STL

$68 Find Cheap Flights from Oregon to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$155
Overall average: $479
Frontier
Thu 2/19Sat 2/28
BOI - STL • 1 stop
Cheapest non-stop
$229
Alaska Airlines
Thu 5/21Wed 5/27
PDX - STL • Non-stop
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We hope you love your trip to St. Louis!
Flight Deals
Useful Info
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.

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

Thu, Feb 19 - Sat, Feb 28
Frontier Logo
12:36 pm - 1:09 pm
BOI
-
STL
23h 33m1 stop
Frontier Logo
2:51 pm - 11:11 am
STL
-
BOI
21h 20m1 stop
$155Frontier
Thu, Feb 19 - Sat, Feb 28
Frontier Logo
12:36 pm - 6:51 am
BOI
-
STL
41h 15m2 stops
Frontier Logo
2:51 pm - 11:11 am
STL
-
BOI
21h 20m1 stop
$200Frontier
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
8:30 am - 4:58 pm
PDX
-
STL
6h 28m1 stop
United Airlines Logo
6:00 am - 12:35 pm
STL
-
PDX
8h 35m1 stop
$249United Airlines
Fri, Feb 27 - Mon, Mar 2
Delta Logo
3:59 pm - 9:32 am
PDX
-
STL
15h 33m2 stops
Delta Logo
2:22 pm - 6:16 pm
STL
-
PDX
5h 54m1 stop
$252Delta
Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
5:00 am - 1:16 pm
PDX
-
STL
6h 16m1 stop
United Airlines Logo
2:45 pm - 11:06 pm
STL
-
PDX
10h 21m2 stops
$254United Airlines
Fri, Feb 27 - Mon, Mar 2
Delta Logo
7:35 pm - 9:32 am
PDX
-
STL
11h 57m2 stops
Delta Logo
2:22 pm - 8:55 pm
STL
-
PDX
8h 33m2 stops
$255Delta
Sat, Feb 28 - Wed, Mar 4
Delta Logo
8:50 am - 9:38 pm
BOI
-
STL
11h 48m2 stops
Delta Logo
2:22 pm - 9:56 pm
STL
-
BOI
8h 34m2 stops
$256Delta
Sat, Feb 7 - Sat, Feb 14
Alaska Airlines Logo
5:55 pm - 1:54 pm
BOI
-
STL
18h 59m1 stop
Alaska Airlines Logo
2:47 pm - 10:40 pm
STL
-
BOI
8h 53m1 stop
$275Alaska Airlines
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
12:07 pm - 6:44 pm
BOI
-
STL
5h 37m1 stop
Multiple Airlines Logo
2:50 pm - 9:05 pm
STL
-
BOI
7h 15m1 stop
$289Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
6:00 pm - 2:23 pm
BOI
-
STL
19h 23m1 stop
Alaska Airlines Logo
7:00 am - 2:58 pm
STL
-
BOI
8h 58m1 stop
$296Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Portland to St. Louis

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?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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

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

St. Louis (STL)