Find Cheap Flights from Lambert-St Louis to Boston Logan International (STL - BOS)

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Thu 12/14
Thu 12/21
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Good to Know

Low Season:
December
Best time to beat the crowds
1%
expected price decrease
High Season:
May
Most popular time to fly
5%
expected price increase
Average Price:
$371
(avg. price over the last 2 weeks)
Good Deal:
$283
or less (round trip)

When to Book Flights from Lambert-St Louis to Boston Logan International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $283 or less.
The cheapest flight from Lambert-St Louis to Boston Logan International was found 29 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be April, May and June. The cheapest month to fly is December.
Morning departure is around 3% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Lambert-St Louis to Boston Logan International Flights

How long does a flight from Lambert-St Louis to Boston Logan International take?
An average nonstop flight takes 4h 55m, covering a distance of 1044 miles.
How many flights are there between Lambert-St Louis and Boston Logan International?
There are 48 (nonstop) flights between Lambert-St Louis and Boston Logan International per week, averaging 7 per day.
Which airlines provide the cheapest flights from Lambert-St Louis to Boston Logan International?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($230), Delta ($314) and American Airlines ($323).
Do I need a passport to fly between Lambert-St Louis and Boston Logan International?
No.
Which airlines fly most frequently between Lambert-St Louis and Boston Logan International?
Southwest (6 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Lambert-St Louis to Boston Logan International?
For Lambert-St Louis to Boston Logan International, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Boston Logan International back to Lambert-St Louis, the best deals are generally found on Tuesday, with Sunday being the most expensive.

Book cheap flights from Lambert-St Louis to Boston Logan International (round-trip)

Airports
Origin
St. Louis
$230
only
$230
Destination
Boston
$230
only
$230
Tue, Jan 9
STL
BOS
7h 43m
Tue, Jan 16
BOS
STL
12h 38m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 27
STL
BOS
6h 14m
Tue, May 1
BOS
STL
4h 43m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14207 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
LGA
YUL
Excellent 8.0

it was easy to navigate .

SEA
LAX
Okay 4.0

Nothing, they didn’t care about you or to help, the llady was so rude and unfriendly, this situation ruin my whole trip

I call in advance to paid the fees for baggage, I call Aeromexico because was the main airline for the fly, but Delta at Seattle made me paid again the fees for baggage’s even by phone they said that I didn’t need to paid. BE AWARE AND CAREFUL BECAUSE THE LADIES IN THE FRONT DESK didn’t even look the paperwork that you have in hand, they only want to charge you saying that your payment thru Aeromexico didn’t help you in the 1st fly. How this can happen when Delta and Aeromexico are two subsidiary one of another ?

MCO
YYZ
Excellent 8.3

On time as scheduled.

N/A

JFK
SFO
Excellent 10.0

Seats were comfortable ... enough. Boarding process, once underway allowed me to get overhead bin and stash my other luggage in the seat below me. Flight wasn't overly booked (85-95%) so there appeared to be room for others to stretch out. Now about that crying kid...

Ugh. Weather delays. The flight was scheduled to board about 7P but it arrived late and they had to not only unload the self-loading cargo, but clean up afterwards. Would be nice to get a better estimate as to how long it would take to board so that I could hang out in the lounge. In addition, departure from JFK was delayed as well, either we missed the IFR window or got stuck behind some traffic and I fell asleep on the plane only to wake up what seemed an hour later just getting ready to hit V1. No upgrade.

MFR
SLC
Okay 4.6

Not sure who thought every passenger is 5'6 but for the rest of us, the seat pitch is ridiculously close. Like knees to the seat in front close. I'm 5'10 and I was very uncomfortable the entire flight.

See above

Wed, May 16
STL
BOS
4h 55m
Sun, May 20
BOS
STL
4h 59m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25986 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BOS
JFK
Good 6.0

No hassle of changing terminals in JFK, no bagagge claim, AA check-in-this time, was a "good luck"....Connection in Helsinki, very quik!

Finnair flight AY06 are old aircrafts. Every other in-seat monitor was out of order, flight attendants could not do much. That created mess for passengers, trying to move their seats to the ones with working monitors.....

MCO
MIA
Mediocre 2.0

Flight got canceled for over a week.

GIG
JFK
Okay 4.6

Nice crew

I booked a LATAM flight for a 10.5 hour flight specifically because they have better in flight entertainment. I arrived at the airport and found it it was operated by AA. 10.5 hours with zero in flight entertainment. HORRIBLE EXPERIENCE.

DFW
TPA
Excellent 10.0

Timing of flight routes

Sat on a pillow

LAX
PHL
Excellent 10.0

A great flight

No real food to eat

Sun, Jan 14
STL
BOS
11h 04m
Wed, Jan 17
BOS
STL
12h 21m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 7
STL
BOS
9h 21m
Fri, Feb 9
BOS
STL
12h 38m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 1
STL
BOS
7h 25m
Mon, Jun 4
BOS
STL
8h 05m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14207 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SEA
LAX
Okay 4.0

Nothing, they didn’t care about you or to help, the llady was so rude and unfriendly, this situation ruin my whole trip

I call in advance to paid the fees for baggage, I call Aeromexico because was the main airline for the fly, but Delta at Seattle made me paid again the fees for baggage’s even by phone they said that I didn’t need to paid. BE AWARE AND CAREFUL BECAUSE THE LADIES IN THE FRONT DESK didn’t even look the paperwork that you have in hand, they only want to charge you saying that your payment thru Aeromexico didn’t help you in the 1st fly. How this can happen when Delta and Aeromexico are two subsidiary one of another ?

LGA
YUL
Excellent 8.0

it was easy to navigate .

IND
DTW
Okay 4.0

No wifi couldn’t do any work

Was looking forward to completing some work but the wifi never came on.

SLC
SNA
Excellent 8.0

Comfortable seats in coach Good snacks Friendly crew

Nothing

SLC
SJC
Excellent 9.6

As always, the crew and amenities were first rate.

We were initially told that our flight would arrive early. Then we sat on the tarmac for a half hour before anyone could be bothered to tell us we were waiting for the plane to be de-iced.

Thu, Jun 21
STL
BOS
5h 46m
Thu, Jun 28
BOS
STL
7h 26m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14207 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
YYZ
YQB
Okay 5.0

They had to change tires before we lelt in Toronto. And we spent more than one hour on the tarmac.

SFO
DTW
Okay 4.0

Arrived.

Late, slow, de-icing in Detroit took nearly an hour!

ATL
MEX
Excellent 8.6

Sandwich for dinner

JFK
SFO
Excellent 10.0

Seats were comfortable ... enough. Boarding process, once underway allowed me to get overhead bin and stash my other luggage in the seat below me. Flight wasn't overly booked (85-95%) so there appeared to be room for others to stretch out. Now about that crying kid...

Ugh. Weather delays. The flight was scheduled to board about 7P but it arrived late and they had to not only unload the self-loading cargo, but clean up afterwards. Would be nice to get a better estimate as to how long it would take to board so that I could hang out in the lounge. In addition, departure from JFK was delayed as well, either we missed the IFR window or got stuck behind some traffic and I fell asleep on the plane only to wake up what seemed an hour later just getting ready to hit V1. No upgrade.

SLC
SNA
Excellent 8.0

Comfortable seats in coach Good snacks Friendly crew

Nothing

Sat, Dec 16
STL
BOS
6h 16m
Tue, Dec 19
BOS
STL
12h 15m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 1
STL
BOS
7h 11m
Tue, Mar 6
BOS
STL
12h 21m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 22
STL
BOS
5h 16m
Tue, May 29
BOS
STL
10h 47m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
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*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.