Which airports can I use when flying from Portland to St. Louis?

Flights from Portland to St. Louis usually depart from Portland (PWM) and arrive at Lambert-St Louis (STL).

What cabin classes can I book on flights from Portland to St. Louis?

Two cabin classes are available on flights from Portland to St. Louis: • Economy Class • First Class

Which airports do connecting flights from Portland to St. Louis pass through?

One-stop flights from Portland to St. Louis most commonly connect through: • Chicago O'Hare Intl (ORD) - 21% of one-stop connections • Detroit Metropolitan Wayne County (DTW) - 19% of one-stop connections • Philadelphia (PHL) - 17% of one-stop connections • Baltimore/Washington (BWI) - 10% of one-stop connections

Can I save money by using flexible dates for flights from Portland to St. Louis?

Yes. Flexible dates can save you up to 35% on flights from Portland to St. Louis. Saturday is the cheapest departure day at $334 round-trip on average, while Tuesday is the most expensive at $507, a difference of $173. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in St. Louis?

Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

How long is a flight from Portland to St. Louis?

A nonstop flight from Portland to St. Louis takes about 00m, covering 1,092 miles.

Do I need a passport to fly from Portland to St. Louis?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Portland to St. Louis changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $388 to $1,169. That means the highest observed fare was about 3x higher than the lowest one.

How are flight prices from Portland to St. Louis looking right now?

One-way fares from Portland to St. Louis are currently higher than usual. Average one-way flight prices are about $282, which is 16% above the typical average for this route.

How much time can I save by choosing a different layover airport from Portland to St. Louis?

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 48m, compared with 5h 04m via Washington, D.C. Reagan-National (DCA) and 5h 04m via Newark (EWR).

What is the time difference between Portland and St. Louis?

St. Louis is 1 hour behind Portland (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Lambert-St Louis Airport (STL)?

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $77 for economy cars. Top options include: • Hertz • Budget • Alamo • Enterprise Rent-A-Car • Payless

How much should I expect to pay for a Portland to St. Louis flight?

Round-trip flights from Portland to St. Louis range from $339 to $564, with an average of $430 over the past 12 months. Anything below $339 counts as a good deal.

How much is a round-trip flight from Portland to St. Louis?

Round-trip flights from Portland to St. Louis typically range from $339 to $564. The lowest price found in the past 5 days was $388, on Southwest.

What's the cheapest day of the week to fly from Portland to St. Louis?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Portland to St. Louis. It’s 23% cheaper than the average day, while Tuesday is the most expensive, with prices 17% higher.

What’s the cheapest month to fly from Portland to St. Louis?

•September is the cheapest month to fly from Portland to St. Louis at $288 round-trip. •December ($617) and November ($582) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 114% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Which airline is the cheapest to fly from Portland to St. Louis?

Southwest ($388) and American Airlines ($393) are the cheapest airlines to fly round-trip from Portland to St. Louis according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Portland to St. Louis?

Chicago O'Hare Intl (ORD) is the most popular layover for the Portland to St. Louis route. Over the past 3 months, 21% of KAYAK users found 1-stop round-trips connecting via ORD.

What is the cheapest layover airport when flying from Portland to St. Louis?

Flights via Philadelphia (PHL) offer the most affordable fares, with an average round-trip price of $430. Based on KAYAK data over the past 3 months.

When flying from Portland to St. Louis which airport offers the shortest layover?

Detroit Metropolitan Wayne County (DTW) had the shortest average connection time for Portland to St. Louis layovers at 2h 53m over the past 3 months.

$182 CHEAP FLIGHTS from Portland to St. Louis (PWM - STL)

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$388

Typical prices: $339-$564

Southwest

Mon 1/22Fri 1/26

PWM - STL • 1 stop

Cheapest one-way

$182

Typical prices: $204-$398

Delta

Sat 12/1

PWM - STL • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Portland and St. Louis. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

September

Cheapest • 33% price drop

April

Most popular

Good to know

Top layover airports

Philadelphia (PHL)

Cheapest • Avg $430 (round-trip)

Detroit Metropolitan Wayne County (DTW)

Shortest trip • 4h 48m (one-way)

Insights

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to St. Louis!

Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portland to St. Louis

Fri, Jan 22 - Tue, Jan 26

12:55 pm - 7:40 pmPWM Portland-STL Lambert-St Louis

7h 45m1 stop Baltimore/Washington

6:25 am - 12:15 pmSTL Lambert-St Louis-PWM Portland

4h 50m1 stop Baltimore/Washington

$388Southwest

Thu, Jan 14 - Mon, Jan 18

4:47 pm - 10:06 pmPWM Portland-STL Lambert-St Louis

6h 19m1 stop Washington, D.C. Reagan-National

3:47 pm - 9:43 pmSTL Lambert-St Louis-PWM Portland

4h 56m1 stop Washington, D.C. Reagan-National

$393American Airlines

Thu, Jan 14 - Mon, Jan 18

4:25 pm - 11:20 pmPWM Portland-STL Lambert-St Louis

7h 55m1 stop Chicago O'Hare Intl

4:57 pm - 11:32 pmSTL Lambert-St Louis-PWM Portland

5h 35m1 stop Newark

$393United Airlines

Fri, Jan 22 - Tue, Jan 26

9:05 am - 5:50 pmPWM Portland-STL Lambert-St Louis

9h 45m2 stops Newark Chicago O'Hare Intl

8:05 am - 2:44 pmSTL Lambert-St Louis-PWM Portland

5h 39m1 stop Chicago O'Hare Intl

$393United Airlines

Thu, Jan 14 - Mon, Jan 18

12:55 pm - 7:40 pmPWM Portland-STL Lambert-St Louis

7h 45m1 stop Baltimore/Washington

7:40 am - 3:45 pmSTL Lambert-St Louis-PWM Portland

7h 05m1 stop Orlando

$393Southwest

Sun, Dec 20 - Tue, Dec 22

4:38 pm - 8:43 pmPWM Portland-STL Lambert-St Louis

5h 05m1 stop Detroit Metropolitan Wayne County

7:00 am - 3:50 pmSTL Lambert-St Louis-PWM Portland

7h 50m1 stop New York LaGuardia

$425Delta

Thu, May 6 - Sat, May 8

7:10 am - 1:22 pmPWM Portland-STL Lambert-St Louis

7h 12m1 stop Charlotte Douglas

3:43 pm - 11:52 pmSTL Lambert-St Louis-PWM Portland

7h 09m1 stop Washington, D.C. Reagan-National

$462American Airlines

Thu, May 6 - Sun, May 9

6:00 am - 12:58 pmPWM Portland-STL Lambert-St Louis

7h 58m1 stop Atlanta Hartsfield-Jackson

3:40 pm - 11:23 pmSTL Lambert-St Louis-PWM Portland

6h 43m1 stop Atlanta Hartsfield-Jackson

$467Delta

Wed, Dec 23 - Tue, Dec 29

9:48 am - 12:41 amPWM Portland-STL Lambert-St Louis

15h 53m1 stop Orlando

6:20 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

13h 48m1 stop Orlando

$640Multiple Airlines

Sat, Dec 19 - Sun, Dec 27

9:48 am - 12:41 amPWM Portland-STL Lambert-St Louis

15h 53m1 stop Orlando

5:58 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

14h 10m1 stop Orlando

$689Multiple Airlines

Recent last minute flight deals from Portland to St. Louis

Tue, Nov 17 - Tue, Dec 1

5:09 pm - 5:42 pmPWM Portland-STL Lambert-St Louis

25h 33m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

6:13 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

13h 55m1 stop Orlando

$638Multiple Airlines

Tue, Nov 17 - Tue, Dec 1

12:45 pm - 6:05 pmPWM Portland-STL Lambert-St Louis

6h 20m1 stop Baltimore/Washington

12:40 pm - 9:50 pmSTL Lambert-St Louis-PWM Portland

8h 10m1 stop Baltimore/Washington

$700Southwest

Tue, Nov 17 - Tue, Dec 1

8:49 am - 4:59 pmPWM Portland-STL Lambert-St Louis

9h 10m2 stops Newark Chicago O'Hare Intl

8:02 am - 8:42 pmSTL Lambert-St Louis-PWM Portland

11h 40m2 stops Chicago O'Hare Intl Newark

$715United Airlines

Tue, Nov 17 - Fri, Nov 27

3:41 pm - 9:52 pmPWM Portland-STL Lambert-St Louis

7h 11m1 stop Newark

8:00 am - 2:27 pmSTL Lambert-St Louis-PWM Portland

5h 27m1 stop Washington, D.C. Dulles Intl

$738United Airlines

Tue, Nov 17 - Fri, Nov 27

5:15 am - 11:00 amPWM Portland-STL Lambert-St Louis

6h 45m2 stops Baltimore/Washington Chicago Midway

4:40 pm - 11:55 pmSTL Lambert-St Louis-PWM Portland

6h 15m2 stops Charlotte Douglas Baltimore/Washington

$853Southwest

Wed, Nov 18 - Sun, Nov 29

9:48 am - 10:45 amPWM Portland-STL Lambert-St Louis

25h 57m2 stops Orlando Denver Intl

6:05 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

14h 03m1 stop Orlando

$894Multiple Airlines

Wed, Nov 18 - Sun, Nov 29

12:50 pm - 6:17 pmPWM Portland-STL Lambert-St Louis

6h 27m1 stop Chicago O'Hare Intl

5:02 am - 11:56 amSTL Lambert-St Louis-PWM Portland

5h 54m1 stop Chicago O'Hare Intl

$988American Airlines

Tue, Nov 17 - Sun, Nov 29

10:31 am - 3:21 pmPWM Portland-STL Lambert-St Louis

5h 50m1 stop Washington, D.C. Reagan-National

5:02 am - 11:56 amSTL Lambert-St Louis-PWM Portland

5h 54m1 stop Chicago O'Hare Intl

$988American Airlines

Tue, Nov 17 - Sun, Nov 29

5:09 pm - 5:42 pmPWM Portland-STL Lambert-St Louis

25h 33m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

6:05 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

14h 03m1 stop Orlando

$1,026Multiple Airlines

Fri, Nov 13 - Sat, Nov 14

1:40 pm - 9:00 pmPWM Portland-STL Lambert-St Louis

8h 20m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson

5:00 am - 2:45 pmSTL Lambert-St Louis-PWM Portland

8h 45m2 stops Orlando Baltimore/Washington

$1,097Southwest

Booking Insights

Price, demand and travel trends for Portland to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Portland to St. Louis? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to St. Louis departing in january.
What's the cheapest day of the week to fly from Portland to St. Louis?: Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Portland to St. Louis. It’s 23% cheaper than the average day, while Tuesday is the most expensive, with prices 17% higher.
What’s the cheapest month to fly from Portland to St. Louis? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from Portland to St. Louis, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •September is the cheapest month to fly from Portland to St. Louis at $288 round-trip.
