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Cheap flights from Boston (BOS) to St. Charles, MO from $68

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. 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.
BOS — STL
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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The best prices from Boston Logan Intl to St. Charles are usually found in February or January, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to St. Charles

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to St. Charles (CH5). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$319

One-way from

$135
High demand for flights, 12% potential price rise
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Best time to find cheap flights, 22% potential price drop
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From Boston Logan Intl to St. Charles
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One-way flight from Boston Logan Intl to St. Charles
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How far in advance should I book a flight from Boston to St. Charles?

Users have found that booking a flight from Boston to St. Charles at least 30 days early can save you up to 87% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from Boston to St. Charles for as little as $554 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $644 for flights departing within the next 3 days.

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

Our data shows that February tends to be the cheapest month to fly to St. Charles from Boston. Users have commonly found prices around $442 for the month, but tickets can be as low as $158. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from BOS to CH5?

When flying from Boston to St. Charles, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap American Airlines flights from Boston to St. Charles

Explore cheap flight options specifically provided by American Airlines for the route between Boston and St. Charles. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the cheapest American Airlines flights we've come across from Boston to St. Charles. Come back soon if you're not finding the exact deal you're looking for.
Tue 6/257:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Wed 7/106:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/30$311
Tue 6/252:14 pmBOS - STL
1 stop8h 14mAmerican Airlines
Wed 7/106:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/30$314
Tue 10/87:00 amBOS - STL
Nonstop3h 08mAmerican Airlines
Tue 10/225:37 amSTL - BOS
1 stop4h 32mAmerican Airlines
Deal found 5/29$319
Tue 9/247:00 amBOS - STL
Nonstop3h 00mAmerican Airlines
Fri 9/273:07 pmSTL - BOS
1 stop4h 49mAmerican Airlines
Deal found 5/29$334
Fri 6/287:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Fri 7/56:08 amSTL - BOS
1 stop8h 04mAmerican Airlines
Deal found 5/29$335
Mon 10/287:00 amBOS - STL
Nonstop3h 15mAmerican Airlines
Thu 10/315:43 amSTL - BOS
1 stop4h 26mAmerican Airlines
Deal found 5/29$339
Mon 8/57:00 amBOS - STL
Nonstop3h 12mAmerican Airlines
Fri 8/97:02 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/29$341
Thu 6/279:09 amBOS - STL
1 stop8h 42mAmerican Airlines
Mon 7/16:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/29$344
Thu 7/185:15 amBOS - STL
1 stop5h 33mAmerican Airlines
Thu 7/1811:05 amSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/29$346

Cheap Frontier flights from Boston to St. Charles

Explore cheap flight options specifically provided by Frontier for the route between Boston and St. Charles. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the lowest-priced Frontier flights we've found at this time heading from Boston to St. Charles. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Tue 6/117:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/28$114
Wed 6/129:16 amBOS - STL
1 stop22h 51mFrontier
Tue 6/187:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/30$148
Wed 6/129:16 amBOS - STL
1 stop22h 51mFrontier
Fri 6/147:44 pmSTL - BOS
1 stop12h 25mFrontier
Deal found 5/29$150
Wed 8/218:15 amBOS - STL
1 stop7h 27mFrontier
Fri 8/236:42 pmSTL - BOS
1 stop13h 31mFrontier
Deal found 5/29$154
Wed 8/712:32 pmBOS - STL
1 stop9h 10mFrontier
Sat 8/103:09 pmSTL - BOS
1 stop8h 18mFrontier
Deal found 5/29$160
Wed 8/712:32 pmBOS - STL
1 stop9h 10mFrontier
Thu 8/87:33 pmSTL - BOS
1 stop11h 53mFrontier
Deal found 5/29$168
Mon 7/812:32 pmBOS - STL
1 stop9h 10mFrontier
Sat 7/133:09 pmSTL - BOS
1 stop8h 18mFrontier
Deal found 5/29$169
Wed 7/39:16 amBOS - STL
1 stop24h 21mFrontier
Wed 7/109:32 pmSTL - BOS
1 stop11h 36mFrontier
Deal found 5/29$170
Mon 7/812:32 pmBOS - STL
1 stop9h 10mFrontier
Fri 7/127:33 pmSTL - BOS
1 stop12h 55mFrontier
Deal found 5/29$178

