S$128 Cheap Flights from Boston to San Diego

View S$128 flight on Tue, 27 Jan, 2026Opens in a new window

Popular airlines from Boston to San Diego, CA (SAN-San Diego Intl.)

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Cheap Flights from Boston to San Diego (BOS-SAN)

Prices were available within the past 7 days and start at S$128 for one-way flights and S$254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$254 Return, found 4 days ago
S$254
Return
found 4 days ago
Select Delta flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$254 found 4 days ago
Delta
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$267 Return, found 4 days ago
S$267
Return
found 4 days ago
Select Delta flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$267 found 4 days ago
Delta
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$280 Return, found 4 days ago
S$280
Return
found 4 days ago
Select Delta flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$280 found 4 days ago
American Airlines
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$339 Return, found 4 days ago
S$339
Return
found 4 days ago
Select American Airlines flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$339 found 4 days ago
Delta
Wed, 21 Jan - Fri, 23 Jan
BOS
Boston
SAN
San Diego
S$345 Return, found 3 days ago
S$345
Return
found 3 days ago
Select Delta flight, departing Wed, 21 Jan from Boston to San Diego, returning Fri, 23 Jan, priced at S$345 found 3 days ago
American Airlines
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$352 Return, found 4 days ago
S$352
Return
found 4 days ago
Select American Airlines flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$352 found 4 days ago
United
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$358 Return, found 4 days ago
S$358
Return
found 4 days ago
Select United flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$358 found 4 days ago
Delta
Wed, 21 Jan - Fri, 23 Jan
BOS
Boston
SAN
San Diego
S$365 Return, found 3 days ago
S$365
Return
found 3 days ago
Select Delta flight, departing Wed, 21 Jan from Boston to San Diego, returning Fri, 23 Jan, priced at S$365 found 3 days ago
United
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$365 Return, found 4 days ago
S$365
Return
found 4 days ago
Select United flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$365 found 4 days ago
United
Tue, 27 Jan - Wed, 28 Jan
BOS
Boston
SAN
San Diego
S$371 Return, found 4 days ago
S$371
Return
found 4 days ago
Select United flight, departing Tue, 27 Jan from Boston to San Diego, returning Wed, 28 Jan, priced at S$371 found 4 days ago

Find the cheapest month to fly from Boston (BOS) to San Diego (SAN)

March is typically the cheapest month to fly

From S$218 - S$437 per traveller.
Boston to San Diego route information
Origin airport
Logan Intl.
Destination airport
San Diego Intl.
Return price
S$254
Distance
4131 km
Average flight time
3 hours 37 mins

Perfect flights from Boston to San Diego

Your Journey from Boston to San Diego

Start your unforgettable journey with Expedia. Our broad selection of flights from Boston to San Diego caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United. Our selection of flights from Logan Intl. to San Diego Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Boston to San Diego Flights

Experience the joy of finding cheap flights from Logan Intl. to San Diego Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$128 and roundtrip prices from S$254*.
 

Pre-Flight Essentials

Ensure a smooth journey from Boston to San Diego with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant San Diego

Picture yourself stepping off the plane in San Diego and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Boston to San Diego Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Boston to San Diego.
 

Beyond the Flight – Exploring San Diego

With Expedia, your adventure extends beyond the flight. Explore San Diego at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Boston to San Diego with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Boston to San Diego with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Logan Intl. Airport (BOS) to San Diego Intl. Airport (SAN)?
The lowest price advertised for a round-trip flight between BOS and SAN is S$254. But you better get moving. This figure is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BOS to San Diego Intl. Airport (SAN)?
We get that things come up unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Logan Intl. Airport to San Diego Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BOS to San Diego Intl. Airport (SAN) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Logan Intl. Airport to San Diego Intl. Airport (SAN)?
It takes about 6 hours and 33 minutes to get from BOS (BOS) to SAN (SAN). But with some music and an interesting book, the time will pass by quicker.
How far is the flight from Logan Intl. Airport (BOS) to SAN?
Boston to San Diego is around 4,200 kilometres, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your toothbrush to your hairbrush. Take some snacks to nibble on throughout your trip too.
Which airlines fly direct from Logan Intl. Airport (BOS) to San Diego Airport?
JetBlue Airways (B6) is one of the top choices for many travellers flying between Logan Intl. Airport (BOS) and SAN. Take your pick of the 60 flights it operates on this route each month. Another airline operating on this route is Alaska Airlines (AS). You'll have 30 flights a month to choose from.
Are Logan Intl. Airport (BOS) to San Diego Intl. Airport (SAN) flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up a great last-minute deal from BOS to San Diego Intl. Airport (SAN), but it's also possible to miss out altogether! As many airlines release prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest easy knowing you're always seeing the latest offers.

Explore a world of travel with Expedia

*Available to Expedia members.