BWI Long Term Parking B Map: 2026 Guide to Lot B

BWI Long Term Parking Lot B is one of two large surface lots at Baltimore/Washington International Thurgood Marshall Airport offering the lowest on-airport rate of $11 per day, per the Maryland Aviation Administration (checked October 2026). Searching for a BWI long term parking B map before your trip is smart: Lot B is a large surface lot west of the terminal, and knowing the layout saves real time on arrival and return. A free shuttle runs every 10–15 minutes between Lot B and the terminal, 24 hours a day. Compare off-airport BWI parking from about $6/day on Triply. Triply rates are for a 7-day stay booked ahead and change by date.

• Rate: $11/day, the cheapest on-airport option at BWI (checked October 2026)
• Shuttle: Free, runs every 10–15 minutes (every 25 minutes between 1–5 AM)
• Location: West side of the airport, accessed via MD Route 170 (Aviation Boulevard)
• Capacity: BWI's on-airport lots hold roughly 22,000 spaces combined across all facilities
• Payment: Cash, Visa, Mastercard, Amex, Discover, and contactless payment accepted
• Alternatives: Off-airport lots on Triply run about $6 to $8/day

Back to BWI Long Term Parking A: 2026 Rates, Lots & Tips | Complete BWI Airport Parking Guide

Where Is BWI Long Term Parking Lot B Located?

BWI Long Term Parking Lot B sits on the west side of the airport, south of Long Term Lot A. Both lots are off Aviation Boulevard (MD Route 170), which runs parallel to the terminal. Lot B is the farther of the two lots from the terminal entrance — plan for a shuttle ride rather than a walk. The Maryland Aviation Administration operates both Long Term lots as part of BWI's roughly 22,000-space on-airport parking system.

The lot is a large surface (uncovered) facility. There is no multi-story structure here. You park, lock your car, and head to a covered shuttle shelter to wait for the free bus. Signage along Aviation Boulevard directs you clearly to Lot B once you exit the main airport loop.

What Is the Layout of BWI Long Term Parking Lot B? (Map Guide)

The BWI long term parking B map is not published as an official interactive diagram on the airport's website, but here is what verified data and traveler reports show about the lot's layout. Lot B is divided into lettered or numbered sections, with shuttle shelter stops positioned at multiple points throughout the lot. Each shelter is labeled — note your shelter number when you park. This single habit saves significant stress when you return.

Key layout features to know:

• Entry/Exit: The main entrance is off Aviation Boulevard. Follow posted signs for Long Term Lot B specifically — do not follow signs for Lot A, which is a separate entry.
• Sections: The lot is divided into rows, typically labeled with letters or numbers on signage at the end of each row. Take a photo of your row marker.
• Shuttle shelters: Covered waiting areas are located at several points across the lot. Each has a shelter number or letter posted on the canopy. Write down or photograph your nearest shelter number before walking away from your car.
• Accessible spaces: ADA-designated accessible spaces are available within Lot B near shuttle shelters. These spaces are marked with standard blue accessible signage. For the closest accessible spaces to the terminal, the Hourly and Daily Garages are the official recommendation per MAA.
• Oversized vehicles: Large SUVs and pickup trucks can park in standard spaces. True oversized vehicles (RVs, vehicles with roof racks exceeding height limits) should check with BWI's parking authority before arriving.
• Real-time availability monitors: Electronic signs at the lot entrance show current availability. Lot B can fill during peak periods — holidays and summer weekends especially. If the lot shows full, the monitors will direct you to alternatives.

For the official lot map and current availability, visit BWI's Long Term Parking page. The airport also has smart parking guidance systems rolling out in 2026, which will make real-time space counts more visible throughout the lot.

How Much Does BWI Long Term Parking Lot B Cost?

BWI Long Term Parking costs $11 per day, per published Maryland Aviation Administration rates effective July 1, 2024 — the first rate increase since 2009. There is no separate pricing for Lot A versus Lot B; both lots charge the same daily rate.

At $11/day, Long Term Lot B is the most affordable on-airport option: about 21% cheaper than Express Parking ($14/day) and about 31% cheaper than the Daily Garage ($16/day). Payment methods accepted include cash, Visa, Mastercard, Amex, Discover, and contactless payment. There is currently no monthly rate program for individual travelers at BWI on-airport lots.

If you want to save even more on a longer trip, the off-airport lots Triply sells near BWI start at about $6/day (Doubletree Baltimore), about 44% less than Lot B, and the priciest runs about $8/day, still 24% less. Shuttle hours differ by lot, so see the comparison table below. For more on deals and discount codes, check our guide on BWI long term parking coupons and best deals for 2026.

How Does the Shuttle Service Work from Long Term Lot B to the Terminal?

The shuttle from BWI Long Term Lot B to the terminal is free and runs 24 hours a day, 7 days a week. Based on official airport data from the Maryland Aviation Administration, the shuttle runs every 10–15 minutes during regular hours and every 25 minutes between 1:00 AM and 5:00 AM.

Here is how the process works, step by step:

1. Park your car and note your row and the nearest labeled shuttle shelter number. Take a photo — this is critical for finding your car on return.
2. Walk to the nearest covered shuttle shelter within Lot B. Shelters are distributed across the lot so the walk is typically short.
3. Check the real-time arrival monitor at the shelter. Electronic displays show estimated shuttle arrival time. This system is being upgraded as part of BWI's 2026 parking technology improvements.
4. Board the shuttle when it arrives. The driver will assist with luggage if needed. Shuttles are accessible for travelers with mobility needs.
5. Ride to the terminal. The shuttle ride from Long Term Lot B to the BWI terminal is typically around 10 minutes, based on lot distance and traffic on Aviation Boulevard.
6. On return: Take the same shuttle back. Catch it from the designated Ground Transportation zone at the lower level of the terminal. Look for "Long Term Parking" signs.

