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Cheap flights from Baltimore to San Diego from $69

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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Frontier Logo
12:42 pm - 12:24 amBWI-SAN
14h 42m1 stop
Frontier Logo
11:49 am - 10:43 amSAN-BWI
19h 54m2 stops
$169Frontier
Find Deal
Sun, Jan 18 - Thu, Jan 22
Frontier Logo
12:49 pm - 11:36 pmBWI-SAN
13h 47m1 stop
Frontier Logo
7:10 am - 12:31 amSAN-BWI
38h 21m2 stops
$208Frontier
Find Deal
Thu, Jan 8 - Tue, Jan 13
Frontier Logo
12:49 pm - 11:36 pmBWI-SAN
13h 47m1 stop
Frontier Logo
12:00 pm - 9:09 amSAN-BWI
18h 09m2 stops
$218Frontier
Find Deal
Thu, Jan 8 - Wed, Jan 14
Frontier Logo
12:49 pm - 11:36 pmBWI-SAN
13h 47m1 stop
Frontier Logo
9:12 pm - 7:50 pmSAN-BWI
19h 38m2 stops
$225Frontier
Find Deal
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
12:49 pm - 11:36 pmBWI-SAN
13h 47m1 stop
Multiple Airlines Logo
7:10 am - 10:27 amSAN-BWI
24h 17m2 stops
$226Multiple Airlines
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Thu, Jan 8 - Tue, Jan 13
United Airlines Logo
12:25 pm - 6:36 pmBWI-SAN
9h 11m1 stop
United Airlines Logo
11:10 am - 11:15 pmSAN-BWI
9h 05m1 stop
$231United Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
12:25 pm - 6:36 pmBWI-SAN
9h 11m1 stop
United Airlines Logo
9:00 am - 9:21 pmSAN-BWI
9h 21m2 stops
$236United Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
10:27 am - 11:56 pmBWI-SAN
16h 29m1 stop
Multiple Airlines Logo
6:25 am - 12:34 amSAN-BWI
15h 09m2 stops
$238Multiple Airlines
Find Deal
Mon, Dec 15 - Thu, Dec 25
United Airlines Logo
4:10 pm - 11:42 pmBWI-SAN
10h 32m2 stops
United Airlines Logo
9:00 am - 9:21 pmSAN-BWI
9h 21m2 stops
$241United Airlines
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Tue, Jan 6 - Tue, Jan 13
Frontier Logo
11:45 am - 9:58 pmBWI-SAN
13h 13m2 stops
Frontier Logo
6:25 am - 9:04 pmSAN-BWI
11h 39m1 stop
$246Frontier
Find Deal
Tue, Jan 6 - Fri, Jan 9

United Airlines flights from Baltimore to San Diego

Our best United Airlines deals on Baltimore to San Diego flight tickets
United Airlines
Jan 8
BWI12:25 pmBaltimore/Washington
9h 11m
1 stop
SAN6:36 pmSan Diego
Jan 12
SAN11:10 amSan Diego
9h 05m
1 stop
BWI11:15 pmBaltimore/Washington
$231
Find similar
United Airlines
Jan 6
BWI12:25 pmBaltimore/Washington
9h 11m
1 stop
SAN6:36 pmSan Diego
Jan 13
SAN9:00 amSan Diego
9h 21m
2 stops
BWI9:21 pmBaltimore/Washington
$236
Find similar
United Airlines
Jan 6
BWI4:10 pmBaltimore/Washington
10h 32m
2 stops
SAN11:42 pmSan Diego
Jan 13
SAN9:00 amSan Diego
9h 21m
2 stops
BWI9:21 pmBaltimore/Washington
$241
Find similar

Frontier flights from Baltimore to San Diego

Our best Frontier deals on Baltimore to San Diego flight tickets
Frontier
Jan 18
BWI12:42 pmBaltimore/Washington
14h 42m
1 stop
SAN12:24 amSan Diego
Jan 22
SAN11:49 amSan Diego
19h 54m
2 stops
BWI10:43 amBaltimore/Washington
$169
Find similar
Frontier
Jan 8
BWI12:49 pmBaltimore/Washington
13h 47m
1 stop
SAN11:36 pmSan Diego
Jan 13
SAN7:10 amSan Diego
38h 21m
2 stops
BWI12:31 amBaltimore/Washington
$208
Find similar
Frontier
Jan 8
BWI12:49 pmBaltimore/Washington
13h 47m
1 stop
SAN11:36 pmSan Diego
Jan 14
SAN12:00 pmSan Diego
18h 09m
2 stops
BWI9:09 amBaltimore/Washington
$218
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 November 26, 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

Sun 1/18

12:42 pm-12:24 am

1 stop14h 42m

San Diego

Thu 1/22

11:49 am-10:43 am

2 stops19h 54m

$169

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

San Diego

Tue 1/13

7:10 am-12:31 am

2 stops38h 21m

$208

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

San Diego

Wed 1/14

12:00 pm-9:09 am

2 stops18h 09m

$218

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

San Diego

Thu 1/15

9:12 pm-7:50 pm

2 stops19h 38m

$225

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

San Diego

Tue 1/13

7:10 am-10:27 am

2 stops24h 17m

$226

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/8

12:25 pm-6:36 pm

1 stop9h 11m

San Diego

Mon 1/12

11:10 am-11:15 pm

1 stop9h 05m

$231

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 1/6

12:25 pm-6:36 pm

1 stop9h 11m

San Diego

Tue 1/13

9:00 am-9:21 pm

2 stops9h 21m

$236

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 12/15

10:27 am-11:56 pm

1 stop16h 29m

San Diego

Thu 12/25

6:25 am-12:34 am

2 stops15h 09m

$238

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 1/6

4:10 pm-11:42 pm

2 stops10h 32m

San Diego

Tue 1/13

9:00 am-9:21 pm

2 stops9h 21m

$241

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Tue 1/6

11:45 am-9:58 pm

2 stops13h 13m

San Diego

Fri 1/9

6:25 am-9:04 pm

1 stop11h 39m

$246

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 $375.

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 $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 $424 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 $365 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

$228

Fastest flight time

5h 35m

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 $228. The best round-trip flight deal from Baltimore to San Diego found on momondo in the last 72 hours is $367.
The fastest flight from Baltimore to San Diego takes 5h 35m
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 6h 05m 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
Spirit AirlinesPriceFrom $129Free CancellationRating
6.3
8,158 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,099 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,355 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
DeltaPriceFrom $260Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,253 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 22 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 9,046 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.

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
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.

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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