O'Fallon
O'Fallon
Portland
Portland
Flight Driving

O'Fallon to Portland

Updated: 28 May 2026

The journey from O'Fallon to Portland covers approximately 2,000 miles. You can fly from St. Louis Lambert (STL) to Portland International (PDX) in about 4 hours. Driving involves taking I-70 West to I-84 West, crossing the Rockies and the Pacific Northwest. This is a scenic route that takes you through the heart of the American West.

Total Distance: 3,218 km driving, 2,700 km air distance.
Fastest Way
A direct flight from STL to PDX takes 4 hours, saving you over 26 hours of travel time.
Cheapest Way
Flying is often the most economical option when considering the high cost of fuel and overnight stays for a 30-hour drive.
Compare O'Fallon to Portland Routes
Flight
Direct
Driving
Direct
Duration 4 hours 30 hours
Avg Price $200 - $600 $400 - $700 in fuel
Operator Alaska Airlines Personal Vehicle
Route STL to PDX I-70 W to I-84 W
Tip PDX is well-connected to downtown Portland via the MAX light rail system. Be prepared for snow on mountain passes in the Rockies and Cascades during winter months.
Travel Tips
  • Public Transit
    Use the MAX light rail system to navigate the city; it is the fastest and most efficient way to travel.
  • Walking
    Portland is a very walkable city; wear comfortable walking shoes and be prepared for a lot of walking.
  • Reservations
    Book popular restaurants and attractions like the Japanese Garden tours well in advance.
  • Weather
    Portland can be very rainy in the winter and pleasant in the summer; pack accordingly.
  • Safety
    Be aware of your surroundings, especially in areas outside of the main tourist zones at night.
Safety Tips
  • Neighborhoods
    Be aware of your surroundings, especially in areas outside of the main tourist zones at night.
  • Emergency
    Keep a list of local emergency numbers and a physical map in your car for driving in the city.
  • Pedestrian Safety
    Be cautious when walking in busy areas; always use crosswalks and obey traffic signals.
  • Traffic
    Portland traffic is notoriously bad; use public transit whenever possible to avoid the stress of driving.
People Also Ask
  • Is there a train to Portland?
    Amtrak's Empire Builder runs through Portland, but you must get to a hub first.
  • What is the best airport?
    PDX is the primary international airport and is very close to downtown.
  • How long is the drive?
    It takes about 30 hours of driving time, usually split over three days.
  • Do I need a car?
    No, Portland has excellent public transit, but a car is helpful for exploring the surrounding nature.
  • Is the drive safe?
    Yes, the route is well-traveled, but be prepared for mountain passes and potential winter weather.
Quick Info
  • From O'Fallon, Missouri, United States
  • To Portland, Oregon, United States
  • Modes
Best Time to Travel

June to September for the most comfortable weather and the best outdoor activity conditions.

Things to Do in Portland
1
Washington Park
Explore this massive urban park featuring the International Rose Test Garden, the Japanese Garden, and the Oregon Zoo.
2
Powell's City of Books
Visit the world's largest independent bookstore, a must-see for any book lover.
3
Portland Art Museum
Discover world-class art collections in this historic museum in the heart of the city.
4
Forest Park
Enjoy outdoor activities like hiking and biking in this massive urban forest.
Tags
O'Fallon to Portland flights to PDX driving to Oregon from Missouri STL to PDX best way to travel to Portland road trip Missouri to Oregon Portland travel tips O'Fallon travel guide