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Cheap flights from St. Louis to Boston from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Boston departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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mié. 5/1
mié. 5/8

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Easily compare round-trip flights from St. Louis to Boston

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 St. Louis to Boston by changing tabs
Frontier
May 11
STL4:37 pmLambert-St Louis
14h 31m
1 stop
BOS8:08 amBoston Logan Intl
May 18
BOS9:49 amBoston Logan Intl
7h 36m
1 stop
STL4:25 pmLambert-St Louis
Spirit Airlines
May 14
STL10:34 amLambert-St Louis
22h 16m
2 stops
BOS9:50 amBoston Logan Intl
May 18
BOS6:10 amBoston Logan Intl
11h 15m
1 stop
STL4:25 pmLambert-St Louis
Multiple Airlines
Jun 4
STL10:34 amLambert-St Louis
12h 13m
1 stop
BOS11:47 pmBoston Logan Intl
Jun 5
BOS9:16 amBoston Logan Intl
22h 52m
1 stop
STL7:08 amLambert-St Louis
American Airlines
May 29
STL10:30 amLambert-St Louis
2h 49m
BOS2:19 pmBoston Logan Intl
May 29
BOS4:01 pmBoston Logan Intl
5h 54m
1 stop
STL8:55 pmLambert-St Louis
Frontier
May 11
STL4:37 pmLambert-St Louis
14h 31m
1 stop
BOS8:08 amBoston Logan Intl
May 18
BOS9:49 amBoston Logan Intl
7h 36m
1 stop
STL4:25 pmLambert-St Louis
Delta
May 29
STL6:00 amLambert-St Louis
7h 19m
1 stop
BOS2:19 pmBoston Logan Intl
Jun 5
BOS7:20 amBoston Logan Intl
5h 28m
1 stop
STL11:48 amLambert-St Louis

Find the cheapest one-way flights from St. Louis to Boston

If you're looking for one-way flights from St. Louis to Boston, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Frontier
May 8
STL9:53 pmLambert-St Louis
9h 15m
1 stop
BOS8:08 amBoston Logan Intl
Spirit Airlines
May 7
STL10:34 amLambert-St Louis
22h 16m
2 stops
BOS9:50 amBoston Logan Intl
American Airlines
May 26
STL9:52 amLambert-St Louis
7h 54m
1 stop
BOS6:46 pmBoston Logan Intl

Search last-minute flights to Boston from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Boston
Frontier
May 2
STL7:16 pmLambert-St Louis
11h 52m
1 stop
BOS8:08 amBoston Logan Intl
May 6
BOS9:08 amBoston Logan Intl
12h 03m
1 stop
STL8:11 pmLambert-St Louis
Spirit Airlines
May 2
STL7:30 pmLambert-St Louis
14h 04m
1 stop
BOS10:34 amBoston Logan Intl
May 7
BOS5:05 amBoston Logan Intl
30h 41m
3 stops
STL10:46 amLambert-St Louis
Multiple Airlines
May 3
STL7:16 pmLambert-St Louis
11h 52m
1 stop
BOS8:08 amBoston Logan Intl
May 10
BOS8:59 pmBoston Logan Intl
14h 29m
1 stop
STL10:28 amLambert-St Louis
Frontier
May 1
STL9:53 pmLambert-St Louis
9h 15m
1 stop
BOS8:08 amBoston Logan Intl
May 4
BOS9:08 amBoston Logan Intl
23h 05m
1 stop
STL7:13 amLambert-St Louis
Delta
May 3
STL10:01 amLambert-St Louis
5h 51m
1 stop
BOS4:52 pmBoston Logan Intl
May 4
BOS5:10 pmBoston Logan Intl
5h 13m
1 stop
STL9:23 pmLambert-St Louis
Frontier
May 3
STL7:16 pmLambert-St Louis
11h 52m
1 stop
BOS8:08 amBoston Logan Intl
May 6
BOS9:08 amBoston Logan Intl
12h 03m
1 stop
STL8:11 pmLambert-St Louis

Best airlines flying from St. Louis to Boston

Compare and see reviews for airlines that fly from St. Louis to Boston with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $106Free CancellationRating
6.3
4,132 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $130Free CancellationRating
6.4
8,746 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $188Free CancellationRating
7.4
11,228 reviews
Search United Airlines flights
DeltaPriceFrom $196Free CancellationRating
8.0
10,966 reviews
Search Delta flights
JetBluePriceFrom $226Free CancellationRating
7.6
4,606 reviews
Search JetBlue flights
American AirlinesPriceFrom $226Free CancellationRating
7.3
14,889 reviews
Search American Airlines flights
  • JetBlue Flights From St. Louis to Boston

    The lowest priced JetBlue flight from St. Louis to Boston from the last 72 hours was $226. Generally, JetBlue has 13 flights on this route every week with an average price of $522. JetBlue is rated 7.6/10 by our users.

