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

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BWI Long Term Lot B is one of the most affordable on-airport parking options at Baltimore/Washington International Thurgood Marshall Airport, costing $11 per day — the lowest daily rate of any on-site BWI facility. If you're searching for BWI airport parking B, you've found BWI's best-value on-site long-term option. The lot is served by a free shuttle that runs every 10–15 minutes to the terminal (every 25 minutes between 1–5 AM), per official BWI shuttle data. BWI's total on-airport capacity spans ~22,000 spaces across all facilities, and the Long Term Lots are the go-to choice for multi-day trips.

• Daily rate: $11/day, the lowest of any on-airport BWI parking option (checked October 2026)
• Shuttle frequency: Free shuttle every 10–15 minutes; every 25 minutes between 1–5 AM
• Access roads: Reachable via Interstate 195 (primary access), MD Route 170 (Aviation Boulevard), and I-95
• Payment: Cash, Visa, Mastercard, Amex, Discover, and contactless payment accepted
• Reservations: Triply does not sell Lot B, so check bwiairport.com for current options
• Off-airport alternative: the five lots Triply sells near BWI run about $6 to $8/day, about 24% to 44% less than Lot B

Compare off-airport BWI lots on Triply, from about $6/day, against Lot B's $11/day. Triply rates are for a 7-day stay booked ahead and change by date.

What Is BWI Long Term Lot B and Where Is It Located?

BWI Long Term Lot B is an open-air, self-park surface lot located on airport property at Baltimore/Washington International Thurgood Marshall Airport, operated under the Maryland Aviation Administration (MAA). It sits in the long-term parking zone near the terminal perimeter and is designed specifically for travelers parking multiple days. The lot is accessible from Interstate 195, the primary road into the airport, as well as MD Route 170 (Aviation Boulevard). Signs for Long Term Parking guide you directly from the I-195 exit.

Once you enter the lot, note the bus stop number posted near your parking space — this is essential for finding your car when you return. The official BWI website emphasizes writing it down before walking to the shuttle. Long Term Lot B is an uncovered, surface-level facility, so plan for weather exposure. Vehicle height restrictions common to garages do not apply here, making it suitable for trucks, SUVs, and larger vehicles.

How Much Does BWI Airport Parking B Cost? (2026 Rates)

BWI Long Term Lot B costs $11 per day, per the Maryland Aviation Administration's current published rates (checked on bwiairport.com in October 2026). These rates took effect on July 1, 2024, the first increase since 2009. Below is a full comparison of all on-airport BWI parking options so you can see exactly how Lot B stacks up.

At $11/day, Long Term Lot B is 31% cheaper than the Daily Garage and the lowest-cost on-airport option available. For a 7-day trip, that's $77 total at Lot B versus $112 at the Daily Garage — a savings of $35. According to the MAA's official parking page, these rates apply to all BWI Long Term Lots.

How Does the Shuttle Service Work at BWI Long Term Lot B?

The free BWI shuttle picks you up directly from Long Term Lot B and drops you at the terminal. Shuttles run every 10–15 minutes, 24 hours a day, and every 25 minutes between 1–5 AM, according to official BWI shuttle data. The ride to the terminal takes just a few minutes.

Here's how the shuttle process works, step by step:

1. Park your car and locate the bus stop number sign near your space. Write it down — you'll need it on return.
2. Walk to the nearest shuttle pickup point within the lot.
3. Board the free shuttle. Drivers assist with luggage.
4. The shuttle drops you at the terminal lower level for departures.
5. On return, take the same shuttle from the terminal back to your bus stop in Lot B.

The shuttle is free for all Long Term Lot parkers — no ticket required to board. For early morning or late-night flights, factor in the reduced frequency (every 25 minutes between 1–5 AM) when planning your arrival at the lot. Building in an extra 20–30 minutes before early flights is smart. For more details on all BWI shuttle operations, see the official BWI shuttle information page.

BWI Airport Parking B vs. Other BWI Options: Which Is Best for You?

BWI Long Term Lot B is the best on-airport value for trips of three or more days. But depending on your needs, another option might suit you better. Here's a quick breakdown:

• Lot B ($11/day): Best for long trips. Open-air, no height limit, free shuttle. Great for SUVs and trucks.
• Express Parking ($14/day): Slightly pricier, located near the Cell Phone Lot on Scott Road. Good for 1–3 day trips.
• Daily Garage ($16/day): Covered parking, closer to the terminal. Best if weather protection matters to you.
• Hourly Garage ($30/day max): Only makes sense for very short stays under a few hours.
• BWI Rail Station Garage ($12/day): A solid option if you're combining parking with MARC or Amtrak travel.

If you want to dig deeper into hourly options and short-stay comparisons, the BWI airport parking hourly guide covers those in detail. For a full picture of all rates across every facility, the Baltimore Washington Airport parking rates guide lays it all out side by side.

