BWI - SAN

$80 Find Cheap Flights from Baltimore to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to San Diego departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Diego.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Diego.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$273
Overall average: $373
Frontier
Tue 5/12Tue 5/19
BWI - SAN • 2 stops
Cheapest non-stop
$297
Typical prices: $297-$467
Southwest
Sat 5/2Tue 5/5
BWI - SAN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest's two free checked bags save on luggage fees.
Spirit's Wi-Fi keeps you connected gate-to-gate.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $273 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 5h 40m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $241 (round-trip)
Shortest trip • 6h 50m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 9% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Baltimore to San Diego (BWI-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to San Diego

Tue, May 12 - Tue, May 19
Frontier Logo
9:25 pm - 12:43 pm
BWI
-
SAN
42h 18m
2 stops
Frontier Logo
6:25 am - 5:37 pm
SAN
-
BWI
8h 12m
1 stop
$273Frontier
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
7:04 am - 3:53 pm
BWI
-
SAN
11h 49m
1 stop
Multiple Airlines Logo
6:25 am - 6:29 pm
SAN
-
BWI
9h 04m
1 stop
$274Multiple Airlines
Tue, May 5 - Sat, May 9
Multiple Airlines Logo
7:04 am - 3:53 pm
BWI
-
SAN
11h 49m
1 stop
Multiple Airlines Logo
6:25 am - 6:29 pm
SAN
-
BWI
9h 04m
1 stop
$279Multiple Airlines
Tue, May 12 - Tue, May 19
Frontier Logo
6:22 pm - 5:59 pm
BWI
-
SAN
26h 37m
1 stop
Frontier Logo
6:25 am - 5:37 pm
SAN
-
BWI
8h 12m
1 stop
$281Frontier
Thu, Apr 9 - Tue, Apr 14
Multiple Airlines Logo
9:26 pm - 4:15 pm
BWI
-
SAN
21h 49m
2 stops
Multiple Airlines Logo
2:12 pm - 7:20 am
SAN
-
BWI
14h 08m
1 stop
$285Multiple Airlines
Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
4:55 pm - 7:21 am
BWI
-
SAN
41h 26m
2 stops
Multiple Airlines Logo
2:12 pm - 7:20 am
SAN
-
BWI
14h 08m
1 stop
$288Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
11:49 am - 9:35 pm
BWI
-
SAN
12h 46m
1 stop
Multiple Airlines Logo
12:37 pm - 11:56 pm
SAN
-
BWI
8h 19m
1 stop
$289Multiple Airlines
Thu, Apr 30 - Wed, May 6
Frontier Logo
11:21 am - 11:59 pm
BWI
-
SAN
15h 38m
2 stops
Frontier Logo
6:25 am - 5:37 pm
SAN
-
BWI
8h 12m
1 stop
$290Frontier
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
6:28 pm - 11:59 pm
BWI
-
SAN
8h 31m
1 stop
United Airlines Logo
5:00 pm - 5:15 am
SAN
-
BWI
9h 15m
1 stop
$292United Airlines
Mon, Apr 20 - Tue, May 5
Frontier Logo
8:57 am - 5:48 pm
BWI
-
SAN
11h 51m
2 stops
Frontier Logo
6:25 am - 5:37 pm
SAN
-
BWI
8h 12m
1 stop
$294Frontier
Booking Insights

KAYAK's insights & trends for Baltimore to San Diego flights

Get data-powered insights and trends into flights from Baltimore to San Diego to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Baltimore to San Diego?

The average price of all round-trip flights from Baltimore to San Diego clicked on KAYAK for each day over the last 12 months.

For Baltimore to San Diego, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from San Diego back to Baltimore, the best deals are generally found on Wednesday, with Saturday being the most expensive.

What is the cheapest month to fly from Baltimore to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Baltimore to San Diego is July, where tickets cost $354 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $470 and $415 respectively.

Can I save money by flying with a layover from Baltimore to San Diego?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $391, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Baltimore to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Baltimore to San Diego, you should book around 4 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Baltimore to San Diego

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Harriet Baskas

Harriet Baskas

Expert on BWI

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$80
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Baltimore to San Diego

When to book flights from Baltimore to San Diego

Are your dates flexible? Find out the best times to travel from Baltimore to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to San Diego

  • Are there lounges at Baltimore/ Washington International Airport?

    Baltimore/ Washington International Airport has The Club BWI lounge, which features amenities that enrich passengers’ experience. You’ll explore the comfortable seats, power outlets, free internet, and complimentary beverage and food options when you visit the lounge. This lounge is situated at Concourse D close to Gate 10.

