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197 € Cheap Flights from Baltimore Washington International to San Diego

Compare Baltimore Washington International to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

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Flight deals from Baltimore Washington International Airport to San Diego

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to San Diego? If you want to travel next month, return fares start from 212 €. Find the lowest prices on one-way and return tickets right here.
San Diego.197 € per passenger.Departing Tue, 28 Apr, returning Tue, 5 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 28 Apr, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Tue, 5 May, arriving in Baltimore Washington International.Price includes taxes and charges.From 197 €, select.
San Diego.205 € per passenger.Departing Sat, 2 May, returning Tue, 5 May.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 2 May, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 5 May, arriving in Baltimore Washington International.Price includes taxes and charges.From 205 €, select.
San Diego.207 € per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 25 Apr, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sat, 2 May, arriving in Baltimore Washington International.Price includes taxes and charges.From 207 €, select.
San Diego.212 € per passenger.Departing Wed, 15 Apr, returning Mon, 20 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Wed, 15 Apr, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 20 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From 212 €, select.
San Diego.224 € per passenger.Departing Sat, 25 Apr, returning Mon, 27 Apr.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 25 Apr, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 27 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From 224 €, select.
San Diego.275 € per passenger.Departing Sun, 9 Aug, returning Wed, 19 Aug.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Sun, 9 Aug, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Wed, 19 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From 275 €, select.
San Diego.275 € per passenger.Departing Tue, 17 Nov, returning Mon, 23 Nov.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Tue, 17 Nov, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Mon, 23 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 275 €, select.
San Diego.275 € per passenger.Departing Tue, 28 Jul, returning Thu, 6 Aug.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Tue, 28 Jul, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Thu, 6 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From 275 €, select.
San Diego.292 € per passenger.Departing Sat, 29 Aug, returning Tue, 1 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Sat, 29 Aug, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Tue, 1 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 292 €, select.
San Diego.293 € per passenger.Departing Fri, 17 Jul, returning Mon, 20 Jul.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Fri, 17 Jul, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Mon, 20 Jul, arriving in Baltimore Washington International.Price includes taxes and charges.From 293 €, select.
San Diego.293 € per passenger.Departing Thu, 28 May, returning Mon, 1 Jun.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 28 May, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 1 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 293 €, select.
San Diego.293 € per passenger.Departing Wed, 27 May, returning Mon, 1 Jun.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Baltimore Washington International on Wed, 27 May, arriving in San Diego International.Inbound indirect flight with Southwest Airlines, departs from San Diego International on Mon, 1 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 293 €, select.
San Diego.295 € per passenger.Departing Fri, 5 Jun, returning Sun, 7 Jun.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Fri, 5 Jun, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 7 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 295 €, select.
San Diego.306 € per passenger.Departing Wed, 16 Sep, returning Tue, 22 Sep.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Wed, 16 Sep, arriving in San Diego International.Inbound indirect flight with Alaska Airlines, departs from San Diego International on Tue, 22 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 306 €, select.
San Diego.321 € per passenger.Departing Tue, 31 Mar, returning Tue, 7 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 31 Mar, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Tue, 7 Apr, arriving in Baltimore Washington International.Price includes taxes and charges.From 321 €, select.
San Diego.328 € per passenger.Departing Thu, 11 Jun, returning Mon, 15 Jun.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 11 Jun, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 15 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 328 €, select.

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

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 flights are currently cheapest in May.
Mar
from 368 €
Apr
from 212 €
May
from 205 €
Jun
from 295 €
Jul
from 293 €
Aug
from 275 €
Sep
from 306 €
Oct
from 330 €
Nov
from 275 €
Dec
from 371 €
Jan
Find prices
Feb
Find prices

Direct flights from Baltimore Washington International to San Diego

Alternative Baltimore Washington International to San Diego routes

Looking for the cheapest, fastest or easiest route from Baltimore Washington International to San Diego? You could fly into the following airports instead.

San Diego International

4km from central San Diego
ClosestCheapest
from 197 €
Search flights

McClellan-Palomar

48km from central San Diego
from 990 €
Search flights

Washington D.C. to San Diego: Flight information

The things to know before you go.
Cheapest flight found197 €
Cheapest month to flyApril
Average flight time5 hrs, 29 mins
Most popular airlineSouthwest Airlines
Average flights per week26

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

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Baltimore Washington International to San Diego is 197 €. 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 29 minutes is the average flight time from Baltimore Washington International to San Diego.
Southwest Airlines flies direct from Baltimore Washington International to San Diego.
As of March 2026, there are 26 flights per week flying from Baltimore Washington International to San Diego.
The cheapest month to fly from Baltimore Washington International to San Diego is usually April.
If you're flying from Baltimore Washington International Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from 197 €.
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 on Tuesday, 28 April 2026.
Yes – the average flight time is 5 hours and 29 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 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.
In March, the average temperature is usually around 14°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to San Diego.

