How popular is this St. Louis to Boston flight route?

The Lambert-St Louis to Boston Logan Intl flight path was viewed by 4 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 Boston?

There are many flights that can get you from St. Louis to Boston in 8h 04m. Fly via American Airlines to get the fastest option. St. Louis and Boston are separated by a distance of 1043 mi.

What are the cheapest airlines flying from St. Louis to Boston round-trip?

According to our current data, Frontier ($75), Spirit Airlines ($147), and United Airlines ($153) offers the cheapest pricing from St. Louis to Boston. Users have found that Frontier is 82% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the cheapest flights from St. Louis to Boston?

While on average a flight from St. Louis to Boston is generally $1,226, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Lambert-St Louis - Boston Logan Intl), you can expect to pay $207 for that flight.

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

No one likes to see their flight delayed. When booking a flight from St. Louis to Boston consider choosing Qatar Airways (92%), Iberia (92%) or American Airlines (79%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from St. Louis to Boston?

The most popular airlines flying from St. Louis to Boston are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from St. Louis to Boston?

Friday flights are found to be more expensive to fly from St. Louis to Boston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boston.

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

To save on the cost of your flight from St. Louis to Boston, book at least 55 days before your planned departure. Booking around this time can save you about 125% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $387 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $487.

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

Our data shows that September tends to be the cheapest month to fly to Boston from St. Louis. Users have commonly found prices around $423 for the month, but tickets can be as low as $153. Due to multiple factors, prepare for potentially higher prices in June.

What airports do I use to fly from St. Louis to Boston?

Booking a flight from Lambert-St Louis (STL) to Boston Logan Intl (BOS) is your only option if you wish to fly from St. Louis to Boston. On a typical day, there are 5 flights from Lambert-St Louis to Logan Intl, all of which are around 2h 30m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Lambert-St Louis to Boston.

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

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

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

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

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

Yes. Cheapflights offers flight deals from St. Louis to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$130+ Cheap Flights from St. Louis to Boston

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to Boston Logan Intl are usually found in September or August, booked 84 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from St. Louis to Boston

Round-trip from	$242 (American Airlines)
One-way from	$130 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$386
Good round-trip deal	$361 or less
Good one-way deal	$196 or less

From Lambert-St Louis to Boston Logan Intl

Search Deals

One-way flight from Lambert-St Louis to Boston Logan Intl

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Price to beat on a round-trip flight from Lambert-St Louis to Boston Logan Intl.

Search Deals

Price to beat on a one-way flight from Lambert-St Louis to Boston Logan Intl.

Search Deals

Find flight deals from St. Louis to Boston

Cheapest flights from St. Louis to Boston
Explore the most affordable flight options available from St. Louis to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Tue 9/169:56 amSTL - BOS

