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Cheap flights from Missouri to Oregon from $100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Oregon departing on 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Oregon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 am - 12:33 pm
STL
-
PDX
7h 33m
1 stop
Delta Logo
12:31 am - 10:38 am
PDX
-
STL
8h 07m
1 stop
$205Delta
Tue, Jun 2 - Mon, Jun 8
Delta Logo
1:59 pm - 10:02 pm
STL
-
PDX
10h 03m
1 stop
Delta Logo
5:05 pm - 12:30 am
PDX
-
STL
5h 25m
1 stop
$224Delta
Wed, May 13 - Mon, May 18
American Airlines Logo
6:07 pm - 11:48 pm
MCI
-
PDX
7h 41m
1 stop
American Airlines Logo
11:40 pm - 10:15 am
PDX
-
MCI
8h 35m
1 stop
$237American Airlines
Mon, May 11 - Tue, May 19
Southwest Logo
11:35 am - 4:50 pm
MCI
-
PDX
7h 15m
1 stop
Southwest Logo
6:35 am - 5:00 pm
PDX
-
MCI
8h 25m
2 stops
$242Southwest
Sat, Aug 22 - Wed, Aug 26
American Airlines Logo
1:45 pm - 9:51 pm
STL
-
PDX
10h 06m
1 stop
American Airlines Logo
10:59 pm - 8:31 am
PDX
-
STL
7h 32m
1 stop
$244American Airlines
Fri, May 29 - Wed, Jun 3
Southwest Logo
5:35 pm - 10:25 pm
MCI
-
BOI
5h 50m
1 stop
Southwest Logo
6:00 am - 2:45 pm
BOI
-
MCI
7h 45m
1 stop
$252Southwest
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
5:59 pm - 10:54 pm
STL
-
PDX
6h 55m
1 stop
United Airlines Logo
7:45 pm - 5:47 am
PDX
-
STL
8h 02m
1 stop
$258United Airlines
Fri, May 15 - Wed, May 20
Alaska Airlines Logo
7:00 am - 3:33 pm
STL
-
BOI
9h 33m
1 stop
Alaska Airlines Logo
4:19 pm - 11:54 pm
BOI
-
STL
6h 35m
1 stop
$302Alaska Airlines
Sat, May 9 - Sat, May 16
United Airlines Logo
7:00 am - 11:54 am
MCI
-
RDM
6h 54m
1 stop
United Airlines Logo
5:00 am - 12:43 pm
RDM
-
MCI
5h 43m
1 stop
$329United Airlines
Wed, May 13 - Sun, May 17
Alaska Airlines Logo
5:33 pm - 10:50 pm
STL
-
EUG
7h 17m
1 stop
Alaska Airlines Logo
7:59 pm - 3:16 pm
EUG
-
STL
17h 17m
1 stop
$332Alaska Airlines
Tue, May 19 - Tue, May 26

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Frontier flights from Missouri to Oregon

Our best Frontier deals on Missouri to Oregon flight tickets
Frontier
Jun 5
MCI2:34 pmKansas City
28h 12m
1 stop
PDX4:46 pmPortland
Jun 9
PDX5:20 pmPortland
17h 40m
1 stop
MCI1:00 pmKansas City
$228
Frontier
May 20
MCI2:34 pmKansas City
21h 46m
2 stops
PDX10:20 amPortland
May 26
PDX5:46 pmPortland
18h 03m
1 stop
MCI1:49 pmKansas City
$235
Frontier
May 29
MCI2:34 pmKansas City
28h 12m
1 stop
PDX4:46 pmPortland
Jun 1
PDX12:35 pmPortland
23h 14m
1 stop
MCI1:49 pmKansas City
$241

American Airlines flights from Missouri to Oregon

Our best American Airlines deals on Missouri to Oregon flight tickets
American Airlines
May 11
MCI6:07 pmKansas City
7h 41m
1 stop
PDX11:48 pmPortland
May 19
PDX11:40 pmPortland
8h 35m
1 stop
MCI10:15 amKansas City
$237
American Airlines
May 29
STL1:45 pmLambert-St Louis
10h 06m
1 stop
PDX9:51 pmPortland
Jun 3
PDX10:59 pmPortland
7h 32m
1 stop
STL8:31 amLambert-St Louis
$244
American Airlines
Jun 2
STL7:00 amLambert-St Louis
8h 20m
1 stop
BOI2:20 pmBoise Air Term. Gowen Fld
Jun 9
BOI3:11 pmBoise Air Term. Gowen Fld
7h 45m
1 stop
STL11:56 pmLambert-St Louis
$263

