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Cheap flights from Missouri to Boston from $81

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 3/25. 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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0 bags

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Find the cheapest flights from Missouri to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:22 pm - 11:44 pm
STL
-
BOS
26h 22m
2 stops
Multiple Airlines Logo
12:43 pm - 10:27 pm
BOS
-
STL
10h 44m
1 stop
$157Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Multiple Airlines Logo
8:22 pm - 1:13 am
STL
-
BOS
27h 51m
1 stop
Multiple Airlines Logo
12:43 pm - 10:27 pm
BOS
-
STL
10h 44m
1 stop
$164Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Frontier Logo
8:22 pm - 1:13 am
STL
-
BOS
27h 51m
1 stop
Frontier Logo
6:00 am - 6:51 am
BOS
-
STL
25h 51m
1 stop
$174Frontier
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
11:21 am - 12:51 am
STL
-
BOS
12h 30m
1 stop
Frontier Logo
11:16 am - 11:19 pm
BOS
-
STL
13h 03m
1 stop
$180Frontier
Thu, Apr 16 - Thu, Apr 30
Spirit Airlines Logo
4:24 pm - 11:48 am
MCI
-
BOS
18h 24m
1 stop
Spirit Airlines Logo
4:22 pm - 3:29 pm
BOS
-
MCI
24h 07m
1 stop
$193Spirit Airlines
Tue, Mar 3 - Mon, Mar 9
Spirit Airlines Logo
4:24 pm - 11:48 am
MCI
-
BOS
18h 24m
1 stop
Spirit Airlines Logo
4:23 pm - 11:53 pm
BOS
-
MCI
8h 30m
1 stop
$194Spirit Airlines
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
3:17 pm - 10:14 pm
SGF
-
BOS
5h 57m
1 stop
American Airlines Logo
3:59 pm - 9:02 pm
BOS
-
SGF
6h 03m
1 stop
$251American Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
10:08 am - 7:23 pm
COU
-
BOS
8h 15m
1 stop
American Airlines Logo
6:52 am - 6:20 pm
BOS
-
COU
12h 28m
1 stop
$271American Airlines
Thu, Mar 12 - Sat, Mar 21
United Airlines Logo
6:00 am - 2:26 pm
SGF
-
BOS
7h 26m
2 stops
United Airlines Logo
3:00 pm - 9:57 pm
BOS
-
SGF
7h 57m
1 stop
$277United Airlines
Tue, May 5 - Tue, May 12
United Airlines Logo
11:15 am - 5:19 pm
COU
-
BOS
5h 04m
1 stop
United Airlines Logo
6:00 am - 10:33 am
BOS
-
COU
5h 33m
1 stop
$283United Airlines
Wed, Feb 25 - Mon, Mar 2

Frontier flights from Missouri to Boston

Our best Frontier deals on Missouri to Boston flight tickets
Frontier
Feb 23
STL8:22 pmLambert-St Louis
27h 51m
1 stop
BOS1:13 amBoston Logan Intl
Feb 27
BOS6:00 amBoston Logan Intl
25h 51m
1 stop
STL6:51 amLambert-St Louis
$174
Frontier
Feb 18
STL8:17 pmLambert-St Louis
27h 56m
1 stop
BOS1:13 amBoston Logan Intl
Feb 22
BOS6:00 amBoston Logan Intl
25h 51m
1 stop
STL6:51 amLambert-St Louis
$180
Frontier
Apr 7
STL11:21 amLambert-St Louis
13h 05m
1 stop
BOS1:26 amBoston Logan Intl
Apr 8
BOS12:42 pmBoston Logan Intl
22h 48m
1 stop
STL10:30 amLambert-St Louis
$190

Spirit Airlines flights from Missouri to Boston

Our best Spirit Airlines deals on Missouri to Boston flight tickets
Spirit Airlines
Mar 3
MCI4:24 pmKansas City
18h 24m
1 stop
BOS11:48 amBoston Logan Intl
Mar 9
BOS4:22 pmBoston Logan Intl
24h 07m
1 stop
MCI3:29 pmKansas City
$193
Spirit Airlines
Mar 10
MCI4:24 pmKansas City
18h 24m
1 stop
BOS11:48 amBoston Logan Intl
Mar 17
BOS4:23 pmBoston Logan Intl
8h 30m
1 stop
MCI11:53 pmKansas City
$194
Spirit Airlines
Mar 26
MCI12:24 pmKansas City
10h 35m
1 stop
BOS11:59 pmBoston Logan Intl
Mar 30
BOS4:23 pmBoston Logan Intl
8h 30m
1 stop
MCI11:53 pmKansas City
$208

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 February 11, 2026.
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

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mon 3/2

8:22 pm-11:44 pm

2 stops26h 22m

Boston Logan Intl

Wed 3/4

12:43 pm-10:27 pm

1 stop10h 44m

$157

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mon 3/2

8:22 pm-1:13 am

1 stop27h 51m

Boston Logan Intl

Wed 3/4

12:43 pm-10:27 pm

1 stop10h 44m

$164

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Mon 2/23

8:22 pm-1:13 am

1 stop27h 51m

Boston Logan Intl

Fri 2/27

6:00 am-6:51 am

1 stop25h 51m

$174

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 4/16

11:21 am-12:51 am

1 stop12h 30m

Boston Logan Intl

Thu 4/30

11:16 am-11:19 pm

1 stop13h 03m

$180

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Tue 3/3

4:24 pm-11:48 am

1 stop18h 24m

Boston Logan Intl

Mon 3/9

4:22 pm-3:29 pm

1 stop24h 07m

$193

Kansas CityBoston

MCI - BOS

MCIBOS

Kansas City

Tue 3/10

4:24 pm-11:48 am

1 stop18h 24m

Boston Logan Intl

Tue 3/17

4:23 pm-11:53 pm

1 stop8h 30m

$194

SpringfieldBoston

SGF - BOS

SGFBOS

Springfield-Branson

Tue 5/5

3:17 pm-10:14 pm

1 stop5h 57m

Boston Logan Intl

Tue 5/12

3:59 pm-9:02 pm

1 stop6h 03m

$251

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-6:20 pm

1 stop12h 28m

$271

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

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 $380. 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 $409.

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

The cheapest day to depart from Missouri to Boston is on a Wednesday when prices can be found for as low as $524. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $716.

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 evening. momondo users have found flights departing from Missouri to Boston in the evening for as low as $426. 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 $1,030 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 $444 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 30% 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

$325

Fastest flight time

2h 25m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from Missouri in the past 72 hours is $325. The best round-trip flight deal from Missouri to Boston found on momondo in the last 72 hours is $465.
The fastest flight from Missouri to Boston takes 2h 25m
Direct flights go from Missouri to Boston every day.
There is 1 airport in Boston. From Missouri there are direct flights to Boston Logan Intl (BOS).
Search flight deals

  • 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
FrontierPriceFrom $61Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $73Free CancellationRating
6.3
8,444 reviews
Search Spirit Airlines flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,180 reviews
Search Delta flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
9,273 reviews
Search United Airlines flights
American AirlinesPriceFrom $217Free CancellationRating
7.2
11,265 reviews
Search American Airlines flights
SouthwestPriceFrom $303Free CancellationRating
8.0
4,280 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
Old Orchard Beach
Hampton
York Beach
Kennebunkport
Plymouth
Cambridge
South Yarmouth
Narragansett
Gloucester
Falmouth
Nashua
Brockton
Laconia
Warwick
Sturbridge
Chatham
Everett

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

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