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Cheap flights from Kansas City to St. Louis (MCI - STL) from $98

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 5/30. 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.
MCI — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from Kansas City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to St. Louis (STL). 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 16, 2024.

Round-trip from

$320

One-way from

$189
From Kansas City to Lambert-St Louis
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One-way flight from Kansas City to Lambert-St Louis
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What is the cheapest day to fly round-trip from Kansas City to St. Louis?

Travelers have found that booking a Tuesday departure is the best way to save up to 64% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

When is the cheapest time to fly from Kansas City to St. Louis (MCI - STL)?

When flying from Kansas City to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 35% versus a flight at noon.

Cheap American Airlines flights from Kansas City to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Kansas City and St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Take a peek at the cheapest American Airlines flights we've detected traveling from Kansas City to St. Louis. Make sure to check back often as deals are often changing.
Tue 7/97:13 amMCI - STL
1 stop10h 06mAmerican Airlines
Tue 7/165:30 pmSTL - MCI
1 stop5h 50mAmerican Airlines
Deal found 5/15$256
Wed 5/225:40 amMCI - STL
1 stop3h 39mAmerican Airlines
Wed 5/295:55 amSTL - MCI
1 stop8h 01mAmerican Airlines
Deal found 5/15$401
Thu 6/64:20 pmMCI - STL
1 stop7h 43mAmerican Airlines
Sat 6/87:00 amSTL - MCI
2 stops9h 43mAmerican Airlines
Deal found 5/15$660

Cheap Frontier flights from Kansas City to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Kansas City and St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Some of the lowest-priced Frontier flights we've found at this time heading from Kansas City to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Fri 6/147:44 pmMCI - STL
1 stop13h 45mFrontier
Fri 6/215:36 pmSTL - MCI
1 stop14h 05mFrontier
Deal found 5/15$259
Thu 6/67:44 pmMCI - STL
1 stop13h 56mFrontier
Sat 6/88:02 pmSTL - MCI
1 stop12h 13mFrontier
Deal found 5/15$268
Fri 5/249:00 pmMCI - STL
1 stop10h 57mFrontier
Sat 5/258:04 pmSTL - MCI
1 stop12h 11mFrontier
Deal found 5/16$338

Cheap Kansas City to St. Louis flights in May & June 2024

Find cheap flight options from Kansas City to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from Kansas City to St. Louis in 2024. Check back regularly for other flight deals.
Tue 6/187:08 amMCI - STL
1 stop10h 10mAmerican Airlines
Wed 6/196:00 amSTL - MCI
1 stop10h 43mAmerican Airlines
Deal found 5/16$223
Mon 6/106:49 pmMCI - STL
1 stop19h 34mMultiple Airlines
Sat 6/158:02 pmSTL - MCI
1 stop12h 13mMultiple Airlines
Deal found 5/15$226
Sat 6/157:22 pmMCI - STL
1 stop21h 10mSpirit Airlines
Tue 7/1611:26 amSTL - MCI
1 stop20h 27mSpirit Airlines
Deal found 5/16$237
Fri 6/147:44 pmMCI - STL
1 stop13h 45mFrontier
Fri 6/215:36 pmSTL - MCI
1 stop14h 05mFrontier
Deal found 5/15$259
Thu 6/67:44 pmMCI - STL
1 stop13h 56mFrontier
Sat 6/88:02 pmSTL - MCI
1 stop12h 13mFrontier
Deal found 5/15$268
Tue 6/185:10 amMCI - STL
3 stops10h 55mMultiple Airlines
Wed 6/191:55 pmSTL - MCI
1 stop16h 14mMultiple Airlines
Deal found 5/16$305
Sat 6/157:22 pmMCI - STL
2 stops22h 43mSpirit Airlines
Tue 7/1611:26 amSTL - MCI
2 stops22h 22mSpirit Airlines
Deal found 5/16$312
Fri 6/145:28 pmMCI - STL
2 stops24h 00mSpirit Airlines
Fri 6/213:07 pmSTL - MCI
1 stop15h 02mSpirit Airlines
Deal found 5/15$335
Fri 5/249:00 pmMCI - STL
1 stop10h 57mFrontier
Sat 5/258:04 pmSTL - MCI
1 stop12h 11mFrontier
Deal found 5/16$338