1 stop7h 49mAmerican Airlines

Tue 9/234:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/19

$242

Tue 10/2810:57 amSTL - BOS

1 stop23h 29mMultiple Airlines

Thu 10/3012:20 pmBOS - STL

2 stops28h 14mMultiple Airlines

Deal found 8/19

$244

Thu 11/1311:07 amSTL - BOS

1 stop20h 53mFrontier

Sun 11/1610:04 amBOS - STL

2 stops24h 03mFrontier

Deal found 8/18

$245

Fri 10/1011:32 amSTL - BOS

2 stops35h 27mMultiple Airlines

Sat 10/186:11 amBOS - STL

1 stop12h 34mMultiple Airlines

Deal found 8/17

$248

Thu 10/1610:57 amSTL - BOS

1 stop12h 02mSpirit Airlines

Mon 10/206:11 amBOS - STL

1 stop28h 51mSpirit Airlines

Deal found 8/18

$249

Sun 10/1210:57 amSTL - BOS

1 stop12h 02mSpirit Airlines

Fri 10/178:24 pmBOS - STL

1 stop22h 21mSpirit Airlines

Deal found 8/18

$254

Sat 10/187:52 pmSTL - BOS

2 stops36h 03mMultiple Airlines

Sat 10/256:11 amBOS - STL

1 stop12h 34mMultiple Airlines

Deal found 8/19

$255

Thu 9/410:35 amSTL - BOS

1 stop23h 38mMultiple Airlines

Sun 9/710:13 amBOS - STL

2 stops29h 51mMultiple Airlines

Deal found 8/19

$256

Wed 9/176:10 amSTL - BOS

1 stop7h 56mAmerican Airlines

Thu 9/254:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/18

$257

Fri 9/51:57 pmSTL - BOS

1 stop22h 51mMultiple Airlines

Sun 9/72:53 pmBOS - STL

1 stop23h 09mMultiple Airlines

Deal found 8/18

$260

Sat 9/67:55 pmSTL - BOS

2 stops13h 03mMultiple Airlines

Sat 9/133:00 pmBOS - STL

1 stop19h 40mMultiple Airlines

Deal found 8/18

$261

Best flights from St. Louis to Boston
Discover carefully curated flight deals from St. Louis to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2025.

Wed 10/296:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Wed 11/58:50 amBOS - STL

Nonstop3h 23mAmerican Airlines

Deal found 8/19

$242

Thu 11/1311:07 amSTL - BOS

1 stop20h 53mFrontier

Sun 11/1610:04 amBOS - STL

2 stops24h 03mFrontier

Deal found 8/18

$245

Fri 10/1011:32 amSTL - BOS

2 stops35h 27mMultiple Airlines

Sat 10/186:11 amBOS - STL

1 stop12h 34mMultiple Airlines

Deal found 8/17

$248

Wed 10/227:00 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Sat 10/259:00 amBOS - STL

1 stop10h 11mAmerican Airlines

Deal found 8/19

$242

Tue 9/169:56 amSTL - BOS

1 stop7h 49mAmerican Airlines

Tue 9/234:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/19

$242

Wed 10/16:55 pmSTL - BOS

Nonstop2h 42mAmerican Airlines

Sat 10/412:52 pmBOS - STL

1 stop10h 05mAmerican Airlines

Deal found 8/19

$242

Wed 10/16:10 amSTL - BOS

1 stop7h 56mAmerican Airlines

Wed 10/84:15 pmBOS - STL

Nonstop3h 11mAmerican Airlines

Deal found 8/19

$242

Tue 10/289:35 amSTL - BOS

Nonstop2h 37mAmerican Airlines

Tue 11/47:00 amBOS - STL

1 stop9h 02mAmerican Airlines

Deal found 8/19

$242

Tue 10/286:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Wed 10/296:50 amBOS - STL

Nonstop3h 14mAmerican Airlines

Deal found 8/19

$242

Wed 10/296:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Tue 11/48:50 amBOS - STL

Nonstop3h 23mAmerican Airlines

Deal found 8/19

$242

Last-minute flights from St. Louis to Boston
Discover last-minute flight deals from St. Louis to Boston. Data last updated August 20, 2025 and is based on user searches.

