Missouri

$27+ Cheap flights from Missouri

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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
Jun 7 — Jun 141
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Find flights from Missouri within your budget

 
Find flights departing from Missouri that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on May 8, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Tue 6/2

2:30 pm-7:25 pm

1 stop5h 55m

Denver Intl

Tue 6/9

12:05 pm-2:45 pm

Nonstop1h 40m

$227

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Wed 5/27

5:24 pm-6:25 pm

Nonstop2h 01m

Denver Intl

Sun 5/31

8:00 am-10:50 am

Nonstop1h 50m

$244

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 9/9

1:36 pm-3:00 pm

Nonstop2h 24m

Denver Intl

Mon 9/14

8:45 pm-11:50 pm

Nonstop2h 05m

$263

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Fri 6/5

7:25 pm-10:55 pm

1 stop4h 30m

Denver Intl

Mon 6/8

7:40 am-1:10 pm

1 stop4h 30m

$266

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Sat 5/30

6:05 pm-7:00 pm

Nonstop1h 55m

Denver Intl

Sun 5/31

6:40 am-12:15 pm

1 stop4h 35m

$275

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Fri 6/12

7:25 pm-10:55 pm

1 stop4h 30m

Denver Intl

Sun 6/14

6:10 am-8:45 am

Nonstop1h 35m

$281

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Sat 7/4

3:15 pm-8:25 pm

1 stop6h 10m

Denver Intl

Sat 7/11

7:05 am-12:35 pm

1 stop4h 30m

$291

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Tue 6/16

6:25 pm-11:05 pm

1 stop5h 40m

Denver Intl

Sat 6/20

12:05 pm-7:15 pm

2 stops6h 10m

$294

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Fri 6/5

7:40 pm-12:10 am

1 stop6h 30m

Seattle/Tacoma Intl

Mon 6/8

5:30 pm-11:06 pm

Nonstop3h 36m

$297

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 9/16

3:42 pm-11:45 pm

1 stop9h 03m

Denver Intl

Sat 9/19

6:10 am-2:31 pm

1 stop7h 21m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Missouri

Have a flexible travel schedule? Discover the best time to fly from Missouri 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.

Travel insights for flights from Missouri

Get recent, data-driven insights about flights from Missouri including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Missouri?

To ensure you get the cheapest price possible for a flight from Missouri, you should look to book at least 86 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.

What is the cheapest month to book a flight from Missouri?

Currently, March is the cheapest month in which you can book a flight from Missouri (average of $80). Flying from Missouri in July will prove the most costly (average of $547). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Missouri?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Seattle. Price data was last updated on May 2, 2026.

Those who are seeking the cheapest fare on flights departing from Missouri would be wise to consider leaving during Saturday evenings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Monday at noon when fares are usually the most expensive.

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Popular international destinations from Missouri

The most popular international flight routes departing from Missouri we’ve come across at this time.

Related info for your journey

Access useful and relevant information related to your journey from Missouri. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated May 8, 2026.
  • What is the cheapest month to fly from Missouri?

    March is currently the cheapest month to fly from Missouri. At this moment in time July is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from Missouri?

    Check out the cheapest flights from Missouri to embark to:
    Fly from St. Louis to Atlanta from $56 round trip
    Fly from St. Louis to Buffalo from $123 round trip
    Fly from St. Louis to Tampa from $129 round trip
    Fly from St. Louis to Chicago from $137 round trip
    Fly from St. Louis to Minneapolis from $137 round trip

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