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St. Louis

$45+ Cheap flights from Maine to St. Louis (STL)

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — STL
Jan 19 — Jan 261
Sun 1/19
Sun 1/26
1 adult, Economy
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Cheap flight deals from Maine to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Maine (USME) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 14, 2025.

Round-trip from

$138
(Mytrip)

One-way from

$45
(FlightHub)
From Maine to Lambert-St Louis
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One-way flight from Maine to Lambert-St Louis
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Find flight deals from Maine to St. Louis

Cheapest flights from Maine to St. Louis
Explore the most affordable flight options available from Maine to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2025.

This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/319:02 pmPWM - STL
1 stop27h 29mFrontier
Sun 2/28:22 amSTL - PWM
1 stop8h 54mFrontier
Deal found 1/13$138
This Trip.com deal was found by Cheapflights users on 1/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/26:00 amBOS - STL
1 stop18h 31mFrontier
Tue 2/45:05 pmSTL - BOS
1 stop6h 22mFrontier
Deal found 1/13$148
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/66:00 amBOS - STL
1 stop9h 43mSpirit Airlines
Tue 2/113:48 pmSTL - BOS
2 stops23h 24mSpirit Airlines
Deal found 1/14$175
This CheapOair deal was found by Cheapflights users on 1/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/296:00 amBOS - STL
1 stop18h 31mMultiple Airlines
Thu 1/304:28 pmSTL - BOS
1 stop17h 08mMultiple Airlines
Deal found 1/14$202
This American Airlines deal was found by Cheapflights users on 1/13. 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.
Wed 2/55:08 amBGR - STL
1 stop6h 16mAmerican Airlines
Tue 2/116:00 amSTL - BGR
1 stop5h 05mAmerican Airlines
Deal found 1/13$259
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/59:00 amBGR - STL
1 stop8h 25mUnited Airlines
Tue 2/118:00 amSTL - BGR
2 stops11h 38mUnited Airlines
Deal found 1/13$264
This Delta deal was found by Cheapflights users on 1/13. 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.
Thu 2/136:00 amBGR - STL
1 stop7h 28mDelta
Wed 2/1911:50 amSTL - BGR
2 stops10h 28mDelta
Deal found 1/13$279
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Tue 2/118:45 amBOS - STL
1 stop8h 35mAmerican Airlines
Tue 2/182:21 pmSTL - BOS
Nonstop2h 37mAmerican Airlines
Deal found 1/14$287
This Delta deal was found by Cheapflights users on 1/13. 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.
Wed 2/54:46 pmPWM - STL
1 stop6h 03mDelta
Wed 2/124:40 pmSTL - PWM
1 stop6h 15mDelta
Deal found 1/13$317
This Southwest deal was found by Cheapflights users on 1/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/256:05 pmBOS - STL
Nonstop3h 10mSouthwest
Wed 3/267:15 pmSTL - BOS
Nonstop2h 30mSouthwest
Deal found 1/13$337
This American Airlines deal was found by Cheapflights users on 1/13. 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.
Mon 3/35:15 pmPWM - STL
1 stop6h 29mAmerican Airlines
Tue 3/46:00 amSTL - PWM
1 stop5h 24mAmerican Airlines
Deal found 1/13$352
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/188:00 amBOS - STL
1 stop5h 28mDelta
Tue 2/185:50 pmSTL - BOS
1 stop4h 47mDelta
Deal found 1/14$371

Find flights from Maine to St. Louis within your budget

Customize your flight search to find flights from Maine to St. Louis 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 January 14, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Fri 1/31

9:02 pm-11:31 pm

1 stop27h 29m

Lambert-St Louis

Sun 2/2

8:22 am-6:16 pm

1 stop8h 54m

$138

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Sun 2/2

6:00 am-11:31 pm

1 stop18h 31m

Lambert-St Louis

Tue 2/4

5:05 pm-12:27 am

1 stop6h 22m

$148

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Thu 2/6

6:00 am-2:43 pm

1 stop9h 43m

Lambert-St Louis

Tue 2/11

3:48 pm-4:12 pm

2 stops23h 24m

$175

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 1/29

6:00 am-11:31 pm

1 stop18h 31m

Lambert-St Louis

Thu 1/30

4:28 pm-10:36 am

1 stop17h 08m

$202

BangorSt. Louis

BGR - STL

BGRSTL

Bangor

Wed 2/5

5:08 am-10:24 am

1 stop6h 16m

Lambert-St Louis

Tue 2/11

6:00 am-12:05 pm

1 stop5h 05m

$259

BangorSt. Louis

BGR - STL

BGRSTL

Bangor

Wed 2/5

9:00 am-4:25 pm

1 stop8h 25m

Lambert-St Louis

Tue 2/11

8:00 am-8:38 pm

2 stops11h 38m

$264

BangorSt. Louis

BGR - STL

BGRSTL

Bangor

Thu 2/13

6:00 am-12:28 pm

1 stop7h 28m

Lambert-St Louis

Wed 2/19

11:50 am-11:18 pm

2 stops10h 28m

$279

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 2/11

8:45 am-4:20 pm

1 stop8h 35m

Lambert-St Louis

Tue 2/18

2:21 pm-5:58 pm

Nonstop2h 37m

$287

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Wed 2/5

4:46 pm-9:49 pm

1 stop6h 03m

Lambert-St Louis

Wed 2/12

4:40 pm-11:55 pm

1 stop6h 15m

$317

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 3/25

6:05 pm-8:15 pm

Nonstop3h 10m

Lambert-St Louis

Wed 3/26

7:15 pm-10:45 pm

Nonstop2h 30m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 30 results
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Best time to book a flight from Maine to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Maine 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 Maine to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Maine to St. Louis (average of $311). Flying from Maine to St. Louis in March is currently the most expensive (average of $356). 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 ME to STL?

Find hourly flight availability from Maine to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 14, 2025.

When flying from Maine to St. Louis, 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 St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 14, 2025.
See what other customers who have flown with Frontier, Spirit Airlines and American Airlines from Maine to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,672 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,508 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,961 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Maine to St. Louis. 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 into for flights to St. Louis from Maine?

    If you book a flight to St. Louis from Maine, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    One-way options have recently been found by users for as low as $45 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $61 and United Airlines from $159 one-way.

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

    Most travelers choose Boston Logan Intl - Lambert-St Louis, Portland - Lambert-St Louis or Bangor - Lambert-St Louis when deciding on the best route from Maine to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maine to St. Louis 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 Maine to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Maine to St. Louis (average of $311). Flying from Maine to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Maine?

Book flights to Maine if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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Alternative routes for Maine to St. Louis

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

Discover the top 4 airlines that operate flights from Maine to St. Louis. 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 January 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$241Average$426FlexibilityNo cancel feeOn-time71%
DeltaCheapest$273Average$456FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$351Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$366Average$582FlexibilityNo cancel feeOn-time69%
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