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Cheap flights from Maine to St. Louis from $45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to St. Louis departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Maine to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Maine to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Maine to St. Louis.

Cheap last minute flights

Planning a quick getaway from Maine to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Maine to St. Louis

Find recent round-trip train or bus tickets from Maine to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
11:33 am - 11:49 pmBOS-STL
13h 16m1 stop
4:57 pm - 12:47 amSTL-BOS
6h 50m1 stop
$110Frontier
Find Deal
Mon, Mar 17 - Tue, Apr 1
6:00 am - 7:17 amBOS-STL
26h 17m1 stop
5:05 pm - 12:27 amSTL-BOS
6h 22m1 stop
$116Frontier
Find Deal
Sat, Feb 8 - Mon, Feb 10
5:40 am - 2:42 pmBOS-STL
10h 02m1 stop
5:20 pm - 12:44 amSTL-BOS
6h 24m1 stop
Thu, Feb 27 - Mon, Mar 3
6:00 am - 11:31 pmBOS-STL
18h 31m1 stop
4:00 pm - 9:13 amSTL-BOS
16h 13m1 stop
Tue, Feb 11 - Tue, Feb 18
6:56 pm - 2:43 pmBOS-STL
20h 47m1 stop
4:28 pm - 10:36 amSTL-BOS
17h 08m1 stop
$165Spirit Airlines
Find Deal
Mon, Feb 3 - Thu, Feb 6
6:00 am - 2:43 pmBOS-STL
9h 43m1 stop
3:48 pm - 4:12 pmSTL-BOS
23h 24m2 stops
$175Spirit Airlines
Find Deal
Thu, Feb 6 - Tue, Feb 11
12:39 pm - 5:54 pmBGR-STL
6h 15m1 stop
6:24 pm - 11:45 pmSTL-BGR
4h 21m1 stop
$259American Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
3:47 pm - 11:31 pmBGR-STL
8h 44m2 stops
6:10 am - 11:54 amSTL-BGR
4h 44m1 stop
$274Delta
Find Deal
Tue, Mar 18 - Tue, Mar 25
8:45 am - 4:20 pmBOS-STL
8h 35m1 stop
2:21 pm - 5:58 pmSTL-BOS
2h 37mnonstop
$287American Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
4:46 pm - 9:49 pmPWM-STL
6h 03m1 stop
4:40 pm - 11:55 pmSTL-PWM
6h 15m1 stop
$317Delta
Find Deal
Wed, Feb 5 - Wed, Feb 12
6:00 am - 2:43 pmBOS-STL
9h 43m1 stop
$45Spirit Airlines
Find Deal
Tue, Feb 4
6:00 am - 2:43 pmBOS-STL
9h 43m1 stop
$47Spirit Airlines
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Tue, Feb 4
11:33 am - 11:49 pmBOS-STL
13h 16m1 stop
$61Frontier
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Mon, Mar 17
6:00 am - 11:41 pmBOS-STL
18h 41m1 stop
$63Frontier
Find Deal
Mon, Feb 3
11:31 am - 11:30 amBOS-STL
24h 59m3 stops
Tue, Feb 4
7:00 am - 11:45 amBOS-STL
29h 45m3 stops
Wed, Apr 30
4:10 pm - 9:45 pmPWM-STL
6h 35m1 stop
$159United Airlines
Find Deal
Sat, Feb 1
4:46 pm - 11:14 pmPWM-STL
7h 28m2 stops
$164Delta
Find Deal
Sat, Feb 1
6:05 am - 6:01 pmBOS-STL
12h 56m2 stops
$173Delta
Find Deal
Wed, Feb 12
1:38 pm - 11:30 pmPWM-STL
10h 52m2 stops
$249United Airlines
