HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$81+ Cheap flights from Portland (PDX) to Missouri

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STL
Mar 13 — Mar 201
Thu 3/13
Thu 3/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Missouri with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Missouri

Keep the following information in mind while searching for Portland to Missouri flight deals. Data was last updated March 8, 2025.

Round-trip from

$160
(CheapOair)

One-way from

$81
(CheapOair)

Good round-trip deal

$441 or less

Good one-way deal

$298 or less
From Portland to Missouri
Search Deals
One-way flight from Portland to Missouri
Search Deals
Price to beat on a round-trip flight from Portland to Missouri.
Search Deals
Price to beat on a one-way flight from Portland to Missouri.
Search Deals

Find flight deals from Portland to Missouri

Cheapest flights from Portland to Missouri
Explore the most affordable flight options available from Portland to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

This CheapOair deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/39:21 pmPDX - STL
1 stop18h 22mFrontier
Mon 4/76:51 pmSTL - PDX
1 stop7h 46mFrontier
Deal found 3/7$170
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/23:02 pmPDX - STL
1 stop6h 57mAlaska Airlines
Tue 4/86:44 amSTL - PDX
1 stop6h 08mAlaska Airlines
Deal found 3/7$199
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/175:26 pmPDX - STL
1 stop5h 16mDelta
Mon 4/217:15 pmSTL - PDX
1 stop6h 29mDelta
Deal found 3/7$227
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:31 amPDX - SGF
1 stop6h 16mAmerican Airlines
Sat 4/192:19 pmSGF - PDX
1 stop6h 24mAmerican Airlines
Deal found 3/6$229
This Booking.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/221:45 pmPDX - STL
1 stop21h 55mMultiple Airlines
Sun 5/2510:20 amSTL - PDX
1 stop9h 11mMultiple Airlines
Deal found 3/6$245
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1112:59 amPDX - SGF
2 stops11h 44mDelta
Sat 4/196:00 amSGF - PDX
2 stops12h 21mDelta
Deal found 3/6$265
This Cheapflightsfares deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1711:10 amPDX - MCI
1 stop6h 03mSpirit Airlines
Sun 5/258:08 pmMCI - PDX
1 stop14h 04mSpirit Airlines
Deal found 3/6$266
This Travelocity deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2210:47 amPDX - MCI
2 stops11h 12mMultiple Airlines
Mon 4/288:40 pmMCI - PDX
1 stop6h 02mMultiple Airlines
Deal found 3/6$279
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/510:21 amPDX - STL
2 stops9h 29mUnited Airlines
Wed 4/95:35 pmSTL - PDX
1 stop7h 01mUnited Airlines
Deal found 3/7$282
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:59 pmPDX - STL
1 stop7h 19mAmerican Airlines
Mon 8/47:46 pmSTL - PDX
1 stop6h 50mAmerican Airlines
Deal found 3/6$293
This Southwest deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/102:50 pmPDX - STL
1 stop7h 00mSouthwest
Wed 5/1411:05 amSTL - PDX
2 stops9h 55mSouthwest
Deal found 3/7$298
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1012:50 amPDX - MCI
1 stop7h 35mDelta
Wed 5/143:35 pmMCI - PDX
1 stop9h 06mDelta
Deal found 3/7$307

Find flights from Portland to Missouri within your budget

Customize your flight search to find flights from Portland 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, Cheapflights users made 2,558,603 searches. Data last updated March 8, 2025.

