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O'Fallon

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O'Fallon Flights as Low as $58

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

Frontier Airlines
Sun, Aug 30 - Mon, Aug 31
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 6 hours ago
$58
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sun, Aug 30 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Aug 31, priced at $58 found 6 hours ago
Frontier Airlines
Wed, Jul 29 - Sat, Aug 1
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$63 Roundtrip, found 6 hours ago
$63
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Jul 29 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 1, priced at $63 found 6 hours ago
Delta
Sat, Aug 29 - Sat, Aug 29
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$114 Roundtrip, found 6 hours ago
$114
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Aug 29 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 29, priced at $114 found 6 hours ago
Delta
Tue, Sep 22 - Tue, Sep 29
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$117 Roundtrip, found 5 days ago
$117
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep 22 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Tue, Sep 29, priced at $117 found 5 days ago
American Airlines
Wed, Sep 2 - Sat, Sep 5
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$187 Roundtrip, just found
$187
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 2 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 5, priced at $187 just found
American Airlines
Wed, Sep 2 - Sat, Sep 5
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$187 Roundtrip, just found
$187
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 2 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Sep 5, priced at $187 just found
Bargain Flight
Tue, Aug 11 - Sat, Aug 22
MSP
Minneapolis - St. Paul Intl.
STL
Lambert-St. Louis Intl.
$193 Roundtrip, found 7 hours ago
$193
Roundtrip
found 7 hours ago
Select Bargain Flight flight, departing Tue, Aug 11 from Minneapolis - St. Paul Intl. to Lambert-St. Louis Intl., returning Sat, Aug 22, priced at $193 found 7 hours ago
Bargain Flight
Wed, Nov 11 - Sat, Nov 14
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Wed, Nov 11 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Sat, Nov 14, priced at $212 found 2 days ago
Frontier Airlines
Mon, Aug 17 - Sun, Aug 30
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$213 Roundtrip, found 2 days ago
$213
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Aug 17 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sun, Aug 30, priced at $213 found 2 days ago
Frontier Airlines
Mon, Aug 31 - Mon, Aug 31
RDU
Raleigh - Durham Intl.
STL
Lambert-St. Louis Intl.
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Aug 31 from Raleigh - Durham Intl. to Lambert-St. Louis Intl., returning Mon, Aug 31, priced at $259 found 1 day ago
Bargain Flight
Wed, Jul 29 - Tue, Aug 4
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$271 Roundtrip, found 2 days ago
$271
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Wed, Jul 29 from Norfolk Intl. to Lambert-St. Louis Intl., returning Tue, Aug 4, priced at $271 found 2 days ago
Bargain Flight
Tue, Jul 21 - Thu, Jul 23
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Tue, Jul 21 from San Diego Intl. to Lambert-St. Louis Intl., returning Thu, Jul 23, priced at $284 found 1 day ago
Bargain Flight
Wed, Dec 2 - Thu, Dec 3
SAN
San Diego Intl.
STL
Lambert-St. Louis Intl.
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select Bargain Flight flight, departing Wed, Dec 2 from San Diego Intl. to Lambert-St. Louis Intl., returning Thu, Dec 3, priced at $293 found 3 days ago
Delta
Tue, Nov 17 - Thu, Nov 26
ROC
Greater Rochester Intl.
STL
Lambert-St. Louis Intl.
$303 Roundtrip, found 17 hours ago
$303
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Nov 17 from Greater Rochester Intl. to Lambert-St. Louis Intl., returning Thu, Nov 26, priced at $303 found 17 hours ago
Bargain Flight
Sun, Aug 9 - Thu, Aug 13
MEM
Memphis Intl.
STL
Lambert-St. Louis Intl.
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Sun, Aug 9 from Memphis Intl. to Lambert-St. Louis Intl., returning Thu, Aug 13, priced at $365 found 1 day ago
Alaska Airlines
Wed, Sep 2 - Sat, Sep 5
PAE
Seattle Paine Field Intl. Airport
STL
Lambert-St. Louis Intl.
$408 Roundtrip, just found
$408
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Sep 2 from Seattle Paine Field Intl. Airport to Lambert-St. Louis Intl., returning Sat, Sep 5, priced at $408 just found

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 August, 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 10 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 Spirit of St. Louis 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 $58, 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 $58 right now, why wait?

O'Fallon Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$57

Last Minute Hotel Deals in O'Fallon

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
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 ...
9/10 Wonderful! (1,045 reviews)
"Staff was amazing; friendly, helpful and went above typical hotel experience. Fresh towels and toiletries were provided every day along with an extra set added without asking. Front desk was so great with any questions we had. We were there for a softball tournament and our last day we finished earlier ..."

Reviewed on Jul 17, 2026

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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
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. ...
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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
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 ...
7.6/10 Good! (1,011 reviews)
"Worst experience I’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 Jul 17, 2026

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Comfort Inn & Suites St. Louis - O'Fallon
Super 8 by Wyndham O'Fallon MO/St. Louis Area

Super 8 by Wyndham O'Fallon MO/St. Louis Area

2 out of 5
987 W Terra Ln O'Fallon MO
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 ...
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Super 8 by Wyndham O'Fallon MO/St. Louis Area
Staybridge Suites O'Fallon Chesterfield by IHG

Staybridge Suites O'Fallon Chesterfield by IHG

3 out of 5
1155 Technology Drive O'Fallon MO
Stay at this hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. Popular attractions Weldon ...
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Staybridge Suites O'Fallon Chesterfield by IHG
Residence Inn by Marriott O'Fallon

Residence Inn by Marriott O'Fallon

3 out of 5
101 Progress Point Ct. O'Fallon MO
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Popular attractions Golf Headquarters and Missouri ...
8.4/10 Very Good! (485 reviews)
"Breakfast good"

Reviewed on Jul 14, 2026

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Residence Inn by Marriott O'Fallon
Hollywood Casino & Hotel St. Louis

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive Maryland Heights MO
Book a stay at this business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the ...
8.6/10 Excellent! (2,180 reviews)
"Will be back for sure 😊"

Reviewed on Jul 16, 2026

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Hollywood Casino & Hotel St. Louis
Pear Tree Inn St. Louis Airport

Pear Tree Inn St. Louis Airport

2.5 out of 5
10810 Pear Tree Ln St. Ann MO
Book a stay at this business-friendly hotel in St. Ann. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
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Pear Tree Inn St. Louis Airport
See all 970 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.