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Flights from Boston to San Diego

Find cheap airlines flights from Boston to San Diego

Choose from 4 carriers that fly from Boston to San Diego, including Alaska Airlines, Jetblue Airways, and Hawaiian Airlines. Enjoy the cheapest tickets on this route with Hawaiian Airlines.
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Cheap flight deals from Boston to San Diego

Non stop flight deals! Book direct flights from Boston to San Diego: One way flights from $95, round trip flights from $192. Cheapest next 3 months.

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

Flight Info | Boston to San Diego

The distance between Boston and San Diego is about 4,155.79 km. It takes around 6 hours 41 minutes on average to fly from Boston to San Diego. The most popular month to San Diego is March. The off-season for travel is May.

Cheapest one-way flight price $95
Cheapest round-trip ticket price $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 fly from Boston to San Diego?

The cheapest time for Boston to San Diego flights: Aug 24 to Aug 31 — one way flight prices from $95.

Cheapest flights
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  • Sep

    31 7
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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 $363.

  • 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
Be flexible with your travel dates to get the cheapest Boston to San Diego ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Boston to San Diego for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $95 for a one-way ticket on Wed, Aug 27.
2
Compare cheap Boston to San Diego flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Boston to San Diego. The most affordable airline currently operating on this route is Hawaiian Airlines.
3
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Boston to San Diego route to track ticket prices effortlessly—no need to check manually every day.
4
Don't miss out on cheap Boston to San Diego flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
5
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
6
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Boston to San Diego to access exclusive deals just for you.

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