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Cheap flights from St. Louis to Massachusetts from $63

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 1/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
5:11 pm - 10:11 am
STL
-
BOS
16h 00m1 stop
Frontier Logo
6:00 am - 6:51 am
BOS
-
STL
25h 51m1 stop
$133Frontier
mer., janv. 7 - mar., janv. 13
Multiple Airlines Logo
5:11 pm - 10:11 am
STL
-
BOS
16h 00m1 stop
Multiple Airlines Logo
3:43 pm - 7:54 am
BOS
-
STL
17h 11m1 stop
$134Multiple Airlines
mer., janv. 7 - jeu., janv. 15
Frontier Logo
5:42 pm - 11:24 am
STL
-
BDL
16h 42m1 stop
Frontier Logo
12:19 pm - 10:27 pm
BDL
-
STL
11h 08m1 stop
$139Frontier
lun., févr. 9 - mer., févr. 18
United Airlines Logo
6:30 am - 2:31 pm
STL
-
ALB
7h 01m1 stop
United Airlines Logo
10:05 am - 2:30 pm
ALB
-
STL
5h 25m1 stop
$256United Airlines
mar., janv. 20 - mar., janv. 27
Southwest Logo
2:35 pm - 10:05 pm
STL
-
ALB
6h 30m1 stop
Southwest Logo
3:40 pm - 9:00 pm
ALB
-
STL
6h 20m2 stops
$261Southwest
mar., janv. 20 - mar., janv. 27
Delta Logo
6:25 am - 2:02 pm
STL
-
ALB
6h 37m1 stop
Delta Logo
5:30 am - 9:39 am
ALB
-
STL
5h 09m1 stop
$277Delta
jeu., janv. 15 - dim., janv. 18
Southwest Logo
2:15 pm - 10:05 pm
STL
-
ALB
6h 50m2 stops
Southwest Logo
1:00 pm - 7:00 pm
ALB
-
STL
7h 00m2 stops
$287Southwest
mar., janv. 20 - mar., janv. 27
Delta Logo
6:00 am - 1:33 pm
STL
-
BDL
6h 33m1 stop
Delta Logo
6:04 am - 10:43 am
BDL
-
STL
5h 39m1 stop
$290Delta
mer., janv. 14 - dim., janv. 18
American Airlines Logo
6:00 am - 4:30 pm
STL
-
ALB
9h 30m2 stops
American Airlines Logo
5:00 pm - 9:51 pm
ALB
-
STL
5h 51m1 stop
$349American Airlines
mar., janv. 20 - mar., janv. 27
United Airlines Logo
6:30 am - 2:31 pm
STL
-
ALB
7h 01m1 stop
United Airlines Logo
4:20 pm - 10:58 pm
ALB
-
STL
7h 38m1 stop
$372United Airlines
mer., janv. 7 - jeu., janv. 8

American Airlines flights from St. Louis to Massachusetts

Our best American Airlines deals on St. Louis to Massachusetts flight tickets
American Airlines
Dec 24
STL12:50 pmLambert-St Louis
2h 39m
BOS4:29 pmBoston Logan Intl
Jan 1
BOS12:03 pmBoston Logan Intl
3h 17m
STL2:20 pmLambert-St Louis
$297
Find similar
American Airlines
Dec 24
STL12:50 pmLambert-St Louis
2h 39m
BOS4:29 pmBoston Logan Intl
Jan 1
BOS5:30 pmBoston Logan Intl
7h 14m
1 stop
STL11:44 pmLambert-St Louis
$307
Find similar
American Airlines
Dec 25
STL11:43 amLambert-St Louis
2h 42m
BOS3:25 pmBoston Logan Intl
Jan 1
BOS12:03 pmBoston Logan Intl
3h 17m
STL2:20 pmLambert-St Louis
$320
Find similar

Frontier flights from St. Louis to Massachusetts

Our best Frontier deals on St. Louis to Massachusetts flight tickets
Frontier
Jan 7
STL5:11 pmLambert-St Louis
16h 00m
1 stop
BOS10:11 amBoston Logan Intl
Jan 13
BOS6:00 amBoston Logan Intl
25h 51m
1 stop
STL6:51 amLambert-St Louis
$133
Find similar
Frontier
Feb 9
STL5:42 pmLambert-St Louis
16h 42m
1 stop
BDL11:24 amHartford Bradley Intl
Feb 18
BDL12:19 pmHartford Bradley Intl
11h 08m
1 stop
STL10:27 pmLambert-St Louis
$139
Find similar
Frontier
Jan 7
STL5:11 pmLambert-St Louis
16h 00m
1 stop
BOS10:11 amBoston Logan Intl
Jan 9
BOS6:00 amBoston Logan Intl
9h 48m
1 stop
STL2:48 pmLambert-St Louis
$150
Find similar

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 décembre 17, 2025.
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

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

mer. 1/7

5:11 pm-10:11 am

1 stop16h 00m

Boston Logan Intl

mar. 1/13

6:00 am-6:51 am

1 stop25h 51m

$133

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

mer. 1/7

5:11 pm-10:11 am

1 stop16h 00m

Boston Logan Intl

jeu. 1/15

3:43 pm-7:54 am

1 stop17h 11m

$134

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

lun. 2/9

5:42 pm-11:24 am

1 stop16h 42m

Hartford Bradley Intl

mer. 2/18

12:19 pm-10:27 pm

1 stop11h 08m

$139

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

mar. 1/20

6:30 am-2:31 pm

1 stop7h 01m

Albany Intl

mar. 1/27

10:05 am-2:30 pm

1 stop5h 25m

$256

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

mar. 1/20

2:35 pm-10:05 pm

1 stop6h 30m

Albany Intl

mar. 1/27

3:40 pm-9:00 pm

2 stops6h 20m

$261

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

jeu. 1/15

6:25 am-2:02 pm

1 stop6h 37m

Albany Intl

dim. 1/18

5:30 am-9:39 am

1 stop5h 09m

$277

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

mar. 1/20

2:15 pm-10:05 pm

2 stops6h 50m

Albany Intl

mar. 1/27

1:00 pm-7:00 pm

2 stops7h 00m

$287

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

mer. 1/14

6:00 am-1:33 pm

1 stop6h 33m

Hartford Bradley Intl

dim. 1/18

6:04 am-10:43 am

1 stop5h 39m

$290

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

mar. 1/20

6:00 am-4:30 pm

2 stops9h 30m

Albany Intl

mar. 1/27

5:00 pm-9:51 pm

1 stop5h 51m

$349

St. LouisAlbany

STL - ALB

STLALB

Lambert-St Louis

mer. 1/7

6:30 am-2:31 pm

1 stop7h 01m

Albany Intl

jeu. 1/8

4:20 pm-10:58 pm

1 stop7h 38m

$372

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 $409.

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

According to our data, Friday is the cheapest day to fly to Massachusetts from St. Louis. The lowest ticket price found for a Friday departure recently was $546. 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, Monday 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 $766.

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 $426. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,036 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 $433 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 $354 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 44% 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

$315

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 $315. The best round-trip flight deal from St. Louis to Massachusetts found on momondo in the last 72 hours is $479.
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

  • 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
FrontierPriceFrom $100Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $124Free CancellationRating
6.3
8,188 reviews
Search Spirit Airlines flights
DeltaPriceFrom $158Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
SouthwestPriceFrom $303Free CancellationRating
7.9
4,250 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.

An easier way to manage your Massachusetts trip

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