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

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There are 7 ways to get from Portland to Diamond Bar by plane, bus, bus (Flixbus, Greyhound), train (Amtrak), or car

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)plane plane PDX - ONT
    2. Take the bus from Pomona Transit Center to Diamond Bar Blvd and Sunset Crossing Rdbus bus
    5h 32m
    $156–811

  2. Fly to Los Angeles International Airport, bus

    cheapest
    1. Fly from Portland International Airport (PDX) to Los Angeles International Airport (LAX)plane plane PDX - LAX
    2. Take the bus from Harbor Transitway / Harbor Fwy Station to El Monte Station - Upper Levelbus bus
    6h 23m
    $77–415

  3. Bus

    1. Take the bus from Portland Curbside Bus Stop to Sacramento Bus Stationbus bus FlixBus N2111
    2. Take the bus from Sacramento Bus Station to Los Angeles Union Stationbus bus Greyhound US0810 / ...
    22h 24m
    $108–225

  4. Train (Amtrak)

    1. Take the train from Portland to Los Angelestrain train Coast Starlight
    33h 19m
    $145–237

  5. Drive 989.4 mi

    1. Drive from Portland to Diamond Barcar car 989.4 mi
    16h 38m
    $181–261

  6. Fly to Burbank Bob Hope Airport, line 106 bus, line 707 bus

    1. Fly from Portland International Airport (PDX) to Burbank Bob Hope Airport (BUR)plane plane PDX - BUR
    2. Take the bus from Cesar Chavez Transit Pavilion to Cal State La Transit Centerbus bus
    3. Take the bus from Cal State LA E to Cal Poly Pomona Adminbus bus
    7h 9m
    $121–671

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

    1. Fly from Portland International Airport (PDX) to Long Beach Airport (LGB)plane plane PDX - LGB
    2. Take the bus from Del Amo / Lakewood to Lakewood Blvd Stationbus bus
    3. Take the bus from Norwalk Station to El Monte Station - Lower Levelbus bus
    4. Take the bus from El Monte Station Upper Level to Cal Poly Pomona Adminbus bus
    7h 43m
    $105–567

Portland to Diamond Bar by bus

Calendar14Weekly Buses
Duration22h 24mAverage Duration
Ticket$108Cheapest 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 $140–230 and the journey takes 30h 49m.

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