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San Diego

$106+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAN
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
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 May 13, 2026.

This Super.com deal was found by Cheapflights users on 5/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:12 am
IAD
-
SAN
1 stop26h 35m
Frontier
Mon 6/159:43 am
SAN
-
IAD
1 stop19h 42m
Frontier
Deal found 5/10$302
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/811:07 am
IAD
-
SAN
2 stops39h 46m
Frontier
Mon 6/159:43 am
SAN
-
IAD
1 stop19h 42m
Frontier
Deal found 5/8$303
This Booking.com deal was found by Cheapflights users on 5/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/149:55 am
IAD
-
SAN
1 stop25h 53m
Frontier
Thu 6/189:43 am
SAN
-
IAD
1 stop19h 42m
Frontier
Deal found 5/8$304
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Fri 5/299:23 pm
BWI
-
SAN
2 stops26h 49m
Frontier
Tue 6/26:25 am
SAN
-
BWI
1 stop8h 00m
Frontier
Deal found 5/9$305
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 6/169:55 am
IAD
-
SAN
1 stop25h 53m
Frontier
Wed 6/244:47 pm
SAN
-
IAD
2 stops12h 38m
Frontier
Deal found 5/10$306
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/32:53 pm
IAD
-
SAN
1 stop7h 57m
United Airlines
Tue 6/99:45 pm
SAN
-
IAD
Nonstop5h 00m
United Airlines
Deal found 5/12$307
This Booking.com deal was found by Cheapflights users on 5/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:12 am
IAD
-
SAN
1 stop15h 00m
Frontier
Mon 6/17:36 pm
SAN
-
IAD
1 stop9h 36m
Frontier
Deal found 5/10$308
This Southwest deal was found by Cheapflights users on 5/11. 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.
Wed 8/124:30 pm
DCA
-
SAN
1 stop7h 15m
Southwest
Tue 8/186:35 am
SAN
-
DCA
1 stop7h 15m
Southwest
Deal found 5/11$308
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:26 pm
IAD
-
SAN
1 stop7h 59m
Multiple Airlines
Mon 6/16:19 pm
SAN
-
IAD
1 stop10h 15m
Multiple Airlines
Deal found 5/8$309
This Expedia deal was found by Cheapflights users on 5/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:26 pm
IAD
-
SAN
1 stop7h 59m
Frontier
Tue 5/2610:07 pm
SAN
-
IAD
1 stop7h 05m
Frontier
Deal found 5/9$310
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 5/269:12 am
IAD
-
SAN
1 stop15h 00m
Frontier
Fri 5/291:38 pm
SAN
-
IAD
2 stops17h 34m
Frontier
Deal found 5/9$311
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 6/61:26 pm
IAD
-
SAN
1 stop7h 59m
Frontier
Fri 7/244:17 pm
SAN
-
IAD
2 stops20h 34m
Frontier
Deal found 5/9$312

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 May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$302
(Super.com)

One-way from

$106
(Super.com)

Popular in

December

Cheapest in

January

Average price

$418

Good round-trip deal

$397 or less

Good one-way deal

$188 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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 13, 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

Wed 6/3

7:40 pm-10:25 pm

Nonstop5h 45m

San Diego

Tue 6/9

8:05 am-6:55 pm

1 stop7h 50m

$317

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 6/1

6:00 am-11:16 am

1 stop8h 16m

San Diego

Fri 6/5

12:41 pm-10:49 pm

1 stop7h 08m

$337

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 6/1

7:20 pm-10:00 pm

Nonstop5h 40m

San Diego

Tue 6/9

7:05 am-4:20 pm

1 stop6h 15m

$357

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Thu 9/3

4:30 pm-9:55 pm

2 stops8h 25m

San Diego

Wed 9/9

6:35 am-4:50 pm

1 stop7h 15m

$363

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Tue 6/2

3:00 pm-10:00 pm

2 stops10h 00m

San Diego

Thu 6/4

10:40 pm-8:25 am

1 stop6h 45m

$363

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 6/6

7:35 am-9:50 am

Nonstop5h 15m

San Diego

Sun 6/7

7:50 pm-5:40 am

1 stop6h 50m

$372
Quickest round-trip

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 7/26

9:10 pm-11:25 pm

Nonstop5h 15m

San Diego

Wed 7/29

9:40 pm-5:35 am

Nonstop4h 55m

$377

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Wed 6/3

6:10 am-3:00 pm

1 stop11h 50m

San Diego

Sun 6/7

10:40 pm-8:25 am

1 stop6h 45m

$377

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 8/19

6:00 pm-8:29 pm

Nonstop5h 29m

San Diego

Sun 8/23

9:45 pm-5:41 am

Nonstop4h 56m

$387

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Mon 8/31

7:29 pm-9:56 pm

Nonstop5h 27m

San Diego

Sun 9/6

10:01 am-6:14 pm

Nonstop5h 13m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

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

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

Booking 15 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 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 April is currently the most expensive (average of $236). 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 May 13, 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 38% on airfare.

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 May 9, 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. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 5 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 $387, Southwest can have you in San Diego from Maryland in 5h 29m. The distance between Maryland and San Diego is about 2248 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 $73 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $83 and United Airlines from $128 one-way.

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

    While some choose either Washington, D.C. Reagan-National - San Diego or Baltimore/Washington - 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 $148. On average you can expect to pay $365. The most popular route, (Washington, D.C. Dulles Intl - San Diego), can usually be booked for $244.

  • 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 April is currently the most expensive (average of $236). 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
Chula Vista
National City
Coronado
Poway
La Mesa
Julian
Lemon Grove

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Alternative routes for Maryland to San Diego

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Top 8 airlines flying from Maryland to San Diego

Discover the top 8 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 May 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$117Average$222FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$192Average$381FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$357FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$260Average$450FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$277Average$349FlexibilityNo cancel feeOn-time75%

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