Plan for traffic congestion around SAN, especially during peak times. Arrive early to avoid a last-minute rush to your gate.
$120+ Cheap flights from San Diego to Boston (SAN - BOS)
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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Jan 22 — Jan 291
1 adult, Economy
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Find cheap flights from San Diego to Boston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Diego to Boston Logan Intl are usually found in January or May, booked 67 days in advance, depart on a Wednesday or Friday and return on a Tuesday
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 December 23, 2025.
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 December 23, 2025.
This Alaska Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Sun 1/114:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 12/21![Alaska Airlines logo]()
$410
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 pmSAN - BOS
2 stops14h 05mUnited Airlines
Sun 1/116:00 amBOS - SAN
1 stop8h 48mUnited Airlines
Deal found 12/21![United Airlines logo]()
$430
This JetBlue deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:44 pmSAN - BOS
Nonstop5h 25mJetBlue
Sun 1/2512:15 pmBOS - SAN
1 stop10h 35mJetBlue
Deal found 12/21![JetBlue logo]()
$453
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:45 pmSAN - BOS
2 stops16h 58mUnited Airlines
Sun 1/257:25 amBOS - SAN
1 stop10h 39mUnited Airlines
Deal found 12/21![United Airlines logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Sun 1/46:30 amBOS - SAN
Nonstop6h 30mAlaska Airlines
Deal found 12/21![Alaska Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:55 pmSAN - BOS
1 stop7h 14mDelta
Sun 1/45:20 pmBOS - SAN
Nonstop6h 34mDelta
Deal found 12/21![Delta logo]()
$505
This JetBlue deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:27 amSAN - BOS
1 stop9h 49mJetBlue
Tue 1/134:44 pmBOS - SAN
Nonstop6h 36mJetBlue
Deal found 12/22![JetBlue logo]()
$511
This Alaska Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:27 pmSAN - BOS
Nonstop5h 43mAlaska Airlines
Tue 1/134:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 12/22![Alaska Airlines logo]()
$522
This Southwest deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:45 pmSAN - BOS
1 stop10h 15mSouthwest
Sun 1/46:15 amBOS - SAN
1 stop10h 05mSouthwest
Deal found 12/20![Southwest logo]()
$530
Find flight deals from San Diego to Boston
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Boston (BOS). 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 December 23, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $215 (Kiwi.com) |
One-way from | $120 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $477 |
Good round-trip deal | $287 or less |
Good one-way deal | $189 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Boston 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 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.
Fly from
San Diego
Fly to
Boston
Route
Depart
Return
Price
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 2/10
3:15 pm-11:38 pm
Nonstop5h 23m
Boston Logan Intl
Wed 2/18
4:00 pm-7:28 pm
Nonstop6h 28m
$217
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 2/3
9:10 am-5:39 pm
Nonstop5h 29m
Boston Logan Intl
Fri 2/6
4:20 pm-8:00 pm
Nonstop6h 40m
$227
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Thu 1/15
10:04 pm-6:30 am
Nonstop5h 26m
Boston Logan Intl
Tue 1/20
5:10 pm-8:50 pm
Nonstop6h 40m
$227
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 2/3
9:37 am-11:54 pm
1 stop11h 17m
Boston Logan Intl
Tue 2/10
4:20 pm-8:00 pm
Nonstop6h 40m
$237
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Wed 2/4
9:10 am-5:39 pm
Nonstop5h 29m
Boston Logan Intl
Mon 2/9
6:44 pm-10:07 am
1 stop18h 23m
$237
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 2/3
6:30 am-6:57 pm
2 stops9h 27m
Boston Logan Intl
Tue 2/10
7:25 am-12:59 pm
1 stop8h 34m
$242
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Wed 1/7
3:15 pm-11:39 pm
Nonstop5h 24m
Boston Logan Intl
Sat 1/10
4:05 pm-7:33 pm
Nonstop6h 28m
$247
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Thu 1/8
9:05 pm-5:30 am
Nonstop5h 25m
Boston Logan Intl
Sun 1/11
4:25 pm-7:54 pm
Nonstop6h 29m
$247
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Wed 1/7
9:30 pm-5:55 am
Nonstop5h 25m
Boston Logan Intl
Sun 1/11
4:25 pm-7:54 pm
Nonstop6h 29m
$247
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 1/13
9:00 pm-7:57 am
1 stop7h 57m
Boston Logan Intl
Wed 1/21
4:44 pm-8:20 pm
Nonstop6h 36m
$255
Showing 1-10 of 23 results
Compare providers for flights from San Diego to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Boston in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-Boston flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Diego-Boston flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Diego-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Boston flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
Estimated round-trip 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?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to Boston. Price data was last updated on December 19, 2025.
To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 67 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of $101). Flying from San Diego to Boston in June is currently the most expensive (average of $188). 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?
Find hourly flight availability from San Diego to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.
When flying from San Diego to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight in the morning.
What is the cheapest day to fly from San Diego to Boston?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Boston. Price data was last updated on December 20, 2025.
Travelers seeking maximum savings on their San Diego to Boston flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from San Diego to Boston delayed?
About 15% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 162 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 morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Friday 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 last year, Delta have had the lowest number of delays on this route, with just 11% of flights being delayed.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated December 23, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from San Diego to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Overall
8.0
Boarding
8.1
Food
7.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Related info for your journey
Find useful and relevant information for your journey from San Diego to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsCambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Brockton
Cranston
Lincoln
Lowell
Smithfield
Peabody
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from San Diego to Boston
Discover the top 8 airlines that operate flights from San Diego to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$130 | Average$256 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$348 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$142 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$350 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$228 | Average$417 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$236 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$239 | Average$440 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$242 | Average$435 | FlexibilityNo cancel fee | On-time75% |