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Maine

$150+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
avr. 27 — mai 41
dim. 4/27
dim. 5/4
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 avril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(American Airlines)

One-way from

$150
(American Airlines)

Popular in

May

Cheapest in

November

Average price

$386
Provider with most accurate pricing for Lambert-St Louis-Portland flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Portland flights.
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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. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in April 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 avril 22, 2025.

This American Airlines deal was found by Cheapflights users on 4/22. 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.
sam. 8/306:33 pmSTL - BGR
1 stop4h 17mAmerican Airlines
mer. 9/35:43 amBGR - STL
1 stop5h 10mAmerican Airlines
Deal found 4/22$259
This Delta deal was found by Cheapflights users on 4/22. 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.
jeu. 8/146:45 amSTL - BGR
2 stops7h 46mDelta
jeu. 8/215:08 amBGR - STL
1 stop6h 51mDelta
Deal found 4/22$264
This American Airlines deal was found by Cheapflights users on 4/22. 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.
mer. 9/107:23 amSTL - PWM
1 stop8h 10mAmerican Airlines
mer. 9/1712:03 pmPWM - STL
1 stop9h 20mAmerican Airlines
Deal found 4/22$289
This Delta deal was found by Cheapflights users on 4/22. 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.
ven. 6/63:40 pmSTL - BOS
1 stop6h 10mDelta
lun. 6/95:35 amBOS - STL
1 stop5h 08mDelta
Deal found 4/22$308
This American Airlines deal was found by Cheapflights users on 4/22. 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.
mer. 6/46:00 amSTL - BOS
1 stop8h 10mAmerican Airlines
sam. 6/78:00 amBOS - STL
Nonstop3h 08mAmerican Airlines
Deal found 4/22$309
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/2812:15 pmSTL - BOS
3 stops34h 14mMultiple Airlines
ven. 5/308:08 amBOS - STL
2 stops26h 07mMultiple Airlines
Deal found 4/22$312
This United Airlines deal was found by Cheapflights users on 4/22. 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.
jeu. 6/128:10 amSTL - BOS
1 stop15h 49mUnited Airlines
mer. 6/186:00 amBOS - STL
1 stop17h 45mUnited Airlines
Deal found 4/22$313
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/1510:10 amSTL - BOS
1 stop12h 19mSpirit Airlines
jeu. 7/1711:56 amBOS - STL
1 stop7h 36mSpirit Airlines
Deal found 4/22$316
This Delta deal was found by Cheapflights users on 4/22. 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.
lun. 7/75:40 pmSTL - PWM
1 stop5h 19mDelta
sam. 7/126:00 amPWM - STL
1 stop7h 24mDelta
Deal found 4/22$318
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/137:20 amSTL - PWM
1 stop7h 45mSouthwest
mer. 9/173:40 pmPWM - STL
2 stops7h 25mSouthwest
Deal found 4/22$328
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mer. 8/131:04 pmSTL - BGR
2 stops7h 35mUnited Airlines
lun. 8/186:15 pmBGR - STL
1 stop6h 19mUnited Airlines
Deal found 4/22$344
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/58:25 pmSTL - BOS
Nonstop2h 30mSouthwest
lun. 6/97:20 pmBOS - STL
1 stop5h 00mSouthwest
Deal found 4/22$353

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 avril 22, 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. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

sam. 8/30

6:33 pm-11:50 pm

1 stop4h 17m

Bangor

mer. 9/3

5:23 pm-8:58 pm

1 stop4h 35m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

jeu. 8/14

6:45 am-3:31 pm

2 stops7h 46m

Bangor

jeu. 8/21

5:08 am-10:59 am

1 stop6h 51m

$264

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

mer. 9/10

7:23 am-4:33 pm

1 stop8h 10m

Portland

mer. 9/17

12:03 pm-8:23 pm

1 stop9h 20m

$289

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

ven. 6/6

3:40 pm-10:50 pm

1 stop6h 10m

Boston Logan Intl

lun. 6/9

5:35 am-9:43 am

1 stop5h 08m

$308

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

mer. 6/4

6:00 am-3:10 pm

1 stop8h 10m

Boston Logan Intl

sam. 6/7

8:00 am-10:08 am

Nonstop3h 08m

$309

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

mer. 5/28

12:15 pm-11:29 pm

3 stops34h 14m

Boston Logan Intl

ven. 5/30

8:08 am-9:15 am

2 stops26h 07m

$312

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

jeu. 6/12

8:10 am-12:59 am

1 stop15h 49m

Boston Logan Intl

mer. 6/18

6:00 am-10:45 pm

1 stop17h 45m

$313

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

jeu. 5/15

10:10 am-11:29 pm

1 stop12h 19m

Boston Logan Intl

jeu. 7/17

11:56 am-6:32 pm

1 stop7h 36m

$316

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

lun. 7/7

5:40 pm-11:59 pm

1 stop5h 19m

Portland

sam. 7/12

6:00 am-12:24 pm

1 stop7h 24m

$318

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

sam. 9/13

7:20 am-4:05 pm

1 stop7h 45m

Portland

mer. 9/17

3:40 pm-10:05 pm

2 stops7h 25m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 30 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 May is currently the most expensive (average of $416). 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 avril 22, 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.

Rainfall in Maine by month

Plan your trip to Maine by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Maine when rainfall is around 2.9 in.

Temperature in Maine by month

Plan your trip to Maine by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 avril 22, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from St. Louis to Maine to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Boarding

8.2

Food

7.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $150. However, be on the lookout for offers from Spirit Airlines and Delta, 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 - Bangor and Lambert-St Louis - Portland.

  • 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 May is currently the most expensive (average of $416). 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 avril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$201Average$430FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$410FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$406FlexibilityNo cancel feeOn-time63%

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