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$47+ 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 5 — Dec 121
Fri 12/5
Fri 12/12
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 5, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$169
(Cheapflightsfares)

One-way from

$47
(Kiwi.com)

Popular in

October

Cheapest in

September

Average price

$441

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. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% 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 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/2411:33 amMCI - BOS
1 stop12h 41mFrontier
Thu 1/111:03 amBOS - MCI
1 stop24h 05mFrontier
Deal found 11/5$189
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/36:00 amMCI - BOS
1 stop9h 50mSpirit Airlines
Wed 12/108:11 pmBOS - MCI
1 stop28h 04mSpirit Airlines
Deal found 11/5$195
This Kiwi.com deal was found by Cheapflights users on 11/3. 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
Mon 12/158:28 amBOS - MCI
2 stops12h 22mMultiple Airlines
Deal found 11/3$198
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Tue 12/26:00 amMCI - BOS
2 stops51h 22mMultiple Airlines
Sun 12/1411:28 amBOS - MCI
1 stop25h 23mMultiple Airlines
Deal found 11/3$203
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:47 pmMCI - BOS
1 stop17h 14mSpirit Airlines
Mon 12/1511:08 amBOS - MCI
1 stop13h 07mSpirit Airlines
Deal found 11/3$204
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/244:36 pmMCI - BOS
1 stop7h 08mMultiple Airlines
Wed 12/35:45 amBOS - MCI
1 stop13h 51mMultiple Airlines
Deal found 11/5$205
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/812:46 pmMCI - BOS
2 stops34h 10mMultiple Airlines
Thu 12/1111:28 amBOS - MCI
1 stop24h 50mMultiple Airlines
Deal found 11/3$207
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/53:47 pmMCI - BOS
1 stop17h 14mMultiple Airlines
Sun 12/711:28 amBOS - MCI
1 stop25h 23mMultiple Airlines
Deal found 11/4$213
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/36:00 amMCI - BOS
1 stop9h 50mMultiple Airlines
Wed 12/1010:56 amBOS - MCI
2 stops33h 18mMultiple Airlines
Deal found 11/5$216
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/2411:33 amMCI - BOS
1 stop12h 41mMultiple Airlines
Wed 1/712:29 pmBOS - MCI
1 stop11h 30mMultiple Airlines
Deal found 11/3$221
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/62:02 pmSGF - BOS
1 stop5h 31mAmerican Airlines
Sat 12/135:00 pmBOS - SGF
1 stop6h 33mAmerican Airlines
Deal found 11/4$251
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/512:06 pmSGF - BOS
1 stop8h 27mAmerican Airlines
Fri 12/1211:44 amBOS - SGF
1 stop6h 21mAmerican Airlines
Deal found 11/3$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 5, 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

Mon 12/22

11:13 am-1:19 am

1 stop13h 06m

Boston Logan Intl

Thu 1/1

12:29 pm-10:59 pm

1 stop11h 30m

$249

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 12/6

2:02 pm-8:33 pm

1 stop5h 31m

Boston Logan Intl

Sat 12/13

5:00 pm-10:33 pm

1 stop6h 33m

$251

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Fri 12/5

8:25 am-3:21 pm

1 stop5h 56m

Boston Logan Intl

Fri 12/12

9:50 am-5:05 pm

1 stop8h 15m

$269

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Wed 11/19

8:00 am-4:10 pm

1 stop7h 10m

Boston Logan Intl

Sun 11/23

7:50 am-2:26 pm

1 stop7h 36m

$298

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 11/25

6:32 am-4:32 pm

1 stop9h 00m

Boston Logan Intl

Wed 12/3

1:45 pm-10:00 pm

1 stop9h 15m

$300

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 11/25

8:00 am-6:32 pm

2 stops9h 32m

Boston Logan Intl

Wed 12/3

12:50 pm-5:40 pm

1 stop5h 50m

$303

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Mon 11/17

7:33 pm-11:59 pm

1 stop27h 26m

Boston Logan Intl

Thu 11/20

5:45 pm-12:03 pm

1 stop19h 18m

$306

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 12/6

4:08 pm-10:14 am

2 stops17h 06m

Boston Logan Intl

Sat 12/13

9:15 am-3:23 pm

1 stop7h 08m

$312

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 2/28

8:00 am-2:30 pm

1 stop5h 30m

Boston Logan Intl

Wed 3/4

2:20 pm-9:59 pm

2 stops8h 39m

$336

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Thu 11/20

6:00 am-2:22 pm

1 stop7h 22m

Boston Logan Intl

Mon 11/24

5:40 am-10:53 am

1 stop6h 13m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

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, November is the cheapest month in which you can book a flight from Missouri to Boston (average of $118). Flying from Missouri to Boston in March is currently the most expensive (average of $262). 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 5, 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 $251, American Airlines can have you in Boston from Missouri in 5h 31m. Airlines will cover a distance of 1234 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 $79. 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 $169.

  • 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, November is the cheapest month in which you can book a flight from Missouri to Boston (average of $118). Flying from Missouri to Boston in March is currently the most expensive (average of $262). 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 5, 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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