•December ($617) and November ($582) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 114% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Low season	January
High season	April
Cheapest flight	$182

Beat the crowds with an average 51% drop in travelers.

The most popular month to fly with an average 89% increase in travelers.

One-way flight from Portland to St. Louis

When to book flights from Portland to St. Louis

Are your dates flexible? Find out the best times to travel from Portland to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Portland to St. Louis?
Two cabin classes are available on flights from Portland to St. Louis:

• Economy Class
• First Class
How long is a flight from Portland to St. Louis?
A nonstop flight from Portland to St. Louis takes about 00m, covering 1,092 miles.
Do I need a passport to fly from Portland to St. Louis?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Portland to St. Louis flight?
Round-trip flights from Portland to St. Louis range from $339 to $564, with an average of $430 over the past 12 months. Anything below $339 counts as a good deal.
Have flight prices from Portland to St. Louis changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $388 to $1,169. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from Portland to St. Louis looking right now?
One-way fares from Portland to St. Louis are currently higher than usual. Average one-way flight prices are about $282, which is 16% above the typical average for this route.
What car rental options are available at Lambert-St Louis Airport (STL)?
Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $77 for economy cars. Top options include:

• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless
Which airports can I use when flying from Portland to St. Louis?
Flights from Portland to St. Louis usually depart from Portland (PWM) and arrive at Lambert-St Louis (STL).
Which airports do connecting flights from Portland to St. Louis pass through?
One-stop flights from Portland to St. Louis most commonly connect through:

• Chicago O'Hare Intl (ORD) - 21% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 19% of one-stop connections
• Philadelphia (PHL) - 17% of one-stop connections
• Baltimore/Washington (BWI) - 10% of one-stop connections
Can I save money by using flexible dates for flights from Portland to St. Louis?
Yes. Flexible dates can save you up to 35% on flights from Portland to St. Louis. Saturday is the cheapest departure day at $334 round-trip on average, while Tuesday is the most expensive at $507, a difference of $173.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How much time can I save by choosing a different layover airport from Portland to St. Louis?
Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 48m, compared with 5h 04m via Washington, D.C. Reagan-National (DCA) and 5h 04m via Newark (EWR).
What is the time difference between Portland and St. Louis?
St. Louis is 1 hour behind Portland (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in St. Louis?
Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

If your dates are flexible, aim for a Saturday departure and avoid flying on Tuesday. On this route, Saturday flights average $334, about $173 less than Tuesday fares (34% savings) based on the last 12 months.
If you can choose when to travel, plan your Portland to St. Louis trip for September. Fares historically average $288 round-trip in that month - typically $329 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

• Renaissance St. Louis Airport Hotel
• Drury Inn & Suites St. Louis Airport
• Hyatt Select St. Louis Airport

More options for your flight from Portland to St. Louis

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PWM - STL

$182 Find Cheap Flights from Portland to St. Louis - Compare and Save

Everything you should know

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

Recent round-trip flight deals from Portland to St. Louis

Recent one-way flight deals from Portland to St. Louis

Recent last minute flight deals from Portland to St. Louis

Price, demand and travel trends for Portland to St. Louis flights

How much is a round-trip flight from Portland to St. Louis?

What's the cheapest day of the week to fly from Portland to St. Louis?

What’s the cheapest month to fly from Portland to St. Louis?

Which airline is the cheapest to fly from Portland to St. Louis?

What’s the most popular layover airport when flying from Portland to St. Louis?

What is the cheapest layover airport when flying from Portland to St. Louis?

When flying from Portland to St. Louis which airport offers the shortest layover?

Key details for Portland to St. Louis flights

Low season

High season

Cheapest flight

When to book flights from Portland to St. Louis

Your Portland to St. Louis flight questions, answered

Your guide to booking Portland to St. Louis flights

More options for your flight from Portland to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Portland to St. Louis

Find direct flights to and from Portland and St. Louis

Flights from domestic origins to St. Louis

Flights to other popular destinations

Find deals for your return flight