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

The Lambert-St Louis to Boston Logan Intl flight path was viewed by 10 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 7h 50m. Fly via Southwest 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 Delta ($216) 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 $1,008, our data shows the cheapest flight currently is $185. When looking at the most popular route, (Lambert-St Louis - Boston Logan Intl), you can expect to pay $187 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 Envoy Air (87%) 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 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.

$93+ 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 54 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from St. Louis to Boston

Round-trip from	$250 (Kiwi.com)
One-way from	$93 (Expedia)
Popular in	April
Cheapest in	September
Average price	$391
Good round-trip deal	$410 or less
Good one-way deal	$230 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 September 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 September 16, 2025.

Sun 10/510:57 amSTL - BOS

1 stop23h 29mMultiple Airlines

Thu 10/912:22 pmBOS - STL

2 stops23h 15mMultiple Airlines

Deal found 9/15

$250

Sun 10/1910:57 amSTL - BOS

1 stop23h 29mMultiple Airlines

Thu 10/238:24 pmBOS - STL

2 stops14h 52mMultiple Airlines

Deal found 9/14

$251

Thu 11/612:20 pmSTL - BOS

1 stop11h 20mMultiple Airlines

Mon 11/1012:20 pmBOS - STL

2 stops21h 47mMultiple Airlines

Deal found 9/16

$252

Fri 10/1711:32 amSTL - BOS

2 stops11h 27mMultiple Airlines

Sat 10/1812:31 pmBOS - STL

1 stop22h 31mMultiple Airlines

Deal found 9/15

$253

Fri 10/37:55 pmSTL - BOS

2 stops16h 53mMultiple Airlines

Wed 10/86:16 amBOS - STL

1 stop28h 46mMultiple Airlines

Deal found 9/15

$254

Mon 10/64:00 pmSTL - BOS

2 stops18h 26mMultiple Airlines

Thu 10/99:50 amBOS - STL

1 stop25h 47mMultiple Airlines

Deal found 9/15

$255

Wed 10/17:55 pmSTL - BOS

2 stops13h 03mFrontier

Thu 10/99:50 amBOS - STL

1 stop25h 47mFrontier

Deal found 9/15

$256

Thu 10/1610:57 amSTL - BOS

1 stop12h 02mMultiple Airlines

Sat 10/256:17 amBOS - STL

2 stops28h 05mMultiple Airlines

Deal found 9/14

$258

Sat 10/187:15 pmSTL - BOS

1 stop15h 11mSpirit Airlines

Sat 10/252:15 pmBOS - STL

2 stops20h 47mSpirit Airlines

Deal found 9/14

$259

Wed 10/297:00 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Tue 11/116:48 amBOS - STL

1 stop9h 14mAmerican Airlines

Deal found 9/13

$260

Wed 10/296:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Wed 11/57:45 amBOS - STL

Nonstop3h 25mAmerican Airlines

Deal found 9/14

$261

Wed 12/179:53 amSTL - BOS

1 stop8h 06mAmerican Airlines

Fri 1/94:10 pmBOS - STL

1 stop8h 39mAmerican Airlines

Deal found 9/14

$262

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 September 16, 2025.

