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Cheap flights from Maine to St. Louis from $170

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.
American Airlines Logo
5:06 am - 10:08 amPWM  Portland-STL Lambert-St Louis
6h 02m1 stop Washington, D.C. Reagan-National
American Airlines Logo
3:41 pm - 11:31 pmSTL  Lambert-St Louis-PWM Portland
6h 50m1 stop Washington, D.C. Reagan-National
$339American Airlines
Tue, Dec 15 - Tue, Dec 15
Southwest Logo
5:10 pm - 12:10 amPWM  Portland-STL Lambert-St Louis
8h 00m1 stop Baltimore/Washington
Southwest Logo
6:25 am - 2:50 pmSTL  Lambert-St Louis-PWM Portland
7h 25m1 stop Baltimore/Washington
$339Southwest
Mon, Jan 4 - Mon, Jan 11
Delta Logo
6:00 am - 1:23 pmPWM  Portland-STL Lambert-St Louis
8h 23m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:31 pm - 11:31 pmSTL  Lambert-St Louis-PWM Portland
8h 00m1 stop Atlanta Hartsfield-Jackson
$339Delta
Tue, Nov 24 - Wed, Nov 25
Delta Logo
6:12 am - 11:51 amPWM  Portland-STL Lambert-St Louis
6h 39m1 stop New York LaGuardia
Delta Logo
6:32 am - 11:57 amSTL  Lambert-St Louis-PWM Portland
4h 25m1 stop Detroit Metropolitan Wayne County
$339Delta
Tue, Dec 8 - Tue, Dec 15
United Airlines Logo
3:41 pm - 9:52 pmPWM  Portland-STL Lambert-St Louis
7h 11m1 stop Newark
United Airlines Logo
7:30 am - 2:16 pmSTL  Lambert-St Louis-PWM Portland
5h 46m1 stop Chicago O'Hare Intl
$339United Airlines
Mon, Nov 23 - Fri, Nov 27
United Airlines Logo
4:25 pm - 11:20 pmPWM  Portland-STL Lambert-St Louis
7h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
4:57 pm - 11:32 pmSTL  Lambert-St Louis-PWM Portland
5h 35m1 stop Newark
$339United Airlines
Thu, Jan 14 - Mon, Jan 18
Southwest Logo
5:10 pm - 12:10 amPWM  Portland-STL Lambert-St Louis
8h 00m1 stop Baltimore/Washington
Southwest Logo
6:05 am - 2:50 pmSTL  Lambert-St Louis-PWM Portland
7h 45m2 stops Chicago Midway Baltimore/Washington
$344Southwest
Mon, Jan 4 - Mon, Jan 11
American Airlines Logo
6:23 am - 12:38 pmBGR  Bangor-STL Lambert-St Louis
7h 15m1 stop Washington, D.C. Reagan-National
American Airlines Logo
6:48 am - 3:54 pmSTL  Lambert-St Louis-BGR Bangor
8h 06m1 stop Washington, D.C. Reagan-National
$349American Airlines
Thu, Nov 26 - Thu, Dec 3
Multiple Airlines Logo
9:48 am - 10:53 amPWM  Portland-STL Lambert-St Louis
26h 05m2 stops Orlando Atlanta Hartsfield-Jackson
Multiple Airlines Logo
5:58 pm - 9:08 amSTL  Lambert-St Louis-PWM Portland
14h 10m1 stop Orlando
$441Multiple Airlines
Fri, Dec 18 - Sun, Dec 20
Multiple Airlines Logo
11:40 am - 12:04 amBGR  Bangor-STL Lambert-St Louis
13h 24m1 stop Orlando Sanford Intl
Multiple Airlines Logo
5:59 pm - 10:58 amSTL  Lambert-St Louis-BGR Bangor
15h 59m1 stop Orlando
$570Multiple Airlines
Mon, Feb 8 - Thu, Feb 11

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Delta flights from Maine to St. Louis

Our best Delta deals on Maine to St. Louis flight tickets
Delta
Nov 23
PWM4:50 pmPortland
4h 39m
1 stop
STL8:29 pmLambert-St Louis
Nov 25
STL2:31 pmLambert-St Louis
8h 00m
1 stop
PWM11:31 pmPortland
$339
Delta
Jan 4
BGR5:07 amBangor
8h 37m
1 stop
STL12:44 pmLambert-St Louis
Jan 11
STL12:01 pmLambert-St Louis
10h 25m
2 stops
BGR11:26 pmBangor
$354
Delta
Nov 24
PWM6:00 amPortland
6h 15m
1 stop
STL11:15 amLambert-St Louis
Nov 26
STL6:00 amLambert-St Louis
6h 06m
1 stop
PWM1:06 pmPortland
$379