Cheap Boston to St. Charles flights in May & June 2024

Find cheap flight options from Boston to St. Charles specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the most attractive deals on flights from Boston to St. Charles in 2024. Check back soon for alternative fares.
Wed 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Tue 6/117:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/28$114
Wed 6/129:16 amBOS - STL
1 stop22h 51mFrontier
Fri 6/147:44 pmSTL - BOS
1 stop12h 25mFrontier
Deal found 5/29$150
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/1111:57 amSTL - BOS
2 stops20h 54mMultiple Airlines
Deal found 5/28$177
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/113:23 pmSTL - BOS
1 stop6h 45mMultiple Airlines
Deal found 5/28$179
Thu 6/66:00 amBOS - STL
1 stop5h 05mDelta
Mon 6/176:00 amSTL - BOS
1 stop7h 17mDelta
Deal found 5/29$196
Wed 6/126:30 amBOS - STL
2 stops30h 15mMultiple Airlines
Fri 6/1412:15 pmSTL - BOS
2 stops11h 23mMultiple Airlines
Deal found 5/29$197
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/1111:57 amSTL - BOS
3 stops32h 57mMultiple Airlines
Deal found 5/28$198
Tue 6/256:10 amBOS - STL
1 stop9h 13mMultiple Airlines
Wed 7/109:32 pmSTL - BOS
1 stop11h 36mMultiple Airlines
Deal found 5/30$202
Fri 6/78:10 amBOS - STL
1 stop7h 47mDelta
Mon 6/107:06 pmSTL - BOS
1 stop5h 25mDelta
Deal found 5/30$206

Boston to St. Charles 2024 flight deals

Discover exclusive flight deals for travel between Boston and St. Charles in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
These are some of the most attractive deals on flights from Boston to St. Charles in 2024. Check back soon for alternative fares.
Wed 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Tue 6/117:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/28$114
Wed 6/129:16 amBOS - STL
1 stop22h 51mFrontier
Fri 6/147:44 pmSTL - BOS
1 stop12h 25mFrontier
Deal found 5/29$150
Wed 8/218:15 amBOS - STL
1 stop7h 27mFrontier
Fri 8/236:42 pmSTL - BOS
1 stop13h 31mFrontier
Deal found 5/29$154
Wed 8/712:32 pmBOS - STL
1 stop9h 10mFrontier
Sat 8/103:09 pmSTL - BOS
1 stop8h 18mFrontier
Deal found 5/29$160
Wed 8/712:32 pmBOS - STL
1 stop9h 10mFrontier
Thu 8/87:33 pmSTL - BOS
1 stop11h 53mFrontier
Deal found 5/29$168
Mon 7/812:32 pmBOS - STL
1 stop9h 10mFrontier
Sat 7/133:09 pmSTL - BOS
1 stop8h 18mFrontier
Deal found 5/29$169
Wed 7/39:16 amBOS - STL
1 stop24h 21mFrontier
Wed 7/109:32 pmSTL - BOS
1 stop11h 36mFrontier
Deal found 5/29$170
Wed 8/289:16 amBOS - STL
1 stop22h 46mMultiple Airlines
Wed 9/44:31 pmSTL - BOS
1 stop26h 34mMultiple Airlines
Deal found 5/29$175
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/1111:57 amSTL - BOS
2 stops20h 54mMultiple Airlines
Deal found 5/28$177

Non-stop flights to St. Charles from Boston

Discover non-stop flight options from Boston to St. Charles. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Consider booking one of these non-stop flights heading from Boston to St. Charles. Search for alternative flights from Boston to St. Charles by utilizing the search form above.
Tue 6/257:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Wed 7/106:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/30$311
Tue 6/184:14 pmBOS - STL
Nonstop3h 00mAmerican Airlines
Wed 6/1911:05 amSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/29$314
Sat 8/317:00 amBOS - STL
Nonstop3h 14mAmerican Airlines
Wed 9/411:38 amSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/29$316
Tue 7/304:14 pmBOS - STL
Nonstop3h 07mAmerican Airlines
Thu 8/16:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/29$326
Wed 10/237:00 amBOS - STL
Nonstop3h 08mAmerican Airlines
Mon 10/281:38 pmSTL - BOS
Nonstop2h 29mAmerican Airlines
Deal found 5/29$331
Mon 8/57:00 amBOS - STL
Nonstop3h 12mAmerican Airlines
Fri 8/97:02 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/29$341
Thu 7/187:00 amBOS - STL
Nonstop3h 12mAmerican Airlines
Tue 7/2311:16 amSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/29$346
Wed 6/127:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Fri 6/146:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/29$347
Tue 9/247:00 amBOS - STL
Nonstop3h 00mAmerican Airlines
Fri 9/276:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/29$355

