Cheap Flights to Washington County | Popular Routes to Washington County from HK$1,177

View HK$1,177 flight on Thu, 9 Apr 2026Opens in a new window

Popular airlines to Washington County

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  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at HK$1,177 for one-way flights and HK$2,330 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,330 Return, found 11 hours ago
HK$2,330
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,330 found 11 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,629 Return, found 11 hours ago
HK$2,629
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,629 found 11 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,706 Return, found 11 hours ago
HK$2,706
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,706 found 11 hours ago
Delta
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,794 Return, found 11 hours ago
HK$2,794
Return
found 11 hours ago
Select Delta flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,794 found 11 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$2,910 Return, found 11 hours ago
HK$2,910
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$2,910 found 11 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$3,104 Return, found 11 hours ago
HK$3,104
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$3,104 found 11 hours ago
American Airlines
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$3,342 Return, found 11 hours ago
HK$3,342
Return
found 11 hours ago
Select American Airlines flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$3,342 found 11 hours ago
United
Fri, 13 Feb - Sat, 14 Feb
SEA
Seattle
STL
St. Louis
HK$3,611 Return, found 11 hours ago
HK$3,611
Return
found 11 hours ago
Select United flight, departing Fri, 13 Feb from Seattle to St. Louis, returning Sat, 14 Feb, priced at HK$3,611 found 11 hours ago
Asiana Airlines
Fri, 6 Feb - Fri, 20 Feb
ICN
Seoul
STL
St. Louis
HK$6,657 Return, found 1 day ago
HK$6,657
Return
found 1 day ago
Select Asiana Airlines flight, departing Fri, 6 Feb from Seoul to St. Louis, returning Fri, 20 Feb, priced at HK$6,657 found 1 day ago
EVA Airways
Tue, 3 Feb - Sat, 7 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$7,329 Return, found 4 days ago
HK$7,329
Return
found 4 days ago
Select EVA Airways flight, departing Tue, 3 Feb from Hong Kong SAR to St. Louis, returning Sat, 7 Feb, priced at HK$7,329 found 4 days ago

About Washington County

Expedia offers flights to Washington County to meet every traveller'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.

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, HK$2,330 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 HK$2,330 and HK$7,329. If you were journeying one way from Seattle (SEA), you could have scored a cheap seat from only HK$1,177.
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 HK$2,330 and HK$7,329. 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 18ºC to 29ºC. 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.

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.

EVA Airways
Tue, 3 Feb - Sat, 7 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$7,329 Return, found 4 days ago
HK$7,329
Return
found 4 days ago
Select EVA Airways flight, departing Tue, 3 Feb from Hong Kong SAR to St. Louis, returning Sat, 7 Feb, priced at HK$7,329 found 4 days ago
*Available to Expedia members.