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Cheap flights from Boston to San Diego from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Diego departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to San Diego

Cheap round-trip flights

These are some of the best round-trip flight deals from Boston to San Diego that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to San Diego.

Cheap last minute flights

Planning a quick getaway from Boston to San Diego? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Diego, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Boston to San Diego

Find recent round-trip train or bus tickets from Boston to San Diego.

All round-trip flight deals to San Diego

The cheapest plane tickets to San Diego found on KAYAK recently.
12:38 pm - 1:29 pmBOS-SAN
27h 51m2 stops
6:25 am - 12:27 amSAN-BOS
39h 02m2 stops
$193Frontier
Find Deal
Mon, Jan 13 - Wed, Jan 22
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$197Delta
Find Deal
Wed, Jan 15 - Tue, Jan 21
5:01 am - 10:11 amBOS-SAN
8h 10m1 stop
1:15 pm - 9:40 pmSAN-BOS
5h 25mnonstop
$206JetBlue
Find Deal
Wed, Jan 15 - Wed, Jan 22
11:28 am - 7:45 pmBOS-SAN
11h 17m1 stop
9:00 pm - 10:46 amSAN-BOS
10h 46m1 stop
$216JetBlue
Find Deal
Wed, Jan 22 - Wed, Jan 29
5:24 pm - 9:12 pmBOS-SAN
6h 48mnonstop
6:20 am - 11:59 pmSAN-BOS
14h 39m1 stop
$226Alaska Airlines
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Wed, Jan 22 - Sat, Jan 25
6:59 pm - 1:07 pmBOS-SAN
21h 08m1 stop
8:20 am - 4:55 pmSAN-BOS
5h 35mnonstop
$231Alaska Airlines
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Fri, Jan 31 - Wed, Feb 5
11:59 am - 8:10 pmBOS-SAN
11h 11m1 stop
6:33 am - 4:46 pmSAN-BOS
7h 13m1 stop
$236American Airlines
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Sat, Jan 18 - Wed, Jan 29
2:40 pm - 9:05 pmBOS-SAN
9h 25m1 stop
9:55 pm - 9:34 amSAN-BOS
8h 39m1 stop
$238American Airlines
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Mon, Jan 13 - Wed, Jan 22
3:14 pm - 10:30 pmBOS-SAN
10h 16m1 stop
8:51 pm - 7:26 amSAN-BOS
7h 35m1 stop
$257United Airlines
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Fri, Jan 10 - Mon, Jan 13
6:00 pm - 11:58 pmBOS-SAN
8h 58m1 stop
10:30 pm - 9:50 amSAN-BOS
8h 20m1 stop
$286United Airlines
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Thu, Feb 27 - Sun, Mar 2
6:00 am - 11:52 pmBOS-SAN
20h 52m2 stops
$90Frontier
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Wed, Feb 5
11:55 am - 5:56 pmBOS-SAN
9h 01m1 stop
$91Frontier
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Mon, Jan 6
3:10 pm - 6:36 pmBOS-SAN
6h 26mnonstop
$99JetBlue
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Wed, Mar 26
12:58 pm - 8:27 pmBOS-SAN
10h 29m1 stop
$108JetBlue
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Tue, Feb 25
4:23 pm - 8:22 pmBOS-SAN
6h 59mnonstop
$119Alaska Airlines
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Mon, Feb 24
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
$124Delta
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Fri, Jan 24
5:30 pm - 10:04 amBOS-SAN
19h 34m1 stop
$134Alaska Airlines
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Sat, Mar 22
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
$149Delta
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Fri, Feb 21
8:45 am - 8:05 pmBOS-SAN
14h 20m2 stops
