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Cheap flights from Missouri to Boston from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Boston departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missouri to Boston

Cheap round-trip flights

Spirit Airlines Logo
5:15 am - 1:48 pmMCI-BOS
7h 33m1 stop
Spirit Airlines Logo
12:20 pm - 11:07 pmBOS-MCI
11h 47m1 stop
$112Spirit Airlines
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Sat, Sep 6 - Wed, Sep 10
Spirit Airlines Logo
6:00 am - 1:48 pmMCI-BOS
6h 48m1 stop
Spirit Airlines Logo
12:20 pm - 11:07 pmBOS-MCI
11h 47m1 stop
$151Spirit Airlines
Find Deal
Wed, Sep 3 - Wed, Sep 24
Spirit Airlines Logo
6:00 am - 1:48 pmMCI-BOS
6h 48m1 stop
Spirit Airlines Logo
3:37 pm - 10:53 pmBOS-MCI
8h 16m1 stop
$162Spirit Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
American Airlines Logo
6:10 am - 3:06 pmSTL-BOS
7h 56m1 stop
American Airlines Logo
11:28 am - 8:32 pmBOS-STL
10h 04m1 stop
$171American Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
5:39 am - 4:50 pmMCI-BOS
10h 11m1 stop
American Airlines Logo
11:28 am - 8:47 pmBOS-MCI
10h 19m1 stop
$185American Airlines
Find Deal
Tue, Sep 2 - Wed, Sep 24
Logo
2:02 pm - 8:35 amSTL-BOS
17h 33m1 stop
Logo
6:30 am - 1:32 pmBOS-STL
8h 02m1 stop
$204
Find Deal
Thu, Aug 21 - Mon, Aug 25
Southwest Logo
12:00 pm - 6:10 pmMCI-BOS
5h 10m1 stop
Southwest Logo
7:10 am - 10:55 amBOS-MCI
4h 45m1 stop
$212Southwest
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Thu, Sep 4 - Mon, Sep 8
Logo
2:02 pm - 8:35 amSTL-BOS
17h 33m1 stop
Logo
6:30 am - 1:32 pmBOS-STL
8h 02m1 stop
$222
Find Deal
Thu, Aug 21 - Thu, Aug 28
Southwest Logo
12:35 pm - 4:10 pmSTL-BOS
2h 35mnonstop
Southwest Logo
5:35 am - 7:30 amBOS-STL
2h 55mnonstop
$223Southwest
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Tue, Aug 26 - Sat, Aug 30
Frontier Logo
3:16 pm - 12:08 pmSTL-BOS
19h 52m1 stop
Frontier Logo
12:53 pm - 1:07 pmBOS-STL
25h 14m1 stop
$235Frontier
Find Deal
Fri, Aug 22 - Sat, Aug 30

American Airlines flights from Missouri to Boston

Our best American Airlines deals on Missouri to Boston flight tickets
American Airlines
Sep 20
STL6:10 amLambert-St Louis
7h 56m
1 stop
BOS3:06 pmBoston Logan Intl
Sep 27
BOS11:28 amBoston Logan Intl
10h 04m
1 stop
STL8:32 pmLambert-St Louis
$171
Find similar
American Airlines
Sep 2
MCI5:39 amKansas City
10h 11m
1 stop
BOS4:50 pmBoston Logan Intl
Sep 24
BOS11:28 amBoston Logan Intl
10h 19m
1 stop
MCI8:47 pmKansas City
$185
Find similar
American Airlines
Aug 27
STL6:06 amLambert-St Louis
8h 13m
1 stop
BOS3:19 pmBoston Logan Intl
Aug 31
BOS5:28 amBoston Logan Intl
8h 25m
1 stop
STL12:53 pmLambert-St Louis
$199
Find similar

Southwest flights from Missouri to Boston

Our best Southwest deals on Missouri to Boston flight tickets
Southwest
Sep 4
MCI12:00 pmKansas City
5h 10m
1 stop
BOS6:10 pmBoston Logan Intl
Sep 8
BOS7:10 amBoston Logan Intl
4h 45m
1 stop
MCI10:55 amKansas City
$212
Find similar
Southwest
Aug 26
STL12:35 pmLambert-St Louis
2h 35m
BOS4:10 pmBoston Logan Intl
Aug 30
BOS5:35 amBoston Logan Intl
2h 55m
STL7:30 amLambert-St Louis
$223
Find similar
Southwest
Oct 17
MCI6:05 pmKansas City
4h 50m
1 stop
BOS11:55 pmBoston Logan Intl
Oct 21
BOS5:15 amBoston Logan Intl
4h 55m
1 stop
MCI9:10 amKansas City
$234
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Missouri to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Sat 9/6