Boston to St. Charles flights leaving soon

Find last-minute flight options from Boston to St. Charles for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Have a look at some of the flights available from Boston to St. Charles departing last-minute. It's wise to confirm all flight details are correct before booking.
Wed 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Tue 6/117:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/28$114
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/1111:57 amSTL - BOS
2 stops20h 54mMultiple Airlines
Deal found 5/28$177
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/113:23 pmSTL - BOS
1 stop6h 45mMultiple Airlines
Deal found 5/28$179
Thu 6/66:00 amBOS - STL
1 stop5h 05mDelta
Mon 6/176:00 amSTL - BOS
1 stop7h 17mDelta
Deal found 5/29$196
Wed 6/56:10 amBOS - STL
3 stops30h 35mMultiple Airlines
Tue 6/1111:57 amSTL - BOS
3 stops32h 57mMultiple Airlines
Deal found 5/28$198
Fri 6/78:10 amBOS - STL
1 stop7h 47mDelta
Mon 6/107:06 pmSTL - BOS
1 stop5h 25mDelta
Deal found 5/30$206
Wed 6/59:16 amBOS - STL
1 stop22h 51mMultiple Airlines
Sat 6/811:34 amSTL - BOS
1 stop7h 52mMultiple Airlines
Deal found 5/29$232
Wed 6/55:35 amBOS - STL
1 stop4h 44mDelta
Wed 6/1211:25 amSTL - BOS
1 stop7h 24mDelta
Deal found 5/29$237
Sat 6/85:20 amBOS - STL
1 stop4h 55mDelta
Wed 6/126:00 amSTL - BOS
1 stop5h 20mDelta
Deal found 5/30$247

One-way flights to St. Charles from Boston

Search for one-way flight options from Boston to St. Charles. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the one-way flights we've detected from Boston to St. Charles. Those needing a return flight from Boston to St. Charles can use the search form above.
Wed 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Deal found 5/29$68
Tue 6/256:10 amBOS - STL
1 stop9h 13mSpirit Airlines
Deal found 5/29$85
Wed 8/712:32 pmBOS - STL
1 stop9h 10mFrontier
Deal found 5/30$86
Wed 6/126:30 amBOS - STL
2 stops30h 15mMultiple Airlines
Deal found 5/29$90
Mon 6/107:46 pmBOS - STL
2 stops19h 37mSpirit Airlines
Deal found 5/29$91
Fri 8/235:00 pmBOS - STL
2 stops25h 30mSpirit Airlines
Deal found 5/30$93
Mon 7/812:32 pmBOS - STL
1 stop9h 10mFrontier
Deal found 5/29$94
Thu 6/66:00 amBOS - STL
1 stop5h 05mDelta
Deal found 5/30$98
Fri 8/29:26 amBOS - STL
1 stop24h 10mFrontier
Deal found 5/28$99

Find flights from Boston to St. Charles within your budget

Customize your flight search to find flights from Boston to St. Charles that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$148 - $311

Route

Depart

Return

Price

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 6/12

1 stop22h 51m

Lambert-St Louis

Tue 6/18

1 stop11h 32m

$148

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 6/12

1 stop22h 51m

Lambert-St Louis

Fri 6/14

1 stop12h 25m

$150

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 8/21

1 stop7h 27m

Lambert-St Louis

Fri 8/23

1 stop13h 31m

$154

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 8/28

1 stop22h 46m

Lambert-St Louis

Wed 9/4

1 stop26h 34m

$175

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Mon 6/10

1 stop16h 11m

Lambert-St Louis

Wed 6/12

2 stops10h 16m

$176

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 8/21

1 stop25h 03m

Lambert-St Louis

Fri 8/23

2 stops20h 04m

$212

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 6/11

1 stop5h 56m

Lambert-St Louis

Tue 7/9

1 stop4h 41m

$230

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Mon 6/10

1 stop6h 48m

Lambert-St Louis

Wed 6/12

1 stop7h 08m

$258

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 6/25

Nonstop3h 07m

Lambert-St Louis

Wed 7/10

Nonstop2h 38m

$311

Flights are sorted by cheapest first

Deals found on 5/30

How far ahead should I book a flight from Boston to St. Charles?

Use this chart to determine the optimal time to book a round-trip flight from Boston to St. Charles. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Boston to St. Charles, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Boston to St. Charles?

