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: • Detroit Metropolitan Wayne County (DTW) - 34% of one-stop connections • Chicago O'Hare Intl (ORD) - 21% of one-stop connections • Philadelphia (PHL) - 9% of one-stop connections • Washington, D.C. Reagan-National (DCA) - 8% 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 56% on flights from Portland to St. Louis. Saturday is the cheapest departure day at $339 round-trip on average, while Sunday is the most expensive at $766, a difference of $427. 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 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 $317 to $2,043. That means the highest observed fare was about 6x 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 lower than usual. Average one-way flight prices are about $175, which is 39% below 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 45m, compared with 4h 54m via Washington, D.C. Reagan-National (DCA) and 5h 19m 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 starting from around $31 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 $349 to $568, with an average of $441 over the past 12 months. Anything below $349 counts as a good deal.

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 24% cheaper than the average day, while Sunday is the most expensive, with prices 73% higher.

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

•March is the cheapest month to fly from Portland to St. Louis at $354 round-trip. •December ($757) and November ($647) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 113% 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?

American Airlines ($339) and Delta ($339) 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?

Detroit Metropolitan Wayne County (DTW) is the most popular layover for the Portland to St. Louis route. 34% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DTW.

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

Flights via Detroit Metropolitan Wayne County (DTW) offer the most affordable fares, with an average round-trip price of $386. 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 52m over the past 3 months.

$142 CHEAP FLIGHTS from Portland to St. Louis (PWM - STL)

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Never overpay with our price tracking tools.

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

Cheapest round-trip

$317

Typical prices: $349-$568

Multiple Airlines

Sat 11/3Mon 11/12

PWM - STL • 2 stops

Cheapest one-way

$142

Typical prices: $207-$451

Multiple Airlines

Sat 10/27

PWM - STL • 2 stops

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

March

Cheapest • 20% price drop

April

Most popular

Good to know

Top layover airports

Detroit Metropolitan Wayne County (DTW)

Cheapest • Avg $386 (round-trip)

Washington, D.C. Reagan-National (DCA)

