HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$109+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SAN
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

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 Baltimore/Washington to San Diego are usually found in July or February, booked 16 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 April 22, 2026.

This United Airlines deal was found by Cheapflights users on 4/21. 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.
Mon 5/256:10 am
BWI
-
SAN
1 stop8h 11m
United Airlines
Thu 5/288:32 pm
SAN
-
BWI
1 stop7h 42m
United Airlines
Deal found 4/21$280
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Fri 5/156:35 pm
BWI
-
SAN
1 stop8h 24m
United Airlines
Mon 5/186:05 pm
SAN
-
BWI
1 stop7h 59m
United Airlines
Deal found 4/21$281
This Delta deal was found by Cheapflights users on 4/21. 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.
Fri 5/2910:28 am
BWI
-
SAN
1 stop9h 02m
Delta
Wed 6/106:15 am
SAN
-
BWI
1 stop7h 30m
Delta
Deal found 4/21$282
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 6/46:10 pm
BWI
-
SAN
1 stop27h 20m
Frontier
Tue 6/98:00 am
SAN
-
BWI
1 stop28h 52m
Frontier
Deal found 4/17$283
This Frontier deal was found by Cheapflights users on 4/17. 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.
Mon 5/410:58 am
BWI
-
SAN
1 stop15h 03m
Frontier
Thu 5/76:25 am
SAN
-
BWI
1 stop7h 50m
Frontier
Deal found 4/17$286
This Southwest deal was found by Cheapflights users on 4/20. 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.
Tue 8/185:20 pm
BWI
-
SAN
Nonstop5h 15m
Southwest
Tue 9/110:40 pm
SAN
-
BWI
Nonstop4h 55m
Southwest
Deal found 4/20$287
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Thu 5/1412:47 pm
BWI
-
SAN
1 stop8h 06m
United Airlines
Tue 5/196:15 am
SAN
-
BWI
1 stop7h 18m
United Airlines
Deal found 4/21$290
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:10 pm
BWI
-
SAN
1 stop7h 10m
Southwest
Tue 5/266:20 am
SAN
-
BWI
Nonstop5h 00m
Southwest
Deal found 4/21$291
This Southwest deal was found by Cheapflights users on 4/19. 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.
Sat 5/234:15 pm
BWI
-
SAN
1 stop8h 30m
Southwest
Tue 5/266:20 am
SAN
-
BWI
Nonstop5h 00m
Southwest
Deal found 4/19$292
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:16 pm
BWI
-
SAN
1 stop7h 49m
American Airlines
Tue 5/199:45 pm
SAN
-
BWI
1 stop8h 11m
American Airlines
Deal found 4/20$293
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 5/1211:00 am
BWI
-
SAN
1 stop7h 33m
United Airlines
Sat 5/168:45 pm
SAN
-
BWI
2 stops10h 18m
United Airlines
Deal found 4/21$294
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:17 pm
BWI
-
SAN
1 stop7h 39m
American Airlines
Tue 5/199:45 pm
SAN
-
BWI
1 stop8h 11m
American Airlines
Deal found 4/20$295

Find 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 April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$280
(United Airlines)

One-way from

$109
(Kiwi.com)

Popular in

June

Cheapest in

July

Average price

$393
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. 4% potential increase in price ($18 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 April 2026
Search Deals

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 April 22, 2026.
Use the filters below to find and compare flights from Baltimore 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

