Cheap flights to Washington County

View €557 flight on Wed, 1 Jul 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

  • Air Canada

    Air Canada

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at €557 for one-way flights and €722 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Tue, 5 May - Tue, 12 May
DUB
Dublin
STL
St. Louis
€722 Return, found 6 days ago
€722
Return
found 6 days ago
Select Aer Lingus flight, departing Tue, 5 May from Dublin to St. Louis, returning Tue, 12 May, priced at €722 found 6 days ago
American Airlines
Fri, 6 Feb - Fri, 13 Feb
DUB
Dublin
STL
St. Louis
€751 Return, found 4 days ago
€751
Return
found 4 days ago
Select American Airlines flight, departing Fri, 6 Feb from Dublin to St. Louis, returning Fri, 13 Feb, priced at €751 found 4 days ago
Iberia
Tue, 10 Feb - Tue, 17 Feb
DUB
Dublin
STL
St. Louis
€769 Return, found 3 hours ago
€769
Return
found 3 hours ago
Select Iberia flight, departing Tue, 10 Feb from Dublin to St. Louis, returning Tue, 17 Feb, priced at €769 found 3 hours ago
British Airways
Mon, 9 Feb - Sun, 15 Feb
DUB
Dublin
STL
St. Louis
€773 Return, found 4 hours ago
€773
Return
found 4 hours ago
Select British Airways flight, departing Mon, 9 Feb from Dublin to St. Louis, returning Sun, 15 Feb, priced at €773 found 4 hours ago
Lufthansa
Fri, 6 Mar - Mon, 9 Mar
DUB
Dublin
STL
St. Louis
€807 Return, found 5 days ago
€807
Return
found 5 days ago
Select Lufthansa flight, departing Fri, 6 Mar from Dublin to St. Louis, returning Mon, 9 Mar, priced at €807 found 5 days ago
Austrian Airlines
Tue, 10 Feb - Tue, 17 Feb
DUB
Dublin
STL
St. Louis
€828 Return, found 3 hours ago
€828
Return
found 3 hours ago
Select Austrian Airlines flight, departing Tue, 10 Feb from Dublin to St. Louis, returning Tue, 17 Feb, priced at €828 found 3 hours ago
Delta
Mon, 9 Feb - Sun, 15 Feb
DUB
Dublin
STL
St. Louis
€833 Return, found 4 hours ago
€833
Return
found 4 hours ago
Select Delta flight, departing Mon, 9 Feb from Dublin to St. Louis, returning Sun, 15 Feb, priced at €833 found 4 hours ago
United
Sun, 15 Feb - Mon, 23 Feb
DUB
Dublin
STL
St. Louis
€839 Return, found 1 day ago
€839
Return
found 1 day ago
Select United flight, departing Sun, 15 Feb from Dublin to St. Louis, returning Mon, 23 Feb, priced at €839 found 1 day ago
Air Canada
Sun, 15 Feb - Sat, 28 Feb
DUB
Dublin
STL
St. Louis
€845 Return, found 5 hours ago
€845
Return
found 5 hours ago
Select Air Canada flight, departing Sun, 15 Feb from Dublin to St. Louis, returning Sat, 28 Feb, priced at €845 found 5 hours ago
British Airways
Thu, 21 May - Tue, 26 May
SNN
Shannon
STL
St. Louis
€865 Return, found 1 day ago
€865
Return
found 1 day ago
Select British Airways flight, departing Thu, 21 May from Shannon to St. Louis, returning Tue, 26 May, priced at €865 found 1 day 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, €722 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 €722 and €865. If you were journeying one way from Dublin (DUB), you could have scored a cheap seat from only €557.
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.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County cost between €722 and €865. 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 holiday. 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.

Aer Lingus
Tue, 5 May - Tue, 12 May
DUB
Dublin
STL
St. Louis
€722 Return, found 6 days ago
€722
Return
found 6 days ago
Select Aer Lingus flight, departing Tue, 5 May from Dublin to St. Louis, returning Tue, 12 May, priced at €722 found 6 days ago
*Available to Expedia members.