For full details on shuttle timing throughout the day, our BWI long term parking shuttle hours guide covers pickup zones, late-night schedules, and tips for peak travel days.

How Does BWI Long Term Lot B Compare to Other BWI Parking Options?

Here is a side-by-side view of all on-airport BWI parking options alongside the five off-airport lots Triply sells near BWI (on-airport rates checked on bwiairport.com in October 2026).

The biggest takeaway: the five off-airport lots Triply sells near BWI cost about 24% to 44% less per day than BWI Long Term Lot B. Shuttle hours differ, though. Doubletree Baltimore, the Westin and the Sheraton run 24 hours, while Country Inn & Suites and Clarion have gaps in service, so check your flight time first. For a 7-day trip, Doubletree Baltimore comes to about $43 versus $77 in Lot B, a savings of about $34. For a broader look at your options, see our guide to all airport parking near BWI.

Is BWI Long Term Parking Lot B Safe and What Amenities Are Available?

BWI Long Term Lot B is a staffed, monitored facility operated by the Maryland Aviation Administration. Security features and amenities include:

• 24/7 staffing: Attendants are on-site around the clock
• Surveillance cameras: Lot B is covered by security camera systems throughout
• Emergency call stations: Intercom/call stations are posted within the lot for immediate assistance
• Accessible parking: ADA-designated spaces are available near shuttle shelters. For the closest accessible parking to the terminal building itself, MAA recommends the Hourly or Daily Garages.
• Well-lit environment: Lighting throughout the lot operates overnight
• Vehicle assistance: If you return to a dead battery or flat tire, contact the parking office. Attendants can direct you to roadside assistance resources.

One tip that many first-timers miss: take a photo of your license plate, your parking row number, and your nearest shuttle shelter sign before you leave. Recovery of your vehicle is dramatically easier with these three photos on your phone.

Tips for Parking in BWI Long Term Lot B: What First-Timers Need to Know

A few practical details make the difference between a smooth experience and a stressful one. Here is what first-time Lot B parkers should keep in mind.

• Arrive with extra time: Budget 30–40 minutes from when you enter the lot to when you reach the security checkpoint. That covers parking, walking to the shelter, waiting for the shuttle, the ride, and the walk to your terminal.
• Check availability before you leave home: During holidays, Lot B fills up. BWI posts real-time lot availability on its website and at electronic signs on arrival. If Lot B is full, the signs redirect you. Our BWI long term parking options guide covers what to do when lots are at capacity.
• Use TSA PreCheck if you have it: The shuttle from Lot B adds time before you even reach the checkpoint. TSA PreCheck significantly cuts security wait time and is worth it for frequent travelers.
• Plan for the new A/B Connector: BWI's $520 million Concourse A/B Connector opened January 9, 2026. This is the largest capital project in BWI history — 142,000 sq ft of new construction. Passengers no longer need to backtrack between Concourses A and B. This affects your walk time inside the terminal after the shuttle drops you off.
• Pay at exit: BWI's long term lots use a pay-on-exit system. Have your payment method ready — cash, credit card, or contactless payment all work.
• Off-peak is smoother: Early morning and late evening arrivals at the lot mean shorter shuttle waits and easier parking near a shelter.

How to Get to BWI Long Term Parking Lot B: Driving Directions

The primary access road to BWI Long Term Lot B is Aviation Boulevard (MD Route 170). Most drivers approach via Interstate 195, which connects directly to the airport from Interstate 95. Here is a step-by-step guide from the two most common approach directions.

From I-95 North or South (Baltimore / Washington)

1. Take Exit 47A onto I-195 East toward BWI Marshall Airport.
2. Follow I-195 to the airport. Watch for signs separating "Departures", "Arrivals", and "Parking".
3. Follow the "Parking" signs onto Aviation Boulevard (MD Route 170).
4. Stay on Aviation Boulevard. Signs for Long Term Parking Lot B appear on the right. Turn into the Lot B entrance as indicated.

From MD-295 (Baltimore-Washington Parkway)

1. Take the MD Route 170 / Aviation Boulevard exit toward BWI Airport.
2. Turn onto Aviation Boulevard heading toward the terminal.
3. Follow posted signs for Long Term Parking and then for Lot B specifically.

Before you leave, check real-time traffic on Waze — the I-195 corridor can back up during peak airport hours and rush periods. Arriving during heavy traffic can add 10–20 minutes to your approach. Build that buffer in before a morning flight.

Ready to Find the Best BWI Parking Rate Before Your Trip?

The BWI long term parking B map and layout covered above give you a solid plan for Lot B at $11/day. But the off-airport lots Triply sells near BWI run about $6 to $8/day, about 24% to 44% less per day than on-airport Long Term parking. For a 7-day trip, that is about $43 at Doubletree Baltimore versus $77 in Lot B. Compare off-airport BWI parking from about $6/day on Triply. Bookings come with free cancellation with a full refund up to 24 hours before check-in.

Compare BWI parking rates. The off-airport lots Triply sells near Baltimore/Washington International cost about 48% to 62% less per day than the airport's $16 Daily Garage.