Cheap flights from Boston to St. Louis from $127
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to St. Louis departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.Easily compare round-trip flights from Boston to St. Louis
Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Boston to St. Louis by changing tabs
Find the cheapest one-way flights from Boston to St. Louis
If you're looking for one-way flights from Boston to St. Louis, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Search last-minute flights to St. Louis from Boston
Find and compare round-trip flight prices for your last-minute flight from Boston to St. Louis
Best airlines flying from Boston to St. Louis
Compare and see reviews for airlines that fly from Boston to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $102 | Free Cancellation | Rating 6.3 4,135 reviews | |||
| PriceFrom $147 | Free Cancellation | Rating 6.4 8,754 reviews | |||
| PriceFrom $197 | Free Cancellation | Rating 8.0 11,004 reviews | |||
| PriceFrom $278 | Free Cancellation | Rating 7.3 14,898 reviews | |||
| PriceFrom $321 | Free Cancellation | Rating 7.4 11,255 reviews | |||
| PriceFrom $366 | Free Cancellation | Rating 8.0 9,110 reviews | |||
| PriceFrom $439 | Free Cancellation | Rating 7.6 4,624 reviews |
JetBlue Flights From Boston to St. Louis
JetBlue operates around 13 flights from Boston to St. Louis every week. The average price of these flights found in the last 72 hours has been $545, but momondo users have found JetBlue deals from Boston to St. Louis from as low as $439 round-trip. JetBlue has been scored 7.6/10 in 4,624 reviews.
American Airlines Flights From Boston to St. Louis
The best American Airlines deal for Boston to St. Louis flight tickets found on momondo in the last 72 hours was $278, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $450 round-trip. American Airlines operates 13 flights out of Boston into St. Louis in an average week, so prices vary by time and availability. 14,898 American Airlines reviews by users on momondo have scored the airline at 7.3/10.
Delta flights from Boston to St. Louis
Our best Delta deals on Boston to St. Louis flight tickets
Frontier flights from Boston to St. Louis
Our best Frontier deals on Boston to St. Louis flight tickets
How to get the cheapest flight ticket from Boston to St. Louis
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 from Boston to St. Louis?
February. The cheapest time of year to fly to St. Louis from Boston is February. Most expensive is November
What is the cheapest day to depart Boston for St. Louis?
Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Monday
When is the cheapest time to fly from Boston to St. Louis?
In the evening. Boston to St. Louis flights are approximately 21% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to St. Louis from Boston?
Spirit Airlines. Alaska Airlines, American Airlines, and Delta are the most popular carriers operating from Boston to St. Louis
What is the cheapest Boston to St. Louis flight route?
Boston Logan Intl - Lambert-St Louis. Fly from Boston Logan Intl to Lambert-St Louis for the best Boston - St. Louis flight prices
How far in advance should you book Boston to St. Louis flights?
34 days before. The cheapest time to buy a flight from Boston to St. Louis is approximately 34 days to departure
How many flights depart from Boston to St. Louis on average per day?
As of April 2024, there are 5 flights per week flying from Boston to St. Louis. The most common time of day flights depart is 6:00AM, with 78% of flights taking off at noon.
How many flights depart from Boston to St. Louis on average per week?
40 flights are operational weekly from Boston to St. Louis as of April 2024. The most popular departure day for this route is Sunday, with 18% of flights per week taking off on this day.
Can stopping save me money on Boston to St. Louis flights?
You could potentially save up to 58% on your flight if you consider stops on a Boston to St. Louis flight.
Cheap Boston to St. Louis (BOS to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to St. Louis
Best Price Found | $133 |
|---|---|
Fastest flight time | 2h 58m |
Direct flights | Every day |
Airports in St. Louis | 1 airport |
How far is Boston Logan Intl to Lambert-St Louis by plane?
Lambert-St Louis is 1035.0 mi away from Boston Logan Intl. Flights usually cover this in 2h 58m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Lambert-St Louis Airport?
Prices for flights from Boston Logan Intl Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to Lambert-St Louis Airport?
As of April 2024, there are 7 operators available to choose from for flights from Boston Logan Intl Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Boston Logan Intl Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from Boston to St. Louis?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to St. Louis for you.
Can I find flights from Boston to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Boston to St. Louis?
momondo helps you find the best flight between Boston and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Boston to St. Louis right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to St. Louis from Boston. 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.