BWI Long Term Parking B: 2026 Rates, Shuttle & Tips

BWI Long Term Parking Lot B is an open-air, self-park surface lot at Baltimore/Washington International Thurgood Marshall Airport that offers the lowest on-airport daily rate: $11 per day (verified June 2026), per the BWI official parking page. BWI long term parking B is ideal for trips of three days or longer, when savings over the Daily Garage or Express Parking add up fast. A free shuttle connects Lot B to the terminal every 10-15 minutes around the clock.

• Daily rate: $11/day — the lowest on-airport rate at BWI (verified June 2026)
• Shuttle frequency: Every 10-15 minutes (every 25 minutes between 1-5 AM)
• Best for: Trips of 3+ days where saving $3-$5/day over Express or Daily Garage matters
• Off-site lots start at $7.50/day — still cheaper, but Lot B keeps your car on airport property
• No reservation required, but pre-booking through a comparison tool can lock in the rate
• Surface lot only: No covered spaces — factor in weather for long stays

Compare BWI Long Term Parking Lot B rates against off-site lots starting at $7.50/day on Triply — see real prices in seconds.

What Is BWI Long Term Parking Lot B and Who Is It Best For?

Long Term Lot B is one of two on-airport long-term surface lots operated by the Maryland Aviation Administration (MAA), a unit of the Maryland Department of Transportation. It sits south of the terminal complex and is designed for multi-day stays. BWI's total on-airport parking capacity is approximately 22,000 spaces across all facilities, with the long-term lots holding the largest share.

Lot B suits travelers who want the security and convenience of on-airport parking without paying Daily Garage prices. If you're flying out of Concourse A, B, or C on Southwest or American Airlines — or out of Concourse D on Delta, United, JetBlue, or Spirit — the shuttle drops you right at the terminal. The lot works especially well for business travelers and families taking week-long trips where the math favors on-airport peace of mind over driving to an off-site lot.

It is not the right choice for trips under two days. For those, the BWI Hourly Garage or Daily Garage — which allows direct walking access to the terminal — saves time and may cost less overall. For a single overnight stay, Express Parking at $14/day is faster to exit.

How Much Does BWI Long Term Parking Lot B Cost?

BWI long term parking B costs $11 per day — the lowest flat daily rate of any on-airport facility at BWI Marshall Airport, per official Maryland Aviation Administration published rates. These rates took effect July 1, 2024, marking the first price increase since 2009, according to the MAA.

Compared to the Hourly Garage at $30/day max, Lot B saves you up to 63% for a multi-day trip. Compared to off-site options like The Parking Spot or FastPark 2 at $7.50/day, Lot B costs roughly $3.50 more per day — about $24.50 extra on a week-long trip. For a deeper look at how those savings stack up, see our guide on BWI long term parking costs and weekly savings.

Where Is Long Term Lot B at BWI Airport and How Do You Get There?

Long Term Lot B is accessed via Aviation Boulevard (MD Route 170), south of the main terminal complex. From Interstate 195 — the primary airport access road — take the Aviation Boulevard exit and follow signs for Long Term Parking. The lot entrance is clearly marked from MD Route 170.

From Interstate 95, merge onto I-195 east toward BWI and follow the same Aviation Boulevard signs. Travelers coming from Annapolis on Interstate 97 can connect to MD Route 176 (Dorsey Road) or MD Route 170 directly. The Baltimore-Washington Parkway (MD-295) also connects to I-195, making Lot B accessible from both Baltimore and Washington, D.C. Before you leave home, check real-time traffic on Waze — the I-195 corridor can back up during morning and evening peak hours.

Once inside the lot, look for numbered shuttle stop signs posted throughout. Note your shuttle stop number before you walk away from your car — this is how you tell the shuttle driver where to drop you on your return. Taking a photo of your spot and stop number is the single most useful habit in this lot.

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

The free BWI shuttle connects Long Term Lot B to the terminal continuously. Based on official BWI shuttle data, buses run every 10-15 minutes during normal hours and every 25 minutes between 1:00 AM and 5:00 AM. The shuttle is operated under the Maryland Aviation Administration and runs 24 hours a day, 365 days a year.

Here is what to expect step by step:

1. Park your car and note the numbered shuttle stop nearest to your space.
2. Walk to any marked shuttle shelter within the lot — shelters are covered and lit.
3. Board the next arriving shuttle. No ticket or payment needed — it's free.
4. The shuttle drops you at the lower level of the terminal, near the check-in counters.
5. On return, take any Long Term shuttle from the lower level pickup zone and give the driver your stop number.

