What airlines fly to Missouri?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Missouri from Portland, Maine according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 6 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Missouri?

United Airlines, Southwest, and Delta are the most popular carriers operating from Portland to Missouri

When did momondo last update prices for flights from Portland Airport to Missouri?

Prices for flights from Portland Airport to Missouri are updated daily.

How many operators does momondo search for flights from Portland Airport to Missouri?

There are 4 operators available for flights from Portland Airport to Missouri as of December 2025.

How old do you have to be to fly from Portland Airport to Missouri?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Missouri.

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

The required travel and health documents for your Missouri 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 Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$214 Cheap Flights from Portland to Missouri in 2025/26

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Find the cheapest flights from Portland, Maine to Missouri

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:29 am - 11:11 am

PWM

STL

24h 42m2 stops

5:42 pm - 9:07 am

STL

PWM

14h 25m1 stop

$268Multiple Airlines

Fri, Jan 23 - Sun, Jan 25

11:29 am - 11:11 am

PWM

STL

24h 42m2 stops

5:42 pm - 9:07 am

STL

PWM

14h 25m1 stop

$278Multiple Airlines

Fri, Jan 23 - Sun, Jan 25

6:00 am - 4:15 pm

PWM

SGF

11h 15m2 stops

12:01 pm - 11:22 pm

SGF

PWM

10h 21m2 stops

$299Delta

Wed, Jan 7 - Wed, Jan 14

5:30 am - 11:35 am

PWM

MCI

7h 05m1 stop

6:15 am - 2:55 pm

MCI

PWM

7h 40m1 stop

$304Southwest

Thu, Jan 1 - Tue, Jan 6

7:00 am - 12:15 pm

PWM

SGF

6h 15m1 stop

12:45 pm - 10:07 pm

SGF

PWM

8h 22m1 stop

$309American Airlines

Wed, Jan 7 - Wed, Jan 14

5:30 am - 11:35 am

PWM

MCI

7h 05m1 stop

7:35 am - 2:55 pm

MCI

PWM

6h 20m2 stops

$309Southwest

Thu, Jan 1 - Wed, Jan 7

5:30 am - 12:17 pm

PWM

MCI

7h 47m1 stop

6:30 am - 12:03 pm

MCI

PWM

4h 33m1 stop

$313Delta

Wed, Jan 28 - Wed, Feb 4

12:46 pm - 9:19 pm

PWM

SGF

9h 33m2 stops

12:45 pm - 10:07 pm

SGF

PWM

8h 22m1 stop

$314American Airlines

Wed, Jan 7 - Wed, Jan 14

4:10 pm - 9:58 pm

PWM

SGF

6h 48m1 stop

7:45 am - 2:39 pm

SGF

PWM

5h 54m1 stop

$338United Airlines

Fri, Jan 23 - Sun, Jan 25

2:31 pm - 9:58 pm

PWM

SGF

8h 27m2 stops

7:45 am - 2:39 pm

SGF

PWM

5h 54m1 stop

$343United Airlines

Fri, Jan 23 - Sun, Jan 25

Southwest flights from Portland, Maine to Missouri

Our best Southwest deals on Portland, Maine to Missouri flight tickets

Southwest

Jan 1

PWM5:30 amPortland

7h 05m

1 stop

MCI11:35 amKansas City

Jan 7

MCI7:35 amKansas City

6h 20m

2 stops

PWM2:55 pmPortland

$309

Find similar

Southwest

Feb 8

PWM12:45 pmPortland

9h 10m

2 stops

MCI8:55 pmKansas City

Feb 11

MCI2:55 pmKansas City

6h 20m

2 stops

PWM10:15 pmPortland

$380

Find similar

Southwest

Jan 11

PWM5:35 amPortland

9h 35m

2 stops

STL2:10 pmLambert-St Louis

Jan 12

STL11:35 amLambert-St Louis

9h 40m

2 stops

PWM10:15 pmPortland

$410

Find similar

Delta flights from Portland, Maine to Missouri

Our best Delta deals on Portland, Maine to Missouri flight tickets

Delta

Jan 7

PWM6:00 amPortland

11h 15m

2 stops

SGF4:15 pmSpringfield-Branson

Jan 14

SGF12:01 pmSpringfield-Branson

10h 21m

2 stops

PWM11:22 pmPortland

$299

Find similar

Delta

Jan 1

PWM5:45 amPortland

6h 47m

1 stop

MCI11:32 amKansas City

Jan 7

MCI4:00 pmKansas City

5h 27m

1 stop

PWM10:27 pmPortland

$304

Find similar

Delta

Jan 28

PWM5:30 amPortland

7h 47m

1 stop

MCI12:17 pmKansas City

Feb 4

MCI6:30 amKansas City

4h 33m

1 stop

PWM12:03 pmPortland

$313

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Fri 1/23

11:29 am-11:11 am

2 stops24h 42m

Lambert-St Louis

Sun 1/25

5:42 pm-9:07 am

1 stop14h 25m

$268

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Fri 1/23

11:29 am-11:11 am

2 stops24h 42m

Lambert-St Louis

Sun 1/25

5:42 pm-9:07 am

1 stop14h 25m

$278

PortlandSpringfield

PWM - SGF

PWMSGF

Portland

Wed 1/7

6:00 am-4:15 pm

