$20 Cheap flights to Monroe County

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap flights to Monroe County from $20 One Way, $39 Round Trip

$39 return flights and $20 one-way flights to Monroe County were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 24 - Mon, Oct 26
DEN
Denver
STL
St. Louis
$39 Roundtrip, found 20 hours ago
$39
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Sat, Oct 24 from Denver to St. Louis, returning Mon, Oct 26, priced at $39 found 20 hours ago
Wed, Oct 21 - Mon, Oct 26
ATL
Atlanta
STL
St. Louis
$42 Roundtrip, found 4 days ago
$42
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Wed, Oct 21 from Atlanta to St. Louis, returning Mon, Oct 26, priced at $42 found 4 days ago
Sat, Nov 7 - Wed, Nov 11
PHX
Phoenix
STL
St. Louis
$71 Roundtrip, found 1 day ago
$71
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Nov 7 from Phoenix to St. Louis, returning Wed, Nov 11, priced at $71 found 1 day ago
Fri, Oct 30 - Sat, Oct 31
LAX
Los Angeles
STL
St. Louis
$77 Roundtrip, found 1 day ago
$77
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Oct 30 from Los Angeles to St. Louis, returning Sat, Oct 31, priced at $77 found 1 day ago
Fri, Oct 16 - Mon, Oct 19
FLL
Fort Lauderdale
BLV
Belleville
$78 Roundtrip, found 10 hours ago
$78
Roundtrip
found 10 hours ago
Select Allegiant Air flight, departing Fri, Oct 16 from Fort Lauderdale to Belleville, returning Mon, Oct 19, priced at $78 found 10 hours ago
Fri, Nov 13 - Mon, Nov 16
GUF
Gulf Shores
BLV
Belleville
$83 Roundtrip, found 2 days ago
$83
Roundtrip
found 2 days ago
Select Allegiant Air flight, departing Fri, Nov 13 from Gulf Shores to Belleville, returning Mon, Nov 16, priced at $83 found 2 days ago
Thu, Nov 5 - Fri, Nov 13
VPS
Fort Walton Beach
BLV
Belleville
$85 Roundtrip, found 2 days ago
$85
Roundtrip
found 2 days ago
Select Allegiant Air flight, departing Thu, Nov 5 from Fort Walton Beach to Belleville, returning Fri, Nov 13, priced at $85 found 2 days ago
Fri, Dec 4 - Mon, Dec 7
PIE
St. Petersburg
BLV
Belleville
$99 Roundtrip, found 3 hours ago
$99
Roundtrip
found 3 hours ago
Select Allegiant Air flight, departing Fri, Dec 4 from St. Petersburg to Belleville, returning Mon, Dec 7, priced at $99 found 3 hours ago
Sat, Oct 24 - Wed, Oct 28
DFW
Dallas
STL
St. Louis
$114 Roundtrip, found 1 day ago
$114
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Oct 24 from Dallas to St. Louis, returning Wed, Oct 28, priced at $114 found 1 day ago
Thu, Jan 21 - Thu, Jan 28
SRQ
Sarasota
BLV
Belleville
$116 Roundtrip, found 5 days ago
$116
Roundtrip
found 5 days ago
Select Allegiant Air flight, departing Thu, Jan 21 from Sarasota to Belleville, returning Thu, Jan 28, priced at $116 found 5 days ago
Thu, Oct 22 - Sat, Oct 31
SFB
Orlando
BLV
Belleville
$117 Roundtrip, found 3 hours ago
$117
Roundtrip
found 3 hours ago
Select Allegiant Air flight, departing Thu, Oct 22 from Orlando to Belleville, returning Sat, Oct 31, priced at $117 found 3 hours ago
Wed, Nov 4 - Wed, Nov 18
ATL
Atlanta
STL
St. Louis
$117 Roundtrip, found 3 days ago
$117
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Nov 4 from Atlanta to St. Louis, returning Wed, Nov 18, priced at $117 found 3 days ago

Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
DFWSt. LouisOctober 3 to October 11$336
EWRSt. LouisOctober 4 to October 5$388
SEASt. LouisOctober 3 to October 4$413
DENSt. LouisOctober 3 to October 4$430
ATLSt. LouisOctober 4 to October 5$436
LAXSt. LouisOctober 3 to October 10$436
PHLSt. LouisOctober 4 to October 5$436
TPASt. LouisOctober 3 to October 6$495
LGASt. LouisOctober 3 to October 4$538
*Prices include taxes and fees

Find The Perfect Hotel For After Your Flight

Score Epic Monroe County Accommodation Deals

Clayton Plaza Hotel & Extended Stay

Clayton Plaza Hotel & Extended Stay

3.5 out of 5
7750 Carondelet Avenue St. Louis MO
Fully refundableReserve now, pay when you stay
$92 nightly
The price is $108 total per night from Oct 11 to Oct 12
$108 total
Oct 11 - Oct 12
Total with taxes and fees
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and ...
8.8/10 Excellent! (3,439 reviews)
"Missed 3 wake up call requests. Almost missed flight connection."

