Cheap Flights from Boston to St Louis

Compare Boston Logan International to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

Book the best St Louis fare with no extra fees

Flight deals from Boston Logan International to St Louis

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to St Louis? Find the lowest prices on one-way and return tickets right here.

St Louis.$388 per passenger.Departing Tue, 10 Sep, returning Tue, 24 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Tue, 10 Sep, arriving in St Louis.Inbound indirect flight with Delta, departs from St Louis on Tue, 24 Sep, arriving in Boston Logan International.Price includes taxes and charges.From $388, select.

St Louis.$514 per passenger.Departing Sat, 31 Aug, returning Mon, 2 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Sat, 31 Aug, arriving in St Louis.Inbound indirect flight with Delta, departs from St Louis on Mon, 2 Sep, arriving in Boston Logan International.Price includes taxes and charges.From $514, select.

St Louis.$572 per passenger.Departing Sat, 11 May, returning Tue, 14 May.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Boston Logan International on Sat, 11 May, arriving in St Louis.Inbound indirect flight with Spirit Airlines, departs from St Louis on Tue, 14 May, arriving in Boston Logan International.Price includes taxes and charges.From $572, select.

St Louis.$593 per passenger.Departing Fri, 6 Dec, returning Sun, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Fri, 6 Dec, arriving in St Louis.Inbound indirect flight with Delta, departs from St Louis on Sun, 8 Dec, arriving in Boston Logan International.Price includes taxes and charges.From $593, select.

Stay one step ahead. Find the best value travel with the latest deals, tips and news.

Find the cheapest month to fly from Boston Logan International to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to St Louis flights are currently cheapest in September.

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Direct flights from Boston Logan International to St Louis

Southwest Airlines

Boston Logan International to St Louis: Alternative routes

Compare routes from Boston Logan International to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Boston to St Louis: Flight information

The things to know before you go.

Cheapest flight found	$388
Cheapest month to fly	September
Average flight time	3 hrs, 7 mins
Most popular airline	Southwest Airlines
Average flights per week	57

Finding cheap flights from Boston Logan International to St Louis: Frequently asked questions

: The best price we found for a return flight from Boston Logan International to St Louis is $388. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
: 3 hours and 7 minutes is the average flight time from Boston Logan International to St Louis.
: Southwest Airlines, American Airlines and Envoy Air fly direct from Boston Logan International to St Louis.
: As of April 2024, there are 57 flights per week flying from Boston Logan International to St Louis.
: The cheapest month to fly from Boston Logan International to St Louis is usually September.
: After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to St Louis Airport on Tuesday, 10 September 2024.
: Yes – the average flight time is 3 hours and 7 minutes.
: We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
: We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
: Currently, Delta offers the cheapest flight tickets to St Louis.

How to find cheap flights to St Louis (STL) from Boston (BOS) in 2024

Looking for cheap tickets from Boston Logan International to St Louis? Return tickets start from $388 and one-way flights to St Louis from Boston Logan International start from $152

Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Boston Logan to St Louis. And with us there are no hidden fees - what you see is what you pay.
Compare flight deals to St Louis from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to St Louis start from $152 one-way.
Flex your dates to find the best BOS-STL ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to St Louis from Boston Logan International.
Set up a Price Alert. You can easily track the fare of your cheap Boston Logan-St Louis flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Boston Logan International and St Louis? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results. Airlines that fly direct include: Southwest Airlines
American Airlines
Envoy Air
Qatar Airways
Republic Airways
Flexible on when you travel? The cheapest month to fly from Boston Logan International to St Louis is September.
Find the cheapest Business class flights from Boston Logan International and St Louis. We scour the internet for the best Business, Premium Economy and First Class flight fares to St Louis, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Boston Logan International to St Louis flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Boston Logan International and St Louis whenever you want.

Combine your flight to St Louis from Boston Logan International with hotels and car hire

Once you've secured your cheap flight ticket from Boston Logan International to St Louis, discover the best prices and exclusive rates for hotels in St Louis or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.

Plan the rest of your trip from Boston to St Louis

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.