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O'Fallon

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O'Fallon Flights as Low as $76

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$76 Roundtrip, found 1 day ago
$76
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $76 found 1 day ago
Delta
Wed, Jul 15 - Wed, Jul 15
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$114 Roundtrip, found 1 day ago
$114
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jul 15 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jul 15, priced at $114 found 1 day ago
American Airlines
Wed, Aug 12 - Tue, Aug 25
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 25, priced at $201 found 1 day ago
Delta
Tue, Jul 14 - Sat, Jul 25
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 14 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sat, Jul 25, priced at $209 found 1 day ago
United
Tue, Jul 28 - Sat, Aug 8
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 1 day ago
$210
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $210 found 1 day ago
Frontier Airlines
Tue, Aug 18 - Wed, Aug 19
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$210 Roundtrip, found 3 days ago
$210
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Aug 18 from Logan Intl. to Lambert-St. Louis Intl., returning Wed, Aug 19, priced at $210 found 3 days ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $250 found 1 day ago
Bargain Flight
Sat, Jul 4 - Tue, Jul 14
COS
Colorado Springs
STL
Lambert-St. Louis Intl.
$252 Roundtrip, found 23 hours ago
$252
Roundtrip
found 23 hours ago
Select Bargain Flight flight, departing Sat, Jul 4 from Colorado Springs to Lambert-St. Louis Intl., returning Tue, Jul 14, priced at $252 found 23 hours ago
Delta
Wed, Oct 14 - Tue, Oct 20
DAL
Love Field
STL
Lambert-St. Louis Intl.
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 14 from Love Field to Lambert-St. Louis Intl., returning Tue, Oct 20, priced at $257 found 1 day ago
Bargain Flight
Wed, Jul 1 - Sat, Jul 4
MEM
Memphis Intl.
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 5 days ago
$263
Roundtrip
found 5 days ago
Select Bargain Flight flight, departing Wed, Jul 1 from Memphis Intl. to Lambert-St. Louis Intl., returning Sat, Jul 4, priced at $263 found 5 days ago
Delta
Thu, Jul 30 - Mon, Aug 17
ATW
Appleton Intl.
STL
Lambert-St. Louis Intl.
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul 30 from Appleton Intl. to Lambert-St. Louis Intl., returning Mon, Aug 17, priced at $289 found 1 day ago
Delta
Wed, Nov 18 - Tue, Dec 1
ROC
Greater Rochester Intl.
STL
Lambert-St. Louis Intl.
$303 Roundtrip, found 1 day ago
$303
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 18 from Greater Rochester Intl. to Lambert-St. Louis Intl., returning Tue, Dec 1, priced at $303 found 1 day ago
Delta
Thu, Jul 30 - Thu, Aug 27
YYZ
Pearson Intl.
STL
Lambert-St. Louis Intl.
$474 Roundtrip, found 1 day ago
$474
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul 30 from Pearson Intl. to Lambert-St. Louis Intl., returning Thu, Aug 27, priced at $474 found 1 day ago
Alaska Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$492 Roundtrip, found 1 day ago
$492
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $492 found 1 day ago
WestJet
Thu, Jul 30 - Thu, Aug 27
YYZ
Pearson Intl.
STL
Lambert-St. Louis Intl.
$537 Roundtrip, found 1 day ago
$537
Roundtrip
found 1 day ago
Select WestJet flight, departing Thu, Jul 30 from Pearson Intl. to Lambert-St. Louis Intl., returning Thu, Aug 27, priced at $537 found 1 day ago
Air Canada
Thu, Jul 30 - Thu, Aug 27
YYZ
Pearson Intl.
STL
Lambert-St. Louis Intl.
$580 Roundtrip, found 1 day ago
$580
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Jul 30 from Pearson Intl. to Lambert-St. Louis Intl., returning Thu, Aug 27, priced at $580 found 1 day ago

Cheap Flights to O'Fallon

Fall in love at first flight with your vacation to O'Fallon by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to O'Fallon on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in O'Fallon, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to O'Fallon

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to O'Fallon with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the STL airport.