Thu 9/410:35 amSTL - BOS

1 stop23h 38mMultiple Airlines

Sun 9/710:13 amBOS - STL

2 stops29h 51mMultiple Airlines

Deal found 8/19

$256

Fri 9/51:57 pmSTL - BOS

1 stop22h 51mMultiple Airlines

Sun 9/72:53 pmBOS - STL

1 stop23h 09mMultiple Airlines

Deal found 8/18

$260

Sat 9/67:55 pmSTL - BOS

2 stops13h 03mMultiple Airlines

Sat 9/133:00 pmBOS - STL

1 stop19h 40mMultiple Airlines

Deal found 8/18

$261

Sun 9/1410:35 amSTL - BOS

1 stop23h 38mMultiple Airlines

Tue 9/163:00 pmBOS - STL

2 stops43h 54mMultiple Airlines

Deal found 8/18

$269

Tue 9/169:56 amSTL - BOS

1 stop7h 49mAmerican Airlines

Tue 9/234:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/19

$242

Wed 9/176:10 amSTL - BOS

1 stop7h 56mAmerican Airlines

Thu 9/254:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/18

$257

Fri 9/191:57 pmSTL - BOS

2 stops16h 46mMultiple Airlines

Sat 10/43:00 pmBOS - STL

1 stop20h 02mMultiple Airlines

Deal found 8/18

$264

Sun 9/214:00 pmSTL - BOS

1 stop16h 58mMultiple Airlines

Fri 9/262:53 pmBOS - STL

2 stops43h 13mMultiple Airlines

Deal found 8/19

$265

Sun 9/214:00 pmSTL - BOS

1 stop16h 58mFrontier

Fri 9/2612:59 pmBOS - STL

2 stops21h 07mFrontier

Deal found 8/20

$268

Mon 9/226:00 amSTL - BOS

1 stop7h 49mAmerican Airlines

Mon 9/224:10 pmBOS - STL

Nonstop3h 05mAmerican Airlines

Deal found 8/18

$263

One-way flights from St. Louis to Boston
Search for one-way flight options from St. Louis to Boston. Find affordable one-way fares based on user searches. Data last updated August 20, 2025.

Thu 9/184:00 pmSTL - BOS

2 stops39h 11mMultiple Airlines

Deal found 8/18

$130

Thu 10/1610:57 amSTL - BOS

1 stop12h 02mSpirit Airlines

Deal found 8/18

$132

Sun 9/214:00 pmSTL - BOS

2 stops29h 47mMultiple Airlines

Deal found 8/19

$133

Thu 10/3011:07 amSTL - BOS

2 stops19h 45mFrontier

Deal found 8/19

$134

Fri 9/191:57 pmSTL - BOS

2 stops16h 46mFrontier

Deal found 8/18

$136

Sun 9/1410:35 amSTL - BOS

1 stop23h 38mSpirit Airlines

Deal found 8/18

$137

Wed 10/151:35 pmSTL - BOS

1 stop6h 52mDelta

Deal found 8/18

$139

Thu 11/67:45 pmSTL - BOS

2 stops35h 43mFrontier

Deal found 8/19

$140

Wed 9/247:55 pmSTL - BOS

2 stops13h 03mFrontier

Deal found 8/18

$141

Fri 9/51:57 pmSTL - BOS

1 stop22h 51mMultiple Airlines

Deal found 8/19

$142

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/29

6:00 am-3:04 pm

1 stop8h 04m

Boston Logan Intl

Wed 11/5

8:50 am-11:13 am

Nonstop3h 23m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/22

7:00 pm-10:37 pm

Nonstop2h 37m

Boston Logan Intl

Sat 10/25

9:00 am-6:11 pm

1 stop10h 11m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 9/16

9:56 am-6:45 pm

1 stop7h 49m

Boston Logan Intl

Tue 9/23

4:10 pm-6:15 pm

Nonstop3h 05m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/1

6:55 pm-10:37 pm

Nonstop2h 42m

Boston Logan Intl

Sat 10/4

12:52 pm-9:57 pm

1 stop10h 05m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/1

6:10 am-3:06 pm

1 stop7h 56m

Boston Logan Intl

Wed 10/8

4:15 pm-6:26 pm

Nonstop3h 11m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 10/28

9:35 am-1:12 pm

Nonstop2h 37m

Boston Logan Intl

Tue 11/4

7:00 am-3:02 pm

1 stop9h 02m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 10/28

6:00 am-3:04 pm

1 stop8h 04m

Boston Logan Intl

Wed 10/29

6:50 am-9:04 am

Nonstop3h 14m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/29

6:00 am-3:04 pm

1 stop8h 04m

Boston Logan Intl

Tue 11/4

8:50 am-11:13 am

Nonstop3h 23m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 11/13

11:07 am-9:00 am

1 stop20h 53m

Boston Logan Intl

Sun 11/16

10:04 am-9:07 am

2 stops24h 03m

$245

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 10/10

11:32 am-11:59 pm

2 stops35h 27m

Boston Logan Intl

Sat 10/18

6:11 am-5:45 pm

1 stop12h 34m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 18 results

The best insider tips for St. Louis to Boston flights

Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Boston trip

Airports

STL

Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

BOS

BOS offers rideshare services like Uber and Lyft with designated pickup points. Allow extra travel time due to unpredictable traffic.

