Cheap flights from St. Louis, MO to Boston, MA
Choose between Frontier Airlines, Spirit Airlines, or JetBlue Airways to find the best price
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Boston
Most popular airline | Frontier Airlines |
---|
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Sorry, we couldn't find any results
Sorry, we couldn't find any results
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Frontier Airlines, Spirit Airlines, JetBlue Airways, United Airlines, and Southern Airways Express. St. Louis and Boston have 217 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from St. Louis to Boston in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 28.04 - Sat 04.05
Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
---|---|---|---|---|---|---|---|
--- | 1 | 1 | --- | --- | --- | --- |
Weekly direct flights for Sun 05.05 - Sat 11.05
Airline | Sun 05.05 | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 |
---|---|---|---|---|---|---|---|
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Sun 12.05 - Sat 18.05
Airline | Sun 12.05 | Mon 13.05 | Tue 14.05 | Wed 15.05 | Thu 16.05 | Fri 17.05 | Sat 18.05 |
---|---|---|---|---|---|---|---|
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Sun 19.05 - Sat 25.05
Airline | Sun 19.05 | Mon 20.05 | Tue 21.05 | Wed 22.05 | Thu 23.05 | Fri 24.05 | Sat 25.05 |
---|---|---|---|---|---|---|---|
--- | --- | --- | 1 | --- | --- | --- |
Check-in for a flight from St. Louis to Boston
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
United Airlines | UAL | UA | Yes | No |
Southern Airways Express | FDY | 9X | Yes | No |
Weather in Boston
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 2°C | -4°C |
February | 3°C | -3°C |
March | 7°C | 0°C |
April | 13°C | 5°C |
May | 19°C | 10°C |
June | 23°C | 14°C |
July | 27°C | 18°C |
August | 27°C | 18°C |
September | 23°C | 14°C |
October | 17°C | 9°C |
November | 10°C | 3°C |
December | 5°C | 0°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from St. Louis
- Flights from St. Louis to Las Vegas
- Flights from St. Louis to Los Angeles
- Flights from St. Louis to Denver
- Flights from St. Louis to Orlando
- Flights from St. Louis to Atlanta
- Flights from St. Louis to Minneapolis
- Flights from St. Louis to San Diego
- Flights from St. Louis to San Francisco
- Flights from St. Louis to London
- Flights from St. Louis to Phoenix
- Flights from St. Louis to Seattle
- Flights from St. Louis to Houston
- Flights from St. Louis to Sacramento
- Flights from St. Louis to New York
- Flights from St. Louis to Cancún
- Flights from St. Louis to Washington, D.C.
- Flights from St. Louis to Fort Lauderdale
- Flights from St. Louis to Oakland
- Flights from St. Louis to Tampa
- Flights from St. Louis to Paris
Flights to Boston
- Flights from London to Boston
- Flights from Orlando to Boston
- Flights from Denver to Boston
- Flights from Paris to Boston
- Flights from Barcelona to Boston
- Flights from Rome to Boston
- Flights from Raleigh to Boston
- Flights from Amsterdam to Boston
- Flights from Munich to Boston
- Flights from Miami to Boston
- Flights from Washington, D.C. to Boston
- Flights from Madrid to Boston
- Flights from Athens to Boston
- Flights from Los Angeles to Boston
- Flights from Dublin to Boston
- Flights from Fort Lauderdale to Boston
- Flights from Austin to Boston
- Flights from Atlanta to Boston
- Flights from Milan to Boston
- Flights from San Francisco to Boston
Popular routes
- Flights from Los Angeles to Mexico City
- Flights from Shanghai to Honolulu
- Flights from Los Angeles to Paris
- Flights from Fort Lauderdale to Milwaukee
- Flights from Glasgow to San Francisco
- Flights from León to Dallas
- Flights from New York to Athens
- Flights from Las Vegas to Copenhagen
- Flights from Iloilo City to Puerto Princesa
- Flights from Chicago to Omaha
- Flights from New Delhi to Vadodara
- Flights from Kota Kinabalu to Sandakan
- Flights from Singapore to Luang Prabang
Airports near St. Louis
- St. Louis Lambert International
- General Wayne A. Downing Peoria International
- Abraham Lincoln Capital
- Evansville Regional
- Barkley Regional
- Central Illinois Regional
- Waynesville-St. Robert Regional
- MidAmerica St. Louis
- Cape Girardeau Regional
- Williamson County Regional