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$66+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
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 August 17, 2025.

Round-trip from

$238
(Kiwi.com)

One-way from

$66
(FlightHub)

Popular in

February

Cheapest in

October

Average price

$372

Good round-trip deal

$358 or less

Good one-way deal

$196 or less
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. 8% potential increase in price ($35 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 August 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 August 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/1511:13 amMCI - BOS
1 stop23h 00mSpirit Airlines
Sat 9/203:00 pmBOS - MCI
2 stops33h 07mSpirit Airlines
Deal found 8/16$238
This Mytrip deal was found by Cheapflights users on 8/16. 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.
Tue 9/95:15 amMCI - BOS
3 stops16h 55mSpirit Airlines
Sat 9/1312:20 pmBOS - MCI
1 stop11h 47mSpirit Airlines
Deal found 8/16$239
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Sun 10/195:15 amMCI - BOS
2 stops25h 12mMultiple Airlines
Wed 10/2912:31 pmBOS - MCI
1 stop12h 15mMultiple Airlines
Deal found 8/16$240
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/115:15 amMCI - BOS
1 stop7h 33mSpirit Airlines
Sun 9/146:49 pmBOS - MCI
1 stop16h 29mSpirit Airlines
Deal found 8/16$241
This Orbitz deal was found by Cheapflights users on 8/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1611:37 amMCI - BOS
2 stops19h 56mMultiple Airlines
Mon 10/206:11 amBOS - MCI
1 stop11h 05mMultiple Airlines
Deal found 8/17$242
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 9/44:00 pmSTL - BOS
2 stops14h 52mMultiple Airlines
Sat 9/133:00 pmBOS - STL
1 stop19h 40mMultiple Airlines
Deal found 8/15$242
This Mytrip deal was found by Cheapflights users on 8/16. 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.
Mon 9/111:44 amMCI - BOS
2 stops25h 04mSpirit Airlines
Sat 9/612:20 pmBOS - MCI
1 stop11h 47mSpirit Airlines
Deal found 8/16$243
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 11/126:00 amSTL - BOS
1 stop8h 03mAmerican Airlines
Wed 11/196:30 amBOS - STL
1 stop9h 32mAmerican Airlines
Deal found 8/15$243
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 11/410:57 amSTL - BOS
1 stop12h 02mMultiple Airlines
Thu 11/1312:20 pmBOS - STL
2 stops28h 14mMultiple Airlines
Deal found 8/17$244
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 10/235:15 amMCI - BOS
1 stop7h 29mSpirit Airlines
Mon 10/276:11 amBOS - MCI
1 stop11h 05mSpirit Airlines
Deal found 8/16$245
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/305:15 amMCI - BOS
2 stops28h 58mSpirit Airlines
Sat 10/412:20 pmBOS - MCI
1 stop11h 47mSpirit Airlines
Deal found 8/17$246
This Frontier deal was found by Cheapflights users on 8/14. 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 9/185:15 pmMCI - BOS
2 stops13h 37mFrontier
Thu 9/2510:53 amBOS - MCI
1 stop6h 27mFrontier
Deal found 8/14$247

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 August 17, 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 9/15

11:13 am-11:13 am

1 stop23h 00m

Boston Logan Intl

Sat 9/20

3:00 pm-11:07 pm

2 stops33h 07m

$238

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Mon 9/22

5:15 am-1:48 pm

1 stop7h 33m

Boston Logan Intl

Sat 9/27

12:20 pm-11:07 pm

1 stop11h 47m

$238

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Sun 12/7

1:44 pm-10:08 am

1 stop19h 24m

Boston Logan Intl

Tue 12/9

11:19 am-11:08 am

1 stop24h 49m

$239

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Tue 9/9

5:15 am-11:10 pm

3 stops16h 55m

Boston Logan Intl

Sat 9/13

12:20 pm-11:07 pm

1 stop11h 47m

$239

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Thu 10/16

5:15 am-1:44 pm

1 stop7h 29m

Boston Logan Intl

Fri 10/24

6:11 am-4:16 pm

1 stop11h 05m

$239

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Sun 8/31

6:00 am-1:48 pm

1 stop6h 48m

Boston Logan Intl

Sat 9/6

12:20 pm-11:07 pm

1 stop11h 47m

$240

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Thu 9/11

5:15 am-1:48 pm

1 stop7h 33m

Boston Logan Intl

Sun 9/14

6:49 pm-10:18 am

1 stop16h 29m

$241

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Fri 10/24

5:14 pm-11:26 am

1 stop17h 12m

Boston Logan Intl

Mon 10/27

6:11 am-4:16 pm

1 stop11h 05m

$241

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Thu 10/16

11:37 am-8:33 am

2 stops19h 56m

Boston Logan Intl

Mon 10/20

6:11 am-4:16 pm

1 stop11h 05m

$242

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 9/4

4:00 pm-7:52 am

2 stops14h 52m

Boston Logan Intl

Sat 9/13

3:00 pm-9:40 am

1 stop19h 40m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 56 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 $218). Flying from Missouri 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 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 August 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Boston as you normally would.

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 August 17, 2025.

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 (4 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 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Missouri to Boston one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $66. However, be on the lookout for offers from American Airlines and Frontier, 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 (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 Missouri to Boston?

    The cheapest flight price from Missouri to Boston is $95. On average you can expect to pay $1,228. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $167.

  • 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 $218). Flying from Missouri 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.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Watertown
Hampton Beach
Waltham
Seabrook
Lowell
Lincoln
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Swansea
Saugus
Burlington
Braintree

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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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$61Average$207FlexibilityNo cancel feeOn-time65%
FrontierCheapest$75Average$217FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$153Average$460FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$198Average$483FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$421FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$276Average$429FlexibilityNo cancel feeOn-time63%

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