Cheap Flights from Portland to St. Louis

Popular airlines from Portland International Airport (PDX) to St. Louis Lambert Intl. Airport (STL)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Find the cheapest month to fly from Portland (PDX) to St. Louis (STL)

October is typically the cheapest month to fly

From S$173 - S$446 per traveller.

Frequently asked questions

How much is a flight from PDX Airport to Lambert-St. Louis Intl. Airport (STL)?
The lowest price advertised for a round-trip journey from Portland Intl. Airport (PDX) to STL is . But you better move fast. This figure is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PDX Airport to Lambert-St. Louis Intl. Airport (STL)?
Every airline has its own set of terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.
How do I find cheap flights from PDX Airport to STL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PDX Airport to St. Louis Lambert International Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PDX Airport to St. Louis Lambert International Airport?
The flight distance between Portland Airport and Lambert-St. Louis Intl. Airport (STL) is 2,700 kilometres. Sneak in a nap or make a start on the latest bestseller and the journey will whiz by.
Which airlines fly direct from PDX to Lambert-St. Louis Intl. Airport (STL)?
If you want to fly straight from PDX to Lambert Field, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.
Are PDX to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally pick up a bargain, with some of the cheapest airfares from PDX to Lambert Field surfacing a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines advertise prices so far in advance.

Travel information

Travel information

Origin airport
Portland Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
2725 km
Average flight time
3 hours 45 mins

Book with confidence

Book with confidence

Perfect flights from Portland to St. Louis

Your Journey from Portland to St. Louis

Start your unforgettable journey with Expedia. Our broad selection of flights from Portland to St. Louis caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including . Our selection of flights from Portland Intl. to Lambert-St. Louis Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from airlines, you're bound to find the perfect flight.
 

Maximizing Value with Portland to St. Louis Flights

Experience the joy of finding cheap flights from Portland Intl. to Lambert-St. Louis Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from Portland to St. Louis with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant St. Louis

Picture yourself stepping off the plane in St. Louis and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Portland to St. Louis Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Portland to St. Louis.
 

Beyond the Flight – Exploring St. Louis

With Expedia, your adventure extends beyond the flight. Explore St. Louis at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Portland to St. Louis with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Portland to St. Louis with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Portland to St. Louis

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.