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

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There are 7 ways to get from Seattle to Diamond Bar by tram, 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. Tram to Seattle-Tacoma International Airport, fly to Ontario International Airport, line 482 bus

    best
    1. Take the tram from Pioneer Square to SeaTac/Airporttram tram
    2. Fly from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)plane plane SEA - ONT
    3. Take the bus from Pomona Transit Center to Diamond Bar Blvd and Sunset Crossing Rdbus bus
    6h 16m
    $109–564

  2. Tram to Seattle-Tacoma International Airport, fly to Los Angeles International Airport, line 74 bus, line 707 bus

    cheapest
    1. Take the tram from Pioneer Square to SeaTac/Airporttram tram
    2. Fly from Seattle-Tacoma International Airport (SEA) to Los Angeles International Airport (LAX)plane plane SEA - LAX
    3. Take the bus from Cesar Chavez Transit Pavilion to Cal State La Transit Centerbus bus
    4. Take the bus from Cal State LA E to Cal Poly Pomona Adminbus bus
    7h 8m
    $75–327

  3. Bus

    1. Take the bus from Seattle Bus Station to Sacramento Bus Stationbus bus FlixBus N2111
    2. Take the bus from Sacramento Bus Station to Los Angeles Union Stationbus bus Greyhound US0810 / ...
    27h 4m
    $162–376

  4. Train (Amtrak)

    1. Take the train from Seattle to Los Angelestrain train Coast Starlight
    37h 47m
    $374–816

  5. Drive 1,161.9 mi

    1. Drive from Seattle to Diamond Barcar car 1,161.9 mi
    19h 37m
    $212–307

  6. Fly Paine Field County Airport to Los Angeles International Airport, line 74 bus, line 707 bus

    1. Fly from Paine Field County Airport (PAE) to Los Angeles International Airport (LAX)plane plane PAE - LAX
    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 14m
    $87–419

  7. Tram to Seattle-Tacoma International Airport, fly to Burbank Bob Hope Airport, line 74 bus, line 707 bus

    1. Take the tram from Pioneer Square to SeaTac/Airporttram tram
    2. Fly from Seattle-Tacoma International Airport (SEA) to Burbank Bob Hope Airport (BUR)plane plane SEA - BUR
    3. Take the bus from Cesar Chavez Transit Pavilion to Cal State La Transit Centerbus bus
    4. Take the bus from Cal State LA E to Cal Poly Pomona Adminbus bus
    7h 53m
    $109–504

Seattle to Diamond Bar by bus

Calendar14Weekly Buses
Duration27h 4mAverage Duration
Ticket$162Cheapest Price
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Questions & Answers

What companies run services between Seattle, WA, USA and Diamond Bar, CA, USA?

You can take a bus from Seattle Bus Station 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 27h 4m. Alternatively, Amtrak operates a train from Seattle to Los Angeles once daily. Tickets cost $370–850 and the journey takes 35h 16m.

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