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

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

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

September is typically the cheapest month to fly

From CA $273 - CA $601 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Portland (STL - PWM) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Portland Intl. Jetport
Distance
1749 km
Average flight time
6 hours 10 mins

St. Louis to Portland Flights

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

With Expedia, it’s simple to find and book flights to Portland from St. Louis 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 Portland Intl. Jetport, 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 St. Louis to Portland today, tomorrow, or this week.  

 

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

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

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 Portland with Expedia today.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to PWM?
If you're travelling between STL and PWM, round-trip flights start from . This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to Portland Intl. Jetport Airport (PWM)?
Most flights can be cancelled online, but whether you incur a fee varies between airlines. If you do have to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to Portland Intl. Jetport that have flexible change policies?
Use our "No change fees" filter to find flexible ticketing options for your flight from Lambert-St. Louis Intl. Airport (STL) to PWM. This allows you to snag a low rate ahead of time and still have the freedom to reschedule without any extra fees. Fare adjustments may apply if your new flight is more expensive.
How many hours is the flight from Lambert-St. Louis Intl. Airport (STL) to PWM?
Consider bringing your own in-flight entertainment, as it takes around 4 hours and 2 minutes to jet to Portland Intl. Jetport Airport (PWM) from STL. A good set of noise-cancelling headphones will be useful too.
How far is the flight from Lambert Field to Portland Intl. Jetport?
Around 1,750 kilometres separates St. Louis and Portland, so pack some entertainment to keep you busy for a couple of hours. That juicy novel you haven't started will be perfect.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Portland Intl. Jetport?
Flying directly between STL and Portland Intl. Jetport Airport (PWM) isn't possible right now. However, you'll still be able to book a flight to Portland with at least one stop.
Are STL to PWM flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so it's no sure thing. While last-minute flight deals between Lambert Field and Portland Intl. Jetport are possible, it's also a good idea to keep track of prices well before you fly. In fact, some carriers announce their prices up to 12 months before the departure date. Expedia is continuously updating the biggest bargains around, so keep checking and be ready to grab your seat when the price is right.

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