Flights from St Louis to Boston, United States

Did you mean flights from Boston to St Louis?

St Louis to Boston Last modified: Mar 26, 2024 18:36 -04:00

We've scanned 117,220,093 round trip itineraries and found the cheapest flights to Boston. Major Airlines & American frequently offer the best deals to Boston flights, or select your preferred carrier below to see the cheapest days to fly.

Major Airlines
Mon 4/15
1 stop
Mon 4/29
1 stop
Wed 7/3
1 stop
Thu 7/4
1 stop
Wed 5/15
1 stop
Thu 5/16
1 stop
Tue 4/16
1 stop
Tue 4/30
1 stop
Multiple Airlines
Tue 3/26
1 stop
Sun 3/31
1 stop

How Much is a Flight from St Louis to Boston?

We have collected flight cost data from across the web for travel from St Louis to Boston, and have found the average flight price for this trip to be $166.

Where To Buy Cheap Flights from St Louis to Boston?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from St Louis to Boston based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from St Louis to Boston?

The chart below shows up-to-date information regarding how far in advance to book your flight from St Louis to Boston.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $640 $439
7-14 days $392 $196
14-21 days $235 $196
21-30 days $159 $196
30-60 days $159 $196
60-90 days $159 $196
90+ days $345 $196

Cheapest Day To Fly from St Louis to Boston

We've examined 234,440,186 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from St Louis to Boston is Sunday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$159$159$159$159$196 $159

Cheap Last Minute Flights from St Louis to Boston

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from St Louis to Boston. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

7 8 9 10 11 12 13
14 15 16 17 18 19 20
$602 $263
21 22 23 24 25 26 27
$263 $196
28 29 30 31 1 2 3
$196 $159
4 5 6 7 8 9 10
$159 $159
11 12 13 14 15 16 17

Connecting Flights vs Direct Flights from St Louis to Boston

Looks like something's not right... we're not seeing expected schedules from St Louis to Boston. Run an airfare search now to update and compare prices. Find Flights

One Way Flights vs Round Trip Flights from St Louis to Boston

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Boston. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison. Find Flights

St Louis to Boston Flight Questions

St Louis to Boston Airports

These are the major commercial airports we're currently monitoring in St Louis and Boston. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap Flights from St Louis to Boston