2 stops11h 15m

Springfield-Branson

Wed 1/14

12:01 pm-11:22 pm

2 stops10h 21m

$299

PortlandKansas City

PWM - MCI

PWMMCI

Portland

Thu 1/1

5:30 am-11:35 am

1 stop7h 05m

Kansas City

Tue 1/6

6:15 am-2:55 pm

1 stop7h 40m

$304

PortlandSpringfield

PWM - SGF

PWMSGF

Portland

Wed 1/7

7:00 am-12:15 pm

1 stop6h 15m

Springfield-Branson

Wed 1/14

12:45 pm-10:07 pm

1 stop8h 22m

$309

PortlandKansas City

PWM - MCI

PWMMCI

Portland

Thu 1/1

5:30 am-11:35 am

1 stop7h 05m

Kansas City

Wed 1/7

7:35 am-2:55 pm

2 stops6h 20m

$309

PortlandKansas City

PWM - MCI

PWMMCI

Portland

Wed 1/28

5:30 am-12:17 pm

1 stop7h 47m

Kansas City

Wed 2/4

6:30 am-12:03 pm

1 stop4h 33m

$313

PortlandSpringfield

PWM - SGF

PWMSGF

Portland

Wed 1/7

12:46 pm-9:19 pm

2 stops9h 33m

Springfield-Branson

Wed 1/14

12:45 pm-10:07 pm

1 stop8h 22m

$314

PortlandSpringfield

PWM - SGF

PWMSGF

Portland

Fri 1/23

4:10 pm-9:58 pm

1 stop6h 48m

Springfield-Branson

Sun 1/25

7:45 am-2:39 pm

1 stop5h 54m

$338

PortlandSpringfield

PWM - SGF

PWMSGF

Portland

Fri 1/23

2:31 pm-9:58 pm

2 stops8h 27m

Springfield-Branson

Sun 1/25

7:45 am-2:39 pm

1 stop5h 54m

$343

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 Portland, Maine 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

Prices

Airlines

What is the cheapest month to fly to Missouri?

In general, February is the cheapest month to fly from Portland, Maine to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $269. If you aren’t able to travel to Missouri during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $333.

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

The cheapest day to depart from Portland, Maine to Missouri is on a Tuesday when prices can be found for as low as $443. Flights from Portland, Maine to Missouri on a Monday will generally be more expensive and average around $638. 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 afternoon. momondo users have found flights departing from Portland, Maine to Missouri in the afternoon for as low as $441. 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 $609. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Portland, Maine to Missouri flights?

You could potentially save up to 41% on your flight if you consider stops on a Portland, Maine to Missouri flight.

Cheap Portland, Maine to Missouri flight deals and tips

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

Fastest flight time	5h 36m
Direct flights	None

The fastest flight from Portland, Maine to Missouri takes 5h 36m

There are no direct flights from Portland, Maine to Missouri. There are no popular flight routes from Portland, Maine to Missouri.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Missouri?
Prices for flights from Portland Airport to Missouri are updated daily.
How many operators does momondo search for flights from Portland Airport to Missouri?
There are 4 operators available for flights from Portland Airport to Missouri as of December 2025.
How old do you have to be to fly from Portland Airport to Missouri?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Missouri.
What documentation or ID do you need to fly to Missouri?
The required travel and health documents for your Missouri 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 Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland, Maine to Missouri

Compare and see reviews for airlines that fly from Portland, Maine to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $173	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Southwest	PriceFrom $237	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $243	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
United Airlines	PriceFrom $389	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland 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 Portland.

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

All flight searches from Portland to Missouri on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Portland to Missouri 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 Portland to Missouri right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Missouri flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.