What is the cheapest month to fly to O'Fallon?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to O'Fallon are in July, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to O'Fallon?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 14 to choose from for your flight to O'Fallon.

What airport is best to fly into O'Fallon?

When you’re planning your trip to O'Fallon, convenience is the name of the game. Luckily, O'Fallon Lambert-St. Louis Intl. Airport is nearby so you can deplane and get going on checking off everything on your O'Fallon must-do list.

How much are flights to O'Fallon?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to O'Fallon on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $76, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to O'Fallon?

The trick to saving a stack of cash on your flight to O'Fallon? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $76 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$76

Last Minute Hotel Deals in O'Fallon

Super 8 by Wyndham O'Fallon

Super 8 by Wyndham O'Fallon

2 out of 5
1100 Eastgate Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
6.8/10 (1,011 reviews)
"This is only my personal experience, which lasted almost a week. Take it for what it is, and if you don't believe me, seeing is believing. The entire property was littered in garbage: to go cups; fast food wrappers, boxes, and plastic bags; dog feces; random leftover loafs of bread. The garbage cans ..."

Reviewed on Jun 18, 2026

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Super 8 by Wyndham O'Fallon
Drury Inn & Suites St. Louis O'Fallon, IL

Drury Inn & Suites St. Louis O'Fallon, IL

3 out of 5
1118 Central Park Drive O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.6/10 Exceptional! (1,003 reviews)
"The entire property was clean and well maintained. Great location! The free breakfast and kickback at 5:30 was a welcomed surprise! We felt taken care of all around."

Reviewed on Jun 18, 2026

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Drury Inn & Suites St. Louis O'Fallon, IL
Welcome Suites

Welcome Suites

2 out of 5
148 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and a fitness center. Popular attractions O'Fallon Family Sports Park ...
5.8/10 (278 reviews)
"1. I always do the book now and pay later so I know what I’m paying for when I get to the hotel 2. I called the hotel to make sure me arriving early the next morning was ok and they said yes and for some reason they checked me in and charged my card. 3. I wasn’t made aware of that til I went to cancel ..."

Reviewed on Jun 8, 2026

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Welcome Suites
Quality Inn O'Fallon IL - St. Louis

Quality Inn O'Fallon IL - St. Louis

3 out of 5
1409 W US 50 O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7.4/10 Good! (1,000 reviews)
"Lady at the desk was pleasant. Room was clean and pleasant."

Reviewed on Jun 17, 2026

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Quality Inn O'Fallon IL - St. Louis
Sleep Inn O'Fallon near I-64

Sleep Inn O'Fallon near I-64

2.5 out of 5
140 Venita Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7/10 Good! (970 reviews)
"At least the rooms were clean"

Reviewed on Jun 19, 2026

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Sleep Inn O'Fallon near I-64
Comfort Inn & Suites O'Fallon - St. Louis Area

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

2 out of 5
116 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. ...
6.4/10 (157 reviews)
"All the sheets, towels, and linens were stained. We had to request another room to get sheets that were less stained but still stained. The front desk could care less about service and acted like we were a bother. The breakfast nook is dirty and not maintained. I would not stay here again."

Reviewed on Jun 18, 2026

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Comfort Inn & Suites O'Fallon - St. Louis Area
Baymont by Wyndham O'Fallon St. Louis Area

Baymont by Wyndham O'Fallon St. Louis Area

2.5 out of 5
1320 Park Plaza Drive O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Popular attractions O'Fallon Family Sports Park and ...
5.6/10 (490 reviews)
"My nonsmoking room was clean, but it smelled like smoke. Same for the hallways and elevator. In addition, the deadbolt lock on my door was broken. Carpet in room was worn, as well as scratches on the bathroom door. Check in/check out was easy. I will not be staying here again…"

Reviewed on Jun 18, 2026

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Baymont by Wyndham O'Fallon St. Louis Area
Hampton Inn O'Fallon

Hampton Inn O'Fallon

2.5 out of 5
430 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
9.2/10 Wonderful! (853 reviews)
"Staff were very friendly. The only begi"

Reviewed on Jun 2, 2026

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Hampton Inn O'Fallon
See all 1,401 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.