Fly from

Portland

Fly to

Missouri

Route

Depart

Return

Price

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Thu 4/3

9:21 pm-5:43 pm

1 stop18h 22m

Lambert-St Louis

Mon 4/7

6:51 pm-12:37 am

1 stop7h 46m

$170

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Wed 4/2

3:02 pm-11:59 pm

1 stop6h 57m

Lambert-St Louis

Tue 4/8

6:44 am-10:52 am

1 stop6h 08m

$199

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Thu 4/17

5:26 pm-12:42 am

1 stop5h 16m

Lambert-St Louis

Mon 4/21

7:15 pm-11:44 pm

1 stop6h 29m

$227

PortlandSpringfield

PDX - SGF

PDXSGF

Portland

Wed 4/16

5:31 am-1:47 pm

1 stop6h 16m

Springfield-Branson

Sat 4/19

2:19 pm-6:43 pm

1 stop6h 24m

$229

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Thu 5/22

1:45 pm-1:40 pm

1 stop21h 55m

Lambert-St Louis

Sun 5/25

10:20 am-5:31 pm

1 stop9h 11m

$245

PortlandSpringfield

PDX - SGF

PDXSGF

Portland

Fri 4/11

12:59 am-2:43 pm

2 stops11h 44m

Springfield-Branson

Sat 4/19

6:00 am-4:21 pm

2 stops12h 21m

$265

PortlandKansas City

PDX - MCI

PDXMCI

Portland

Sat 5/17

11:10 am-7:13 pm

1 stop6h 03m

Kansas City

Sun 5/25

8:08 pm-8:12 am

1 stop14h 04m

$266

PortlandKansas City

PDX - MCI

PDXMCI

Portland

Tue 4/22

10:47 am-11:59 pm

2 stops11h 12m

Kansas City

Mon 4/28

8:40 pm-12:42 am

1 stop6h 02m

$279

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Sat 4/5

10:21 am-9:50 pm

2 stops9h 29m

Lambert-St Louis

Wed 4/9

5:35 pm-10:36 pm

1 stop7h 01m

$282

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Sat 5/10

2:50 pm-11:50 pm

1 stop7h 00m

Lambert-St Louis

Wed 5/14

11:05 am-7:00 pm

2 stops9h 55m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 39 results
1
2
3
4

Best time to book a flight from Portland to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portland to Missouri

Get recent, data-driven insights about flights from Portland to Missouri including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland to Missouri?

Currently, August is the cheapest month in which you can book a flight from Portland to Missouri (average of $311). Flying from Portland to Missouri in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to MO?

Find hourly flight availability from Portland to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 8, 2025.

When flying from Portland to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missouri, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated March 8, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Portland to Missouri. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest
8.1
Very good
4,314 reviews
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines
8.0
Very good
9,714 reviews
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta
8.0
Very good
8,024 reviews
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines
7.9
Good
2,318 reviews
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines
7.4
Good
8,649 reviews
Southwest
8.1
Very good
4,314 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Portland to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Missouri?

    Most people fly from Portland (PDX) if they book a flight from Portland to Missouri. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • What are the cheapest airlines to fly from Portland to Missouri one-way?

    $81 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Alaska Airlines, with prices starting from $86 and $99, respectively.

  • What are the most popular routes from Portland to Missouri?

    The most popular flight routes from Portland to Missouri are Portland - Kansas City, Portland - Lambert-St Louis and Portland - Springfield-Branson.

  • Can I find deals for flights from Portland to Missouri that include hotel bookings?

    Yes. In addition to deals on Portland to Missouri flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Missouri?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Missouri.

  • Can I find deals for business class flights from Portland to Missouri?

    Yes. Cheapflights offers flight deals from Portland to Missouri by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Portland to Missouri (average of $311). Flying from Portland to Missouri in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Los Angeles flights
Portland to Sky Harbor Intl flights
Portland to Las Vegas flights
Portland to Newark flights
Portland to John F Kennedy Intl flights
Portland to Honolulu flights
Portland to Ontario flights
Portland to Dallas/Fort Worth flights
Portland to Burbank flights
Portland to San Diego flights
Portland to O'Hare Intl flights
Portland to Santa Ana flights
Portland to Orlando flights
Portland to Dulles Intl flights
Portland to San Francisco flights
Portland to Nashville flights
Portland to Denver flights
Portland to LaGuardia flights
Portland to Kahului flights
Portland to Reagan-National flights
Portland to Palm Springs flights
Portland to Miami flights
Portland to New Orleans flights
Portland to Salt Lake City flights
Portland to Boston flights
Portland to Austin flights
Portland to Hobby flights
Portland to Minneapolis flights
Boise to Los Angeles flights
Portland to Kailua-Kona flights
Portland to Midway flights
Boise to Las Vegas flights
Portland to Atlanta flights
Portland to George Bush Intcntl flights
Portland to Oakland flights
Boise to Seattle flights
Portland to Baltimore flights
Portland to Albuquerque flights
Boise to Sky Harbor Intl flights
Eugene to Los Angeles flights
Portland to San Jose flights
Redmond to Denver flights
Portland to Sacramento flights
Portland to Detroit flights
Portland to Lihue flights
Boise to Santa Ana flights
Boise to Denver flights
Portland to Love Field flights
Portland to Reno flights
Portland to Tucson flights

Top 7 airlines flying from Portland to Missouri

Discover the top 7 airlines that operate flights from Portland to Missouri. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$111Average$191FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$139Average$191FlexibilityNo cancel feeOn-time65%
DeltaCheapest$195Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$197Average$458FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$228Average$476FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$481FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$294Average$495FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.