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$73+ Cheap flights from Baltimore to San Diego (BWI - 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAN
avr. 27 — mai 41
dim. 4/27
dim. 5/4
1 adult, Economy
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Find cheap flights from Baltimore to San Diego 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”

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Cheapflights Tip: The best prices from Baltimore/Washington to San Diego are usually found in August or July, booked 56 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Baltimore to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to San Diego (SAN). 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 avril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$260
(Mytrip)

One-way from

$73
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$495
Provider with most accurate pricing for Baltimore/Washington-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-San Diego flights.
Search Deals
From Baltimore/Washington to San Diego
Search Deals
One-way flight from Baltimore/Washington to San Diego
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Baltimore to San Diego

Cheapest flights from Baltimore to San Diego
Explore the most affordable flight options available from Baltimore to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 22, 2025.

This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/47:17 amBWI - SAN
1 stop15h 36mSpirit Airlines
lun. 6/98:08 amSAN - BWI
2 stops43h 02mSpirit Airlines
Deal found 4/22$262
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/56:12 pmBWI - SAN
1 stop9h 01mMultiple Airlines
sam. 5/178:00 amSAN - BWI
2 stops22h 13mMultiple Airlines
Deal found 4/22$269
This Frontier deal was found by Cheapflights users on 4/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/235:23 pmBWI - SAN
1 stop9h 36mFrontier
mer. 5/286:41 amSAN - BWI
1 stop6h 47mFrontier
Deal found 4/22$270
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/88:35 pmBWI - SAN
Nonstop5h 20mSouthwest
jeu. 7/178:55 pmSAN - BWI
Nonstop5h 05mSouthwest
Deal found 4/22$327
This Hawaiian Airlines deal was found by Cheapflights users on 4/22. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/107:51 amBWI - SAN
1 stop9h 48mHawaiian Airlines
mer. 9/105:27 pmSAN - BWI
1 stop10h 04mHawaiian Airlines
Deal found 4/22$341
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/196:25 pmBWI - SAN
1 stop8h 04mDelta
sam. 6/2810:30 pmSAN - BWI
1 stop9h 22mDelta
Deal found 4/22$347
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/107:00 amBWI - SAN
1 stop9h 40mUnited Airlines
mer. 9/107:21 pmSAN - BWI
2 stops13h 39mUnited Airlines
Deal found 4/22$348
This Sun Country Air deal was found by Cheapflights users on 4/22. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/2212:25 pmBWI - SAN
1 stop7h 36mSun Country Air
dim. 7/276:01 pmSAN - BWI
1 stop14h 22mSun Country Air
Deal found 4/22$385
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
jeu. 10/167:30 amBWI - SAN
1 stop12h 07mAlaska Airlines
lun. 10/205:25 pmSAN - BWI
1 stop9h 20mAlaska Airlines
Deal found 4/22$422

Cheapflights Fare Finder

Customize your flight search to find flights from Baltimore 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 avril 22, 2025.
Use the filters below to find and compare flights from Baltimore to San Diego that are best for you.

