How long does it take to fly to Portland, Maine?

The flight from Missouri to Portland, Maine depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from St. Louis (a popular airport in Missouri) to Boston (the most popular airport in Portland, Maine), then the flight time is 2h 25m on average. If you fly from Kansas City (another popular airport in Missouri) to Boston, then the average flight time is 3h.

How many flights depart from Missouri to Portland, Maine on average per week?

As of September 2025, there are 4 flights per week flying from Missouri to Portland, Maine. The most common day of the week flights depart is Tue, with 50% of flights taking off on this day.

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

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

What airlines fly to Portland, Maine?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Portland, Maine from Missouri according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

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

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

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

As of September 2025, there are 4 operators available to choose from for flights from Missouri to Portland Airport.

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

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 Missouri to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents required for your trip to Portland Airport 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 Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$150 Cheap Flights from Missouri to Portland in 2025/26

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Find the cheapest flights from Missouri to Boston

Round-trip

One-way

Last minute

Cheap round-trip flights

3:35 pm - 10:19 pmSGF-PWM

5h 44m1 stop

6:00 am - 11:04 amPWM-SGF

6h 04m1 stop

$269Delta

Find Deal

Wed, Oct 22 - Tue, Oct 28

6:00 am - 12:22 pmSGF-PWM

5h 22m1 stop

6:00 am - 10:53 amPWM-SGF

5h 53m1 stop

$294Delta

Find Deal

Thu, Nov 6 - Sun, Nov 9

6:42 pm - 10:36 amSTL-PWM

14h 54m1 stop

11:16 am - 1:17 pmPWM-STL

27h 01m1 stop

$320Multiple Airlines

Find Deal

Fri, Oct 24 - Wed, Oct 29

6:08 pm - 11:51 pmSTL-PWM

4h 43m1 stop

12:11 pm - 8:26 pmPWM-STL

9h 15m1 stop

$321American Airlines

Find Deal

Wed, Oct 22 - Wed, Oct 29

11:25 am - 11:20 pmSGF-PWM

10h 55m2 stops

8:00 am - 5:45 pmPWM-SGF

10h 45m2 stops

$321United Airlines

Find Deal

Sat, Oct 18 - Tue, Oct 21

11:06 am - 5:09 pmSGF-PWM

5h 03m1 stop

3:38 pm - 8:51 pmPWM-SGF

6h 13m1 stop

$324American Airlines

Find Deal

Sat, Oct 18 - Tue, Oct 21

6:42 pm - 10:36 amSTL-PWM

14h 54m1 stop

11:16 am - 5:27 pmPWM-STL

31h 11m2 stops

$328Multiple Airlines

Find Deal

Fri, Oct 24 - Wed, Oct 29

9:20 am - 3:10 pmSTL-PWM

4h 50m1 stop

4:00 pm - 9:50 pmPWM-STL

6h 50m1 stop

$331Southwest

Find Deal

Tue, Oct 21 - Tue, Oct 28

3:23 pm - 9:44 pmSTL-PWM

5h 21m1 stop

6:14 am - 10:49 amPWM-STL

5h 35m1 stop

$337United Airlines

Find Deal

Sat, Oct 18 - Sat, Oct 25

6:50 am - 2:55 pmSTL-PWM

7h 05m1 stop

5:35 am - 2:10 pmPWM-STL

9h 35m2 stops

$363Southwest

Find Deal

Wed, Feb 18 - Mon, Feb 23

Delta flights from Missouri to Portland, Maine

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

Delta

Oct 22

SGF3:35 pmSpringfield-Branson

5h 44m

1 stop

PWM10:19 pmPortland

Oct 28

PWM6:00 amPortland

6h 04m

1 stop

SGF11:04 amSpringfield-Branson

$269

Find similar

Delta

Nov 6

SGF6:00 amSpringfield-Branson

5h 22m

1 stop

PWM12:22 pmPortland

Nov 9

PWM6:00 amPortland

5h 53m

1 stop

SGF10:53 amSpringfield-Branson

$294

Find similar

Delta

Oct 22

SGF3:35 pmSpringfield-Branson

5h 44m

1 stop

PWM10:19 pmPortland

Oct 28

PWM5:42 amPortland

10h 08m

2 stops

SGF2:50 pmSpringfield-Branson

$299

Find similar

United Airlines flights from Missouri to Portland, Maine

Our best United Airlines deals on Missouri to Portland, Maine flight tickets

United Airlines

Oct 18

SGF11:25 amSpringfield-Branson

10h 55m

2 stops

PWM11:20 pmPortland

Oct 21

PWM8:00 amPortland

10h 45m

2 stops

SGF5:45 pmSpringfield-Branson

$321

Find similar

United Airlines

Oct 18

STL3:23 pmLambert-St Louis

5h 21m

1 stop

PWM9:44 pmPortland

Oct 25

PWM6:14 amPortland

5h 35m

1 stop

STL10:49 amLambert-St Louis

$337

Find similar

United Airlines

Oct 18

STL3:23 pmLambert-St Louis

7h 36m

2 stops

PWM11:59 pmPortland

