What’s the fastest layover option from Baltimore to San Diego?

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 50m.

What’s the top layover airport for flights from Baltimore to San Diego?

Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Baltimore to San Diego on Cheapflights.

Which airport typically offers the quickest layover for flights from Baltimore to San Diego?

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 23m.

What’s the cheapest layover airport for flights from Baltimore to San Diego?

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $275.

How popular is this Baltimore to San Diego flight route?

Within the past month, 7 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 6h 05m. 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 $129 on this airline. Additional options worth looking into are Frontier and Alaska Airlines, starting at $130 and $211 round-trip. You may be able to fly from Baltimore to San Diego for 70% less than the average price by searching for these airlines.

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.

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).

What are the cheapest flights from Baltimore to San Diego?

Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Baltimore/Washington - San Diego) can be booked for $218 on average, our data indicates $318 when flying from Baltimore to San Diego.

What are the most popular airlines that fly from Baltimore to San Diego?

The most popular airlines flying from Baltimore to San Diego are Southwest, Spirit Airlines and American Airlines. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Baltimore-San Diego flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Baltimore-San Diego flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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.

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 35m 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.

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.

$78+ Cheap Flights from Baltimore to San Diego

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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 May, booked 79 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap flight deals from Baltimore to San Diego

Most accurate provider	Justfly.com 3 stars
Most trusted provider	Justfly.com 3 stars
Round-trip from	$218 (Kiwi.com)
One-way from	$78 (Trip.com)
Popular in	June
Cheapest in	July
Average price	$392

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

High demand for flights, 4% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 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 October 28, 2025.

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Mon 11/175:47 pmSAN - BWI

2 stops21h 42mMultiple Airlines

Deal found 10/26

$218

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Tue 11/181:37 pmSAN - BWI

2 stops20h 18mMultiple Airlines

Deal found 10/27

$222

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Sat 11/156:41 amSAN - BWI

2 stops10h 50mMultiple Airlines

Deal found 10/27

$230

Tue 11/112:00 pmBWI - SAN

2 stops24h 52mMultiple Airlines

Thu 11/133:59 pmSAN - BWI

1 stop9h 56mMultiple Airlines

Deal found 10/27

$235

Thu 11/2711:14 amBWI - SAN

2 stops23h 40mMultiple Airlines

Thu 12/46:25 amSAN - BWI

1 stop8h 36mMultiple Airlines

Deal found 10/28

$237

Tue 11/112:00 pmBWI - SAN

2 stops24h 52mMultiple Airlines

Mon 11/176:25 amSAN - BWI

1 stop7h 44mMultiple Airlines

Deal found 10/27

$246

Thu 12/410:27 amBWI - SAN

1 stop16h 24mMultiple Airlines

Mon 12/86:25 amSAN - BWI

1 stop8h 36mMultiple Airlines

Deal found 10/26

$253

Mon 11/104:55 pmBWI - SAN

2 stops22h 12mMultiple Airlines

Fri 11/148:30 amSAN - BWI

1 stop17h 54mMultiple Airlines

Deal found 10/27

$256

Mon 11/106:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Mon 11/171:20 pmSAN - BWI

2 stops18h 00mMultiple Airlines

Deal found 10/27

$261

Best flights from Baltimore to San Diego
Discover carefully curated flight deals from Baltimore to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Thu 1/296:20 amBWI - SAN

