Cheap Flights from Baltimore Washington International to San Diego International

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Flight deals from Baltimore Washington International to San Diego International

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International to San Diego International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Baltimore Washington International to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to San Diego International flights are currently cheapest in June.

Direct flights from Baltimore Washington International to San Diego International

Baltimore Washington International to San Diego International: Alternative routes

Compare routes from Baltimore Washington International to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Washington D.C. to San Diego: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 311
Cheapest month to flyJune
Average flight time5 hrs, 34 mins
Most popular airlineSouthwest Airlines
Average flights per week19

Finding cheap flights from Baltimore Washington International to San Diego International: Frequently asked questions

The best price we found for a return flight from Baltimore Washington International to San Diego International is ر.ق.‏ 553. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 34 minutes is the average flight time from Baltimore Washington International to San Diego International.
Southwest Airlines and Alaska Airlines fly direct from Baltimore Washington International to San Diego International.
As of April 2025, there are 19 flights per week flying from Baltimore Washington International to San Diego International.
The cheapest month to fly from Baltimore Washington International to San Diego International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to San Diego International Airport on Wednesday, 28 May 2025.
Yes – the average flight time is 5 hours and 34 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines and Southwest Airlines offer the cheapest flight tickets to San Diego International.

Travelling from Baltimore/Wash International Thurgood Marshall Airport (BWI) to San Diego International Airport (SAN): what you need to know

  • Jump on a direct flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport and you'll be in the air for an average of 5 hours 30 minutes.

  • The timezone in San Diego is UTC-7, which is three hours behind Washington DC.

  • Each week, there are 15 Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport flights. If you want to get going as early as possible, go for the 06:15 Southwest Airlines flight. If you'd rather make the most of your day before you fly, the latest flight is at 21:00 with Southwest Airlines.

  • Get to the airport on time so you don't miss your BWI to SAN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Be prepared for longer lines in popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.

  • Spirit Airlines is your gateway to discovering San Diego (and maybe even some other great parts of United States!). Check out the direct flights from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport offered by this carrier.

  • Spirit Airlines has the highest passenger demand on this route.

  • With 72.41% of services landing on schedule, Southwest Airlines is the most punctual carrier offering BWI to SAN flights.

  • Think about adding a stopover when booking your ticket from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport. Simply uncheck 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here's where you can stop between BWI and SAN:

    • John Glenn Columbus International Airport

    • Lambert-St. Louis International Airport

    • Denver International Airport

How to find the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport (BWI) to San Diego International Airport (SAN)

  • ر.ق.‏ 311 is the lowest price for a one-way Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport flight. A return flight starts from ر.ق.‏ 553. These prices can change depending on demand.

  • To secure cheap tickets from BWI to SAN, reserve your trip six months ahead of your planned departure.

  • Organise your trip for May. That's the cheapest month for flights from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest airfare across every month.

  • Finding cheap flights from BWI to SAN is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Lock in the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and journey duration.

Handy information about Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • When it comes to Baltimore/Wash International Thurgood Marshall Airport's on-time performance, 77.13% of flights arrive within the expected timeframe.

  • To reach Baltimore/Wash International Thurgood Marshall Airport from central Washington DC, it takes about 50 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 48 kilometres from the airport to the city centre.

  • Taking public transport? You can expect a journey time of around 1 hour 30 minutes.

  • Looking for a convenient hotel close to BWI? If you've booked an early flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport, these stays will have you sleeping moments from your check-in counter:

Arriving at San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • You'll find SAN at Airport Drive.

  • San Diego International Airport is approximately 5 kilometres from central San Diego. Driving there takes about 10 minutes.

  • Travelling to the centre on public transport typically takes 20 minutes.

When to fly to San Diego International Airport (SAN)

  • It's time to choose your travel dates for your flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport. July is the most popular month to visit San Diego. If you want a more low-key vibe, go in May.

  • When reserving your flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego International Airport, consider the kind of weather you like. August is the warmest month in San Diego, with temperatures ranging from 17ºC to 28ºC.

  • February sees average temperatures of between 7ºC and 23ºC. Search for cheap tickets from BWI to SAN sometime then if you want to travel in cooler conditions.

Explore more of United States

  • San Diego is easy to fall in love with, but there are so many other corners of United States just waiting to be discovered. Around 177 kilometres north-west of San Diego, a visit to Los Angeles will fill your itinerary to the brim. Check out popular attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 483 kilometres east of San Diego, Phoenix is another essential stop in United States. No visit is complete without checking out Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.