Kansas City to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Kansas City and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from Kansas City to St. Louis in 2024. Check back regularly for other flight deals.
Tue 6/187:08 amMCI - STL
1 stop10h 10mAmerican Airlines
Wed 6/196:00 amSTL - MCI
1 stop10h 43mAmerican Airlines
Deal found 5/16$223
Mon 6/106:49 pmMCI - STL
1 stop19h 34mMultiple Airlines
Sat 6/158:02 pmSTL - MCI
1 stop12h 13mMultiple Airlines
Deal found 5/15$226
Sat 6/157:22 pmMCI - STL
1 stop21h 10mSpirit Airlines
Tue 7/1611:26 amSTL - MCI
1 stop20h 27mSpirit Airlines
Deal found 5/16$237
Tue 7/97:13 amMCI - STL
1 stop10h 06mAmerican Airlines
Tue 7/165:30 pmSTL - MCI
1 stop5h 50mAmerican Airlines
Deal found 5/15$256
Fri 6/147:44 pmMCI - STL
1 stop13h 45mFrontier
Fri 6/215:36 pmSTL - MCI
1 stop14h 05mFrontier
Deal found 5/15$259
Thu 6/67:44 pmMCI - STL
1 stop13h 56mFrontier
Sat 6/88:02 pmSTL - MCI
1 stop12h 13mFrontier
Deal found 5/15$268
Tue 6/185:10 amMCI - STL
3 stops10h 55mMultiple Airlines
Wed 6/191:55 pmSTL - MCI
1 stop16h 14mMultiple Airlines
Deal found 5/16$305
Sat 6/157:22 pmMCI - STL
2 stops22h 43mSpirit Airlines
Tue 7/1611:26 amSTL - MCI
2 stops22h 22mSpirit Airlines
Deal found 5/16$312
Fri 6/145:28 pmMCI - STL
2 stops24h 00mSpirit Airlines
Fri 6/213:07 pmSTL - MCI
1 stop15h 02mSpirit Airlines
Deal found 5/15$335

Kansas City to St. Louis flights leaving soon

Find last-minute flight options from Kansas City to St. Louis 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 2,637,452 searches. Data last updated May 16, 2024.
Book one of these great deals on flights from Kansas City to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
Fri 5/249:00 pmMCI - STL
1 stop10h 57mFrontier
Sat 5/258:04 pmSTL - MCI
1 stop12h 11mFrontier
Deal found 5/16$338
Wed 5/225:40 amMCI - STL
1 stop3h 39mAmerican Airlines
Wed 5/295:55 amSTL - MCI
1 stop8h 01mAmerican Airlines
Deal found 5/15$401
Thu 5/235:20 amMCI - STL
1 stop13h 20mSpirit Airlines
Wed 5/2911:36 amSTL - MCI
3 stops37h 05mSpirit Airlines
Deal found 5/14$485
Wed 5/226:00 amMCI - STL
2 stops15h 09mUnited Airlines
Wed 5/295:31 pmSTL - MCI
1 stop15h 08mUnited Airlines
Deal found 5/15$499
Wed 5/226:00 amMCI - STL
2 stops15h 09mUnited Airlines
Wed 5/298:55 amSTL - MCI
2 stops13h 00mUnited Airlines
Deal found 5/15$608
Fri 5/245:25 pmMCI - STL
1 stop17h 03mSpirit Airlines
Sat 5/255:15 pmSTL - MCI
2 stops24h 24mSpirit Airlines
Deal found 5/16$636
Thu 5/239:59 pmMCI - STL
2 stops17h 15mSpirit Airlines
Wed 5/2911:36 amSTL - MCI
3 stops37h 05mSpirit Airlines
Deal found 5/14$639
Fri 5/247:00 amMCI - STL
1 stop8h 14mMultiple Airlines
Sat 5/2512:15 pmSTL - MCI
3 stops36h 26mMultiple Airlines
Deal found 5/16$663
Thu 5/236:15 amMCI - STL
1 stop14h 34mUnited Airlines
Wed 5/2911:15 amSTL - MCI
2 stops12h 20mUnited Airlines
Deal found 5/14$673

