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Cheap flights from Maine to St. Louis from $133

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Maine to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:01 am - 10:51 amPWM  Portland-STL Lambert-St Louis
5h 50m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 1:03 pmSTL  Lambert-St Louis-PWM Portland
5h 03m1 stop Atlanta Hartsfield-Jackson
$281Delta
Wed, Oct 7 - Sat, Oct 17
Delta Logo
6:01 am - 1:20 pmPWM  Portland-STL Lambert-St Louis
8h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
10:00 am - 4:47 pmSTL  Lambert-St Louis-PWM Portland
5h 47m1 stop New York LaGuardia
$281Delta
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
6:00 am - 11:33 amPWM  Portland-STL Lambert-St Louis
6h 33m1 stop Newark
United Airlines Logo
4:50 pm - 11:28 pmSTL  Lambert-St Louis-PWM Portland
5h 38m1 stop Newark
$281United Airlines
Sat, Oct 17 - Tue, Oct 20
American Airlines Logo
4:27 pm - 9:46 pmPWM  Portland-STL Lambert-St Louis
6h 19m1 stop New York LaGuardia
American Airlines Logo
7:03 am - 3:43 pmSTL  Lambert-St Louis-PWM Portland
7h 40m1 stop Washington, D.C. Reagan-National
$291American Airlines
Wed, Oct 21 - Sat, Oct 24
American Airlines Logo
5:30 am - 10:41 amPWM  Portland-STL Lambert-St Louis
6h 11m1 stop Philadelphia
American Airlines Logo
5:40 pm - 11:36 pmSTL  Lambert-St Louis-PWM Portland
4h 56m1 stop Philadelphia
$321American Airlines
Thu, Oct 8 - Mon, Oct 12
Southwest Logo
5:40 am - 11:35 amPWM  Portland-STL Lambert-St Louis
6h 55m1 stop Baltimore/Washington
Southwest Logo
2:00 pm - 9:55 pmSTL  Lambert-St Louis-PWM Portland
6h 55m1 stop Chicago Midway
$321Southwest
Tue, Oct 27 - Fri, Oct 30
Southwest Logo
6:00 pm - 10:05 pmPWM  Portland-STL Lambert-St Louis
5h 05m1 stop Chicago Midway
Southwest Logo
5:25 am - 12:25 pmSTL  Lambert-St Louis-PWM Portland
6h 00m2 stops Chicago Midway Baltimore/Washington
$326Southwest
Tue, Oct 27 - Fri, Oct 30
Frontier Logo
12:52 pm - 1:10 pmBOS  Boston Logan Intl-STL Lambert-St Louis
25h 18m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:35 pm - 11:52 amSTL  Lambert-St Louis-BOS Boston Logan Intl
16h 17m1 stop Atlanta Hartsfield-Jackson
$337Frontier
Tue, Oct 6 - Mon, Oct 12
United Airlines Logo
8:05 am - 12:13 pmBOS  Boston Logan Intl-STL Lambert-St Louis
5h 08m1 stop Chicago O'Hare Intl
United Airlines Logo
7:30 am - 2:35 pmSTL  Lambert-St Louis-BOS Boston Logan Intl
6h 05m1 stop Newark
$338United Airlines
Tue, Oct 13 - Thu, Oct 15
Frontier Logo
12:39 pm - 11:19 amBOS  Boston Logan Intl-STL Lambert-St Louis
23h 40m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
Frontier Logo
6:44 pm - 11:30 amSTL  Lambert-St Louis-BOS Boston Logan Intl
15h 46m1 stop Atlanta Hartsfield-Jackson
$338Frontier
Wed, Nov 4 - Mon, Nov 9

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American Airlines flights from Maine to St. Louis

Our best American Airlines deals on Maine to St. Louis flight tickets
American Airlines
Oct 21
PWM4:27 pmPortland
6h 19m
1 stop
STL9:46 pmLambert-St Louis
Oct 24
STL7:03 amLambert-St Louis
7h 40m
1 stop
PWM3:43 pmPortland
$291
American Airlines
Oct 8
PWM6:00 amPortland
5h 18m
1 stop
STL10:18 amLambert-St Louis
Oct 10
STL5:40 pmLambert-St Louis
4h 56m
1 stop
PWM11:36 pmPortland
$321
American Airlines
Oct 23
PWM7:26 pmPortland
5h 22m
1 stop
STL11:48 pmLambert-St Louis
Oct 26
STL5:27 pmLambert-St Louis
5h 13m
1 stop
PWM11:40 pmPortland
$340

