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$67+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2110:57 amSTL - BOS
1 stop21h 45mFrontier
Mon 1/1211:41 amBOS - STL
2 stops44h 10mFrontier
Deal found 12/10$213
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2110:57 amSTL - BOS
1 stop21h 45mMultiple Airlines
Thu 1/83:43 pmBOS - STL
1 stop17h 07mMultiple Airlines
Deal found 12/10$216
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2110:57 amSTL - BOS
1 stop21h 45mMultiple Airlines
Sat 1/107:00 amBOS - STL
1 stop16h 33mMultiple Airlines
Deal found 12/10$217
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2110:57 amSTL - BOS
1 stop21h 45mFrontier
Fri 1/96:00 amBOS - STL
1 stop9h 48mFrontier
Deal found 12/10$233
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/199:07 amSTL - BOS
2 stops39h 07mMultiple Airlines
Thu 1/83:43 pmBOS - STL
1 stop7h 50mMultiple Airlines
Deal found 12/10$240
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/226:15 pmMCI - BOS
1 stop15h 35mSpirit Airlines
Wed 1/75:45 amBOS - MCI
1 stop12h 25mSpirit Airlines
Deal found 12/9$241
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/199:07 amSTL - BOS
2 stops39h 07mMultiple Airlines
Sat 1/107:00 amBOS - STL
1 stop16h 33mMultiple Airlines
Deal found 12/10$241
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2110:57 amSTL - BOS
1 stop21h 45mMultiple Airlines
Sun 1/113:43 pmBOS - STL
1 stop17h 22mMultiple Airlines
Deal found 12/10$242
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/196:15 pmMCI - BOS
2 stops29h 59mMultiple Airlines
Wed 1/75:45 amBOS - MCI
1 stop12h 25mMultiple Airlines
Deal found 12/9$246
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/226:15 pmMCI - BOS
1 stop15h 35mSpirit Airlines
Thu 1/85:27 pmBOS - MCI
1 stop18h 04mSpirit Airlines
Deal found 12/9$247
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/196:15 pmMCI - BOS
2 stops29h 59mMultiple Airlines
Thu 1/85:27 pmBOS - MCI
1 stop18h 04mMultiple Airlines
Deal found 12/9$253
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Sat 12/206:15 pmMCI - BOS
2 stops30h 04mMultiple Airlines
Wed 1/75:45 amBOS - MCI
1 stop12h 25mMultiple Airlines
Deal found 12/9$257

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 December 12, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$128
(Frontier)

One-way from

$67
(Cheapflightsfares)

Popular in

November

Cheapest in

September

Average price

$423

Good round-trip deal

$496 or less

Good one-way deal

$277 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. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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 2/2

12:45 pm-1:13 am

1 stop11h 28m

Boston Logan Intl

Sat 2/7

7:00 am-4:09 pm

1 stop10h 09m

$180

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Mon 2/2

11:26 am-2:38 pm

2 stops26h 12m

Boston Logan Intl

Sat 2/7

7:00 am-4:09 pm

1 stop10h 09m

$212

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 12/25

10:42 am-1:19 am

1 stop13h 37m

Boston Logan Intl

Thu 1/1

6:00 am-9:45 am

2 stops28h 45m

$277

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 12/19

8:37 pm-10:01 am

1 stop12h 24m

Boston Logan Intl

Mon 1/12

11:41 am-6:51 am

2 stops44h 10m

$287

JoplinBoston

JLN - BOS

JLNBOS

Joplin

Mon 2/2

8:52 am-6:57 pm

2 stops9h 05m

Boston Logan Intl

Sat 2/7

12:45 pm-5:34 pm

1 stop5h 49m

$290

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 12/19

8:37 pm-10:01 am

1 stop12h 24m

Boston Logan Intl

Sat 1/10

7:00 am-10:33 pm

1 stop16h 33m

$291

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Tue 5/12

6:45 pm-1:03 am

1 stop5h 18m

Boston Logan Intl

Sat 5/16

8:00 am-2:53 pm

1 stop7h 53m

$294

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 1/17

8:45 am-12:20 pm

Nonstop2h 35m

Boston Logan Intl

Sun 1/18

6:25 am-8:45 am

Nonstop3h 20m

$297

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 12/25

11:43 am-3:25 pm

Nonstop2h 42m

Boston Logan Intl

Thu 1/1

12:03 pm-2:20 pm

Nonstop3h 17m

$297

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 12/25

11:43 am-3:25 pm

Nonstop2h 42m

Boston Logan Intl

Wed 12/31

12:03 pm-2:20 pm

Nonstop3h 17m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 59 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 $116). Flying from Missouri to Boston in July is currently the most expensive (average of $266). 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 December 12, 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. 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 December 12, 2025.

The most flights from USMO to BOS are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, 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 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 $290, Spirit Airlines can have you in Boston from Missouri in 9h 05m. Airlines will cover a distance of 1293 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 Republic Airways (92%), Qatar Airways (81%) or Iberia (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 $240. On average you can expect to pay $850. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $164.

  • 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 $116). Flying from Missouri to Boston in July is currently the most expensive (average of $266). 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
Cranston
Lincoln
Lowell
Smithfield
Peabody
Brockton
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$250FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$124Average$274FlexibilityNo cancel feeOn-time65%
DeltaCheapest$158Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$410FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$458FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$304Average$433FlexibilityNo cancel feeOn-time63%

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