Our travel experts

Paul Rubio

Expert on BOS

Taryn White

Expert on STL

Best time to book a flight from St. Louis to Boston

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

How far ahead should I book a flight from St. Louis to Boston?

The best time to book flights from St. Louis to Boston is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Boston (average of $218). Flying from St. Louis to Boston in July is currently the most expensive (average of $311). 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 BOS?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Boston in the afternoon. If you’re flexible enough to do this you can expect to save up to 60% on your trip compared to booking a flight at noon.

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

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

Reviews of airlines servicing Boston

Read reviews from past customers who have flown Southwest, Delta, and American Airlines from St. Louis to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

8.0

Very good

7,982 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Spirit Airlines

6.3

Okay

8,039 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,207 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airports do I use to fly from St. Louis to Boston?
Booking a flight from Lambert-St Louis (STL) to Boston Logan Intl (BOS) is your only option if you wish to fly from St. Louis to Boston. On a typical day, there are 5 flights from Lambert-St Louis to Logan Intl, all of which are around 2h 30m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Lambert-St Louis to Boston.
How popular is this St. Louis to Boston flight route?
The Lambert-St Louis to Boston Logan Intl flight path was viewed by 4 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 Boston?
There are many flights that can get you from St. Louis to Boston in 8h 04m. Fly via American Airlines to get the fastest option. St. Louis and Boston are separated by a distance of 1043 mi.
What are the cheapest airlines flying from St. Louis to Boston round-trip?
According to our current data, Frontier ($75), Spirit Airlines ($147), and United Airlines ($153) offers the cheapest pricing from St. Louis to Boston. Users have found that Frontier is 82% cheaper than the other options available to this destination.
What are the most reliable airlines from St. Louis to Boston?
No one likes to see their flight delayed. When booking a flight from St. Louis to Boston consider choosing Qatar Airways (92%), Iberia (92%) or American Airlines (79%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from St. Louis to Boston?
While on average a flight from St. Louis to Boston is generally $1,226, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Lambert-St Louis - Boston Logan Intl), you can expect to pay $207 for that flight.
Can I find deals for flights from St. Louis to Boston that include hotel bookings?
Yes. In addition to deals on St. Louis to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Boston.
Can I find deals for business class flights from St. Louis to Boston?
Yes. Cheapflights offers flight deals from St. Louis to Boston 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 Boston?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Boston (average of $218). Flying from St. Louis to Boston in July is currently the most expensive (average of $311). 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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Top 6 airlines flying from St. Louis to Boston

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$75	Average$217	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$147	Average$249	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$153	Average$377	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$216	Average$282	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$286	Average$431	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$306	Average$451	FlexibilityNo cancel fee	On-time63%

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$130+ Cheap flights from St. Louis to Boston (STL - BOS)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Lambert-St Louis to Boston Logan Intl are usually found in September or August, booked 84 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from St. Louis to Boston

Round-trip from

One-way from

Popular in

Cheapest in

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Good round-trip deal

Good one-way deal

Find flight deals from St. Louis to Boston

Cheapest flights from St. Louis to BostonExplore the most affordable flight options available from St. Louis to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Explore the most affordable flight options available from St. Louis to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Boston that are best for you.

The best insider tips for St. Louis to Boston flights

Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Boston trip

Airports

STL

BOS

Our travel experts

Best time to book a flight from St. Louis to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Boston

How far ahead should I book a flight from St. Louis to Boston?

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

What is the cheapest time of day to fly from STL to BOS?

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

Reviews of airlines servicing Boston

Read reviews from past customers who have flown Southwest, Delta, and American Airlines from St. Louis to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from St. Louis to Boston?

How popular is this St. Louis to Boston flight route?

How long is the flight from St. Louis to Boston?

What are the cheapest airlines flying from St. Louis to Boston round-trip?

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

What are the cheapest flights from St. Louis to Boston?

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

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

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

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

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Top 6 airlines flying from St. Louis to Boston

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Cheapest flights from St. Louis to Boston
Explore the most affordable flight options available from St. Louis to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.