Rome2Rio

How to get fromWashington to Diamond Barby plane, bus, bus (Flixbus, Greyhound), train (Amtrak), car, subway, or train

Find Transport to Diamond Bar

See all options

There are 8 ways to get from Washington to Diamond Bar by plane, bus, bus (Flixbus, Greyhound), train (Amtrak), car, subway, or train

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

  1. Fly Ronald Reagan Washington National Airport to Los Angeles International Airport, bus

    best
    1. Fly from Ronald Reagan Washington National Airport (DCA) to Los Angeles International Airport (LAX)plane plane DCA - LAX
    2. Take the bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Adminbus bus
    7h 33m
    $208–526

  2. Bus

    1. Take the bus from Washington Union Station to Atlanta Bus Stationbus bus
    2. Take the bus from Atlanta Bus Station to Houston Bus Stationbus bus
    3. Take the bus from Houston Bus Station to El Paso Bus Stationbus bus
    4. Take the bus from El Paso to El Montebus bus
    2d 12h
    $454–809

  3. Train via San Bernardino (Amtrak)

    1. Take the train from Rockville Amtrak to Chicago Union Stationtrain train Floridian
    2. Take the train from Chicago Union Station to San Bernardinotrain train Southwest Chief
    2d 15h
    $950–1,909

  4. Drive 2,593.4 mi

    1. Drive from Washington to Diamond Barcar car 2,593.4 mi
    42h 14m
    $474–684

  5. Subway to Washington Dulles International Airport, fly to Los Angeles International Airport, bus

    1. Take the subway from Farragut West, Blue/Orange/Silver Line Track 2 Platform to Washington Dulles International Airport, Silver Line Center Platformsubway subway
    2. Fly from Washington Dulles International Airport (IAD) to Los Angeles International Airport (LAX)plane plane IAD - LAX
    3. Take the bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Adminbus bus
    9h 18m
    $240–822

  6. Train to Baltimore-Washington International Airport, fly to Ontario International Airport

    1. Take the train from Washington Union Station to BWI Thurgood Marshalltrain train
    2. Fly from Baltimore-Washington International Airport (BWI) to Ontario International Airport (ONT)plane plane BWI - ONT
    10h 18m
    $245–1,553

  7. Train to Baltimore-Washington International Airport, fly to Los Angeles International Airport, bus

    1. Take the train from Washington Union Station to BWI Thurgood Marshalltrain train
    2. Fly from Baltimore-Washington International Airport (BWI) to Los Angeles International Airport (LAX)plane plane BWI - LAX
    3. Take the bus from Union Station Patsaouras Bus Plaza E to Cal Poly Pomona Adminbus bus
    9h 13m
    $240–1,214

  8. Train (Amtrak)

    1. Take the train from Washington Union Station to Chicago Union Stationtrain train
    2. Take the train from Chicago Union Station to Pomona Amtraktrain train
    3d 11h
    $1,104–2,305

Washington to Diamond Bar by bus

Calendar7Weekly Buses
Duration2d 12hAverage Duration
Ticket$454Cheapest Price
See schedules

Questions & Answers

Map of how to get from Washington to Diamond Bar.ExpandLaunch map view
  • Distance: 2,347.6 mi
  • Duration: 7h 33m

What companies run services between Washington, DC, USA and Diamond Bar, CA, USA?

You can take a bus from Washington Union Station to Grand Ave and Valley Blvd via Atlanta Bus Station, Houston Bus Station, El Paso Bus Station, El Paso, El Monte, and Valley Blvd and La Madera Ave E in around 2d 12h. Alternatively, you can take a subway from Farragut North, Red Line Center Platform to Cal Poly Pomona Admin via Rockville, Red Line Center Platform, Rockville Amtrak, Chicago Union Station, San Bernardino, San Bernardino Depot, Montclair, and Montclair Transit Center in around 2d 15h.

Airlines
Train operators
Bus operators

Want to know more about travelling around United States

Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.

Related travel guides

Need to know: Greyhound

Read the travel guideNeed to know: Greyhound

More Questions & Answers