Plan for the full shuttle process to take 15-20 minutes from your parking space to the terminal doors. Add that to your standard pre-flight buffer. The TSA recommends arriving at least 2 hours before domestic flights — review TSA security screening guidelines for the latest advice on how much time to budget at the checkpoint. If you have TSA PreCheck, security will move faster, but the shuttle time stays the same.

How Does BWI Long Term Lot B Compare to Lot A, Express, and Daily Parking?

Long Term Lots A and B are priced identically at $11/day, but they serve different sides of the airport. Lot A typically serves travelers flying from Concourses A, B, and C (mainly Southwest Airlines), while Lot B may be positioned differently depending on lot availability and signage. For a complete breakdown of Lot A's layout and access, see our BWI Long Term Parking A guide.

Here's how the on-airport options compare across the most important factors:

• Long Term Lot B ($11/day): Best daily rate on-airport. Open-air surface lot. Free shuttle every 10-15 min. Best for 3+ day trips.
• Express Parking ($14/day): Located near the Cell Phone Lot on Scott Road. Closer to the terminal than Lot B. Better for 1-2 day trips where speed matters.
• Daily Garage ($16/day): Covered, structured parking. Shuttle or walk to terminal. Best when weather protection is a priority.
• Hourly Garage ($30/day max): Direct walk to terminal. Best for drop-offs, pickups, or stays under 7-8 hours. Expensive for multi-day use.
• BWI Rail Station Garage ($12/day): Good if you're taking MARC or Amtrak to connect onward. Free shuttle to the terminal included.

For most travelers parking 3 days or more, Lot B's $11/day rate is the clear winner among on-airport options. The trade-off versus Express Parking is a slightly longer shuttle ride and an uncovered space — worth it for the savings on extended trips.

How Do You Reserve a Spot in BWI Long Term Parking Lot B?

BWI's on-airport Long Term lots do not currently require a reservation — you can drive in and pay on exit. However, pre-booking through a comparison platform can lock in today's rate and guarantee availability during peak travel periods like summer, Thanksgiving, and spring break.

To book in advance, use a parking search tool like Triply's BWI parking search to compare on-airport and off-site rates side by side before committing. This is especially useful if you're weighing BWI long term parking B against an off-site lot that might run a promotional rate during your travel dates. For coupon codes and current deals on BWI long-term parking, our BWI long term parking coupon guide tracks the latest discounts across on-site and off-site providers.

Payment at the Lot B exit accepts cash, Visa, Mastercard, American Express, Discover, and contactless payment, per official BWI payment information. You pay on exit — not on entry — so the total is calculated automatically based on your exact stay.

Tips for Parking in Long Term Lot B: What to Know Before You Go

These practical tips come from analyzing the most common traveler pain points at BWI's surface long-term lots.

• Photograph your shuttle stop number. The numbered stops are how drivers find you on return. A quick phone photo saves real headaches.
• Check the BWI parking availability dashboard before you leave home — especially during summer or holiday weekends when the lot can fill early.
• Arrive 15-20 minutes earlier than you normally would to account for shuttle time, especially during morning peaks on I-195.
• No covered spaces exist in Lot B. If you're parking for a week and rain or hail is forecast, the Daily Garage ($16/day) offers covered parking for $5 more per day.
• The $520 million Concourse A/B Connector opened January 9, 2026 — the largest capital project in BWI history. If you're flying Southwest and connecting between Concourses A and B, the new direct single-level route means faster post-shuttle movement through the terminal.
• Accessible parking spaces are available in all garages and lots. If ADA proximity to the terminal is a priority, the Hourly and Daily Garages offer the closest accessible spaces to the terminal entrance.
• Budget your full trip cost. A 7-day stay in Lot B costs $77 total. The same stay at FastPark & Relax off-site costs $56 — a $21 difference that some travelers happily pay for the peace of mind of on-airport parking.

Is BWI Long Term Lot B Right for Your Trip?

BWI long term parking B delivers a reliable, affordable on-airport option at $11/day — saving up to 63% compared to the Hourly Garage and making it the go-to choice for multi-day trips where you want your car on airport property. The free shuttle runs every 10-15 minutes, payment is flexible, and the lot operates 24/7 year-round under MAA management.

Off-site lots like The Parking Spot or FastPark 2 undercut Lot B at $7.50/day and still include free shuttles. So the honest answer is: if cost is your only priority, shop off-site first. But if you prefer on-airport security and a simple, no-reservation process, Lot B is the best value BWI has on its own property. Before you book, compare all BWI options — on-site and off-site — in one place.

Find the lowest BWI parking rate for your dates — compare Long Term Lot B and off-site lots from $7.50/day on Triply.

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