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Cheap flights from Baltimore to San Diego from $89

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 2/4. 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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Find the cheapest flights from Baltimore to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
4:15 pm - 7:00 pm
BWI
-
SAN
5h 45mnonstop
Southwest Logo
9:40 pm - 5:30 am
SAN
-
BWI
4h 50mnonstop
$265Southwest
Tue, Mar 31 - Mon, Apr 6
Southwest Logo
6:45 pm - 9:40 pm
BWI
-
SAN
5h 55mnonstop
Southwest Logo
7:05 pm - 5:45 am
SAN
-
BWI
7h 40m1 stop
$267Southwest
Sat, Feb 7 - Mon, Feb 16
Frontier Logo
6:31 pm - 12:16 am
BWI
-
SAN
8h 45m1 stop
Frontier Logo
6:55 am - 5:36 pm
SAN
-
BWI
7h 41m1 stop
$268Frontier
Fri, Mar 6 - Mon, Mar 9
Southwest Logo
4:00 pm - 10:05 pm
BWI
-
SAN
9h 05m2 stops
Southwest Logo
6:45 pm - 5:45 am
SAN
-
BWI
8h 00m1 stop
$269Southwest
Tue, Mar 31 - Mon, Apr 6
United Airlines Logo
12:25 pm - 7:54 pm
BWI
-
SAN
10h 29m2 stops
United Airlines Logo
1:00 pm - 11:15 pm
SAN
-
BWI
7h 15m1 stop
$272United Airlines
Wed, Jan 28 - Fri, Jan 30
Alaska Airlines Logo
6:46 pm - 10:04 am
BWI
-
SAN
18h 18m1 stop
Alaska Airlines Logo
8:26 pm - 5:46 pm
SAN
-
BWI
18h 20m1 stop
$273Alaska Airlines
Mon, Feb 23 - Fri, Feb 27
Delta Logo
6:00 am - 2:29 pm
BWI
-
SAN
11h 29m2 stops
Delta Logo
7:00 am - 11:05 pm
SAN
-
BWI
13h 05m2 stops
$274Delta
Tue, Feb 3 - Fri, Feb 6
United Airlines Logo
6:31 pm - 12:14 am
BWI
-
SAN
8h 43m1 stop
United Airlines Logo
6:15 am - 5:23 pm
SAN
-
BWI
8h 08m1 stop
$275United Airlines
Thu, Mar 5 - Sun, Mar 8
Southwest Logo
8:30 am - 11:35 am
BWI
-
SAN
6h 05mnonstop
Southwest Logo
10:25 am - 8:20 pm
SAN
-
BWI
6h 55m1 stop
$276Southwest
Sat, Feb 7 - Mon, Feb 9
Delta Logo
11:00 am - 6:51 pm
BWI
-
SAN
10h 51m1 stop
Delta Logo
10:30 pm - 9:39 am
SAN
-
BWI
8h 09m1 stop
$277Delta
Sat, Mar 7 - Sun, Mar 15

United Airlines flights from Baltimore to San Diego

Our best United Airlines deals on Baltimore to San Diego flight tickets
United Airlines
Jan 28
BWI12:25 pmBaltimore/Washington
10h 29m
2 stops
SAN7:54 pmSan Diego
Jan 30
SAN1:00 pmSan Diego
7h 15m
1 stop
BWI11:15 pmBaltimore/Washington
$272
United Airlines
Mar 5
BWI6:31 pmBaltimore/Washington
8h 43m
1 stop
SAN12:14 amSan Diego
Mar 8
SAN6:15 amSan Diego
8h 08m
1 stop
BWI5:23 pmBaltimore/Washington
$275
United Airlines
Feb 5
BWI3:52 pmBaltimore/Washington
10h 50m
2 stops
SAN11:42 pmSan Diego
Feb 25
SAN11:05 amSan Diego
9h 20m
2 stops
BWI11:25 pmBaltimore/Washington
$278

American Airlines flights from Baltimore to San Diego

Our best American Airlines deals on Baltimore to San Diego flight tickets
American Airlines
Feb 11
BWI11:13 amBaltimore/Washington
10h 18m
2 stops
SAN6:31 pmSan Diego
Feb 17
SAN10:35 pmSan Diego
9h 43m
1 stop
BWI11:18 amBaltimore/Washington
$283
American Airlines
Feb 7
BWI11:13 amBaltimore/Washington
10h 18m
2 stops
SAN6:31 pmSan Diego
Feb 16
SAN6:15 amSan Diego
7h 49m
1 stop
BWI5:04 pmBaltimore/Washington
$291
American Airlines
Feb 12
BWI5:00 amBaltimore/Washington
9h 17m
1 stop
SAN11:17 amSan Diego
Feb 16
SAN10:35 pmSan Diego
9h 43m
1 stop
BWI11:18 amBaltimore/Washington
$295

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 January 8, 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

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 3/31

4:15 pm-7:00 pm

Nonstop5h 45m

San Diego

Mon 4/6

9:40 pm-5:30 am

Nonstop4h 50m

$265

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 2/7

6:45 pm-9:40 pm

Nonstop5h 55m

San Diego

Mon 2/16

7:05 pm-5:45 am

1 stop7h 40m

$267

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 3/6

6:31 pm-12:16 am

1 stop8h 45m

San Diego

Mon 3/9

6:55 am-5:36 pm

1 stop7h 41m

$268

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 3/31

4:00 pm-10:05 pm

2 stops9h 05m

San Diego

Mon 4/6

6:45 pm-5:45 am

1 stop8h 00m

$269

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 1/28

12:25 pm-7:54 pm

2 stops10h 29m

San Diego

Fri 1/30

1:00 pm-11:15 pm

1 stop7h 15m

$272

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 2/23

6:46 pm-10:04 am

1 stop18h 18m

San Diego

Fri 2/27

8:26 pm-5:46 pm

1 stop18h 20m

$273

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 2/3

6:00 am-2:29 pm

2 stops11h 29m

San Diego

Fri 2/6

7:00 am-11:05 pm

2 stops13h 05m

$274

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 3/5

6:31 pm-12:14 am

1 stop8h 43m

San Diego

Sun 3/8

6:15 am-5:23 pm

1 stop8h 08m

$275

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 2/7

8:30 am-11:35 am

Nonstop6h 05m

San Diego

Mon 2/9

10:25 am-8:20 pm

1 stop6h 55m

$276

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 3/7

11:00 am-6:51 pm

1 stop10h 51m

San Diego

Sun 3/15

10:30 pm-9:39 am

1 stop8h 09m

$277

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 $467. 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 afternoon when flights can be purchased for as low as $393. Flights at noon are often more expensive with an average ticket price of $495.

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 $412 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 $362 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 January 2026, prices for Baltimore to San Diego flights are approximately 55% 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

$263

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 $263. 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
5.7
3,061 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $131Free CancellationRating
6.3
8,289 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,672 reviews
Search Alaska Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,032 reviews
Search Delta flights
SouthwestPriceFrom $276Free CancellationRating
8.0
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,142 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,097 reviews
Search American Airlines flights

  • Southwest Flights From Baltimore to San Diego

    The lowest priced Southwest flight from Baltimore to San Diego from the last 72 hours was $276. Generally, Southwest has 15 flights on this route every week with an average price of $436. 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
Imperial Beach
Borrego Springs
La Mesa
San Ysidro
Alpine
Lemon Grove
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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