$68 Find Cheap Flights from St. Louis to Oregon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Oregon departing on 1/17. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Oregon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Oregon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Oregon.
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Flight Deals

Cheap Flights from St. Louis to Oregon

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Portland
Portland1 stop$203
Eugene
Eugene2 stops$307
Redmond
Redmond2 stops$236
Medford
Medford2 stops$236
Boise
Boise2 stops$236
Portland
Portland1 stop$203
Eugene
Eugene2 stops$307
Redmond
Redmond2 stops$236
Medford
Medford2 stops$236
Boise
Boise2 stops$236

Book Cheap St. Louis to Oregon Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Oregon 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 St. Louis to Oregon

Thu, Jan 29 - Thu, Feb 5
Frontier Logo
10:01 pm - 9:49 am
STL
-
PDX
13h 48m1 stop
Frontier Logo
11:28 am - 9:06 pm
PDX
-
STL
7h 38m1 stop
$203Frontier
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
10:01 pm - 9:49 am
STL
-
PDX
13h 48m1 stop
Multiple Airlines Logo
5:35 pm - 6:44 pm
PDX
-
STL
23h 09m2 stops
$228Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Delta Logo
6:35 am - 6:50 pm
STL
-
PDX
14h 15m2 stops
Delta Logo
7:37 pm - 9:34 am
PDX
-
STL
11h 57m2 stops
$236Delta
Thu, Feb 19 - Sun, Feb 22
Delta Logo
6:35 am - 4:40 pm
STL
-
MFR
12h 05m2 stops
Delta Logo
11:30 am - 12:25 am
MFR
-
STL
10h 55m2 stops
$236Delta
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
1:15 pm - 6:56 pm
STL
-
PDX
7h 41m1 stop
United Airlines Logo
5:00 am - 4:03 pm
PDX
-
STL
9h 03m2 stops
$254United Airlines
Thu, Feb 19 - Sat, Feb 21
Southwest Logo
5:25 am - 11:00 am
STL
-
BOI
6h 35m1 stop
Southwest Logo
3:30 pm - 11:40 pm
BOI
-
STL
7h 10m1 stop
$334Southwest
Sun, Jan 18 - Sun, Jan 25
American Airlines Logo
7:27 am - 2:31 pm
STL
-
EUG
9h 04m1 stop
American Airlines Logo
3:18 pm - 11:59 pm
EUG
-
STL
6h 41m1 stop
$335American Airlines
Sun, Jan 18 - Sun, Jan 25
United Airlines Logo
8:30 am - 9:10 pm
STL
-
EUG
14h 40m2 stops
United Airlines Logo
1:10 pm - 8:58 pm
EUG
-
STL
5h 48m1 stop
$340United Airlines
Thu, Mar 19 - Tue, Mar 24
American Airlines Logo
7:00 am - 12:48 pm
STL
-
BOI
6h 48m1 stop
American Airlines Logo
6:38 am - 1:51 pm
BOI
-
STL
6h 13m1 stop
$363American Airlines
Thu, Feb 19 - Sat, Feb 21
Southwest Logo
9:40 am - 3:50 pm
STL
-
BOI
7h 10m2 stops
Southwest Logo
3:30 pm - 11:40 pm
BOI
-
STL
7h 10m1 stop
$367Southwest
Booking Insights

KAYAK's insights & trends for St. Louis to Oregon flights

Get data-powered insights and trends into flights from St. Louis to Oregon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Oregon flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Oregon from St. Louis found in the last 72 hours was to Portland, at $229 round-trip. The most popular route is from St. Louis (STL) to Portland (PDX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $229.

What is the cheapest month to fly from St. Louis to Oregon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Oregon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Oregon is February, when tickets cost $295 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $472 and $403 respectively.

What’s the cheapest day of the week to fly from St. Louis to Oregon?

The average price of all round-trip flights from St. Louis to Oregon clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Oregon, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Oregon, Tuesday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from St. Louis to Oregon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Oregon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Oregon, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$68
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Portland

FAQs - booking Oregon flights

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

    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 St. Louis to Oregon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to 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 St. Louis to Oregon?

    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 from St. Louis to Oregon with an airline and back with another airline.

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

    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 from St. Louis to Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Oregon?

    The cheapest time of day to fly to Oregon is generally in the morning, when round-trip flights cost $394 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Oregon is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $562.

Reviews of the top 5 airlines serving from St. Louis to Oregon

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Oregon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Oregon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11512 reviews
7.0Entertainment
7.1Food
8.5Crew
7.8Comfort
8.1Boarding
Airline reviews

The delays were awful and the constant gate changes were annoying and the forceful bag checking was rude.

2.0 MediocreAnonymous, Dec 2025
JFK - PDX
Read more Alaska Airlines reviews

The delays were awful and the constant gate changes were annoying and the forceful bag checking was rude.

There was no food or entertainment so quit asking about that! Everything else was fine.

There was no food or entertainment. I was in the middle seat which was uncomfortable. The flight and crew were fine.

Food was bad. Just a drink for a 5 hour flight

I liked that the crew was friendly, we left and arrived at near scheduled times, plenty of on-board crew to handle the cabin service for the flight and I found the price of my airline ticket to be excellent!

No accommodation or credit offered for cancelled layover flight to Eugene from portland

I've never flied them before but liked them. Weather was bad so a little scarey but they did a great job landing.

If they actually let me fly. I was rerouted to United and there was no Alaska airlines reps at all. Then the lady who worked the delta counter told me to go away and figure things out myself. Horrible experience.

Kayak I had marked one carry on, one checked bag. Yet when it completed the purchase marked it as no carry on. Fail on kayaks side! Then extended flight delayed due to computer issues. Crew of the plane did awesome but fail on both kayak and alaskan

Late. Too long a flight for a 737. 0.5 oz of pretzels for a 5+ hour flight at dinner time. One step above Ryan Air/ several below Delta.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I liked the snacks and the flight attendants were friendly.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

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

Information on your arrival and departure airports