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$78+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOS
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
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 February 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/5. 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.
Tue 3/33:49 pm
STL
-
BOS
1 stop18h 59m
Multiple Airlines
Sun 3/812:50 pm
BOS
-
STL
1 stop25h 29m
Multiple Airlines
Deal found 2/5$179
This Orbitz deal was found by Cheapflights users on 2/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:21 am
STL
-
BOS
1 stop12h 30m
Frontier
Fri 5/1511:16 am
BOS
-
STL
1 stop13h 03m
Frontier
Deal found 2/8$180
This Kiwi.com deal was found by Cheapflights users on 2/6. 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 3/94:51 pm
STL
-
BOS
1 stop17h 57m
Multiple Airlines
Wed 3/114:22 pm
BOS
-
STL
1 stop7h 57m
Multiple Airlines
Deal found 2/6$182
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 3/48:17 pm
STL
-
BOS
1 stop27h 56m
Frontier
Sun 3/812:50 pm
BOS
-
STL
1 stop25h 29m
Frontier
Deal found 2/5$184
This Kiwi.com deal was found by Cheapflights users on 2/5. 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.
Tue 3/33:49 pm
STL
-
BOS
1 stop18h 59m
Multiple Airlines
Mon 3/912:35 pm
BOS
-
STL
2 stops46h 14m
Multiple Airlines
Deal found 2/5$187
This Kiwi.com deal was found by Cheapflights users on 2/7. 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 3/2412:24 pm
MCI
-
BOS
1 stop10h 35m
Spirit Airlines
Tue 3/319:45 am
BOS
-
MCI
1 stop15h 08m
Spirit Airlines
Deal found 2/7$188
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/104:24 pm
MCI
-
BOS
1 stop18h 24m
Spirit Airlines
Tue 3/175:49 pm
BOS
-
MCI
1 stop18h 40m
Spirit Airlines
Deal found 2/9$189
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Thu 4/1611:21 am
STL
-
BOS
1 stop23h 24m
Frontier
Tue 4/2112:55 pm
BOS
-
STL
1 stop18h 55m
Frontier
Deal found 2/8$195
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Fri 4/178:13 pm
STL
-
BOS
1 stop27h 38m
Frontier
Tue 4/2112:55 pm
BOS
-
STL
1 stop18h 55m
Frontier
Deal found 2/8$196
This Kiwi.com deal was found by Cheapflights users on 2/6. 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 3/104:51 pm
STL
-
BOS
1 stop17h 57m
Multiple Airlines
Tue 3/175:49 pm
BOS
-
STL
2 stops17h 48m
Multiple Airlines
Deal found 2/6$198
This Expedia deal was found by Cheapflights users on 2/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:21 am
STL
-
BOS
1 stop12h 30m
Frontier
Tue 5/1211:16 am
BOS
-
STL
1 stop13h 03m
Frontier
Deal found 2/8$201
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 3/48:17 pm
STL
-
BOS
1 stop27h 56m
Multiple Airlines
Mon 3/96:10 pm
BOS
-
STL
2 stops30h 09m
Multiple Airlines
Deal found 2/5$203

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 February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$78
(Trip.com)

Popular in

February

Cheapest in

September

Average price

$475

Good round-trip deal

$465 or less

Good one-way deal

$325 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 ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 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

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Sat 5/9

4:00 pm-10:18 pm

1 stop5h 18m

Boston Logan Intl

Sat 5/16

8:00 am-2:35 pm

1 stop7h 35m

$257

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Thu 3/12

10:08 am-7:23 pm

1 stop8h 15m

Boston Logan Intl

Sat 3/21

6:52 am-8:19 pm

1 stop14h 27m

$271

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Fri 4/3

6:00 am-6:04 pm

1 stop11h 04m

Boston Logan Intl

Fri 4/10

12:22 pm-9:30 pm

1 stop10h 08m

$274

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Tue 5/5

6:00 am-2:26 pm

2 stops7h 26m

Boston Logan Intl

Tue 5/12

3:00 pm-9:57 pm

1 stop7h 57m

$277

ColumbiaBoston

COU - BOS

COUBOS

Columbia Regional

Wed 2/25

11:15 am-5:19 pm

1 stop5h 04m

Boston Logan Intl

Mon 3/2

6:00 am-10:33 am

1 stop5h 33m

$283

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Mon 3/9

4:47 pm-10:51 pm

1 stop5h 04m

Boston Logan Intl

Mon 3/16

5:31 pm-10:35 pm

1 stop6h 04m

$289

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 7/25

5:29 pm-12:59 am

1 stop6h 30m

Boston Logan Intl

Sat 8/1

7:00 pm-11:27 pm

1 stop5h 27m

$291

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 3/12

1:25 pm-4:55 pm

Nonstop2h 30m

Boston Logan Intl

Sat 3/21

5:35 am-7:40 am

Nonstop3h 05m

$299

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Fri 3/27

12:24 pm-11:59 pm

1 stop10h 35m

Boston Logan Intl

Fri 4/3

12:42 pm-7:58 pm

2 stops32h 16m

$300

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 7/25

4:45 pm-8:20 pm

Nonstop2h 35m

Boston Logan Intl

Sat 8/1

5:10 am-10:40 am

1 stop6h 30m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 57 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, September is the cheapest month in which you can book a flight from Missouri to Boston (average of $177). 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 February 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 54% 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 February 7, 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.

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 14 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 $257, Delta can have you in Boston from Missouri in 5h 18m. 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 Spirit Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from Frontier 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 Iberia (82%), Republic Airways (82%) or Southwest (82%) 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 $197. On average you can expect to pay $932. The most popular route, (Kansas City - Boston Logan Intl), can usually be booked for $208.

  • 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, September is the cheapest month in which you can book a flight from Missouri to Boston (average of $177). 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
Medford
Cambridge
Hampton Beach
Watertown
Seekonk
Brockton
Seabrook
Cranston
Lincoln
Warwick
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Lowell
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 February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$73Average$258FlexibilityNo cancel feeOn-time65%
DeltaCheapest$118Average$428FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$153Average$406FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$451FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$303Average$443FlexibilityNo cancel feeOn-time63%

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