Fly from

Baltimore

Fly to

San Diego

Route

Depart

Return

Price

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

lun. 5/5

2:53 pm-12:42 am

2 stops12h 49m

San Diego

jeu. 5/8

1:06 pm-6:10 am

2 stops14h 04m

$260

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

lun. 5/5

6:12 pm-12:13 am

1 stop9h 01m

San Diego

ven. 5/9

6:58 pm-11:46 am

2 stops13h 48m

$262

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

ven. 5/23

5:23 pm-11:59 pm

1 stop9h 36m

San Diego

mer. 5/28

6:41 am-4:28 pm

1 stop6h 47m

$270

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

ven. 5/30

8:35 pm-11:15 pm

Nonstop5h 40m

San Diego

mar. 6/3

9:20 pm-5:20 am

Nonstop5h 00m

$327

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

jeu. 5/22

6:15 am-12:56 pm

1 stop9h 41m

San Diego

dim. 5/25

10:00 pm-8:51 am

1 stop7h 51m

$347

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

jeu. 6/5

12:25 pm-5:07 pm

1 stop7h 42m

San Diego

mer. 7/16

6:01 pm-11:23 am

1 stop14h 22m

$395

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

mer. 5/28

7:17 am-7:53 pm

1 stop15h 36m

$82

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

mer. 5/28

5:23 pm-10:49 pm

1 stop8h 26m

$88

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

ven. 6/6

8:05 pm-10:30 pm

Nonstop5h 25m

$164

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

ven. 6/20

6:25 pm-11:29 pm

1 stop8h 04m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 15 results
1
2

Compare providers for flights from Baltimore to San Diego

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 Baltimore to San Diego in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-San Diego flights, Cheapflights users trust eDreams the most. eDreams 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 Baltimore-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Baltimore to San Diego flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Diego trip
Airports
BWI

For long-term parking, BWI offers budget-friendly lots with shuttle service. Allow extra time for shuttle transit to the terminal.

Read more about BWIby Emily Zemler
SAN

For a wallet-friendly option, take the free San Diego Flyer shuttle between SAN and Old Town Transit Center.

Read more about SANby Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Emily Zemler

Emily Zemler

Expert on BWI

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Baltimore to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to San Diego. Price data was last updated on April 18, 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore 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 Baltimore to San Diego?

Currently, August is the cheapest month in which you can book a flight from Baltimore to San Diego (average of $286). Flying from Baltimore to San Diego in March is currently the most expensive (average of $366). 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 BWI to SAN?

Find hourly flight availability from Baltimore 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 avril 22, 2025.

It’s typically best to fly out from Baltimore to San Diego in the morning. Doing so could potentially save you 61% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Baltimore to San Diego. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Baltimore to San Diego flight should consider departing on Sunday at noon 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated avril 22, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Baltimore to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Baltimore 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 airports do I use to fly from Baltimore to San Diego?

    Booking a flight from Baltimore/Washington (BWI) to San Diego (SAN) is your only option if you wish to fly from Baltimore to San Diego. On a typical day, there are 2 flights from Baltimore/Washington to San Diego, all of which are around 5h 20m for a nonstop flight. You can also purchase a plane ticket from 7 airlines when you book a flight from Baltimore/Washington to San Diego.

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

    Within the past month, 24 users have taken a look at flights from Baltimore/Washington to San Diego.

  • What are the cheapest airlines flying from Baltimore to San Diego round-trip?

    Our cheapest airline available from Baltimore to San Diego is Spirit Airlines. Our recent data shows that you can find tickets from as low as $260 on this airline. Additional options worth looking into are Frontier and Southwest, starting at $270 and $327 round-trip. You may be able to fly from Baltimore to San Diego for 36% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $73. Frontier flights start at $89 while deals on Southwest start at $164 one-way.

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

    Looking at all options, your cheapest flight can be booked for $138. While the most popular route (Baltimore/Washington - San Diego) can be booked for $190 on average our data indicates $369 when flying from Baltimore to San Diego.

  • Where are the most common layover locations when flying from Baltimore to San Diego?

    Baltimore to San Diego flights have a layover in Charlotte most of the time.

  • What are some popular things to do or see while on a layover in Charlotte?

    Charlotte travelers tend to visit Carowind, Mint Museum Uptown, and NASCAR Hall of Fame more than anywhere else. Travelers on a layover in Charlotte can visit Carowind, Mint Museum Uptown, and NASCAR Hall of Fame, by traveling 8.2 mi, 5.4 mi, and 5.7 mi, respectively after landing at Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $55 per day.

  • Where are the least popular layover locations for Baltimore to San Diego flights?

    The least popular layover on flights from Baltimore to San Diego is Atlanta.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore 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 Baltimore to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Baltimore to San Diego (average of $286). Flying from Baltimore to San Diego in March is currently the most expensive (average of $366). 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 Baltimore?

Book flights to Baltimore if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado

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Alternative routes for Baltimore to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Baltimore to San Diego

Discover the top 7 airlines that operate flights from Baltimore 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 avril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$104Average$227FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$139Average$239FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$211Average$347FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$436FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$442FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$257Average$479FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$328Average$539FlexibilityNo cancel feeOn-time63%

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