What airlines fly to St. Louis?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to St. Louis from Massachusetts according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 6 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Massachusetts to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Massachusetts to Lambert-St Louis

How long does it take to fly to St. Louis?

Flight times from Massachusetts to St. Louis vary, but if you’re flying out of Boston and flying into St. Louis (one of the most popular routes), then the duration is 2h 55m on average. Another popular route from Massachusetts to St. Louis is flying from West Tisbury to St. Louis, which will take roughly 17h 36m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Massachusetts to St. Louis on average per week?

The number of flights available between Massachusetts and St. Louis is 46 per week as of October 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.

How many flights depart from Massachusetts to St. Louis on average per day?

The number of flights available between Massachusetts and St. Louis is 6 per day as of October 2025. The most frequent departure time is 7:00AM, with 49% of daily flights leaving at noon.

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

Prices for flights from Massachusetts to Lambert-St Louis Airport are refreshed on a daily basis.

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

As of October 2025, there are 6 operators available to choose from for flights from Massachusetts to Lambert-St Louis Airport.

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

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 Massachusetts to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$74 Cheap Flights from Massachusetts to St. Louis in 2025/26

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1:36 pm - 3:38 pmBDL-STL

27h 02m1 stop

2:12 pm - 12:41 pmSTL-BDL

21h 29m1 stop

$225Frontier

Find Deal

sex, out 31 - qui, nov 6

5:00 pm - 10:04 pmBDL-STL

6h 04m1 stop

6:00 am - 2:00 pmSTL-BDL

7h 00m1 stop

$237Delta

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sáb, nov 8 - qua, nov 12

7:10 pm - 6:10 pmBDL-STL

24h 00m1 stop

10:25 am - 10:38 pmSTL-BDL

11h 13m2 stops

$239Multiple Airlines

Find Deal

sex, out 31 - seg, nov 3

2:00 pm - 7:35 pmBDL-STL

6h 35m2 stops

1:50 pm - 9:25 pmSTL-BDL

6h 35m1 stop

$242Southwest

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seg, nov 10 - ter, nov 11

6:00 am - 1:50 pmBDL-STL

8h 50m2 stops

9:40 am - 4:15 pmSTL-BDL

5h 35m1 stop

$252Southwest

Find Deal

qua, out 29 - qua, nov 5

7:10 pm - 6:10 pmBDL-STL

24h 00m1 stop

7:45 pm - 2:49 pmSTL-BDL

18h 04m2 stops

$267Multiple Airlines

Find Deal

sex, out 31 - ter, nov 4

7:10 am - 4:09 pmBDL-STL

9h 59m1 stop

5:40 pm - 11:55 pmSTL-BDL

5h 15m1 stop

$275American Airlines

Find Deal

sex, out 31 - ter, nov 4

6:50 am - 9:04 amBOS-STL

3h 14mnonstop

6:00 am - 3:03 pmSTL-BOS

8h 03m1 stop

$306American Airlines

Find Deal

ter, out 28 - ter, nov 4

6:16 am - 5:57 pmBOS-STL

12h 41m1 stop

6:21 pm - 3:00 pmSTL-BOS

19h 39m3 stops

$312Spirit Airlines

Find Deal

qui, nov 13 - dom, nov 16

2:15 pm - 10:02 amBOS-STL

20h 47m2 stops

10:57 am - 1:20 pmSTL-BOS

25h 23m3 stops

$342Spirit Airlines

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sáb, out 25 - qui, out 30

Delta flights from Massachusetts to St. Louis

Our best Delta deals on Massachusetts to St. Louis flight tickets

Delta

Nov 8

BDL5:00 pmHartford Bradley Intl

6h 04m

1 stop

STL10:04 pmLambert-St Louis

Nov 12

STL6:00 amLambert-St Louis

7h 00m

1 stop

BDL2:00 pmHartford Bradley Intl

$237

Find similar

Delta

Oct 29

BDL6:00 amHartford Bradley Intl

5h 26m

1 stop

STL10:26 amLambert-St Louis

Nov 5

STL1:30 pmLambert-St Louis

7h 39m

1 stop

BDL10:09 pmHartford Bradley Intl

$247

Find similar

Delta

Oct 31

BDL5:30 amHartford Bradley Intl

5h 07m

1 stop

STL9:37 amLambert-St Louis

Nov 4

STL1:30 pmLambert-St Louis

7h 39m

1 stop

BDL10:09 pmHartford Bradley Intl

$254

Find similar

American Airlines flights from Massachusetts to St. Louis

Our best American Airlines deals on Massachusetts to St. Louis flight tickets

American Airlines

Oct 31

BDL7:10 amHartford Bradley Intl

9h 59m

1 stop

STL4:09 pmLambert-St Louis

Nov 4

STL5:40 pmLambert-St Louis

5h 15m

1 stop

BDL11:55 pmHartford Bradley Intl

$275

Find similar

American Airlines

Oct 28

BOS6:50 amBoston Logan Intl

3h 14m

STL9:04 amLambert-St Louis

Nov 4

STL6:00 amLambert-St Louis

8h 03m

1 stop

BOS3:03 pmBoston Logan Intl

$306

Find similar

American Airlines

Nov 1

BOS6:50 amBoston Logan Intl

3h 14m

STL9:04 amLambert-St Louis

Nov 4

STL6:00 amLambert-St Louis

8h 03m

1 stop

BOS3:03 pmBoston Logan Intl

$307

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

sex 10/31

1:36 pm-3:38 pm

1 stop27h 02m

Lambert-St Louis

qui 11/6

2:12 pm-12:41 pm

1 stop21h 29m

$225

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

sáb 11/8

5:00 pm-10:04 pm

1 stop6h 04m

Lambert-St Louis

qua 11/12

6:00 am-2:00 pm

1 stop7h 00m

$237

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

sex 10/31

7:10 pm-6:10 pm

1 stop24h 00m

Lambert-St Louis

seg 11/3

10:25 am-10:38 pm

2 stops11h 13m

$239

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

seg 11/10

2:00 pm-7:35 pm

2 stops6h 35m

Lambert-St Louis

ter 11/11

1:50 pm-9:25 pm

1 stop6h 35m

$242

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

qua 10/29

6:00 am-1:50 pm

2 stops8h 50m

Lambert-St Louis

qua 11/5

9:40 am-4:15 pm

1 stop5h 35m

$252

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

sex 10/31

7:10 pm-6:10 pm

1 stop24h 00m

Lambert-St Louis

ter 11/4

7:45 pm-2:49 pm

2 stops18h 04m

$267

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

sex 10/31

7:10 am-4:09 pm

1 stop9h 59m

Lambert-St Louis

ter 11/4

5:40 pm-11:55 pm

1 stop5h 15m

$275

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

ter 10/28

6:50 am-9:04 am

Nonstop3h 14m

Lambert-St Louis

ter 11/4

6:00 am-3:03 pm

1 stop8h 03m

$306

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

qui 11/13

6:16 am-5:57 pm

1 stop12h 41m

Lambert-St Louis

dom 11/16

6:21 pm-3:00 pm

3 stops19h 39m

$312

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

sáb 10/25

2:15 pm-10:02 am

2 stops20h 47m

Lambert-St Louis

qui 10/30

10:57 am-1:20 pm

3 stops25h 23m

$342

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