Also worth mentioning: BWI does not currently offer valet parking. If you need covered parking without a shuttle, the Daily Garage is your best bet on-site.

How to Reserve a Spot in BWI Long Term Lot B in Advance

Reserving ahead is a good idea around holidays, when BWI's long-term lots can fill up. The airport's parking pages don't show a reservation option for Lot B that we could confirm, so check bwiairport.com before you plan around one. Triply does not sell BWI Long Term Lot B or any other on-airport parking. What Triply does sell is five off-airport lots near BWI, booked ahead with free cancellation with a full refund up to 24 hours before check-in.

To book an off-airport BWI lot on Triply instead:

1. Open the Triply BWI search and enter your arrival and departure dates.
2. Compare the five lots by price, distance and shuttle hours.
3. Pick your lot and complete the booking.
4. Save your confirmation and follow the lot's check-in instructions on arrival.

The Maryland Aviation Administration is rolling out smart parking guidance systems and enhanced payment technology across BWI lots. This will make it easier to check availability before you drive. For now, booking early is the safest move. If you want the smoothest experience, check the BWI airport parking booking guide for a full walkthrough of the reservation process.

Tips for Saving Money on BWI Long Term Parking

Even at $11/day, there are ways to trim your BWI parking costs further. Travelers frequently report significant savings by combining a few simple strategies.

• Book early: booking an off-airport lot ahead holds your space at the rate you booked, with free cancellation with a full refund up to 24 hours before check-in.
• Check coupons and promo codes: Discounts are sometimes available through AAA, credit card portals, or dedicated coupon pages. See the BWI long term parking coupon guide for current deals.
• Compare off-airport lots: The five lots Triply sells near BWI run about $6 to $8/day, about 24% to 44% less than Lot B. Check each lot's shuttle hours against your flight time.
• Use TSA PreCheck: Not a parking tip, but TSA PreCheck means you can arrive later and spend less time worrying about security lines, which changes your parking duration calculation.
• Avoid peak holidays: If your dates are flexible, parking is easier to find outside Thanksgiving, spring break, and summer peak weeks.

What to Know Before You Park: Rules and Restrictions for BWI Lot B

BWI Long Term Lot B is a surface lot with no covered spaces and no height restrictions — unlike the garages. This makes it the right choice for oversized vehicles. Accessible parking spaces are available in Lot B, as they are across all BWI lots, though the closest ADA spaces to the terminal are in the Hourly and Daily Garages. For full details on accessible parking at BWI, see the BWI airport handicapped parking guide.

Payment at the exit accepts cash, Visa, Mastercard, American Express, Discover, and contactless payment. EV charging is available at BWI, though primarily concentrated in the garages rather than surface lots — confirm availability via the official airport page before relying on it for Lot B specifically. The lot operates 24 hours a day, 7 days a week. Security lighting and surveillance are standard across BWI's managed facilities.

The $520 million Concourse A/B Connector project — the largest capital project in BWI history — opened on January 9, 2026. It does not affect parking directly, but the improved terminal flow and new baggage handling system (now processing 3,500 bags/hour, up from 2,100) means faster connection times once you arrive. That's less time rushing after your shuttle drops you off.

Off-Airport Alternatives to BWI Long Term Lot B: Are They Worth It?

Off-airport lots near BWI undercut on-site rates. The five off-airport lots Triply sells run about $6 to $8/day, about 24% to 44% less than BWI Long Term Lot B's $11/day. Here's how they compare:

Doubletree Baltimore (890 Elkridge Landing Rd) is the cheapest at about $6/day, and its shuttle runs 24 hours a day. Register your car at the front desk for a dashboard tag. The Westin (1110 Old Elkridge Landing Rd) and Sheraton Hotel (1100 Old Elkridge Landing Rd) are next-door neighbors that both list a free shuttle with online booking, 24 hours, every 30 minutes, and neither requires a hotel stay. Country Inn & Suites is the closest at 1.7 miles but has no shuttle from noon to 4 PM or midnight to 4:30 AM, and Clarion Hotel BWI North has no shuttle from 10 AM to 5 PM or 11 PM to 4 AM. For a deeper look at your options, the airport parking near BWI guide has more detail.

The trade-off with off-airport lots is leaving the MAA-managed system, and not every shuttle runs around the clock, so check your flight time against each lot's hours. Bookings on Triply come with free cancellation with a full refund up to 24 hours before check-in. For a 7-day trip, Doubletree Baltimore costs about $43 versus $77 at Lot B, a savings of about $34. Even a 7-night checkout, which bills 8 days, comes to $49.27, still well below a week in Lot B.

Ready to find your best BWI airport parking B rate? Compare the five off-airport BWI lots on Triply, from about $6/day, with free cancellation with a full refund up to 24 hours before check-in.

Compare BWI parking rates. Off-airport lots Triply sells near Baltimore/Washington International cost about 24% to 44% less per day than the $11/day Long Term lots and about 48% to 62% less than the $16/day Daily Garage.