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>

$66 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

Travelers love KAYAK

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

$194

Overall average: $501

Frontier

Sun 2/22Sat 2/28

BOI - STL • 1 stop

Cheapest non-stop

$249

Alaska Airlines

Thu 5/21Wed 5/27

PDX - STL • Non-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

Direct

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

Sun, Feb 22 - Sat, Feb 28

11:56 am - 1:09 pm

BOI

STL

24h 13m

1 stop

2:51 pm - 11:11 am

STL

BOI

21h 20m

1 stop

$194Frontier

Sun, Feb 22 - Sat, Feb 28

11:56 am - 8:02 pm

BOI

STL

31h 06m

2 stops

2:51 pm - 11:11 am

STL

BOI

21h 20m

1 stop

$227Frontier

Tue, Apr 7 - Tue, Apr 14

2:37 pm - 8:54 pm

BOI

STL

5h 17m

1 stop

8:30 am - 3:24 pm

STL

BOI

7h 54m

1 stop

$237United Airlines

Sat, Apr 18 - Tue, Apr 21

5:45 am - 2:40 pm

RDM

STL

6h 55m

1 stop

6:45 pm - 11:44 pm

STL

RDM

6h 59m

1 stop

$237Delta

Wed, Apr 15 - Sat, Apr 25

11:22 am - 12:22 am

RDM

STL

11h 00m

2 stops

7:05 am - 11:53 am

STL

RDM

6h 48m

1 stop

$242Delta

Wed, Apr 15 - Tue, Apr 21

11:22 am - 12:22 am

RDM

STL

11h 00m

2 stops

3:25 pm - 11:44 pm

STL

RDM

10h 19m

2 stops

$248Delta

Wed, Mar 4 - Sat, Mar 7

12:57 pm - 10:14 pm

PDX

STL

7h 17m

1 stop

5:15 am - 9:54 am

STL

PDX

6h 39m

1 stop

$249United Airlines

Thu, May 21 - Wed, May 27

10:39 am - 7:00 pm

PDX

STL

6h 21m

1 stop

6:20 pm - 8:37 pm

STL

PDX

4h 17mnonstop

$259Alaska Airlines

Thu, May 21 - Sun, May 31

11:18 am - 5:06 pm

PDX

STL

3h 48mnonstop

6:20 pm - 8:37 pm

STL

PDX

4h 17mnonstop

$269Alaska Airlines

Thu, Apr 16 - Sat, Apr 18

11:59 pm - 11:24 am

PDX

STL

9h 25m

1 stop

6:00 am - 1:22 pm

STL

PDX

9h 22m

1 stop

$273American Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$66

Best time to beat the crowds but there is an average 11% increase in price.

Most popular time to fly and prices are also 5% lower on average.

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

Airports

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

$66 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

Recent direct 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