Cheap Flights from Portland (PWM) to St. Louis (STL)

Popular airlines from Portland Intl. Jetport Airport (PWM) to Lambert-St. Louis International Airport (STL)

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

September is typically the cheapest month to fly

From CA $288 - CA $677 per traveller.

Graph displaying average flight prices per month

Flight from Portland to St. Louis (PWM - STL) route information
Origin airport
Portland Intl. Jetport
Destination airport
Lambert-St. Louis Intl.
Distance
1749 km

Portland to St. Louis Flights

The easy way to book your flights from Portland to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Portland Intl. Jetport, PWM to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Portland to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Portland currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Portland 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

Frequently asked questions

How much is a flight from Portland Intl. Jetport Airport (PWM) to STL?
The lowest price advertised for a round-trip journey from Portland Intl. Jetport Airport (PWM) to Lambert Field is . But you better act quick. This price is based on 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 Portland Intl. Jetport to Lambert-St. Louis Intl. Airport (STL)?
Most flights can be cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your vacation, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Portland Intl. Jetport to STL that have flexible change policies?
Many carriers offer the option to move your flight at no extra charge. All you pay is the fare difference. When searching for Portland Intl. Jetport to Lambert Field flights, you'll find a "No change fees" box for you to tick.
How many hours is the flight from PWM to Lambert-St. Louis Intl. Airport (STL)?
The average flight between PWM and STL is 4 hours and 48 minutes. If you're travelling with kids, it's always a good idea to pack a few healthy snacks in your carry-on baggage.
How far is the flight from Portland Intl. Jetport Airport (PWM) to Lambert Field?
The flight distance between Portland Intl. Jetport and Lambert Field is 1,750 kilometres. Close your eyes or make a start on the latest bestseller and the trip will zip by.
Which airlines fly direct from PWM to STL?
You won't find any airlines operating directly between Portland Intl. Jetport and Lambert Field, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a good way to break up a trip!
Are Portland Intl. Jetport Airport (PWM) to STL flight tickets cheaper when they're purchased at the last minute?
It is possible to nab amazing last-minute deals from Portland Intl. Jetport Airport (PWM) to Lambert-St. Louis Intl. Airport (STL), but it's also possible to miss out altogether! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares carrier prices and updates flight deals frequently, so you can rest assured you're always getting the latest offers.

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