How many flights depart from St. Louis to Oregon on average per week?

As of April 2026, 1 flights take off from St. Louis and land in Oregon each week. The most common flight departure day for this route is Sat, with 100% of weekly flights taking off on this day.

What is the cheapest airline that flies from Lambert-St Louis to Oregon?

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from Lambert-St Louis to Oregon

What airlines fly to Oregon?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Oregon from St. Louis according to our data. Delta is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 6 different airlines that fly to Oregon on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Oregon?

Prices for flights from Lambert-St Louis Airport to Oregon refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Oregon?

There are 6 operators available for flights from Lambert-St Louis Airport to Oregon as of April 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Oregon?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Oregon.

What documentation or ID do you need to fly to Oregon?

The travel and health documents you'll need for your trip to Oregon may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oregon. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$86 Cheap Flights from St. Louis to Oregon in 2026

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Find the cheapest flights from St. Louis to Oregon

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:51 pm - 8:51 pm

STL

PDX

28h 00m

1 stop

8:46 pm - 6:06 pm

PDX

STL

19h 20m

1 stop

$196Frontier

Wed, May 6 - Mon, May 11

9:55 pm - 8:59 am

STL

PDX

13h 04m

1 stop

11:15 am - 7:21 pm

PDX

STL

6h 06m

1 stop

$205Frontier

Thu, Apr 23 - Sun, Apr 26

7:00 am - 3:33 pm

STL

BOI

9h 33m

1 stop

2:57 pm - 11:59 pm

BOI

STL

8h 02m

1 stop

$317Alaska Airlines

Sat, May 2 - Tue, May 5

5:33 pm - 10:50 pm

STL

EUG

7h 17m

1 stop

4:00 pm - 4:37 pm

EUG

STL

22h 37m

1 stop

$350Alaska Airlines

Wed, May 27 - Mon, Jun 1

10:25 am - 9:31 pm

STL

MFR

13h 06m

2 stops

5:00 am - 2:28 pm

MFR

STL

7h 28m

1 stop

$354United Airlines

Sat, May 2 - Sat, May 9

6:45 pm - 11:57 pm

STL

BOI

6h 12m

1 stop

2:18 pm - 11:35 pm

BOI

STL

8h 17m

1 stop

$361Delta

Mon, Apr 27 - Wed, May 6

5:15 pm - 12:45 am

STL

BOI

8h 30m

2 stops

4:05 pm - 11:15 pm

BOI

STL

6h 10m

1 stop

$366Southwest

Mon, Apr 27 - Wed, May 6

7:59 pm - 11:43 pm

STL

EUG

5h 44m

1 stop

5:10 am - 4:46 pm

EUG

STL

9h 36m

2 stops

$371Delta

Mon, May 11 - Sat, May 16

6:55 pm - 12:25 am

STL

BOI

6h 30m

1 stop

4:05 pm - 11:55 pm

BOI

STL

6h 50m

1 stop

$383Southwest

Tue, Jun 23 - Wed, Jun 24

4:15 pm - 8:58 pm

STL

RDM

6h 43m

1 stop

5:35 am - 8:43 pm

RDM

STL

13h 08m

2 stops

$400United Airlines

Sat, May 16 - Tue, May 19

Frontier flights from St. Louis to Oregon

Our best Frontier deals on St. Louis to Oregon flight tickets

Frontier

May 6

STL6:51 pmLambert-St Louis

28h 00m

1 stop

PDX8:51 pmPortland

May 11

PDX8:46 pmPortland

19h 20m

1 stop

STL6:06 pmLambert-St Louis

$196

Frontier

Apr 23

STL9:55 pmLambert-St Louis

13h 04m

1 stop

PDX8:59 amPortland

Apr 26

PDX11:15 amPortland

6h 06m

1 stop

STL7:21 pmLambert-St Louis

$205

Frontier

May 7

STL12:16 pmLambert-St Louis

10h 35m

1 stop

PDX8:51 pmPortland

May 10

PDX12:35 pmPortland

28h 48m

1 stop

STL7:23 pmLambert-St Louis

$221

