Cheap Flights to Washington County from $34 (2026/2027)

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A cave with stalactites and a metal walkway.

Sullivan

Flights
Sullivan
A wooden pier extending into a misty lake with a person in a yellow dress standing at the end.

Potosi

Flights
Potosi

How Much Does it Cost To Fly To Washington County?

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

Fri, Nov 13 - Wed, Nov 18
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$56 Roundtrip, found 4 days ago
$56
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Fri, Nov 13 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Nov 18, priced at $56 found 4 days ago
Sat, Dec 5 - Wed, Dec 9
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 4 days ago
$58
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Dec 5 from Denver Intl. to Lambert-St. Louis Intl., returning Wed, Dec 9, priced at $58 found 4 days ago
Sat, Nov 7 - Fri, Nov 13
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$105 Roundtrip, found 4 days ago
$105
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Nov 7 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Fri, Nov 13, priced at $105 found 4 days ago
Wed, Nov 25 - Wed, Dec 2
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Nov 25 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $160 just found
Fri, Oct 23 - Sun, Oct 25
DFW
Dallas-Fort Worth Intl.
TBN
St. Robert Regional
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Fri, Oct 23 from Dallas-Fort Worth Intl. to St. Robert Regional, returning Sun, Oct 25, priced at $208 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
DFW
Dallas-Fort Worth Intl.
CGI
Cape Girardeau Municipal
$262 Roundtrip, found 4 days ago
$262
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Wed, Oct 21 from Dallas-Fort Worth Intl. to Cape Girardeau Municipal, returning Mon, Oct 26, priced at $262 found 4 days ago
Mon, Nov 9 - Mon, Nov 16
DAL
Love Field
STL
Lambert-St. Louis Intl.
$300 Roundtrip, found 2 days ago
$300
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Mon, Nov 9 from Love Field to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $300 found 2 days ago
Mon, Nov 9 - Tue, Jan 5
DEN
Denver Intl.
COU
Columbia Regional
$313 Roundtrip, found 1 day ago
$313
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 9 from Denver Intl. to Columbia Regional, returning Tue, Jan 5, priced at $313 found 1 day ago
OriginDestinationTravel DatesFlights From*
DENSt. LouisDecember 9 to December 11$104
SEASt. LouisNovember 25 to December 2$160
DFWScott CityOctober 21 to October 26$262
DENColumbiaNovember 9 to January 5$313
ATLColumbiaNovember 13 to November 15$333
SEAColumbiaOctober 23 to October 26$409
ATLFort Leonard WoodJanuary 4 to January 6$426
JFKFort Leonard WoodNovember 3 to November 6$452
DENFort Leonard WoodOctober 29 to November 1$493
DENScott CityDecember 2 to December 4$534
LAXScott CityDecember 15 to January 5$536
DFWColumbiaNovember 22 to November 29$562
LGAFort Leonard WoodDecember 3 to December 6$601
SEAFort Leonard WoodOctober 31 to November 5$626
LAXFort Leonard WoodDecember 17 to December 18$670
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
PIEMascoutahOctober 9 to October 19$219
TPASt. LouisOctober 9 to October 12$331
DFWSt. LouisOctober 10 to October 12$391
DENColumbiaOctober 11 to October 17$403
SEASt. LouisOctober 10 to October 17$416
TTNSt. LouisOctober 10 to October 16$430
ATLSt. LouisOctober 9 to October 11$436
LAXSt. LouisOctober 9 to October 12$492
DFWScott CityOctober 9 to October 19$499
JFKSt. LouisOctober 10 to October 14$513
DENSt. LouisOctober 11 to October 15$519
LGASt. LouisOctober 11 to October 14$531
TPAColumbiaOctober 9 to October 12$610
JFKFort Leonard WoodOctober 9 to October 12$1,292
*Prices include taxes and fees

Best Washington County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Dec 22 - Dec 28

6 night stay

Denver (DEN) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Denver (DEN)

Frontier Airlines • Coach
Save 100% on your flight
Price was $1,106, price is now $620 per person
$620
per person
found 1 day ago
Residence Inn by Marriott St. Louis West County
3.0-star property

Residence Inn by Marriott St. Louis West County

Oct 18 - Oct 25

7 night stay

Orlando (MCO) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,468, price is now $950 per person
$950
per person
found 6 hours ago
Moonrise Hotel
4.0-star property

Moonrise Hotel

Dec 22 - Dec 28

6 night stay

Denver (DEN) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Denver (DEN)

