STL

$87 Find Cheap Flights from Maine to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flight Deals

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.

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

Fri, Oct 17 - Mon, Oct 20
Multiple Airlines Logo
8:24 pm - 6:10 pmBOS-STL
22h 46m1 stop
Multiple Airlines Logo
8:21 pm - 1:20 pmSTL-BOS
15h 59m2 stops
$273Multiple Airlines
Find Deal
Wed, Feb 25 - Sun, Mar 1
Spirit Airlines Logo
9:48 pm - 11:01 amBOS-STL
14h 13m1 stop
Spirit Airlines Logo
12:20 pm - 12:40 amSTL-BOS
11h 20m1 stop
$275Spirit Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
American Airlines Logo
8:00 am - 4:04 pmBOS-STL
9h 04m1 stop
American Airlines Logo
7:00 pm - 10:37 pmSTL-BOS
2h 37mnonstop
$276American Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Multiple Airlines Logo
12:31 pm - 11:02 amBOS-STL
23h 31m1 stop
Multiple Airlines Logo
7:45 pm - 10:08 pmSTL-BOS
25h 23m2 stops
$278Multiple Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
American Airlines Logo
4:20 pm - 8:20 pmBOS-STL
5h 00m1 stop
American Airlines Logo
1:59 pm - 11:59 pmSTL-BOS
9h 00m1 stop
$280American Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
United Airlines Logo
6:45 am - 11:47 amBGR-STL
6h 02m1 stop
United Airlines Logo
12:25 pm - 9:40 pmSTL-BGR
8h 15m1 stop
$286United Airlines
Find Deal
Thu, Oct 9 - Tue, Oct 21
Frontier Logo
9:50 am - 10:37 amBOS-STL
25h 47m1 stop
Frontier Logo
7:52 pm - 8:55 amSTL-BOS
36h 03m2 stops
$288Frontier
Find Deal
Sat, Oct 18 - Sat, Oct 25
United Airlines Logo
6:45 am - 11:47 amBGR-STL
6h 02m1 stop
United Airlines Logo
12:25 pm - 10:40 pmSTL-BGR
9h 15m2 stops
$291United Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 3
Delta Logo
6:00 am - 10:26 amPWM-STL
5h 26m1 stop
Delta Logo
1:30 pm - 11:09 pmSTL-PWM
8h 39m2 stops
$332Delta
Find Deal
Sat, Nov 8 - Tue, Nov 11
Delta Logo
6:00 am - 11:38 amBGR-STL
6h 38m1 stop
Delta Logo
5:14 pm - 11:28 pmSTL-BGR
5h 14m1 stop
$359Delta
Find Deal

Everything you should know

Cheapest round-trip
$273
Overall average: $460
Multiple Airlines
Fri 10/17Mon 10/20
BOS - STL • 1 stop
Cheapest non-stop
$317
Typical prices: $407-659
American Airlines
Tue 10/28Tue 11/4
BOS - STL • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$87
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Boston to St. Louis

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?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Glencoe
Shrewsbury

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

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

St. Louis (STL)

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