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San Diego

$127+ Cheap flights from Maryland to San Diego (SAN)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAN
Jul 28 — Aug 41
Tue 7/28
Tue 8/4
1 adult, Economy
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Cheap flight deals from Maryland to San Diego

Cheapest flights from Maryland to San Diego
Explore the most affordable flight options available from Maryland to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Tue 8/186:25 am
SAN
-
BWI
2 stops11h 12m
Frontier
Deal found 6/25$302
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Wed 8/263:45 pm
SAN
-
BWI
2 stops17h 39m
Frontier
Deal found 6/23$304
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Tue 8/186:25 am
SAN
-
BWI
2 stops11h 12m
Frontier
Deal found 6/25$307
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/92:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Thu 8/206:25 am
SAN
-
BWI
2 stops11h 12m
Frontier
Deal found 6/25$308
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Mon 8/178:51 pm
SAN
-
BWI
2 stops12h 33m
Frontier
Deal found 6/26$309
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Mon 8/246:25 am
SAN
-
BWI
2 stops14h 19m
Frontier
Deal found 6/23$310
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:25 pm
BWI
-
SAN
1 stop7h 36m
Frontier
Tue 7/287:46 pm
SAN
-
BWI
2 stops14h 54m
Frontier
Deal found 6/24$311
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:25 pm
BWI
-
SAN
1 stop7h 35m
Frontier
Fri 8/216:25 am
SAN
-
BWI
2 stops14h 19m
Frontier
Deal found 6/26$312
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:25 pm
BWI
-
SAN
1 stop7h 36m
Frontier
Thu 7/304:12 pm
SAN
-
BWI
2 stops19h 14m
Frontier
Deal found 6/24$313
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:25 pm
BWI
-
SAN
1 stop7h 36m
Frontier
Wed 7/294:38 pm
SAN
-
BWI
2 stops18h 48m
Frontier
Deal found 6/25$314
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:25 pm
BWI
-
SAN
1 stop7h 36m
Frontier
Mon 8/38:51 pm
SAN
-
BWI
2 stops18h 18m
Frontier
Deal found 6/27$315
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:25 pm
BWI
-
SAN
1 stop7h 36m
Frontier
Thu 8/64:28 pm
SAN
-
BWI
2 stops18h 58m
Frontier
Deal found 6/25$316

Find flight deals from Maryland to San Diego

Keep the following information in mind while searching for Maryland to San Diego flight deals. Data was last updated June 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$300
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$506

Good round-trip deal

$454 or less

Good one-way deal

$238 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Diego flights.
Search Deals
From Maryland to San Diego
Search Deals
One-way flight from Maryland to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Maryland to San Diego.
Search Deals
Price to beat on a one-way flight from Maryland to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maryland to San Diego 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 June 28, 2026.
Use the filters below to find and compare flights from Maryland to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 9/5

5:00 pm-11:00 pm

1 stop9h 00m

San Diego

Tue 9/8

12:52 pm-11:26 pm

1 stop7h 34m

$327

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 8/22

4:55 pm-9:00 pm

1 stop7h 05m

San Diego

Sat 8/29

7:35 am-3:35 pm

Nonstop5h 00m

$327

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 8/17

8:30 pm-10:45 pm

Nonstop5h 15m

San Diego

Sat 8/22

6:15 pm-6:35 am

1 stop9h 20m

$357

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 11/5

6:59 pm-11:55 pm

1 stop7h 56m

San Diego

Tue 11/10

2:00 pm-12:26 am

1 stop7h 26m

$367

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 8/21

6:15 am-10:20 am

1 stop7h 05m

San Diego

Tue 8/25

11:30 am-9:28 pm

1 stop6h 58m

$367

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 9/4

12:30 pm-6:14 pm

1 stop8h 44m

San Diego

Tue 9/8

7:11 pm-6:18 am

1 stop8h 07m

$367

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 8/15

6:15 pm-8:30 pm

Nonstop5h 15m

San Diego

Sat 8/22

6:15 pm-6:35 am

1 stop9h 20m

$372

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Fri 9/4

6:00 pm-8:29 pm

Nonstop5h 29m

San Diego

Mon 9/7

10:40 pm-9:28 am

1 stop7h 48m

$397

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Tue 8/4

8:59 am-11:39 am

Nonstop5h 40m

San Diego

Wed 8/12

12:42 pm-9:00 pm

Nonstop5h 18m

$397
Quickest round-trip

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Fri 12/4

10:59 am-1:23 pm

Nonstop5h 24m

San Diego

Thu 12/17

12:39 pm-9:00 pm

Nonstop5h 21m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Maryland to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Maryland 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 Maryland to San Diego

What is the cheapest month to book a flight from Maryland to San Diego?

Currently, September is the cheapest month in which you can book a flight from Maryland to San Diego (average of $58). Flying from Maryland to San Diego in June is currently the most expensive (average of $238). 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 MD to SAN?

Find hourly flight availability from Maryland to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 28, 2026.

One of the essential ways to save on airfare from Maryland to San Diego is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 35% on airfare.

How much does it cost to fly round-trip from Maryland to San Diego?

How far ahead should I book a flight from Maryland to San Diego?

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Maryland to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Maryland to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Maryland to San Diego. Price data was last updated on June 27, 2026.

Travelers seeking maximum savings on their Maryland to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Maryland to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Maryland?

    For a flight from Maryland to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city.

  • How popular is this Maryland to San Diego flight route?

    This flight path from Maryland to San Diego was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Maryland to San Diego?

    For as low as $327, Delta can have you in San Diego from Maryland in 7h 05m. The distance between Maryland and San Diego is about 2289 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Maryland to San Diego one-way?

    One-way options have recently been found by users for as low as $83 on Frontier. Other airlines that offer cheap prices include American Airlines from $128 and United Airlines from $128 one-way.

  • What are the most popular routes from Maryland to San Diego?

    While some choose either Baltimore/Washington - San Diego or Washington, D.C. Reagan-National - San Diego, Washington, D.C. Dulles Intl - San Diego is the most popular route from Maryland to San Diego.

  • What are the cheapest flights from Maryland to San Diego?

    The cheapest flight price from Maryland to San Diego is $193. On average you can expect to pay $412. The most popular route, (Washington, D.C. Dulles Intl - San Diego), can usually be booked for $295.

  • Can I find deals for flights from Maryland to San Diego that include hotel bookings?

    Yes. In addition to deals on Maryland to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maryland to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to San Diego.

  • Can I find deals for business class flights from Maryland to San Diego?

    Yes. Cheapflights offers flight deals from Maryland to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Maryland to San Diego?

    Currently, September is the cheapest month in which you can book a flight from Maryland to San Diego (average of $58). Flying from Maryland to San Diego in June is currently the most expensive (average of $238). 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
National City
Chula Vista
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove

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Top 7 airlines flying from Maryland to San Diego

Discover the top 7 airlines that operate flights from Maryland to San Diego. 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 June 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$222FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$192Average$381FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$408FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$257Average$349FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$286Average$455FlexibilityNo cancel feeOn-time71%

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