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

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

  • San Diego is three hours behind Washington DC, where Baltimore/Wash International Thurgood Marshall Airport is located. San Diego runs on the UTC-7 timezone.

  • Baltimore/Wash International Thurgood Marshall Airport (BWI) to San Diego International Airport (SAN) is the most popular route, with 11 weekly departures to pick from. If you prefer a later start to the day, the last flight from BWI to SAN is with Southwest Airlines at 21:05. Choose the first departure with Southwest Airlines at 06:15 if you want to fly out earlier.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. That way, you won't have to rush to catch your BWI to San Diego flight.

  • Delays at check-in and security are likely if you're travelling during high season, so give yourself some extra breathing space. A good rule of thumb for peak periods? Get there up to four hours early for international flights and at least two hours for domestic departures.

  • You can book a direct Baltimore/Wash International Thurgood Marshall Airport to San Diego ticket. Start your journey at BWI and touch down at San Diego International Airport (SAN).

  • Southwest Airlines is a popular airline that operates direct flights from Baltimore/Wash International Thurgood Marshall Airport to San Diego.

  • Travelling from central Washington DC to BWI takes about 1 hour 30 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 40 kilometres in 50 minutes or so, depending on traffic conditions.

  • Want a hassle-free start to your holiday? Stay near BWI. Whether you're taking an early flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego or just don't want to be rushed, these hotels have you covered:

  • Of the departures from Baltimore/Wash International Thurgood Marshall Airport, 77.13% arrive on time at their destination.

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

  • 96 € is currently the best price for a one-way Baltimore/Wash International Thurgood Marshall Airport to San Diego flight. Return plane tickets start at 197 €. These prices may change based on demand.

  • To score cheap flights from BWI to San Diego, reserve your journey one month ahead of your departure date.

  • The best month for finding cheap Baltimore/Wash International Thurgood Marshall Airport to San Diego tickets is May. Use the 'Whole month' tool to compare flight prices, then choose the dates offering the lowest fares.

  • Save time searching for cheap flights from BWI to San Diego by creating a Price Alert. We'll send you an email or notification through the app when fares go down.

  • Save money on your flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego with the help of our filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is around 5 kilometres from central San Diego. If you're opting for a ride-share or a cab, the drive takes about 10 minutes.

  • If you're taking public transport, expect a journey time of around 20 minutes.

  • If you have a late flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and relaxing not long after at one of these hotels near SAN:

  • Pick up a San Diego International Airport rental car and discover San Diego and beyond with your own wheels. Thrifty, Dollar and Budget are well-known companies to choose from here.

  • For the lowest price, reserve your ride from San Diego International Airport about two weeks in advance of your flight from BWI to San Diego.

  • SAN is located at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • The centre of San Diego is about 56 kilometres from McClellan-Palomar Airport (CLD). After your flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego has landed and you've navigated your way to arrivals, the drive should be around 40 minutes.

  • If you travel by public transport, you'll get to the city centre in 2 hours 15 minutes or so.

  • Hang the 'Do not disturb' sign on your door and unwind at a hotel near CLD. Here are a few options where you can settle in after your BWI to San Diego flight:

  • Budget, Hertz and Avis make collecting a McClellan-Palomar Airport rental car simple. These companies are located in or around the terminal and will have you behind the wheel before you know it.

  • Get the vehicle you prefer, not just what's left, by reserving your ride from CLD before your arrival. You can also avoid paying extra, especially when demand is high.

Best time to go to San Diego

  • Before scheduling your flights from Baltimore/Wash International Thurgood Marshall Airport to San Diego, consider which time of year is best for you. High season in San Diego offers a bustling atmosphere and plenty of activities, while the low season means you'll get better deals on hotels and fewer crowds.

  • The warmest month in San Diego is August, with temperatures ranging between 17ºC (63ºF) and 28ºC (82ºF). Book your Baltimore/Wash International Thurgood Marshall Airport to San Diego plane ticket then if that's your ideal forecast.

  • Search for cheap tickets from BWI to San Diego in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 7ºC (45ºF) and 23ºC (73ºF) on average.

More about San Diego

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in San Diego right here. Browse these options as soon as you've booked your flight from Baltimore/Wash International Thurgood Marshall Airport to San Diego:

  • USS Midway Museum and San Diego Zoo are a couple of major attractions to put on your San Diego travel itinerary. Continue your sightseeing adventures at SeaWorld San Diego.

Explore more of United States

  • You've visited San Diego, now it's time to discover other parts of United States. Journey around 177 kilometres north-west to Los Angeles to tick off its must-visit sights. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you've got a jam-packed schedule ahead.

  • If you're interested in discovering another major stop in United States, consider Phoenix, about 483 kilometres east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are the start of reasons to visit.

Plan the rest of your trip from Washington D.C. to San Diego

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