Reviewed on Sep 30, 2026

Opens in a new windowClayton Plaza Hotel & Extended Stay
Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Fully refundableReserve now, pay when you stay
$134 nightly
The price is $158 total per night from Oct 2 to Oct 3
$158 total
Oct 2 - Oct 3
Total with taxes and fees
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean ...
Opens in a new windowHyatt Regency St. Louis at The Arch
Pear Tree Inn St. Louis Airport

Pear Tree Inn St. Louis Airport

2.5 out of 5
10810 Pear Tree Ln St. Ann MO
Fully refundableReserve now, pay when you stay
$90 nightly
The price is $106 total per night from Oct 5 to Oct 6
$106 total
Oct 5 - Oct 6
Total with taxes and fees
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 ...
9.2/10 Wonderful! (3,264 reviews)
"Stay here every time 24 hour fountain drinks and coffee in the lobby. We leave our car here till we return from the airport. They have a 24 hour shuttle no complaints."

Reviewed on Oct 1, 2026

Opens in a new windowPear Tree Inn St. Louis Airport
Save an average of 15% on thousands of hotels when you're signed in
Sign in
Sign up, it's free
Renaissance St. Louis Airport Hotel

Renaissance St. Louis Airport Hotel

4 out of 5
9801 Natural Bridge Road St. Louis MO
Fully refundableReserve now, pay when you stay
$118 nightly
The price is $138 total per night from Oct 15 to Oct 16
$138 total
Oct 15 - Oct 16
Total with taxes and fees
Book a stay at this business-friendly hotel in St. Louis. Enjoy an outdoor pool, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful ...
8.4/10 Very Good! (1,189 reviews)
"Hotel is beautiful within itself"

Reviewed on Sep 30, 2026

Opens in a new windowRenaissance St. Louis Airport Hotel
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.

Need a Car For After Your Flight?

Midsize

Toyota Corolla
  • 5 people
  • Unlimited mileage
Saint Louis, Missouri, USA
Toyota Corolla

$66

$254 total
found 1 day ago
Midsize Toyota Corolla

Economy

Mitsubishi Mirage
  • 4 people
  • Unlimited mileage
Saint Louis, Missouri, USA
Mitsubishi Mirage

$67

$256 total
found 1 day ago
Economy Mitsubishi Mirage

Compact

Nissan Versa
  • 5 people
  • Unlimited mileage
Saint Louis, Missouri, USA
Nissan Versa

$67

$256 total
found 1 day ago
Compact Nissan Versa

Mini Van

Chrysler Pacifica
  • 7 people
  • Unlimited mileage
Saint Louis, Missouri, USA
Chrysler Pacifica

$70

$267 total
found 1 day ago
Mini Van Chrysler Pacifica

Monroe County

Get the absolute lowest prices on flights to Monroe County by shopping with Orbitz. Orbitz is the most efficient travel planner around, allowing you to search, compare and book discount domestic and international flights fast. With cutting-edge mobile tools and access to frequent flier rewards programs, we have everything you need for both your routine and holiday excursions.

Book Your Flight To Monroe County Using Your Mobile Device

New mobile app tools enable those with hand-held devices to scout out the best bargains and to secure tickets from any location. If you have an iPhone, iPad or Android device, you may take advantage of special discounts, only available to mobile device customers, when you book hotel rooms or car rentals on the same day as booking Monroe County flights.

Avoid Check-In Hassles When Traveling On Flights to Monroe County

Orbitz also provides an array of resources that can help you eliminate most check-in hassles. Detailed baggage information is continually available for Monroe County flights. Mobile apps can also be used to share travel itineraries with family members or business associates.

Keeping Everyone Up To Date

When you download the free Orbitz mobile phone app, you can get regular and free flight updates. These will keep you informed of important scheduling changes. Updates can even be sent to several contacts, helping to keep everyone current on anticipated arrival times and all other relevant flight details.

Orbitz makes traveling on a budget very easy to do. We provide everything you need to plan your ideal trip from start to finish. Getting there and back again is a snap when you book your Monroe County flight using Orbitz.

Frequently asked questions

Which airlines fly to Monroe County?
Check out the deals from the 24 airlines that offer services to Monroe County. Whether you want to get comfy in first class or save dollars in economy, they'll have a seat for you. Jet off to Lambert-St. Louis Intl. Airport (STL) with one of these top carriers:

  • Air Canada - 35 flights to Monroe County per month
  • Frontier Airlines - 17 flights to Monroe County per month
  • Lufthansa - 3 flights to Monroe County per month

How much is a flight to Monroe County?
If you're hunting down a return flight, airfares fluctuated between $39 and $538 this past week. The cheapest prices for one-way tickets were $20, from Denver (DEN).
How to book the cheapest flight to Monroe County?
With some of the most competitive flight deals around, you're guaranteed value for money with Orbitz. The following handy hints will help you snap up cheap flights to Monroe County — and leave you with more cash to splash:

  • Departing from or landing at nearby airports can work out to be cheaper. Enter your preferred departure and arrival points. Next, select the 'Nearby airports' function below to look through your options.
  • Also, click on the 'Show flexible dates' option to compare the prices on days either side of your chosen departure. You may be able to find cheaper flight deals if your travel plans are flexible.
  • Hit 'Show options' to narrow down your search results. You can pick your preferred seating class and airline here. Under 'Sort & Filter' to the left, you can even select whether you want to fly in the morning, afternoon or evening.
  • Once you've figured out your travel dates, book your flight. Ticket prices usually become more expensive as the departure date gets closer.
  • Think about bundling your flights, hotels and car rentals into a package deal with Orbitz to stretch your budget even further.
  • Don't fly during the busy season if possible. By avoiding summer and school vacations, you can make amazing savings on your airfare.

What is the best time to book a flight to Monroe County?
If your schedule allows, book your seats to Monroe County in January. This is the best month to get low airfares, closely followed by February and August. With a little planning, you're bound to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to Monroe County?
You can get a great flight deal by making a booking on a Tuesday, Wednesday or Saturday. Typically, these are the best days to pick up cheap tickets to Monroe County.
What is the cheapest day of the week to fly to Monroe County?
According to Orbitz data from 2020, you ought to start your vacation on a Monday to score cheap flights to Monroe County. Next most affordable day? Tuesday. Saturday will set you back the most. So, think about leaving early in the week if you'd love to book a wallet-friendly fare without paying premium prices.
What is the cheapest month to fly to Monroe County?
To pick up cheap flights to Monroe County, you should pack your suitcase and travel in August. Orbitz data has found that this is generally an excellent month to save on your fare. If you're hoping to fly to Monroe County during June, it's worth remembering that this is the least affordable time of year to take a trip.
Which airlines allow free cancellation?
Life changes, and we think your ticket should be able to as well. That's why Orbitz makes it a snap to search for airlines with no change fees and free cancellation. Simply enter your departure and arrival destinations and then click on "Filter by flexible change policies." How's that for fuss-free?
What do I need for the flight to Monroe County?
Flying doesn't have to be a drag. In fact it can be a joy if you're well prepared! Make your trip a hassle-free one with the following useful hints:

  • Whether you print it out at home or use an electronic one, you'll need your boarding pass to get on to the plane. You'll also need some sort of government-issued ID. If you're traveling internationally, make sure your passport is valid and you've checked visa requirements.
  • Take some activities to keep you entertained on your journey to Monroe County. Books, magazines and electronic devices like tablets and e-readers are good ideas. Make sure you take a refillable water bottle too. Even on a short flight, it's important to remain well-hydrated.
  • It can get very cool on the plane. If you'd prefer not to shiver your way through the flight, wear an extra layer.

How do I get cheap first-class/business deals to Monroe County?
If you think a business or first-class fare is way out of your reach, you may want to think again. Here are some practical tips to help you score a premium flight to Monroe County for less:

  • Be flexible with your travel dates and wait for deals on business or first-class airfares.
  • Plenty of budget airlines these days offer excellent business or premium-class seating for a wallet-friendly price.
  • Bid for an upgrade in online auctions or upgrade with points earned through loyalty programs.

What is the best time to go to Monroe County?
Anytime is a fantastic time to head to Monroe County, though May, June and July are the busiest months. As with most places in the Northern Hemisphere, the summer commences June 20. If you'd like to hang out in a lightweight top than a thick winter coat, this time of year would suit you nicely. Expect average daily highs of 85 ºF and nightly lows around 65 ºF.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.