$163American Airlines
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Tue, Jan 21
4:30 pm - 8:17 pmBOS-SAN
6h 47mnonstop
$165American Airlines
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Sun, Jan 26
5:10 pm - 8:45 pmBOS-SAN
6h 35mnonstop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$422Delta
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Wed, Dec 25 - Wed, Jan 15
6:00 am - 12:18 pmBOS-SAN
9h 18m1 stop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$432Delta
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Wed, Dec 25 - Wed, Jan 15
12:16 pm - 6:40 pmBOS-SAN
9h 24m1 stop
10:45 pm - 10:21 amSAN-BOS
8h 36m1 stop
$531American Airlines
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Wed, Dec 25 - Sun, Jan 5
6:59 pm - 7:39 amBOS-SAN
15h 40m1 stop
9:22 am - 5:59 pmSAN-BOS
5h 37mnonstop
$569Alaska Airlines
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Thu, Dec 26 - Tue, Dec 31
8:30 am - 3:54 pmBOS-SAN
10h 24m1 stop
6:23 am - 5:39 pmSAN-BOS
8h 16m1 stop
$579American Airlines
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Sat, Dec 28 - Sun, Jan 5
8:05 am - 11:41 amBOS-SAN
6h 36mnonstop
8:30 pm - 4:54 amSAN-BOS
5h 24mnonstop
$583JetBlue
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Wed, Dec 25 - Tue, Jan 7
7:17 pm - 7:39 amBOS-SAN
15h 22m1 stop
9:22 am - 5:59 pmSAN-BOS
5h 37mnonstop
$587Alaska Airlines
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Sat, Dec 28 - Wed, Jan 1
12:40 pm - 7:13 pmBOS-SAN
9h 33m1 stop
8:30 pm - 4:54 amSAN-BOS
5h 24mnonstop
$592JetBlue
Find Deal
Wed, Dec 25 - Tue, Jan 7
12:20 pm - 6:54 pmBOS-SAN
9h 34m1 stop
6:15 am - 4:53 pmSAN-BOS
7h 38m1 stop
$662United Airlines
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Wed, Dec 25 - Thu, Dec 26
5:45 am - 11:27 amBOS-SAN
8h 42m1 stop
6:47 pm - 5:57 amSAN-BOS
8h 10m1 stop
$670United Airlines
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Wed, Dec 25 - Mon, Dec 30
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$197Delta
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Wed, Jan 15 - Wed, Jan 22
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$217Delta
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Sat, Jan 18 - Tue, Jan 21
4:30 pm - 8:17 pmBOS-SAN
6h 47mnonstop
8:20 am - 4:55 pmSAN-BOS
5h 35mnonstop
$222Alaska Airlines
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Fri, Jan 10 - Wed, Jan 15
5:20 pm - 8:59 pmBOS-SAN
6h 39mnonstop
10:05 pm - 6:23 amSAN-BOS
5h 18mnonstop
$237Delta
Find Deal
Sat, Jan 18 - Sat, Feb 15
3:45 pm - 7:18 pmBOS-SAN
6h 33mnonstop
8:30 pm - 4:43 amSAN-BOS
5h 13mnonstop
$242JetBlue
Find Deal
Thu, Feb 6 - Sun, Feb 9
6:29 am - 10:07 amBOS-SAN
6h 38mnonstop
8:27 pm - 4:40 amSAN-BOS
5h 13mnonstop
$247JetBlue
Find Deal
Fri, Feb 21 - Tue, Feb 25
6:00 am - 9:35 amBOS-SAN
6h 35mnonstop
8:48 pm - 5:01 amSAN-BOS
5h 13mnonstop
$262JetBlue
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Tue, Mar 11 - Fri, Mar 14
4:30 pm - 8:17 pmBOS-SAN
6h 47mnonstop
8:20 am - 4:55 pmSAN-BOS
5h 35mnonstop
$335American Airlines
Find Deal
Mon, Jan 13 - Wed, Jan 22
4:23 pm - 8:22 pmBOS-SAN
6h 59mnonstop
10:35 am - 6:59 pmSAN-BOS
5h 24mnonstop
$337Alaska Airlines
Find Deal
Thu, Feb 27 - Sun, Mar 2
4:49 pm - 8:36 pmBOS-SAN
6h 47mnonstop
10:11 am - 6:59 pmSAN-BOS
5h 48mnonstop
$448American Airlines
Find Deal
Sat, Mar 22 - Thu, Mar 27

