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STL - BOS

Find cheap flights from St. Louis to Boston from $55

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Boston departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 5/16
Thu 5/23

Search hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Boston.
In the last 7 days travelers have searched 43,990,755 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from St. Louis to Boston (STL-BOS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:56 pm - 9:26 amSTL-BOS
14h 30m1 stop
9:49 am - 7:08 amBOS-STL
22h 19m1 stop
$100Frontier
Find Deal
Wed, May 15 - Sat, May 18
9:53 pm - 8:08 amSTL-BOS
9h 15m1 stop
9:08 am - 3:37 pmBOS-STL
7h 29m1 stop
$107Frontier
Find Deal
Wed, May 8 - Sat, May 11
7:30 pm - 8:04 amSTL-BOS
11h 34m1 stop
10:12 pm - 10:40 amBOS-STL
13h 28m1 stop
$225Spirit Airlines
Find Deal
Sun, Apr 28 - Fri, May 3
10:34 am - 11:47 pmSTL-BOS
12h 13m1 stop
11:27 am - 9:39 amBOS-STL
23h 12m2 stops
$229Spirit Airlines
Find Deal
Tue, May 14 - Mon, May 27
7:00 pm - 10:40 pmSTL-BOS
2h 40mnonstop
5:45 am - 12:59 pmBOS-STL
8h 14m1 stop
$254American Airlines
Find Deal
Tue, Aug 20 - Tue, Aug 27
10:30 am - 2:19 pmSTL-BOS
2h 49mnonstop
2:07 pm - 9:47 pmBOS-STL
8h 40m1 stop
$267American Airlines
Find Deal
Wed, May 8 - Sat, May 11
5:29 pm - 11:29 pmSTL-BOS
5h 00m1 stop
9:00 am - 2:19 pmBOS-STL
6h 19m1 stop
$330Delta
Find Deal
Sat, May 25 - Tue, May 28
6:00 am - 1:18 pmSTL-BOS
6h 18m1 stop
10:00 am - 2:30 pmBOS-STL
5h 30m1 stop
$336Delta
Find Deal
Wed, Jun 26 - Wed, Jul 3
6:08 am - 2:16 pmSTL-BOS
7h 08m1 stop
9:00 am - 3:40 pmBOS-STL
7h 40m2 stops
$453United Airlines
Find Deal
Fri, Jun 28 - Mon, Jul 1
6:02 am - 12:14 pmSTL-BOS
5h 12m1 stop
10:22 am - 3:49 pmBOS-STL
6h 27m1 stop
$470United Airlines
Find Deal
Sun, Sep 29 - Sat, Oct 5

Flights from St. Louis to Boston - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Boston to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Boston?

The average price of all flights from St. Louis to Boston clicked on KAYAK for each day over the last 12 months.
For St. Louis to Boston, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Boston back to St. Louis, the best deals are generally found on Tuesday, with Monday being the most expensive.

What is the cheapest month to fly from St. Louis to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Boston is January, where tickets cost $367 on average. On the other hand, the most expensive months are June and April, where the average cost of tickets is $471 and $456 respectively.

How far in advance should I book a flight from St. Louis to Boston?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Boston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 83 days before departure.

Which airlines provide the cheapest flights from St. Louis to Boston?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from St. Louis to Boston found on KAYAK was with Frontier for $55. Frontier proposed a round-trip connection from $100 and Spirit Airlines from $225.

Which airlines fly non-stop between St. Louis and Boston?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Boston.
There are 2 airlines that fly nonstop from St. Louis to Boston. They are American Airlines and Southwest. The cheapest airline for this route is American Airlines, with the best one-way deal found costing $226. On average, the best prices for this route can be found at American Airlines.

How many flights are there between St. Louis and Boston per day?

Each day, there are between 3 and 7 nonstop flights that take off from St. Louis and land in Boston, with an average flight time of 2h 39m. The most common departure time is 10:00 am and most flights take off in the morning. Each week, there are 44 flights. The most frequent day of departure is Friday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between St. Louis and Boston?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Boston take?