One-way flights to St. Louis from Kansas City

Search for one-way flight options from Kansas City to St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Users in need of a one-way flight from Kansas City to St. Louis can choose from these deals. Users can also find round-trip Kansas City to St. Louis flights by using the search form above.
Thu 5/305:40 amMCI - STL
1 stop10h 37mAmerican Airlines
Deal found 5/15$98
Mon 6/176:49 pmMCI - STL
1 stop19h 34mSpirit Airlines
Deal found 5/15$106
Wed 6/125:28 pmMCI - STL
1 stop25h 54mSpirit Airlines
Deal found 5/15$116
Thu 8/227:45 pmMCI - STL
1 stop13h 52mFrontier
Deal found 5/15$135
Fri 9/276:51 pmMCI - STL
1 stop22h 39mSpirit Airlines
Deal found 5/14$136
Thu 7/187:44 pmMCI - STL
1 stop13h 41mFrontier
Deal found 5/15$139
Wed 6/125:28 pmMCI - STL
2 stops24h 00mSpirit Airlines
Deal found 5/15$149
Sat 6/157:22 pmMCI - STL
1 stop21h 10mSpirit Airlines
Deal found 5/15$153
Wed 6/1210:39 amMCI - STL
3 stops32h 43mSpirit Airlines
Deal found 5/15$156

Find flights from Kansas City to St. Louis within your budget

Customize your flight search to find flights from Kansas City to St. Louis 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$226 - $524

Route

Depart

Return

Price

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Mon 6/10

1 stop19h 34m

Lambert-St Louis

Sat 6/15

1 stop12h 13m

$226

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Tue 7/9

1 stop10h 06m

Lambert-St Louis

Tue 7/16

1 stop5h 50m

$256

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Fri 6/14

1 stop13h 45m

Lambert-St Louis

Fri 6/21

1 stop14h 05m

$259

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Thu 6/6

1 stop13h 56m

Lambert-St Louis

Sat 6/8

1 stop12h 13m

$268

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Fri 6/14

2 stops24h 00m

Lambert-St Louis

Fri 6/21

1 stop15h 02m

$335

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Fri 6/14

2 stops24h 00m

Lambert-St Louis

Fri 6/21

3 stops34h 39m

$376

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Fri 6/14

1 stop7h 17m

Lambert-St Louis

Fri 6/21

3 stops34h 39m

$378

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Fri 6/14

3 stops34h 29m

Lambert-St Louis

Fri 6/21

3 stops34h 39m

$424

Kansas CityLambert-St Louis

MCI - STL

MCISTL

Kansas City

Tue 7/9

2 stops14h 11m

Lambert-St Louis

Tue 7/16

1 stop15h 09m

$524

Flights are sorted by cheapest first

Deals found on 5/15

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

Use this chart to determine the cheapest time to fly round-trip from Kansas City to St. Louis. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Kansas City to St. Louis flight should consider departing on Wednesday mornings 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

Average price of flights to St. Louis by month

Plan your trip from Kansas City to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Kansas City to St. Louis is currently $132 while a round-trip flight costs $338. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Kansas City to St. Louis (average of $320). Flying from Kansas City to St. Louis in July is currently the most expensive (average of $369). 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.

January

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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. Louis. Reviews last updated May 16, 2024.
See what other customers who have flown with American Airlines, Frontier and Spirit Airlines from Kansas City to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,924 reviews
Check prices

Comfort

7.2

Overall

7.4

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

For a first class fair this was the worse ever. 1. Long delay departing. 2. Long time landing. 3. Late getting car hire. 4. No compensation whatsoever. Do I need to say more. You check it out yourself.

United Airlines
7.4
Good
10,924 reviews
United Airlines
7.4
Good
10,924 reviews
Check prices

Comfort

7.2

Overall

7.4

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

For a first class fair this was the worse ever. 1. Long delay departing. 2. Long time landing. 3. Late getting car hire. 4. No compensation whatsoever. Do I need to say more. You check it out yourself.

