BWI Airport Code: IATA, Location & Washington D.C. Travel Guide

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Baltimore · Maryland · D.C. Area

BWI decoded: Airport code, location, and D.C. travel guide

Find exactly what the airport code BWI stands for, where it’s located, and how to navigate Southwest hubs, MARC trains to D.C., rideshare pickups, and parking.

Quick answer: BWI is the three-letter IATA airport code for Baltimore/Washington International Thurgood Marshall Airport. The ICAO abbreviation is KBWI. It is located in Maryland but serves as a major hub for the entire Washington D.C. metropolitan area.
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Independent Guide: This is a traveler’s resource and is not affiliated with the Maryland Aviation Administration, BWI Airport, TSA, or Southwest Airlines. Verify live gates, TSA waits, and parking directly with the official airport sources on travel day.
Same-day command center

Check these official live pages before leaving

Use this guide to plan your trip, but always check official live data before you head to the airport. BWI is notoriously busy during government travel days and holidays.

Immediate Code Answer

What does airport code BWI stand for, and what city is it in?

The 3-letter airport code BWI stands for Baltimore/Washington International (officially named Baltimore/Washington International Thurgood Marshall Airport). In aviation flight planning, its ICAO code is KBWI, and its US FAA identifier is also BWI.

IATA / PassengerBWI

Used on your airline tickets and baggage tags.

ICAOKBWI

Used by pilots and aviation systems.

FAA IdentifierBWI

US domestic facility identifier.

Airport code BWI is what city?

The physical location of BWI is in Linthicum, Maryland, an unincorporated community in Anne Arundel County. However, for travel and booking purposes, it is considered the primary airport for Baltimore, MD, and serves as one of the three major airports for the Washington D.C. metropolitan area (alongside DCA and IAD).

D.C. Location Confusion: If you are flying into “Washington D.C.” and your ticket says BWI, you are landing in Maryland, about 30 miles northeast of downtown D.C. You will need to take a train or a ~45-minute car ride to reach the Capitol.
Verify Location Officially Open the official BWI Contact page ↗. Next step: Use the official address (7050 Friendship Rd, Baltimore, MD 21240) in your GPS to navigate directly to the passenger terminal.
Hard-to-find traveler answers

Crucial BWI facts to prevent travel day mistakes

Priority Help
01

A/B is essentially one massive concourse

Concourses A and B are combined behind a single, enormous TSA checkpoint. This is the primary domain of Southwest Airlines.

02

The MARC train requires a shuttle

The airport train station is not inside the terminal. You must take a free airport shuttle bus (about 10 mins) from the lower level to reach the MARC/Amtrak station.

03

Rideshare pickup is on the Upper Level

Unlike many airports that push Uber/Lyft to a garage, BWI app pickups occur on the Upper Level (Departures) curb. Do not wait at Baggage Claim.

Interactive traveler tools

Build a practical BWI travel plan

These tools calculate planning guidance locally on your device. Always cross-reference with official airline requirements and Maryland traffic conditions.

Airline Concourse Helper

Select your airline to find the general concourse assignment.

D.C. Transit Chooser

Find the best way to get from BWI to Washington D.C.

Airport Navigation

BWI Terminals, Concourses, and Security Checkpoints

BWI operates out of a single large horseshoe-shaped Main Terminal building, broken down into five concourses: A, B, C, D, and E.

Concourse Primary Airlines Details
A & B Southwest Combined behind one massive security checkpoint. Heaviest foot traffic in the airport.
C American, Southwest Connected securely to A/B, meaning you can walk between A, B, and C without exiting security.
D Delta, United, Spirit, JetBlue Has its own dedicated security checkpoint. Connected to Concourse E post-security.
E (International) British Airways, Condor, Icelandair Handles international arrivals with CBP processing. Also handles some domestic overflow.
Security Walking Trap: If you enter the A/B/C security checkpoint, you cannot walk securely to D or E. You will have to exit, walk through the public ticketing area, and go through TSA again. Always check your exact gate before clearing security.
Verify your terminal footprint Open the official BWI Terminal Map ↗. Next step: Use the interactive map to locate your airline’s ticketing counter, which dictates the nearest security checkpoint you should use.
D.C. & Baltimore Connections

How to get from BWI to Washington D.C. or Baltimore

Because the “airport code BWI is what city” question relies heavily on its dual-city nature, knowing the regional transit is crucial.