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Oregon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 21, 2026.
Use the filters below to find and compare flights from Missouri to Oregon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 6/2

7:00 am-12:33 pm

1 stop7h 33m

Portland

Mon 6/8

12:31 am-10:38 am

1 stop8h 07m

$205

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/13

1:59 pm-10:02 pm

1 stop10h 03m

Portland

Mon 5/18

5:05 pm-12:30 am

1 stop5h 25m

$224

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Mon 5/11

6:07 pm-11:48 pm

1 stop7h 41m

Portland

Tue 5/19

11:40 pm-10:15 am

1 stop8h 35m

$237

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 8/22

11:35 am-4:50 pm

1 stop7h 15m

Portland

Wed 8/26

6:35 am-5:00 pm

2 stops8h 25m

$242

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 5/29

1:45 pm-9:51 pm

1 stop10h 06m

Portland

Wed 6/3

10:59 pm-8:31 am

1 stop7h 32m

$244

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Tue 8/25

5:35 pm-10:25 pm

1 stop5h 50m

Boise Air Term. Gowen Fld

Tue 9/1

6:00 am-2:45 pm

1 stop7h 45m

$252

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 5/15

5:59 pm-10:54 pm

1 stop6h 55m

Portland

Wed 5/20

7:45 pm-5:47 am

1 stop8h 02m

$258

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sat 5/9

7:00 am-3:33 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Sat 5/16

4:19 pm-11:54 pm

1 stop6h 35m

$302
Quickest round-trip

Kansas CityRedmond

MCI - RDM

MCIRDM

Kansas City

Wed 5/13

7:00 am-11:54 am

1 stop6h 54m

Bend/Redmond

Sun 5/17

5:00 am-12:43 pm

1 stop5h 43m

$329

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/19

5:33 pm-10:50 pm

1 stop7h 17m

Eugene

Tue 5/26

7:59 pm-3:16 pm

1 stop17h 17m

$332

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Oregon from

How to get the cheapest flight ticket from Missouri 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

What is the cheapest month to fly to Oregon?

The month of January is, on average, the cheapest month to fly to Oregon from Missouri, with most prices found around $292. The month of September is another great option to travel to Oregon, with average flight prices from Missouri averaging around $296.

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

On average, the least expensive day to fly to Oregon from Missouri is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $289. 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 Missouri to Oregon in the afternoon for as low as $398. 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 $562. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Missouri to Oregon flight route?

Fly from Lambert-St Louis to Portland for the best Missouri - 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 Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $353 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from Missouri for as low as $279 on momondo.

What cabin class options are available on Missouri to Oregon flights?

There are 4 cabin classes available to choose from on Missouri 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 Missouri to Oregon flights?

You could potentially save up to 28% on your flight if you consider stops on a Missouri to Oregon flight.

Cheap Missouri to Oregon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Oregon

Best Price Found

$164

Fastest flight time

3h 52m

Direct flights

Every day

Airports in Oregon

64 airports
The best one-way flight to Oregon from Missouri in the past 72 hours is $164. The best round-trip flight deal from Missouri to Oregon found on momondo in the last 72 hours is $309.
The fastest flight from Missouri to Oregon takes 3h 52m
Direct flights go from Missouri to Oregon every day.
There are 64 airports in Oregon. From Missouri there are direct flights to Portland (PDX).
Search flight deals

Frequently asked questions about flying from Missouri to Oregon

  • When did momondo last update prices for flights from Missouri to Oregon?

    Prices for flights from Missouri to Oregon refresh daily.

  • How many operators does momondo search for flights from Missouri to Oregon?

  • How old do you have to be to fly from Missouri 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 Missouri to Oregon.

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

    The required travel and health documents for your Oregon trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oregon. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Missouri to Oregon?

Best airlines flying from Missouri to Oregon

Compare and see reviews for airlines that fly from Missouri to Oregon with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $83Free CancellationRating
7.9
8,434 reviews
Search Delta flights
FrontierPriceFrom $112Free CancellationRating
5.6
2,981 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $153Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $177Free CancellationRating
7.9
12,269 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $196Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
United AirlinesPriceFrom $212Free CancellationRating
7.4
9,613 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Oregon?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oregon from Missouri.

Can I find flights from Missouri to Oregon with flexible booking policies on momondo?

Yes. All flights to Oregon from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Missouri to Oregon?

Once all potential Missouri to Oregon flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Oregon from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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.
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Find better results for your trip to Oregon

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