Which layover airport offers the lowest fares from Baltimore to San Diego?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $314.

How many flights depart from Baltimore to San Diego on average per week?

As of November 2025, 29 flights take off from Baltimore and land in San Diego each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

What is the cheapest airline that flies from Baltimore/Washington to San Diego?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Baltimore/Washington to San Diego

Which layover airport has the shortest travel time from Baltimore to San Diego?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 7h 55m.

Which airport is the most popular layover for flights between Baltimore and San Diego?

Las Vegas (LAS) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Baltimore to San Diego on average per day?

The number of flights available between Baltimore and San Diego is 4 per day as of November 2025. The most frequent departure time is 4:00PM, with 51% of daily flights leaving in the afternoon.

What airlines fly to San Diego?

United Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to San Diego from Baltimore according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Baltimore to San Diego?

Houston (IAH) has the shortest average layover time for this route: 1h 13m.

When did momondo last update prices for flights from Baltimore/Washington Airport to San Diego Airport?

Prices for flights from Baltimore/Washington Airport to San Diego Airport refresh daily.

How many operators does momondo search for flights from Baltimore/Washington Airport to San Diego Airport?

As of November 2025, there are 7 operators available to choose from for flights from Baltimore/Washington Airport to San Diego Airport.

How old do you have to be to fly from Baltimore/Washington Airport to San Diego Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$71 Cheap Flights from Baltimore to San Diego in 2025/26