Shortest trip • 4h 54m (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

Tue, Nov 3 - Thu, Nov 12

5:09 pm - 5:40 pmPWM Portland-STL Lambert-St Louis

25h 31m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

4:26 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

15h 42m1 stop Orlando

$317Multiple Airlines

Wed, Oct 21 - Thu, Oct 22

4:27 pm - 9:46 pmPWM Portland-STL Lambert-St Louis

6h 19m1 stop New York LaGuardia

5:08 pm - 11:59 pmSTL Lambert-St Louis-PWM Portland

5h 51m1 stop Washington, D.C. Reagan-National

$339American Airlines

Wed, Nov 4 - Thu, Nov 12

4:47 pm - 8:51 pmPWM Portland-STL Lambert-St Louis

5h 04m1 stop Detroit Metropolitan Wayne County

5:00 pm - 11:21 pmSTL Lambert-St Louis-PWM Portland

5h 21m1 stop New York LaGuardia

$339Delta

Wed, Nov 4 - Sat, Nov 7

1:52 pm - 8:14 pmPWM Portland-STL Lambert-St Louis

7h 22m1 stop New York LaGuardia

2:25 pm - 9:00 pmSTL Lambert-St Louis-PWM Portland

5h 35m1 stop Atlanta Hartsfield-Jackson

$339Delta

Tue, Nov 3 - Tue, Nov 10

5:50 am - 10:48 amPWM Portland-STL Lambert-St Louis

5h 58m1 stop Newark

6:00 am - 1:26 pmSTL Lambert-St Louis-PWM Portland

6h 26m1 stop Newark

$339United Airlines

Tue, Nov 3 - Mon, Nov 9

5:50 am - 10:48 amPWM Portland-STL Lambert-St Louis

5h 58m1 stop Newark

5:00 pm - 11:21 pmSTL Lambert-St Louis-PWM Portland

5h 21m1 stop Newark

$339United Airlines

Tue, Nov 17 - Thu, Nov 19

12:06 pm - 4:43 pmPWM Portland-STL Lambert-St Louis

5h 37m1 stop Chicago O'Hare Intl

6:00 am - 11:56 amSTL Lambert-St Louis-PWM Portland

4h 56m1 stop Chicago O'Hare Intl

$339American Airlines

Tue, Nov 3 - Fri, Nov 13

5:09 pm - 5:40 pmPWM Portland-STL Lambert-St Louis

25h 31m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

4:26 pm - 9:08 amSTL Lambert-St Louis-PWM Portland

15h 42m1 stop Orlando

$353Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

5:40 am - 3:00 pmPWM Portland-STL Lambert-St Louis

10h 20m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson

6:20 am - 2:45 pmSTL Lambert-St Louis-PWM Portland

7h 25m2 stops Chicago Midway Baltimore/Washington

$355Southwest

Tue, Nov 3 - Wed, Nov 11

10:25 am - 7:25 pmPWM Portland-STL Lambert-St Louis

10h 00m2 stops Baltimore/Washington Pittsburgh

6:20 am - 2:45 pmSTL Lambert-St Louis-PWM Portland

7h 25m2 stops Chicago Midway Baltimore/Washington

$355Southwest

Recent last minute flight deals from Portland to St. Louis

Sun, Oct 4 - Tue, Oct 6

2:03 pm - 8:44 pmPWM Portland-STL Lambert-St Louis

7h 41m1 stop Chicago O'Hare Intl

7:03 am - 3:43 pmSTL Lambert-St Louis-PWM Portland

7h 40m1 stop Washington, D.C. Reagan-National

$816American Airlines

Sun, Oct 4 - Tue, Oct 6

2:03 pm - 8:44 pmPWM Portland-STL Lambert-St Louis

7h 41m1 stop Chicago O'Hare Intl

7:03 am - 3:43 pmSTL Lambert-St Louis-PWM Portland

7h 40m1 stop Washington, D.C. Reagan-National

$907American Airlines

Sun, Oct 4 - Tue, Oct 6

5:15 am - 12:15 pmPWM Portland-STL Lambert-St Louis

8h 00m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

1:29 pm - 9:54 pmSTL Lambert-St Louis-PWM Portland

7h 25m1 stop Chicago O'Hare Intl

$912United Airlines

Sun, Oct 4 - Tue, Oct 6

5:15 am - 12:15 pmPWM Portland-STL Lambert-St Louis

8h 00m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

1:29 pm - 11:59 pmSTL Lambert-St Louis-PWM Portland

9h 30m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$917United Airlines

Sun, Oct 4 - Tue, Oct 6

6:02 am - 1:23 pmPWM Portland-STL Lambert-St Louis

8h 21m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

6:00 am - 4:47 pmSTL Lambert-St Louis-PWM Portland

9h 47m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

$1,633Delta

Sun, Oct 4 - Tue, Oct 6

6:02 am - 1:23 pmPWM Portland-STL Lambert-St Louis

8h 21m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

6:00 am - 4:47 pmSTL Lambert-St Louis-PWM Portland

9h 47m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

$1,653Delta

Sun, Oct 4 - Tue, Oct 6

6:02 am - 1:23 pmPWM Portland-STL Lambert-St Louis

8h 21m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

6:00 am - 4:47 pmSTL Lambert-St Louis-PWM Portland

9h 47m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

$1,708Delta

Sun, Oct 4 - Tue, Oct 6

6:02 am - 1:23 pmPWM Portland-STL Lambert-St Louis

8h 21m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

6:00 am - 4:47 pmSTL Lambert-St Louis-PWM Portland

9h 47m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

$1,728Delta

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

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 24% cheaper than the average day, while Sunday is the most expensive, with prices 73% 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.: •March is the cheapest month to fly from Portland to St. Louis at $354 round-trip.
•December ($757) and November ($647) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 113% 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	$142

Beat the crowds with an average 24% drop in travelers.

The most popular month to fly with an average 61% 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 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 $349 to $568, with an average of $441 over the past 12 months. Anything below $349 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 $317 to $2,043. That means the highest observed fare was about 6x 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 lower than usual. Average one-way flight prices are about $175, which is 39% below 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 starting from around $31 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:

• Detroit Metropolitan Wayne County (DTW) - 34% of one-stop connections
• Chicago O'Hare Intl (ORD) - 21% of one-stop connections
• Philadelphia (PHL) - 9% of one-stop connections
• Washington, D.C. Reagan-National (DCA) - 8% 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 56% on flights from Portland to St. Louis. Saturday is the cheapest departure day at $339 round-trip on average, while Sunday is the most expensive at $766, a difference of $427.

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 45m, compared with 4h 54m via Washington, D.C. Reagan-National (DCA) and 5h 19m 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 Sunday. On this route, Saturday flights average $339, about $427 less than Sunday fares (56% savings) based on the last 12 months.
If you can choose when to travel, plan your Portland to St. Louis trip for March. Fares historically average $354 round-trip in that month - typically $403 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
• DoubleTree by Hilton St. Louis Airport

More options for your flight from Portland to St. Louis

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PWM - STL

$142 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

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