$75 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 3/19. 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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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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Best Oregon Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Portland
Portland1 stop$150
Eugene
Eugene2 stops$306
Redmond
Redmond2 stops$286
Medford
Medford2 stops$326
Boise
Boise1 stop$180

Good to know

Low season

February

High season

July

Cheapest flight

$75
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 11% 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.

See more FAQs

Top tips for finding cheap flights to Oregon

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly from St. Louis is January.
  • Morning departure is around 21% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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 9713 reviews
8.5Crew
7.1Food
8.2Boarding
7.9Comfort
7.1Entertainment
Airline reviews

I understand bottom line but..... You have to get more room in the seats. Why not give full cans for the drink service, little things go a long way. Thank you

6.0 GoodJonathan, Mar 2025STL - SEA
Read more Alaska Airlines reviews

I understand bottom line but..... You have to get more room in the seats. Why not give full cans for the drink service, little things go a long way. Thank you

It was a very smooth fast flight, crew was prompt and comforting. Alaska airlines are the best.

It was a really smooth flight. I hate heights. All made it feel smooth. Thankyou

I’m still waiting on my luggage. They canceled my flight on valentines day and my girlfriend broke up with me. Alaska airlines literally ruined my life.

Quick boarding, efficient and pleasant crew. Wish they worked the mic better in the terminal to be understood more clearly.

They left my luggage behind in Seattle. However, they delivered it to my home the next morning.

Overall good , very dependable Airline and all its staff, etc but what could have been improved was allowing more than 40 minutes during layover in Portland as ultimately that brief layover was reduced to about 10 minutes with delays and causes us to panic as we rushed thru the Airport to our connecting flight. The Plane arrives at the Portland Airport very far from one Gate to another but thankfully the staff waited for us at the last minute to Board and were very caring and compassionate and assisted us in every regard . Thank you

Flight crew had the courtesy to ask passengers from my first flight to allow those of us disembarking to go first so that we could make it onto our connecting flights. Worked like a charm. Both crew and fellow passengers working together for a better outcome for all.

We missed our connection to Portland and ended up having to drive.

I had to miss that flight as my first flight was cancelled in Idaho Falls. Bad day all around . Couldn’t be rebooked!

Delta is a premier airline so my expectations are most always met.

Seats are much much more comfortable than United, which is what I usually fly

Zero updates from the pilots for 30 minutes in the tarmac

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Kind staff. Snacks are small but that’s the new normal.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Standard. No different than a discount carrier on a short trip.

At least it was a short flight. Greyhound with wings.

They have lost any customer service care and support. Terrible airline now and been for awhile.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The flight was delayed leaving Miami. When we arrived in Charlotte, we were unable to park at our scheduled gate. We had to wait another 30-45 minutes before we could park at a different gate. All in all, we were delayed by almost two hours arriving in Charlotte.

Bigger seats. Board back to front! Disembark front to back!

Would be great if Frontier can Assign Seats together under one PNR

Early arrival. Great landing. Pilot updates. Too cold in plane.

Better to put road truck seat in plain it so uncomfortable can not adjustable and fill metal don’t have cushions at all it’s very hard to travel for five hours

Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!

They cancelled the flight and did nothing. I should be compensated for my uber rides to and from airport. Not a good service by frontier or kayak.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

food not having to pay for it, reclining seat would be nice, more leg room, HEAT!!!!!!!

An absolutely fraudulent experience. Extremely unprofessional. Terrible in all ways possible. Rude staff, flight attendants, and deceptive "policies."

The worst service , the agents from the counter are really bad . Poor customer service . They didnt help me to get in the flight . I was on line when they close the flight without telling and I couldn’t board the plane . I will like to get my money back ey back because it was their fault. Really bad management , bad manners, bad additud

The check in process was a mess for no reason. I spent an hour waiting in line trying to get them to print my boarding pass and as a result I missed my flight.