American Airlines
7.3
Good
14,514 reviews
United Airlines
7.4
Good
10,924 reviews
Check prices

Comfort

7.2

Overall

7.4

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

For a first class fair this was the worse ever. 1. Long delay departing. 2. Long time landing. 3. Late getting car hire. 4. No compensation whatsoever. Do I need to say more. You check it out yourself.

Spirit Airlines
6.4
Okay
8,672 reviews
United Airlines
7.4
Good
10,924 reviews
Check prices

Comfort

7.2

Overall

7.4

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

For a first class fair this was the worse ever. 1. Long delay departing. 2. Long time landing. 3. Late getting car hire. 4. No compensation whatsoever. Do I need to say more. You check it out yourself.

Frontier
6.3
Okay
4,060 reviews
United Airlines
7.4
Good
10,924 reviews
Check prices

Comfort

7.2

Overall

7.4

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

For a first class fair this was the worse ever. 1. Long delay departing. 2. Long time landing. 3. Late getting car hire. 4. No compensation whatsoever. Do I need to say more. You check it out yourself.

Related info for your journey

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

  • What airports do I use to fly from Kansas City to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Kansas City. Booking flights from Kansas City (MCI) to Lambert-St Louis (STL) should be relatively easy as there are 2 daily flights to St. Louis from 1 airline. 5h 18m is how long a flight from Kansas City to Lambert-St Louis will take if you book a nonstop flight.

  • Can I find flights from Kansas City to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Kansas City to St. Louis for under $300. The cheapest flight booked recently is on Multiple Airlines for just $226, but on average you can expect to pay $370.

  • Are there last-minute flights available from Kansas City to St. Louis for under $400?

    There are currently 10+ open flights from Kansas City to St. Louis within the next 7 days for less than $400.

  • What are the cheapest airlines flying from Kansas City to St. Louis round-trip?

    Our cheapest airline available from Kansas City to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $256 on this airline. Additional options worth looking into are Frontier and Spirit Airlines, starting at $259 and $335 round-trip.

  • What are the cheapest airlines to fly from Kansas City to St. Louis one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $98. Spirit Airlines flights start at $106 while deals on Frontier start at $135 one-way.

  • What does MCI to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Kansas City Airport to Lambert-St Louis Airport flight would often be abbreviated as a MCI to STL flight.

  • Can I find deals for flights from Kansas City to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Kansas City to St. Louis 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 Kansas City to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Kansas City to St. Louis 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 Kansas City to St. Louis that include hotel bookings?

    Yes. In addition to deals on Kansas City to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to St. Louis?

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

  • Can I find deals for business class flights from Kansas City to St. Louis?

    Yes. Cheapflights offers flight deals from Kansas City to St. Louis 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 Kansas City to St. Louis that allow pets onboard?

    Many airlines flying from Kansas City to St. Louis 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 Kansas City to St. Louis?

    Yes, you can often find last-minute deals on Kansas City to St. Louis 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 Kansas City to St. Louis flight deals updated?

    The Kansas City to St. Louis flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Kansas City to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Kansas City to St. Louis

Discover the top airline that operate flights from Kansas City to St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$277Average$401FlexibilityNo cancel feeOn-time71%
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Search flights from Kansas City to St. Louis by cabin class

Find flights from Kansas City to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Kansas City to St. Louis

Find hourly flight availability from Kansas City to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 16, 2024.
41%of flight departuresEarly morningMidnight to 6 am
33%of flight departuresMorning6 am to noon
26%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Kansas City to St. Louis

Explore weekly flight availability from Kansas City to St. Louis. 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 16, 2024.
Sunday2daily flights
Monday3daily flights
Tuesday3daily flights
Wednesday3daily flights
Thursday3daily flights
Friday3daily flights
Saturday1daily flight

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Kansas City to St. Louis?

When you search for this flight from Kansas City to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Kansas City to St. Louis?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Kansas City to St. Louis.

Can Cheapflights find flights from Kansas City to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Kansas City to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Kansas City to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Kansas City to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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