Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Massachusetts from $90

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 10/18. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Massachusetts

Cheap round-trip flights

Logo
10:35 am - 10:35 amSTL-BDL
23h 00m1 stop
Logo
8:37 pm - 1:02 pmBDL-STL
17h 25m1 stop
$212
Find Deal
Thu, Sep 25 - Sun, Sep 28
American Airlines Logo
6:00 am - 1:00 pmSTL-BDL
6h 00m1 stop
American Airlines Logo
6:00 am - 9:56 amBDL-STL
4h 56m1 stop
$217American Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 15
Delta Logo
1:30 pm - 8:44 pmSTL-BDL
6h 14m1 stop
Delta Logo
5:30 am - 9:37 amBDL-STL
5h 07m1 stop
$237Delta
Find Deal
Sat, Oct 11 - Thu, Oct 16
Spirit Airlines Logo
10:35 am - 11:13 amSTL-BOS
23h 38m1 stop
Spirit Airlines Logo
6:10 am - 9:40 amBOS-STL
28h 30m1 stop
$239Spirit Airlines
Find Deal
Sun, Sep 21 - Wed, Sep 24
Frontier Logo
1:41 pm - 8:33 amSTL-BOS
17h 52m1 stop
Frontier Logo
8:12 am - 9:07 amBOS-STL
25h 55m2 stops
$240Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Spirit Airlines Logo
12:20 pm - 10:24 amSTL-BOS
21h 04m1 stop
Spirit Airlines Logo
6:57 pm - 11:01 amBOS-STL
17h 04m2 stops
$242Spirit Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6
Frontier Logo
2:12 pm - 8:28 amSTL-BOS
17h 16m1 stop
Frontier Logo
8:40 am - 9:07 amBOS-STL
25h 27m2 stops
$248Frontier
Find Deal
Fri, Oct 31 - Mon, Nov 3
Delta Logo
5:15 pm - 11:29 pmSTL-BDL
5h 14m1 stop
Delta Logo
7:10 pm - 11:41 pmBDL-STL
5h 31m1 stop
$254Delta
Find Deal
Fri, Oct 24 - Mon, Oct 27
Southwest Logo
1:30 pm - 11:50 pmSTL-BDL
9h 20m1 stop
Southwest Logo
7:45 am - 1:50 pmBDL-STL
7h 05m2 stops
$276Southwest
Find Deal
Tue, Oct 14 - Wed, Oct 15
Southwest Logo
7:00 am - 3:10 pmSTL-BDL
7h 10m1 stop
Southwest Logo
7:45 am - 1:50 pmBDL-STL
7h 05m2 stops
$299Southwest
Find Deal
Sat, Oct 11 - Wed, Oct 15

Spirit Airlines flights from St. Louis to Massachusetts

Our best Spirit Airlines deals on St. Louis to Massachusetts flight tickets
Spirit Airlines
Sep 21
STL10:35 amLambert-St Louis
23h 38m
1 stop
BOS11:13 amBoston Logan Intl
Sep 24
BOS6:10 amBoston Logan Intl
28h 30m
1 stop
STL9:40 amLambert-St Louis
$239
Find similar
Spirit Airlines
Dec 4
STL12:20 pmLambert-St Louis
21h 04m
1 stop
BOS10:24 amBoston Logan Intl
Dec 6
BOS6:57 pmBoston Logan Intl
17h 04m
2 stops
STL11:01 amLambert-St Louis
$242
Find similar
Spirit Airlines
Oct 19
STL10:57 amLambert-St Louis
21h 03m
2 stops
BOS9:00 amBoston Logan Intl
Oct 22
BOS2:15 pmBoston Logan Intl
20h 47m
2 stops
STL10:02 amLambert-St Louis
$333
Find similar

