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£52 Cheap Flights from San Diego (SAN) to Baltimore (BWI)

View £52 flight on Wed, 2 Sept 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Baltimore Washington International Airport (BWI)

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

Prices were available within the past 7 days and start at £52 for one-way flights and £118 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 21 Sept - Tue, 29 Sept
SAN
San Diego
BWI
Baltimore
£118 Return, found 7 hours ago
£118
Return
found 7 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Diego to Baltimore, returning Tue, 29 Sept, priced at £118 found 7 hours ago
Alaska Airlines
Thu, 17 Sept - Wed, 23 Sept
SAN
San Diego
BWI
Baltimore
£139 Return, found 2 days ago
£139
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 17 Sept from San Diego to Baltimore, returning Wed, 23 Sept, priced at £139 found 2 days ago
Alaska Airlines
Mon, 21 Sept - Tue, 29 Sept
SAN
San Diego
BWI
Baltimore
£156 Return, found 7 hours ago
£156
Return
found 7 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Diego to Baltimore, returning Tue, 29 Sept, priced at £156 found 7 hours ago
Alaska Airlines
Mon, 21 Sept - Tue, 29 Sept
SAN
San Diego
BWI
Baltimore
£193 Return, found 7 hours ago
£193
Return
found 7 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Diego to Baltimore, returning Tue, 29 Sept, priced at £193 found 7 hours ago
Alaska Airlines
Mon, 21 Sept - Tue, 29 Sept
SAN
San Diego
BWI
Baltimore
£205 Return, found 7 hours ago
£205
Return
found 7 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Diego to Baltimore, returning Tue, 29 Sept, priced at £205 found 7 hours ago
Alaska Airlines
Fri, 13 Nov - Tue, 17 Nov
SAN
San Diego
BWI
Baltimore
£222 Return, found 2 days ago
£222
Return
found 2 days ago
Select Alaska Airlines flight, departing Fri, 13 Nov from San Diego to Baltimore, returning Tue, 17 Nov, priced at £222 found 2 days ago
Alaska Airlines
Mon, 21 Sept - Tue, 29 Sept
SAN
San Diego
BWI
Baltimore
£243 Return, found 7 hours ago
£243
Return
found 7 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Diego to Baltimore, returning Tue, 29 Sept, priced at £243 found 7 hours ago
Alaska Airlines
Wed, 23 Sept - Wed, 30 Sept
SAN
San Diego
BWI
Baltimore
£260 Return, found 2 days ago
£260
Return
found 2 days ago
Select Alaska Airlines flight, departing Wed, 23 Sept from San Diego to Baltimore, returning Wed, 30 Sept, priced at £260 found 2 days ago
Alaska Airlines
Wed, 23 Sept - Wed, 30 Sept
SAN
San Diego
BWI
Baltimore
£260 Return, found 2 days ago
£260
Return
found 2 days ago
Select Alaska Airlines flight, departing Wed, 23 Sept from San Diego to Baltimore, returning Wed, 30 Sept, priced at £260 found 2 days ago
JetBlue Airways
Mon, 7 Dec - Fri, 11 Dec
SAN
San Diego
BWI
Baltimore
£424 Return, found 4 days ago
£424
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 7 Dec from San Diego to Baltimore, returning Fri, 11 Dec, priced at £424 found 4 days ago

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city centre is 57 minutes. Flights from £323
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city centre57 min
Flights from £323

Frequently asked questions

How much does a flight from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) cost?
You can find one-way and return flights from SAN to BWI with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SAN to BWI ticket fares go up or down.
What is the cheapest month to fly from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
If you're looking for the cheapest time to fly from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall), September is typically your best bet. You can expect average return fares around £279 during this month. September often sees lower prices because the summer travel rush has ended, and demand starts to decrease. Other budget-friendly months for this route include February and March.
Which airlines fly direct from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Only one airline offers direct flights from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall). Southwest Airlines operates 24 direct flights from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) every week.
What is the cheapest airline that flies from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
Southwest Airlines is one of the cheapest airlines offering nonstop return flights from San Diego Intl. (SAN) to Baltimore Washington Intl. Thurgood Marshall (BWI), with tickets starting from around £114 for flights that can be booked for departure within the next year. Sun Country Airlines offers one of the cheapest connecting return flights from San Diego Intl. (SAN) to Baltimore Washington Intl. Thurgood Marshall (BWI) starting from around £244. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from San Diego, CA (SAN) to Baltimore, MD (BWI)?
To find a cheap flight from San Diego, CA (SAN) to Baltimore, MD (BWI), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Diego, CA (SAN) to Baltimore, MD (BWI)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
The earliest flight from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) typically departs around 12:55 AM local time. This service is operated by American Airlines. This is a seasonal service active in May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)?
A non-stop flight from San Diego Intl. (SAN) to Baltimore Washington Intl. Thurgood Marshall (BWI) typically takes around 5 hours. This route covers a distance of approximately 3,687 kilometers. If you opt for a one-stop flight, the journey will take longer, usually around 7 hours 48 minutes. Flights with two or more stops will extend your travel time even further, to about 10 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from San Diego, CA (SAN) to Baltimore, MD (BWI)?
Select the "Business class" and "First class" filters when looking for San Diego, CA (SAN) to Baltimore, MD (BWI) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight with Expedia?
It's easy to earn miles on a San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Baltimore, MD (BWI) from San Diego, CA (SAN)?
If you're planning to travel to Baltimore from San Diego Intl. (SAN), you can fly directly into Baltimore Washington Intl. Thurgood Marshall (BWI). Some flights may connect through major hubs like Sky Harbor Intl. (PHX), Denver Intl. (DEN), or Harry Reid International Airport (LAS) before reaching Baltimore. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) at the last minute?
Typically, booking a last minute flight from San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package?
Securing a San Diego, CA (SAN-San Diego Intl.) to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego, CA (SAN) to Baltimore, MD (BWI)?
If you booked your San Diego, CA (SAN) to Baltimore, MD (BWI) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Diego Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines
Return price
£118
Distance
3664 km
Average flight time
8 hours 9 mins

Book with confidence

Compare flights from San Diego to Baltimore easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Diego to Baltimore. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Baltimore Washington Intl. Thurgood Marshall in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Diego Intl. to Baltimore Washington Intl. Thurgood Marshall.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Diego Intl. (SAN) to Baltimore Washington Intl. Thurgood Marshall (BWI)

The easiest way to view the best deals on flights from San Diego to Baltimore today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Diego Intl. to Baltimore Washington Intl. Thurgood Marshall start at just £118 and range up to £424.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Diego and Baltimore
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Diego to Baltimore flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Diego Intl. to Baltimore Washington Intl. Thurgood Marshall for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Diego to Baltimore easily and book with confidence

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*Available to Expedia members.