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

As of May 2026, 39 flights take off from St. Louis and land in Maine each week. The most common flight departure day for this route is Mon, with 21% of weekly flights taking off on this day.

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

Southwest, Delta, and American 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 68% 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 May 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.

$125 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.

5:25 pm - 11:40 pm

STL

BGR

5h 15m

1 stop

4:55 pm - 8:42 pm

BGR

STL

4h 47m

1 stop

$288Delta

Tue, Sep 1 - Mon, Sep 7

6:30 am - 4:20 pm

STL

BGR

8h 50m

2 stops

4:55 pm - 8:42 pm

BGR

STL

4h 47m

1 stop

$293Delta

Tue, Sep 1 - Mon, Sep 7

5:00 pm - 11:30 pm

STL

PWM

5h 30m

1 stop

6:00 am - 12:17 pm

PWM

STL

7h 17m

1 stop

$319Delta

Tue, Jul 7 - Tue, Jul 14

3:15 pm - 11:00 pm

STL

PWM

6h 45m

2 stops

5:30 am - 11:30 am

PWM

STL

7h 00m

1 stop

$324Southwest

Tue, Jul 14 - Tue, Jul 21

7:05 am - 2:58 pm

STL

BGR

6h 53m

1 stop

6:00 am - 11:47 am

BGR

STL

6h 47m

1 stop

$328Delta

Sat, Aug 22 - Sun, Aug 30

8:34 pm - 10:09 am

STL

BOS

12h 35m

1 stop

11:05 am - 7:39 pm

BOS

STL

9h 34m

1 stop

$334Frontier

Thu, Sep 24 - Mon, Sep 28

8:00 pm - 11:44 pm

STL

BOS

2h 44mnonstop

7:09 am - 9:13 am

BOS

STL

3h 04mnonstop

$335American Airlines

Tue, Sep 1 - Mon, Sep 7

1:20 pm - 11:25 pm

STL

BOS

9h 05m

1 stop

5:35 am - 2:50 pm

BOS

STL

10h 15m

2 stops

$336Southwest

Tue, Jul 14 - Tue, Jul 21

6:00 am - 11:53 am

STL

BOS

4h 53m

1 stop

5:23 pm - 9:21 pm

BOS

STL

4h 58m

1 stop

$337American Airlines

Wed, Jul 8 - Tue, Jul 14

6:31 pm - 7:52 am

STL

BOS

12h 21m

1 stop

6:00 am - 5:30 pm

BOS

STL

12h 30m

1 stop

$340Frontier

Thu, Jun 11 - Sun, Jun 14

Frontier flights from St. Louis to Maine

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

Frontier

Jun 11

STL6:31 pmLambert-St Louis

12h 21m

1 stop

BOS7:52 amBoston Logan Intl

Jun 14

BOS6:00 amBoston Logan Intl

12h 30m

1 stop

STL5:30 pmLambert-St Louis

$340

Frontier

Jul 8

STL4:09 pmLambert-St Louis

16h 00m

1 stop

BOS9:09 amBoston Logan Intl

Jul 19

BOS11:52 amBoston Logan Intl

6h 45m

1 stop

STL5:37 pmLambert-St Louis

$349

Frontier

Jul 7

STL6:34 pmLambert-St Louis

15h 30m

2 stops

BOS11:04 amBoston Logan Intl

Jul 21

BOS11:52 amBoston Logan Intl

6h 45m

1 stop

STL5:37 pmLambert-St Louis

$365

American Airlines flights from St. Louis to Maine

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

American Airlines

Jul 8

STL6:00 amLambert-St Louis

4h 53m

1 stop

BOS11:53 amBoston Logan Intl

Jul 14

BOS5:23 pmBoston Logan Intl

4h 58m

1 stop

STL9:21 pmLambert-St Louis

$337

American Airlines

Jul 15

STL6:00 amLambert-St Louis

5h 35m

1 stop

PWM12:35 pmPortland

Jul 21

PWM1:28 pmPortland

8h 27m

1 stop

STL8:55 pmLambert-St Louis

$339

American Airlines

Jun 8

STL5:03 pmLambert-St Louis

5h 00m

1 stop

BGR11:03 pmBangor

Jun 16

BGR5:35 amBangor

5h 37m

1 stop

STL10:12 amLambert-St Louis

$344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Tue 9/1

5:25 pm-11:40 pm

1 stop5h 15m

Bangor

Mon 9/7

4:55 pm-8:42 pm

1 stop4h 47m

$288

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Tue 9/1

6:30 am-4:20 pm

2 stops8h 50m

Bangor

Mon 9/7

4:55 pm-8:42 pm

1 stop4h 47m

$293

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 7/7

5:00 pm-11:30 pm

1 stop5h 30m

Portland

Tue 7/14

6:00 am-12:17 pm

1 stop7h 17m

$319

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 7/14

3:15 pm-11:00 pm

2 stops6h 45m

Portland

Tue 7/21

5:30 am-11:30 am

1 stop7h 00m

$324

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Sat 8/22

7:05 am-2:58 pm

1 stop6h 53m

Bangor

Sun 8/30

6:00 am-11:47 am

1 stop6h 47m

$328

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 9/24

8:34 pm-10:09 am

1 stop12h 35m

Boston Logan Intl

Mon 9/28

11:05 am-7:39 pm

1 stop9h 34m

$334

Quickest round-trip

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 9/1

8:00 pm-11:44 pm

Nonstop2h 44m

Boston Logan Intl

Mon 9/7

7:09 am-9:13 am

Nonstop3h 04m

$335

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 7/14

1:20 pm-11:25 pm

1 stop9h 05m

Boston Logan Intl

Tue 7/21

5:35 am-2:50 pm

2 stops10h 15m

$336

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 7/8

6:00 am-11:53 am

1 stop4h 53m

Boston Logan Intl

Tue 7/14

5:23 pm-9:21 pm

1 stop4h 58m

$337

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 6/11

6:31 pm-7:52 am

1 stop12h 21m

Boston Logan Intl

Sun 6/14

6:00 am-5:30 pm

1 stop12h 30m

$340

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 October. Flight prices, which tend to average around $151, 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $179.

How far in advance should I book a flight from St. Louis 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 $435 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 $333 on momondo.

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

You could potentially save up to 27% on your flight if you consider stops on a St. Louis to Maine flight.

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

Frequently asked questions about flying from St. Louis to Maine

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 May 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
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,419 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,763 reviews	Search United Airlines flights
American Airlines	PriceFrom $271	Free Cancellation	Rating 7.1 11,643 reviews	Search American Airlines flights
Southwest	PriceFrom $284	Free Cancellation	Rating 8.0 4,264 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.