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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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PWM
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from St. Louis to Maine

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Maine (USME). 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 21, 2025.

Round-trip from

$108
(Gotogate)

One-way from

$55
(Frontier)
From Lambert-St Louis to Maine
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One-way flight from Lambert-St Louis to Maine
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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 January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/45:05 pmSTL - BOS
1 stop6h 22mFrontier
Tue 2/116:00 amBOS - STL
1 stop18h 31mFrontier
Deal found 1/20$108
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/85:05 pmSTL - BOS
1 stop6h 22mMultiple Airlines
Thu 2/205:40 amBOS - STL
1 stop10h 02mMultiple Airlines
Deal found 1/20$157
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Sun 2/164:00 pmSTL - BOS
1 stop16h 13mSpirit Airlines
Wed 2/265:12 pmBOS - STL
2 stops22h 30mSpirit Airlines
Deal found 1/20$209
This Delta deal was found by Cheapflights users on 1/20. 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.
Sun 3/96:10 amSTL - BGR
1 stop4h 44mDelta
Sat 3/156:00 amBGR - STL
1 stop6h 56mDelta
Deal found 1/20$259
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/35:20 pmSTL - PWM
1 stop14h 58mFrontier
Thu 3/610:08 amPWM - STL
1 stop14h 41mFrontier
Deal found 1/20$270
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 9/47:34 amSTL - BGR
1 stop6h 58mAmerican Airlines
Fri 9/125:56 pmBGR - STL
1 stop6h 29mAmerican Airlines
Deal found 1/20$299
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/267:05 amSTL - BOS
1 stop7h 04mUnited Airlines
Thu 3/66:00 amBOS - STL
2 stops10h 31mUnited Airlines
Deal found 1/20$302
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/132:21 pmSTL - BOS
Nonstop2h 37mAmerican Airlines
Tue 2/186:00 amBOS - STL
1 stop8h 56mAmerican Airlines
Deal found 1/20$313
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/186:00 amSTL - PWM
1 stop5h 25mAmerican Airlines
Tue 3/185:20 pmPWM - STL
1 stop6h 02mAmerican Airlines
Deal found 1/20$317
This Southwest deal was found by Cheapflights users on 1/20. 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.
Wed 2/126:50 amSTL - BOS
1 stop4h 45mSouthwest
Tue 2/255:45 amBOS - STL
2 stops9h 00mSouthwest
Deal found 1/20$368
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 3/45:50 pmSTL - BOS
1 stop4h 47mDelta
Tue 3/115:30 amBOS - STL
1 stop5h 06mDelta
Deal found 1/20$370
This Delta deal was found by Cheapflights users on 1/20. 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.
Sun 3/96:50 amSTL - PWM
1 stop4h 26mDelta
Sun 3/167:00 amPWM - STL
1 stop7h 08mDelta
Deal found 1/20$387

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 2/4

5:05 pm-12:27 am

1 stop6h 22m

Boston Logan Intl

Tue 2/11

6:00 am-11:31 pm

1 stop18h 31m

$108

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 2/8

5:05 pm-12:27 am

1 stop6h 22m

Boston Logan Intl

Thu 2/20

5:40 am-2:42 pm

1 stop10h 02m

$157

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sun 2/16

4:00 pm-9:13 am

1 stop16h 13m

Boston Logan Intl

Wed 2/26

5:12 pm-2:42 pm

2 stops22h 30m

$209

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Sun 3/9

6:10 am-11:54 am

1 stop4h 44m

Bangor

Sat 3/15

6:00 am-11:56 am

1 stop6h 56m

$259

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Mon 3/3

5:20 pm-9:18 am

1 stop14h 58m

Portland

Thu 3/6

10:08 am-11:49 pm

1 stop14h 41m

$270

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 2/26

7:05 am-3:09 pm

1 stop7h 04m

Boston Logan Intl

Thu 3/6

6:00 am-3:31 pm

2 stops10h 31m

$302

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 2/13

2:21 pm-5:58 pm

Nonstop2h 37m

Boston Logan Intl

Tue 2/18

6:00 am-1:56 pm

1 stop8h 56m

$313

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 3/18

6:00 am-12:25 pm

1 stop5h 25m

Portland

Tue 3/18

5:20 pm-10:22 pm

1 stop6h 02m

$317

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 2/12

6:50 am-12:35 pm

1 stop4h 45m

Boston Logan Intl

Tue 2/25

5:45 am-1:45 pm

2 stops9h 00m

$368

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 3/4

5:50 pm-11:37 pm

1 stop4h 47m

Boston Logan Intl

Tue 3/11

5:30 am-9:36 am

1 stop5h 06m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 31 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 January 21, 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 January 21, 2025.
Peruse reviews from past customers who have flown with Frontier, United Airlines and Southwest 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
4,659 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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
8,984 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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.

Spirit Airlines
6.3
Okay
8,113 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Comfort

8.1

Boarding

8.2

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 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 United 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 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.

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$153Average$285FlexibilityNo cancel feeOn-time62%
DeltaCheapest$258Average$360FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$442FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$386FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$377Average$522FlexibilityNo cancel feeOn-time69%
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