Fri 8/28

7:00 am-11:35 am

1 stop7h 35m

San Diego

Mon 8/31

6:28 pm-7:13 am

1 stop9h 45m

$286
Quickest round-trip

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 5/20

6:50 am-11:20 am

1 stop7h 30m

San Diego

Sat 5/23

9:40 pm-5:30 am

Nonstop4h 50m

$317

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 6/3

10:28 am-4:30 pm

1 stop9h 02m

San Diego

Sun 6/7

10:17 pm-8:46 am

1 stop7h 29m

$317

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 5/16

5:10 pm-11:25 pm

1 stop9h 15m

San Diego

Sat 5/23

12:00 pm-10:00 pm

1 stop7h 00m

$317

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 5/20

6:50 am-11:20 am

1 stop7h 30m

San Diego

Sun 5/24

7:50 pm-5:40 am

1 stop6h 50m

$317

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 10/6

10:45 am-3:30 pm

1 stop7h 45m

San Diego

Tue 10/6

7:41 pm-7:20 am

1 stop8h 39m

$332

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 8/12

6:00 am-10:46 am

1 stop7h 46m

San Diego

Wed 8/19

10:30 pm-8:31 am

1 stop7h 01m

$337

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 10/9

6:10 pm-11:03 pm

1 stop7h 53m

San Diego

Mon 10/12

10:30 pm-8:37 am

1 stop7h 07m

$337

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 6/8

6:19 am-10:43 am

1 stop7h 24m

San Diego

Sat 6/13

5:01 pm-5:50 am

1 stop9h 49m

$337

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 7/21

5:32 am-9:26 am

1 stop6h 54m

San Diego

Sat 7/25

10:30 pm-9:24 am

1 stop7h 54m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 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 FlightHub the most. FlightHub 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.

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 17, 2026.

Booking 16 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, July is the cheapest month in which you can book a flight from Baltimore to San Diego (average of $354). Flying from Baltimore to San Diego in June is currently the most expensive (average of $489). 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 April 22, 2026.

It’s typically best to fly out from Baltimore to San Diego in the evening. Doing so could potentially save you 41% 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 April 18, 2026.

Travelers seeking maximum savings on their Baltimore to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday 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 Baltimore to San Diego?

The best insider tips for Baltimore to San Diego flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Diego trip
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

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 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

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 April 22, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Baltimore to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,330 reviews
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,430 reviews
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,625 reviews
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,647 reviews
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,982 reviews
Southwest
8.0
Very good
4,330 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 3 flights from Baltimore/Washington to San Diego, all of which are around 5h 15m for a nonstop flight. You can also purchase a plane ticket from 8 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, 4 users have taken a look at flights from Baltimore/Washington to San Diego.

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

    Departing from Baltimore to San Diego will take you 7h 30m. The distance from Baltimore to San Diego is about 2289 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $89 on this airline. Additional options worth looking into are Frontier and JetBlue, starting at $117 and $192 round-trip. You may be able to fly from Baltimore to San Diego for 77% 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 $83 while deals on American Airlines start at $128 one-way.

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

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Baltimore/Washington - San Diego) can be booked for $234 on average, our data indicates $375 when flying from Baltimore to San Diego.

  • 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, July is the cheapest month in which you can book a flight from Baltimore to San Diego (average of $354). Flying from Baltimore to San Diego in June is currently the most expensive (average of $489). 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
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Las Vegas flights
Reagan-National to Los Angeles flights
Baltimore to Los Angeles flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
Dulles Intl to San Francisco flights
Dulles Intl to Los Angeles flights
Philadelphia to Las Vegas flights
Reagan-National to San Francisco flights
Baltimore to San Francisco flights
Philadelphia to San Francisco flights
Dulles Intl to San Diego flights
Philadelphia to Los Angeles flights
Dulles Intl to Ontario flights
Reagan-National to San Diego flights
Baltimore to Ontario flights
Reagan-National to Ontario flights
Dulles Intl to San Jose flights
Philadelphia to San Diego flights
Baltimore to San Jose flights
Dulles Intl to Sacramento flights
Philadelphia to Ontario flights
Reagan-National to San Jose flights
Dulles Intl to Oakland flights
Dulles Intl to Reno flights
Baltimore to Oakland flights
Reagan-National to Santa Ana flights
Baltimore to Santa Ana flights
Baltimore to Sacramento flights
Reagan-National to Oakland flights
Reagan-National to Sacramento flights
Dulles Intl to Burbank flights
Baltimore to Reno flights
Philadelphia to Santa Ana flights
Reagan-National to Reno flights
Philadelphia to Reno flights
Baltimore to Burbank flights
Philadelphia to San Jose flights
Dulles Intl to Palm Springs flights
Dulles Intl to Long Beach flights
Dulles Intl to Fresno flights
Dulles Intl to Santa Barbara flights
Philadelphia to Oakland flights
Baltimore to Long Beach flights
Philadelphia to Sacramento flights
Philadelphia to Burbank flights
Reagan-National to Burbank flights
Reagan-National to Monterey flights

Top 8 airlines flying from Baltimore to San Diego

Discover the top 8 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 April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$216FlexibilityNo cancel feeOn-time65%
FrontierCheapest$117Average$258FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$192Average$381FlexibilityNo cancel feeOn-time62%
DeltaCheapest$225Average$357FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$393FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$260Average$450FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$277Average$347FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.