United Airlines flights from Maine to St. Louis

Our best United Airlines deals on Maine to St. Louis flight tickets
United Airlines
Nov 23
PWM5:35 amPortland
7h 35m
2 stops
STL12:10 pmLambert-St Louis
Nov 27
STL7:30 amLambert-St Louis
5h 46m
1 stop
PWM2:16 pmPortland
$344
United Airlines
Nov 19
PWM5:50 amPortland
5h 58m
1 stop
STL10:48 amLambert-St Louis
Nov 22
STL1:08 pmLambert-St Louis
7h 43m
1 stop
PWM9:51 pmPortland
$359
United Airlines
Nov 19
PWM5:08 pmPortland
5h 32m
1 stop
STL9:40 pmLambert-St Louis
Nov 22
STL1:08 pmLambert-St Louis
7h 43m
1 stop
PWM9:51 pmPortland
$364

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

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Tue 12/15

5:06 am-10:08 am

1 stop6h 02m

Lambert-St Louis

Tue 12/15

3:41 pm-11:31 pm

1 stop6h 50m

$339

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Mon 1/4

5:10 pm-12:10 am

1 stop8h 00m

Lambert-St Louis

Mon 1/11

6:25 am-2:50 pm

1 stop7h 25m

$339

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Tue 11/24

6:00 am-1:23 pm

1 stop8h 23m

Lambert-St Louis

Wed 11/25

2:31 pm-11:31 pm

1 stop8h 00m

$339
Quickest round-trip

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Tue 12/8

6:12 am-11:51 am

1 stop6h 39m

Lambert-St Louis

Tue 12/15

6:32 am-11:57 am

1 stop4h 25m

$339

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Mon 11/23

3:41 pm-9:52 pm

1 stop7h 11m

Lambert-St Louis

Fri 11/27

7:30 am-2:16 pm

1 stop5h 46m

$339

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Thu 1/14

4:25 pm-11:20 pm

1 stop7h 55m

Lambert-St Louis

Mon 1/18

4:57 pm-11:32 pm

1 stop5h 35m

$339

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Mon 1/4

5:10 pm-12:10 am

1 stop8h 00m

Lambert-St Louis

Mon 1/11

6:05 am-2:50 pm

2 stops7h 45m

$344

BangorSt. Louis

BGR Bangor - STL Lambert-St Louis

BGRSTL

Bangor

Thu 11/26

6:23 am-12:38 pm

1 stop7h 15m

Lambert-St Louis

Thu 12/3

6:48 am-3:54 pm

1 stop8h 06m

$349

PortlandSt. Louis

PWM Portland - STL Lambert-St Louis

PWMSTL

Portland

Fri 12/18

9:48 am-10:53 am

2 stops26h 05m

Lambert-St Louis

Sun 12/20

5:58 pm-9:08 am

1 stop14h 10m

$441

BangorSt. Louis

BGR Bangor - STL Lambert-St Louis

BGRSTL

Bangor

Mon 2/8

11:40 am-12:04 am

1 stop13h 24m

Lambert-St Louis

Thu 2/11

5:59 pm-10:58 am

1 stop15h 59m

$570

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 $370.

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

You could potentially save up to 85% 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

$170

Fastest flight time

3h 00m

Direct flights

None
The best one-way flight to St. Louis from Maine in the past 72 hours is $170. The best round-trip flight deal from Maine to St. Louis found on momondo in the last 72 hours is $339.
The fastest flight from Maine to St. Louis takes 3h 00m
There are no direct flights from Maine to St. Louis. There are no popular flight routes from Maine to St. Louis.
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
7.3
10,460 reviews
Search United Airlines flights
DeltaPriceFrom $278Free CancellationRating
7.8
8,696 reviews
Search Delta flights
American AirlinesPriceFrom $288Free CancellationRating
7.0
12,230 reviews
Search American Airlines flights
SouthwestPriceFrom $293Free CancellationRating
8.0
4,215 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
Maryland Heights
St. Peters
Alton
Collinsville
Farmington
Florissant
Festus
Hermann
Clayton
Fenton
Edwardsville
O'Fallon
Eureka
Wentzville
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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