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Cheap flights from Boston to San Diego from £97

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
15 Jan — 22 Jan1
1 adult

Cheap flight deals from Boston to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 January 2025.

Round-trip from

£160

One-way from

£97

Popular in

December

Cheapest in

January

Average price

£257
Delta
  • Delta
  • 27/1-3/2
  • Nonstop
  • 11h 57m total
  • Boston to San Diego
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Delta
  • Delta
  • 9/2
  • Nonstop
  • 6h 39m total
  • Boston to San Diego
Search Deals
High demand for flights, 0% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Boston to San Diego

Cheapest flights from Boston to San Diego
Explore the most affordable flight options available from Boston to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 January 2025.

Mon 27/117:20BOS - SAN
Nonstop6h 39mDelta
Mon 3/222:05SAN - BOS
Nonstop5h 18mDelta
Deal found 10/1£160
Wed 5/206:25BOS - SAN
3 stops18h 53mSpirit Airlines
Sat 8/216:21SAN - BOS
2 stops14h 07mSpirit Airlines
Deal found 9/1£166
Thu 6/216:30BOS - SAN
Nonstop6h 47mAlaska Airlines
Wed 12/209:35SAN - BOS
1 stop19h 09mAlaska Airlines
Deal found 10/1£168
Fri 31/115:45BOS - SAN
Nonstop6h 33mJetBlue
Tue 4/211:21SAN - BOS
1 stop7h 33mJetBlue
Deal found 10/1£184
Sat 8/212:50BOS - SAN
2 stops11h 05mSouthwest
Sat 15/206:25SAN - BOS
1 stop9h 05mSouthwest
Deal found 9/1£217
Mon 27/118:15BOS - SAN
1 stop8h 43mUnited Airlines
Tue 28/106:15SAN - BOS
2 stops9h 45mUnited Airlines
Deal found 10/1£218
Sun 23/205:40BOS - SAN
3 stops30h 21mMultiple Airlines
Thu 10/418:10SAN - BOS
1 stop13h 32mMultiple Airlines
Deal found 9/1£273
Wed 30/711:34BOS - SAN
1 stop8h 45mSun Country Air
Sun 3/818:23SAN - BOS
1 stop13h 14mSun Country Air
Deal found 10/1£325

Find flights from Boston to San Diego within your budget

Customise your flight search to find flights from Boston to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 10 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 27/1

17:20-20:59

Nonstop6h 39m

San Diego

Mon 3/2

22:05-06:23

Nonstop5h 18m

£160

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 5/2

06:25-22:18

3 stops18h 53m

San Diego

Sat 8/2

16:21-09:28

2 stops14h 07m

£166

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 6/2

16:30-20:17

Nonstop6h 47m

San Diego

Wed 12/2

09:35-07:44

1 stop19h 09m

£168

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 31/1

15:45-19:18

Nonstop6h 33m

San Diego

Tue 4/2

11:21-21:54

1 stop7h 33m

£184

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 24/1

15:14-22:30

1 stop10h 16m

San Diego

Fri 31/1

20:51-07:26

1 stop7h 35m

£209

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 8/2

12:50-20:55

2 stops11h 05m

San Diego

Sat 15/2

06:25-18:30

1 stop9h 05m

£217

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sun 23/2

05:40-09:01

3 stops30h 21m

San Diego

Thu 10/4

18:10-10:42

1 stop13h 32m

£273

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 3/7

11:34-17:19

1 stop8h 45m

San Diego

Sun 27/7

09:00-23:43

1 stop11h 43m

£334

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sun 9/2

16:30-20:17

Nonstop6h 47m

£97

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 24/1

17:20-20:59

Nonstop6h 39m

£101

Flights are sorted by cheapest return flights first.

Deals found on 10/1

Showing 1-10 of 15 results
1
2

Best time to book a flight from Boston to San Diego

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

Travel insights for flights from Boston to San Diego

Get recent, data-driven insights about flights from Boston to San Diego including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Boston to San Diego. Price data was last updated on 3 January 2025.

To ensure you get the cheapest price possible for a flight from Boston to San Diego, you should look to book at least 62 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 Boston to San Diego?

Currently, January is the cheapest month in which you can book a flight from Boston to San Diego (average of £585). Flying from Boston to San Diego in July is currently the most expensive (average of £920). 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 BOS to SAN?

Find hourly flight availability from Boston to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 January 2025.

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

Weekly flight availability from Boston to San Diego

Explore weekly flight availability from Boston to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 January 2025.

The most flights from BOS to SAN are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 10 January 2025.
Get a feel of what it's like to fly with JetBlue, Southwest and Delta from Boston to San Diego by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very Good
4,653 reviews
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very Good
9,643 reviews
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very Good
8,503 reviews
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,191 reviews
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,944 reviews
Southwest
8.1
Very Good
4,653 reviews
Check prices

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Boston to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Boston to San Diego flight route?

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

  • What are the cheapest airlines flying from Boston to San Diego round-trip?

    Currently priced at £160, Delta will fly you from Boston to San Diego and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Alaska Airlines - these airlines can fly you to your destination from £166 and £168, respectively. Delta is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to San Diego one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as £97. Users have also found prices from £104 and £105 on Alaska Airlines and United Airlines, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to San Diego on time: EL AL (88%), Aer Lingus (85%), JetBlue (80%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to San Diego 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 Boston to San Diego?

    Currently, January is the cheapest month in which you can book a flight from Boston to San Diego (average of £585). Flying from Boston to San Diego in July is currently the most expensive (average of £920). 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.

See more FAQs

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Alternative routes for Boston to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Boston to San Diego?

When you search for this flight from Boston to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from Boston.

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

Yes, we can. To see specific flights from Boston to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Boston to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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