How far is Baltimore from Washington DC?

Baltimore and Washington DC are 38 miles apart by the most direct highway route (I-95 South). Driving takes 50 minutes to just over an hour depending on traffic, which is heaviest during weekday rush hours (7–9 a.m. and 4–7 p.m.). Train travel via MARC Brunswick Line or Amtrak takes 30 to 90 minutes depending on which service you choose, making it a practical alternative to driving.

Getting there by car

I-95 South is the primary route from Baltimore to Washington DC, running directly through both cities. The 38-mile trip typically takes 50 minutes under light traffic conditions, but add 15 to 30 minutes during peak commute hours. Gas costs are minimal on this short drive; tolls apply only if you use the Baltimore Harbor Tunnel (heading southbound on I-95), which costs $4 for a standard vehicle as of 2024 (E-ZPass discount available). Parking in central DC averages $15 to $25 daily in commercial lots, compared to $10 to $15 in downtown Baltimore.

US Route 29 South offers an alternate inland route that bypasses the harbor tunnel but adds about 10 miles and 15 minutes to your trip; use this if you're coming from the northwest side of Baltimore or want to avoid tolls.

Getting there by train

The MARC Brunswick Line operates weekday commuter service from Baltimore's Penn Station to Union Station in Washington DC. Trains run roughly every 30 to 60 minutes during business hours, with the trip taking 60 to 75 minutes depending on the specific train and number of stops. A one-way ticket costs $9.00 peak ($7.00 off-peak) as of 2024. This option eliminates parking hassles and lets you work or rest during the journey.

Amtrak's Northeast Regional also connects Penn Station to Union Station, with a travel time of 90 minutes to 2 hours depending on your departure time. Amtrak tickets are significantly higher, typically $15 to $40 for a one-way trip, but service runs daily including weekends and evenings, whereas MARC primarily serves weekday commuters.

A third option is the MARC Penn Line, which runs from Baltimore's Penn Station to Union Station but takes a longer route through Maryland suburbs, adding 20 to 30 minutes compared to the Brunswick Line. Ticket prices are the same.

Comparing the three main options

Driving is fastest for spontaneous trips (no schedule constraints) and best if you're traveling with multiple people or need flexibility in DC for a full day. Train travel is most cost-effective for solo travelers who want to avoid parking fees and DC traffic. If you arrive by MARC, you're dropped at Union Station, already in the heart of downtown Washington near the Capitol and many major attractions, eliminating a second transportation step.

For weekend trips, the MARC schedule is limited or nonexistent, so you'll either drive or use Amtrak. Check MARC's schedule before planning a weekend visit.

Luggage and comfort

Amtrak allows two standard suitcases per passenger at no extra charge. MARC does not explicitly restrict luggage, but as a commuter rail service, busy morning trains may have limited overhead space. Driving gives you unlimited luggage capacity but requires managing parking.

Traffic patterns and timing strategy

Avoid I-95 between 7 and 9 a.m. and 4 and 7 p.m. on weekdays if driving. Mid-morning (10 a.m. to 12 p.m.) and early afternoon (1 to 3 p.m.) offer the smoothest conditions. If you must drive during rush hour, I-66 West near Leesburg or US Route 29 can shorten delays, though both add distance.

Train timing has fewer constraints. Evening Amtrak trains (after 6 p.m.) are often less crowded than midday service.

Staying overnight

If the drive feels long or you're doing a multi-day trip, Baltimore offers hotels at lower rates than Washington DC. Hotels in Baltimore's Inner Harbor average $120 to $180 per night, while comparable accommodations in DC start at $150 to $220. Some visitors stay in Baltimore and day-trip to DC via train, saving on lodging costs.

Returning to Baltimore from DC

Return trains operate on the same schedules and pricing as outbound service. If driving back to Baltimore after a late evening in DC, expect faster highway conditions after 8 p.m. but darker, more fatiguing driving. The return drive from Union Station to downtown Baltimore takes slightly longer (55 to 65 minutes) than the outbound trip due to I-95's traffic patterns.