5:15 am-1:48 pm

1 stop7h 33m

Boston Logan Intl

Wed 9/10

12:20 pm-11:07 pm

1 stop11h 47m

$112

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Wed 9/3

6:00 am-1:48 pm

1 stop6h 48m

Boston Logan Intl

Wed 9/24

12:20 pm-11:07 pm

1 stop11h 47m

$151

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Wed 8/27

6:00 am-1:48 pm

1 stop6h 48m

Boston Logan Intl

Wed 9/3

3:37 pm-10:53 pm

1 stop8h 16m

$162

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Sat 9/20

6:10 am-3:06 pm

1 stop7h 56m

Boston Logan Intl

Sat 9/27

11:28 am-8:32 pm

1 stop10h 04m

$171

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Tue 9/2

5:39 am-4:50 pm

1 stop10h 11m

Boston Logan Intl

Wed 9/24

11:28 am-8:47 pm

1 stop10h 19m

$185

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 8/21

2:02 pm-8:35 am

1 stop17h 33m

Boston Logan Intl

Mon 8/25

6:30 am-1:32 pm

1 stop8h 02m

$204

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Thu 9/4

12:00 pm-6:10 pm

1 stop5h 10m

Boston Logan Intl

Mon 9/8

7:10 am-10:55 am

1 stop4h 45m

$212

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 8/21

2:02 pm-8:35 am

1 stop17h 33m

Boston Logan Intl

Thu 8/28

6:30 am-1:32 pm

1 stop8h 02m

$222

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 8/26

12:35 pm-4:10 pm

Nonstop2h 35m

Boston Logan Intl

Sat 8/30

5:35 am-7:30 am

Nonstop2h 55m

$223

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 8/22

3:16 pm-12:08 pm

1 stop19h 52m

Boston Logan Intl

Sat 8/30

12:53 pm-1:07 pm

1 stop25h 14m

$235

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Missouri to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boston?

In general, September is the cheapest month to fly from Missouri to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $373. If you aren’t able to travel during the month of September, then book flights to Boston from Missouri during August instead. Flights to Boston in August, while not as cheap as those in September, still average around $382.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from Missouri to Boston is on a Thursday when prices can be found for as low as $493. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $816.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Missouri to Boston in the afternoon for as low as $421. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Boston, so prices are often more expensive at around $1,071 per ticket.

What is the cheapest Missouri to Boston Logan Intl flight route?

Fly from Lambert-St Louis to Boston Logan Intl for the best Missouri - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Missouri for as low as $354 on momondo.

What cabin class options are available on Missouri to Boston Logan Intl flights?

There are 4 cabin classes available to choose from on Missouri to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to Boston flights?

You could potentially save up to 25% on your flight if you consider stops on a Missouri to Boston flight.

Cheap Missouri to Boston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Boston

Best Price Found

$55

Fastest flight time

2h 30m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from Missouri in the past 72 hours is $55. The best round-trip flight deal from Missouri to Boston found on momondo in the last 72 hours is $112.
The fastest flight from Missouri to Boston takes 2h 30m
Direct flights go from Missouri to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)
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  • When did momondo last update prices for flights from Missouri to Boston Logan Intl Airport?

    Prices for flights from Missouri to Boston Logan Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Missouri to Boston Logan Intl Airport?

  • How old do you have to be to fly from Missouri to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Missouri to Boston?

Best airlines flying from Missouri to Boston

Compare and see reviews for airlines that fly from Missouri to Boston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $58Free CancellationRating
6.3
8,055 reviews
Search Spirit Airlines flights
FrontierPriceFrom $75Free CancellationRating
5.8
3,230 reviews
Search Frontier flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
American AirlinesPriceFrom $206Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $206Free CancellationRating
8.0
7,985 reviews
Search Delta flights
SouthwestPriceFrom $282Free CancellationRating
8.0
4,247 reviews
Search Southwest flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Hampton
Old Orchard Beach
York Beach
Plymouth
Kennebunkport
Nashua
Cambridge
Narragansett
Laconia
Brockton
South Yarmouth
Gloucester
Concord
Everett
Wells
Falmouth
Sturbridge

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Boston?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to Boston. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to Boston with flexible booking policies on momondo?

Yes. All flights to Boston from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Missouri to Boston?

momondo provides multiple filters to help you find the best flight to Boston from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Missouri to Boston right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Boston from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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