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

Find Transport to Thornton

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There are 6 ways to get from Portland to Thornton by plane, bus (Flixbus, Greyhound), bus, train, car, or train (Amtrak)

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 from Portland International Airport

    best
    1. Fly from Portland International Airport (PDX) to Denver (DEN)plane plane PDX - DEN
    5h 27m
    $166–816
  2. Bus

    cheapest
    1. Take the bus from Portland Curbside Bus Stop to Sacramento Bus Stationbus bus
    2. Take the bus from Sacramento Bus Station to Sparks Transit Centerbus bus
    3. Take the bus from Sparks Transit Center to Denver Union Stationbus bus
    38h 25m
    $147–376
  3. Bus, train

    1. Take the bus from Portland Union Station to Bend Hawthorne Stationbus bus
    2. Take the bus from Bend Hawthorne Station to Klamath Falls Amtrak Stationbus bus
    3. Take the bus from Greyhound Connection To Medford Via The Shuttle Klamath Falls + Amtrak Klamath Falls Rail Station to Corner Of Main And West Fifth Avebus bus
    4. Take the bus from Corner Of Main And West Fifth Ave to Amtrak Renobus bus
    5. Take the train from Reno to Denvertrain train
    43h 58m
    $192–428
  4. Drive 1,214.8 mi

    1. Drive from Portland to Thorntoncar car 1,214.8 mi
    19h 27m
    $222–321
  5. Train to Mahlon Sweet Field Airport, fly

    1. Take the train from Portland to Eugenetrain train
    2. Fly from Mahlon Sweet Field Airport (EUG) to Denver (DEN)plane plane EUG - DEN
    7h 51m
    $262–1,191
  6. Train (Amtrak)

    1. Take the train from Portland to Sacramentotrain train Coast Starlight
    2. Take the train from Sacramento to Denvertrain train California Zephyr
    2d
    $208–1,306

Portland to Thornton by bus

Calendar7Weekly Buses
Duration38h 25mAverage Duration
Ticket$147Cheapest Price
See schedules

Questions & Answers

What companies run services between Portland, OR, USA and Thornton, CO, USA?

Alaska Airlines, Inc., Frontier Airlines, and three other airlines fly from Portland International Airport (PDX) to Denver (DEN) every 2 hours. Alternatively, you can take a bus from Portland Curbside Bus Stop to Thornton PnR Gate B via Sacramento Bus Station, Sparks Transit Center, Denver Union Station, and Union Station Gate B15 in around 38h 25m.

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Train operators
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