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$68+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Feb 9 — Feb 161
Mon 2/9
Mon 2/16
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 January 10, 2026.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$145
(Kiwi.com)

One-way from

$68
(Cheapflightsfares)

Popular in

November

Cheapest in

September

Average price

$436

Good round-trip deal

$506 or less

Good one-way deal

$350 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. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/288:22 pmSTL - BOS
1 stop27h 51mFrontier
Sun 2/16:00 amBOS - STL
1 stop25h 51mFrontier
Deal found 1/8$145
This Kiwi.com deal was found by Cheapflights users on 1/9. 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 1/308:22 pmSTL - BOS
1 stop27h 51mMultiple Airlines
Sat 2/73:43 pmBOS - STL
1 stop8h 50mMultiple Airlines
Deal found 1/9$154
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/275:42 pmSTL - BOS
1 stop19h 56mMultiple Airlines
Sun 2/16:00 amBOS - STL
1 stop25h 51mMultiple Airlines
Deal found 1/8$161
This Trip.com deal was found by Cheapflights users on 1/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/212:45 pmMCI - BOS
1 stop11h 28mMultiple Airlines
Tue 2/37:00 amBOS - MCI
1 stop10h 09mMultiple Airlines
Deal found 1/8$170
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/275:42 pmSTL - BOS
2 stops30h 21mFrontier
Sun 2/16:00 amBOS - STL
1 stop25h 51mFrontier
Deal found 1/8$172
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/212:45 pmMCI - BOS
1 stop11h 28mMultiple Airlines
Wed 2/47:00 amBOS - MCI
1 stop10h 09mMultiple Airlines
Deal found 1/8$178
This Kiwi.com deal was found by Cheapflights users on 1/10. 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.
Tue 2/243:49 pmSTL - BOS
1 stop29h 12mMultiple Airlines
Mon 3/912:35 pmBOS - STL
2 stops46h 14mMultiple Airlines
Deal found 1/10$179
This Kiwi.com deal was found by Cheapflights users on 1/9. 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.
Tue 3/246:00 amMCI - BOS
1 stop9h 44mSpirit Airlines
Tue 3/314:08 pmBOS - MCI
1 stop8h 51mSpirit Airlines
Deal found 1/9$180
This Kiwi.com deal was found by Cheapflights users on 1/9. 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.
Sun 2/15:42 pmSTL - BOS
2 stops54h 21mMultiple Airlines
Thu 2/53:43 pmBOS - STL
1 stop8h 50mMultiple Airlines
Deal found 1/9$180
This Kiwi.com deal was found by Cheapflights users on 1/9. 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 2/68:22 pmSTL - BOS
1 stop27h 51mMultiple Airlines
Mon 2/95:23 pmBOS - STL
2 stops38h 28mMultiple Airlines
Deal found 1/9$184
This Kiwi.com deal was found by Cheapflights users on 1/9. 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 2/98:22 pmSTL - BOS
1 stop27h 51mMultiple Airlines
Tue 2/174:22 pmBOS - STL
1 stop31h 05mMultiple Airlines
Deal found 1/9$185
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/288:22 pmSTL - BOS
2 stops26h 35mMultiple Airlines
Sun 2/16:00 amBOS - STL
1 stop25h 51mMultiple Airlines
Deal found 1/8$186

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 January 10, 2026.
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

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 2/11

8:17 pm-1:13 am

1 stop27h 56m

Boston Logan Intl

Sun 2/15

6:00 am-6:51 am

1 stop25h 51m

$253

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 2/28

6:01 pm-11:59 pm

1 stop4h 58m

Boston Logan Intl

Mon 3/9

5:30 am-11:35 am

1 stop7h 05m

$270

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Thu 2/26

6:08 pm-11:59 pm

1 stop4h 51m

Boston Logan Intl

Sat 2/28

10:48 am-5:30 pm

1 stop7h 42m

$270

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Thu 2/26

11:20 am-9:51 pm

2 stops9h 31m

Boston Logan Intl

Sat 2/28

9:45 am-2:40 pm

1 stop5h 55m

$275

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Wed 2/11

7:45 am-2:30 pm

1 stop5h 45m

Boston Logan Intl

Wed 2/18

6:00 am-2:40 pm

2 stops9h 40m

$276

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 2/28

3:49 pm-9:06 am

1 stop16h 17m

Boston Logan Intl

Mon 3/2

4:22 pm-10:27 pm

1 stop31h 05m

$283

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Wed 4/8

6:00 am-4:44 pm

1 stop9h 44m

Boston Logan Intl

Wed 4/15

12:23 pm-10:39 pm

1 stop11h 16m

$283

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Tue 1/27

8:45 am-8:05 pm

1 stop10h 20m

Boston Logan Intl

Sat 1/31

6:00 am-10:42 am

1 stop5h 42m

$283

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Mon 3/2

6:05 pm-11:59 pm

1 stop4h 54m

Boston Logan Intl

Mon 3/9

5:30 am-11:35 am

1 stop7h 05m

$289

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Thu 7/9

6:45 pm-1:06 am

1 stop5h 21m

Boston Logan Intl

Tue 7/14

8:00 am-2:45 pm

1 stop7h 45m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

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 $165). 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 January 10, 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 52% 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 January 3, 2026.

Travelers seeking maximum savings on their Missouri to Boston flight should consider departing on Wednesday 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 January 10, 2026.

The most flights from USMO to BOS are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, 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 13 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 $270, Frontier can have you in Boston from Missouri in 4h 58m. 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 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 (84%), American Airlines (81%) or British 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 $156. On average you can expect to pay $1,072. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $170.

  • 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 $165). 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
Seekonk
Brockton
Seabrook
Cranston
Lincoln
Lowell
Smithfield
Peabody
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 January 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$250FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$124Average$276FlexibilityNo cancel feeOn-time65%
DeltaCheapest$153Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$414FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$451FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$300Average$438FlexibilityNo cancel feeOn-time63%

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