O'Fallon Vacations

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    Save up to SARĀ 5,400 when you book a flight and hotel together*

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Find the Best O'Fallon Vacation Packages

O'Fallon Hotel Deals

Sleep Inn & Suites O'Fallon MO - Technology Drive

Sleep Inn & Suites O'Fallon MO - Technology Drive

2.5 out of 5
1147 Technology Drive O'Fallon MO
Fully refundableReserve now, pay when you stay
The price is SARĀ 315 per night from Jul 20 to Jul 21
SARĀ 315
SARĀ 371 total
20 Jul - 21 Jul
includes taxes & fees
Sleep Inn & Suites O'Fallon MO - Technology Drive
Holiday Inn Express St. Louis West - O'Fallon by IHG

Holiday Inn Express St. Louis West - O'Fallon by IHG

2.5 out of 5
1175 Technology Dr O'Fallon MO
Fully refundable
The price is SARĀ 333 per night from Aug 9 to Aug 10
SARĀ 333
SARĀ 393 total
9 Aug - 10 Aug
includes taxes & fees
Holiday Inn Express St. Louis West - O'Fallon by IHG
Comfort Inn & Suites St. Louis - O'Fallon

Comfort Inn & Suites St. Louis - O'Fallon

2.5 out of 5
100 Comfort Inn Ct O'Fallon MO
Fully refundable
The price is SARĀ 311 per night from Aug 16 to Aug 17
SARĀ 311
SARĀ 366 total
16 Aug - 17 Aug
includes taxes & fees
7.4/10 Good! (1,000 reviews)
"Worst experience Iā€™ve ever had! Staff was not helpful. Wall in first room was sinking in and wet. Wall was separating in halls. Rooms and carpet was FILTHY, second room had black mold! They refused a refund! And charged me a second night due to a booking error. I will NEVER stay at another comfort ..."

Reviewed on 17 July 2026

Comfort Inn & Suites St. Louis - O'Fallon
See all 977 properties in 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.

Stay near popular O'Fallon attractions

9-11 Memorial

7.6/10 (44 reviews)
This steel monument, crafted from World Trade Center wreckage, honors first responders who perished on 9/11. Visitors can also view a piece of the WTC's red steel core inside the O'Fallon Municipal Centre.
See properties

Frequently asked questions

How much does an O'Fallon vacation package cost?
You'll find cheap prices on Expedia for your O'Fallon break. However, factors like the hotel choice, length of stay and season will influence how much your vacation to O'Fallon costs.
What are the cheapest months to go to O'Fallon?
You can generally find reduced prices and greater availability in December, January and February. Browse our cheap O'Fallon vacation packages and you could score some excellent off-season deals.
How to find the best O'Fallon package deals?
Use Expedia's filters to help you find some fabulous O'Fallon package deals. When you start your search, simply set your maximum budget and then sort the results by "Price: low to high." If you want to save, plan your adventure for midweek, or search for O'Fallon package deals in the off-season. Play around with your travel dates and you may score even bigger discounts. As a rule of thumb, it's typically best to lock in your vacation package well in advance.
Is it cheaper to book an O'Fallon vacation as a package?
An Expedia vacation package could save you hundreds of dollars when compared to booking hotels and flights separately. Better still, you can personalize your O'Fallon trip to match your exact style. Choose your preferred flight time, select the hotel type and add a car rental. Check out our great deals to see how much you can save.
When to book a vacation package to O'Fallon?
If you're considering a spontaneous O'Fallon trip, browse our last-minute deals that can be booked up to one week before you go. Prefer not to wait until the last minute? You can land terrific deals on your flights and hotels by booking ahead.
How to plan a trip to O'Fallon?

  1. Pick the perfect time to travel: Your schedule, favorite season and the type of weather you enjoy can all impact your decision on when to visit O'Fallon.
  2. Budget wisely: Besides the price of your accommodations, you'll need to factor in other expenses too. These include food, flights and transportation. Also, put aside a little extra for unexpected expenses that could crop up during your trip to O'Fallon.
  3. Decide how long to go away for: Now that you know more about O'Fallon, you can work out the ideal length of your vacation. Pull together a rough itinerary and give yourself enough time for all the things you want to do.
  4. Combine your accommodations and airfare: Once you've nailed down your dates and duration, lock in the perfect O'Fallon vacation package for you.