Frontier Airlines • Coach
Price was $1,054, price is now $752 per person
$752
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Denver to Washington County
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Travelers ❤️ These Washington County 🏨

Super 8 by Wyndham Potosi

Super 8 by Wyndham Potosi

2 out of 5
820 E High St Potosi MO
Book a stay at this business-friendly motel in Potosi. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms in our reviews.
7.2/10 Good! (420 reviews)
"Breakfast was great and staff"

Reviewed on Sep 29, 2026

Opens in a new windowSuper 8 by Wyndham Potosi
Baymont Inn and Suites by Wyndham Farmington, MO

Baymont Inn and Suites by Wyndham Farmington, MO

2.5 out of 5
1625 W Columbia St Farmington MO
Book a stay at this business-friendly hotel in Farmington. Enjoy free breakfast, free parking, and an outdoor pool. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Farmington Water Park and Wilson Rozier Park are located nearby.
Opens in a new windowBaymont Inn and Suites by Wyndham Farmington, MO
Comfort Inn Festus - St Louis South

Comfort Inn Festus - St Louis South

2.5 out of 5
1303 Veterans Blvd Festus MO
Book a stay at this business-friendly hotel in Festus. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Sunset Park and Jorkerst Memorial Park are located nearby.
7.8/10 Good! (1,001 reviews)
"May be OK for One night but not any longer"

Reviewed on Oct 4, 2026

Opens in a new windowComfort Inn Festus - St Louis South
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Postcard Cabins St Francois, Outdoor Collection by Marriott Bonvoy

Postcard Cabins St Francois, Outdoor Collection by Marriott Bonvoy

2 out of 5
7555 State Hwy Y French Village MO
Stay at this cabin in French Village. Enjoy free parking, patios, and climate control.
10/10 Exceptional! (110 reviews)
"The stay here gets better every time."

Reviewed on Oct 3, 2026

Opens in a new windowPostcard Cabins St Francois, Outdoor Collection by Marriott Bonvoy
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.

Frequently asked questions

How much is the cheapest flight to Washington County?
Travelers booked a roundtrip flight to Washington County for as little as $56 in the last seven days. If you spot a fare you like, book fast. Cheap deals don't wait around for long! This price was available on Travelocity for flights to Washington County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to Washington County?
If you're planning an escape to Washington County, November is the cheapest month to make your way there. This is according to Travelocity's direct return flight demand between January and December last year. Pick your dates and secure your flights today.
How can I check my flight status to Washington County?
Whether you'd like to confirm the status of your flight to Washington County or amend your journey, you'll find all the details you need on our customer portal, Trips. Click on "Trips" at the top right of our homepage, then sign in or create an account. Another simple way to access and manage all your bookings is with the Travelocity app. Get useful travel alerts right when you need them and easily share updates with any friends or family flying with you.
How do I find the best deals on flights to Washington County?
It's good to book in advance, and if possible, avoid flying during busy peak periods. Another smart way to save is by hitting the "Flexible dates" box at the top of the page after searching for your flights. You'll then see prices for nearby days. In the last seven days, the lowest price for a roundtrip flight to Washington County was $56. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Washington County with Travelocity?
An amazing getaway is only a click or two away when you plan your trip with Travelocity. With a wide selection of choices and great deals on cheap family flights, places to stay, rental cars and more, we make it easy to locate the best prices for you. You can also use our 24/7 customer assistance and free cancellations on most activities and hotels during every stage of the process. Wander with us and secure your cheap flights to Washington County today.
What are the most popular flight routes to Washington County?
Check out these leading flight routes to Washington County and start organizing your dream escape:

  • Chicago, IL (ORD-O'Hare Intl.) to Lambert-St. Louis Intl. Airport (STL) - 2,049 flights a month.
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1,503 flights a month.
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1,300 flights a month.

How much is a flight to Washington County on average?
Based on prices found over the last seven days, roundtrip flights to Washington County cost between $56 and $1,292. Whenever you're ready to take off, Travelocity will help you find a fare that'll suit your budget. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
How long is the average flight to Washington County?
The duration of a direct flight to Washington County differs, but these are the average airborne times for a few main routes:

  • Chicago, IL (ORD-O'Hare Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 23 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 37 minutes
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 49 minutes

What can I expect on a flight to Washington County?
If you're catching a long-haul flight to Washington County, you can typically expect drinks, meals and entertainment on board. Airlines try to make longer flights as pleasant as possible. Quicker journeys — as well as flights with budget airlines — may have less inclusions. If you're looking for cheap flights for family vacations with a budget carrier, be prepared to pay extra for entertainment and food.