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Flights from Boston to San Diego

Cheapest airlines flights from Boston to San Diego

Fly from Boston to San Diego with 4 carriers, including Alaska Airlines, Jetblue Airways, and Hawaiian Airlines. Hawaiian Airlines offers the cheapest flights from Boston to San Diego.
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Find cheap flights from Boston to San Diego

Non stop flights available! Find direct flights from Boston to San Diego within the next 3 months. Book one way flights from US$95 or round trip tickets from US$192.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Boston to San Diego Flight Information

Fly from Boston to San Diego in about ${{duration}} across 4,155.79 km. The most popular travel month is ${{peakMonth}}, while ${{lowMonth}} offers the best deals for this route.

Cheapest one-way flight price US$95
Cheapest round-trip ticket price US$192
Off-season for travel May
Peak season for travel March
Flight distance 4,155.79 km
Average flight time 6 hours 41 minutes
Popular airline Alaska Airlines

When is the cheapest time to book flights from Boston to San Diego?

Best time for cheap flights from Boston to San Diego are between Aug 24 and Aug 31 with one way fares from US$95

Cheapest flights
From price
Search
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
  • 7 14
  • 14 21
  • 21 28
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Boston (BOS) to San Diego (SAN) the cheapest?

    Airlines adjust prices for flights from Boston to San Diego based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Boston (BOS) to San Diego (SAN) cost?

    According to Trip.com's data, the lowest price is around $362.

  • How long does it take to fly from Boston (BOS) to San Diego (SAN) and what is the distance?

    It takes around 6 hours 41 minutes to fly from Boston (BOS) to San Diego (SAN).

  • What are the most popular airlines that fly from Boston (BOS) to San Diego (SAN)?

How to find a cheap flight from Boston to San Diego

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to San Diego. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Boston to San Diego ticket.
Tap "Date" on flight search bar to scan through the calender for Boston to San Diego airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Wed, Aug 27 at US$95 for one-way flights.
2
Compare cheap Boston to San Diego flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Boston to San Diego. The cheapest airline operating is Hawaiian Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Boston to San Diego route, you can easily track the price of your airline tickets from Boston to San Diego without manually checking every day.
4
Don't miss cheap Boston to San Diego flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Boston to San Diego to get exclusive deals for you.

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