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Cheap flights from Baltimore to San Diego from $72

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 11/12. 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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Find the cheapest flights from Baltimore to San Diego

Cheap round-trip flights

Southwest Logo
3:55 pm - 9:00 pmBWI-SAN
8h 05m1 stop
Southwest Logo
8:40 am - 8:00 pmSAN-BWI
8h 20m2 stops
$175Southwest
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Sat, Nov 1 - Wed, Nov 5
Frontier Logo
12:53 pm - 5:54 pmBWI-SAN
8h 01m1 stop
Frontier Logo
7:43 pm - 10:23 amSAN-BWI
11h 40m1 stop
$180Frontier
Find Deal
Mon, Oct 6 - Fri, Oct 10
American Airlines Logo
5:00 am - 9:09 amBWI-SAN
7h 09m1 stop
American Airlines Logo
10:31 pm - 10:21 amSAN-BWI
8h 50m1 stop
$185American Airlines
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Sat, Oct 11 - Tue, Oct 14
American Airlines Logo
5:00 am - 9:09 amBWI-SAN
7h 09m1 stop
American Airlines Logo
12:54 pm - 12:33 amSAN-BWI
8h 39m1 stop
$186American Airlines
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Sat, Oct 11 - Sat, Oct 18
United Airlines Logo
7:28 pm - 11:41 pmBWI-SAN
7h 13m1 stop
United Airlines Logo
11:08 am - 11:18 pmSAN-BWI
9h 10m2 stops
$190United Airlines
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Wed, Oct 15 - Tue, Oct 21
Spirit Airlines Logo
7:02 pm - 7:29 amBWI-SAN
15h 27m1 stop
Spirit Airlines Logo
1:35 pm - 4:30 amSAN-BWI
11h 55m1 stop
$192Spirit Airlines
Find Deal
Sun, Sep 28 - Tue, Sep 30
United Airlines Logo
4:15 pm - 9:45 pmBWI-SAN
8h 30m1 stop
United Airlines Logo
10:30 pm - 9:55 amSAN-BWI
8h 25m1 stop
$200United Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 15
Logo
7:50 am - 9:20 pmBWI-SAN
16h 30m1 stop
Logo
8:00 am - 4:30 amSAN-BWI
17h 30m1 stop
$201
Find Deal
Wed, Oct 15 - Tue, Oct 21
Logo
7:50 am - 9:20 pmBWI-SAN
16h 30m1 stop
Logo
6:25 am - 5:16 pmSAN-BWI
7h 51m1 stop
$204
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Wed, Oct 8 - Thu, Oct 9
Spirit Airlines Logo
1:17 pm - 11:34 pmBWI-SAN
13h 17m2 stops
Spirit Airlines Logo
1:35 pm - 4:30 amSAN-BWI
11h 55m1 stop
$205Spirit Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4

Frontier flights from Baltimore to San Diego

Our best Frontier deals on Baltimore to San Diego flight tickets
Frontier
Oct 6
BWI12:53 pmBaltimore/Washington
8h 01m
1 stop
SAN5:54 pmSan Diego
Oct 10
SAN7:43 pmSan Diego
11h 40m
1 stop
BWI10:23 amBaltimore/Washington
$180
Find similar
Frontier
Oct 24
BWI6:29 pmBaltimore/Washington
21h 59m
1 stop
SAN1:28 pmSan Diego
Oct 26
SAN7:23 pmSan Diego
11h 55m
1 stop
BWI10:18 amBaltimore/Washington
$184
Find similar
Frontier
Oct 3
BWI12:53 pmBaltimore/Washington
8h 23m
1 stop
SAN6:16 pmSan Diego
Oct 6
SAN6:35 amSan Diego
8h 07m
1 stop
BWI5:42 pmBaltimore/Washington
$188
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Spirit Airlines flights from Baltimore to San Diego

Our best Spirit Airlines deals on Baltimore to San Diego flight tickets
Spirit Airlines
Sep 28
BWI7:02 pmBaltimore/Washington
15h 27m
1 stop
SAN7:29 amSan Diego
Sep 30
SAN1:35 pmSan Diego
11h 55m
1 stop
BWI4:30 amBaltimore/Washington
$192
Find similar
Spirit Airlines
Oct 1
BWI1:17 pmBaltimore/Washington
13h 17m
2 stops
SAN11:34 pmSan Diego
Oct 4
SAN1:35 pmSan Diego
11h 55m
1 stop
BWI4:30 amBaltimore/Washington
$205
Find similar
Spirit Airlines
Oct 1
BWI7:02 pmBaltimore/Washington
7h 32m
1 stop
SAN11:34 pmSan Diego
Oct 4
SAN1:35 pmSan Diego
11h 55m
1 stop
BWI4:30 amBaltimore/Washington
$226
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 September 15, 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 11/1

3:55 pm-9:00 pm

1 stop8h 05m

San Diego

Wed 11/5

8:40 am-8:00 pm

2 stops8h 20m

$175

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Mon 10/6

12:53 pm-5:54 pm

1 stop8h 01m

San Diego

Fri 10/10

7:43 pm-10:23 am

1 stop11h 40m

$180

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 10/11

5:00 am-9:09 am

1 stop7h 09m

San Diego

Tue 10/14

10:31 pm-10:21 am

1 stop8h 50m

$185

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 10/11

5:00 am-9:09 am

1 stop7h 09m

San Diego

Sat 10/18

12:54 pm-12:33 am

1 stop8h 39m

$186

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 10/15

7:28 pm-11:41 pm

1 stop7h 13m

San Diego

Tue 10/21

11:08 am-11:18 pm

2 stops9h 10m

$190

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sun 9/28

7:02 pm-7:29 am

1 stop15h 27m

San Diego

Tue 9/30

1:35 pm-4:30 am

1 stop11h 55m

$192

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 10/9

4:15 pm-9:45 pm

1 stop8h 30m

San Diego

Wed 10/15

10:30 pm-9:55 am

1 stop8h 25m

$200

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 10/15

7:50 am-9:20 pm

1 stop16h 30m

San Diego

Tue 10/21

8:00 am-4:30 am

1 stop17h 30m

$201

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 10/8

7:50 am-9:20 pm

1 stop16h 30m

San Diego

Thu 10/9

6:25 am-5:16 pm

1 stop7h 51m

$204

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 10/1

1:17 pm-11:34 pm

2 stops13h 17m

San Diego

Sat 10/4

1:35 pm-4:30 am

1 stop11h 55m

$205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between Baltimore and San Diego?

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 $391. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $478. 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 $485.

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 $445 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 $383 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.

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

As of September 2025, prices for Baltimore to San Diego flights are approximately 33% 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

$158

Fastest flight time

5h 25m

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 $158. 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 25m
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 35m 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
3,172 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $157Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,954 reviews
Search Delta flights
SouthwestPriceFrom $307Free CancellationRating
8.0
4,242 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 $307. Generally, Southwest has 17 flights on this route every week with an average price of $494. Southwest is rated 8.0/10 by our users.

  • United Airlines Flights From Baltimore to San Diego

    United Airlines (7.4/10 from 8,929 reviews) operates around 4 flights from Baltimore to San Diego in any given week. The average United Airlines airfare for this route is around $479, with deals from around $257 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
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
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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