The average nonstop flight takes 2h 30m, covering a distance of 1,043 miles.

What’s the earliest departure time from St. Louis to Boston?

Early birds can take the earliest flight from St. Louis at 8:00 am and will be landing in Boston at 11:35 am.

What’s the latest departure time from St. Louis to Boston?

If you prefer to fly at night, the latest flight from St. Louis to Boston jets off at 8:55 pm and lands at 12:25 am.

Good to know

Low season

January

High season

October

Cheapest flight

$55
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from St. Louis to Boston

When to book flights from St. Louis to Boston

Are your dates flexible? Find out the best times to travel from St. Louis to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Boston

  • Which facilities at BOS airport are convenient for traveling mothers?

    BOS airport has Mamava Suites and nursing rooms dedicated to traveling mothers. You can change your baby's diaper in the nursing rooms beside each restroom of Terminal A. Mothers looking for private spaces to feed their babies or pump breasts can check out Mamava Suites inside Terminal B.

  • Where can I eat or grab a snack at BOS airport?

    BOS airport hosts multiple food stations, cafés, and restaurants inside each terminal. Visit Berkshire Farms Market in Terminal A if you need lunch or breakfast. This restaurant offers vegan and vegetarian dishes. Those in a hurry can pass by Green Express in Terminal C for grab-and-go service. For snacks, check out Dunkin' on the Arrivals of Terminal C.

  • Does STL airport provide religious services to its travelers?

    Yes. STL airport has a religious facility called St. Louis Interfaith Chapel. If you need a private and quiet space at the airport to meditate, pray, or conduct a mass, go to the interfaith chapel. Scheduled Muslim prayers, Protestant services and Catholic mass are available here daily. It is located near E33 on the airside of Terminal 2.

  • Which pet facilities are accessible at STL airport?

    STL airport has pet relief areas where you can take your furry friend to stretch and hydrate before the flight. There are outdoor pet relief areas outside Terminal 1 next to exit 6 and next to exit 15 of Terminal 2. If you prefer indoor relief areas go to Concourses A and C of T1 or Concourse E of T2.

  • What is the cheapest flight from St. Louis to Boston?

    In the last 3 days, the lowest price for a flight from St. Louis to Boston was $55 for a one-way ticket and $100 for a round-trip.

  • Do I need a passport to fly between St. Louis and Boston?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Boston?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Boston, also known as Boston Logan Intl.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Boston?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Boston flight route: American Airlines, JetBlue, Breeze Airways, Iberia, Delta, British Airways, and Finnair.

  • Which aircraft models fly most regularly from St. Louis to Boston?

    The Embraer 175 is the aircraft model that flies most regularly on the St. Louis to Boston flight route.

  • Which airline alliances offer flights from St. Louis to Boston?

    oneworld is the only airline alliance operating flights between St. Louis and Boston.

  • On which days can I fly direct from St. Louis to Boston?

    There are nonstop flights from St. Louis to Boston on a daily basis.

