How does KAYAK find such low prices on flights from Maine to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to St. Louis. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Maine is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Maine to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Maine with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$67 CHEAP FLIGHTS from Maine to St. Louis

STL

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

...and more

Travelers love KAYAK

41 299 237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$315

Overall average: $438

American Airlines

Thu 4/9Tue 4/14

PWM - STL • 1 stop

Cheapest non-stop

$323

Typical prices: $414-$621

American Airlines

Thu 4/9Sat 4/11

BOS - STL • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to St. Louis!

Flight Deals

Cheap Flights from Maine to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Maine to St. Louis

Thu, Apr 9 - Tue, Apr 14

5:45 pm - 11:48 pm

PWM

STL

7h 03m

1 stop

12:11 pm - 11:10 pm

STL

PWM

9h 59m

1 stop

$315American Airlines

Wed, Apr 15 - Fri, May 1

5:46 pm - 11:48 pm

BGR

STL

7h 02m

1 stop

8:53 am - 5:05 pm

STL

BGR

7h 12m

1 stop

$319American Airlines

Sun, Feb 22 - Wed, Feb 25

12:30 pm - 11:59 pm

BOS

STL

12h 29m

1 stop

3:49 pm - 9:06 am

STL

BOS

16h 17m

1 stop

$320Frontier

Fri, Feb 20 - Sun, Feb 22

6:00 am - 6:51 am

BOS

STL

25h 51m

1 stop

3:49 pm - 1:13 am

STL

BOS

32h 24m

2 stops

$321Multiple Airlines

Fri, Mar 27 - Tue, Mar 31

12:35 pm - 9:49 am

BOS

STL

22h 14m

2 stops

11:27 am - 1:13 am

STL

BOS

12h 46m

1 stop

$322Frontier

Thu, Apr 9 - Tue, Apr 14

2:50 pm - 10:55 pm

PWM

STL

9h 05m

2 stops

6:35 am - 12:20 pm

STL

PWM

4h 45m

1 stop

$322Southwest

Thu, Mar 12 - Tue, Mar 17

4:23 pm - 11:19 pm

BOS

STL

7h 56m

1 stop

4:51 pm - 4:54 pm

STL

BOS

23h 03m

1 stop

$323Multiple Airlines

Thu, Apr 9 - Tue, Apr 14

2:50 pm - 10:55 pm

PWM

STL

9h 05m

2 stops

1:45 pm - 10:20 pm

STL

PWM

7h 35m

2 stops

$327Southwest

Sat, Feb 14 - Tue, Feb 17

7:31 pm - 11:59 pm

PWM

STL

5h 28m

1 stop

11:25 am - 11:20 pm

STL

PWM

10h 55m

2 stops

$344United Airlines

Tue, Apr 21 - Sun, May 3

4:23 pm - 9:08 pm

PWM

STL

5h 45m

1 stop

7:45 am - 2:14 pm

STL

PWM

5h 29m

1 stop

$353United Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$67

Best time to beat the crowds but there is an average 14% increase in price.

Most popular time to fly and prices are also 4% lower on average.

Flight from Boston to St. Louis

How does KAYAK find such low prices on flights from Maine to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Maine is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Maine to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Maine with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

O'Fallon

Wentzville

Farmington

Eureka

Litchfield

Grafton

Shrewsbury

Glencoe

Everything you need to know for your flight to St. Louis

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in St. Louis

St. Louis (STL)

STL

$67 Find Cheap Flights from Maine to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

Everything you should know

Cheap Flights from Maine to St. Louis

Recent round-trip flight deals from Maine to St. Louis

Recent one-way flight deals from Maine to St. Louis

Recent last minute flight deals from Maine to St. Louis

Recent direct flight deals from Maine to St. Louis

Good to know

FAQs for booking flights from Maine to St. Louis

How does KAYAK find such low prices on flights from Maine to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Maine is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Maine to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Maine with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near St. Louis?

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

Cabin class types available on flights to Maine

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight