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Flights to O'Fallon starting at $87

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How Much Does it Cost To Fly To O'Fallon?

The cheapest flights to O'Fallon found within the past 7 days were $87. Prices and availability subject to change. Additional terms may apply.

Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$87

roundtrip

just found

Open DEN to STL flights search result page
Wed, Sep 18 - Wed, Sep 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$91

roundtrip

found 3 hours ago

Open DEN to STL flights search result page
Wed, Jun 12 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$92

roundtrip

found 21 hours ago

Open DEN to STL flights search result page
Thu, Aug 22 - Mon, Aug 26

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$97

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$102

roundtrip

just found

Open DEN to STL flights search result page
Sat, Jun 15 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$107

roundtrip

found 10 hours ago

Open DEN to STL flights search result page
Sat, Sep 7 - Mon, Sep 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$111

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Mon, Jun 17 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$112

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Sat, Jun 15 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$117

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$121

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jun 11 - Wed, Jun 12

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$122

roundtrip

just found

Open DEN to STL flights search result page
Sat, Sep 7 - Mon, Sep 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$124

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$126

roundtrip

just found

Open DEN to STL flights search result page
Sat, Jun 8 - Sun, Jun 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$127

roundtrip

found 3 hours ago

Open DEN to STL flights search result page
Wed, Jun 12 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$128

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Fri, Jun 14 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$131

roundtrip

found 1 day ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$133

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$134

roundtrip

just found

Open DEN to STL flights search result page
Wed, Jun 12 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$136

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$137

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$137

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$140

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$141

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$142

roundtrip

just found

Open DEN to STL flights search result page
Wed, Jun 5 - Tue, Jun 25

Orlando Intl. (MCO)

to

Lambert-St. Louis Intl. (STL)

$142

roundtrip

found 7 hours ago

Open MCO to STL flights search result page
Fri, Jun 21 - Sun, Jun 23

O'Hare Intl. (ORD)

to

Lambert-St. Louis Intl. (STL)

$148

roundtrip

just found

Open ORD to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$154

roundtrip

just found

Open DEN to STL flights search result page
Sat, Sep 21 - Sat, Sep 28

Logan Intl. (BOS)

to

Lambert-St. Louis Intl. (STL)

$171

roundtrip

found 23 hours ago

Open BOS to STL flights search result page
Sat, Aug 24 - Tue, Aug 27

Los Angeles Intl. (LAX)

to

Lambert-St. Louis Intl. (STL)

$222

roundtrip

found 5 hours ago

Open LAX to STL flights search result page
Tue, Aug 13 - Tue, Aug 20

San Francisco Intl. (SFO)

to

Lambert-St. Louis Intl. (STL)

$224

roundtrip

found 9 hours ago

Open SFO to STL flights search result page
Wed, Sep 25 - Wed, Oct 2

Seattle - Tacoma Intl. (SEA)

to

Lambert-St. Louis Intl. (STL)

$226

roundtrip

found 5 hours ago

Open SEA to STL flights search result page
Sat, Oct 26 - Mon, Oct 28

Philadelphia Intl. (PHL)

to

Lambert-St. Louis Intl. (STL)

$234

roundtrip

found 2 days ago

Open PHL to STL flights search result page
Thu, Jun 20 - Mon, Jul 8

Miami Intl. (MIA)

to

Lambert-St. Louis Intl. (STL)

$265

roundtrip

found 1 day ago

Open MIA to STL flights search result page
Thu, Jun 13 - Thu, Jun 13

San Francisco Intl. (SFO)

to

Lambert-St. Louis Intl. (STL)

$296

roundtrip

found 2 days ago

Open SFO to STL flights search result page
Wed, May 29 - Wed, May 29

O'Hare Intl. (ORD)

to

Lambert-St. Louis Intl. (STL)

$300

roundtrip

found 1 hour ago

Open ORD to STL flights search result page
Tue, Jul 16 - Tue, Jul 23

Seattle - Tacoma Intl. (SEA)

to

Lambert-St. Louis Intl. (STL)

$312

roundtrip

found 4 days ago

Open SEA to STL flights search result page
Wed, Jan 22 - Tue, Jan 28

Los Angeles - Ontario Intl. (ONT)

to

Lambert-St. Louis Intl. (STL)

$353

roundtrip

found 6 days ago

Open ONT to STL flights search result page
Mon, Jun 3 - Tue, Jun 4

Mercer (TTN)

to

Lambert-St. Louis Intl. (STL)

$360

roundtrip

found 2 hours ago

Open TTN to STL flights search result page
Mon, Sep 30 - Wed, Oct 2

30th Street Rail Station (ZFV)

to

Lambert-St. Louis Intl. (STL)

$396

roundtrip

found 6 days ago

Open ZFV to STL flights search result page
Wed, May 29 - Wed, May 29

O'Hare Intl. (ORD)

to

Lambert-St. Louis Intl. (STL)

$300

roundtrip

found 1 hour ago

Open ORD to STL flights search result page
Wed, Jun 12 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$92

roundtrip

found 21 hours ago

Open DEN to STL flights search result page
Sat, Jun 15 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$107

roundtrip

found 10 hours ago

Open DEN to STL flights search result page
Mon, Jun 17 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$112

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Sat, Jun 15 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$117

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Tue, Jun 11 - Wed, Jun 12

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$122

roundtrip

just found

Open DEN to STL flights search result page
Sat, Jun 8 - Sun, Jun 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$127

roundtrip

found 3 hours ago

Open DEN to STL flights search result page
Wed, Jun 12 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$128

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Fri, Jun 14 - Mon, Jun 17

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$131

roundtrip

found 1 day ago

Open DEN to STL flights search result page
Wed, Jun 12 - Tue, Jun 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$136

roundtrip

found 4 hours ago

Open DEN to STL flights search result page
Wed, Jun 5 - Tue, Jun 25

Orlando Intl. (MCO)

to

Lambert-St. Louis Intl. (STL)

$142

roundtrip

found 7 hours ago

Open MCO to STL flights search result page
Fri, Jun 21 - Sun, Jun 23

O'Hare Intl. (ORD)

to

Lambert-St. Louis Intl. (STL)

$148

roundtrip

just found

Open ORD to STL flights search result page
Thu, Jun 20 - Mon, Jul 8

Miami Intl. (MIA)

to

Lambert-St. Louis Intl. (STL)

$265

roundtrip

found 1 day ago

Open MIA to STL flights search result page
Thu, Jun 13 - Thu, Jun 13

San Francisco Intl. (SFO)

to

Lambert-St. Louis Intl. (STL)

$296

roundtrip

found 2 days ago

Open SFO to STL flights search result page
Mon, Jun 3 - Tue, Jun 4

Mercer (TTN)

to

Lambert-St. Louis Intl. (STL)

$360

roundtrip

found 2 hours ago

Open TTN to STL flights search result page
Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$87

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$102

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jul 9 - Tue, Jul 16

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$142

roundtrip

just found

Open DEN to STL flights search result page
Tue, Jul 16 - Tue, Jul 23

Seattle - Tacoma Intl. (SEA)

to

Lambert-St. Louis Intl. (STL)

$312

roundtrip

found 4 days ago

Open SEA to STL flights search result page
Thu, Aug 22 - Mon, Aug 26

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$97

roundtrip

just found

Open DEN to STL flights search result page
Sat, Aug 24 - Tue, Aug 27

Los Angeles Intl. (LAX)

to

Lambert-St. Louis Intl. (STL)

$222

roundtrip

found 5 hours ago

Open LAX to STL flights search result page
Tue, Aug 13 - Tue, Aug 20

San Francisco Intl. (SFO)

to

Lambert-St. Louis Intl. (STL)

$224

roundtrip

found 9 hours ago

Open SFO to STL flights search result page
Wed, Sep 18 - Wed, Sep 18

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$91

roundtrip

found 3 hours ago

Open DEN to STL flights search result page
Sat, Sep 7 - Mon, Sep 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$111

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$121

roundtrip

just found

Open DEN to STL flights search result page
Sat, Sep 7 - Mon, Sep 9

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$124

roundtrip

found 3 days ago

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$126

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$133

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$134

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$137

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$137

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$140

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$141

roundtrip

just found

Open DEN to STL flights search result page
Thu, Sep 5 - Tue, Sep 10

Denver Intl. (DEN)

to

Lambert-St. Louis Intl. (STL)

$154

roundtrip

just found

Open DEN to STL flights search result page
Sat, Sep 21 - Sat, Sep 28

Logan Intl. (BOS)

to

Lambert-St. Louis Intl. (STL)

$171

roundtrip

found 23 hours ago

Open BOS to STL flights search result page
Wed, Sep 25 - Wed, Oct 2

Seattle - Tacoma Intl. (SEA)

to

Lambert-St. Louis Intl. (STL)

$226

roundtrip

found 5 hours ago

Open SEA to STL flights search result page
Mon, Sep 30 - Wed, Oct 2

30th Street Rail Station (ZFV)

to

Lambert-St. Louis Intl. (STL)

$396

roundtrip

found 6 days ago

Open ZFV to STL flights search result page
Sat, Oct 26 - Mon, Oct 28

Philadelphia Intl. (PHL)

to

Lambert-St. Louis Intl. (STL)

$234

roundtrip

found 2 days ago

Open PHL to STL flights search result page
Wed, Jan 22 - Tue, Jan 28

Los Angeles - Ontario Intl. (ONT)

to

Lambert-St. Louis Intl. (STL)

$353

roundtrip

found 6 days ago

Open ONT to STL flights search result page

Save 🕑&💰 | Book Your O'Fallon ✈️ & 🏨 Together

Save $65

Residence Inn by Marriott O'Fallon

3.0 out of 5.0

Fri, May 31 - Mon, Jun 3

Logan Intl. - Lambert-St. Louis Intl.

Old price

$588

The price now is $523 per person
Residence Inn by Marriott O'Fallon
Save $12

Sleep Inn and Suites

2.0 out of 5.0

Thu, Aug 8 - Sat, Aug 10

Minneapolis - St. Paul Intl. - Lambert-St. Louis Intl.

Old price

$279

The price now is $267 per person
Sleep Inn and Suites
Save $4

Comfort Inn and Suites O'Fallon

2.5 out of 5.0

Thu, Aug 8 - Sat, Aug 10

Minneapolis - St. Paul Intl. - Lambert-St. Louis Intl.

Old price

$268

The price now is $264 per person
Comfort Inn and Suites O'Fallon

Plane Tickets To O'Fallon

Although you may try and resist the urge, you know that when the travel bug comes, there is only one way to get rid of it. Thankfully, Travelocity is here to help nip that travel bug in the bud with great deals on flights to O'Fallon. Browse through our inventory to explore a wide range of cheap flights to O'Fallon to solidify your next big trip out of town. Whether you are heading out on a business trip, exploring a place you have never been for pleasure or are bringing the family on the annual vacation, we have the perfect getaway waiting for you. In no time, you will be day dreaming of your plane landing in O'Fallon as you anxiously await to exit the plane and explore what O'Fallon has to offer. Considering all the amazing local food and culture in O'Fallon, we won't hold this against you.

When you are ready to embark on your next big adventure, Travelocity will be right here waiting to open the doors to the garden so that you can go and smell the roses. When you decide to book and travel is entirely up to you, but don't wait too long because we have some of the best deals on the web and they won't last long. Take time to go through our huge selection of cheap flights to O'Fallon to find the best deals that fit into your budget. If browsing on your phone while your boss isn't looking is more your thing (we promise we won't tell), consider checking out Travelocity's mobile app which allows you to take advantage of all our flights to O'Fallon without having to compromise your work computer's search history. If you are looking to save even more, you can easily save up to $537 when you bundle one of our cheap flights to O'Fallon with one of our hotels. So why are you waiting around? There is no better time than now to start booking that next trip. Start your search now to book one of our flights to O'Fallon today!

O'Fallon Flights - Frequently Asked Questions

  • Question : Where can I find cheap flights to O'Fallon?
    Answer : We know you’re looking for the best flights at the lowest fares, so we found some of the sweetest deals in town just for you. Check out the top flight deals to O'Fallon. Act quickly and score yourself a bargain!

    *Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of April 15th, 2019 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.