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

Prices

Airlines

Other information

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Massachusetts to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $382. The month of September is another great option to travel to St. Louis, with average flight prices from Massachusetts averaging around $393.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $426. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $500. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Massachusetts in the evening is the least expensive time of day to depart. momondo users have found prices as low as $434 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $456 per ticket.

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

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

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $443 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Massachusetts for as low as $389 on momondo.

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

There are 3 cabin classes available to choose from on Massachusetts to Lambert-St Louis 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 Massachusetts to St. Louis flights?

You could potentially save up to 2% on your flight if you consider stops on a Massachusetts to St. Louis flight.

Cheap Massachusetts to St. Louis flight deals and tips

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

Best Price Found	$210
Fastest flight time	3h 00m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Massachusetts in the past 72 hours is $210. The best round-trip flight deal from Massachusetts to St. Louis found on momondo in the last 72 hours is $373.

The fastest flight from Massachusetts to St. Louis takes 3h 00m

Direct flights go from Massachusetts to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Massachusetts to Lambert-St Louis Airport?
Prices for flights from Massachusetts to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Massachusetts to Lambert-St Louis Airport?
As of October 2025, there are 6 operators available to choose from for flights from Massachusetts to Lambert-St Louis Airport.
How old do you have to be to fly from Massachusetts to Lambert-St Louis Airport?
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 Massachusetts to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Massachusetts to St. Louis?
Based on momondo bookings for flights between Massachusetts and St. Louis, the leading plane model is Embraer 175, making up 24.87% of the total bookings. Other popular models include Boeing 737 MAX 8 with 22.44%, Boeing 737-800 Passenger/BBJ2 (winglets) with 16.15%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 8.64%.

Best airlines flying from Massachusetts to St. Louis

Compare and see reviews for airlines that fly from Massachusetts to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $83	Free Cancellation	Rating 6.3 8,082 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $113	Free Cancellation	Rating 5.8 3,145 reviews	Search Frontier flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 7,969 reviews	Search Delta flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 8,965 reviews	Search United Airlines flights
American Airlines	PriceFrom $297	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines flights
Southwest	PriceFrom $320	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights

St. Charles

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Hermann

Fairview Heights

Maryland Heights

Florissant

O'Fallon

Collinsville

Fenton

Wentzville

St. Peters

Alton

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Massachusetts to St. Louis for you.

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

Yes. momondo allows you to filter the results for Massachusetts to St. Louis flights to just show those with flexible booking policies.

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

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 St. Louis from Massachusetts.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Massachusetts and alert you when they change.

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Cheap flights from Massachusetts to St. Louis from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to St. Louis departing on 12/4. 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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Delta flights from Massachusetts to St. Louis

Our best Delta deals on Massachusetts to St. Louis flight tickets

American Airlines flights from Massachusetts to St. Louis

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

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 St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

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

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

How far in advance should I book a flight to St. Louis?

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

There are 3 cabin classes available to choose from on Massachusetts to Lambert-St Louis 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 Massachusetts to St. Louis flights?

You could potentially save up to 2% on your flight if you consider stops on a Massachusetts to St. Louis flight.

What is the cheapest airline that flies from Massachusetts to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Massachusetts to Lambert-St Louis

What airlines fly to St. Louis?

How many flights depart from Massachusetts to St. Louis on average per day?

The number of flights available between Massachusetts and St. Louis is 6 per day as of October 2025. The most frequent departure time is 7:00AM, with 49% of daily flights leaving at noon.

How many flights depart from Massachusetts to St. Louis on average per week?

The number of flights available between Massachusetts and St. Louis is 46 per week as of October 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.

How long does it take to fly to St. Louis?

Cheap Massachusetts to St. Louis flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

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

What documentation or ID do you need to fly to Lambert-St Louis Airport?

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

Best airlines flying from Massachusetts to St. Louis

Compare and see reviews for airlines that fly from Massachusetts to St. Louis with momondo

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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