  • Which is the best airline for flights from St. Louis to Boston, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Boston are Delta and United Airlines. With an average price for the route of $412 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $466 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from STL to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $195 or less one-way and $480 or less round-trip.
  • Disabled travelers flying out of St. Louis can consider booking their flights at Lambert St. Louis International Airport (STL). The airport has enhanced accessibility to accommodate travelers with special needs. Inside the airport’s terminals are elevators, visual and audible signs, automatic doors and braille signage. Adapted telephones and wheelchair-accessible toilets are also available throughout the airport. The airlines offer wheelchair service.
  • STL airport is a family-friendly airport. Here you will find an International Play Port managed by The Magic House St. Louis Children's Museum near gate C3. This play area features a kids' version of the MetroLink light rail train, kid-sized plane, and air traffic control tower. Take your kids to the port to burn all their energy while waiting for the flight.
  • STL airport hosts a USO lounge called The James S. McDonnell USO in Terminals 1 and 2 designated for US military members flying out through the airport. Sleep areas, a computer center, and free luggage storage are available in this lounge. Other lounges at STL airport are Wingtips Lounge on the airside of Terminal 2 and the American Airlines lounge called Admirals Club on the airside between Concourses B and C.
  • Boston Logan International Airport (BOS) is an ideal landing airport for corporate travelers since it hosts on-site hotels, including the Hilton Boston Logan Airport Hotel, connected to the terminals through a sky bridge and Hyatt Regency Boston Harbor. These hotels have a business center, meeting rooms, and conference facilities. You can checkin at any hotel to catch up with your work or hold meetings.
  • Travelers flying in through BOS airport need not worry about how they will get to their various destinations since the airport offers convenient ground transportation services. If you are heading to various locations in Boston, including Harvard University and Peabody, take the MBTA buses operating routes 448 and 459 from the terminals. Those heading to the city center can opt for taxis outside each terminal.
See more tips

Prefer to fly non-stop from St. Louis to Boston?

Find which airlines fly direct from Lambert-St Louis to Logan Intl, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Boston Logan Intl

Monday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Tuesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Wednesday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Thursday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Friday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Saturday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

Sunday

American Airlines, Iberia, Qatar Airways, +1 more

American Airlines, Iberia, +2 more

See more direct flights

Nonstop returns

Boston Logan Intl to Lambert-St Louis

Monday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Tuesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Wednesday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Thursday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Friday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Saturday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

Sunday

American Airlines, Qatar Airways, Southwest

American Airlines, Qatar Airways, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Boston

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11123 reviews
8.2boarding
8.0entertainment
7.5food
8.6crew
7.9comfort
Airline reviews

It was a crowded flight. They did the best they could.

6.0 GoodNetty, Apr 2024SYR - JFK
Read more about Delta reviews

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

Terrible. Delta delays caused us to miss our flight and they did nothing to fix it.

The A330-200 was showing its age but otherwise this was a pleasant flight with friendly crew. The meals/snack provided were pretty good.

The most unprofessional and disorganized experience I’ve ever had with an airlines. After the flight was diverted on the runway and we returned to the gate, there was no communication about the plans and it took an additional 5 hours to get set up with a hotel and a new flight, information that was not readily given to the passengers and mostly gotten second hand from what other passengers heard from each other. Based on this experience I cannot recommend flying delta again

Delayed by almost an hour - I also noticed that all JetBlue flights departing from PBI were delayed yet the weather was perfect.

I loved the wifi, much better than Delta. Seats were old. and bathrooms dingy.

There was no wheelchair or wheelchair escort at the gate..unacceptable

Delayed 4 hours because of maintenance issue they knew about all day. Get another plane. Time is precious!

I liked that boarding and take off were timely despite a 15 minute delay due to weather. The pilot communicated with us the entire flight keeping us informed re: turbulance and slight delays on the runway after we landed.

Has been always great except flight cancelation in the past at very last minute waiting till 2am and we when have to beg for overnight accommodation

There were weather issues and coding problems whatever those refer to, but JetBlue, for two days in a row was unbelievably late. Several hours late, resulting in almost no sleep for passengers like me.

The plane was very hot. There were delays . Generally, the flight was great.

If jet blue is going to offer tv at every seat, fix the headphone connection so you can hear. Haven’t had a usable headphone jack in years

Plane is old and seats are worn. Add to it the plane was dirty. No plugs for laptop.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

I liked everything about the flight. The service was excellent!

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

The flight was delayed instead of leaving at 11 it left at 12.20

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

On the new 319 NEO? seatback entertainment system did not work even when the flight attendant rebooted it. At least I had my cell phone to connect with wifi.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Do not eat the bagel! Otherwise, good albeit late, breakfast in first. Boarding downgrade only because flight was delayed due to plane change due to undisclosed problem with original aircraft. I did not use entertainment.