Nonstop6h 05mSouthwest

Mon 2/27:05 amSAN - BWI

Nonstop4h 50mSouthwest

Deal found 10/27

$277

Thu 12/46:00 amBWI - SAN

1 stop10h 02mDelta

Tue 12/98:00 amSAN - BWI

1 stop8h 32mDelta

Deal found 10/26

$282

Wed 1/143:52 pmBWI - SAN

1 stop9h 04mUnited Airlines

Sun 1/1810:26 amSAN - BWI

1 stop8h 59mUnited Airlines

Deal found 10/27

$297

Tue 11/256:20 amBWI - SAN

Nonstop5h 45mSouthwest

Tue 12/29:45 pmSAN - BWI

Nonstop4h 50mSouthwest

Deal found 10/26

$277

Sat 12/67:25 pmBWI - SAN

Nonstop5h 50mSouthwest

Tue 12/99:45 pmSAN - BWI

Nonstop4h 50mSouthwest

Deal found 10/27

$277

Sat 12/61:50 pmBWI - SAN

1 stop7h 05mSouthwest

Sat 12/137:45 amSAN - BWI

2 stops8h 35mSouthwest

Deal found 10/27

$278

Fri 1/236:20 pmBWI - SAN

1 stop7h 45mSouthwest

Tue 1/2712:00 pmSAN - BWI

Nonstop4h 45mSouthwest

Deal found 10/26

$297

Wed 1/146:20 amBWI - SAN

Nonstop6h 05mSouthwest

Sun 1/187:25 amSAN - BWI

1 stop7h 10mSouthwest

Deal found 10/26

$297

Fri 1/236:00 pmBWI - SAN

Nonstop6h 00mSouthwest

Mon 1/267:05 amSAN - BWI

Nonstop4h 50mSouthwest

Deal found 10/26

$297

Thu 12/43:50 pmBWI - SAN

1 stop8h 15mSouthwest

Sun 12/71:35 pmSAN - BWI

Nonstop4h 55mSouthwest

Deal found 10/27

$307

Wed 12/37:00 amBWI - SAN

Nonstop5h 45mSouthwest

Sun 12/71:35 pmSAN - BWI

Nonstop4h 55mSouthwest

Deal found 10/27

$312

Last-minute flights from Baltimore to San Diego
Discover last-minute flight deals from Baltimore to San Diego. Data last updated October 28, 2025 and is based on user searches.

Mon 11/104:55 pmBWI - SAN

2 stops22h 12mMultiple Airlines

Fri 11/148:30 amSAN - BWI

1 stop17h 54mMultiple Airlines

Deal found 10/27

$256

Mon 11/106:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Mon 11/171:20 pmSAN - BWI

2 stops18h 00mMultiple Airlines

Deal found 10/27

$261

Mon 11/106:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Sat 11/156:41 amSAN - BWI

2 stops10h 50mMultiple Airlines

Deal found 10/27

$264

Tue 11/112:00 pmBWI - SAN

2 stops24h 52mMultiple Airlines

Thu 11/133:59 pmSAN - BWI

1 stop9h 56mMultiple Airlines

Deal found 10/27

$235

Tue 11/112:00 pmBWI - SAN

2 stops24h 52mMultiple Airlines

Mon 11/176:25 amSAN - BWI

1 stop7h 44mMultiple Airlines

Deal found 10/27

$246

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Mon 11/175:47 pmSAN - BWI

2 stops21h 42mMultiple Airlines

Deal found 10/26

$218

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Tue 11/181:37 pmSAN - BWI

2 stops20h 18mMultiple Airlines

Deal found 10/27

$222

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Sat 11/156:41 amSAN - BWI

2 stops10h 50mMultiple Airlines

Deal found 10/27

$230

Thu 11/136:00 amBWI - SAN

1 stop9h 35mMultiple Airlines

Thu 11/133:59 pmSAN - BWI

1 stop9h 56mMultiple Airlines

Deal found 10/27

$253

One-way flights from Baltimore to San Diego
Search for one-way flight options from Baltimore to San Diego. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Sun 1/1812:23 pmBWI - SAN

