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Cheap flights from Baltimore to San Diego from $67

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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Cheap round-trip flights

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Frontier Logo
12:42 pm - 12:24 amBWI-SAN
14h 42m1 stop
Frontier Logo
11:49 am - 12:36 amSAN-BWI
33h 47m2 stops
$168Frontier
Find Deal
Sun, Jan 18 - Thu, Jan 22
Frontier Logo
10:00 pm - 7:15 pmBWI-SAN
24h 15m2 stops
Frontier Logo
6:45 am - 8:13 pmSAN-BWI
10h 28m1 stop
$182Frontier
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Sun, Dec 21 - Fri, Dec 26
Frontier Logo
12:42 pm - 12:24 amBWI-SAN
14h 42m1 stop
Frontier Logo
6:25 am - 7:50 pmSAN-BWI
10h 25m1 stop
$185Frontier
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Thu, Jan 15 - Mon, Jan 19
Frontier Logo
8:17 am - 11:59 pmBWI-SAN
18h 42m2 stops
Frontier Logo
6:45 am - 8:13 pmSAN-BWI
10h 28m1 stop
$191Frontier
Find Deal
Thu, Dec 18 - Fri, Dec 26
Frontier Logo
10:05 am - 12:24 amBWI-SAN
17h 19m2 stops
Frontier Logo
6:25 am - 7:50 pmSAN-BWI
10h 25m1 stop
$204Frontier
Find Deal
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
6:51 pm - 11:59 pmBWI-SAN
8h 08m1 stop
Frontier Logo
6:25 am - 9:45 amSAN-BWI
24h 20m2 stops
$213Frontier
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
6:51 pm - 11:59 pmBWI-SAN
8h 08m1 stop
Multiple Airlines Logo
6:25 am - 6:01 pmSAN-BWI
8h 36m1 stop
$215Multiple Airlines
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Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
10:27 am - 11:51 pmBWI-SAN
16h 24m1 stop
Multiple Airlines Logo
1:06 pm - 12:29 amSAN-BWI
32h 23m2 stops
$217Multiple Airlines
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Thu, Dec 11 - Thu, Dec 18
Multiple Airlines Logo
7:00 am - 3:06 pmBWI-SAN
11h 06m1 stop
Multiple Airlines Logo
6:25 am - 7:52 pmSAN-BWI
10h 27m1 stop
$218Multiple Airlines
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Wed, Dec 10 - Sun, Dec 14
Frontier Logo
12:34 pm - 12:11 amBWI-SAN
14h 37m1 stop
Frontier Logo
6:25 am - 7:50 pmSAN-BWI
10h 25m1 stop
$219Frontier
Find Deal
Fri, Jan 16 - Mon, Jan 19

Alaska Airlines flights from Baltimore to San Diego

Our best Alaska Airlines deals on Baltimore to San Diego flight tickets
Alaska Airlines
Jan 6
BWI7:04 amBaltimore/Washington
12h 27m
1 stop
SAN4:31 pmSan Diego
Jan 21
SAN6:15 amSan Diego
8h 59m
1 stop
BWI6:14 pmBaltimore/Washington
$256
Find similar
Alaska Airlines
Jan 5
BWI7:04 amBaltimore/Washington
12h 27m
1 stop
SAN4:31 pmSan Diego
Jan 24
SAN6:15 amSan Diego
8h 59m
1 stop
BWI6:14 pmBaltimore/Washington
$276
Find similar
Alaska Airlines
Nov 17
BWI7:38 amBaltimore/Washington
10h 09m
1 stop
SAN2:47 pmSan Diego
Nov 19
SAN6:15 amSan Diego
9h 01m
1 stop
BWI6:16 pmBaltimore/Washington
$466
Find similar

Southwest flights from Baltimore to San Diego

Our best Southwest deals on Baltimore to San Diego flight tickets
Southwest
Dec 10
BWI7:00 amBaltimore/Washington
5h 45m
SAN9:45 amSan Diego
Dec 13
SAN6:10 pmSan Diego
8h 00m
1 stop
BWI5:10 amBaltimore/Washington
$257
Find similar
Southwest
Dec 3
BWI6:50 pmBaltimore/Washington
5h 45m
SAN9:35 pmSan Diego
Dec 10
SAN12:40 pmSan Diego
6h 50m
1 stop
BWI10:30 pmBaltimore/Washington
$267
Find similar
Southwest
Dec 6
BWI1:50 pmBaltimore/Washington
7h 05m
1 stop
SAN5:55 pmSan Diego
Dec 10
SAN7:40 pmSan Diego
7h 05m
1 stop
BWI5:45 amBaltimore/Washington
$272
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 13, 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-12:36 am

2 stops33h 47m

$168

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 12/21

10:00 pm-7:15 pm

2 stops24h 15m

San Diego

Fri 12/26

6:45 am-8:13 pm

1 stop10h 28m

$182

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/15

12:42 pm-12:24 am

1 stop14h 42m

San Diego

Mon 1/19

6:25 am-7:50 pm

1 stop10h 25m

$185

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 12/18

8:17 am-11:59 pm

2 stops18h 42m

San Diego

Fri 12/26

6:45 am-8:13 pm

1 stop10h 28m

$191

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 1/15

10:05 am-12:24 am

2 stops17h 19m

San Diego

Mon 1/19

6:25 am-7:50 pm

1 stop10h 25m

$204

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 11/27

6:51 pm-11:59 pm

1 stop8h 08m

San Diego

Thu 12/4

6:25 am-9:45 am

2 stops24h 20m

$213

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 11/27

6:51 pm-11:59 pm

1 stop8h 08m

San Diego

Thu 12/4

6:25 am-6:01 pm

1 stop8h 36m

$215

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 12/11

10:27 am-11:51 pm

1 stop16h 24m

San Diego

Thu 12/18

1:06 pm-12:29 am

2 stops32h 23m

$217

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 12/10

7:00 am-3:06 pm

1 stop11h 06m

San Diego

Sun 12/14

6:25 am-7:52 pm

1 stop10h 27m

$218

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 1/16

12:34 pm-12:11 am

1 stop14h 37m

San Diego

Mon 1/19

6:25 am-7:50 pm

1 stop10h 25m

$219

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 $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 $428 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 $374 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 35% 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 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 $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 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 5h 40m 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
8,139 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,114 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,281 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
DeltaPriceFrom $260Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,236 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 24 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 9,015 reviews) operates around 4 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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