How does KAYAK find such low prices on flights from Oregon to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to St. Louis. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Oregon is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Oregon to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Oregon with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$68 CHEAP FLIGHTS from Oregon to St. Louis

STL

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$151

Overall average: $399

Southwest

Wed 2/11Wed 2/18

PDX - STL • 1 stop

Cheapest one-way

$68

Typical prices: $231-$236

Frontier

Fri 1/16

PDX - STL • 1 stop

Start a new search

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 Oregon to St. Louis

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oregon to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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 Oregon to St. Louis

Wed, Feb 11 - Wed, Feb 18

6:20 am - 1:55 pm

PDX

STL

5h 35m1 stop

1:15 pm - 6:00 pm

STL

PDX

6h 45m1 stop

$151Southwest

Wed, Jan 7 - Wed, Jan 28

5:14 am - 1:53 pm

PDX

STL

6h 39m1 stop

2:38 pm - 7:51 pm

STL

PDX

7h 13m1 stop

$159American Airlines

Wed, Jan 28 - Mon, Feb 2

6:00 am - 2:50 pm

PDX

STL

6h 50m1 stop

2:38 pm - 7:51 pm

STL

PDX

7h 13m1 stop

$170American Airlines

Thu, Jan 8 - Sun, Jan 11

12:05 pm - 10:02 am

PDX

STL

19h 57m1 stop

9:46 pm - 9:34 am

STL

PDX

13h 48m1 stop

$174Frontier

Thu, Jan 8 - Sun, Jan 11

12:05 pm - 10:02 am

PDX

STL

19h 57m1 stop

9:46 pm - 5:39 pm

STL

PDX

21h 53m2 stops

$195Frontier

Thu, Jan 22 - Mon, Jan 26

11:35 am - 11:25 pm

RDM

STL

9h 50m2 stops

3:31 pm - 10:47 pm

STL

RDM

9h 16m2 stops

$236Delta

Tue, Jan 6 - Tue, Jan 13

6:05 am - 9:35 pm

MFR

STL

13h 30m2 stops

3:40 pm - 10:59 pm

STL

MFR

9h 19m2 stops

$236Delta

Wed, Jan 28 - Sat, Jan 31

5:42 am - 1:54 pm

EUG

STL

6h 12m1 stop

6:19 pm - 9:30 pm

STL

EUG

29h 11m1 stop

$257Alaska Airlines

Sun, Jan 25 - Thu, Jan 29

1:55 pm - 1:54 pm

BOI

STL

22h 59m1 stop

2:50 pm - 11:01 pm

STL

BOI

9h 11m1 stop

$273Alaska Airlines

Sun, Jan 25 - Thu, Jan 29

7:05 pm - 5:11 am

BOI

STL

9h 06m1 stop

9:57 am - 7:51 pm

STL

BOI

10h 54m2 stops

$366United Airlines

Useful Info

Low season	January
High season	December
Cheapest flight	$68

Best time to beat the crowds with an average 3% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Portland to St. Louis

How does KAYAK find such low prices on flights from Oregon to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Oregon to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Oregon with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

O'Fallon

Wentzville

Farmington

Eureka

Litchfield

Grafton

Shrewsbury

Glencoe

Everything you need to know for your flight to St. Louis

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Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in St. Louis

St. Louis (STL)

STL

$68 Find Cheap Flights from Oregon to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

Everything you should know

Cheap Flights from Oregon to St. Louis

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

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

Recent last minute flight deals from Oregon to St. Louis

Good to know

FAQs for booking flights from Oregon to St. Louis

How does KAYAK find such low prices on flights from Oregon to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Oregon to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Oregon with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near St. Louis?

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

Cabin class types available on flights to Oregon

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

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight