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Maine

$87+ Cheap flights from St. Louis (STL) to Maine

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from St. Louis to Maine

Keep the following information in mind while searching for St. Louis to Maine flight deals. Data was last updated septiembre 15, 2025.

Round-trip from

$237
(Delta)

One-way from

$87
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$391
From Lambert-St Louis to Maine
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One-way flight from Lambert-St Louis to Maine
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Maine

Cheapest flights from St. Louis to Maine
Explore the most affordable flight options available from St. Louis to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/14:10 pmSTL - PWM
1 stop7h 24mDelta
mié. 10/86:00 amPWM - STL
1 stop5h 26mDelta
Deal found 9/13$237
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:40 amSTL - PWM
1 stop4h 20mDelta
sáb. 11/81:27 pmPWM - STL
1 stop5h 35mDelta
Deal found 9/13$247
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1910:57 amSTL - BOS
1 stop23h 29mMultiple Airlines
jue. 10/238:24 pmBOS - STL
2 stops14h 52mMultiple Airlines
Deal found 9/14$251
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1910:57 amSTL - BOS
1 stop23h 29mMultiple Airlines
mié. 10/223:00 pmBOS - STL
2 stops19h 22mMultiple Airlines
Deal found 9/14$254
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/146:00 amSTL - BOS
1 stop6h 25mUnited Airlines
mié. 11/59:40 amBOS - STL
1 stop7h 09mUnited Airlines
Deal found 9/12$255
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1610:57 amSTL - BOS
1 stop12h 02mMultiple Airlines
dom. 10/2611:44 amBOS - STL
2 stops22h 48mMultiple Airlines
Deal found 9/14$256
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1610:57 amSTL - BOS
1 stop12h 02mMultiple Airlines
sáb. 10/256:17 amBOS - STL
2 stops28h 05mMultiple Airlines
Deal found 9/14$258
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/187:15 pmSTL - BOS
1 stop15h 11mSpirit Airlines
sáb. 10/252:15 pmBOS - STL
2 stops20h 47mSpirit Airlines
Deal found 9/14$259
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:00 amSTL - BGR
1 stop5h 11mAmerican Airlines
sáb. 11/83:52 pmBGR - STL
1 stop6h 08mAmerican Airlines
Deal found 9/14$259
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/118:42 amSTL - BOS
1 stop8h 53mAmerican Airlines
mié. 10/154:15 pmBOS - STL
Nonstop3h 11mAmerican Airlines
Deal found 9/13$260
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/296:00 amSTL - BOS
1 stop8h 04mAmerican Airlines
mié. 11/57:45 amBOS - STL
Nonstop3h 25mAmerican Airlines
Deal found 9/14$261
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/179:53 amSTL - BOS
1 stop8h 06mAmerican Airlines
vie. 1/94:10 pmBOS - STL
1 stop8h 39mAmerican Airlines
Deal found 9/14$262

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Maine that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 15, 2025.
Use the filters below to find and compare flights from St. Louis to Maine that are best for you.

Fly from

St. Louis

Fly to

Maine

Route

Depart

Return

Price

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

jue. 11/6

6:40 am-12:00 pm

1 stop4h 20m

Portland

sáb. 11/8

1:27 pm-6:02 pm

1 stop5h 35m

$247

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

sáb. 10/25

7:23 am-1:47 pm

1 stop5h 24m

Bangor

sáb. 11/1

5:24 pm-10:08 pm

1 stop5h 44m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

jue. 10/23

4:45 pm-11:19 pm

1 stop5h 34m

Bangor

lun. 10/27

6:00 am-9:56 am

1 stop4h 56m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

mar. 10/28

9:31 am-4:23 pm

1 stop5h 52m

Bangor

mar. 11/4

5:19 am-12:20 pm

1 stop8h 01m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

jue. 11/6

6:00 am-12:11 pm

1 stop5h 11m

Bangor

sáb. 11/8

3:52 pm-9:00 pm

1 stop6h 08m

$259

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

mié. 12/17

9:53 am-6:59 pm

1 stop8h 06m

Boston Logan Intl

mar. 1/6

4:10 pm-11:49 pm

1 stop8h 39m

$262

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

sáb. 10/18

7:05 am-6:18 pm

2 stops10h 13m

Bangor

mar. 10/28

5:19 am-2:43 pm

2 stops10h 24m

$269

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

sáb. 10/18

6:00 am-6:18 pm

2 stops11h 18m

Bangor

sáb. 10/25

1:45 pm-11:06 pm

2 stops10h 21m

$269

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

lun. 10/20

5:40 pm-11:28 pm

1 stop4h 48m

Bangor

mar. 10/28

5:19 am-12:20 pm

1 stop8h 01m

$274

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

lun. 10/20

5:40 pm-11:28 pm

1 stop4h 48m

Bangor

sáb. 10/25

1:45 pm-11:06 pm

2 stops10h 21m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 52 results
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Best time to book a flight from St. Louis to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Maine

What is the cheapest month to book a flight from St. Louis to Maine?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Maine (average of $296). Flying from St. Louis to Maine in July is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to ME?

Find hourly flight availability from St. Louis to Maine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 15, 2025.

When flying from St. Louis to Maine, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from St. Louis to Maine?

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maine. Reviews last updated septiembre 15, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to Maine to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Maine. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Maine?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Maine.

  • How long is the flight from St. Louis to Maine?

    Airlines like Delta, American Airlines, and United Airlines fly from St. Louis to Maine in about 4h 20m. The time it takes to get you to your destination can typically vary by up to 1h 04m. Airlines will cover a distance of 1092 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from St. Louis to Maine one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $95. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from St. Louis to Maine for a low price.

  • What are the most popular routes from St. Louis to Maine?

    The most popular flight routes from St. Louis to Maine are Lambert-St Louis - Boston Logan Intl, Lambert-St Louis - Portland and Lambert-St Louis - Bangor.

  • Can I find deals for flights from St. Louis to Maine that include hotel bookings?

    Yes. In addition to deals on St. Louis to Maine flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Maine?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Maine.

  • Can I find deals for business class flights from St. Louis to Maine?

    Yes. Cheapflights offers flight deals from St. Louis to Maine by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Maine?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Maine (average of $296). Flying from St. Louis to Maine in July is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Maine

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Maine

Discover the top 4 airlines that operate flights from St. Louis to Maine. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$201Average$382FlexibilityNo cancel feeOn-time69%
DeltaCheapest$229Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$308Average$462FlexibilityNo cancel feeOn-time63%

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