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Massachusetts

$80+ Cheap flights from St. Louis (STL) to Massachusetts

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from St. Louis to Massachusetts

Cheapest flights from St. Louis to Massachusetts
Explore the most affordable flight options available from St. Louis to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Expedia deal was found by Cheapflights users on 3/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 pm
STL
-
BOS
1 stop5h 57m
Frontier
Sun 4/125:30 am
BOS
-
STL
1 stop6h 08m
Frontier
Deal found 3/17$200
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/48:41 am
STL
-
BDL
1 stop11h 20m
Frontier
Wed 4/811:56 am
BDL
-
STL
1 stop12h 29m
Frontier
Deal found 3/20$216
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Wed 4/298:23 pm
STL
-
BDL
1 stop17h 26m
Frontier
Tue 5/56:00 am
BDL
-
STL
2 stops27h 55m
Frontier
Deal found 3/18$220
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Tue 6/96:00 am
BOS
-
STL
1 stop8h 22m
Frontier
Deal found 3/17$242
This Priceline deal was found by Cheapflights users on 3/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Thu 5/149:18 am
BOS
-
STL
1 stop8h 36m
Frontier
Deal found 3/17$245
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/298:23 pm
STL
-
BOS
1 stop28h 08m
Multiple Airlines
Wed 5/66:30 am
BOS
-
STL
2 stops35h 24m
Multiple Airlines
Deal found 3/17$265
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Tue 5/266:00 am
BOS
-
STL
1 stop12h 33m
Frontier
Deal found 3/17$266
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:23 pm
STL
-
BDL
2 stops20h 48m
Multiple Airlines
Fri 5/15:18 pm
BDL
-
STL
1 stop14h 32m
Multiple Airlines
Deal found 3/20$268
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Wed 4/158:23 pm
STL
-
BDL
1 stop17h 26m
Frontier
Mon 4/208:50 pm
BDL
-
STL
2 stops35h 00m
Frontier
Deal found 3/19$270
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Tue 4/711:21 am
STL
-
BOS
2 stops25h 34m
Multiple Airlines
Thu 4/95:30 am
BOS
-
STL
1 stop13h 04m
Multiple Airlines
Deal found 3/17$277
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:23 pm
STL
-
BOS
1 stop11h 53m
Frontier
Mon 5/411:16 am
BOS
-
STL
1 stop13h 03m
Frontier
Deal found 3/17$290
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Fri 4/178:23 pm
STL
-
BOS
1 stop14h 24m
Multiple Airlines
Tue 4/2111:20 am
BOS
-
STL
2 stops20h 30m
Multiple Airlines
Deal found 3/18$291

Find flight deals from St. Louis to Massachusetts

Keep the following information in mind while searching for St. Louis to Massachusetts flight deals. Data was last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Expedia)

One-way from

$80
(Priceline)

Popular in

February

Cheapest in

September

Average price

$472

Good round-trip deal

$431 or less

Good one-way deal

$260 or less
Provider with most accurate pricing for Lambert-St Louis-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Boston Logan Intl flights.
Search Deals
From Lambert-St Louis to Massachusetts
Search Deals
One-way flight from Lambert-St Louis to Massachusetts
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Massachusetts.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Massachusetts.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Massachusetts 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 March 22, 2026.
Use the filters below to find and compare flights from St. Louis to Massachusetts that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Tue 5/5