  • Does San Diego International Airport have nursing stations for mothers?

    San Diego International Airport minds mothers as it has three lactation rooms. If you are a mother traveling with an infant, you can get to feed and change your baby’s clothes in any of the lactation rooms found post-security. Two are located on Terminal 1 West Rotunda and East Rotunda, respectively, and one on Terminal 2 at the second level close to Gates 34 to 35. The nursing stations also have a hand washing station, soft lighting, artwork, and electrical outlets.

  • Is there an art center at Baltimore/ Washington International Airport?

    Baltimore/ Washington International Airport has art exhibits that are a site to marvel at for passengers who are art lovers. The art galleries are located in various sections of the airport. For example, the D Concourse Art gallery is close to Gates D1 to D5, and the International Art Gallery can be found close to the Security Checkpoint D/E. You may also access the Arts Council of Anne Arundel County Exhibit near Door 10 at the Departures Level.

  • Where can I sleep or rest while waiting for my Baltimore/ Washington International Airport flight?

    If your flight is delayed at BWI, visit Concourse D and E to enjoy a comfortable rest or sleep on the cozy padded benches and narrow couches. In addition, concourse C has armrest-free seats that are ideal for resting.

  • What is the cheapest flight from Baltimore to San Diego?

    In the last 3 days, the lowest price for a flight from Baltimore to San Diego was $80 for a one-way ticket and $273 for a round-trip.

  • Do I need a passport to fly between Baltimore and San Diego?

    No, a passport isn't needed to fly from Baltimore to San Diego. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Baltimore to San Diego?

    Baltimore and San Diego are both served by 1 main airport. You will leave Baltimore from Baltimore/Washington and will be arriving at San Diego.

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to San Diego?

    Alaska Airlines, JetBlue, and American Airlines offer inflight Wi-Fi service on the Baltimore to San Diego flight route.

  • Which aircraft models fly most regularly from Baltimore to San Diego?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Baltimore to San Diego flight route.

  • Which airline alliances offer flights from Baltimore to San Diego?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Baltimore and San Diego, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Baltimore to San Diego?

    There are nonstop flights from Baltimore to San Diego on a daily basis.

  • Which is the best airline for flights from Baltimore to San Diego, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Baltimore to San Diego are Southwest and Delta. With an average price for the route of $393 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $363 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Baltimore to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Baltimore to San Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $168 or less one-way and $364 or less round-trip.
  • Suppose you are scheduled to arrive late at the San Diego International Airport (SAN); there are several excellent hotels to stay the night in that are close to the airport. Consider staying at Hilton San Diego Airport/ Harbor Island, about 1 mile away, or Holiday Inn Express San Diego Airport- Old Town, an IHG hotel about 0.8 miles away.
  • Those with flights from Baltimore/ Washington International Airport (BWI) to San Diego International Airport can consider getting to the airport early to beat the city’s morning rush hour. Rush hour starts from about 6 am to 10 am. Put this in mind as you plan to arrive at least 2h before departure to avoid the morning hassle of commuting.
  • Baltimore/ Washington International Airport has a children’s play area, which is essential for families traveling with children. The children’s play area is located in the D/E Connector, and children can enjoy comfortable seats, toys, and great views of airplanes.
  • If you are arriving at the San Diego International Airport, there are plenty of restaurants from which you may enjoy a meal. A wide array of dining options can be found in Terminal 1, Terminal 2 West, and Terminal 2 East. The restaurants range from coffee shops to international restaurants such as Saffron Thai.
  • Those driving into Baltimore/ Washington International Airport for their flights can park their vehicles at the airport’s parking. For long-term parking, you can park at the parking located between Andover Road and S. Camp Meade Road.

Prefer to fly direct from Baltimore to San Diego?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Baltimore/Washington to San Diego.
Find which airlines fly direct from Baltimore/Washington Airport to San Diego Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to San Diego

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

San Diego to Baltimore/Washington

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 5 airlines serving from Baltimore to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4324 reviews
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
8.1Boarding
Airline reviews

Boarding was easy. The seats are small and fairly uncomfortable

8.0 ExcellentNicole, Mar 2026
LGB - OAK
Read more Southwest reviews

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

The charges were ridiculous for an hour flight and the turbulence was very scary.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

Everything you need to know for your flight from Baltimore to San Diego

Other airlines flying from Baltimore to San Diego

Flights from the other most popular airlines that fly from Baltimore to San Diego according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.