Oct 25

PWM6:14 amPortland

7h 14m

1 stop

STL12:28 pmLambert-St Louis

$342

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SpringfieldPortland

SGF - PWM

SGFPWM

Springfield-Branson

Wed 10/22

3:35 pm-10:19 pm

1 stop5h 44m

Portland

Tue 10/28

6:00 am-11:04 am

1 stop6h 04m

$269

SpringfieldPortland

SGF - PWM

SGFPWM

Springfield-Branson

Thu 11/6

6:00 am-12:22 pm

1 stop5h 22m

Portland

Sun 11/9

6:00 am-10:53 am

1 stop5h 53m

$294

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Fri 10/24

6:42 pm-10:36 am

1 stop14h 54m

Portland

Wed 10/29

11:16 am-1:17 pm

1 stop27h 01m

$320

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 10/22

6:08 pm-11:51 pm

1 stop4h 43m

Portland

Wed 10/29

12:11 pm-8:26 pm

1 stop9h 15m

$321

SpringfieldPortland

SGF - PWM

SGFPWM

Springfield-Branson

Sat 10/18

11:25 am-11:20 pm

2 stops10h 55m

Portland

Tue 10/21

8:00 am-5:45 pm

2 stops10h 45m

$321

SpringfieldPortland

SGF - PWM

SGFPWM

Springfield-Branson

Sat 10/18

11:06 am-5:09 pm

1 stop5h 03m

Portland

Tue 10/21

3:38 pm-8:51 pm

1 stop6h 13m

$324

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Fri 10/24

6:42 pm-10:36 am

1 stop14h 54m

Portland

Wed 10/29

11:16 am-5:27 pm

2 stops31h 11m

$328

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 10/21

9:20 am-3:10 pm

1 stop4h 50m

Portland

Tue 10/28

4:00 pm-9:50 pm

1 stop6h 50m

$331

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 10/18

3:23 pm-9:44 pm

1 stop5h 21m

Portland

Sat 10/25

6:14 am-10:49 am

1 stop5h 35m

$337

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 2/18

6:50 am-2:55 pm

1 stop7h 05m

Portland

Mon 2/23

5:35 am-2:10 pm

2 stops9h 35m

$363

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 Missouri to Portland, Maine

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 Portland, Maine?

The cheapest month to fly to Portland, Maine from Missouri is in November. Flight prices, which tend to average around $351, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $366.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Missouri is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $375. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Missouri because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $456.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Missouri to Portland, Maine when you can find flight prices for as low as $285. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $436. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $420 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Missouri for as low as $343 on momondo.

Cheap Missouri to Portland, Maine flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Missouri to Portland Airport?
Prices for flights from Missouri to Portland Airport are updated daily.
How many operators does momondo search for flights from Missouri to Portland Airport?
As of September 2025, there are 4 operators available to choose from for flights from Missouri to Portland Airport.
How old do you have to be to fly from Missouri to Portland Airport?
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 Missouri to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents required for your trip to Portland Airport 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 Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Missouri to Portland, Maine

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $128	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
United Airlines	PriceFrom $212	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
American Airlines	PriceFrom $274	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $308	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

North Conway

Boothbay Harbor

Jackson

Conway

Freeport

Lewiston

Bartlett

Brunswick

Gorham

Auburn

Intervale

Windham

Bath

Oxford

Georgetown

Tamworth

Falmouth

Why use momondo?

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

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 Portland from Missouri.

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

Yes. All flights to Portland 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 Portland?

Once you have performed a search for Missouri to Portland 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 Missouri to Portland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Missouri and alert you when they change.