$180 Cheap Flights from San Luis Obispo (SBP) to Baltimore (BWI)

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Find available prices by choosing your travel dates.

Cheap Flights from San Luis Obispo to Baltimore (SBP-BWI)

Prices were available within the past 7 days and start at $180 for one-way flights and $359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
American Airlines
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Alaska Airlines
Hawaiian Airlines
Flights from San Luis Obispo (SBP) to Baltimore (BWI)
Origin airport
San Luis Obispo County Regional
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, United
Roundtrip price
$358
Distance
2411 mi

San Luis Obispo to Baltimore Flights

The cheapest times to fly from San Luis Obispo to Baltimore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Luis Obispo to Baltimore are during the month of September. You can find some of the cheapest flights from San Luis Obispo to Baltimore with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Luis Obispo to Baltimore

Sunday is one of the best days to book for cheap flights from San Luis Obispo to Baltimore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Luis Obispo to Baltimore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Luis Obispo to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $180 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Luis Obispo to Baltimore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Luis Obispo to Baltimore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from SBP to BWI last minute?
When it comes to booking your flights, being prepared pays dividends. While you may be able to find a last-minute deal on a McChesney Field to BWI Marshall flight, prices usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international journeys it’s between three and four months.
What airports do you fly into for Baltimore from San Luis Obispo?
From San Luis Obispo, you can reach Baltimore through Baltimore Washington Intl. Thurgood Marshall Airport (BWI), Ronald Reagan Washington National Airport (DCA) and Washington Dulles Intl. Airport (IAD). Do some research into which airport works best for you before you make a decision. If you decide on Baltimore Washington Intl. Thurgood Marshall Airport (BWI), it’s roughly 8 mi southwest of the center of the city. Use the cash you save when booking your ticket with Expedia to uncover the city’s awesome attractions, such as Oriole Park at Camden Yards and M&T Bank Stadium.
Can I change the date of my flight from San Luis Obispo County Regional Airport (SBP) to BWI Marshall?
We know plans can get upended, so Expedia is here to help make amending your journey easy. To start, access your McChesney Field to BWI Airport itinerary through the Expedia Trips portal and browse the fare conditions and rules about what changes you can make. If you booked your airfare in the last 24 hours, some airlines will allow you to cancel for free and book new flights. If you bought your ticket more than 24 hours ago, contact us via our Customer Service portal to run through your options.

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*Available to One Key members.