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Cheap flights from Missouri to Portland from $119

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 Portland departing on 9/23. 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 Missouri to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:39 pm - 11:13 pm
STL
-
PWM
6h 34m
1 stop
Delta Logo
6:30 am - 11:47 am
PWM
-
STL
6h 17m
1 stop
$237Delta
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
7:35 am - 2:21 pm
MCI
-
PWM
5h 46m
1 stop
American Airlines Logo
6:09 pm - 12:35 am
PWM
-
MCI
7h 26m
1 stop
$257American Airlines
Wed, Aug 12 - Wed, Aug 19
Delta Logo
3:42 pm - 10:33 pm
STL
-
PWM
5h 51m
1 stop
Delta Logo
6:05 am - 10:55 am
PWM
-
STL
5h 50m
1 stop
$265Delta
Sat, Sep 12 - Wed, Sep 16
American Airlines Logo
4:32 pm - 11:37 pm
MCI
-
PWM
6h 05m
1 stop
American Airlines Logo
7:28 am - 1:32 pm
PWM
-
MCI
7h 04m
1 stop
$275American Airlines
Sat, Aug 15 - Tue, Aug 18
United Airlines Logo
3:14 pm - 9:23 pm
MCI
-
PWM
5h 09m
1 stop
United Airlines Logo
5:15 am - 2:18 pm
PWM
-
MCI
10h 03m
2 stops
$280United Airlines
Sat, Sep 12 - Tue, Sep 15
Southwest Logo
3:45 pm - 10:05 pm
STL
-
PWM
5h 20m
1 stop
Southwest Logo
5:45 am - 12:10 pm
PWM
-
STL
7h 25m
2 stops
$287Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
3:10 pm - 9:10 pm
MCI
-
PWM
5h 00m
1 stop
Southwest Logo
6:15 pm - 10:35 pm
PWM
-
MCI
5h 20m
1 stop
$288Southwest
Tue, Aug 18 - Tue, Aug 25
Delta Logo
1:15 pm - 9:33 pm
MCI
-
PWM
7h 18m
1 stop
Delta Logo
6:05 am - 12:30 pm
PWM
-
MCI
7h 25m
1 stop
$293Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
4:59 pm - 11:25 pm
STL
-
PWM
5h 26m
1 stop
Delta Logo
6:05 am - 10:55 am
PWM
-
STL
5h 50m
1 stop
$293Delta
Thu, Sep 17 - Mon, Sep 21
United Airlines Logo
5:39 pm - 11:59 pm
MCI
-
PWM
5h 20m
1 stop
United Airlines Logo
5:15 am - 12:20 pm
PWM
-
MCI
8h 05m
2 stops
$297United Airlines
Tue, Sep 1 - Tue, Sep 22

Delta flights from Missouri to Portland, Maine

Our best Delta deals on Missouri to Portland, Maine flight tickets
Delta
Aug 12
STL3:39 pmLambert-St Louis
6h 34m
1 stop
PWM11:13 pmPortland
Aug 19
PWM6:30 amPortland
6h 17m
1 stop
STL11:47 amLambert-St Louis
$237
Delta
Sep 12
STL3:42 pmLambert-St Louis
5h 51m
1 stop
PWM10:33 pmPortland
Sep 16
PWM6:05 amPortland
5h 50m
1 stop
STL10:55 amLambert-St Louis
$265
Delta
Aug 22
MCI1:15 pmKansas City
7h 18m
1 stop
PWM9:33 pmPortland
Aug 29
PWM6:05 amPortland
7h 25m
1 stop
MCI12:30 pmKansas City
$293

Southwest flights from Missouri to Portland, Maine

Our best Southwest deals on Missouri to Portland, Maine flight tickets
Southwest
Aug 12
STL3:45 pmLambert-St Louis
5h 20m
1 stop
PWM10:05 pmPortland
Aug 19
PWM5:45 amPortland
7h 25m
2 stops
STL12:10 pmLambert-St Louis
$287
Southwest
Aug 18
MCI3:10 pmKansas City
5h 00m
1 stop
PWM9:10 pmPortland
Aug 25
PWM6:15 pmPortland
5h 20m
1 stop
MCI10:35 pmKansas City
$288
Southwest
Aug 18
MCI3:35 pmKansas City
5h 30m
1 stop
PWM10:05 pmPortland
Aug 25
PWM7:45 amPortland
9h 10m
2 stops
MCI3:55 pmKansas City
$294

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Portland, Maine 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 June 2, 2026.
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

Cheapest round-trip

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 8/12

3:39 pm-11:13 pm

1 stop6h 34m

Portland

Wed 8/19

6:30 am-11:47 am

1 stop6h 17m

$237

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Wed 8/12

7:35 am-2:21 pm

1 stop5h 46m

Portland

Wed 8/19

6:09 pm-12:35 am

1 stop7h 26m

$257

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 9/12

3:42 pm-10:33 pm

1 stop5h 51m

Portland

Wed 9/16

6:05 am-10:55 am

1 stop5h 50m

$265

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Sat 8/15

4:32 pm-11:37 pm

1 stop6h 05m

Portland

Tue 8/18

7:28 am-1:32 pm

1 stop7h 04m

$275

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Sat 9/12

3:14 pm-9:23 pm

1 stop5h 09m

Portland

Tue 9/15

5:15 am-2:18 pm

2 stops10h 03m

$280

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 8/12

3:45 pm-10:05 pm

1 stop5h 20m

Portland

Wed 8/19

5:45 am-12:10 pm

2 stops7h 25m

$287
Quickest round-trip

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Tue 8/18

3:10 pm-9:10 pm

1 stop5h 00m

Portland

Tue 8/25

6:15 pm-10:35 pm

1 stop5h 20m

$288

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Sat 8/22

1:15 pm-9:33 pm

1 stop7h 18m

Portland

Sat 8/29

6:05 am-12:30 pm

1 stop7h 25m

$293

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Thu 9/17

4:59 pm-11:25 pm

1 stop5h 26m

Portland

Mon 9/21

6:05 am-10:55 am

1 stop5h 50m

$293

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Tue 9/1

5:39 pm-11:59 pm

1 stop5h 20m

Portland

Tue 9/22

5:15 am-12:20 pm

2 stops8h 05m

$297

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 Portland from

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

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Missouri is in July. Flight prices, which tend to average around $128, 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 July, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $151.

How far in advance should I book a flight from Missouri 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 $437 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 $333 on momondo.

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

You could potentially save up to 24% on your flight if you consider stops on a Missouri to Portland, Maine flight.

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

Fastest flight time

4h 08m

Direct flights

None
The fastest flight from Missouri to Portland, Maine takes 4h 08m
There are no direct flights from Missouri to Portland, Maine. There are no popular flight routes from Missouri to Portland, Maine.
Search flight deals

Frequently asked questions about flying from Missouri to Portland, Maine

  • 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?

  • 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
DeltaPriceFrom $128Free CancellationRating
7.9
8,398 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
9,778 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Lewiston
Conway
Freeport
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Bath
Oxford
Georgetown
Falmouth
Tamworth

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.

An easier way to manage your Portland, Maine 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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