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9:34 am - 1:15 pmBWI-SAN

30h 41m2 stops

6:30 am - 9:05 pmSAN-BWI

11h 35m1 stop

$198Multiple Airlines

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Thu, Dec 25 - Sat, Jan 10

7:00 am - 3:06 pmBWI-SAN

11h 06m1 stop

6:45 am - 7:43 pmSAN-BWI

9h 58m1 stop

$202Multiple Airlines

Find Deal

Tue, Dec 9 - Fri, Dec 12

6:00 am - 11:59 pmBWI-SAN

20h 59m2 stops

6:30 am - 9:05 pmSAN-BWI

11h 35m1 stop

$210Frontier

Find Deal

Sun, Jan 4 - Sat, Jan 10

12:23 pm - 12:01 amBWI-SAN

14h 38m1 stop

6:25 am - 7:47 amSAN-BWI

22h 22m2 stops

$212Frontier

Find Deal

Sun, Jan 18 - Sun, Jan 25

7:19 am - 11:52 amBWI-SAN

7h 33m1 stop

9:37 am - 9:17 pmSAN-BWI

8h 40m1 stop

$218American Airlines

Find Deal

Mon, Dec 8 - Sat, Dec 13

7:19 am - 11:52 amBWI-SAN

7h 33m1 stop

9:37 am - 10:12 pmSAN-BWI

9h 35m2 stops

$223American Airlines

Find Deal

Mon, Dec 8 - Sat, Dec 13

7:04 am - 4:31 pmBWI-SAN

12h 27m1 stop

4:01 pm - 6:14 pmSAN-BWI

23h 13m1 stop

$256Alaska Airlines

Find Deal

Tue, Jan 6 - Wed, Feb 4

9:45 am - 1:45 pmBWI-SAN

7h 00m1 stop

6:50 am - 2:50 pmSAN-BWI

5h 00mnonstop

$257Southwest

Find Deal

Wed, Dec 3 - Tue, Dec 9

8:20 am - 2:45 pmBWI-SAN

9h 25m2 stops

7:40 pm - 5:45 amSAN-BWI

7h 05m1 stop

$262Southwest

Find Deal

Sat, Dec 6 - Sat, Dec 13

7:04 am - 4:31 pmBWI-SAN

12h 27m1 stop

6:15 am - 6:14 pmSAN-BWI

8h 59m1 stop

$276Alaska Airlines

Find Deal

Tue, Jan 6 - Fri, Jan 9

American Airlines flights from Baltimore to San Diego

Our best American Airlines deals on Baltimore to San Diego flight tickets

American Airlines

Dec 8

BWI7:19 amBaltimore/Washington

7h 33m

1 stop

SAN11:52 amSan Diego

Dec 13

SAN9:37 amSan Diego

8h 40m

1 stop

BWI9:17 pmBaltimore/Washington

$218

Find similar

American Airlines

Dec 8

BWI7:19 amBaltimore/Washington

7h 33m

1 stop

SAN11:52 amSan Diego

Dec 13

SAN9:37 amSan Diego

9h 35m

2 stops

BWI10:12 pmBaltimore/Washington

$223

Find similar

American Airlines

Nov 15

BWI11:09 amBaltimore/Washington

10h 15m

2 stops

SAN6:24 pmSan Diego

Nov 19

SAN10:09 amSan Diego

8h 56m

2 stops

BWI10:05 pmBaltimore/Washington

$528

Find similar

Frontier flights from Baltimore to San Diego

Our best Frontier deals on Baltimore to San Diego flight tickets

Frontier

Jan 4

BWI6:00 amBaltimore/Washington

20h 59m

2 stops

SAN11:59 pmSan Diego

Jan 10

SAN6:30 amSan Diego

11h 35m

1 stop

BWI9:05 pmBaltimore/Washington

$210

Find similar

Frontier

Jan 18

BWI12:23 pmBaltimore/Washington

14h 38m

1 stop

SAN12:01 amSan Diego

Jan 25

SAN6:25 amSan Diego

22h 22m

2 stops

BWI7:47 amBaltimore/Washington

$212

Find similar

Frontier

Nov 24

BWI6:51 pmBaltimore/Washington

8h 08m

1 stop

SAN11:59 pmSan Diego

Nov 27

SAN6:35 amSan Diego

8h 21m

1 stop

BWI5:56 pmBaltimore/Washington

$219

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 12/25

9:34 am-1:15 pm

2 stops30h 41m

San Diego

Sat 1/10

6:30 am-9:05 pm

1 stop11h 35m

$198

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 12/9

7:00 am-3:06 pm

1 stop11h 06m

San Diego

Fri 12/12

6:45 am-7:43 pm

1 stop9h 58m

$202

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 1/4

6:00 am-11:59 pm

2 stops20h 59m

San Diego

Sat 1/10

6:30 am-9:05 pm

1 stop11h 35m

$210

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 1/18

12:23 pm-12:01 am

1 stop14h 38m

San Diego

Sun 1/25

6:25 am-7:47 am

2 stops22h 22m

$212

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 12/8

7:19 am-11:52 am

1 stop7h 33m

San Diego

Sat 12/13

9:37 am-9:17 pm

1 stop8h 40m

$218

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 12/8

7:19 am-11:52 am

1 stop7h 33m

San Diego

Sat 12/13

9:37 am-10:12 pm

2 stops9h 35m

$223

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 1/6

7:04 am-4:31 pm

1 stop12h 27m

San Diego

Wed 2/4

4:01 pm-6:14 pm

1 stop23h 13m

$256

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 12/3

9:45 am-1:45 pm

1 stop7h 00m

San Diego

Tue 12/9

6:50 am-2:50 pm

Nonstop5h 00m

$257

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 12/6

8:20 am-2:45 pm

2 stops9h 25m

San Diego

Sat 12/13

7:40 pm-5:45 am

1 stop7h 05m

$262

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 1/6

7:04 am-4:31 pm

1 stop12h 27m

San Diego

Fri 1/9

6:15 am-6:14 pm

1 stop8h 59m

$276

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How to get the cheapest flight ticket from Baltimore to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of July, then departing from Baltimore during the month May is also very affordable. Most momondo users find prices during this month for around $374.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Baltimore to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $392. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $473. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $339. Flights at noon are often more expensive with an average ticket price of $503.

What is the cheapest Baltimore/Washington to San Diego flight route?

Fly from Baltimore/Washington to San Diego for the best Baltimore/Washington - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $437 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Baltimore for as low as $367 on momondo.

What cabin class options are available on Baltimore/Washington to San Diego flights?

There is only 1 cabin class available to choose from on Baltimore/Washington to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Baltimore to San Diego flights?

No. A direct flight is the cheapest option for a flight between Baltimore to San Diego.

How have Baltimore to San Diego flight prices changed over time?

As of November 2025, prices for Baltimore to San Diego flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Baltimore to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Baltimore to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Baltimore to San Diego (BWI to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to San Diego

Best Price Found	$160
Fastest flight time	5h 40m
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Baltimore in the past 72 hours is $160. The best round-trip flight deal from Baltimore to San Diego found on momondo in the last 72 hours is $317.

The fastest flight from Baltimore to San Diego takes 5h 40m

Direct flights go from Baltimore to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

How far is Baltimore/Washington to San Diego by plane?
The straight-line distance from Baltimore/Washington to San Diego is 2290.1 mi. Typically, this will take 5h 45m by plane in normal conditions.
When did momondo last update prices for flights from Baltimore/Washington Airport to San Diego Airport?
Prices for flights from Baltimore/Washington Airport to San Diego Airport refresh daily.
How many operators does momondo search for flights from Baltimore/Washington Airport to San Diego Airport?
As of November 2025, there are 7 operators available to choose from for flights from Baltimore/Washington Airport to San Diego Airport.
How old do you have to be to fly from Baltimore/Washington Airport to San Diego Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Baltimore to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Baltimore to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets), representing 26.54% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 24.29%, Boeing 737 MAX 9 at 17.06%, and Boeing 737-900 at 13.86%.
What is the most popular airline from Baltimore to San Diego?
momondo data reveals that the most frequently booked airline on the route from Baltimore to San Diego is Southwest, representing 60% of all bookings. The subsequent popular airlines are Spirit Airlines at 11%, American Airlines at 8%, and Delta at 7%.

