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

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There are 7 ways to get from Portland to Diamond Bar by plane, bus, bus (Flixbus, Greyhound), train (Amtrak), car, 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 to Ontario International Airport, line 482 bus

    best
    1. Fly from Portland International Airport (PDX) to Ontario International Airport (ONT)planePDX - ONT
    2. Take the bus from Pomona Transit Center to Diamond Bar Blvd and Sunset Crossing Rdbus
    5h 30m
    $126–611

  2. Fly to Long Beach Airport, line 266 bus, line 577 bus, line 707 bus

    cheapest
    1. Fly from Portland International Airport (PDX) to Long Beach Airport (LGB)planePDX - LGB
    2. Take the bus from Del Amo / Lakewood to Lakewood Blvd Stationbus
    3. Take the bus from Norwalk Station to El Monte Station - Lower Levelbus
    4. Take the bus from El Monte Station Upper Level to Cal Poly Pomona Adminbus
    7h 44m
    $110–517

  3. Bus

    1. Take the bus from Portland Curbside Bus Stop to Sacramento Bus StationbusFlixBus N2111
    2. Take the bus from Sacramento Bus Station to Los Angeles Union StationbusGreyhound US0810 / ...
    22h 24m
    $119–325

  4. Train (Amtrak)

    1. Take the train from Portland to Los AngelestrainCoast Starlight
    33h 19m
    $156–314

  5. Drive 989.4 mi

    1. Drive from Portland to Diamond Barcar989.4 mi
    16h 31m
    $181–261

  6. Fly to Los Angeles International Airport, bus

    1. Fly from Portland International Airport (PDX) to Los Angeles International Airport (LAX)planePDX - LAX
    2. Take the bus from Harbor Transitway / Harbor Fwy Station to El Monte Station - Upper Levelbus
    6h 21m
    $137–345

  7. Fly to Burbank Bob Hope Airport, train, line 190 bus

    1. Fly from Portland International Airport (PDX) to Burbank Bob Hope Airport (BUR)planePDX - BUR
    2. Take the train from L.A. Union Station to Baldwin Parktrain
    3. Take the bus from Ramona Blvd and Bogart Ave E to Temple Ave and University Drbus
    7h 49m
    $194–354

Portland to Diamond Bar by bus

Calendar14Weekly Buses
Duration22h 24mAverage Duration
Ticket$119Cheapest Price
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Questions & Answers

What companies run services between Portland, OR, USA and Diamond Bar, CA, USA?

You can take a bus from Portland Curbside Bus Stop to Cal Poly Pomona Admin via Sacramento Bus Station, Los Angeles Union Station, Cesar Chavez Transit Pavilion, Cal State La Transit Center, and Cal State LA E in around 22h 24m. Alternatively, Amtrak operates a train from Portland to Los Angeles once daily. Tickets cost $150–310 and the journey takes 30h 49m.

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