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Cheap flights from Oregon to Missouri 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 Oregon to Missouri departing on 6/9. 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

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Find the cheapest flights from Oregon to Missouri

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:16 pm - 7:23 pm
PDX
-
STL
24h 07m
1 stop
Frontier Logo
8:08 pm - 4:57 pm
STL
-
PDX
22h 49m
1 stop
$220Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
3:22 pm - 1:22 pm
PDX
-
MCI
20h 00m
1 stop
Frontier Logo
2:17 pm - 2:27 pm
MCI
-
PDX
26h 10m
1 stop
$241Frontier
Sun, Sep 13 - Tue, Sep 15
United Airlines Logo
2:14 pm - 12:57 am
PDX
-
SGF
8h 43m
1 stop
United Airlines Logo
5:30 am - 9:31 am
SGF
-
PDX
6h 01m
1 stop
$313United Airlines
Tue, Sep 29 - Sat, Oct 3
Alaska Airlines Logo
6:00 am - 2:17 pm
RDM
-
MCI
6h 17m
1 stop
Alaska Airlines Logo
6:12 pm - 10:24 pm
MCI
-
RDM
6h 12m
1 stop
$321Alaska Airlines
Wed, Oct 21 - Sat, Oct 24
Southwest Logo
3:00 pm - 10:25 pm
BOI
-
MCI
6h 25m
1 stop
Southwest Logo
5:05 pm - 12:25 am
MCI
-
BOI
8h 20m
1 stop
$327Southwest
Tue, Jun 23 - Tue, Jun 30
Delta Logo
1:43 pm - 10:29 pm
BOI
-
SGF
7h 46m
1 stop
Delta Logo
3:30 pm - 10:41 pm
SGF
-
BOI
8h 11m
1 stop
$329Delta
Mon, Oct 5 - Sun, Oct 11
Alaska Airlines Logo
1:32 pm - 11:59 pm
RDM
-
MCI
8h 27m
1 stop
Alaska Airlines Logo
6:13 am - 12:38 pm
MCI
-
RDM
8h 25m
1 stop
$339Alaska Airlines
Fri, Oct 9 - Mon, Oct 12
Delta Logo
1:25 pm - 11:06 pm
RDM
-
MCI
7h 41m
1 stop
Delta Logo
7:02 am - 11:44 am
MCI
-
RDM
6h 42m
1 stop
$350Delta
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
5:46 pm - 11:42 pm
BOI
-
SGF
4h 56m
1 stop
United Airlines Logo
5:50 am - 9:45 am
SGF
-
BOI
4h 55m
1 stop
$355United Airlines
Sat, Jun 6 - Sun, Jun 14
Southwest Logo
3:00 pm - 10:25 pm
BOI
-
MCI
6h 25m
1 stop
Southwest Logo
5:50 pm - 12:25 am
MCI
-
BOI
7h 35m
2 stops
$362Southwest
Tue, Jun 23 - Tue, Jun 30

Alaska Airlines flights from Oregon to Missouri

Our best Alaska Airlines deals on Oregon to Missouri flight tickets
Alaska Airlines
Jun 3
PDX10:37 amPortland
4h 00m
STL4:37 pmLambert-St Louis
Jun 6
STL5:33 pmLambert-St Louis
4h 17m
PDX7:50 pmPortland
$297
Alaska Airlines
Jun 4
PDX10:37 amPortland
4h 00m
STL4:37 pmLambert-St Louis
Jun 7
STL5:33 pmLambert-St Louis
4h 17m
PDX7:50 pmPortland
$299
Alaska Airlines
Oct 21
RDM1:32 pmBend/Redmond
8h 27m
1 stop
MCI11:59 pmKansas City
Oct 24
MCI6:13 amKansas City
8h 25m
1 stop
RDM12:38 pmBend/Redmond
$321

Frontier flights from Oregon to Missouri

Our best Frontier deals on Oregon to Missouri flight tickets
Frontier
Aug 12
PDX5:16 pmPortland
24h 07m
1 stop
STL7:23 pmLambert-St Louis
Aug 19
STL8:08 pmLambert-St Louis
22h 49m
1 stop
PDX4:57 pmPortland
$220
Frontier
Sep 13
PDX3:22 pmPortland
20h 00m
1 stop
MCI1:22 pmKansas City
Sep 15
MCI2:17 pmKansas City
26h 10m
1 stop
PDX2:27 pmPortland
$241
Frontier
Jun 16
BOI1:25 pmBoise Air Term. Gowen Fld
22h 35m
1 stop
MCI1:00 pmKansas City
Jun 20
MCI1:45 pmKansas City
23h 45m
1 stop
BOI12:30 pmBoise Air Term. Gowen Fld
$242

momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Missouri 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 May 15, 2026.
Use the filters below to find and compare flights from Oregon to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Wed 8/12