Tue 10/288:55 amSTL - BOS

2 stops7h 50mSouthwest

Wed 10/293:20 pmBOS - STL

1 stop5h 30mSouthwest

Deal found 9/16

$342

Wed 10/86:30 amSTL - BOS

1 stop7h 10mUnited Airlines

Wed 10/155:30 amBOS - STL

2 stops9h 57mUnited Airlines

Deal found 9/14

$382

Sat 2/218:00 amSTL - BOS

Nonstop2h 30mSouthwest

Tue 2/245:30 pmBOS - STL

1 stop5h 25mSouthwest

Deal found 9/14

$343

Wed 12/1710:15 amSTL - BOS

2 stops7h 55mSouthwest

Tue 1/63:20 pmBOS - STL

2 stops7h 35mSouthwest

Deal found 9/15

$347

Tue 10/146:00 amSTL - BOS

1 stop6h 25mUnited Airlines

Sat 10/186:00 amBOS - STL

2 stops9h 27mUnited Airlines

Deal found 9/13

$393

Thu 10/235:00 amSTL - BOS

2 stops7h 25mUnited Airlines

Tue 10/289:40 amBOS - STL

1 stop7h 07mUnited Airlines

Deal found 9/14

$393

Wed 12/31:50 pmSTL - BOS

Nonstop2h 30mSouthwest

Fri 12/51:35 pmBOS - STL

1 stop27h 15mSouthwest

Deal found 9/16

$370

Thu 10/307:00 amSTL - BOS

1 stop7h 17mUnited Airlines

Sat 11/16:00 amBOS - STL

2 stops10h 46mUnited Airlines

Deal found 9/14

$404

Fri 11/72:40 pmSTL - BOS

Nonstop2h 30mSouthwest

Mon 11/101:30 pmBOS - STL

Nonstop3h 05mSouthwest

Deal found 9/15

$376

Thu 12/111:15 pmSTL - BOS

2 stops8h 00mSouthwest

Mon 12/159:05 amBOS - STL

2 stops8h 15mSouthwest

Deal found 9/15

$379

Mon 10/273:00 pmSTL - BOS

Nonstop2h 35mSouthwest

Fri 11/286:10 amBOS - STL

1 stop9h 15mSouthwest

Deal found 9/16

$386

Wed 12/1712:45 pmSTL - BOS

2 stops7h 20mSouthwest

Fri 1/91:20 pmBOS - STL

2 stops8h 40mSouthwest

Deal found 9/14

$390

Last-minute flights from St. Louis to Boston
Discover last-minute flight deals from St. Louis to Boston. Data last updated September 16, 2025 and is based on user searches.

Wed 10/17:55 pmSTL - BOS

2 stops13h 03mFrontier

Thu 10/99:50 amBOS - STL

1 stop25h 47mFrontier

Deal found 9/15

$256

Fri 10/37:55 pmSTL - BOS

2 stops16h 53mMultiple Airlines

Wed 10/86:16 amBOS - STL

1 stop28h 46mMultiple Airlines

Deal found 9/15

$254

Sun 10/510:57 amSTL - BOS

1 stop23h 29mMultiple Airlines

Thu 10/912:22 pmBOS - STL

2 stops23h 15mMultiple Airlines

Deal found 9/15

$250

Sun 10/510:57 amSTL - BOS

1 stop23h 29mSpirit Airlines

Sat 10/1112:31 pmBOS - STL

1 stop22h 31mSpirit Airlines

Deal found 9/15

$264

Mon 10/64:00 pmSTL - BOS

2 stops18h 26mMultiple Airlines

Thu 10/99:50 amBOS - STL

1 stop25h 47mMultiple Airlines

Deal found 9/15

$255

Thu 10/1610:57 amSTL - BOS

1 stop12h 02mMultiple Airlines

Sat 10/256:17 amBOS - STL

2 stops28h 05mMultiple Airlines

Deal found 9/14

$258

Fri 10/1711:32 amSTL - BOS

2 stops11h 27mMultiple Airlines

Sat 10/1812:31 pmBOS - STL

1 stop22h 31mMultiple Airlines

Deal found 9/15

$253

Sat 10/187:15 pmSTL - BOS

1 stop15h 11mSpirit Airlines

Sat 10/252:15 pmBOS - STL

2 stops20h 47mSpirit Airlines

Deal found 9/14

$259

Sun 10/1910:57 amSTL - BOS

1 stop23h 29mMultiple Airlines

Thu 10/238:24 pmBOS - STL

2 stops14h 52mMultiple Airlines

Deal found 9/14

$251

Wed 10/297:00 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Tue 11/116:48 amBOS - STL

1 stop9h 14mAmerican Airlines

Deal found 9/13

$260

Wed 10/296:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Wed 11/57:45 amBOS - STL

Nonstop3h 25mAmerican Airlines

Deal found 9/14

$261

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 September 16, 2025.

