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>

$83 CHEAP FLIGHTS from Maine to St. Louis

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Cheap Flights from Maine to St. Louis

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Maine to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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, Jul 10 - Sun, Jul 13

12:26 pm - 9:52 amBOS-STL

22h 26m1 stop

10:47 am - 11:31 amSTL-BOS

23h 44m1 stop

$172Spirit Airlines

Find Deal

Thu, Jul 3 - Mon, Jul 7

8:03 pm - 5:04 pmBOS-STL

22h 01m1 stop

7:13 pm - 8:39 amSTL-BOS

12h 26m1 stop

$176Spirit Airlines

Find Deal

Wed, Sep 17 - Wed, Sep 17

8:35 am - 3:24 pmBOS-STL

7h 49m1 stop

6:55 pm - 10:37 pmSTL-BOS

2h 42mnonstop

$199American Airlines

Find Deal

Mon, Jun 30 - Thu, Jul 10

9:40 am - 11:53 pmBOS-STL

15h 13m1 stop

10:47 am - 11:31 amSTL-BOS

23h 44m1 stop

$232

Find Deal

Thu, Jul 10 - Fri, Jul 18

12:26 pm - 9:52 amBOS-STL

22h 26m1 stop

5:40 pm - 8:35 amSTL-BOS

13h 55m1 stop

$237

Find Deal

Sat, Aug 30 - Wed, Sep 3

1:00 pm - 8:50 pmBOS-STL

8h 50m1 stop

9:56 am - 6:48 pmSTL-BOS

7h 52m1 stop

$238American Airlines

Find Deal

Mon, Jun 30 - Fri, Jul 11

9:40 am - 11:53 pmBOS-STL

15h 13m1 stop

5:40 pm - 8:35 amSTL-BOS

13h 55m1 stop

$282Frontier

Find Deal

Fri, Aug 15 - Sun, Aug 17

10:28 am - 1:59 pmBOS-STL

28h 31m1 stop

7:54 pm - 10:58 amSTL-BOS

14h 04m1 stop

$296Frontier

Find Deal

Tue, Jul 8 - Tue, Jul 15

7:00 pm - 9:05 pmBOS-STL

3h 05mnonstop

7:40 pm - 11:10 pmSTL-BOS

2h 30mnonstop

$315Southwest

Find Deal

Tue, Jul 8 - Tue, Jul 15

7:00 pm - 9:05 pmBOS-STL

3h 05mnonstop

2:50 pm - 6:25 pmSTL-BOS

2h 35mnonstop

$317Southwest

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$83

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly and prices are also 8% 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.

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

STL

$83 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.

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