Cheap flights to Marion County

View €128 flight on Sat, 17 Jan 2026Opens in a new window

Popular airlines to Marion County

  • Aer Lingus

    Aer Lingus

  • Lufthansa

    Lufthansa

  • British Airways

    British Airways

  • Turkish Airlines

    Turkish Airlines

  • American Airlines

    American Airlines

  • Air Serbia

    Air Serbia

  • Swiss International Air Lines

    Swiss International Air Lines

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Cheap round-trip flights to Marion County

Prices were available within the past 7 days and start at €128 for one-way flights and €254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€254 Return, found 6 days ago
€254
Return
found 6 days ago
Select American Airlines flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €254 found 6 days ago
American Airlines
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€262 Return, found 6 days ago
€262
Return
found 6 days ago
Select American Airlines flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €262 found 6 days ago
American Airlines
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€263 Return, found 6 days ago
€263
Return
found 6 days ago
Select American Airlines flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €263 found 6 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€270 Return, found 6 days ago
€270
Return
found 6 days ago
Select Delta flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €270 found 6 days ago
Delta
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€271 Return, found 6 days ago
€271
Return
found 6 days ago
Select Delta flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €271 found 6 days ago
Delta
Sat, 31 Jan - Mon, 2 Feb
BOS
Boston
STL
St. Louis
€283 Return, found 1 day ago
€283
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Boston to St. Louis, returning Mon, 2 Feb, priced at €283 found 1 day ago
United
Sat, 17 Jan - Sun, 18 Jan
BOS
Boston
STL
St. Louis
€339 Return, found 6 days ago
€339
Return
found 6 days ago
Select United flight, departing Sat, 17 Jan from Boston to St. Louis, returning Sun, 18 Jan, priced at €339 found 6 days ago
Lufthansa
Fri, 23 Jan - Thu, 5 Feb
LHR
London
STL
St. Louis
€513 Return, found 23 hours ago
€513
Return
found 23 hours ago
Select Lufthansa flight, departing Fri, 23 Jan from London to St. Louis, returning Thu, 5 Feb, priced at €513 found 23 hours ago
Austrian Airlines
Fri, 23 Jan - Thu, 5 Feb
LHR
London
STL
St. Louis
€545 Return, found 23 hours ago
€545
Return
found 23 hours ago
Select Austrian Airlines flight, departing Fri, 23 Jan from London to St. Louis, returning Thu, 5 Feb, priced at €545 found 23 hours ago
British Airways
Wed, 29 Apr - Tue, 5 May
LHR
London
STL
St. Louis
€551 Return, found 6 days ago
€551
Return
found 6 days ago
Select British Airways flight, departing Wed, 29 Apr from London to St. Louis, returning Tue, 5 May, priced at €551 found 6 days ago

About Marion County

Expedia offers flights to Marion County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Marion 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 Marion County that have flexible change policies?
At Expedia, we've been channeling our inner Olympic gymnast to deliver you the most flexible airfares in town. Just click on "No change fee" directly under the filter heading "Flexible change policies" to find the best flights to Marion County.
Which airlines fly to Marion County?
Dig out your passport, pack your bags and take your pick of these well-known airlines that have flights into or near Marion County:

  • Southwest Airlines - 2,214 flights to or near Marion County each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 789 flights to or near Marion County each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 650 flights to or near Marion County each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Marion County?
You'll always get an amazing deal with Expedia, but our "flexible dates" search function makes it that much easier. Enter your preferred flight date, then tick the flexible dates box above to reveal the cheapest prices for nearby days. €254 was the cheapest price for a flight to Marion County in the last seven days.
How much is a flight to Marion County?
There were lots of bargain fares up for grabs in the last seven days, with the price of a return flight to Marion County varying between €254 and €590. Many lucky travellers purchased one-way tickets from Boston (BOS) for as little as €128.
What are the most popular airports to fly into in Marion County?
Start organising your Marion County holiday by reserving a seat on one of the 4,902 flights each month to Lambert-St. Louis Intl. Airport (STL). This is the region's primary gateway.
How much is a plane ticket to Marion County?
In the last seven days, airfares ranged between €254 and €590. Swipe through our fabulous deals to Marion County, make a booking and then start packing!
What is the best time to go to Marion County?
One of the best times to explore Kinmundy is after June 20 when summer begins. In Marion County's most populous city, average temperatures range from 18ºC to 27ºC during this time — prime weather for seeing the sights! July, August and September are the most popular months to travel to this hot spot.
What months are the cheapest to book a flight to Marion County?
Snap up your ticket in February to enjoy inexpensive flights to Marion County. December is often the most expensive time to buy a fare.

Trending flights to Marion 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 - Sat, 9 May
DUB
Dublin
STL
St. Louis
€590 Return, found 8 hours ago
€590
Return
found 8 hours ago
Select Aer Lingus flight, departing Tue, 5 May from Dublin to St. Louis, returning Sat, 9 May, priced at €590 found 8 hours ago
*Available to Expedia members.