Popular in | June |
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Cheapest in | February |
Round-trip from | $318 |
One-way from | $127 |
Sunday flights are found to be more expensive to fly from Boston to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.
To save up to 87% on this flight, we recommend booking at least 30 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Boston to St. Louis from $554 1-2 weeks out and tickets from $644 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from Boston in February are about $443 on average during February, but can be found for as low as $158.
It’s typically best to fly out from Boston to St. Louis at noon. Doing so could potentially save you 16% on the flight price compared to flying in the afternoon, which is usually more expensive.
Fly from
Fly to
Budget
$146 - $315
Route
Depart
Return
Price
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Wed 9/18
1 stop29h 11m
Lambert-St Louis
Tue 9/24
1 stop16h 54m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Wed 7/31
1 stop9h 10m
Lambert-St Louis
Sat 8/3
1 stop8h 18m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Fri 7/12
1 stop9h 10m
Lambert-St Louis
Mon 7/15
1 stop11h 36m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Sat 9/7
1 stop11h 10m
Lambert-St Louis
Wed 9/11
1 stop6h 22m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Tue 9/17
1 stop11h 10m
Lambert-St Louis
Fri 9/20
1 stop13h 31m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Mon 7/1
1 stop8h 14m
Lambert-St Louis
Wed 7/3
1 stop8h 00m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Tue 6/18
1 stop5h 56m
Lambert-St Louis
Tue 7/9
1 stop6h 21m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Thu 7/4
1 stop4h 48m
Lambert-St Louis
Thu 7/11
1 stop7h 08m
Boston Logan IntlLambert-St Louis
BOS - STL
BOSSTL
Boston Logan Intl
Thu 10/10
1 stop24h 05m
Lambert-St Louis
Sun 10/13
1 stop15h 10m
STL Temperature | 32 - 80.6 °F |
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If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Boarding
Overall
Comfort
Entertainment
Food
Crew
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Frontier | Cheapest$103 | Average$197 | FlexibilityNo cancel fee | On-time62% |
Spirit Airlines | Cheapest$146 | Average$237 | FlexibilityNo cancel fee | On-time65% |
Delta | Cheapest$197 | Average$406 | FlexibilityNo cancel fee | On-timeN/A |
American Airlines | Cheapest$282 | Average$446 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$313 | Average$509 | FlexibilityNo cancel fee | On-time69% |
Alaska Airlines | Cheapest$366 | Average$535 | FlexibilityNo cancel fee | On-time75% |
JetBlue | Cheapest$442 | Average$519 | FlexibilityNo cancel fee | On-time62% |
1%of flight departures | Early morningMidnight to 6 am |
---|---|
55%of flight departures | Morning6 am to noon |
44%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 7daily flights |
---|---|
Monday | 6daily flights |
Tuesday | 6daily flights |
Wednesday | 6daily flights |
Thursday | 6daily flights |
Friday | 6daily flights |
Saturday | 3daily flights |