Southwest flights from St. Louis to Oregon

Our best Southwest deals on St. Louis to Oregon flight tickets

Southwest

May 5

STL1:45 pmLambert-St Louis

9h 00m

2 stops

PDX8:45 pmPortland

May 9

PDX11:55 pmPortland

7h 35m

1 stop

STL9:30 amLambert-St Louis

$258

Southwest

May 5

STL1:45 pmLambert-St Louis

9h 00m

2 stops

PDX8:45 pmPortland

May 9

PDX10:25 amPortland

8h 00m

2 stops

STL8:25 pmLambert-St Louis

$263

Southwest

Apr 24

STL1:45 pmLambert-St Louis

12h 25m

1 stop

PDX12:10 amPortland

Apr 28

PDX12:45 pmPortland

8h 25m

2 stops

STL11:10 pmLambert-St Louis

$288

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/6

6:51 pm-8:51 pm

1 stop28h 00m

Portland

Mon 5/11

8:46 pm-6:06 pm

1 stop19h 20m

$196

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 4/23

9:55 pm-8:59 am

1 stop13h 04m

Portland

Sun 4/26

11:15 am-7:21 pm

1 stop6h 06m

$205

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sat 5/2

7:00 am-3:33 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Tue 5/5

2:57 pm-11:59 pm

1 stop8h 02m

$317

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Wed 5/27

5:33 pm-10:50 pm

1 stop7h 17m

Eugene

Mon 6/1

4:00 pm-4:37 pm

1 stop22h 37m

$350

St. LouisMedford

STL - MFR

STLMFR

Lambert-St Louis

Sat 5/2

10:25 am-9:31 pm

2 stops13h 06m

Medford

Sat 5/9

5:00 am-2:28 pm

1 stop7h 28m

$354

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Mon 4/27

6:45 pm-11:57 pm

1 stop6h 12m

Boise Air Term. Gowen Fld

Wed 5/6

2:18 pm-11:35 pm

1 stop8h 17m

$361

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Mon 4/27

5:15 pm-12:45 am

2 stops8h 30m

Boise Air Term. Gowen Fld

Wed 5/6

4:05 pm-11:15 pm

1 stop6h 10m

$366

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 5/11

7:59 pm-11:43 pm

1 stop5h 44m

Eugene

Sat 5/16

5:10 am-4:46 pm

2 stops9h 36m

$371

Quickest round-trip

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Tue 6/23

6:55 pm-12:25 am

1 stop6h 30m

Boise Air Term. Gowen Fld

Wed 6/24

4:05 pm-11:55 pm

1 stop6h 50m

$383

St. LouisRedmond

STL - RDM

STLRDM

Lambert-St Louis

Sat 5/16

4:15 pm-8:58 pm

1 stop6h 43m

Bend/Redmond

Tue 5/19

5:35 am-8:43 pm

2 stops13h 08m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Oregon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Oregon?

The month of January is, on average, the cheapest month to fly to Oregon from St. Louis, with most prices found around $292. The month of September is another great option to travel to Oregon, with average flight prices from St. Louis averaging around $299.

What is the cheapest day to depart on your flight to Oregon?

On average, the least expensive day to fly to Oregon from St. Louis is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $278. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Oregon is Monday, with ticket prices averaging around $594.

What is the cheapest time of day to depart on your flight to Oregon?

According to our data, the cheapest time of day to fly to Oregon is in the afternoon. momondo users have found flights departing from St. Louis to Oregon in the afternoon for as low as $388. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Oregon are more costly at noon, with an average ticket price of $556. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Oregon flight route?

Fly from Lambert-St Louis to Portland for the best Lambert-St Louis - Oregon flight prices

How far in advance should I book a flight to Oregon?

