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$44+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap flight deals from Missouri to Boston

Keep the following information in mind while searching for Missouri to Boston flight deals. Data was last updated November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$145
(Kiwi.com)

One-way from

$44
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$483

Good round-trip deal

$462 or less

Good one-way deal

$289 or less
Provider with most accurate pricing for Lambert-St Louis-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Boston Logan Intl flights.
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From Missouri to Boston Logan Intl
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One-way flight from Missouri to Boston Logan Intl
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Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Missouri to Boston Logan Intl.
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Price to beat on a one-way flight from Missouri to Boston Logan Intl.
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Find 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 November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Mon 12/2211:13 amMCI - BOS
1 stop21h 29mFrontier
Mon 12/298:08 amBOS - MCI
2 stops51h 00mFrontier
Deal found 11/12$145
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Wed 12/3111:33 amMCI - BOS
1 stop12h 41mMultiple Airlines
Wed 1/710:56 amBOS - MCI
1 stop13h 03mMultiple Airlines
Deal found 11/12$151
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 11/2111:20 amMCI - BOS
1 stop12h 24mFrontier
Mon 11/246:00 amBOS - MCI
1 stop10h 16mFrontier
Deal found 11/11$153
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 11/2111:20 amMCI - BOS
1 stop12h 24mFrontier
Sun 11/2310:46 amBOS - MCI
2 stops29h 30mFrontier
Deal found 11/11$179
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 11/2111:20 amMCI - BOS
1 stop12h 24mMultiple Airlines
Sun 11/239:54 pmBOS - MCI
1 stop18h 22mMultiple Airlines
Deal found 11/11$184
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/3111:33 amMCI - BOS
1 stop21h 35mMultiple Airlines
Tue 1/612:29 pmBOS - MCI
1 stop11h 30mMultiple Airlines
Deal found 11/11$187
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Fri 12/123:47 pmMCI - BOS
1 stop17h 14mMultiple Airlines
Sun 12/1411:28 amBOS - MCI
1 stop25h 23mMultiple Airlines
Deal found 11/12$191
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Fri 11/2111:20 amMCI - BOS
1 stop12h 24mFrontier
Fri 11/286:00 amBOS - MCI
2 stops35h 52mFrontier
Deal found 11/12$210
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Fri 12/512:13 pmMCI - BOS
2 stops34h 43mMultiple Airlines
Sun 12/711:28 amBOS - MCI
1 stop25h 23mMultiple Airlines
Deal found 11/12$212
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Fri 12/2611:13 amMCI - BOS
1 stop13h 01mFrontier
Mon 12/298:08 amBOS - MCI
2 stops51h 00mFrontier
Deal found 11/12$218
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:57 pmSGF - BOS
1 stop6h 03mAmerican Airlines
Sat 12/138:49 amBOS - SGF
1 stop5h 43mAmerican Airlines
Deal found 11/11$252
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:25 pmSGF - BOS
1 stop6h 00mAmerican Airlines
Fri 12/122:35 pmBOS - SGF
1 stop7h 19mAmerican Airlines
Deal found 11/11$269

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 November 13, 2025.
Use the filters below to find and compare flights from Missouri to Boston that are best for you.

Fly from

Missouri

Fly to

Boston

Route

Depart

Return

Price

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Tue 1/20

4:28 pm-2:38 pm

1 stop21h 10m

Boston Logan Intl

Sat 1/24

6:00 am-10:05 am

1 stop29h 05m

$217

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Fri 12/12

7:01 pm-11:56 pm

1 stop27h 55m

Boston Logan Intl

Mon 12/15

11:08 am-11:15 pm

1 stop13h 07m

$229

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 12/6

3:57 pm-11:00 pm

1 stop6h 03m

Boston Logan Intl

Sat 12/13

8:49 am-1:32 pm

1 stop5h 43m

$252

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Tue 1/13

4:29 pm-11:30 pm

1 stop6h 01m

Boston Logan Intl

Sun 1/18

9:45 am-5:09 pm

1 stop8h 24m

$260

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Fri 12/5

4:28 pm-10:33 pm

1 stop5h 05m

Boston Logan Intl

Fri 12/12

6:30 am-12:32 pm

1 stop7h 02m

$269

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Thu 12/11

6:49 pm-1:27 am

1 stop5h 38m

Boston Logan Intl

Thu 12/18

5:40 am-10:50 am

1 stop6h 10m

$294

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 11/25

6:32 am-6:24 pm

1 stop10h 52m

Boston Logan Intl

Wed 12/3

6:00 am-10:00 pm

1 stop17h 00m

$305

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 12/6

4:08 pm-10:14 am

2 stops17h 06m

Boston Logan Intl

Sat 12/13

10:15 am-3:23 pm

1 stop6h 08m

$313

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 1/1

11:51 am-7:23 am

2 stops18h 32m

Boston Logan Intl

Mon 1/5

11:55 am-10:56 am

1 stop24h 01m

$324

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Fri 11/28

2:05 pm-11:41 pm

1 stop8h 36m

Boston Logan Intl

Tue 12/2

1:24 pm-9:55 pm

1 stop9h 31m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Missouri to Boston (average of $119). Flying from Missouri to Boston in July is currently the most expensive (average of $255). 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 November 13, 2025.

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 48% 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 December 16, 2024.

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

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 12 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 $348, Spirit Airlines can have you in Boston from Missouri in 4h 53m. 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 cheapest airlines to fly from Missouri to Boston one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $93. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Missouri to Boston for a low price.

  • 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 Qatar Airways (84%), Iberia (84%) or Republic Airways (79%) 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 $220. On average you can expect to pay $906. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $151.

  • 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, January is the cheapest month in which you can book a flight from Missouri to Boston (average of $119). Flying from Missouri to Boston in July is currently the most expensive (average of $255). 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
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$250FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$124Average$267FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$455FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$415FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$461FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$304Average$436FlexibilityNo cancel feeOn-time63%

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