Cheap Flights to Washington County from ₩263,900

View ₩263,900 flight on Mon, Aug 24, 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest Airlines

  • Alaska Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Washington County?

Prices were available within the past 7 days and start at ₩263,900 for one-way flights and ₩716,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩716,200 Roundtrip, found 6 days ago
₩716,200
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩716,200 found 6 days ago
Delta
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩730,800 Roundtrip, found 6 days ago
₩730,800
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩730,800 found 6 days ago
United
Sat, Jun 13 - Sat, Jun 20
LAX
Los Angeles
STL
St. Louis
₩750,000 Roundtrip, found 1 day ago
₩750,000
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jun 13 from Los Angeles to St. Louis, returning Sat, Jun 20, priced at ₩750,000 found 1 day ago
American Airlines
Sat, Jun 13 - Sat, Jun 20
ONT
Ontario
STL
St. Louis
₩760,300 Roundtrip, found 1 day ago
₩760,300
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jun 13 from Ontario to St. Louis, returning Sat, Jun 20, priced at ₩760,300 found 1 day ago
American Airlines
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩766,200 Roundtrip, found 6 days ago
₩766,200
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩766,200 found 6 days ago
Delta
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩770,600 Roundtrip, found 6 days ago
₩770,600
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩770,600 found 6 days ago
Delta
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩776,700 Roundtrip, found 6 days ago
₩776,700
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩776,700 found 6 days ago
American Airlines
Wed, Jun 10 - Sun, Jun 14
LAX
Los Angeles
STL
St. Louis
₩778,000 Roundtrip, found 6 days ago
₩778,000
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jun 10 from Los Angeles to St. Louis, returning Sun, Jun 14, priced at ₩778,000 found 6 days ago
Qatar Airways
Fri, Sep 4 - Wed, Sep 16
ICN
Seoul
STL
St. Louis
₩1,989,500 Roundtrip, found 4 days ago
₩1,989,500
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Fri, Sep 4 from Seoul to St. Louis, returning Wed, Sep 16, priced at ₩1,989,500 found 4 days ago
Lufthansa
Wed, Jan 13 - Sun, Jan 17
ICN
Seoul
STL
St. Louis
₩2,304,000 Roundtrip, found 1 day ago
₩2,304,000
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Jan 13 from Seoul to St. Louis, returning Sun, Jan 17, priced at ₩2,304,000 found 1 day ago

Trending flights to Washington County

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

Qatar Airways
Fri, Sep 4 - Wed, Sep 16
ICN
Seoul
STL
St. Louis
₩1,989,500 Roundtrip, found 4 days ago
₩1,989,500
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Fri, Sep 4 from Seoul to St. Louis, returning Wed, Sep 16, priced at ₩1,989,500 found 4 days ago

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
At Expedia, we've been channeling our inner Olympic gymnast to give you the most flexible fares available. Simply mark the "No change fee" box right underneath the "Flexible change policies" subheading to find your perfect flight to Washington County.
Which airlines fly to Washington County?
Reserve your fare with Allegiant Air and then begin planning your Washington County travel agenda. This leading carrier offers 125 flights per month to MidAmerica-St. Louis Airport (BLV), a central gateway.
How can I find cheap tickets to Washington County?
For an unbeatable deal to Washington County, book well in advance. Also make use of Expedia's handy "flexible dates" feature at the top of your search results. This will display prices for the days around your travel dates. In the last seven days, ₩716,200 was the best price for a flight to Washington County.
How much is a flight to Washington County?
The price of a round-trip journey to Washington County in the last seven days varied between ₩716,200 and ₩2,304,000. If you were journeying one way from Los Angeles (LAX), you could have scored a cheap seat from only ₩263,900.
What are the most popular airports to fly into in Washington County?
The primary gateway to Washington County, roughly 125 flights touch down at MidAmerica-St. Louis Airport (BLV) each month. Keep an eye out for a great deal, reserve your seat and prepare to experience this popular region.
When is the cheapest time to fly to Washington County?
Leave for Washington County early in the week and you'll usually be rewarded with lower-priced fares. Tuesday is generally the cheapest day to hop on a plane, closely followed by Monday. If you'd like to avoid the costliest flights, stay away from Saturdays.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County cost between ₩716,200 and ₩2,304,000. Prices depend on multiple things, particularly the departure time, carrier, cabin class and how early you make your booking.
What is the best time to go to Washington County?
Nashville, Washington County's most well-known city, is a superb destination to tour around at anytime. Don't like cooler weather? Then venture here from June 20 onward in summer, when temperatures fluctuate from 65ºF to 85ºF. March, August and September is when Nashville lures the biggest crowds.
What months are the cheapest to book a flight to Washington County?
February is the most affordable month to secure a seat for your Washington County vacation. Airfares are priciest during the month of December, so avoid this time if possible.

Book with confidence

About Washington County

Expedia offers flights to Washington County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Washington County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Washington County
*Available to Expedia members.