Cheap flights from St Louis to Boston (STL - BOS)

Flight FAQs

From St Louis to Boston

Are flight prices decreasing from St Louis to Boston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Boston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Lambert-St Louis to Boston Logan Intl to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Some of the new policies that have been implemented to accommodate travelers flying from Lambert-St Louis to Boston Logan Intl are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Lambert-St Louis to Boston Logan Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Boston Logan Intl have new flexible policies in place due to COVID-19. American Airlines, Delta, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from St Louis to Boston for under $100 on Cheapflights?

Yes, there are multiple flights from St Louis to Boston for under $100. The cheapest flight booked recently is on Frontier for just $88, but on average you can expect to pay $153.

Are there nonstop flights from St Louis to Boston for under $100 on Cheapflights?

There are no nonstop flights from St Louis to Boston, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from St Louis to Boston for under $200?

There are currently 20+ open flights from St Louis to Boston within the next 7 days for less than $200.

How popular is this flight route?

Within the past month, 51 users have taken a look at flights from Lambert-St Louis to Boston Logan Intl.

Does it rain more in St Louis or Boston?

St Louis will have less rainfall in 2 compared to Boston over the next 12 days.

Is St Louis weather warmer or cooler than Boston?

You can imagine temperatures to be in the 90 °F range in July. The weather in Boston is generally colder than St Louis's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from St Louis to Boston?

Airlines like Frontier and Major Airline fly from St Louis to Boston in about 7h 17m. The time it takes to get you to your destination can typically vary by up to 6h 28m. This flight may include one or multiple stops.

What are the cheapest airlines flying from St Louis to Boston round-trip?

Frontier, at $88, was found to be the cheapest airline from St Louis to Boston. An alternate airline flying to your destination would be Major Airline. Frontier is priced at 60% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from St Louis to Boston one-way?

The cheapest airlines for a one-way flight from St Louis to Boston are Frontier ($50), Major Airline ($123), and Delta ($140).