Thu 10/2310:57 amSTL - BOS

1 stop12h 02mSpirit Airlines

Deal found 9/13

$93

Sat 12/62:48 pmSTL - BOS

1 stop8h 52mSpirit Airlines

Deal found 9/15

$95

Sat 10/186:00 amSTL - BOS

1 stop8h 04mAmerican Airlines

Deal found 9/13

$107

Sun 11/1612:20 pmSTL - BOS

1 stop11h 20mSpirit Airlines

Deal found 9/15

$108

Mon 10/64:00 pmSTL - BOS

2 stops18h 26mMultiple Airlines

Deal found 9/15

$111

Sun 12/712:20 pmSTL - BOS

1 stop11h 20mSpirit Airlines

Deal found 9/14

$113

Fri 11/144:56 pmSTL - BOS

1 stop16h 52mFrontier

Deal found 9/14

$114

Sun 10/1910:57 amSTL - BOS

1 stop23h 29mSpirit Airlines

Deal found 9/13

$115

Sun 11/1611:17 amSTL - BOS

1 stop20h 43mFrontier

Deal found 9/14

$116

Thu 11/276:00 amSTL - BOS

1 stop9h 32mAmerican Airlines

Deal found 9/14

$117

Wed 12/39:53 amSTL - BOS

1 stop8h 06mAmerican Airlines

Deal found 9/14

$124

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 10/28

8:55 am-5:45 pm

2 stops7h 50m

Boston Logan Intl

Wed 10/29

3:20 pm-7:50 pm

1 stop5h 30m

$342

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 2/21

8:00 am-11:30 am

Nonstop2h 30m

Boston Logan Intl

Tue 2/24

5:30 pm-9:55 pm

1 stop5h 25m

$343

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 12/17

10:15 am-7:10 pm

2 stops7h 55m

Boston Logan Intl

Tue 1/6

3:20 pm-9:55 pm

2 stops7h 35m

$347

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 12/3

1:50 pm-5:20 pm

Nonstop2h 30m

Boston Logan Intl

Fri 12/5

1:35 pm-3:50 pm

1 stop27h 15m

$370

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 11/7

2:40 pm-6:10 pm

Nonstop2h 30m

Boston Logan Intl

Mon 11/10

1:30 pm-3:35 pm

Nonstop3h 05m

$376

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 12/11

1:15 pm-10:15 pm

2 stops8h 00m

Boston Logan Intl

Mon 12/15

9:05 am-4:20 pm

2 stops8h 15m

$379

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 10/8

6:30 am-2:40 pm

1 stop7h 10m

Boston Logan Intl

Wed 10/15

5:30 am-2:27 pm

2 stops9h 57m

$382

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mon 10/27

3:00 pm-6:35 pm

Nonstop2h 35m

Boston Logan Intl

Fri 11/28

6:10 am-2:25 pm

1 stop9h 15m

$386

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 12/17

12:45 pm-9:05 pm

2 stops7h 20m

Boston Logan Intl

Fri 1/9

1:20 pm-9:00 pm

2 stops8h 40m

$390

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 10/14

6:00 am-1:25 pm

1 stop6h 25m

Boston Logan Intl

Sat 10/18

6:00 am-2:27 pm

2 stops9h 27m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 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 54 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 evening. 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 Thursday evenings 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

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,242 reviews

Southwest

8.0

Very good

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,957 reviews

Southwest

8.0

Very good

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Spirit Airlines

6.3

Okay

8,019 reviews

Southwest

8.0

Very good

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,174 reviews

Southwest

8.0

Very good

4,242 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 10 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 7h 50m. Fly via Southwest 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 Delta ($216) 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 Envoy Air (87%) 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 $1,008, our data shows the cheapest flight currently is $185. When looking at the most popular route, (Lambert-St Louis - Boston Logan Intl), you can expect to pay $187 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$198	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$147	Average$261	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$216	Average$284	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$216	Average$334	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$293	Average$434	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$306	Average$457	FlexibilityNo cancel fee	On-time63%

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$93+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Boston with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Boston Logan Intl are usually found in September or August, booked 54 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from St. Louis to Boston

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 September 16, 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 September 16, 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?

Traveling to a place near Boston?

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Alternative routes for 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 September 16, 2025.