STL - BOS

$119 Find Cheap Flights from St. Louis to Boston - Compare and Save

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 10/22. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$317
Typical prices: $349-$566
American Airlines
Thu 8/27Thu 9/3
STL - BOS • Non-stop
Cheapest non-stop
$317
Typical prices: $373-$576
American Airlines
Wed 9/2Sat 9/12
STL - BOS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Qatar Airways economy includes a free checked bag, adding clear value.
Southwest Cash + Points adds flexibility; American Main Cabin Extra adds perks.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $317 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
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Nonstop flights
You can fly direct with American Airlines and Southwest. Average duration is 2h 37m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $276 (round-trip)
Shortest trip • 4h 30m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 14% price drop
Most popular
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Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Boston

Thu, Aug 27 - Thu, Sep 3
American Airlines Logo
8:00 pm - 11:44 pm
STL
-
BOS
2h 44mnonstop
American Airlines Logo
5:22 pm - 7:30 pm
BOS
-
STL
3h 08mnonstop
$317American Airlines
Wed, Sep 2 - Sat, Sep 12
American Airlines Logo
8:00 pm - 11:44 pm
STL
-
BOS
2h 44mnonstop
American Airlines Logo
11:00 am - 1:03 pm
BOS
-
STL
3h 03mnonstop
$317American Airlines
Wed, Oct 28 - Sat, Oct 31
Southwest Logo
6:30 pm - 10:05 pm
STL
-
BOS
2h 35mnonstop
Southwest Logo
5:15 am - 7:15 am
BOS
-
STL
3h 00mnonstop
$317Southwest
Mon, Aug 24 - Mon, Aug 31
Southwest Logo
7:00 am - 10:35 am
STL
-
BOS
2h 35mnonstop
Southwest Logo
1:10 pm - 3:00 pm
BOS
-
STL
2h 50mnonstop
$317Southwest
Mon, Aug 24 - Mon, Aug 31
Frontier Logo
7:58 pm - 11:47 am
STL
-
BOS
14h 49m
2 stops
Frontier Logo
9:36 am - 5:22 pm
BOS
-
STL
8h 46m
1 stop
$319Frontier
Sat, Oct 24 - Tue, Oct 27
Frontier Logo
10:35 am - 10:52 am
STL
-
BOS
23h 17m
1 stop
Frontier Logo
12:35 pm - 9:40 am
BOS
-
STL
22h 05m
1 stop
$321Frontier
Fri, Oct 9 - Fri, Oct 16
Multiple Airlines Logo
10:35 am - 9:29 am
STL
-
BOS
21h 54m
2 stops
Multiple Airlines Logo
9:15 am - 7:39 pm
BOS
-
STL
11h 24m
1 stop
$324Multiple Airlines
Fri, Sep 4 - Mon, Sep 7
United Airlines Logo
6:53 pm - 1:11 am
STL
-
BOS
5h 18m
1 stop
United Airlines Logo
7:00 pm - 11:38 pm
BOS
-
STL
5h 38m
1 stop
$327United Airlines
Fri, Oct 9 - Sun, Oct 11
Multiple Airlines Logo
10:35 am - 9:29 am
STL
-
BOS
21h 54m
2 stops
Multiple Airlines Logo
9:15 am - 7:39 pm
BOS
-
STL
11h 24m
1 stop
$330Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
8:00 am - 2:07 pm
STL
-
BOS
5h 07m
1 stop
United Airlines Logo
7:05 am - 12:02 pm
BOS
-
STL
5h 57m
1 stop
$333United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Boston flights

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.

How much is a round-trip flight from St. Louis to Boston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Boston departing in August.

Flight prices are below average for this route right now.

Flights to Boston from St. Louis usually cost between $353 and $583 in August.
The lowest price found in the past 5 days was $317 on Southwest (Aug 27-Aug 31).

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

The average price of all round-trip flights from St. Louis to Boston clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Boston, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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 round-trip 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 September, where tickets cost $421 (return) on average. On the other hand, the most expensive months are February and June, where the average cost of round-trip tickets is $704 and $520 respectively.

Can I save money by flying with a layover from St. Louis to Boston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $461 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from St. Louis to Boston, you should book around 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Boston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest and BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low season

February

Cheapest flight

$119
Best time to beat the crowds but there is an average 44% increase in price.
Most popular time to fly and prices are also 5% 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 5 days, the lowest price for a flight from St. Louis to Boston was $119 for a one-way ticket and $317 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?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the St. Louis to Boston flight route.

  • 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Boston, with Star Alliance being the most commonly used for this route.

  • 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Boston are Southwest and Delta. With an average price for the route of $514 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $345 and an overall rating of 7.8.

