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Cheap flights from St. Louis to Massachusetts from $75

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Massachusetts departing on 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from St. Louis to Massachusetts

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:27 pm - 1:24 am
STL
-
BOS
6h 57m
1 stop
Frontier Logo
6:00 am - 4:54 pm
BOS
-
STL
11h 54m
1 stop
$160Frontier
Fri, May 8 - Sun, May 10
Frontier Logo
11:21 am - 4:21 pm
STL
-
BDL
28h 00m
1 stop
Frontier Logo
2:58 pm - 6:50 am
BDL
-
STL
16h 52m
1 stop
$166Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
11:21 am - 4:21 pm
STL
-
BDL
28h 00m
1 stop
Frontier Logo
2:58 pm - 6:50 am
BDL
-
STL
16h 52m
1 stop
$173Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
5:27 pm - 1:24 am
STL
-
BOS
6h 57m
1 stop
Frontier Logo
6:00 am - 4:54 pm
BOS
-
STL
11h 54m
1 stop
$180Frontier
Fri, May 15 - Sun, May 17
American Airlines Logo
4:30 pm - 11:59 pm
STL
-
ALB
6h 29m
1 stop
American Airlines Logo
5:30 pm - 10:07 pm
ALB
-
STL
5h 37m
1 stop
$297American Airlines
Sat, May 2 - Tue, May 12
Southwest Logo
10:25 am - 6:45 pm
STL
-
ALB
7h 20m
2 stops
Southwest Logo
7:20 am - 12:55 pm
ALB
-
STL
6h 35m
1 stop
$302Southwest
Tue, Apr 28 - Sat, May 2
Southwest Logo
10:25 am - 6:45 pm
STL
-
ALB
7h 20m
2 stops
Southwest Logo
12:35 pm - 8:00 pm
ALB
-
STL
8h 25m
2 stops
$307Southwest
Tue, Apr 28 - Sat, May 2
United Airlines Logo
6:30 am - 2:08 pm
STL
-
ALB
6h 38m
2 stops
United Airlines Logo
6:54 pm - 11:19 pm
ALB
-
STL
5h 25m
1 stop
$330United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
7:45 am - 3:12 pm
STL
-
ALB
6h 27m
1 stop
United Airlines Logo
6:00 am - 12:22 pm
ALB
-
STL
7h 22m
2 stops
$351United Airlines
Thu, Apr 23 - Sat, Apr 25
Delta Logo
7:25 am - 3:22 pm
STL
-
MVY
6h 57m
1 stop
Delta Logo
4:02 pm - 8:39 pm
MVY
-
STL
5h 37m
1 stop
$1,238Delta
Sat, May 23 - Wed, May 27

Frontier flights from St. Louis to Massachusetts

Our best Frontier deals on St. Louis to Massachusetts flight tickets
Frontier
May 8
STL5:27 pmLambert-St Louis
6h 57m
1 stop
BOS1:24 amBoston Logan Intl
May 10
BOS6:00 amBoston Logan Intl
11h 54m
1 stop
STL4:54 pmLambert-St Louis
$160
Frontier
Apr 30
STL11:21 amLambert-St Louis
28h 00m
1 stop
BDL4:21 pmHartford Bradley Intl
May 3
BDL2:58 pmHartford Bradley Intl
16h 52m
1 stop
STL6:50 amLambert-St Louis
$166
Frontier
Apr 30
STL11:21 amLambert-St Louis
28h 00m
1 stop
BDL4:21 pmHartford Bradley Intl
May 3
BDL2:58 pmHartford Bradley Intl
16h 52m
1 stop
STL6:50 amLambert-St Louis
$173

Southwest flights from St. Louis to Massachusetts

Our best Southwest deals on St. Louis to Massachusetts flight tickets
Southwest
Apr 28
STL10:25 amLambert-St Louis
7h 20m
2 stops
ALB6:45 pmAlbany Intl
May 2
ALB7:20 amAlbany Intl
6h 35m
1 stop
STL12:55 pmLambert-St Louis
$302
Southwest
Apr 28
STL10:25 amLambert-St Louis
7h 20m
2 stops
ALB6:45 pmAlbany Intl
May 2
ALB12:35 pmAlbany Intl
8h 25m
2 stops
STL8:00 pmLambert-St Louis
$307
Southwest
May 12
STL1:45 pmLambert-St Louis
6h 05m
1 stop
ALB8:50 pmAlbany Intl
May 14
ALB5:30 pmAlbany Intl
7h 10m
1 stop
STL11:40 pmLambert-St Louis
$316

momondo 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, momondo users made 832,500 searches. Data last updated April 3, 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. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 5/8

