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>

$100 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

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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

Tue, May 5 - Wed, May 6

7:07 am - 11:47 am

PWM

STL

5h 40m

1 stop

2:33 pm - 11:27 pm

STL

PWM

7h 54m

1 stop

$299American Airlines

Thu, Apr 9 - Tue, Apr 14

6:03 am - 12:22 pm

PWM

STL

7h 19m

1 stop

6:48 am - 12:05 pm

STL

PWM

4h 17m

1 stop

$315Delta

Mon, Apr 13 - Wed, Apr 15

6:01 pm - 11:46 pm

PWM

STL

6h 45m

1 stop

6:35 am - 3:09 pm

STL

PWM

7h 34m

1 stop

$319American Airlines

Tue, Apr 7 - Thu, Apr 9

3:50 pm - 9:05 pm

PWM

STL

6h 15m

1 stop

5:40 am - 2:10 pm

STL

PWM

7h 30m

2 stops

$320Southwest

Mon, Apr 13 - Wed, Apr 15

2:50 pm - 8:55 pm

PWM

STL

7h 05m

2 stops

2:30 pm - 10:35 pm

STL

PWM

7h 05m

2 stops

$325Southwest

Thu, Apr 23 - Thu, May 7

7:53 pm - 11:19 pm

BGR

STL

28h 26m

1 stop

6:55 pm - 9:26 am

STL

BGR

37h 31m

2 stops

$329Multiple Airlines

Tue, May 5 - Wed, May 6

4:50 pm - 9:13 pm

PWM

STL

5h 23m

1 stop

9:21 am - 7:04 pm

STL

PWM

8h 43m

2 stops

$343United Airlines

Thu, Apr 9 - Mon, Apr 13

5:30 am - 5:34 pm

BOS

STL

13h 04m

1 stop

4:59 pm - 10:21 am

STL

BOS

16h 22m

1 stop

$346Frontier

Fri, May 8 - Sat, May 9

6:00 am - 8:55 am

BOS

STL

27h 55m

1 stop

5:27 pm - 1:24 am

STL

BOS

6h 57m

1 stop

$347Frontier

Sun, Apr 5 - Tue, Apr 7

11:31 am - 7:51 am

BOS

STL

21h 20m

1 stop

11:21 am - 1:55 pm

STL

BOS

25h 34m

2 stops

$348Multiple Airlines

Useful Info

Low season	January
High season	May
Cheapest flight	$100

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly and prices are also 5% 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

$100 Find Cheap Flights from Maine to St. Louis

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

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