How many flights depart from St. Louis to Maine on average per week?

As of February 2026, 25 flights take off from St. Louis and land in Maine each week. The most common flight departure day for this route is Thu, with 24% of weekly flights taking off on this day.

What is the cheapest airline that flies from Lambert-St Louis to Maine?

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Maine

What airlines fly to Maine?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Maine from St. Louis according to our data. American Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Maine. Keep in mind that there are 4 different airlines that fly to Maine on a routine basis, so you have a few additional options to choose from.

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

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

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

There are 6 operators available for flights from Lambert-St Louis Airport to Maine as of February 2026.

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

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 Lambert-St Louis Airport to Maine.

What documentation or ID do you need to fly to Maine?

The travel and health documents you'll need for your trip to Maine 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 Maine. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$84 Cheap Flights from St. Louis to Maine in 2026

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Find the cheapest flights from St. Louis to Maine

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:22 pm - 11:44 pm

STL

BOS

26h 22m

2 stops

12:43 pm - 10:27 pm

BOS

STL

10h 44m

1 stop

$157Multiple Airlines

Pzt, Mar 2 - Çar, Mar 4

8:22 pm - 1:13 am

STL

BOS

27h 51m

1 stop

12:43 pm - 10:27 pm

BOS

STL

10h 44m

1 stop

$164Multiple Airlines

Pzt, Mar 2 - Çar, Mar 4

4:30 pm - 10:40 pm

STL

BGR

5h 10m

1 stop

6:40 am - 2:01 pm

BGR

STL

8h 21m

1 stop

$279American Airlines

Sal, Nis 28 - Sal, May 5

5:15 pm - 11:20 pm

STL

BGR

5h 05m

1 stop

12:28 pm - 11:58 pm

BGR

STL

12h 30m

2 stops

$299Delta

Çar, Nis 1 - Sal, Nis 7

1:39 pm - 11:20 pm

STL

BGR

8h 41m

2 stops

12:28 pm - 11:58 pm

BGR

STL

12h 30m

2 stops

$304Delta

Çar, Nis 1 - Sal, Nis 7

8:00 am - 5:07 pm

STL

PWM

8h 07m

1 stop

6:00 pm - 11:44 pm

PWM

STL

6h 44m

1 stop

$315American Airlines

Sal, Mar 3 - Pzt, Mar 9

2:35 pm - 10:15 pm

STL

PWM

6h 40m

1 stop

12:35 pm - 8:55 pm

PWM

STL

9h 20m

2 stops

$322Southwest

Sal, Mar 3 - Pzt, Mar 9

12:20 pm - 11:05 pm

STL

PWM

9h 45m

1 stop

5:30 pm - 12:05 am

PWM

STL

7h 35m

2 stops

$328Southwest

Sal, Mar 24 - Pzt, Mar 30

7:41 am - 3:14 pm

STL

PWM

6h 33m

1 stop

4:23 pm - 10:59 pm

PWM

STL

7h 36m

1 stop

$334United Airlines

Cmt, Mar 7 - Çar, Mar 11

1:13 pm - 11:12 pm

STL

BGR

8h 59m

2 stops

7:15 pm - 11:27 pm

BGR

STL

5h 12m

1 stop

$360United Airlines

Pzt, Ağu 10 - Cmt, Ağu 15

Frontier flights from St. Louis to Maine

Our best Frontier deals on St. Louis to Maine flight tickets

Frontier

Feb 23

STL8:22 pmLambert-St Louis

27h 51m

1 stop

BOS1:13 amBoston Logan Intl

Feb 27

BOS6:00 amBoston Logan Intl

25h 51m

1 stop

STL6:51 amLambert-St Louis

$174

Frontier

Feb 18

STL8:17 pmLambert-St Louis

27h 56m

1 stop

BOS1:13 amBoston Logan Intl

Feb 22

BOS6:00 amBoston Logan Intl

25h 51m

1 stop

STL6:51 amLambert-St Louis

$180

Frontier

Apr 7

STL11:21 amLambert-St Louis

13h 05m

1 stop

BOS1:26 amBoston Logan Intl

Apr 8

BOS12:42 pmBoston Logan Intl

22h 48m

1 stop

STL10:30 amLambert-St Louis

$190

American Airlines flights from St. Louis to Maine

Our best American Airlines deals on St. Louis to Maine flight tickets

American Airlines

Mar 24

STL2:37 pmLambert-St Louis

8h 28m

1 stop

BOS12:05 amBoston Logan Intl

Mar 31

BOS6:30 amBoston Logan Intl

8h 37m

1 stop

STL2:07 pmLambert-St Louis

$213

American Airlines

Apr 28

STL4:30 pmLambert-St Louis

5h 10m

1 stop

BGR10:40 pmBangor

May 5

BGR6:40 amBangor

8h 21m

1 stop

STL2:01 pmLambert-St Louis

$279

American Airlines

Mar 3

STL8:00 amLambert-St Louis

8h 07m

1 stop

PWM5:07 pmPortland

Mar 9

PWM6:00 pmPortland

6h 44m

1 stop

STL11:44 pmLambert-St Louis

$315

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Pzt 3/2

8:22 pm-11:44 pm

2 stops26h 22m

Boston Logan Intl

Çar 3/4

12:43 pm-10:27 pm

1 stop10h 44m

$157

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Pzt 3/2

8:22 pm-1:13 am

1 stop27h 51m

Boston Logan Intl

Çar 3/4

12:43 pm-10:27 pm

1 stop10h 44m

$164

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Sal 4/28

4:30 pm-10:40 pm

1 stop5h 10m

Bangor

Sal 5/5

6:40 am-2:01 pm

1 stop8h 21m

$279

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Çar 4/1

5:15 pm-11:20 pm

1 stop5h 05m

Bangor

Sal 4/7

12:28 pm-11:58 pm

2 stops12h 30m

$299

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Çar 4/1

1:39 pm-11:20 pm

2 stops8h 41m

Bangor

Sal 4/7

12:28 pm-11:58 pm

2 stops12h 30m

$304

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sal 3/3

8:00 am-5:07 pm

1 stop8h 07m

Portland

Pzt 3/9

6:00 pm-11:44 pm

1 stop6h 44m

$315

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sal 3/3

2:35 pm-10:15 pm

1 stop6h 40m

Portland

Pzt 3/9

12:35 pm-8:55 pm

2 stops9h 20m

$322

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sal 3/24

12:20 pm-11:05 pm

1 stop9h 45m

Portland

Pzt 3/30

5:30 pm-12:05 am

2 stops7h 35m

$328

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Cmt 3/7

7:41 am-3:14 pm

1 stop6h 33m

Portland

Çar 3/11

4:23 pm-10:59 pm

1 stop7h 36m

$334

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Pzt 8/10

1:13 pm-11:12 pm

2 stops8h 59m

Bangor

Cmt 8/15

7:15 pm-11:27 pm

1 stop5h 12m

$360

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Maine?

The cheapest month to fly to Maine from St. Louis is in March. Flight prices, which tend to average around $335, are often lower during this time because this is during the off-season. If you aren’t able to travel to 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 Maine?

You are more likely to see cheaper flights to Maine from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Maine for around $431 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Maine from St. Louis for as low as $334 on momondo.

Cheap St. Louis to Maine flight deals and tips

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

Fastest flight time	2h 25m
Direct flights	Every day
Airports in Maine	49 airports

The fastest flight from St. Louis to Maine takes 2h 25m

Direct flights go from St. Louis to Maine every day.

There are 49 airports in Maine. From St. Louis there are direct flights to Boston Logan Intl (BOS).

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Maine?
Prices for flights from Lambert-St Louis Airport to Maine refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Maine?
There are 6 operators available for flights from Lambert-St Louis Airport to Maine as of February 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Maine?
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 Lambert-St Louis Airport to Maine.
What documentation or ID do you need to fly to Maine?
The travel and health documents you'll need for your trip to Maine 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 Maine. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Maine

Compare and see reviews for airlines that fly from St. Louis to Maine with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 9,279 reviews	Search United Airlines flights
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,271 reviews	Search American Airlines flights
Southwest	PriceFrom $284	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Maine for you.

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

Yes. All flights to Maine from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Maine from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Maine from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.