JetBlue flights from Boston to San Diego

Our best JetBlue deals on Boston to San Diego flight tickets
JetBlue
Jan 15
BOS5:01 amBoston Logan Intl
8h 10m
1 stop
SAN10:11 amSan Diego
Jan 22
SAN1:15 pmSan Diego
5h 25m
BOS9:40 pmBoston Logan Intl
JetBlue
Jan 22
BOS11:28 amBoston Logan Intl
11h 17m
1 stop
SAN7:45 pmSan Diego
Jan 29
SAN9:00 pmSan Diego
10h 46m
1 stop
BOS10:46 amBoston Logan Intl
JetBlue
Jan 31
BOS3:45 pmBoston Logan Intl
6h 33m
SAN7:18 pmSan Diego
Feb 4
SAN8:30 pmSan Diego
5h 24m
BOS4:54 amBoston Logan Intl

Spirit Airlines flights from Boston to San Diego

Our best Spirit Airlines deals on Boston to San Diego flight tickets
Spirit Airlines
Jan 10
BOS7:13 amBoston Logan Intl
18h 05m
2 stops
SAN10:18 pmSan Diego
Jan 15
SAN6:15 amSan Diego
23h 11m
2 stops
BOS8:26 amBoston Logan Intl
Spirit Airlines
Feb 12
BOS8:45 amBoston Logan Intl
18h 25m
2 stops
SAN12:10 amSan Diego
Feb 18
SAN3:00 pmSan Diego
19h 50m
2 stops
BOS1:50 pmBoston Logan Intl
Spirit Airlines
Jan 10
BOS3:50 pmBoston Logan Intl
29h 09m
3 stops
SAN5:59 pmSan Diego
Jan 15
SAN6:15 amSan Diego
23h 11m
2 stops
BOS8:26 amBoston Logan Intl

See travel insights to San Diego from

How to get the cheapest flight ticket from Boston to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from Boston during the month May is also very affordable. Most momondo users find prices during this month for around $351.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Boston to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $351. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $453. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $186. Flights in the morning are often more expensive with an average ticket price of $412.

What is the cheapest Boston Logan Intl to San Diego flight route?

Fly from Boston Logan Intl to San Diego for the best Boston Logan Intl - San Diego flight prices

How far in advance should I book a flight to San Diego?

Most flyers found that booking tickets 53 days in advance of their planned departure date is the best time to get cheap flights to San Diego. During this timeframe, flight prices are around $395. However, in the past 72 hours, people saw flights from Boston for as low as $296.

What cabin class options are available on Boston Logan Intl to San Diego flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to San Diego flights?

You could potentially save up to 9% on your flight if you consider stops on a Boston to San Diego flight.

How have Boston to San Diego flight prices changed over time?

As of December 2024, prices for Boston to San Diego flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Boston to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to San Diego (BOS to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Diego

Best Price Found

$90

Fastest flight time

5h 55m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Boston in the past 72 hours is $90. The best round-trip flight deal from Boston to San Diego found on momondo in the last 72 hours is $193.
The fastest flight from Boston to San Diego takes 5h 55m
Direct flights go from Boston to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is Boston Logan Intl to San Diego by plane?

    A flight from Boston Logan Intl to San Diego will travel around 2576.8 mi. In terms of flight time, this usually takes a little over 5h 55m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to San Diego Airport?

    Prices for flights from Boston Logan Intl Airport to San Diego Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to San Diego?

  • What is the most popular airline from Boston to San Diego?


Best airlines flying from Boston to San Diego

Compare and see reviews for airlines that fly from Boston to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $84Free CancellationRating
6.1
3,468 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $114Free CancellationRating
6.3
8,107 reviews
Search Spirit Airlines flights
DeltaPriceFrom $165Free CancellationRating
8.0
8,580 reviews
Search Delta flights
Sun Country AirPriceFrom $166Free CancellationRating
7.0
392 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $167Free CancellationRating
8.0
9,555 reviews
Search Alaska Airlines flights
JetBluePriceFrom $180Free CancellationRating
7.4
3,260 reviews
Search JetBlue flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,009 reviews
Search United Airlines flights
SouthwestPriceFrom $295Free CancellationRating
8.1
4,765 reviews
Search Southwest flights
  • Delta Flights From Boston to San Diego

    Across 7 Delta flights from Boston to San Diego this week, the average price was $397, with the best Delta deals starting from $165 round-trip. 8,580 users have rated Delta on momondo, with an average score of 8.0/10.

  • Alaska Airlines Flights From Boston to San Diego

    $167 is the best Alaska Airlines flight deal from Boston to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $425, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 9,555 user reviews) flies into San Diego from Boston 1 time in an average week so prices can vary.


Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Diego?

It is quick and easy to find Boston to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Boston to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to San Diego right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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