CA $209 Cheap Flight to Washington County

View CA $209 flight on Tue, Sep 29, 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at CA $209 for one-way flights and CA $348 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, May 20 - Tue, May 26
YYC
Calgary
STL
St. Louis
CA $437 Roundtrip, found 11 hours ago
CA $437
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, May 20 from Calgary to St. Louis, returning Tue, May 26, priced at CA $437 found 11 hours ago
United
Tue, Aug 18 - Sun, Sep 6
YYC
Calgary
STL
St. Louis
CA $476 Roundtrip, found 6 days ago
CA $476
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Calgary to St. Louis, returning Sun, Sep 6, priced at CA $476 found 6 days ago
American Airlines
Tue, May 19 - Tue, May 26
YYC
Calgary
STL
St. Louis
CA $490 Roundtrip, found 5 days ago
CA $490
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, May 19 from Calgary to St. Louis, returning Tue, May 26, priced at CA $490 found 5 days ago
Air Canada
Sat, Sep 12 - Sat, Sep 19
YYC
Calgary
STL
St. Louis
CA $492 Roundtrip, found 6 days ago
CA $492
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Sep 12 from Calgary to St. Louis, returning Sat, Sep 19, priced at CA $492 found 6 days ago
Delta
Wed, Aug 26 - Thu, Sep 10
YYC
Calgary
STL
St. Louis
CA $497 Roundtrip, found 4 days ago
CA $497
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Aug 26 from Calgary to St. Louis, returning Thu, Sep 10, priced at CA $497 found 4 days ago
American Airlines
Wed, May 20 - Tue, May 26
YYC
Calgary
STL
St. Louis
CA $498 Roundtrip, found 11 hours ago
CA $498
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, May 20 from Calgary to St. Louis, returning Tue, May 26, priced at CA $498 found 11 hours ago
United
Sat, Sep 5 - Sat, Sep 26
YYC
Calgary
STL
St. Louis
CA $500 Roundtrip, found 4 days ago
CA $500
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 5 from Calgary to St. Louis, returning Sat, Sep 26, priced at CA $500 found 4 days ago
Delta
Wed, Aug 5 - Wed, Aug 12
YYC
Calgary
STL
St. Louis
CA $506 Roundtrip, found 5 days ago
CA $506
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Aug 5 from Calgary to St. Louis, returning Wed, Aug 12, priced at CA $506 found 5 days ago
American Airlines
Tue, May 19 - Tue, May 26
YYC
Calgary
STL
St. Louis
CA $507 Roundtrip, found 5 days ago
CA $507
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, May 19 from Calgary to St. Louis, returning Tue, May 26, priced at CA $507 found 5 days ago
WestJet
Fri, Sep 11 - Mon, Sep 21
YWG
Winnipeg
STL
St. Louis
CA $545 Roundtrip, found 23 hours ago
CA $545
Roundtrip
found 23 hours ago
Select WestJet flight, departing Fri, Sep 11 from Winnipeg to St. Louis, returning Mon, Sep 21, priced at CA $545 found 23 hours ago

Trending flights to Washington County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Jul 4 - Mon, Jul 20
YVR
Vancouver
STL
St. Louis
CA $348 Roundtrip, found 6 days ago
CA $348
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Jul 4 from Vancouver to St. Louis, returning Mon, Jul 20, priced at CA $348 found 6 days ago

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
We know that things can change very quickly, so reserving a flexible ticket with Expedia is a wise idea. Simply click on "No change fee" underneath the "Flexible change policies" filter. Your well-priced and flexible flight to Washington County is only a few clicks away.
Which airlines fly to Washington County?
Decide on your vacation dates and then make your way towards Washington County with one of these great airlines:

  • Southwest Airlines - 2,907 flights to or near Washington County each month, including 2,907 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 810 flights to or near Washington County each month, including 810 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • United Airlines - 573 flights to or near Washington County each month, including 573 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Washington County?
An useful strategy for nabbing cheap fares is to be flexible with your travel dates. Begin with searching for your flight to Washington County, then click on the "flexible dates" box for a list of prices for nearby days. Want another good tip? Book in advance. For an idea of costs, CA $348 was the lowest price for a flight to Washington County in the last seven days.
How much is a flight to Washington County?
You could have locked in a return air ticket to Washington County from anywhere between CA $348 and CA $545 in the last seven days. For one-way journeys taking off from Calgary (YYC), the lowest amount paid during this period was just CA $209.
What are the most popular airports to fly into in Washington County?
Jet into Lambert-St. Louis Intl. Airport (STL) and experience everything that Washington County has to offer. As the region's main point of entry, roughly 5,094 flights land here every month.
When is the cheapest time to fly to Washington County?
If you can be flexible with what date you travel to Washington County, leave early on in the week. The most economical day to take off is normally Tuesday, followed closely by Monday. Saturday is typically the priciest day, with lots of vacationers preferring to take off on the weekend.
How much is a plane ticket to Washington County?
Ticket prices to Washington County varied from CA $348 to CA $545 in the last seven days. Typically, the earlier you book the better the deal.
What are the best things to do in Washington County?

  • With so many exciting things to do in Sullivan, it's no wonder lots of tourists start their Washington County escape in this lively city. Spend your first few days checking off popular attractions like Meramec Caverns before taking a look at some of this city's lesser-known spots.
  • When deciding the clothes to bring on your vacation, take into account that Sullivan has a humid subtropical climate. To give you a better picture of what to expect while you're there, look up the weather conditions before you go.
  • When you'd like to get out and experience more of this amazing region, hop in one of our affordable car rentals and make your way to Potosi. It's around 48 kilometres to the southeast of Sullivan and is also home to great tourist attractions, including Washington County Courthouse.

What is the best time to go to Washington County?
If you like your weather sizzling like a Southern barbecue, organize your trip to Washington County anytime after June 20. This is the beginning of summer, when temperatures typically fluctuate between 19ºC and 30ºC in the main city of Sullivan. April, June and July are the busiest months to explore this destination.
What months are the cheapest to book a flight to Washington County?
A cheap month to find a top deal to Washington County is February, while prices rise considerably in December. Avoid this time if you're on a tight budget.

Travel information

Washington County Flights Information

Airlines serving
American Airlines, Air Canada, Delta, United, WestJet
Roundtrip price
from CA $348
Washington County Flights Information

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