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$79+ Cheap flights from Missouri to Boston (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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Missouri to Boston

Cheapest flights from Missouri to Boston
Explore the most affordable flight options available from Missouri to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 pm
STL
-
BOS
1 stop5h 57m
Frontier
Sun 4/125:30 am
BOS
-
STL
1 stop6h 08m
Frontier
Deal found 3/11$200
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 pm
STL
-
BOS
1 stop5h 57m
Multiple Airlines
Tue 4/146:01 am
BOS
-
STL
2 stops25h 49m
Multiple Airlines
Deal found 3/11$251
This Expedia deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Thu 5/146:00 am
BOS
-
STL
1 stop11h 54m
Frontier
Deal found 3/11$255
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:23 pm
STL
-
BOS
1 stop14h 02m
Frontier
Tue 4/286:00 am
BOS
-
STL
1 stop25h 50m
Frontier
Deal found 3/11$257
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:23 pm
STL
-
BOS
1 stop14h 02m
Multiple Airlines
Tue 4/286:30 am
BOS
-
STL
2 stops25h 20m
Multiple Airlines
Deal found 3/11$260
This Priceline deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:29 pm
STL
-
BOS
1 stop6h 00m
Frontier
Sun 4/55:30 am
BOS
-
STL
1 stop6h 00m
Frontier
Deal found 3/12$270
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 pm
STL
-
BOS
1 stop16h 16m
Multiple Airlines
Mon 4/135:49 pm
BOS
-
STL
2 stops38h 01m
Multiple Airlines
Deal found 3/11$271
This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Tue 6/96:00 am
BOS
-
STL
1 stop8h 22m
Frontier
Deal found 3/11$276
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:59 pm
STL
-
BOS
1 stop16h 32m
Frontier
Wed 4/156:00 am
BOS
-
STL
1 stop29h 30m
Frontier
Deal found 3/11$295
This Priceline deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:27 pm
STL
-
BOS
1 stop6h 57m
Frontier
Sun 5/319:12 am
BOS
-
STL
1 stop9h 21m
Frontier
Deal found 3/11$296
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
-
BOS
2 stops19h 37m
Multiple Airlines
Sun 5/36:00 am
BOS
-
STL
1 stop25h 50m
Multiple Airlines
Deal found 3/12$304
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:30 am
COU
-
BOS
1 stop7h 11m
United Airlines
Wed 4/159:20 am
BOS
-
COU
1 stop6h 28m
United Airlines
Deal found 3/11$308

Find flight deals from Missouri to Boston

Keep the following information in mind while searching for Missouri to Boston flight deals. Data was last updated March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Frontier)

One-way from

$79
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$472

Good round-trip deal

$431 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for Lambert-St Louis-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Boston Logan Intl flights.
Search Deals
From Missouri to Boston Logan Intl
Search Deals
One-way flight from Missouri to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Missouri to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Missouri to Boston Logan Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Boston 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, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
Use the filters below to find and compare flights from Missouri to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Wed 4/8

11:30 am-7:41 pm

1 stop7h 11m

Boston Logan Intl

Wed 4/15

9:20 am-2:48 pm

1 stop6h 28m

$308

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Wed 8/12

6:30 pm-1:05 am

1 stop5h 35m

Boston Logan Intl

Sat 8/15

5:45 am-2:30 pm

2 stops9h 45m

$314

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Thu 4/9

11:30 am-5:26 pm

1 stop4h 56m

Boston Logan Intl

Wed 4/15

5:45 am-2:48 pm

2 stops10h 03m

$314

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Tue 8/4

9:30 am-7:20 pm

1 stop8h 50m

Boston Logan Intl

Tue 8/11

7:41 am-12:28 pm

1 stop5h 47m

$329

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Fri 3/27

9:05 am-8:04 pm

1 stop9h 59m

Boston Logan Intl

Mon 3/30

4:23 pm-9:56 pm

1 stop6h 33m

$338

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Fri 3/27

11:15 am-7:42 pm

1 stop7h 27m

Boston Logan Intl

Tue 3/31

11:15 am-9:03 pm

1 stop10h 48m

$338

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 3/31

6:30 pm-12:05 am

1 stop4h 35m

Boston Logan Intl

Sat 4/4

1:10 pm-8:19 pm

2 stops8h 09m

$344

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 5/19

2:30 pm-10:40 pm

2 stops7h 10m

Boston Logan Intl

Wed 5/20

2:25 pm-10:00 pm

2 stops8h 35m

$356

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 3/31

11:30 am-7:41 pm

1 stop7h 11m

Boston Logan Intl

Sat 4/4

12:00 pm-9:03 pm

1 stop10h 03m

$358

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 5/7

5:40 am-12:40 pm

1 stop6h 00m

Boston Logan Intl

Sat 5/16

11:50 am-1:45 pm

Nonstop2h 55m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Missouri to Boston

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

What is the cheapest month to book a flight from Missouri to Boston?

Currently, September is the cheapest month in which you can book a flight from Missouri to Boston (average of $185). Flying from Missouri to Boston in March is currently the most expensive (average of $298). 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 MO to BOS?

Find hourly flight availability from Missouri to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.

A simple way to save on the total cost of your ticket is to fly from Missouri to Boston in the evening. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Missouri to Boston?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Boston. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their Missouri to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Missouri to Boston

Explore weekly flight availability from Missouri to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 16, 2026.

The most flights from USMO to BOS are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

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

  • What airport do you fly into for flights to Boston from Missouri?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Boston from Missouri.

  • How popular is this Missouri to Boston flight route?

    The Missouri to Boston Logan Intl flight path was viewed by 17 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 Missouri to Boston?

    For as low as $343, United Airlines can have you in Boston from Missouri in 2h 35m. Airlines will cover a distance of 1043 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Missouri to Boston?

    When deciding which route to take from Missouri to Boston consider Kansas City - Boston Logan Intl, Lambert-St Louis - Boston Logan Intl or Springfield-Branson - Boston Logan Intl as they are the most popular.

  • What are the most reliable airlines from Missouri to Boston?

    No one likes to see their flight delayed. When booking a flight from Missouri to Boston consider choosing British Airways (69%), Southwest (68%) or Iberia (68%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Missouri to Boston?

    The cheapest flight price from Missouri to Boston is $170. On average you can expect to pay $863. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $226.

  • Can I find deals for flights from Missouri to Boston that include hotel bookings?

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

  • How can I find direct flights from Missouri to Boston?

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

  • Can I find deals for business class flights from Missouri to Boston?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Boston?

    Currently, September is the cheapest month in which you can book a flight from Missouri to Boston (average of $185). Flying from Missouri to Boston in March is currently the most expensive (average of $298). 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.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Seekonk
Brockton
Seabrook
Cranston
Chelsea
Smithfield
Lincoln
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy

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Top 6 airlines flying from Missouri to Boston

Discover the top 6 airlines that operate flights from Missouri to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$73Average$234FlexibilityNo cancel feeOn-time65%
FrontierCheapest$75Average$260FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$425FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$217Average$447FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$254Average$458FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$296Average$454FlexibilityNo cancel feeOn-time63%

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