Find Deal
Sun, Feb 9
6:00 am - 11:31 pmBOS-STL
18h 31m1 stop
5:05 pm - 12:27 amSTL-BOS
6h 22m1 stop
$278Frontier
Find Deal
Sun, Jan 19 - Sat, Jan 25
6:00 am - 11:31 pmBOS-STL
18h 31m1 stop
5:05 pm - 12:27 amSTL-BOS
6h 22m1 stop
$310Frontier
Find Deal
Sun, Jan 19 - Fri, Jan 24
6:30 am - 8:54 amBOS-STL
3h 24mnonstop
12:45 pm - 10:12 pmSTL-BOS
8h 27m1 stop
$357American Airlines
Find Deal
Sun, Jan 19 - Sun, Jan 19
6:25 am - 6:41 pmBOS-STL
13h 16m3 stops
9:50 am - 11:32 pmSTL-BOS
12h 42m3 stops
Sun, Jan 19 - Fri, Jan 24
6:00 am - 2:43 pmBOS-STL
9h 43m1 stop
9:50 am - 11:32 pmSTL-BOS
12h 42m3 stops
Sun, Jan 19 - Fri, Jan 24
7:00 am - 12:48 pmBOS-STL
30h 48m1 stop
8:00 am - 11:37 pmSTL-BOS
14h 37m2 stops
$710United Airlines
Find Deal
Sun, Jan 19 - Sat, Jan 25
6:00 pm - 6:59 pmBOS-STL
25h 59m1 stop
5:30 pm - 2:01 pmSTL-BOS
19h 31m1 stop
$746United Airlines
Find Deal
Sat, Jan 18 - Mon, Jan 20
5:34 am - 11:47 amPWM-STL
7h 13m1 stop
4:40 pm - 11:51 pmSTL-PWM
6h 11m1 stop
$827Delta
Find Deal
Fri, Jan 17 - Mon, Jan 20
5:23 am - 3:44 pmPWM-STL
11h 21m2 stops
4:40 pm - 11:51 pmSTL-PWM
6h 11m1 stop
$832Delta
Find Deal
Fri, Jan 17 - Mon, Jan 20
6:00 am - 2:07 pmBOS-STL
9h 07m1 stop
9:25 am - 1:05 pmSTL-BOS
2h 40mnonstop
$835American Airlines
Find Deal
Sat, Jan 18 - Mon, Jan 20
6:05 pm - 8:15 pmBOS-STL
3h 10mnonstop
7:15 pm - 10:45 pmSTL-BOS
2h 30mnonstop
$337Southwest
Find Deal
Tue, Mar 25 - Wed, Mar 26
11:38 am - 1:51 pmBOS-STL
3h 13mnonstop
9:28 am - 1:01 pmSTL-BOS
2h 33mnonstop
$350American Airlines
Find Deal
Thu, Mar 6 - Tue, Mar 11
10:38 am - 1:00 pmBOS-STL
3h 22mnonstop
9:25 am - 1:01 pmSTL-BOS
2h 36mnonstop
$351American Airlines
Find Deal
Wed, Feb 12 - Tue, Feb 18
10:38 am - 1:00 pmBOS-STL
3h 22mnonstop
2:21 pm - 5:58 pmSTL-BOS
2h 37mnonstop
$356American Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
10:38 am - 1:00 pmBOS-STL
3h 22mnonstop
9:25 am - 1:05 pmSTL-BOS
2h 40mnonstop
$357American Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
6:15 am - 8:30 amBOS-STL
3h 15mnonstop
8:25 am - 11:55 amSTL-BOS
2h 30mnonstop
$362Southwest
Find Deal
Sat, Feb 1 - Sat, Mar 1
11:38 am - 1:51 pmBOS-STL
3h 13mnonstop
2:21 pm - 5:58 pmSTL-BOS
2h 37mnonstop
$363American Airlines
Find Deal
Thu, Feb 27 - Mon, Mar 3
11:38 am - 1:51 pmBOS-STL
3h 13mnonstop
9:28 am - 1:01 pmSTL-BOS
2h 33mnonstop
$379American Airlines
Find Deal
Fri, Mar 14 - Tue, Mar 18
10:38 am - 1:00 pmBOS-STL
3h 22mnonstop
2:21 pm - 5:58 pmSTL-BOS
2h 37mnonstop
$386American Airlines
Find Deal
Wed, Feb 12 - Fri, Feb 14
11:38 am - 1:51 pmBOS-STL
3h 13mnonstop
2:21 pm - 5:58 pmSTL-BOS
2h 37mnonstop
$391American Airlines
Find Deal
Tue, Feb 25 - Fri, Feb 28

Frontier flights from Maine to St. Louis

Our best Frontier deals on Maine to St. Louis flight tickets
Frontier
Mar 17
BOS11:33 amBoston Logan Intl
13h 16m
1 stop
STL11:49 pmLambert-St Louis
Apr 1
STL4:57 pmLambert-St Louis
6h 50m
1 stop
BOS12:47 amBoston Logan Intl
Frontier
Feb 8
BOS6:00 amBoston Logan Intl
26h 17m
1 stop
STL7:17 amLambert-St Louis
Feb 10
STL5:05 pmLambert-St Louis
6h 22m
1 stop
BOS12:27 amBoston Logan Intl
Frontier
Feb 6
BOS6:00 amBoston Logan Intl
18h 31m
1 stop
STL11:31 pmLambert-St Louis
Feb 11
STL5:05 pmLambert-St Louis
6h 22m
1 stop
BOS12:27 amBoston Logan Intl

Spirit Airlines flights from Maine to St. Louis

Our best Spirit Airlines deals on Maine to St. Louis flight tickets
Spirit Airlines
Feb 3
BOS6:56 pmBoston Logan Intl
20h 47m
1 stop
STL2:43 pmLambert-St Louis
Feb 6
STL4:28 pmLambert-St Louis
17h 08m
1 stop
BOS10:36 amBoston Logan Intl
Spirit Airlines
Feb 6
BOS6:00 amBoston Logan Intl
9h 43m
1 stop
STL2:43 pmLambert-St Louis
Feb 11
STL3:48 pmLambert-St Louis
23h 24m
2 stops
BOS4:12 pmBoston Logan Intl
Spirit Airlines
Feb 3
BOS8:29 pmBoston Logan Intl
19h 14m
2 stops
STL2:43 pmLambert-St Louis
Feb 6
STL4:28 pmLambert-St Louis
17h 08m
1 stop
BOS10:36 amBoston Logan Intl

See travel insights to St. Louis from

How to get the cheapest flight ticket from Maine to St. Louis

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

What is the cheapest month to fly to St. Louis?

In general, September is the cheapest month to fly from Maine to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $402. The month of November is another great option to travel to St. Louis, with average flight prices from Maine averaging around $422.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $443. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $638. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Maine in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $441 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $609 per ticket.

How far in advance should I book a flight to St. Louis?

The best time to book a flight to St. Louis from Maine is 60 days out, which is when prices tend to be around $493. In the past 72 hours, momondo users found flights from Maine to St. Louis for as low as $339.

Cheap Maine to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to St. Louis

Best Price Found

$45

Fastest flight time

2h 55m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Maine in the past 72 hours is $45. The best round-trip flight deal from Maine to St. Louis found on momondo in the last 72 hours is $110.
The fastest flight from Maine to St. Louis takes 2h 55m
Direct flights go from Maine to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Maine to Lambert-St Louis Airport?

    Prices for flights from Maine to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Maine to Lambert-St Louis Airport?

  • How old do you have to be to fly from Maine to Lambert-St Louis Airport?

    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 Maine to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Best airlines flying from Maine to St. Louis

Compare and see reviews for airlines that fly from Maine to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $241Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $273Free CancellationRating
8.0
8,508 reviews
Search Delta flights
SouthwestPriceFrom $351Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
United AirlinesPriceFrom $366Free CancellationRating
7.4
8,961 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Collinsville
Florissant
Maryland Heights
Hermann
Fairview Heights
O'Fallon
Fenton
Farmington
Alton
Wentzville
St. Peters
Eureka
Festus
Clayton
Edwardsville
Glencoe
Litchfield
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Maine to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Maine to St. Louis with flexible booking policies on momondo?

Flights from Maine to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Maine to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Maine.

I’m not ready to book a flight from Maine to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Maine to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.


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