). 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?

Unlike in the morning, when flights are generally more expensive, you can save up to 75% on flights from San Diego to Boston by exploring options for tickets in the afternoon.

How much does it cost for a return flight from San Diego to Boston?

Airfare is below average for this route at the moment.

San Diego to Boston flights typically cost between £189 and £322 in October.
The cheapest return price found within the last 5 days was £174 on JetBlue (21 Oct–27 Oct).

Related info for your journey

How popular is this San Diego to Boston flight route?
Flights from San Diego to Boston Logan Intl have been viewed 1 times in the past calendar month.
How long is the flight from San Diego to Boston?
Airlines like Southwest fly from San Diego to Boston in about 5h 35m. The time it takes to get you to your destination is usually consistent. The distance from San Diego to Boston is about 2581 mi. Most flights are nonstop.
What are the most reliable airlines from San Diego to Boston?
The top 3 most reliable airlines when flying from San Diego to Boston are American Airlines (83%), Alaska Airlines (83%) and Qatar Airways (82%).
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 holiday 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, October is the cheapest month in which you can book a flight from San Diego to Boston (average of £224). Flying from San Diego to Boston in December is currently the most expensive (average of £330). 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 makes it easy to find San Diego to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Yes! Cheapflights helps users easily find flights from San Diego to Boston with no change fees.

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Cheap flights from San Diego to Boston from £95

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/10. 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 27 August 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 27 August 2026.

Best flights from San Diego to BostonDiscover carefully curated flight deals from San Diego to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 2026.

Discover carefully curated flight deals from San Diego to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 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 27 August 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 27 August 2026.

Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated 27 August 2026 and is based on user searches.

Discover last-minute flight deals from San Diego to Boston. Data last updated 27 August 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 27 August 2026.

Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated 27 August 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?

To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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?

Unlike in the morning, when flights are generally more expensive, you can save up to 75% on flights from San Diego to Boston by exploring options for tickets in the afternoon.

How much does it cost for a return flight from San Diego to Boston?

Airfare is below average for this route at the moment.

San Diego to Boston flights typically cost between £189 and £322 in October.The cheapest return price found within the last 5 days was £174 on JetBlue (21 Oct–27 Oct).

Weekly flight availability from San Diego to Boston

The most flights from SAN to BOS are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

How often are flights from San Diego to Boston delayed?

About 17% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 172 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 have 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?

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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 27 August 2026.

Best flights from San Diego to Boston
Discover carefully curated flight deals from San Diego to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 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 27 August 2026.

Last-minute flights from San Diego to Boston
Discover last-minute flight deals from San Diego to Boston. Data last updated 27 August 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 27 August 2026.

San Diego to Boston flights typically cost between £189 and £322 in October.
The cheapest return price found within the last 5 days was £174 on JetBlue (21 Oct–27 Oct).