1 stop14h 38mFrontier

Deal found 10/26

$78

Mon 1/57:00 amBWI - SAN

2 stops29h 57mFrontier

Deal found 10/27

$80

Mon 1/126:42 pmBWI - SAN

2 stops31h 16mFrontier

Deal found 10/25

$97

Sun 1/115:35 amBWI - SAN

2 stops16h 40mFrontier

Deal found 10/26

$99

Mon 12/156:51 pmBWI - SAN

2 stops30h 55mFrontier

Deal found 10/27

$100

Wed 1/219:37 pmBWI - SAN

2 stops40h 53mMultiple Airlines

Deal found 10/27

$102

Sun 12/79:13 amBWI - SAN

2 stops37h 02mFrontier

Deal found 10/27

$105

Sun 12/149:13 amBWI - SAN

2 stops30h 25mFrontier

Deal found 10/27

$106

Sat 12/68:30 pmBWI - SAN

2 stops44h 40mMultiple Airlines

Deal found 10/27

$107

Tue 11/1110:00 amBWI - SAN

2 stops28h 52mFrontier

Deal found 10/27

$109

Thu 11/2711:14 amBWI - SAN

2 stops23h 40mFrontier

Deal found 10/27

$110

Cheapflights Fare Finder

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

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/29

6:20 am-9:25 am

Nonstop6h 05m

San Diego

Mon 2/2

7:05 am-2:55 pm

Nonstop4h 50m

$277

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 11/25

6:20 am-9:05 am

Nonstop5h 45m

San Diego

Tue 12/2

9:45 pm-5:35 am

Nonstop4h 50m

$277

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 12/6

7:25 pm-10:15 pm

Nonstop5h 50m

San Diego

Tue 12/9

9:45 pm-5:35 am

Nonstop4h 50m

$277

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 12/6

1:50 pm-5:55 pm

1 stop7h 05m

San Diego

Sat 12/13

7:45 am-7:20 pm

2 stops8h 35m

$278

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 12/4

6:00 am-1:02 pm

1 stop10h 02m

San Diego

Tue 12/9

8:00 am-7:32 pm

1 stop8h 32m

$282

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 1/14

3:52 pm-9:56 pm

1 stop9h 04m

San Diego

Sun 1/18

10:26 am-10:25 pm

1 stop8h 59m

$297

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/23

6:20 pm-11:05 pm

1 stop7h 45m

San Diego

Tue 1/27

12:00 pm-7:45 pm

Nonstop4h 45m

$297

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 1/14

6:20 am-9:25 am

Nonstop6h 05m

San Diego

Sun 1/18

7:25 am-5:35 pm

1 stop7h 10m

$297

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/23

6:00 pm-9:00 pm

Nonstop6h 00m

San Diego

Mon 1/26

7:05 am-2:55 pm

Nonstop4h 50m

$297

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 12/4

3:50 pm-9:05 pm

1 stop8h 15m

San Diego

Sun 12/7

1:35 pm-9:30 pm

Nonstop4h 55m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 22 results

Compare providers for flights from Baltimore to San Diego

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 October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy2 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Baltimore-San Diego flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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

Prices

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

Booking 79 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 $109). Flying from Baltimore to San Diego in December is currently the most expensive (average of $208). 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?

It’s typically best to fly out from Baltimore to San Diego in the evening. Doing so could potentially save you 34% 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?

Travelers seeking maximum savings on their Baltimore to San Diego flight should consider departing on Monday 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.

The best insider tips for Baltimore to San Diego flights

Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Diego trip

Airports

BWI

For early morning flights, arrive 20-30 minutes early to navigate busy security lines efficiently.

SAN

Use the free San Diego Flyer shuttle for convenient transport between SAN and Old Town Transit Center.

Our travel experts

Blane Bachelor

Expert on SAN

Emily Zemler

Expert on BWI

Reviews of airlines servicing San Diego

See what other customers who have flown with Southwest, Delta, and United 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

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,236 reviews

Southwest

8.0

Very good

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

7,996 reviews

Southwest

8.0

Very good

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,997 reviews

Southwest

8.0

Very good

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,033 reviews

Southwest

8.0

Very good

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Spirit Airlines

6.3

Okay

8,110 reviews

Southwest

8.0

Very good

4,236 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

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 35m 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, 7 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 6h 05m. 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 $129 on this airline. Additional options worth looking into are Frontier and Alaska Airlines, starting at $130 and $211 round-trip. You may be able to fly from Baltimore to San Diego for 70% less than the average price by searching for these airlines.
What are the cheapest flights from Baltimore to San Diego?
Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Baltimore/Washington - San Diego) can be booked for $218 on average, our data indicates $318 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, August is the cheapest month in which you can book a flight from Baltimore to San Diego (average of $109). Flying from Baltimore to San Diego in December is currently the most expensive (average of $208). 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