Use this chart to determine the cheapest time to fly round-trip from Boston to St. Charles. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to St. Charles flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Boston to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Charles by month

Plan your trip to St. Charles by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Charles

Get insights into the airlines that provide service to St. Charles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Charles. Reviews last updated May 30, 2024.
Peruse reviews from past customers who have flown with American Airlines, Frontier and Spirit Airlines from Boston to St. Charles to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
596 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Spirit Airlines
6.4
Okay
8,616 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Boston to St. Charles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to St. Charles?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to St. Charles. You should not have trouble finding flights to St. Charles from Logan Intl; the airport handles an average of 5 outbound flights to St. Charles per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Boston airport to St. Charles. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • Can I find flights from Boston to St. Charles for under $200 on Cheapflights?

    Yes, there are multiple flights from Boston to St. Charles for under $200. The cheapest flight booked recently is on Frontier for just $148, but on average you can expect to pay $182.

  • Are there nonstop flights from Boston to St. Charles for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Boston to St. Charles under $400. A good price for a nonstop flight from Boston to St. Charles is less than $356.

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

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

  • What days are nonstop flights available from Boston to St. Charles?

    You can find nonstop flights on the following days: Thursday, Friday, Saturday.

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

    On average 7 flights depart from Boston to St. Charles per day.
    Morning (6am - Noon) - 86% of flight departures
    Evening (6pm - Midnight) - 14% of flight departures

  • How long is the flight from Boston to St. Charles?

    There are many flights that can get you from Boston to St. Charles in 5h 56m. Fly via Frontier, Spirit Airlines, or Delta to get the fastest option. There are 1049 mi between Boston and St. Charles. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Boston to St. Charles one-way?

    The cheapest airlines for a one-way flight from Boston to St. Charles are Frontier ($68), Spirit Airlines ($85), and Delta ($98).

  • What are the most reliable airlines from Boston to St. Charles?

    No one likes to see their flight delayed. When booking a flight from Boston to St. Charles consider choosing Republic Airways (100%), Qatar Airways (96%) or American Airlines (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to St. Charles?

    Looking at all options, your cheapest flight can be booked for $132. While the most popular route (Boston Logan Intl - Lambert-St Louis) can be booked for $166 on average our data indicates $342 when flying from Boston to St. Charles.

  • What does BOS to STL mean?

    BOS stands for Boston Logan Intl Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Columbia Regional Airport (COU), Springfield Capital Airport (SPI), Belleville Airport (BLV), Quincy Regional Airport (UIN) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Boston to St. Charles that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to St. Charles flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to St. Charles with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to St. Charles flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Boston to St. Charles that include hotel bookings?

    Yes. In addition to deals on Boston to St. Charles flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to St. Charles?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to St. Charles.

  • Can I find deals for business class flights from Boston to St. Charles?

    Yes. Cheapflights offers flight deals from Boston to St. Charles by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Boston to St. Charles that allow pets onboard?

    Many airlines flying from Boston to St. Charles offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to St. Charles?

    Yes, you can often find last-minute deals on Boston to St. Charles flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to St. Charles flight deals updated?

    The Boston to St. Charles flight deals you see on this page were last updated on 5/29.

  • What are the most popular airlines that fly from Boston to St. Charles?

    Before booking your flight from Boston to St. Charles check out the most popular airlines for this route: American Airlines, Alaska Airlines or JetBlue.

  • What is the cheapest month to book a flight from Boston to St. Charles?

    Currently, September is the cheapest month in which you can book a flight from Boston to St. Charles (average of $319). Flying from Boston to St. Charles in July is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Boston to St. Charles
See prices for flight routes from nearby airports that may be better suited for you.

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Top 7 airlines flying from Boston to St. Charles

Discover the top 7 airlines that operate flights from Boston to St. Charles. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$223FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$146Average$254FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$197Average$406FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$278Average$543FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$313Average$509FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest$320Average$519FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Alaska AirlinesCheapest$366Average$535FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Boston to St. Charles by cabin class

Find flights from Boston to St. Charles, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Boston to St. Charles

Find hourly flight availability from Boston to St. Charles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
0%of flight departuresEarly morningMidnight to 6 am
86%of flight departuresMorning6 am to noon
12%of flight departuresAfternoonNoon to 6 pm
2%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Boston to St. Charles

Explore weekly flight availability from Boston to St. Charles. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 30, 2024.
Sunday7daily flights
Monday6daily flights
Tuesday6daily flights
Wednesday6daily flights
Thursday6daily flights
Friday6daily flights
Saturday3daily flights

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Cheapflights makes it easy to find Boston to St. Charles flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Can Cheapflights find flights from Boston to St. Charles with no change fees?

Need flexible booking options for your flight to St. Charles from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to St. Charles become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Charles from Boston today and book when prices fit your budget.

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