You are more likely to see cheaper flights to Oregon from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $356 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from St. Louis for as low as $274 on momondo.

What cabin class options are available on Lambert-St Louis to Oregon flights?

There are 3 cabin classes available to choose from on Lambert-St Louis to Oregon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Oregon flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Oregon.

Cheap St. Louis to Oregon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Oregon

Best Price Found	$144
Fastest flight time	4h 10m
Direct flights	Every day
Airports in Oregon	64 airports

The best one-way flight to Oregon from St. Louis in the past 72 hours is $144. The best round-trip flight deal from St. Louis to Oregon found on momondo in the last 72 hours is $269.

The fastest flight from St. Louis to Oregon takes 4h 10m

Direct flights go from St. Louis to Oregon every day.

There are 64 airports in Oregon. From St. Louis there are direct flights to Portland (PDX).

Search flight deals

Frequently asked questions about flying from St. Louis to Oregon

When did momondo last update prices for flights from Lambert-St Louis Airport to Oregon?
Prices for flights from Lambert-St Louis Airport to Oregon refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Oregon?
There are 6 operators available for flights from Lambert-St Louis Airport to Oregon as of April 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Oregon?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Oregon.
What documentation or ID do you need to fly to Oregon?
The travel and health documents you'll need for your trip to Oregon may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oregon. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Oregon?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Oregon is Boeing 737-900 Passenger/BBJ3 (winglets), representing 56.82% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 13.64%, Boeing 737 MAX 8 at 12.50%, and Boeing 737 MAX 9 at 9.09%.

Best airlines flying from St. Louis to Oregon

Compare and see reviews for airlines that fly from St. Louis to Oregon with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $149	Free Cancellation	Rating 5.7 3,001 reviews	Search Frontier flights
Delta	PriceFrom $158	Free Cancellation	Rating 7.9 8,380 reviews	Search Delta flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.1 11,553 reviews	Search American Airlines flights
Southwest	PriceFrom $226	Free Cancellation	Rating 8.0 4,344 reviews	Search Southwest flights
United Airlines	PriceFrom $228	Free Cancellation	Rating 7.4 9,542 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $249	Free Cancellation	Rating 7.9 12,160 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Oregon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Oregon for you.

Can I find flights from St. Louis to Oregon with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Oregon flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Oregon?

Once you have performed a search for St. Louis to Oregon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Oregon right now. Can momondo alert me if prices change?

Price alerts on flights to Oregon from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Oregon trip

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Popular cities in Oregon

Flights to New Yorkfrom $55

Flights to Los Angelesfrom $56

Flights to Orlandofrom $55

Flights to Miamifrom $55

Flights to Chicagofrom $58

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $56

Flights to Bostonfrom $65

Flights to Atlantafrom $48

Flights to Dallasfrom $57

Flights to Fort Lauderdalefrom $47

Cheap flights from St. Louis to Oregon from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Oregon departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to Oregon from

How to get the cheapest flight ticket from St. Louis to Oregon

What is the cheapest month to fly to Oregon?

What is the cheapest day to depart on your flight to Oregon?

What is the cheapest time of day to depart on your flight to Oregon?

What is the cheapest Lambert-St Louis to Oregon flight route?

How far in advance should I book a flight to Oregon?

What cabin class options are available on Lambert-St Louis to Oregon flights?

Can stopping save me money on St. Louis to Oregon flights?

What is the cheapest airline that flies from Lambert-St Louis to Oregon?

What airlines fly to Oregon?

How many flights depart from St. Louis to Oregon on average per week?

Cheap St. Louis to Oregon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Oregon

Best Price Found

Fastest flight time

Direct flights

Airports in Oregon

Frequently asked questions about flying from St. Louis to Oregon

Best airlines flying from St. Louis to Oregon

Compare and see reviews for airlines that fly from St. Louis to Oregon with momondo

Why use momondo?

An easier way to manage your Oregon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Oregon

Popular cities in Oregon

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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