  • Question : What are the most popular airlines that fly to O'Fallon?
    Answer : Some of the most popular airlines flying to O'Fallon are below. But before you check those out, we’ve got a secret for you. Did you know the airlines that fly to O'Fallon most frequently could also have the lowest airfares? So aim for the airlines that fly to O'Fallon most often and save a little extra on your next flight:
    • Delta Air Lines Flies 451 flight per week between and O'Fallon.
    • Southwest Airlines Flies 327 flights per week between and O'Fallon.
    • American Airlines Flies 299 flights per week between and O'Fallon.
  • Question : Which hotels are located near airports or major attractions in O'Fallon?
    Answer : We've put together a list of hotels in O'Fallon close to airports and popular sights to see. Check out the hotels below. All of them are within proximity to must-see attractions and major airports in and around the city of O'Fallon.
    • Super 8 Motel O'Fallon: Located in the heart of O'Fallon, this hotel is 1.9 mi (3 km) from Alligator Creek Aquatic Center and within 9 mi (15 km) of 9-11 Memorial and Mid Rivers Mall. Vietnam Veterans Memorial and Wentzville Flea Market are also within 9 mi (15 km). This hotel has a 2.00 star rating.
    • Hilton Garden Inn St. Louis/O'Fallon: Situated in O'Fallon, this hotel is 0.2 mi (0.3 km) from 9-11 Memorial and within 9 mi (15 km) of Broemmelsiek Park and Missouri Bluffs Golf Course. Alligator Creek Aquatic Center and Quail Ridge Park are also within 9 mi (15 km). This hotel has a 3.00 star rating.
    • Comfort Inn and Suites O'Fallon: Located in the heart of O'Fallon, this hotel is 2.2 mi (3.5 km) from Alligator Creek Aquatic Center and within 6 mi (10 km) of Mid Rivers Mall and Kokomo Joe's Family Fun Center. 9-11 Memorial and Vietnam Veterans Memorial are also within 12 mi (20 km). This hotel has a 2.50 star rating.
    • Holiday Inn Express St. Louis West - O'Fallon: Situated in the suburbs, this hotel is 3 mi (4.8 km) from Missouri Bluffs Golf Course and within 6 mi (10 km) of Weldon Spring Site Interpretive Center and 9-11 Memorial. St. Louis Premium Outlets and August A. Busch Memorial Conservation Area are also wi This hotel has a 2.50 star rating.
  • Question : What are the top car rental deals?
    Answer : Get around O'Fallon with ease after booking one of our great car hire deals. Check out our deals on the best car hires in O'Fallon to get started:
    • Nissan Versa, Ford Fiesta—a Compact car from Alamo—starting at only $31.00 per day.*
    • Mitsubishi Mirage—a Economy car from Enterprise—starting at only $35.00 per day.*
    • Ford Fiesta Sedan—a Economy car from Budget—starting at only $31.00 per day.*

    *Prices vary and will be updated when you view current car hire availability results. Deals displayed here are based on car hire pricing and availability as of April 15th, 2019 and may change as you get closer to the actual rental date. Deals displayed whose dates are in the past are no longer valid.

Travelers ❤️ These 🏨

Estimated price for 1 night/2 adults

Sleep Inn and Suites
Sleep Inn and Suites
2.0 out of 5.0 1147 Technology Drive, O'Fallon, MO
Free Cancellation
Reserve now, pay when you stay
$71
4.3/5 (3 reviews)

Clean, new, good hot breakfast, easy access, no complaints

Reviewed on Mar 19, 2019
Situated in O'Fallon, this hotel is 3 mi (4.8 km) from Missouri Bluffs Golf Course and within 6 mi (10 km) of 9-11 Memorial and Weldon Spring Site Interpretive ...
Holiday Inn Express St. Louis West - O'Fallon
Holiday Inn Express St. Louis West - O'Fallon
2.5 out of 5.0 1175 Technology Dr, O'Fallon, MO
Free Cancellation
Reserve now, pay when you stay
$103
4.5/5 (8 reviews)

Overall, it was a nice, clean, and comfortable. The breakfast area was a bit crowded. The Mexican restaurant next door was great. Not a bad place at all.

Reviewed on Jun 13, 2017
Situated in the suburbs, this hotel is 3 mi (4.8 km) from Missouri Bluffs Golf Course and within 6 mi (10 km) of Weldon Spring Site Interpretive Center and 9-11 ...
Super 8 by Wyndham O'Fallon MO/St. Louis Area
Super 8 by Wyndham O'Fallon MO/St. Louis Area
2.0 out of 5.0 987 W Terra Ln, O'Fallon, MO
Free Cancellation
Reserve now, pay when you stay
$60
3.5/5 (15 reviews)

Good value for price. Room was large and clean. Great location off highway.

Reviewed on Mar 24, 2019
Located in the heart of O'Fallon, this hotel is 1.9 mi (3 km) from Alligator Creek Aquatic Center and within 9 mi (15 km) of 9-11 Memorial and Mid Rivers Mall. ...

* This is the largest savings for simultaneous booking of flight and hotel from July 1, 2015 to June 30, 2016, and not the discount rate or amount for your booking. Savings calculated based on the cost of a Flight + Hotel booking on Travelocity.com as compared to the aggregated price of the full published fare given by the airline and the cost of your hotel for the same travel products for the same travel dates when made separately. Savings will vary based on the origin/destination, length of trip, stay dates and selected travel supplier(s). Savings are not available on all packages. Please confirm the actual discount rate/ price on the booking page.