Because I can’t stand very long in one place, I was allowed to reword.

It was a good flight. Of course it was full, but it went well.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

The flight was fine. All the delays and poor communication and customer service were the worst! We were supposed to arrive in London at 7:10 am. In stead we arrived at 1:30 pm. And now American Airlines refuses to make things right but only sent a canned apology after I contacted customer relations.

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Terrible. Seats are bad and the baggage policy is inconsistent

Flight delayed 3 times, resulting in late arrival, rental car place gave car away resulting in increased BS charges because I was late. Frontier blows.

I paid for extra leg room. The flimsy plastic seat underneath the floatation seat did not line up with the arm rests. It seemed as if the plastic part was zip tied on but immovable. This caused severe uncomfortable for the duration of the flight.

Left Denver late, then sat on tarmac 30 min after arrival

Better than I expected but I did pay for a seat and carry on bags ahead of time.

Crew members are very rude and not cooperate with passengers.

30 minute delay due to boarding and settling of a family.

Book cheap flights from St. Louis to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Boston found on KAYAK in the last 72 hours.
5/16Thu
1 stopFrontier
12h 20mSTL-BOS
$55
5/11Sat
1 stopFrontier
14h 31mSTL-BOS
$59
5/21Tue
1 stopSpirit Airlines
12h 13mSTL-BOS
$84
5/21Tue
1 stopSpirit Airlines
12h 13mSTL-BOS
$87
5/11Sat
nonstopAmerican Airlines
2h 49mSTL-BOS
$156
7/1Mon
1 stopDelta
5h 30mSTL-BOS
$161
7/10Wed
nonstopAmerican Airlines
2h 38mSTL-BOS
$166
6/29Sat
1 stopDelta
8h 20mSTL-BOS
$195
8/17Sat
2 stopsUnited Airlines
11h 35mSTL-BOS
$239
4/22Mon
1 stopUnited Airlines
6h 06mSTL-BOS
$252

Search by stops

Search by airline

Search by price

Last minute flights from St. Louis to Boston

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Boston that are departing in the next 10 days.
4/18Thu
multi-stopDelta
4h 24mSTL-BOS
4/21Sun
multi-stopDelta
7h 26mBOS-STL
$479
4/19Fri
multi-stopUnited Airlines
5h 10mSTL-BOS
4/21Sun
multi-stopUnited Airlines
5h 22mBOS-STL
$608
4/19Fri
multi-stopUnited Airlines
7h 06mSTL-BOS
4/21Sun
multi-stopUnited Airlines
7h 06mBOS-STL
$630
4/19Fri
multi-stop
24h 27mSTL-BOS
4/21Sun
multi-stop
19h 37mBOS-STL
$682
4/18Thu
multi-stop
22h 50mSTL-BOS
4/21Sun
multi-stop
22h 24mBOS-STL
$696
4/18Thu
multi-stop
13h 28mSTL-BOS
4/21Sun
multi-stop
22h 24mBOS-STL
$697
4/18Thu
multi-stop
14h 04mSTL-BOS
4/21Sun
multi-stop
22h 24mBOS-STL
$699
4/18Thu
multi-stop
13h 28mSTL-BOS
4/21Sun
multi-stop
13h 29mBOS-STL
$700
4/19Fri
nonstopAmerican Airlines
2h 42mSTL-BOS
4/21Sun
nonstopAmerican Airlines
3h 24mBOS-STL
$751
4/19Fri
multi-stopAmerican Airlines
5h 10mSTL-BOS
4/21Sun
nonstopAmerican Airlines
3h 12mBOS-STL
$759

Search by stops

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Search by price

St. Louis - Boston Flights

Departure:

St. Louis (STL)United States

Destination:

Boston (BOS)United States

Return flight deals:

Boston - St. Louis

Cabin classes:

$1,104
$3,599
$1,833
$331