  • 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.

KAYAK’s top tips for finding a cheap flight from St. Louis to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $234 or less one-way and $426 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.

Prefer to fly direct from St. Louis to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Boston Logan Intl.
Find which airlines fly direct from Lambert-St Louis Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Boston Logan Intl

Monday

American Airlines,Southwest

American Airlines,Southwest

Tuesday

American Airlines,Southwest

American Airlines,Southwest

Wednesday

American Airlines,Southwest

American Airlines,Southwest

Thursday

American Airlines,Southwest

American Airlines,Southwest

Friday

American Airlines,Southwest

American Airlines,Southwest

Saturday

American Airlines,Southwest

American Airlines,Southwest

Sunday

American Airlines,Southwest

American Airlines,Southwest

See more direct flights

Direct returns

Boston Logan Intl to Lambert-St Louis

Monday

American Airlines,Southwest

American Airlines,Southwest

Tuesday

American Airlines,Southwest

American Airlines,Southwest

Wednesday

American Airlines,Southwest

American Airlines,Southwest

Thursday

American Airlines,Southwest

American Airlines,Southwest

Friday

American Airlines,Southwest

American Airlines,Southwest

Saturday

American Airlines,Southwest

American Airlines,Southwest

Sunday

American Airlines,Southwest

American Airlines,Southwest

See more direct flights

Reviews of the 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
SouthwestOverall score based on 4229 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
Airline reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

6.0 GoodAnonymous, Mar 2026
STL - HOU
Read more Southwest reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Love Southwest! Always a good trip with a happy crew who goes out of their way to be kind and fun.

friendly staff for the most part. they thought we were going to have bad turbulence so no drink service. there wasn't any turbulence. Iwish you had a choice of snacks

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

This flight was originally delayed by ~45 minutes; which is fine. However, there were additional delays due to late offboarding of the prior flight, unclear issues with the boarding process, delays on the tarmac, and exceptionally long taxiing. None of these issues were communicated proactively. Additionally, the flight had exceptionally rough turbulence, which led to a very uncomfortable flight and no traditional beverage service. Again, this is understandable, but it was not communicated up-front by the flight team.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

The tray table was broken and the food was terrible.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Super friendly with lots of drink options an entertainment. Friendly crew.

I like flying first class, and United has a nice one

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

I was forced to check my carry-on backpack despite there being space - but it came out on the baggage carousel so fast it didn't even delay my pickup. Otherwise a good flight. Boarding began early (which was disadvantageous for me) but fine.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

Good even though flight was delayed, the crew was prompt and efficient.

I thought American Airlines did well considering the adverse weather situation over July 21 and 22. I especially appreciated the consideration given to me when I got stuck in Miami on my way to Boston from Charleston, West Virginia. Thank you for providing a voucher for an overnight stay. Though it was only a few hours of sleep, it was very helpful. I was able to reschedule my medical appointment and got back to the Boston area on the 1st flight out of Miami as a standby passenger. It was very helpful that I was given number one priority on the standby list.

I had my flight of Cedar Rapids. THen Chicago to Boston. Flight out of Cedar rapids was delayed by 12 hrs. Had to drive to Chicago to catch my flight

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

Frontier feels like a family I Worked for Eastern Airlines back in the day and I felt the family vibe that I had then. Thank you

Terrible. Delayed my family flight for several hours affecting family plans

Tiny seats, no entertainment, no amenities, delays, they charge for carry on and their allowed personal item is smaller than in other airlines.

The seats are tiny and they don’t recline. The planes are dirty and very small. You have to pay for carry on and even the personal item that you’re allowed is smaller than with other airlines. Flights are usually delayed and there’s no screens or any amenities or entertainment.

Flight was delayed but it was very smooth. Crew was very nice. Seats are uncomfortable but ok.

Flight was delayed and then my second leg was completely canceled. Had to get a refund

The flight was great . But you only had one vegan item on the whole flight and someone prior to me took it . I was so disappointed cause I came in from the flooded area and couldn’t pick up anything prior to my flight .

I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.

Charging $74 for one checked bag is outrageous. I will never fly Frontier again.

I have come to accept Frontier as an absolute no-frills airline, paying for everything I want. A 4.5-hour flight should provide me with a complimentary beverage—rather, $4.9x for a soda. Or a bottle of water ought to be extended at no cost. 4 beers are on the menu, but only 1 type of beer is available (at $9.95). Also, so many restrictions to using a voucher from Barclay‘s Credit Card. Finally, try to reach a live agent for Frontier- impossible!

Everything you need to know for your flight from St. Louis to Boston

Other airlines flying from St. Louis to Boston

Flights from the other most popular airlines that fly from St. Louis to Boston according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.