5:16 pm-7:23 pm

1 stop24h 07m

Lambert-St Louis

Wed 8/19

8:08 pm-4:57 pm

1 stop22h 49m

$220

PortlandKansas City

PDX - MCI

PDXMCI

Portland

Sun 9/13

3:22 pm-1:22 pm

1 stop20h 00m

Kansas City

Tue 9/15

2:17 pm-2:27 pm

1 stop26h 10m

$241

PortlandSpringfield

PDX - SGF

PDXSGF

Portland

Tue 9/29

2:14 pm-12:57 am

1 stop8h 43m

Springfield-Branson

Sat 10/3

5:30 am-9:31 am

1 stop6h 01m

$313

RedmondKansas City

RDM - MCI

RDMMCI

Bend/Redmond

Wed 10/21

6:00 am-2:17 pm

1 stop6h 17m

Kansas City

Sat 10/24

6:12 pm-10:24 pm

1 stop6h 12m

$321

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Tue 6/23

3:00 pm-10:25 pm

1 stop6h 25m

Kansas City

Tue 6/30

5:05 pm-12:25 am

1 stop8h 20m

$327

BoiseSpringfield

BOI - SGF

BOISGF

Boise Air Term. Gowen Fld

Mon 10/5

1:43 pm-10:29 pm

1 stop7h 46m

Springfield-Branson

Sun 10/11

3:30 pm-10:41 pm

1 stop8h 11m

$329

RedmondKansas City

RDM - MCI

RDMMCI

Bend/Redmond

Fri 10/9

1:32 pm-11:59 pm

1 stop8h 27m

Kansas City

Mon 10/12

6:13 am-12:38 pm

1 stop8h 25m

$339

RedmondKansas City

RDM - MCI

RDMMCI

Bend/Redmond

Tue 6/23

1:25 pm-11:06 pm

1 stop7h 41m

Kansas City

Tue 6/30

7:02 am-11:44 am

1 stop6h 42m

$350
Quickest round-trip

BoiseSpringfield

BOI - SGF

BOISGF

Boise Air Term. Gowen Fld

Sat 6/6

5:46 pm-11:42 pm

1 stop4h 56m

Springfield-Branson

Sun 6/14

5:50 am-9:45 am

1 stop4h 55m

$355

BoiseKansas City

BOI - MCI

BOIMCI

Boise Air Term. Gowen Fld

Tue 6/23

3:00 pm-10:25 pm

1 stop6h 25m

Kansas City

Tue 6/30

5:50 pm-12:25 am

2 stops7h 35m

$362

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 Missouri from

How to get the cheapest flight ticket from Oregon to Missouri

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 Missouri?

In general, July is the cheapest month to fly from Oregon to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $89. If you aren’t able to travel to Missouri during the month of July, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $98.

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

The cheapest day to depart from Oregon to Missouri is on a Wednesday when prices can be found for as low as $249. Flights from Oregon to Missouri on a Sunday will generally be more expensive and average around $532. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Missouri is in the morning. momondo users have found flights departing from Oregon to Missouri in the morning for as low as $374. 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 Missouri are more costly at noon, with an average ticket price of $679. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Oregon to Missouri flight route?

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

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

You are more likely to see cheaper flights to Missouri from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Oregon for as low as $263 on momondo.

Can stopping save me money on Oregon to Missouri flights?

You could potentially save up to 19% on your flight if you consider stops on a Oregon to Missouri flight.

Cheap Oregon to Missouri flight deals and tips

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

Best Price Found

$144

Fastest flight time

3h 15m

Direct flights

Every day

Airports in Missouri

55 airports
The best one-way flight to Missouri from Oregon in the past 72 hours is $144. The best round-trip flight deal from Oregon to Missouri found on momondo in the last 72 hours is $384.
The fastest flight from Oregon to Missouri takes 3h 15m
Direct flights go from Oregon to Missouri every day.
There are 55 airports in Missouri. From Oregon there are direct flights to Kansas City (MCI), Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Oregon to Missouri

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

    Prices for flights from Oregon to Missouri are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oregon to Missouri.

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

    The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Oregon to Missouri

Compare and see reviews for airlines that fly from Oregon to Missouri with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $75Free CancellationRating
5.6
2,951 reviews
Search Frontier flights
DeltaPriceFrom $108Free CancellationRating
7.9
8,453 reviews
Search Delta flights
Alaska AirlinesPriceFrom $179Free CancellationRating
7.9
12,367 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $186Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $196Free CancellationRating
8.0
4,299 reviews
Search Southwest flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,723 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights

Why use momondo?

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

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 Missouri from Oregon.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oregon to Missouri.

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

Price alerts on flights to Missouri from Oregon 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 Missouri trip

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