5:27 pm-1:24 am

1 stop6h 57m

Boston Logan Intl

Sun 5/10

6:00 am-4:54 pm

1 stop11h 54m

$160

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Thu 4/30

11:21 am-4:21 pm

1 stop28h 00m

Hartford Bradley Intl

Sun 5/3

2:58 pm-6:50 am

1 stop16h 52m

$166

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Thu 4/30

11:21 am-4:21 pm

1 stop28h 00m

Hartford Bradley Intl

Sun 5/3

2:58 pm-6:50 am

1 stop16h 52m

$173

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 5/15

5:27 pm-1:24 am

1 stop6h 57m

Boston Logan Intl

Sun 5/17

6:00 am-4:54 pm

1 stop11h 54m

$180

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Sat 5/2

4:30 pm-11:59 pm

1 stop6h 29m

Albany Intl

Tue 5/12

5:30 pm-10:07 pm

1 stop5h 37m

$297

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Tue 4/28

10:25 am-6:45 pm

2 stops7h 20m

Albany Intl

Sat 5/2

7:20 am-12:55 pm

1 stop6h 35m

$302

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Tue 4/28

10:25 am-6:45 pm

2 stops7h 20m

Albany Intl

Sat 5/2

12:35 pm-8:00 pm

2 stops8h 25m

$307
Quickest round-trip

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Tue 4/28

6:30 am-2:08 pm

2 stops6h 38m

Albany Intl

Sat 5/2

6:54 pm-11:19 pm

1 stop5h 25m

$330

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

Thu 4/23

7:45 am-3:12 pm

1 stop6h 27m

Albany Intl

Sat 4/25

6:00 am-12:22 pm

2 stops7h 22m

$351

St. LouisWest Tisbury

STL - MVY

STLMVY

Lambert-St Louis

Sat 5/23

7:25 am-3:22 pm

1 stop6h 57m

West Tisbury Martha's Vineyard

Wed 5/27

4:02 pm-8:39 pm

1 stop5h 37m

$1,238

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Massachusetts from

How to get the cheapest flight ticket from St. Louis to Massachusetts

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Massachusetts?

In general, September is the cheapest month to fly from St. Louis to Massachusetts. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $382. If you aren’t able to travel to Massachusetts during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $414.

What is the cheapest day to depart on your flight to Massachusetts?

According to our data, Wednesday is the cheapest day to fly to Massachusetts from St. Louis. The lowest ticket price found for a Wednesday departure recently was $478. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $707.

What is the cheapest time of day to depart on your flight to Massachusetts?

Our data shows that the cheapest St. Louis to Massachusetts flights are usually those with departure times in the evening. Our users have found flights to Massachusetts in the evening for as low as $441. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $968 on average. Flights to Massachusetts from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Lambert-St Louis to Massachusetts flight route?

Fly from Lambert-St Louis to Boston Logan Intl for the best Lambert-St Louis - Massachusetts flight prices

How far in advance should I book a flight to Massachusetts?

You are more likely to see cheaper flights to Massachusetts from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Massachusetts for around $463 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Massachusetts from St. Louis for as low as $353 on momondo.

What cabin class options are available on Lambert-St Louis to Massachusetts flights?

There are 3 cabin classes available to choose from on Lambert-St Louis to Massachusetts flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Massachusetts flights?

You could potentially save up to 11% on your flight if you consider stops on a St. Louis to Massachusetts flight.

Cheap St. Louis to Massachusetts flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Massachusetts

Best Price Found

$260

Fastest flight time

2h 30m

Direct flights

Every day

Airports in Massachusetts

140 airports
The best one-way flight to Massachusetts from St. Louis in the past 72 hours is $260. The best round-trip flight deal from St. Louis to Massachusetts found on momondo in the last 72 hours is $464.
The fastest flight from St. Louis to Massachusetts takes 2h 30m
Direct flights go from St. Louis to Massachusetts every day.
There are 140 airports in Massachusetts. From St. Louis there are direct flights to Boston Logan Intl (BOS).
Search flight deals

Frequently asked questions about flying from St. Louis to Massachusetts

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Massachusetts?

    Prices for flights from Lambert-St Louis Airport to Massachusetts refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Massachusetts?

  • How old do you have to be to fly from Lambert-St Louis Airport to Massachusetts?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Massachusetts.

  • What documentation or ID do you need to fly to Massachusetts?

    The travel and health documents you'll need for your trip to Massachusetts may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Massachusetts. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Massachusetts?

Best airlines flying from St. Louis to Massachusetts

Compare and see reviews for airlines that fly from St. Louis to Massachusetts with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $73Free CancellationRating
6.3
8,578 reviews
Search Spirit Airlines flights
FrontierPriceFrom $125Free CancellationRating
5.7
3,000 reviews
Search Frontier flights
DeltaPriceFrom $153Free CancellationRating
7.9
8,375 reviews
Search Delta flights
American AirlinesPriceFrom $272Free CancellationRating
7.1
11,552 reviews
Search American Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,539 reviews
Search United Airlines flights
SouthwestPriceFrom $304Free CancellationRating
8.0
4,344 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Massachusetts?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Massachusetts. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Massachusetts with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Massachusetts from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Massachusetts?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Massachusetts from St. Louis.

I’m not ready to book a flight from St. Louis to Massachusetts right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Massachusetts from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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