STL

$109 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 5/3. 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.
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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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Oregon to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
American Airlines Logo
11:59 pm - 9:54 amPDX-STL
7h 55m1 stop
American Airlines Logo
5:00 am - 10:24 amSTL-PDX
7h 24m1 stop
$227American Airlines
Find Deal
Fri, May 23 - Tue, Jun 3
Southwest Logo
5:20 am - 1:30 pmPDX-STL
6h 10m1 stop
Southwest Logo
3:25 pm - 11:35 pmSTL-PDX
10h 10m1 stop
$232Southwest
Find Deal
Tue, Jun 3 - Sat, Jun 7
Frontier Logo
6:20 am - 3:07 pmPDX-STL
6h 47m1 stop
Frontier Logo
6:53 pm - 12:38 amSTL-PDX
7h 45m1 stop
$238Frontier
Find Deal
Thu, May 1 - Mon, May 5
Frontier Logo
6:20 am - 10:01 amPDX-STL
25h 41m1 stop
Frontier Logo
9:55 pm - 9:12 amSTL-PDX
13h 17m1 stop
$240Frontier
Find Deal
Thu, Apr 24 - Sun, Apr 27
Frontier Logo
6:40 am - 11:41 amPDX-STL
27h 01m1 stop
Frontier Logo
6:58 pm - 12:42 amSTL-PDX
7h 44m1 stop
$250Frontier
Find Deal
Sat, Apr 19 - Sat, Apr 26
United Airlines Logo
7:41 pm - 5:03 amPDX-STL
7h 22m1 stop
United Airlines Logo
5:00 am - 9:42 amSTL-PDX
6h 42m1 stop
$261United Airlines
Find Deal
Wed, May 28 - Fri, May 30
Delta Logo
7:50 pm - 9:28 amPDX-STL
11h 38m2 stops
Delta Logo
7:19 pm - 11:42 pmSTL-PDX
6h 23m1 stop
$266Delta
Find Deal
Tue, Apr 29 - Wed, May 7
Delta Logo
7:50 pm - 9:28 amPDX-STL
11h 38m2 stops
Delta Logo
7:19 pm - 11:42 pmSTL-PDX
6h 23m1 stop
$276Delta
Find Deal
Mon, May 5 - Tue, May 13
Sun Country Air Logo
6:30 pm - 11:37 amPDX-STL
15h 07m1 stop
Sun Country Air Logo
7:30 am - 2:54 pmSTL-PDX
9h 24m1 stop
$285Sun Country Air
Find Deal
Thu, May 15 - Sun, May 18
United Airlines Logo
5:25 pm - 11:52 pmBOI-STL
5h 27m1 stop
United Airlines Logo
4:32 pm - 9:26 pmSTL-BOI
5h 54m1 stop
$293United Airlines
Find Deal
Wed, May 21 - Wed, May 28

Good to know

Low season

January

High season

April

Cheapest flight

$109
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 10% lower on average.
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.

See more FAQs

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

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

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