MARC

MARC Train (To D.C. & Baltimore)

The MARC Penn Line is the cheapest and most popular commuter route to Washington Union Station ($9) and Baltimore Penn Station. Catch the free airport shuttle outside baggage claim (Lower Level) to the BWI Marshall Rail Station.

L-RAIL

MTA Light Rail (To Baltimore Only)

The Light Rail station is located immediately outside the Lower Level of the terminal, near Concourse E. It costs roughly $2.00 and goes straight to downtown Baltimore and the Inner Harbor. It does not go to D.C.

Check train schedules Open the official Maryland Transit Administration MARC page ↗. Next step: Select the “Penn Line” and check the timetable for Southbound (towards Washington) or Northbound (towards Baltimore). Note that weekend service is limited compared to weekdays.
App Rides & Taxis

Where is the Uber/Lyft pickup at BWI?

Unlike many major airports that force rideshares into parking garages, BWI handles app pickups directly at the terminal curb—but on the Upper Level (Departures).

  1. 1
    Collect Baggage on Lower Level

    Grab your checked bags at the carousel first. Do not request your ride yet.

  2. 2
    Take Escalator/Elevator to Upper Level

    Head up one floor to the Ticketing/Departures level.

  3. 3
    Exit to the Curb and Find Your Zone

    Follow app instructions to your specific numbered door or zone. Taxis, conversely, are picked up on the Lower Level outside baggage claim.

Confirm official ground transport rules Open the official BWI App-Based Ride page ↗. Next step: Check for any active construction alerts that may have temporarily relocated the pickup zones.
Parking Guide

BWI Parking Rates and Lot Breakdown

BWI offers over 10,000 parking spaces. The official lots range from premium hourly garages to massive long-term shuttle lots.

Parking Type Typical Max Rate Best For
Hourly Garage $22/day (or $4/hr) Meeting passengers; connected directly to the terminal via skybridges.
Daily Garage $12/day Covered parking; frequent free shuttle to terminal.
Express Parking $10/day Trunk-to-terminal shuttle service.
Long Term A & B $8/day Budget, multi-day trips. Requires shuttle bus.
Cell Phone Lot: Waiting for a passenger? Use the free Cell Phone Lot located on Scott Drive (just off Aviation Blvd). Wait there until your passenger is standing at the curb with their bags.
Check parking space availability Open the official BWI Parking dashboard ↗. Next step: Look at the live capacity meters for the Daily and Long Term lots before you leave your house.
Search questions answered

FAQs about airport code BWI & Travel

What does airport code BWI stand for?
The airport abbreviation BWI stands for Baltimore/Washington International (officially Thurgood Marshall Airport).
Airport code BWI is what city?
BWI is physically located in Linthicum, Maryland. It primarily serves Baltimore, Maryland, and the Washington D.C. metropolitan area.
What is the 3 letter airport code for Baltimore?
The 3-letter IATA airport code for Baltimore is BWI.
Is the US airport code BWI in Washington D.C.?
No, BWI is located in Maryland, about 30 miles from central Washington D.C., though it is heavily used as a D.C. regional airport alongside DCA and IAD.
What is the IATA airport code for BWI?
The IATA airport code is exactly BWI. The ICAO code used by aviation systems is KBWI.
How do I get from BWI to Washington D.C.?
The most popular and cost-effective method is taking the free airport shuttle to the BWI Marshall Rail Station, then riding the MARC Penn Line train to Washington Union Station.
Does the Baltimore Light Rail go to BWI?
Yes. The MTA Light Rail has a station directly adjacent to Concourse E on the lower level, providing direct access to downtown Baltimore.
Where is Southwest Airlines located at BWI?
Southwest Airlines operates a massive hub at BWI, utilizing Concourses A and B, as well as parts of Concourse C.
Is there a cell phone lot at BWI?
Yes, the free BWI Cell Phone Lot is located on Scott Drive, just off the airport ring road. You must remain with your vehicle while waiting for arriving passengers.
Editorial Transparency

Official sources and verification

This guide prioritizes data from the Maryland Aviation Administration, BWI Airport, MTA Maryland, and TSA. Links provided are direct to official tools to ensure you have real-time information.

BWI Airport Authority
Terminal maps, live flights, and parking capacity.
MTA Maryland
MARC Train and Light Rail schedules and fares.
Fact Check: Data audited against current 2026 operations. Rideshare pickup zones and concourse airline alignments are verified to be accurate, but operational shifts can occur. Always verify via the official links before departure.