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Cheap flights from Missouri to Portland from $135

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 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

American Airlines Logo
6:00 am - 12:29 pmSTL-PWM
5h 29m1 stop
American Airlines Logo
6:00 am - 12:23 pmPWM-STL
7h 23m1 stop
$257American Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Delta Logo
5:11 pm - 12:03 amSTL-PWM
5h 52m1 stop
Delta Logo
6:00 am - 2:35 pmPWM-STL
9h 35m2 stops
$262Delta
Find Deal
Wed, Sep 10 - Wed, Sep 17
Logo
5:15 am - 9:06 amMCI-PWM
26h 51m1 stop
Logo
3:21 pm - 11:07 pmPWM-MCI
8h 46m1 stop
$267
Find Deal
Thu, Sep 4 - Sat, Sep 6
Delta Logo
10:45 am - 12:03 amSTL-PWM
12h 18m2 stops
Delta Logo
6:00 am - 4:05 pmPWM-STL
11h 05m2 stops
$267Delta
Find Deal
Wed, Sep 10 - Wed, Sep 17
American Airlines Logo
4:35 pm - 10:48 pmMCI-PWM
5h 13m1 stop
American Airlines Logo
3:38 pm - 11:13 pmPWM-MCI
8h 35m1 stop
$269American Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Logo
6:00 am - 2:26 pmMCI-PWM
7h 26m1 stop
Logo
3:21 pm - 11:07 pmPWM-MCI
8h 46m1 stop
$272
Find Deal
Wed, Sep 3 - Sat, Sep 6
United Airlines Logo
3:23 pm - 9:44 pmSTL-PWM
5h 21m1 stop
United Airlines Logo
6:00 am - 2:27 pmPWM-STL
9h 27m2 stops
$298United Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 18
Southwest Logo
2:15 pm - 10:25 pmSTL-PWM
7h 10m1 stop
Southwest Logo
5:50 am - 1:10 pmPWM-STL
8h 20m2 stops
$311Southwest
Find Deal
Wed, Sep 24 - Tue, Sep 30
United Airlines Logo
7:30 am - 2:26 pmMCI-PWM
5h 56m1 stop
United Airlines Logo
6:00 am - 2:20 pmPWM-MCI
9h 20m2 stops
$314United Airlines
Find Deal
Mon, Sep 1 - Thu, Sep 4
Southwest Logo
12:45 pm - 10:00 pmMCI-PWM
8h 15m2 stops
Southwest Logo
5:50 am - 11:30 amPWM-MCI
6h 40m2 stops
$319Southwest
Find Deal
Sat, Sep 13 - Wed, Sep 24

American Airlines flights from Missouri to Portland, Maine

Our best American Airlines deals on Missouri to Portland, Maine flight tickets
American Airlines
Sep 10
STL6:00 amLambert-St Louis
5h 29m
1 stop
PWM12:29 pmPortland
Sep 17
PWM6:00 amPortland
7h 23m
1 stop
STL12:23 pmLambert-St Louis
$257
Find similar
American Airlines
Oct 15
MCI4:35 pmKansas City
5h 13m
1 stop
PWM10:48 pmPortland
Oct 22
PWM3:38 pmPortland
8h 35m
1 stop
MCI11:13 pmKansas City
$269
Find similar
American Airlines
Sep 10
MCI10:46 amKansas City
8h 25m
2 stops
PWM8:11 pmPortland
Sep 17
PWM6:00 amPortland
7h 26m
1 stop
MCI12:26 pmKansas City
$274
Find similar

Delta flights from Missouri to Portland, Maine

Our best Delta deals on Missouri to Portland, Maine flight tickets
Delta
Sep 10
STL5:11 pmLambert-St Louis
5h 52m
1 stop
PWM12:03 amPortland
Sep 17
PWM6:00 amPortland
9h 35m
2 stops
STL2:35 pmLambert-St Louis
$262
Find similar
Delta
Sep 10
STL10:45 amLambert-St Louis
12h 18m
2 stops
PWM12:03 amPortland
Sep 17
PWM6:00 amPortland
11h 05m
2 stops
STL4:05 pmLambert-St Louis
$267
Find similar
Delta
Sep 3
STL3:36 pmLambert-St Louis
7h 27m
1 stop
PWM12:03 amPortland
Sep 6
PWM6:31 amPortland
10h 35m
2 stops
STL4:06 pmLambert-St Louis
$281
Find similar

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 August 12, 2025.
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

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 9/10

6:00 am-12:29 pm

1 stop5h 29m

Portland

Wed 9/17

6:00 am-12:23 pm

1 stop7h 23m

$257

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 9/10

5:11 pm-12:03 am

1 stop5h 52m

Portland

Wed 9/17

6:00 am-2:35 pm

2 stops9h 35m

$262

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Thu 9/4

5:15 am-9:06 am

1 stop26h 51m

Portland

Sat 9/6

3:21 pm-11:07 pm

1 stop8h 46m

$267

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 9/10

10:45 am-12:03 am

2 stops12h 18m

Portland

Wed 9/17

6:00 am-4:05 pm

2 stops11h 05m

$267

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Wed 10/15

4:35 pm-10:48 pm

1 stop5h 13m

Portland

Wed 10/22

3:38 pm-11:13 pm

1 stop8h 35m

$269

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Wed 9/3

6:00 am-2:26 pm

1 stop7h 26m

Portland

Sat 9/6

3:21 pm-11:07 pm

1 stop8h 46m

$272

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 10/14

3:23 pm-9:44 pm

1 stop5h 21m

Portland

Sat 10/18

6:00 am-2:27 pm

2 stops9h 27m

$298

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Wed 9/24

2:15 pm-10:25 pm

1 stop7h 10m

Portland

Tue 9/30

5:50 am-1:10 pm

2 stops8h 20m

$311

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Mon 9/1

7:30 am-2:26 pm

1 stop5h 56m

Portland

Thu 9/4

6:00 am-2:20 pm

2 stops9h 20m

$314

Kansas CityPortland

MCI - PWM

MCIPWM

Kansas City

Sat 9/13

12:45 pm-10:00 pm

2 stops8h 15m

Portland

Wed 9/24

5:50 am-11:30 am

2 stops6h 40m

$319

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 November. Flight prices, which tend to average around $359, 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 $423 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 $375 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

Best Price Found

$135

Fastest flight time

4h 21m

Direct flights

None

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from Missouri in the past 72 hours is $135. The best round-trip flight deal from Missouri to Portland, Maine found on momondo in the last 72 hours is $257.
The fastest flight from Missouri to Portland, Maine takes 4h 21m
There are no direct flights from Missouri to Portland, Maine. Popular non-direct routes for this connection are Springfield-Branson Airport - Portland Airport, Kansas City Airport - Portland Airport and Lambert-St Louis Airport - Portland Airport.
There is 1 airport near Portland, Maine: Portland (PWM)
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  • 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 $162Free CancellationRating
8.0
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $274Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,246 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
Bartlett
Gorham
Brunswick
Auburn
Intervale
Windham
Bath
Falmouth
Georgetown
Oxford
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.

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