  • American Airlines Flights From St. Louis to Boston

    The best American Airlines deal for St. Louis to Boston flight tickets found on momondo in the last 72 hours was $226, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $414 round-trip. American Airlines operates 13 flights out of St. Louis into Boston in an average week, so prices vary by time and availability. 14,889 American Airlines reviews by users on momondo have scored the airline at 7.3/10.


American Airlines flights from St. Louis to Boston

Our best American Airlines deals on St. Louis to Boston flight tickets
American Airlines
May 29
STL10:30 amLambert-St Louis
2h 49m
BOS2:19 pmBoston Logan Intl
May 29
BOS4:01 pmBoston Logan Intl
5h 54m
1 stop
STL8:55 pmLambert-St Louis
American Airlines
Jun 11
STL11:15 amLambert-St Louis
2h 43m
BOS2:58 pmBoston Logan Intl
Jun 11
BOS4:10 pmBoston Logan Intl
5h 46m
1 stop
STL8:56 pmLambert-St Louis
American Airlines
May 22
STL1:40 pmLambert-St Louis
2h 49m
BOS5:29 pmBoston Logan Intl
May 29
BOS8:50 amBoston Logan Intl
8h 27m
1 stop
STL4:17 pmLambert-St Louis

Frontier flights from St. Louis to Boston

Our best Frontier deals on St. Louis to Boston flight tickets
Frontier
May 11
STL4:37 pmLambert-St Louis
14h 31m
1 stop
BOS8:08 amBoston Logan Intl
May 18
BOS9:49 amBoston Logan Intl
7h 36m
1 stop
STL4:25 pmLambert-St Louis
Frontier
May 11
STL4:37 pmLambert-St Louis
14h 31m
1 stop
BOS8:08 amBoston Logan Intl
May 18
BOS9:49 amBoston Logan Intl
7h 36m
1 stop
STL4:25 pmLambert-St Louis
Frontier
May 11
STL4:37 pmLambert-St Louis
14h 31m
1 stop
BOS8:08 amBoston Logan Intl
May 18
BOS11:29 amBoston Logan Intl
20h 39m
2 stops
STL7:08 amLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Boston

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 St. Louis to Boston?

January. The cheapest time of year to fly to Boston from St. Louis is January. Most expensive is June

What is the cheapest day to depart St. Louis for Boston?

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Monday

When is the cheapest time to fly from St. Louis to Boston?

In the afternoon. St. Louis to Boston flights are approximately 14% more expensive at noon than in the afternoon

What is the cheapest airline that flies to Boston from St. Louis?

Frontier. American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Boston

What is the cheapest St. Louis to Boston flight route?

Lambert-St Louis - Boston Logan Intl. Fly from Lambert-St Louis to Boston Logan Intl for the best St. Louis - Boston flight prices

How far in advance should you book St. Louis to Boston flights?

36 days before. The cheapest time to buy a flight from St. Louis to Boston is approximately 36 days to departure

How many flights depart from St. Louis to Boston on average per day?

6 flights are operational weekly from St. Louis to Boston as of April 2024. The most popular departure time for this route is 12:00PM, with 47% of flights per day taking off in the afternoon.

How many flights depart from St. Louis to Boston on average per week?

As of April 2024, there are 43 flights per week flying from St. Louis to Boston. The most common day of the week flights depart is Sunday, with 16% of flights taking off on this day.

Can stopping save me money on St. Louis to Boston flights?

You could potentially save up to 67% on your flight if you consider stops on a St. Louis to Boston flight.

Cheap St. Louis to Boston (STL to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Boston

Best Price Found

$49

Fastest flight time

2h 38m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from St. Louis in the past 72 hours is $49. The best round-trip flight deal from St. Louis to Boston found on momondo in the last 72 hours is $97.
The fastest flight from St. Louis to Boston takes 2h 38m
Direct flights go from St. Louis to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • How far is Lambert-St Louis to Boston Logan Intl by plane?

    Boston Logan Intl is 1035.0 mi away from Lambert-St Louis. By plane, this route typically takes 2h 38m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Boston Logan Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Boston Logan Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Boston?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Boston. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Boston with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Boston from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Boston?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boston from St. Louis.

I’m not ready to book a flight from St. Louis to Boston right now. Can momondo alert me if prices change?

Price alerts on flights to Boston from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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To?
mié. 5/1
mié. 5/8
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