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Cheap flights from Missouri to Portland from $133

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 5/27. 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.
Multiple Airlines Logo
4:19 pm - 4:16 pm
STL
-
PWM
22h 57m
2 stops
Multiple Airlines Logo
9:52 am - 12:21 am
PWM
-
STL
15h 29m
1 stop
$288Multiple Airlines
Fri, May 8 - Fri, May 15
Delta Logo
4:19 pm - 11:15 pm
STL
-
PWM
5h 56m
1 stop
Delta Logo
6:57 pm - 11:56 pm
PWM
-
STL
5h 59m
1 stop
$299Delta
Wed, Jun 10 - Tue, Jun 23
Southwest Logo
3:15 pm - 10:55 pm
STL
-
PWM
6h 40m
2 stops
Southwest Logo
1:05 pm - 7:15 pm
PWM
-
STL
7h 10m
1 stop
$304Southwest
Wed, Jun 10 - Wed, Jun 17
Delta Logo
6:00 am - 12:38 pm
MCI
-
PWM
5h 38m
1 stop
Delta Logo
5:51 pm - 10:36 pm
PWM
-
MCI
5h 45m
1 stop
$313Delta
Tue, May 19 - Wed, Jun 3
Delta Logo
6:45 am - 11:55 am
STL
-
PWM
4h 10m
1 stop
Delta Logo
2:05 pm - 9:38 pm
PWM
-
STL
8h 33m
1 stop
$315Delta
Sat, May 9 - Wed, May 13
Multiple Airlines Logo
4:19 pm - 9:12 am
STL
-
PWM
15h 53m
1 stop
Multiple Airlines Logo
9:52 am - 12:21 am
PWM
-
STL
15h 29m
1 stop
$316Multiple Airlines
Fri, May 8 - Fri, May 15
Southwest Logo
1:40 pm - 9:30 pm
MCI
-
PWM
6h 50m
2 stops
Southwest Logo
5:30 am - 9:45 am
PWM
-
MCI
5h 15m
1 stop
$318Southwest
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
6:15 am - 1:27 pm
STL
-
PWM
6h 12m
1 stop
United Airlines Logo
5:30 am - 12:47 pm
PWM
-
STL
8h 17m
2 stops
$336United Airlines
Sat, May 2 - Sat, May 9
American Airlines Logo
9:31 am - 6:53 pm
SGF
-
PWM
8h 22m
1 stop
American Airlines Logo
4:03 pm - 8:25 pm
PWM
-
SGF
5h 22m
1 stop
$349American Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
2:13 pm - 10:46 pm
MCI
-
PWM
7h 33m
1 stop
American Airlines Logo
6:00 am - 1:43 pm
PWM
-
MCI
8h 43m
2 stops
$351American Airlines
Wed, May 13 - Sat, May 16

Southwest flights from Missouri to Portland, Maine

Our best Southwest deals on Missouri to Portland, Maine flight tickets
Southwest
Jun 10
STL3:15 pmLambert-St Louis
6h 40m
2 stops
PWM10:55 pmPortland
Jun 17
PWM1:05 pmPortland
7h 10m
1 stop
STL7:15 pmLambert-St Louis
$304
Southwest
Jun 16
MCI1:40 pmKansas City
6h 50m
2 stops
PWM9:30 pmPortland
Jun 23
PWM5:30 amPortland
5h 15m
1 stop
MCI9:45 amKansas City
$318
Southwest
Jun 1
STL4:00 pmLambert-St Louis
6h 25m
1 stop
PWM11:25 pmPortland
Jun 6
PWM8:25 amPortland
10h 30m
2 stops
STL5:55 pmLambert-St Louis
$342

American Airlines flights from Missouri to Portland, Maine

Our best American Airlines deals on Missouri to Portland, Maine flight tickets
American Airlines
Sep 2
STL5:41 pmLambert-St Louis
5h 10m
1 stop
PWM11:51 pmPortland
Sep 9
PWM9:01 amPortland
6h 58m
1 stop
STL2:59 pmLambert-St Louis
$349
American Airlines
May 13
MCI2:13 pmKansas City
7h 33m
1 stop
PWM10:46 pmPortland
May 16
PWM6:00 amPortland
8h 43m
2 stops
MCI1:43 pmKansas City
$351
American Airlines
Sep 5
SGF11:27 amSpringfield-Branson
9h 51m
2 stops
PWM10:18 pmPortland
Sep 12
PWM4:03 pmPortland
5h 22m
1 stop
SGF8:25 pmSpringfield-Branson
$354

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 April 14, 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

Fri 5/8

4:19 pm-4:16 pm

2 stops22h 57m

Portland

Fri 5/15

9:52 am-12:21 am

1 stop15h 29m

$288

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 6/10

4:19 pm-11:15 pm

1 stop5h 56m

Portland

Tue 6/23

6:57 pm-11:56 pm

1 stop5h 59m

$299

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 6/10

3:15 pm-10:55 pm

2 stops6h 40m

Portland

Wed 6/17

1:05 pm-7:15 pm

1 stop7h 10m

$304
Quickest round-trip

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Tue 5/19

6:00 am-12:38 pm

1 stop5h 38m

Portland

Wed 6/3

5:51 pm-10:36 pm

1 stop5h 45m

$313

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 5/9

6:45 am-11:55 am

1 stop4h 10m

Portland

Wed 5/13

2:05 pm-9:38 pm

1 stop8h 33m

$315

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Fri 5/8

4:19 pm-9:12 am

1 stop15h 53m

Portland

Fri 5/15

9:52 am-12:21 am

1 stop15h 29m

$316

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Tue 6/16

1:40 pm-9:30 pm

2 stops6h 50m

Portland

Tue 6/23

5:30 am-9:45 am

1 stop5h 15m

$318

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 5/2

6:15 am-1:27 pm

1 stop6h 12m

Portland

Sat 5/9

5:30 am-12:47 pm

2 stops8h 17m

$336

SpringfieldPortland

SGF - PWM

SGFPWM

Springfield-Branson

Sat 9/5

9:31 am-6:53 pm

1 stop8h 22m

Portland

Sat 9/12

4:03 pm-8:25 pm

1 stop5h 22m

$349

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Wed 5/13

2:13 pm-10:46 pm

1 stop7h 33m

Portland

Sat 5/16

6:00 am-1:43 pm

2 stops8h 43m

$351

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 March. Flight prices, which tend to average around $349, 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 March, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $386.

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 $440 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 $329 on momondo.

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

You could potentially save up to 37% 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 10m

Direct flights

None
The fastest flight from Missouri to Portland, Maine takes 4h 10m
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
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $212Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.1
11,573 reviews
Search American Airlines flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,328 reviews
Search Southwest 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
Conway
Freeport
Lewiston
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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