Southwest flights from Maine to St. Louis

Our best Southwest deals on Maine to St. Louis flight tickets
Southwest
Oct 27
PWM6:00 pmPortland
5h 05m
1 stop
STL10:05 pmLambert-St Louis
Oct 30
STL5:25 amLambert-St Louis
6h 00m
2 stops
PWM12:25 pmPortland
$326
Southwest
Oct 27
PWM5:40 amPortland
10h 20m
2 stops
STL3:00 pmLambert-St Louis
Oct 30
STL5:25 amLambert-St Louis
6h 00m
2 stops
PWM12:25 pmPortland
$337
Southwest
Nov 4
BOS5:20 amBoston Logan Intl
3h 10m
STL7:30 amLambert-St Louis
Nov 9
STL4:40 pmLambert-St Louis
6h 15m
2 stops
BOS11:55 pmBoston Logan Intl
$338

momondo Fare Finder

 
Use the filters below to find and compare flights from Maine to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Wed 10/7

6:01 am-10:51 am

1 stop5h 50m

Lambert-St Louis

Sat 10/17

7:00 am-1:03 pm

1 stop5h 03m

$281

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Sat 10/24

6:01 am-1:20 pm

1 stop8h 19m

Lambert-St Louis

Wed 10/28

10:00 am-4:47 pm

1 stop5h 47m

$281

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Sat 10/17

6:00 am-11:33 am

1 stop6h 33m

Lambert-St Louis

Tue 10/20

4:50 pm-11:28 pm

1 stop5h 38m

$281

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Wed 10/21

4:27 pm-9:46 pm

1 stop6h 19m

Lambert-St Louis

Sat 10/24

7:03 am-3:43 pm

1 stop7h 40m

$291

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Thu 10/8

5:30 am-10:41 am

1 stop6h 11m

Lambert-St Louis

Mon 10/12

5:40 pm-11:36 pm

1 stop4h 56m

$321

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Tue 10/27

5:40 am-11:35 am

1 stop6h 55m

Lambert-St Louis

Fri 10/30

2:00 pm-9:55 pm

1 stop6h 55m

$321

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Tue 10/27

6:00 pm-10:05 pm

1 stop5h 05m

Lambert-St Louis

Fri 10/30

5:25 am-12:25 pm

2 stops6h 00m

$326

BostonSt. Louis

BOS Boston Logan Intl - STL Lambert-St Louis

BOSSTL

Boston Logan Intl

Tue 10/6

12:52 pm-1:10 pm

1 stop25h 18m

Lambert-St Louis

Mon 10/12

6:35 pm-11:52 am

1 stop16h 17m

$337

BostonSt. Louis

BOS Boston Logan Intl - STL Lambert-St Louis

BOSSTL

Boston Logan Intl

Tue 10/13

8:05 am-12:13 pm

1 stop5h 08m

Lambert-St Louis

Thu 10/15

7:30 am-2:35 pm

1 stop6h 05m

$338

BostonSt. Louis

BOS Boston Logan Intl - STL Lambert-St Louis

BOSSTL

Boston Logan Intl

Wed 11/4

12:39 pm-11:19 am

2 stops23h 40m

Lambert-St Louis

Mon 11/9

6:44 pm-11:30 am

1 stop15h 46m

$338

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 St. Louis from

How to get the cheapest flight ticket from Maine to St. Louis

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 St. Louis?

In general, August is the cheapest month to fly from Maine to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $350. The month of March is another great option to travel to St. Louis, with average flight prices from Maine averaging around $372.

Can stopping save me money on Maine to St. Louis flights?

You could potentially save up to 83% on your flight if you consider stops on a Maine to St. Louis flight.

Cheap Maine to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to St. Louis

Best Price Found

$133

Fastest flight time

2h 50m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Maine in the past 72 hours is $133. The best round-trip flight deal from Maine to St. Louis found on momondo in the last 72 hours is $281.
The fastest flight from Maine to St. Louis takes 2h 50m
Direct flights go from Maine to St. Louis every day.
There is 1 airport in St. Louis. From Maine there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Maine to St. Louis

  • When did momondo last update prices for flights from Maine to Lambert-St Louis Airport?

    Prices for flights from Maine to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Maine to Lambert-St Louis Airport?

  • How old do you have to be to fly from Maine to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Maine to St. Louis

Compare and see reviews for airlines that fly from Maine to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $254Free CancellationRating
7.4
10,214 reviews
Search United Airlines flights
DeltaPriceFrom $278Free CancellationRating
7.8
8,580 reviews
Search Delta flights
American AirlinesPriceFrom $284Free CancellationRating
7.1
12,075 reviews
Search American Airlines flights
SouthwestPriceFrom $348Free CancellationRating
8.0
4,190 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
St. Peters
Maryland Heights
Alton
Collinsville
Florissant
Hermann
Clayton
O'Fallon
Farmington
Fenton
Festus
Edwardsville
Wentzville
Eureka
Litchfield
Grafton
Waterloo

Why use momondo?

Why should I use momondo to find a flight deal from Maine to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Maine to St. Louis with flexible booking policies on momondo?

Flights from Maine to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Maine to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Maine.

I’m not ready to book a flight from Maine to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Maine to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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