El Cajon

Chula Vista

Coronado

La Mesa

Poway

Lemon Grove

Imperial Beach

National City

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Baltimore to San Diego

Dulles Intl to Las Vegas flights

Reagan-National to Los Angeles flights

Reagan-National to Las Vegas flights

Dulles Intl to Los Angeles flights

Baltimore to Las Vegas flights

Baltimore to Los Angeles flights

Reagan-National to San Francisco flights

Philadelphia to Las Vegas flights

Dulles Intl to San Francisco flights

Philadelphia to Los Angeles flights

Baltimore to San Francisco flights

Dulles Intl to San Diego flights

Philadelphia to San Francisco flights

Reagan-National to San Diego flights

Baltimore to Ontario flights

Philadelphia to San Diego flights

Philadelphia to Ontario flights

Reagan-National to Ontario flights

Dulles Intl to Ontario flights

Dulles Intl to San Jose flights

Dulles Intl to Sacramento flights

Reagan-National to Santa Ana flights

Dulles Intl to Santa Ana flights

Baltimore to San Jose flights

Baltimore to Santa Ana flights

Reagan-National to San Jose flights

Baltimore to Sacramento flights

Philadelphia to Santa Ana flights

Baltimore to Burbank flights

Baltimore to Oakland flights

Reagan-National to Sacramento flights

Dulles Intl to Palm Springs flights

Dulles Intl to Oakland flights

Baltimore to Palm Springs flights

Philadelphia to Palm Springs flights

Dulles Intl to Reno flights

Reagan-National to Oakland flights

Reagan-National to Reno flights

Baltimore to Reno flights

Reagan-National to Palm Springs flights

Philadelphia to San Jose flights

Philadelphia to Burbank flights

Dulles Intl to Fresno flights

Philadelphia to Reno flights

Baltimore to Monterey flights

Dulles Intl to Santa Barbara flights

Reagan-National to Burbank flights

Dulles Intl to Burbank flights

Reagan-National to Fresno flights

Complete your trip

San Diego car rentals

San Diego Airport car rentals

Ontario Airport car rentals

Palm Springs Airport car rentals

Long Beach Municipal Airport car rentals

San Diego Carlsbad-Palomar Airport car rentals

Los Angeles car rentals

San Francisco car rentals

San Jose car rentals

Fresno car rentals

Sacramento car rentals

Ontario car rentals

Other flights to San Diego

Top 7 airlines flying from Baltimore to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$130	Average$259	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$131	Average$301	FlexibilityNo cancel fee	On-time65%
Alaska Airlines	Cheapest$211	Average$348	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$260	Average$418	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$260	Average$474	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$276	Average$451	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$278	Average$468	FlexibilityNo cancel fee	On-time63%

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.

$78+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Baltimore to San Diego with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Baltimore/Washington to San Diego are usually found in July or May, booked 79 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap flight deals from Baltimore to San Diego

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Baltimore to San Diego

Cheapest flights from Baltimore to San DiegoExplore 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 October 28, 2025.

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 October 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to San Diego that are best for you.

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 October.

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.

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?

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

What is the cheapest time of day to fly from BWI to SAN?

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

What’s the top layover airport for flights from Baltimore to San Diego?

What’s the fastest layover option from Baltimore to San Diego?

What’s the fastest layover option from Baltimore to San Diego?

Which airport typically offers the quickest layover for flights from Baltimore to San Diego?

The best insider tips for Baltimore to San Diego flights

Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Diego trip

Airports

BWI

SAN

Our travel experts

Reviews of airlines servicing San Diego

See what other customers who have flown with Southwest, Delta, and United 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.

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?

How popular is this Baltimore to San Diego flight route?

How long is the flight from Baltimore to San Diego?

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

What are the cheapest flights from Baltimore to San Diego?

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

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

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

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

Traveling to a place near San Diego?

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.

Top 7 airlines flying from Baltimore to San Diego

100% Free

Book with Flexibility

Travel Smart

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 October 28, 2025.