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$55+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Feb 27 — Mrz 61
Do 2/27
Do 3/6
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 Februar 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Delta)

One-way from

$55
(Frontier)

Popular in

June

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
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 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 Februar 22, 2025.

This Delta deal was found by Cheapflights users on 2/21. 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.
Mo 4/145:37 pmSTL - BOS
1 stop5h 15mDelta
Di 4/151:00 pmBOS - STL
1 stop6h 18mDelta
Deal found 2/21$237
This Mytrip deal was found by Cheapflights users on 2/21. 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.
Mo 5/1212:15 pmSTL - BOS
3 stops26h 15mMultiple Airlines
Sa 5/176:47 pmBOS - STL
2 stops24h 54mMultiple Airlines
Deal found 2/21$238
This Trip.com deal was found by Cheapflights users on 2/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 3/65:24 pmSTL - BOS
1 stop13h 49mFrontier
Sa 3/86:00 amBOS - STL
1 stop18h 49mFrontier
Deal found 2/21$253
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Di 4/16:10 amSTL - BGR
1 stop4h 47mAmerican Airlines
Sa 4/53:52 pmBGR - STL
1 stop6h 06mAmerican Airlines
Deal found 2/20$259
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sa 3/85:24 pmSTL - PWM
1 stop14h 24mFrontier
Sa 3/1510:08 amPWM - STL
1 stop22h 50mFrontier
Deal found 2/20$269
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Do 4/36:47 pmSTL - BOS
1 stop14h 12mSpirit Airlines
So 4/611:14 amBOS - STL
1 stop7h 38mSpirit Airlines
Deal found 2/21$279
This Delta deal was found by Cheapflights users on 2/20. 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.
Di 4/11:48 pmSTL - BGR
2 stops8h 37mDelta
Sa 4/512:35 pmBGR - STL
1 stop5h 20mDelta
Deal found 2/20$279
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Di 4/15:55 amSTL - BOS
1 stop8h 54mAmerican Airlines
Mi 4/96:30 amBOS - STL
Nonstop3h 12mAmerican Airlines
Deal found 2/22$303
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Do 4/31:38 pmSTL - PWM
1 stop8h 06mAmerican Airlines
Mo 4/77:20 amPWM - STL
1 stop8h 25mAmerican Airlines
Deal found 2/20$315
This Southwest deal was found by Cheapflights users on 2/20. 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.
Do 4/36:35 pmSTL - PWM
1 stop4h 30mSouthwest
Mo 4/71:00 pmPWM - STL
2 stops10h 00mSouthwest
Deal found 2/20$322
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Di 4/110:40 amSTL - BOS
2 stops9h 07mUnited Airlines
Mi 4/97:43 amBOS - STL
1 stop7h 59mUnited Airlines
Deal found 2/22$322
This Southwest deal was found by Cheapflights users on 2/21. 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.
Do 3/138:50 pmSTL - BOS
Nonstop2h 30mSouthwest
Mo 3/174:00 pmBOS - STL
1 stop7h 55mSouthwest
Deal found 2/21$353

Find flights from St. Louis to Maine within your budget

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 Februar 22, 2025.

Fly from

St. Louis

Fly to

Maine

Route

Depart

Return

Price

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mo 4/14

5:37 pm-11:52 pm

1 stop5h 15m

Boston Logan Intl

Di 4/15

1:00 pm-6:18 pm

1 stop6h 18m

$237

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mo 5/12

12:15 pm-3:30 pm

3 stops26h 15m

Boston Logan Intl

Sa 5/17

6:47 pm-6:41 pm

2 stops24h 54m

$238

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Do 3/6

5:24 pm-8:13 am

1 stop13h 49m

Boston Logan Intl

Sa 3/8

6:00 am-11:49 pm

1 stop18h 49m

$253

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Di 4/1

6:10 am-11:57 am

1 stop4h 47m

Bangor

Sa 4/5

3:52 pm-8:58 pm

1 stop6h 06m

$259

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sa 3/8

5:24 pm-8:48 am

1 stop14h 24m

Portland

Sa 3/15

10:08 am-7:58 am

1 stop22h 50m

$269

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Do 4/3

6:47 pm-9:59 am

1 stop14h 12m

Boston Logan Intl

So 4/6

11:14 am-5:52 pm

1 stop7h 38m

$279

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Di 4/1

1:48 pm-11:25 pm

2 stops8h 37m

Bangor

Sa 4/5

12:35 pm-4:55 pm

1 stop5h 20m

$279

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Di 4/1

5:55 am-3:49 pm

1 stop8h 54m

Boston Logan Intl

Mi 4/9

6:30 am-8:42 am

Nonstop3h 12m

$303

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Do 4/3

1:38 pm-10:44 pm

1 stop8h 06m

Portland

Mo 4/7

7:20 am-2:45 pm

1 stop8h 25m

$315

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Do 4/3

6:35 pm-12:05 am

1 stop4h 30m

Portland

Mo 4/7

1:00 pm-10:00 pm

2 stops10h 00m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 34 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.

Travel insights for flights from St. Louis to Maine

Get recent, data-driven insights about flights from St. Louis to Maine including ideal travel times, pricing trends, and more.

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 April is currently the most expensive (average of $498). 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 Februar 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 Februar 22, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,396 reviews

Food

7.1

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Frontier, with whom users have recently found tickets for as low as $55. 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 April is currently the most expensive (average of $498). 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 5 airlines flying from St. Louis to Maine

Discover the top 5 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 Februar 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$153Average$285FlexibilityNo cancel feeOn-time62%
DeltaCheapest$258Average$353FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$434FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$426FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$377Average$548FlexibilityNo cancel feeOn-time69%
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