Frontier flights from St. Louis to Massachusetts

Our best Frontier deals on St. Louis to Massachusetts flight tickets
Frontier
Oct 23
STL1:41 pmLambert-St Louis
17h 52m
1 stop
BOS8:33 amBoston Logan Intl
Oct 27
BOS8:12 amBoston Logan Intl
25h 55m
2 stops
STL9:07 amLambert-St Louis
$240
Find similar
Frontier
Oct 31
STL2:12 pmLambert-St Louis
17h 16m
1 stop
BOS8:28 amBoston Logan Intl
Nov 3
BOS8:40 amBoston Logan Intl
25h 27m
2 stops
STL9:07 amLambert-St Louis
$248
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 September 8, 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. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Thu 9/25

10:35 am-10:35 am

1 stop23h 00m

Hartford Bradley Intl

Sun 9/28

8:37 pm-1:02 pm

1 stop17h 25m

$212

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Tue 10/14

6:00 am-1:00 pm

1 stop6h 00m

Hartford Bradley Intl

Wed 10/15

6:00 am-9:56 am

1 stop4h 56m

$217

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Sat 10/11

1:30 pm-8:44 pm

1 stop6h 14m

Hartford Bradley Intl

Thu 10/16

5:30 am-9:37 am

1 stop5h 07m

$237

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sun 9/21

10:35 am-11:13 am

1 stop23h 38m

Boston Logan Intl

Wed 9/24

6:10 am-9:40 am

1 stop28h 30m

$239

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 10/23

1:41 pm-8:33 am

1 stop17h 52m

Boston Logan Intl

Mon 10/27

8:12 am-9:07 am

2 stops25h 55m

$240

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 12/4

12:20 pm-10:24 am

1 stop21h 04m

Boston Logan Intl

Sat 12/6

6:57 pm-11:01 am

2 stops17h 04m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 10/31

2:12 pm-8:28 am

1 stop17h 16m

Boston Logan Intl

Mon 11/3

8:40 am-9:07 am

2 stops25h 27m

$248

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Fri 10/24

5:15 pm-11:29 pm

1 stop5h 14m

Hartford Bradley Intl

Mon 10/27

7:10 pm-11:41 pm

1 stop5h 31m

$254

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Tue 10/14

1:30 pm-11:50 pm

1 stop9h 20m

Hartford Bradley Intl

Wed 10/15

7:45 am-1:50 pm

2 stops7h 05m

$276

St. LouisHartford

STL - BDL

STLBDL

Lambert-St Louis

Sat 10/11

7:00 am-3:10 pm

1 stop7h 10m

Hartford Bradley Intl

Wed 10/15

7:45 am-1:50 pm

2 stops7h 05m

$299

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $378. 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 $393.

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

According to our data, Thursday is the cheapest day to fly to Massachusetts from St. Louis. The lowest ticket price found for a Thursday departure recently was $531. 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, Saturday 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 $853.

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 afternoon. Our users have found flights to Massachusetts in the afternoon for as low as $431. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,056 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 $422 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 $359 on momondo.

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

There are 4 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?

No. A direct flight is the cheapest option for a flight between St. Louis to Massachusetts.

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

$207

Fastest flight time

2h 30m

Direct flights

Every day

Airports in Massachusetts

1 airport
The best one-way flight to Massachusetts from St. Louis in the past 72 hours is $207. The best round-trip flight deal from St. Louis to Massachusetts found on momondo in the last 72 hours is $392.
The fastest flight from St. Louis to Massachusetts takes 2h 30m
Direct flights go from St. Louis to Massachusetts every day.
There is 1 airport near Massachusetts: 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 $75Free CancellationRating
5.8
3,187 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $147Free CancellationRating
6.3
8,022 reviews
Search Spirit Airlines flights
DeltaPriceFrom $186Free CancellationRating
7.9
7,966 reviews
Search Delta flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,244 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/8
Wed 10/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Massachusetts

Popular cities in Massachusetts

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $48
Flights to Los Angelesfrom $50
Flights to Miamifrom $57
Flights to Chicagofrom $49
Flights to Orlandofrom $57
Flights to Las Vegasfrom $48
Flights to San Franciscofrom $57
Flights to Washington, D.C.from $54
Flights to Bostonfrom $54
Flights to Atlantafrom $50
Flights to Dallasfrom $69
Flights to Seattlefrom $97