10:25 am-7:00 pm

2 stops7h 35m

Hartford Bradley Intl

Tue 5/12

12:25 pm-5:55 pm

1 stop6h 30m

$340

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 5/16

5:35 pm-11:40 pm

1 stop5h 05m

Boston Logan Intl

Tue 5/26

2:25 pm-10:00 pm

2 stops8h 35m

$360

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Tue 4/28

7:45 am-3:12 pm

1 stop6h 27m

Albany Intl

Wed 4/29

4:55 pm-9:13 pm

1 stop5h 18m

$367

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Mon 6/8

5:20 pm-11:45 pm

1 stop5h 25m

Albany Intl

Mon 6/15

5:55 pm-11:10 pm

1 stop6h 15m

$371

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Tue 6/2

2:30 pm-10:05 pm

2 stops6h 35m

Hartford Bradley Intl

Sun 6/7

5:35 am-11:05 am

1 stop6h 30m

$376

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Mon 4/27

5:59 pm-11:15 pm

1 stop4h 16m

Hartford Bradley Intl

Fri 5/1

6:00 am-11:32 am

1 stop6h 32m

$379

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Thu 4/16

5:40 am-10:40 am

1 stop4h 00m

Hartford Bradley Intl

Sun 4/19

7:15 pm-11:15 pm

1 stop5h 00m

$379

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Tue 5/12

2:30 pm-10:05 pm

2 stops6h 35m

Hartford Bradley Intl

Wed 8/19

12:45 pm-5:50 pm

2 stops6h 05m

$381

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Sun 5/3

7:45 am-3:04 pm

1 stop6h 19m

Albany Intl

Mon 5/4

4:55 pm-9:13 pm

1 stop5h 18m

$407

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Thu 8/20

6:00 am-1:19 pm

1 stop6h 19m

Albany Intl

Sun 8/23

5:30 am-11:54 am

1 stop7h 24m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from St. Louis to Massachusetts

Have a flexible travel schedule? Discover the best time to fly to Massachusetts 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 Massachusetts

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Massachusetts (average of $195). Flying from St. Louis to Massachusetts in February is currently the most expensive (average of $377). 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 MA?

Find hourly flight availability from St. Louis to Massachusetts. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 22, 2026.

It’s optimal to fly from St. Louis to Massachusetts in the evening. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from St. Louis to Massachusetts?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Massachusetts. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their St. Louis to Massachusetts flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Massachusetts

Explore weekly flight availability from St. Louis to Massachusetts. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 22, 2026.

The most flights from STL to USMA are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Massachusetts

Get insights into the airlines that provide service to Massachusetts. 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 Massachusetts. Reviews last updated March 22, 2026.
Read through reviews of airlines operating flights from St. Louis to Massachusetts, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,314 reviews
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,455 reviews
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,487 reviews
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,531 reviews
Southwest
8.0
Very good
4,324 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Massachusetts. 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 Massachusetts?

    If you book a flight to Massachusetts from St. Louis, you will be flying from 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.

  • How popular is this St. Louis to Massachusetts flight route?

    The Lambert-St Louis to Massachusetts flight path was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Departing from St. Louis to Massachusetts will take you 4h 16m. Airlines will cover a distance of 954 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from Frontier and Delta, as they are both options that can get you from St. Louis to Massachusetts for a low price.

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

    While some choose either Lambert-St Louis - Hartford Bradley Intl or Lambert-St Louis - Albany Intl, Lambert-St Louis - Boston Logan Intl is the most popular route from St. Louis to Massachusetts.

  • What are the most reliable airlines from St. Louis to Massachusetts?

    Before booking your flight to Massachusetts from St. Louis, check out the most reliable airlines to get you to your destination on time: British Airways (69%), Southwest (68%), Iberia( 68%).

  • What are the cheapest flights from St. Louis to Massachusetts?

    On average you can expect to pay $875 for a flight from St. Louis to Massachusetts. The cheapest flight overall is $170 while the most popular route, (Lambert-St Louis - Boston Logan Intl) is currently priced at $287.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Massachusetts (average of $195). Flying from St. Louis to Massachusetts in February is currently the most expensive (average of $377). 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 Massachusetts

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from St. Louis to Massachusetts

Discover the top 6 airlines that operate flights from St. Louis to Massachusetts. 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$73Average$249FlexibilityNo cancel feeOn-time65%
FrontierCheapest$75Average$260FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$292FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$254Average$456FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$272Average$500FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$304Average$465FlexibilityNo cancel feeOn-time63%

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