$110 Cheap Flights from Portland (PWM) to St. Louis (STL)

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

Prices were available within the past 7 days and start at $110 for one-way flights and $205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flights from Portland (PWM) to St. Louis (STL)
Origin airport
Portland Intl. Jetport
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$205
Distance
1093 mi

Portland to St. Louis Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Portland to St. Louis offer the perfect respite. Not only does exploring St. Louis provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Portland to St. Louis may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of St. Louis are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to St. Louis more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to St. Louis is $110 now!

Frequently asked questions

How much is a flight from Portland Intl. Jetport Airport (PWM) to St. Louis Lambert International Airport?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Portland Intl. Jetport Airport (PWM) to STL start from $205. Make your booking ASAP to secure the best price for your adventure. 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 Airport (PWM) to St. Louis Lambert International Airport?
This differs between airlines, as each has its own set of terms and conditions. Visit the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Portland Intl. Jetport Airport (PWM) to St. Louis Lambert International Airport 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 Portland Intl. Jetport Airport (PWM) to Lambert Field flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Portland Intl. Jetport Airport (PWM) to Lambert-St. Louis Intl. Airport (STL)?
It’s around 1088 mi between Portland and St. Louis, so expect to be flying for a while. Keep yourself occupied with things like a magazine or the latest bestseller.
Which airlines fly direct from PWM to Lambert Field?
You won’t find any airlines flying directly between PWM and STL, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip!
Are PWM to STL flight tickets cheaper when they're purchased at the last minute?
Flight prices from Portland Intl. Jetport to STL are available up to a year prior to departure on Expedia. And although you may nab fantastic last-minute deals, it’s never something you can count on. Also, booking your flights in advance means you’ll have more choices — and you can avoid being wedged in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials.
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