Hotels in O'Fallon

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Check prices for these dates

Tonight
May 3 - May 4
Tomorrow
May 4 - May 5
Next weekend
May 9 - May 11
In two weeks
May 16 - May 18

Where to stay in O'Fallon?

Comfort Inn & Suites St. Louis - O'Fallon
Lobby

Comfort Inn & Suites St. Louis - O'Fallon

2.5 star property
7.6 out of 10, Good, (1001)
The price is $112
includes taxes & fees
$95 per night
May 18 - May 19
Comfort Inn & Suites St. Louis - O'Fallon
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
trending_down

Our prices for hotels in O'Fallon are cheapest in March

See average prices and weather for all months

Price trends for hotels in O'Fallon

Pricing is based on two traveler single night rates
May
$138
Average price during May is $138
Jun
$145
Average price during June is $145
Jul
$146
Average price during July is $146
Aug
$141
Average price during August is $141
Sep
$142
Average price during September is $142
Oct
$139
Average price during October is $139
Nov
$131
Average price during November is $131
Dec
$138
Average price during December is $138
Jan
$125
Average price during January is $125
Feb
$125
Average price during February is $125
Mar
$116
Average price during March is $116
Apr
$139
Average price during April is $139
Currently viewing crowd sizes and weather for May.

May

trending_flatModerate crowds
High 75°F / low 57°F. Sunny most days.
75°
weather_sun
May, Moderate crowds, average high temperature 75 degrees Fahrenheit, average low temperature 57 degrees Fahrenheit. Sunny most days.
57°
85°
weather_sun
June, High crowds, average high temperature 85 degrees Fahrenheit, average low temperature 67 degrees Fahrenheit. Sunny most days.
67°
88°
weather_sun
July, High crowds, average high temperature 88 degrees Fahrenheit, average low temperature 70 degrees Fahrenheit. Sunny most days.
70°
87°
weather_sun
August, High crowds, average high temperature 87 degrees Fahrenheit, average low temperature 68 degrees Fahrenheit. Sunny most days.
68°
81°
weather_sun
September, Moderate crowds, average high temperature 81 degrees Fahrenheit, average low temperature 61 degrees Fahrenheit. Sunny most days.
61°
68°
weather_sun
October, High crowds, average high temperature 68 degrees Fahrenheit, average low temperature 50 degrees Fahrenheit. Sunny most days.
50°
55°
weather_partly_sunny
November, Moderate crowds, average high temperature 55 degrees Fahrenheit, average low temperature 38 degrees Fahrenheit. Partly sunny.
38°
44°
weather_partly_sunny
December, Low crowds, average high temperature 44 degrees Fahrenheit, average low temperature 31 degrees Fahrenheit. Partly sunny.
31°
38°
weather_cloudy
January, Low crowds, average high temperature 38 degrees Fahrenheit, average low temperature 24 degrees Fahrenheit. Cloudy most days.
24°
42°
weather_partly_sunny
February, Low crowds, average high temperature 42 degrees Fahrenheit, average low temperature 26 degrees Fahrenheit. Partly sunny.
26°
55°
weather_partly_sunny
March, Moderate crowds, average high temperature 55 degrees Fahrenheit, average low temperature 38 degrees Fahrenheit. Partly sunny.
38°
65°
weather_sun
April, Low crowds, average high temperature 65 degrees Fahrenheit, average low temperature 46 degrees Fahrenheit. Sunny most days.
46°
Monthly weather averages (˚F)
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Top landmarks in O'Fallon

CarShield Field

You can catch an event at CarShield Field, located 1.2 mi (2 km) from central O'Fallon.

See properties in CarShield Field
CarShield Field

Learn more about O'Fallon

O'Fallon is well-known for its attractions such as CarShield Field and 9-11 Memorial. Visitors to this family-friendly city speak highly of the restaurants whereas sights include Mississippi River and Alligator Creek Aquatic Center.

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A tranquil hotel pool encircled by beautiful arches, enhancing the ambiance for leisure and relaxation.

Summer Getaway Sale

Save 25% or more on select hotels, and earn 50% more rewards on all properties. Book by May 26 and travel by Sep 30, 2025. See terms*
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Frequently asked questions

What hotels do travelers recommend in O'Fallon?
Sleep Inn & Suites O’Fallon MO - Technology Drive, Holiday Inn Express St. Louis West - O’Fallon by IHG and Hilton Garden Inn St. Louis/O’Fallon MO are all properties that our guests really like.
Where can I get free parking with my stay in O'Fallon?
Hilton Garden Inn St. Louis/O’Fallon MO offers the perk of free parking.
Can I book a refundable hotel in O'Fallon?
If you want the flexibility to change your plans to O’Fallon, most hotels offer refundable* bookable rates. You can find these properties by searching our site and using the “fully refundable” filter to narrow down the results.
Where can I stay with my pet in O'Fallon?
Your animal companion is welcome at these pet-friendly hotels: Comfort Inn & Suites St. Louis - O’Fallon, Super 8 by Wyndham O’Fallon MO/St. Louis Area, and Residence Inn by Marriott O’Fallon.
Which O'Fallon hotels do travelers like for their central location?
Our guests rave about the location of Comfort Inn & Suites St. Louis - O’Fallon.
Where should I consider staying in O'Fallon if I'm looking for a budget-friendly accommodation?
An inexpensive option worth considering is Comfort Inn & Suites St. Louis - O’Fallon.
Where can I stay in O'Fallon if I want a vacation rental instead of a hotel?
If you want to find a good alternative to a hotel, review our selection of 17 vacation homes.
Where can I stay if I'm traveling to O'Fallon with my kids?
Parents traveling with children may want to consider Residence Inn by Marriott O’Fallon.
What will the weather in O'Fallon be like during my trip?
July and August are typically the warmest months in O’Fallon when the average temp is 75°F. January and February are the coldest months when the average temperature is 37°F. May and April are the months with the most rain.
Why should I book my O'Fallon hotel through Hotels.com?
There are lots of reasons to book your O’Fallon trip with us: our free cancellations on selected hotels* gives you flexibility, and with One Key™, our rewards program, you will be able to earn and use OneKeyCash™** on all eligible bookings such as hotels, car rentals, flights, vacation rentals and more on Hotels.com, Expedia and Vrbo.

Terms and conditions

*Book by 5/26/2025 11:59 pm in hotel property local time. Stay between 4/17/2025-9/30/2025. Member Prices are available to Hotels.com® app users and One Key members. Limited availability, blackout periods may apply.

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