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Cheap flights from Baltimore to San Diego from $74

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 1/18. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
11:10 am - 3:15 pm
BWI
-
SAN
7h 05m1 stop
Southwest Logo
9:45 pm - 5:30 am
SAN
-
BWI
4h 45mnonstop
$257Southwest
Sat, Jan 10 - Sat, Jan 17
Frontier Logo
12:34 pm - 12:11 am
BWI
-
SAN
14h 37m1 stop
Frontier Logo
7:00 am - 12:21 am
SAN
-
BWI
38h 21m2 stops
$258Frontier
Fri, Jan 16 - Tue, Jan 20
Multiple Airlines Logo
12:34 pm - 12:11 am
BWI
-
SAN
14h 37m1 stop
Multiple Airlines Logo
2:56 pm - 10:27 am
SAN
-
BWI
40h 31m2 stops
$259Multiple Airlines
Fri, Jan 16 - Thu, Jan 22
Frontier Logo
9:20 am - 7:21 pm
BWI
-
SAN
13h 01m2 stops
Frontier Logo
9:45 am - 11:17 am
SAN
-
BWI
22h 32m1 stop
$261Frontier
Sun, Feb 8 - Wed, Feb 11
United Airlines Logo
4:10 pm - 8:42 pm
BWI
-
SAN
7h 32m1 stop
United Airlines Logo
6:15 am - 9:21 pm
SAN
-
BWI
12h 06m2 stops
$262United Airlines
Sat, Jan 10 - Sat, Jan 17
Frontier Logo
12:34 pm - 12:11 am
BWI
-
SAN
14h 37m1 stop
Frontier Logo
8:16 pm - 6:50 pm
SAN
-
BWI
19h 34m2 stops
$265Frontier
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
12:34 pm - 12:11 am
BWI
-
SAN
14h 37m1 stop
Multiple Airlines Logo
7:00 am - 10:27 am
SAN
-
BWI
24h 27m2 stops
$266Multiple Airlines
Fri, Jan 16 - Wed, Jan 21
United Airlines Logo
12:25 pm - 7:54 pm
BWI
-
SAN
10h 29m2 stops
United Airlines Logo
11:08 am - 11:15 pm
SAN
-
BWI
9h 07m2 stops
$267United Airlines
Sat, Jan 17 - Wed, Jan 21
Multiple Airlines Logo
12:49 pm - 11:36 pm
BWI
-
SAN
13h 47m1 stop
Multiple Airlines Logo
2:50 pm - 8:31 am
SAN
-
BWI
14h 41m2 stops
$268Multiple Airlines
Thu, Jan 8 - Fri, Jan 9
Frontier Logo
12:42 pm - 12:11 am
BWI
-
SAN
14h 29m2 stops
Frontier Logo
6:25 am - 7:50 pm
SAN
-
BWI
10h 25m1 stop
$270Frontier
Fri, Jan 16 - Mon, Jan 19

Southwest flights from Baltimore to San Diego

Our best Southwest deals on Baltimore to San Diego flight tickets
Southwest
Jan 10
BWI11:10 amBaltimore/Washington
7h 05m
1 stop
SAN3:15 pmSan Diego
Jan 17
SAN9:45 pmSan Diego
4h 45m
BWI5:30 amBaltimore/Washington
$257
Find similar
Southwest
Jan 17
BWI10:20 amBaltimore/Washington
8h 25m
1 stop
SAN3:45 pmSan Diego
Jan 21
SAN9:45 pmSan Diego
4h 45m
BWI5:30 amBaltimore/Washington
$267
Find similar
Southwest
Jan 13
BWI6:20 pmBaltimore/Washington
7h 45m
1 stop
SAN11:05 pmSan Diego
Jan 14
SAN7:25 amSan Diego
8h 55m
2 stops
BWI7:20 pmBaltimore/Washington
$272
Find similar

Frontier flights from Baltimore to San Diego

Our best Frontier deals on Baltimore to San Diego flight tickets
Frontier
Jan 16
BWI12:34 pmBaltimore/Washington
14h 37m
1 stop
SAN12:11 amSan Diego
Jan 20
SAN7:00 amSan Diego
38h 21m
2 stops
BWI12:21 amBaltimore/Washington
$258
Find similar
Frontier
Feb 8
BWI9:20 amBaltimore/Washington
13h 01m
2 stops
SAN7:21 pmSan Diego
Feb 11
SAN9:45 amSan Diego
22h 32m
1 stop
BWI11:17 amBaltimore/Washington
$261
Find similar
Frontier
Jan 16
BWI12:34 pmBaltimore/Washington
14h 37m
1 stop
SAN12:11 amSan Diego
Jan 23
SAN8:16 pmSan Diego
19h 34m
2 stops
BWI6:50 pmBaltimore/Washington
$265
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 21, 2025.
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

Sat 1/10

11:10 am-3:15 pm

1 stop7h 05m

San Diego

Sat 1/17

9:45 pm-5:30 am

Nonstop4h 45m

$257

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:34 pm-12:11 am

1 stop14h 37m

San Diego

Tue 1/20

7:00 am-12:21 am

2 stops38h 21m

$258

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:34 pm-12:11 am

1 stop14h 37m

San Diego

Thu 1/22

2:56 pm-10:27 am

2 stops40h 31m

$259

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 2/8

9:20 am-7:21 pm

2 stops13h 01m

San Diego

Wed 2/11

9:45 am-11:17 am

1 stop22h 32m

$261

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 1/10

4:10 pm-8:42 pm

1 stop7h 32m

San Diego

Sat 1/17

6:15 am-9:21 pm

2 stops12h 06m

$262

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:34 pm-12:11 am

1 stop14h 37m

San Diego

Fri 1/23

8:16 pm-6:50 pm

2 stops19h 34m

$265

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:34 pm-12:11 am

1 stop14h 37m

San Diego

Wed 1/21

7:00 am-10:27 am

2 stops24h 27m

$266

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 1/17

12:25 pm-7:54 pm

2 stops10h 29m

San Diego

Wed 1/21

11:08 am-11:15 pm

2 stops9h 07m

$267

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

San Diego

Fri 1/9

2:50 pm-8:31 am

2 stops14h 41m

$268

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:42 pm-12:11 am

2 stops14h 29m

San Diego

Mon 1/19

6:25 am-7:50 pm

1 stop10h 25m

$270

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 $382. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $469. 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 $493.

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 $421 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 $355 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 December 2025, prices for Baltimore to San Diego flights are approximately 24% cheaper 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

$223

Fastest flight time

5h 15m

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 $223. The best round-trip flight deal from Baltimore to San Diego found on momondo in the last 72 hours is $343.
The fastest flight from Baltimore to San Diego takes 5h 15m
Direct flights go from Baltimore to San Diego every day.
There is 1 airport in San Diego. From Baltimore there are direct flights to 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 15m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,079 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $137Free CancellationRating
6.3
8,190 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,496 reviews
Search Alaska Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,017 reviews
Search Delta flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,100 reviews
Search United Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,254 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 20 flights on this route every week with an average price of $443. Southwest is rated 8.0/10 by our users.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
Poway
National City
Borrego Springs
Imperial Beach
La Mesa
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.

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.
Start using Trips
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