Book cheap flights from St. Louis to Oregon

Recent round-trip flight deals

 
These are the cheapest round-trip flights from St. Louis to Oregon found on KAYAK in the last 72 hours.
4/9Wed
1 stopFrontier
7h 46mSTL-PDX
4/15Tue
1 stopFrontier
21h 07mPDX-STL
$150
4/9Wed
1 stopFrontier
7h 46mSTL-PDX
4/13Sun
1 stopFrontier
24h 26mPDX-STL
$170
4/9Wed
1 stopDelta
8h 44mSTL-PDX
4/15Tue
1 stopDelta
5h 28mPDX-STL
$199
4/7Mon
1 stopDelta
6h 14mSTL-PDX
4/15Tue
1 stopDelta
8h 29mPDX-STL
$213
4/1Tue
1 stopAlaska Airlines
6h 48mSTL-BOI
4/8Tue
1 stopAlaska Airlines
14h 59mBOI-STL
$226
4/19Sat
1 stopAmerican Airlines
8h 07mSTL-BOI
4/26Sat
1 stopAmerican Airlines
8h 31mBOI-STL
$227
4/9Wed
1 stopUnited Airlines
7h 01mSTL-PDX
4/15Tue
2 stopsUnited Airlines
9h 53mPDX-STL
$260
4/1Tue
1 stopAmerican Airlines
7h 33mSTL-PDX
4/8Tue
1 stopAmerican Airlines
7h 45mPDX-STL
$263
4/1Tue
2 stopsAlaska Airlines
15h 30mSTL-PDX
4/8Tue
1 stopAlaska Airlines
6h 57mPDX-STL
$271
4/12Sat
1 stopUnited Airlines
8h 46mSTL-PDX
4/12Sat
1 stopUnited Airlines
9h 04mPDX-STL
$317

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Oregon found on KAYAK in the last 72 hours.
3/19Wed
1 stopFrontier
7h 34mSTL-PDX
$75
5/1Thu
1 stopFrontier
10h 31mSTL-PDX
$91
5/28Wed
1 stopAmerican Airlines
8h 37mSTL-PDX
$114
7/4Fri
1 stopDelta
5h 39mSTL-PDX
$140
3/29Sat
1 stopAlaska Airlines
8h 57mSTL-PDX
$149
4/2Wed
2 stopsDelta
11h 23mSTL-PDX
$153
3/18Tue
1 stopAmerican Airlines
8h 59mSTL-PDX
$164
4/1Tue
1 stopAlaska Airlines
6h 08mSTL-PDX
$173
3/18Tue
2 stopsUnited Airlines
14h 05mSTL-PDX
$214
5/4Sun
1 stopUnited Airlines
7h 39mSTL-PDX
$219

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Last minute flights from St. Louis to Oregon

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Oregon that are departing in the next 10 days.
3/7Fri
multi-stopFrontier
7h 28mSTL-PDX
3/11Tue
multi-stopFrontier
21h 10mPDX-STL
$327
3/7Fri
multi-stopFrontier
7h 28mSTL-PDX
3/11Tue
multi-stopFrontier
21h 10mPDX-STL
$387
3/8Sat
multi-stopDelta
9h 14mSTL-PDX
3/15Sat
multi-stopDelta
7h 33mPDX-STL
$400
3/4Tue
multi-stopAlaska Airlines
9h 24mSTL-PDX
3/6Thu
multi-stopAlaska Airlines
8h 26mPDX-STL
$472
3/4Tue
multi-stopDelta
7h 07mSTL-PDX
3/5Wed
multi-stopDelta
8h 00mPDX-STL
$473
3/8Sat
multi-stopSouthwest
7h 55mSTL-PDX
3/15Sat
multi-stopSouthwest
9h 50mPDX-STL
$491
3/8Sat
multi-stopUnited Airlines
11h 25mSTL-PDX
3/15Sat
multi-stopUnited Airlines
10h 45mPDX-STL
$500
3/4Tue
multi-stopSouthwest
9h 20mSTL-PDX
3/6Thu
multi-stopSouthwest
5h 50mPDX-STL
$511
3/7Fri
multi-stopUnited Airlines
8h 38mSTL-PDX
3/11Tue
multi-stopUnited Airlines
12h 34mPDX-STL
$568
3/5Wed
multi-stopAlaska Airlines
7h 35mSTL-EUG
3/7Fri
multi-stopAlaska Airlines
18h 22mEUG-STL
$870

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

Information on your arrival and departure airports

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