Best airlines flying from Baltimore to San Diego

Compare and see reviews for airlines that fly from Baltimore to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $129	Free Cancellation	Rating 6.3 8,114 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $130	Free Cancellation	Rating 5.8 3,116 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $211	Free Cancellation	Rating 8.0 11,241 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $236	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
Delta	PriceFrom $260	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
United Airlines	PriceFrom $276	Free Cancellation	Rating 7.4 9,003 reviews	Search United Airlines flights
Southwest	PriceFrom $277	Free Cancellation	Rating 8.0 4,240 reviews	Search Southwest flights

Southwest Flights From Baltimore to San Diego
The lowest priced Southwest flight from Baltimore to San Diego from the last 72 hours was $277. Generally, Southwest has 26 flights on this route every week with an average price of $461. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Baltimore to San Diego
United Airlines (7.4/10 from 9,003 reviews) operates around 3 flights from Baltimore to San Diego in any given week. The average United Airlines airfare for this route is around $451, with deals from around $276 rare but found on momondo. Referenced prices are for round-trip Baltimore to San Diego flight searches in the last 72 hours.

Coronado

Chula Vista

El Cajon

Julian

National City

Imperial Beach

La Mesa

Poway

Borrego Springs

San Ysidro

Lemon Grove

Alpine

Santee

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Baltimore to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from Baltimore to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Baltimore with this policy.

How can momondo help me find flights from Baltimore to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Baltimore. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Baltimore to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Baltimore and alert you when they change.

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Cheap flights from Baltimore to San Diego from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to San Diego departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Our best American Airlines deals on Baltimore to San Diego flight tickets

Frontier flights from Baltimore to San Diego

Our best Frontier deals on Baltimore to San Diego flight tickets

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

See travel insights to San Diego from

How to get the cheapest flight ticket from Baltimore to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of July, then departing from Baltimore during the month May is also very affordable. Most momondo users find prices during this month for around $374.

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $339. Flights at noon are often more expensive with an average ticket price of $503.

What is the cheapest Baltimore/Washington to San Diego flight route?

Fly from Baltimore/Washington to San Diego for the best Baltimore/Washington - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Baltimore/Washington to San Diego flights?

There is only 1 cabin class available to choose from on Baltimore/Washington to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Baltimore to San Diego flights?

No. A direct flight is the cheapest option for a flight between Baltimore to San Diego.

How have Baltimore to San Diego flight prices changed over time?

As of November 2025, prices for Baltimore to San Diego flights are approximately 46% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Baltimore/Washington to San Diego?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Baltimore/Washington to San Diego

What airlines fly to San Diego?

Which airport is the most popular layover for flights between Baltimore and San Diego?

Las Vegas (LAS) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Baltimore to San Diego?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $314.

Which layover airport has the shortest travel time from Baltimore to San Diego?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 7h 55m.

Which layover airport has the shortest connection time from Baltimore to San Diego?

Houston (IAH) has the shortest average layover time for this route: 1h 13m.

How many flights depart from Baltimore to San Diego on average per day?

The number of flights available between Baltimore and San Diego is 4 per day as of November 2025. The most frequent departure time is 4:00PM, with 51% of daily flights leaving in the afternoon.

How many flights depart from Baltimore to San Diego on average per week?

As of November 2025, 29 flights take off from Baltimore and land in San Diego each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

When to book flights from Baltimore to San Diego

Cheap Baltimore to San Diego (BWI to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to San Diego

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

How far is Baltimore/Washington to San Diego by plane?

When did momondo last update prices for flights from Baltimore/Washington Airport to San Diego Airport?

How many operators does momondo search for flights from Baltimore/Washington Airport to San Diego Airport?

How old do you have to be to fly from Baltimore/Washington Airport to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from Baltimore to San Diego?

What is the most popular airline from Baltimore to San Diego?

Best airlines flying from Baltimore to San Diego

Compare and see reviews for airlines that fly from Baltimore to San Diego with momondo

Southwest Flights From Baltimore to San Diego

United Airlines Flights From Baltimore to San Diego

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to San Diego?

Can I find flights from Baltimore to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from Baltimore to San Diego?

I’m not ready to book a flight from Baltimore to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down